CN106475475A - Plate local heating device and heating method thereof - Google Patents
Plate local heating device and heating method thereof Download PDFInfo
- Publication number
- CN106475475A CN106475475A CN201510619602.XA CN201510619602A CN106475475A CN 106475475 A CN106475475 A CN 106475475A CN 201510619602 A CN201510619602 A CN 201510619602A CN 106475475 A CN106475475 A CN 106475475A
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- plate
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- negative electrode
- grip part
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000009434 installation Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000010304 firing Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Resistance Heating (AREA)
- Resistance Heating (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses a plate local heating device and a heating method thereof, wherein the heating device structurally comprises: the device comprises a first clamp, a second clamp, a power system and a power supply control unit; the first clamp is provided with an upper holding part and a lower holding part which can clamp or release the edge of the plate up and down, and a plurality of positive electrode terminals are arranged in the area of the upper holding part and/or the lower holding part contacting the surface of the plate; the second clamp is also provided with an upper holding part and a lower holding part which can clamp or release the edge of the plate up and down, and a plurality of negative electrode terminals are arranged on the area of the upper holding part and/or the lower holding part contacting the surface of the plate. The power system is used for providing power; the power supply control unit is electrically connected with the positive terminal, the negative terminal and the power system and is used for respectively supplying power to one of the corresponding positive terminal and one of the corresponding negative terminal according to the heating path signal.
Description
Technical field
The present invention is related to a kind of ohmic heating technology of plate, in particular to a kind of directly using plate as the plate area heating installation of resistance and local heating methods.
Background technology
In car body sheet metal using increasing sharply, engineering propertiess and general steel plate due to high-tensile steel have very big difference to high-tensile steel, and the strength of materials increases, press formability declines and produces the problem of shaping aspect.Therefore, the bottleneck being run into during cold punching press of high-tensile steel is as follows：The formable narrow range of high-tensile steel；Formability is poor, is easily broken；Springback capacity is big, and forming accuracy is poor, easily produces various surface defects；Required pressing equipment tonnage is big.In order to improve extend formability and the reducing reflected rate of high-tensile steel, with after sheet material heating, to carry out stamping between heat be effective, and high-tensile steel using heat between stamp forming technology have the characteristics that following：Plasticity well, forming property and hot-working character；Springback capacity will reduce more than 90% than cold punching press；The tonnage of required stamping machine is also less.
Sheet material forms after being heated to uniform temperature in the diel with cooling current, and quenching technology in collocation mould, can make the tensile strength of punching parts and case hardness significantly be lifted simultaneously.
On the other hand, during plate stock is conveyed and heated, as it was previously stated, being usually to be kept or this plate stock of heating using ambient temperature, as shown in figure 1, plate stock 10 applies a pair of fixture 11（This is to two groups of identical structures of fixture, and only shows the fixture 11 of wherein side in Fig. 1）After the upper and lower clamping in this plate stock 10 both sides, before carrying out being delivered to the toolroom machine of next processor, the Resistive heating element 12 of the full wafer on two fixtures 11 can be applied simultaneously, clamped plate stock 10 is heated, or the radiant heating pattern of the temperature using conveying environment, plate stock 10 is heated, but, the firing rate of future has its limit, required temperature range cannot be reached in a short period of time, because of the longer transport heating space of this needs and time, impact manufactures time-histories.Furthermore, above-mentioned known mode of heating is still to carry out overall heating for this plate stock, therefore, even if in a specific processing procedure, if only needing to the regional area of this plate stock is heated, but still will need to carry out according to the program of one integral piece plate stock heating with losing time, quite do not meet the time cost of production.
Content of the invention
Present invention aim at providing a kind of fixture of the power supply combination of the multiple positive and negative heating electrode of tool, so that plate stock is carried out with the heater of partial operation, another object of the present invention is to providing the heating means that a kind of heater of the fixture of the power supply combination using the plurality of positive and negative heating electrode is carried out.
In order to achieve the above object, the invention provides a kind of area heating installation is it is adaptable to the sheet material of conductor, this heater comprises：
One first fixture, it has upper grip part that is upper and lower sandwiched or discharging this plate one lateral edges and once grip part, and on this, the region of this plate surface of contact of grip part and/or this lower grip part is provided with multiple positive electrode terminal；
One second fixture, it has upper grip part that is upper and lower sandwiched or discharging another lateral edges of this plate and once grip part, and on this, the region of this plate surface of contact of grip part and/or this lower grip part is provided with multiple negative electrode terminals；
Unified power system, in order to provide electric power；And
One supply control unit, it is electrically connected with respectively this positive electrode terminal, respectively this negative electrode terminal and this power system, in order to according to a positive and negative electrode conductive heater path signal, to supply electricity to respectively one of them positive electrode terminal of this positive electrode terminal and respectively one of them negative electrode terminal electric current of this negative electrode terminal respectively.
Further, wherein, this first fixture and this second fixture are held on adjacent two sides of this plate.
Further, wherein, this first fixture and this second fixture are held on the two back-to-back relative sides of this plate.
Further, wherein, this first fixture, this second fixture are two jaws of a robotic arm.
Further, wherein, this first fixture be the jaw of a robotic arm, this second fixture be jaw with another robotic arm.
The present invention also provides a kind of plate local heating methods, and its step comprises：
Area heating installation as described in any of the above item is provided；
This first fixture, this second fixture are held on respectively two sides of this plate；And
Apply this supply control unit one of them positive electrode terminal of conducting and one of them negative electrode terminal heating path corresponding, heated with preheating position to the one of this plate.
Further, wherein, this plate heating location is located on this positive electrode terminal of this control unit conducting and the straight line path of this negative electrode terminal.
Further, wherein, this positive electrode terminal that this plate heating location turns on perpendicular to this control unit is the shortest with the straight line path distance of this negative electrode terminal.
The present invention directly with there is electric conductivity this plate/plate stock as resistance, by the positive and negative electrode current lead-through of unified power system to this plate/plate stock, this plate/plate stock quickly can be heated, the electrode that the present invention contacts this plate/plate stock is multigroup diverse location, opposed polarity, so when carrying out supplying electric current, can be according to the local heating position of this plate/plate stock, make the selection of the positive and negative electrode of the shortest heating distance, so that quick local heating is made to this plate/plate stock.
Brief description
Fig. 1 illustrates the schematic perspective view of known plate heater；
Fig. 2 illustrates the schematic perspective view of plate area heating installation one embodiment of the present invention；
Fig. 3 a illustrates the first fixture of the plate area heating installation of the present invention and the front view of an embodiment of the sandwiched plate of the second fixture；
Fig. 3 b illustrates the first fixture of the plate area heating installation of the present invention and the front view of another embodiment of the sandwiched plate of the second fixture；
Fig. 4 a illustrates the axonometric chart of the embodiment that this plate area heating installation is applied to robotic arm of the plate area heating installation of the present invention；
Fig. 4 b illustrates the axonometric chart of the another embodiment that this plate area heating installation is applied to robotic arm of the plate area heating installation of the present invention；
Fig. 5 illustrates the action schematic front view of the clamping work of Fig. 4 b embodiment；
Fig. 6 illustrates the flow chart of steps of the plate local heating methods of the present invention；
Fig. 7 illustrate the plate area heating installation of the present invention system block diagrams；
Fig. 8 illustrates the beeline schematic diagram of inspection the conductive heater path of arbitrary negative terminal of the second fixture and this plate position to be heated with a positive terminal therein of the first fixture of the plate area heating installation of the present invention；
Another positive terminal that Fig. 9 illustrates the first fixture of Fig. 8 embodiment coordinates the conductive heater path of arbitrary negative terminal of the second fixture and the beeline schematic diagram of this plate position to be heated；
Another positive terminal that Figure 10 illustrates the first fixture of Fig. 8 embodiment coordinates the conductive heater path of arbitrary negative terminal of the second fixture and the beeline schematic diagram of this plate position to be heated；
Figure 11 illustrates the direct-type resistance heating schematic diagram of positive terminal cooperation one negative terminal according to this plate regioselective first fixture to be heated of the present invention.
In figure, 10 plate stocks
11 fixtures
12 Resistive heating element
20,20 ' heaters
21,21 ' first fixtures
211,211 ' upper grip parts
Grip part under 212,212 '
213, ,213’
, 213A, 213B, 213C positive electrode terminal
22 second fixtures
Grip part on 221
222 times grip parts
223,223 ', 223A, 223B, 223C negative electrode terminal
23 power systems
24 supply control units
30 plates
31 preheat position
40 positive and negative electrode conductive heater path signals
41a, 41b, 41c, 41d, 41e, 41f, 41g, 41h, 41i heating path
51a,51b,51c；52a, 52b, 52c, 53a, 53b, 53c distance
T slide rail
R robotic arm
R1 jaw
R11 affixed side
R12 active side
R ' robotic arm
R1a, R1b jaw
R11a, R11b affixed side
R12a, R12b active side
The method and step of step S10～step S30 local heating.
Specific embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art can be better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
First, refer to shown in Fig. 2, Fig. 3 a, the heater 20 of the present embodiment is applied to the material of a plate 30 formula, this plate 30 material is necessarily a kind of conductor material that electric current can be allowed to pass through.The structure of the heater 20 of the present embodiment comprises：One first fixture 21, one second fixture 22, unified power system 23 and a supply control unit 24.This first fixture 21 has from upper and lower to upper grip part 211 that is sandwiched or discharging this plate 30 1 lateral edges and once grip part 212, and on this, the region on this plate 30 surface of contact of grip part 211 and/or this lower grip part 212 is provided with multiple positive electrode terminal 213.This second fixture 22 has the upper grip part 221 by upper and lower this plate 30 sandwiched or discharging this another lateral edges of plate 30 and once grip part 222, and on this, the region on the surface of this plate 30 of contact of grip part 221 and/or this lower grip part 222 is provided with multiple negative electrode terminals 223.This power system 23, in order to provide electric power to give this first fixture 21 and this second fixture 22.This supply control unit 24 is connected with those positive electrode terminal 213, those negative electrode terminals 223 and this power system electrical 23, in order to according to a positive and negative electrode conductive heater path signal 40, to supply electricity to those positive electrode terminal 213 positive electrode terminal 213A therein and those negative electrode terminals 223 negative electrode terminal 223C electric current therein respectively.
This first fixture 21 above-mentioned and this second fixture 22 be held on adjacent the two of this plate 30 while or its back-to-back relative two while.
In addition, the first fixture 21 in above-described embodiment and the second fixture 22 are clamped in the way of angle between upper and lower grip part by changing, certainly, clamped it is suitable for upper grip part is reduced with the sliding type of slide block with the distance of lower grip part.As shown in Figure 3 b, the lower grip part 212 ' of wherein this first fixture 21 ' is fixed, upper grip part 211 '（Comprise positive electrode terminal 213 '）A slide rail T can be applied to carry out closer or far from order to sandwiched or discharge this plate 30 with respect to this lower grip part 212 '（Positive electrode terminal 213 ' contacts plate 30）；The lower grip part 222 ' of this second fixture 22 ' is fixed, upper grip part 221 '（Comprise negative electrode terminal 223 '）A slide rail T can be applied to carry out closer or far from order to sandwiched or discharge this plate 30 with respect to this lower grip part 222 '（Negative electrode terminal 223 ' contacts plate 30）, in principle, the present invention using general fixture, but can need the position contacting with plate 30 in this fixture to arrange several positive electrode terminal or negative electrode terminal.
Furthermore, as shown in fig. 4 a, this first fixture 21 is the jaw R1 of a robotic arm R, in the present embodiment, corresponding to the first fixture 21 jaw R1 there is a pair can be adjacent to each other with gripping panel 30 and disconnected from each other to discharge affixed side R11 of plate 30 and active side R12, the one side that this active side R12 faces this gripping panel 30 is provided with foregoing positive electrode terminal 213, and this second fixture 22 and negative electrode terminal 223 are the jaw being arranged on another robotic arm as previously described（The structure of another robotic arm is identical, and therefore in figure is not shown）., in feeding, two jaw R1 are held on the both ends of plate 30 respectively, to clench plate 30, when now two active side R12 are above plate 30, blowing, two robotic arm R can turn over 360 deg simultaneously, make this active side R12 in the lower section of plate 30.
Further, as shown in Fig. 4 b and Fig. 5, change as another kind of form, alternatively it is arranged on the jaw R1a and the right jaw R1b on the left side on uniform machinery arm R ' corresponding to this first fixture 21 aforesaid, this second fixture 22, similarly, the jaw R1a on the left side have adjacent to each other with gripping panel 30 and the jaw R1b to discharge affixed side R11a of plate 30 and active side R12a, the right disconnected from each other have adjacent to each other with gripping panel 30 and affixed side R11b to discharge plate 30 disconnected from each other and active side R12b, a preferably mode is：Left side jaw R1a and the right jaw R1b can flatly carry out relative motion with a track each other, carries out size adjusting to correspond to plate 30 length or width.Separately in this embodiment, as aforesaid positive electrode terminal 213 is surveyed with the activity of both sides jaw (R1a, R1b) in uniform machinery arm R ' with negative terminal 223（R12a,R12b）On；Now the front end on carrying both sides jaw (R1a, R1b) of robotic arm R ' can be with 360 degree of upsets, and in feeding, two jaws (R1a, R1b) are held on the both ends of plate 30 respectively, to clench plate 30, now active side（R12a,R12b）Turning 360 degree when above plate 30, blowing, make this active side（R12a,R12b）Lower section in plate 30.
Refer to again shown in Fig. 6.The plate local heating methods of the present embodiment, its step comprises：
Step S10, is provided as the plate local fast heating device in previous embodiment.
Step S20, this first fixture 21, this second fixture 22 is held on respectively two sides of this plate 30.
Step S30, applies this supply control unit 24 to turn on positive electrode terminal 213A therein and a corresponding negative terminal 223C heating path therein, is heated with preheating position 31 to the one of this plate 30.
Please continue with reference to shown in Fig. 7 planar system figure.In the present embodiment, first fixture 21 on the left of schema, wherein there is the positive electrode terminal 213 that multiple positive electrode terminal (213A, 213B, 213C) form, the second fixture 22 on the right side of schema, wherein there is the negative electrode terminal 223 that multiple negative electrode terminals (223A, 223B, 223C) are formed, middle is plate 30, has one and preheat position 31 in plate 30.
When position 31 will to be preheated to the one of plate 30 heat, first plate 30 both sides are clamped with the first fixture 21, the 2nd fixture 22, and while clamping, proceed by the shorter heating path according to corresponding to this preheats position 31（There is firing rate the fastest）, a positive and negative electrode conductive heater path signal 40.For example, as shown in Figure 8.This positive and negative electrode conductive heater path signal 40 comprises which positive electrode terminal (213A, 213B, 213C) and which negative electrode terminal (223A, 223B, 223C) conducting, a heating path (41a is formed with the straight line path between the positive electrode terminal of this conducting and negative electrode terminal, 41b, 41c, 41d, 41e, 41f, 41g, 41h, 41i).
This heating path (41a, 41b, 41c, 41d, 41e, 41f, 41g, 41h, 41i) it is that firing rate is the fastest, heat highest path, therefore, when the position 31 that preheats of this plate 30 is located on this path or with this path distance the most in short-term, you can so that the position 31 that preheats of the local of this plate 30 lifts temperature the soonest, therefore this heating path (41a, 41b, 41c, 41d, 41e, 41f, 41g, 41h, 41i) mode chosen is as shown in Fig. 7 to Figure 11.
Refer to first shown in Fig. 8，First in the first fixture 21、After 2nd fixture 22 clamps plate 30 both sides，Those positive electrode terminal (213A contacting with this plate 30,213B,213C)、Those negative electrode terminals (223A,223B,223C) from the position 31 that preheats of this plate 30, there are different distances，If after positive electrode terminal 213A is set up conductive path and is energized with this negative electrode terminal 223A，Produce this heating path 41a，And now this preheats position 31 perpendicular to this heating path 41a is apart from 51a、After positive electrode terminal 213A is set up conductive path and is energized with this negative electrode terminal 223B，Produce this heating path 41b，Now this preheats position 31 perpendicular to this heating path 41b is apart from 51b、After positive electrode terminal 213A is set up conductive path and is energized with this negative electrode terminal 223C，Produce this heating path 41c，Now this preheats position 31 perpendicular to this heating path 41c is apart from 51c.In the same manner, refer to shown in Fig. 9, if when positive electrode terminal 213B respectively with this negative electrode terminal 223A, 223B, 223C after setting up conductive path and being energized, produce heating path 41d respectively, 41e and 41f, now this preheat position 31 perpendicular to this heating path 41d be apart from 52a, perpendicular to this heating path 41e be apart from 52b, perpendicular to this heating path 41f be apart from 52c.In the same manner, refer to shown in Figure 10, if when positive electrode terminal 213C respectively with this negative electrode terminal 223A, 223B, 223C after setting up conductive path and being energized, produce heating path 41g respectively, 41h and 41i, now this preheat position 31 perpendicular to this heating path 41g be apart from 53a, perpendicular to this heating path 41h be apart from 53b, perpendicular to this heating path 41i be apart from 53c.
Continue and refer to shown in Figure 11；
Comparing afore-mentioned distance（51a,51b,51c；52a,52b,52c,53a,53b,53c）Size after find this plate 30 preheat position 31 with heating path 41c vertical be the shortest apart from 51c（Can be even zero, that is, this plate heating location 31 is located under heating path in this embodiment is on the heating path 41c of position）Therefore this positive and negative electrode conductive heater path signal is the conducting signal of this positive electrode terminal 213A and this negative electrode terminal 223C, will be after this positive electrode terminal 213A and this negative electrode terminal 223C input current, you can heated with this being preheated position 31 in the time the fastest.
Embodiment described above is only the preferred embodiment lifted for absolutely proving the present invention, protection scope of the present invention not limited to this.Equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, all within protection scope of the present invention.Protection scope of the present invention is defined by claims.
Claims (8)
1. a kind of plate area heating installation is it is adaptable to the sheet material of conductor is it is characterised in that this heater comprises：
One first fixture, it has upper grip part that is upper and lower sandwiched or discharging this plate one lateral edges and once grip part, and on this, the region of this plate surface of contact of grip part and/or this lower grip part is provided with multiple positive electrode terminal；
One second fixture, it has upper grip part that is upper and lower sandwiched or discharging another lateral edges of this plate and once grip part, and on this, the region of this plate surface of contact of grip part and/or this lower grip part is provided with multiple negative electrode terminals；
Unified power system, in order to provide electric power；And
One supply control unit, it is electrically connected with respectively this positive electrode terminal, respectively this negative electrode terminal and this power system, in order to according to a positive and negative electrode conductive heater path signal, to supply electricity to respectively one of them positive electrode terminal of this positive electrode terminal and respectively one of them negative electrode terminal electric current of this negative electrode terminal respectively.
2. it is characterised in that wherein, this first fixture and this second fixture are held on adjacent two sides of this plate to plate area heating installation as claimed in claim 1.
3. plate area heating installation as claimed in claim 1 is it is characterised in that wherein, and this first fixture and this second fixture are held on the two back-to-back relative sides of this plate.
4. it is characterised in that wherein, this first fixture, this second fixture are two jaws of uniform machinery arm to plate area heating installation as claimed in claim 1.
5. plate area heating installation as claimed in claim 1 it is characterised in that wherein, the jaw that this first fixture is the jaw of a robotic arm, this second fixture is another robotic arm.
6. a kind of plate local heating methods are it is characterised in that its step comprises：
Plate area heating installation as any one of claim 1 to 5 is provided；
This first fixture, this second fixture are held on respectively two sides of this plate；And
Apply this supply control unit one of them positive electrode terminal of conducting and one of them negative electrode terminal heating path corresponding, heated with preheating position to the one of this plate.
7. it is characterised in that wherein, this plate heating location is located on this positive electrode terminal of this control unit conducting and the straight line path of this negative electrode terminal plate local heating methods as claimed in claim 6.
8. it is characterised in that wherein, this positive electrode terminal that this plate heating location turns on perpendicular to this control unit is the shortest with the straight line path distance of this negative electrode terminal for plate local heating methods as claimed in claim 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW104127646 | 2015-08-25 | ||
| TW104127646A TWI583797B (en) | 2015-08-25 | 2015-08-25 | Local heating device for plate and heating method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106475475A true CN106475475A (en) | 2017-03-08 |
Family
ID=58238643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510619602.XA Pending CN106475475A (en) | 2015-08-25 | 2015-09-25 | Plate local heating device and heating method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106475475A (en) |
| TW (1) | TWI583797B (en) |
Cited By (5)
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| CN109550852A (en) * | 2018-12-05 | 2019-04-02 | 哈尔滨工业大学 | A kind of quenching formed method in aluminium alloy element Pneumatic flexible heated by electrodes clamping device and mould |
| CN110918739A (en) * | 2019-11-15 | 2020-03-27 | 武汉理工大学 | Rapid heating-forming device and method for aluminum alloy vehicle body component |
| CN114273531A (en) * | 2021-12-23 | 2022-04-05 | 哈尔滨工业大学 | Self-resistance heating device |
| US11504757B2 (en) * | 2017-12-05 | 2022-11-22 | Hyundai Motor Company | Apparatus and method for forming aluminum plate |
| TWI815721B (en) * | 2022-11-04 | 2023-09-11 | 財團法人金屬工業研究發展中心 | Sheet metal forming temperature control device |
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| CN110918739A (en) * | 2019-11-15 | 2020-03-27 | 武汉理工大学 | Rapid heating-forming device and method for aluminum alloy vehicle body component |
| CN114273531A (en) * | 2021-12-23 | 2022-04-05 | 哈尔滨工业大学 | Self-resistance heating device |
| TWI815721B (en) * | 2022-11-04 | 2023-09-11 | 財團法人金屬工業研究發展中心 | Sheet metal forming temperature control device |
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| Publication number | Publication date |
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| TW201708547A (en) | 2017-03-01 |
| TWI583797B (en) | 2017-05-21 |
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