CN108176746A - Drop stamping plate heating means - Google Patents
Drop stamping plate heating means Download PDFInfo
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- CN108176746A CN108176746A CN201711451877.2A CN201711451877A CN108176746A CN 108176746 A CN108176746 A CN 108176746A CN 201711451877 A CN201711451877 A CN 201711451877A CN 108176746 A CN108176746 A CN 108176746A
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- electrode
- drop stamping
- stamping plate
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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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
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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
- B21D37/16—Heating or cooling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Resistance Heating (AREA)
Abstract
The invention discloses a kind of drop stamping plate heating means, it is used in drop stamping heating unit and treats the plate of drop stamping and heated, the drop stamping heating unit includes pedestal, first and second electrode mounting structure of the first side being symmetrically set on the pedestal and the second side and plummer and heater circuit between first and second electrode mounting structure；Heater circuit includes being installed on the first electrode mounting structure and include along the parallel arrangement of several first electrodes in the first side length direction of the drop stamping plate, symmetrical several second electrodes, several adjustable resistances and DC power supply, heating means：S10, drop stamping plate is placed on the plummer；S12, the position for adjusting first electrode and second electrode；S14, the resistance value using each heating electrode loop of resistance value detector detection need the resistance value of the corresponding heating electrode loop of the temperature heated adjusting according to each section of drop stamping plate；S16, drop stamping plate is heated.
Description
Technical field
The present invention relates to drop stamping plate heating art, more particularly to a kind of drop stamping plate heating means.
Background technology
Drop stamping is a kind of manufacturing process for obtaining and possessing excellent performance stamping parts, and process is high strength steel plate
(22MnB) is heated to austenitizing temperature and keeping the temperature homogenizes austenite, then moves quickly into stamping die, in mold
Upper completion punching course and pressurize quenching, finally obtain high-strength steel pressing of the tissue morphology based on martensite.Drop stamping work
The advantages of skill, is in punching course that resistance of deformation is small, and gained product intensity is high, and it is small to spring back opposite cold-stamped part.
Influence of the variation of plate temperature to drip molding quality is notable in its forming process.Since the cooldown rate of plate exists
It is non-uniform in entire punching course, heat during high temperature between plate and mold is transmitted very fast.Just start in punching course
When, punch-nose angle and die entrance touch plate at first, cause between plate and mold due to there is the huge temperature difference at this time
Heat transfer is violent and falls to cause to decline acutely with this portion of material temperature, and this portion of material is caused to start to turn to ferrite and pearlite
Become, so that cannot get martensitic phase during final quenching.With continuing for punching course, contacted with die entrance that
Portion of material continues the sidewall sections that the flowing into mold forms stamping parts；At the same time, the material of flange section is gradually in
The heart is flowed and is contacted with die entrance, this is but also this portion of material temperature declines, and then starts to turn to ferrite and pearlite
Become and make finally to quench obtained martensite content reduction.The non-uniform cooling of the above it is final so that the fillet of drip molding and
Side wall occurs diffusion transformation and makes ferrite and pearlite content more, and the heat-punch member horse for quenching final pressurize
Family name's body content is few and nonuniform organization.
Can influence of the pressurize quenching process of drop stamping to drip molding tissue and performance be also particularly important, obtain martensite
Content is uniform, and the uniform component of performance depends on the cooldown rate of plate various pieces in pressurize quenching process.Only work as plate
Cooldown rate be more than critical cooling rate (for most drop stamping boron steels, this critical value is about 27 DEG C/s) when austenite
Martensite can be changed into.However in pressurize hardening phase, blank and mold contact are often non-uniform, this is because in Re Chong
The material at punch-nose angle and the material at punch-nose angle touch mold at first during pressure, this two-part material cooldown rate adds
It is fast thus generate differential hardening, and during post forming, the effect of drip molding sidewall sections material tension stress and be thinned
When causing finally to mold, the side wall of drip molding cannot be completely bonded with mold shape face and there are gaps.Blank and mold contact are tight
Close local heat by convection current, radiation, pass fall diffusion thus cooldown rate it is very fast, and blank and mold have gap place heat
Amount can only be propagated, therefore cooldown rate is slower in the form of heat radiation and by air dielectric.The inhomogeneities of cooldown rate is fallen
The uneven of tissue has been caused, so that stamping parts overall mechanical properties is uneven, it is slow in sidewall sections cooldown rate, it is obtained
The martensite content obtained is low, and intensity hardness is insufficient.Therefore, there is an urgent need to one kind to carry out phase to drop stamping plate different location
Answer the heating unit of the heating of temperature.
Invention content
In view of this, the present invention it is really necessary to provide it is a kind of can to the different location of drop stamping plate carry out relevant temperature
The drop stamping plate heating means of heating.
A kind of drop stamping plate heating means are provided, drop stamping heating unit is used in and treats the plate of drop stamping and added
Heat, the first electrode mounting structure of first side of the drop stamping heating unit including pedestal, on the pedestal are symmetrically set
In the second electrode mounting structure of the second side on the pedestal and positioned at first electrode mounting structure and second electrode installation knot
The plummer and heater circuit that are used to carry drop stamping plate between structure；The heater circuit includes being installed on described first
On electrode mounting structure and along the parallel arrangement of several first electrodes in the first side length direction of the drop stamping plate, symmetrical peace
Loaded on several second electrodes, several adjustable resistances and the DC power supply on the second electrode mounting structure, often opposite one
First electrode and a second electrode form one group of heating electrode, the first ends of several first electrodes with the drop stamping plate
First side contacts of material, the first end of the second ends of several first electrodes directly with the DC power supply is connected, described
Second side contacts of the first end of several second electrodes with the drop stamping plate, the second end point of several second electrodes
Not by being connected to the second end of the DC power supply, any first electrode and the first of the DC power supply after an adjustable resistance
A resistance value detector is optionally connected in series between end to detect the resistance value of the heating electrode loop of corresponding group；
The heating means include the following steps：
S10, drop stamping plate is placed on the plummer；
S12, the preliminary position for adjusting first electrode and second electrode：According to the first side edge of the drop stamping plate and
Position where second side edge adjusts the first electrode mounting structure positioned at first side of drop stamping plate corresponding to described the
The position of one side edge, so that first electrode and first side contacts of drop stamping plate, adjust and be located at the drop stamping plate
The second electrode mounting structure of the second side, so that the second electrode and the second side contacts of the drop stamping plate；
S14, the resistance value using each heating electrode loop of resistance value detector detection, according to each of drop stamping plate
Section needs the temperature heated to adjust the corresponding resistance value for heating electrode loop；
S16, the drop stamping plate is heated.
Further, the heater circuit further includes another first electrode and another second electrode, another first electrode
With another second electrode form another group of heating electrode, another second electrode directly with the second end phase of the DC power supply
Even；
In the S14 steps, by another group of heating electrode loop of another first electrode and another second electrode
As benchmark, the temperature heated using the resistance value for detecting the branch with the determining branch；
According to the resistance value of the branch and the temperature of corresponding heating, the adjustable electric in each heating electrode loop is adjusted
Resistance, so that the temperature of each heating electrode loop can change with requiring.
Further, the first electrode mounting structure includes the first sliding sleeve, the first slide bar and the first erecting bed；It is described
First sliding sleeve is set on first side on the top of the pedestal, and first slide bar is arranged in first sliding sleeve, and described first
Towards second electrode mounting structure, outer end exposes to the outside of first sliding sleeve for the inner end of slide bar；First erecting bed is consolidated
Due to the outer end of first slide bar and positioned at the top of first slide bar, length and the carrying of first erecting bed
The length of platform matches, and the length direction of several first electrodes along first erecting bed is fixed on first peace parallel
Platform is filled towards the side of second electrode mounting structure；The first electrode mounting structure further includes corresponding with first electrode quantity
Several first nuts and several first adjusting bolts, several first nuts along first erecting bed length direction simultaneously
Row is set on first erecting bed, and the one-to-one thread fitting in outer end of several first adjusting bolts is in the first spiral shell
On mother, inner end connects correspondingly with several first electrode insulation；
The second electrode mounting structure is symmetrical arranged with the first electrode mounting structure, the second electrode installation knot
Structure includes the second sliding sleeve, the second slide bar and the second erecting bed；Second sliding sleeve is set on the second side on the top of the pedestal,
Second slide bar is arranged in second sliding sleeve, and the inner end of second slide bar is towards first electrode mounting structure, outer end
Expose to the outside of second sliding sleeve；Second erecting bed is fixed on the outer end of second slide bar and positioned at described second
The top of slide bar, the length and the length of the plummer of second erecting bed match, and several second electrodes are along institute
The length direction for stating the second erecting bed is fixed on second erecting bed towards the side of first electrode mounting structure parallel；It is described
Second electrode mounting structure further includes several second nuts corresponding with second electrode quantity and several second adjusting bolts, institute
The length direction for stating several second nuts along second erecting bed is set to parallel on second erecting bed, and described several
For the one-to-one thread fitting in outer end of two adjusting bolts on the second nut, inner end is electric with described several second correspondingly
Pole insulation connection；
In the S12 steps, first slide bar is adjusted to adjust the position of first erecting bed, so as to adjust
The position of first electrode is stated, when first slide bar is moved to the direction of the second electrode mounting structure, described first
Erecting bed is with first slide bar and the first side direction to the drop stamping plate is close so that the first electrode to
First side direction of the drop stamping plate is close, and a part of first electrode is contacted with first side edge outermost part, stops
The movement of first erecting bed；According to the shape of first side of drop stamping plate, will not connect with the first side edge also
Tactile first electrode is adjusted again, that is, adjusts first bolt so that first bolt is towards first side
One end is moved to first side of drop stamping plate, so that the first electrode connects with the corresponding portion of first side
It touches；
In the S12 steps, second slide bar is adjusted to adjust the position of second erecting bed, so as to adjust
The position of second electrode is stated, when second slide bar is moved to the direction of the first electrode mounting structure, described second
Erecting bed is with second slide bar and the second side direction to the drop stamping plate is close so that the second electrode to
Second side direction of the drop stamping plate is close, and a part of second electrode is contacted with second side edge outermost part, stops
The movement of second erecting bed；According to the shape of the drop stamping plate the second side, will not connect with the second side edge also
Tactile second electrode is adjusted again, that is, adjusts second bolt so that second bolt is towards the second side
One end is moved to the drop stamping plate the second side, so that the second electrode connects with the corresponding portion of the second side
It touches.
Description of the drawings
Fig. 1 is the circuit diagram of the heater circuit of one embodiment of drop stamping plate heating unit of the present invention.
Fig. 2 is the structure diagram of one embodiment of drop stamping plate heating unit of the present invention.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the enlarged drawing of part A in Fig. 3.
Fig. 5 is the flow chart of one embodiment of drop stamping plate heating means of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 is referred to, the drop stamping plate heating unit of the present embodiment is for heating drop stamping plate, the heat
Punching press plate heating unit includes heater circuit 1, and the heater circuit 1 includes several first electrodes 101, several second electrodes
102nd, several adjustable resistances 103 and DC power supply 104, several first electrodes 101 are along the of the drop stamping plate 300
Side length direction is set parallel, and several second electrodes 102 are symmetrically set in the second side of the drop stamping plate 300, often
An opposite first electrode 101 and a second electrode 102 one group of heating electrode of formation, the first of several first electrodes 101
Hold the first side contacts with the drop stamping plate 300, the second ends of several first electrodes 101 directly with it is described straight
The first end in galvanic electricity source 104 is connected, the first ends of several second electrodes 102 with the drop stamping plate 300 second
Side contacts, the second end of several second electrodes 102 after an adjustable resistance 103 respectively by being connected to the DC power supply
104 second end is optionally connected in series with one between any first electrode 101 and the first end of the DC power supply 104
Resistance value detector is to detect the resistance value of the corresponding heating electrode loop with the corresponding group of detection, so that it is determined that the heating electrode
The regulated quantity of adjustable resistance 103 in circuit.
In the present solution, the first electrode 101 and second electrode 102 of each group of heating electrode form a heating circuit, pass through
Resistance value detector detects the resistance value of the adjustable resistance 103 in this group of electrode, to adjust the heating temperature of heating electrode, so as to
Heating temperature can be adjusted for temperature required for 300 each section of plate.It is adjustable by changing in each group of heating electrode
The size of 103 resistance value of resistance, to realize, electric current is strong at drop stamping plate 300 (blank, hereinafter referred to as plate 300) different cross section
The difference of degree, so as to fulfill the customization of blank temperature distribution so that 300 each section temperature of plate is controllable, improves drop stamping
Product quality.
In this specific embodiment, the second ends of several first electrodes 101 directly with the DC power supply 104 just
Extremely it is connected, the second end of several second electrodes 102 after an adjustable resistance 103 respectively by being connected to the DC power supply
104 cathode, optionally one resistance value of series connection detects between any electrode and the anode of the DC power supply 104
Instrument with detect it is corresponding be connected with second electrode 102 mutually adjust resistance resistance value.
In this specific embodiment, the mode of plug type can be used with detecting each heating electrode in the resistance value detector
Resistance value in circuit.The resistance value detector is multimeter 105.The multimeter 105 can be inserted directly into every one first electricity
To detect the resistance value of the adjustable resistance 103 in corresponding one group of heating electrode between pole 101 and the DC electrode.
The heater circuit 1 further includes another first electrode 101 and another second electrode 102, another first electrode 101
Form another group of heating electrode with another second electrode 102, another second electrode 102 directly with the DC power supply 104
Second end is connected.Group heating electrode can be used as benchmark, in order to which multimeter 105 adjusts above-mentioned resistance value.
300 heating unit of drop stamping plate of the present invention, employs several groups of heating electrodes composition heating electrodes, several groups
Heating electrode is set parallel along the length direction of plate 300, first electrode 101 and second electrode in each group of heating electrode
102 forming circuits, the electric current of each branch can be adjusted, and sketch plate material 300 can be made to obtain uniform Temperature Distribution, Er Qieke
It is customized with the heated current to different zones.It can realize the Temperature Distribution of customization, it is hot press-formed in plate 300
In, initial plate 300 is made to obtain different tissues, intensity adjustable part can be obtained in follow-up drop stamping.
Refer to Fig. 2 to Fig. 4, the drop stamping plate heating unit include it is identical with above-described embodiment structure or function or
Similar heater circuit 1, the drop stamping plate heating unit further include a pedestal 20, the first side on the pedestal 20
First electrode mounting structure 22, be symmetrically set on the pedestal 20 the second electrode mounting structure 24 of the second side and positioned at
Plummer 26 between one electrode mounting structure 22 and second electrode mounting structure 24, the drop stamping plate 300 are set to institute
The upper surface of plummer 26 is stated, several first electrodes 101 are installed on the first electrode mounting structure 22 rear with being placed in
300 first side of drop stamping plate on the plummer 26 is in contact, and several second electrodes 102 are installed on second electricity
It is in contact after on pole mounting structure 24 with 300 the second side of drop stamping plate being placed on the plummer 26.
In the present embodiment, in order to adapt to different shape and size of drop stamping plates 300, the first electrode installation knot
Structure 22 and second electrode mounting structure 24 can be moved to opposite direction or in the opposite direction, so, it is possible by described
First electrode mounting structure 22 and second electrode mounting structure 24 can adjust the spacing distance between them, enable adaptation to
Different in width drop stamping plate 300.Specifically：
The first electrode mounting structure 22 includes the first sliding sleeve 221, the first slide bar 222 and the first erecting bed 223.Institute
The first sliding sleeve 221 is stated set on first side on the top of the pedestal 20, first slide bar 222 is arranged in first sliding sleeve
In 221, towards second electrode mounting structure 24, outer end exposes to first sliding sleeve 221 for the inner end of first slide bar 222
Outside.First erecting bed 223 is fixed on the outer end of first slide bar 222 and is located at the top of first slide bar 222,
The length of first erecting bed 223 and the length of the plummer 26 match, and several first electrodes 101 are along described
The length direction of one erecting bed 223 is fixed on first erecting bed 223 towards the side of second electrode mounting structure 24 parallel.
In the present embodiment, one first fixed ear 224, first installation are provided in the outer end of first slide bar 222
The bottom surface of platform 223 is connect with the top surface of first fixed ear 224.
The quantity of first sliding sleeve 221 can be a set of, and when being a set of, first sliding sleeve 221 is along the pedestal
20 length direction setting, the i.e. length of the first sliding sleeve 221 and the length of the pedestal 20 match.When being a set of, in institute
It states on the first sliding sleeve 221 to be spaced apart along its length and is equipped with multiple first slide openings, the axial direction of first slide opening and described the
The axial direction (length direction) of one sliding sleeve 221 is vertically, corresponding, 222 quantity of the first slide bar and the first slide opening quantity
Match, be arranged in correspondingly in the first slide opening.The quantity of first sliding sleeve 221 is alternatively more sets, cover when to cover more more
The length direction of first sliding sleeve 221 along the pedestal 20 is arranged at intervals at first side on the top of pedestal 20, in every suit first
The first slide opening, the quantity of first slide bar 222 and more set 221 quantity phases of the first sliding sleeve are offered on sliding sleeve 221
Match, be arranged in correspondingly in corresponding first sliding sleeve 221.
In order to enable the position of each first electrode 101 can be adjusted so that in same group of heating electrode
One electrode 101 can be moved to 102 direction of second electrode or be moved to far from 102 direction of second electrode, to adapt to not similar shape
The drop stamping plate 300 of shape, the first electrode mounting structure 22 of the present embodiment further include：It is corresponding with 101 quantity of first electrode
Several first nuts 225 and several first adjusting bolts 226, several first nuts 225 are along first erecting bed 223
Length direction be set to parallel on first erecting bed 223, the outer ends of several first adjusting bolts 226 corresponds
Thread fitting on the first nut 225, inner end connects correspondingly with several insulation of first electrodes 101.
Further, it is respectively arranged with a first insulator 281 in several first electrodes 101, described several
The inner end of one adjusting bolt 226 is insulated by corresponding first insulator 281 with corresponding first electrode 101 to be connected.
The second electrode mounting structure 24 is symmetrical arranged with the first electrode mounting structure 22.The second electrode peace
Assembling structure 24 includes the second sliding sleeve 241, the second slide bar 242 and the second erecting bed 243.Second sliding sleeve 241 is set on described
The second side on the top of pedestal 20, second slide bar 242 are arranged in second sliding sleeve 241, second slide bar 242
Towards first electrode mounting structure 22, outer end exposes to the outside of second sliding sleeve 241 for inner end.Second erecting bed 243
It is fixed on the outer end of second slide bar 242 and positioned at the top of second slide bar 242, the length of second erecting bed 243
It spends and matches with the length of the plummer 26, length direction of several second electrodes 102 along second erecting bed 243
It is fixed on second erecting bed 243 parallel towards the side of first electrode mounting structure 22.
The quantity of second sliding sleeve 241 can be a set of, and when being a set of, second sliding sleeve 241 is along the pedestal
20 length direction setting, the i.e. length of the second sliding sleeve 241 and the length of the pedestal 20 match.When being a set of, in institute
It states on the second sliding sleeve 241 to be spaced apart along its length and is equipped with multiple second slide openings, the axial direction of second slide opening and described the
The axial direction (length direction) of two sliding sleeves 241 is vertically, corresponding, 242 quantity of the second slide bar and the second slide opening quantity
Match, be arranged in correspondingly in the second slide opening.The quantity of second sliding sleeve 241 is alternatively more sets, cover when to cover more more
The length direction of second sliding sleeve 241 along the pedestal 20 is arranged at intervals at the second side on the top of pedestal 20, in every suit second
The second slide opening, the quantity of second slide bar 242 and more set 241 quantity phases of the second sliding sleeve are offered on sliding sleeve 241
Match, be arranged in correspondingly in corresponding second sliding sleeve 241.
In the present embodiment, one second fixed ear 244, second installation are provided in the outer end of second slide bar 242
The bottom surface of platform 243 is connect with the top surface of second fixed ear 244.
In order to enable the position of each second electrode 102 can be adjusted so that in same group of heating electrode
Two electrodes 102 can be moved to 101 direction of first electrode or be moved to far from 101 direction of first electrode, to adapt to not similar shape
The drop stamping plate 300 of shape, the second electrode mounting structure 24 of the present embodiment further include：It is corresponding with 102 quantity of second electrode
Several second nuts 245 and several second adjusting bolts 246, several second nuts 245 are along second erecting bed 243
Length direction be set to parallel on second erecting bed 243, the outer ends of several second adjusting bolts 246 corresponds
Thread fitting on the second nut 245, inner end connects correspondingly with several insulation of second electrodes 102.
Further, it is respectively arranged with a second insulator 282 in several second electrodes 102, described several
The inner end of two adjusting bolts 246 is insulated by corresponding second insulator 282 with corresponding second electrode 102 to be connected.
In the present embodiment, the plummer 26 is insulation plummer 26, and the insulation plummer 26 is set to described first
On 221 and second sliding sleeve 241 of sliding sleeve, an insulating pad 21 is additionally provided on the plummer 26.
The drop stamping plate heating unit of the present invention, first electrode mounting structure 22 and second electrode mounting structure 24 it
Between distance be adjusted so that the distance between first electrode 101 and second electrode 102 for being mounted thereon are adjustable, can
Adapt to the drop stamping plate 300 of different in width.It is connected between respective electrode and nut by adjustable bolt again, it can be independent
The position that any electrode corresponds to drop stamping plate 300 is adjusted, can adapt to, in different shape (such as abnormity) plate 300, make
Along the parallel electrode of 300 length direction of plate can with the shape of plate 300 adjusting position, it is equal that each electrode is effectively ensured
It can contact with plate 300, effectively plate 300 is heated.It compares with traditional electric current heating, it can be according to plate 300
The position of shape adjustment electrode, so the present invention can carry out resistance heating, widened resistance to plate 300 in irregular shape
The application of heating.Multiple electrodes composition heater circuit 1 is employed, the electric current of each branch can be adjusted, and can make sketch plate material
300 obtain uniform Temperature Distribution, and the heated current of different zones can be customized.It can realize the temperature of customization
Degree distribution, in plate 300 is hot press-formed, makes initial plate 300 obtain different tissues, can be obtained in follow-up drop stamping
Obtain intensity adjustable part.
Example is specifically combined, the heat-punch member is illustrated this drop stamping plate heating unit by taking B columns as an example.Please after
It is continuous that referring to Fig. 3, the B columns plate 300 after being cut is sketch plate substantially of a lateral H shape, have width positioned at head end compared with
The stage casing of long first section, the narrower width positioned at the longer endpiece of the width of tail end and between first section and endpiece.Adding
Before heat, the previous B columns plate 300 is placed on plummer 26, then installs first electrode mounting structure 22 and second electrode
Structure 24 is moved to opposite direction, so as to the position of several first electrodes 101 of coarse adjustment and several second electrodes 102 so that the
One electrode 101 and second electrode 102 contact the two sides of longest one section of 300 width of B columns plate first, then fine tuning and B again
The first electrode 101 of the partial response of 300 narrower width of column plate and second electrode 102, so that 300 first side of B columns plate
First electrode 101 be in contact with it, the second electrode 102 of 300 the second side of B columns plate is in contact with it, each so as to ensure
Electrode is in contact with B columns plate 300, makes all to be clamped by electrode in the width direction of plate 300.In this way, positioned at same disconnected
The first electrode 101 and second electrode 102 in face form one group of heating electrode, and the part near the section is heated.To protect
Card 300 temperature of plate is uniformly distributed, and the resistance sizes of each branch are measured using universal meter, are adjusted by adjustable resistance 103
Resistance sizes.After integrated circuit is set, power on progress plate 300 and heat.To realize the intensity adjustable forming of part,
By 103 regulation resistance size of adjustable resistance, 300 different zones heated current size of plate is customized, plate 300 is made to obtain difference
Initial structure.
Fig. 5 is referred to, Fig. 5 is the flow chart of one embodiment of drop stamping plate heating means of the present invention.The heat punching of the present embodiment
Pressing plate heating means include：
S10, drop stamping plate is placed on the plummer；
S12, the position for adjusting first electrode and second electrode：According to the first side edge and second of the drop stamping plate
Position where lateral edges adjusts the first electrode mounting structure positioned at first side of drop stamping plate and corresponds to first side
The position at edge, so that first electrode and first side contacts of drop stamping plate, adjust and be located at the drop stamping plate second
The second electrode mounting structure of side, so that the second electrode and the second side contacts of the drop stamping plate；Wherein：
First slide bar is adjusted to adjust the position of first erecting bed, so as to adjust the position of the first electrode
It puts, when first slide bar is moved to the direction of the second electrode mounting structure, first erecting bed is with described the
One slide bar and the first side direction to the drop stamping plate is close so that the first electrode is to the drop stamping plate
The first side direction it is close, a part of first electrode is contacted with first side edge outermost part, stops first erecting bed
Movement；According to the shape of first side of drop stamping plate, by also not with the first electrode that the first side edge contacts into
Row is adjusted again, that is, adjusts first bolt so that one end of first bolt towards first side is rushed to the heat
The first side of pressing plate is moved, so that the first electrode is in contact with the corresponding portion of first side；
In the S12 steps, second slide bar is adjusted to adjust the position of second erecting bed, so as to adjust
The position of second electrode is stated, when second slide bar is moved to the direction of the first electrode mounting structure, described second
Erecting bed is with second slide bar and the second side direction to the drop stamping plate is close so that the second electrode to
Second side direction of the drop stamping plate is close, and a part of second electrode is contacted with second side edge outermost part, stops
The movement of second erecting bed；According to the shape of the drop stamping plate the second side, will not connect with the second side edge also
Tactile second electrode is adjusted again, that is, adjusts second bolt so that second bolt is towards the second side
One end is moved to the drop stamping plate the second side, so that the second electrode connects with the corresponding portion of the second side
It touches.
S14, the resistance value using each heating electrode loop of resistance value detector detection, according to each of drop stamping plate
Section needs the temperature heated to adjust the corresponding resistance value for heating electrode loop；
Specifically, using another group of heating electrode loop of another first electrode and another second electrode as benchmark,
The temperature heated using the resistance value for detecting the branch with the determining branch；According to the resistance value of the branch and it is corresponding plus
The temperature of heat adjusts the adjustable resistance in each heating electrode loop, so that the temperature of each heating electrode loop can be with
Change with requiring.
S16, the drop stamping plate is heated.
Embodiment of the present invention, above-mentioned heating means can be suitable for sketch plate and heat, and can be adapted for different
The drop stamping plate heating of size dimension, it is applied widely, it is versatile.And the heating temperature in each section of drop stamping plate
Control makes plate obtain different tissues, intensity adjustable part can be obtained in follow-up drop stamping.
It these are only embodiments of the present invention, be not intended to limit the scope of the invention, it is every to utilize the present invention
The equivalent structure or equivalent flow shift that specification and accompanying drawing content are made directly or indirectly is used in other relevant technologies
Field is included within the scope of the present invention.
Claims (3)
1. a kind of drop stamping plate heating means, it is characterised in that：Be used in drop stamping heating unit treat the plate of drop stamping into
Row heating, the drop stamping heating unit include pedestal, the first side on the pedestal first electrode mounting structure, right
Claim to be set on the second electrode mounting structure of the second side on the pedestal and pacify positioned at first electrode mounting structure and second electrode
The plummer and heater circuit that are used to carry drop stamping plate between assembling structure；The heater circuit includes being installed on described
On first electrode mounting structure and along parallel arrangement of several first electrodes in the first side length direction of the drop stamping plate, right
Claim several second electrodes, several adjustable resistances and the DC power supply that are installed on the second electrode mounting structure, often relatively
A first electrode and a second electrode form one group of heating electrode, the first ends of several first electrodes is rushed with the heat
First side contacts of pressing plate material, the first end of the second ends of several first electrodes directly with the DC power supply are connected,
Second side contacts of the first end of several second electrodes with the drop stamping plate, the second of several second electrodes
End is respectively by being connected to the second end of the DC power supply, any first electrode and the DC power supply after an adjustable resistance
A resistance value detector is optionally connected in series between first end to detect the resistance value of the heating electrode loop of corresponding group；
The heating means include the following steps：
S10, drop stamping plate is placed on the plummer；
S12, the position for adjusting first electrode and second electrode：According to the first side edge of the drop stamping plate and second side
Position where edge adjusts the first electrode mounting structure positioned at first side of drop stamping plate and corresponds to the first side edge
Position so that first electrode and first side contacts of drop stamping plate, are adjusted positioned at the drop stamping plate the second side
Second electrode mounting structure, so that the second electrode and the second side contacts of the drop stamping plate；
S14, the resistance value using each heating electrode loop of resistance value detector detection, according to each section of drop stamping plate
The temperature heated is needed to adjust the resistance value of corresponding heating electrode loop；
S16, the drop stamping plate is heated.
2. drop stamping plate heating means as described in claim 1, it is characterised in that：The heater circuit further includes another
One electrode and another second electrode, another first electrode and another second electrode form another group of heating electrode, this another the
Second end of two electrodes directly with the DC power supply is connected；
In the S14 steps, using another group of heating electrode loop of another first electrode and another second electrode as
Benchmark, the temperature heated using the resistance value for detecting the branch with the determining branch；
According to the resistance value of the branch and the temperature of corresponding heating, the adjustable resistance in each heating electrode loop is adjusted,
So that the temperature of each heating electrode loop can change with requiring.
3. drop stamping plate heating means as described in claim 1, it is characterised in that：The first electrode mounting structure includes
First sliding sleeve, the first slide bar and the first erecting bed；First sliding sleeve is set on first side on the top of the pedestal, and described the
One slide bar is arranged in first sliding sleeve, and towards second electrode mounting structure, outer end exposes to for the inner end of first slide bar
The outside of first sliding sleeve；First erecting bed is fixed on the outer end of first slide bar and positioned at first slide bar
Top, the length and the length of the plummer of first erecting bed match, and several first electrodes are along described first
The length direction of erecting bed is fixed on first erecting bed towards the side of second electrode mounting structure parallel；First electricity
Pole mounting structure further includes several first nuts corresponding with first electrode quantity and several first adjusting bolts, described several
The length direction of first nut along first erecting bed is set to parallel on first erecting bed, and described several first are adjusted
The one-to-one thread fitting in outer end of bolt on the first nut, with several first electrodes insulate correspondingly by inner end
Connection；
The second electrode mounting structure is symmetrical arranged with the first electrode mounting structure, the second electrode mounting structure packet
Include the second sliding sleeve, the second slide bar and the second erecting bed；Second sliding sleeve is set on the second side on the top of the pedestal, described
Second slide bar is arranged in second sliding sleeve, and towards first electrode mounting structure, outer end is exposed for the inner end of second slide bar
In the outside of second sliding sleeve；Second erecting bed is fixed on the outer end of second slide bar and positioned at second slide bar
Top, the length and the length of the plummer of second erecting bed matches, and several second electrodes are along described
The length direction of two erecting beds is fixed on second erecting bed towards the side of first electrode mounting structure parallel；Described second
Electrode mounting structure further includes several second nuts corresponding with second electrode quantity and several second adjusting bolts, if described
The length direction of dry second nut along second erecting bed is set to parallel on second erecting bed, and described several second adjust
The one-to-one thread fitting in outer end of bolt is saved on the second nut, inner end is exhausted with several second electrodes correspondingly
Edge connects；
In the S12 steps, first slide bar is adjusted to adjust the position of first erecting bed, so as to adjust described the
The position of one electrode, when first slide bar is moved to the direction of the second electrode mounting structure, first installation
Platform is with first slide bar and the first side direction to the drop stamping plate is close, so that the first electrode is to described
First side direction of drop stamping plate is close, and a part of first electrode is contacted with first side edge outermost part, described in stopping
The movement of first erecting bed；According to the shape of first side of drop stamping plate, by what is do not contacted with the first side edge also
First electrode is adjusted again, that is, adjust first bolt so that first bolt towards first side one end
It is moved to first side of drop stamping plate, so that the first electrode is in contact with the corresponding portion of first side；
In the S12 steps, second slide bar is adjusted to adjust the position of second erecting bed, so as to adjust described the
The position of two electrodes, when second slide bar is moved to the direction of the first electrode mounting structure, second installation
Platform is with second slide bar and the second side direction to the drop stamping plate is close, so that the second electrode is to described
Second side direction of drop stamping plate is close, and a part of second electrode is contacted with second side edge outermost part, described in stopping
The movement of second erecting bed；According to the shape of the drop stamping plate the second side, by what is do not contacted with the second side edge also
Second electrode is adjusted again, that is, adjusts second bolt so that second bolt is towards one end of the second side
It is moved to the drop stamping plate the second side, so that the second electrode is in contact with the corresponding portion of the second side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711451877.2A CN108176746A (en) | 2017-12-27 | 2017-12-27 | Drop stamping plate heating means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711451877.2A CN108176746A (en) | 2017-12-27 | 2017-12-27 | Drop stamping plate heating means |
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| Publication Number | Publication Date |
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| CN108176746A true CN108176746A (en) | 2018-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002248525A (en) * | 2001-02-22 | 2002-09-03 | Sumitomo Metal Ind Ltd | Method for hot pressing metal plate and apparatus therefor |
| KR20130100076A (en) * | 2013-08-05 | 2013-09-09 | 현대하이스코 주식회사 | Method for manufacturing high strength steel shaped body |
| CN204321400U (en) * | 2014-12-15 | 2015-05-13 | 天津市科华焊接设备有限公司 | There is multiple electrode and depress the welding machine of mesh that single electrode welds respectively simultaneously |
| CN106470777A (en) * | 2014-06-24 | 2017-03-01 | 高周波热錬株式会社 | The manufacture method of heating means, heater and compressing product |
| CN106825185A (en) * | 2016-11-25 | 2017-06-13 | 机械科学研究总院先进制造技术研究中心 | A kind of superplastic forming equipment platform heating means |
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2017
- 2017-12-27 CN CN201711451877.2A patent/CN108176746A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002248525A (en) * | 2001-02-22 | 2002-09-03 | Sumitomo Metal Ind Ltd | Method for hot pressing metal plate and apparatus therefor |
| KR20130100076A (en) * | 2013-08-05 | 2013-09-09 | 현대하이스코 주식회사 | Method for manufacturing high strength steel shaped body |
| CN106470777A (en) * | 2014-06-24 | 2017-03-01 | 高周波热錬株式会社 | The manufacture method of heating means, heater and compressing product |
| CN204321400U (en) * | 2014-12-15 | 2015-05-13 | 天津市科华焊接设备有限公司 | There is multiple electrode and depress the welding machine of mesh that single electrode welds respectively simultaneously |
| CN106825185A (en) * | 2016-11-25 | 2017-06-13 | 机械科学研究总院先进制造技术研究中心 | A kind of superplastic forming equipment platform heating means |
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Application publication date: 20180619 |