CN105772549B - Extra-high voltage iron tower is with big specification angle steel high-frequency heating one side bender - Google Patents

Extra-high voltage iron tower is with big specification angle steel high-frequency heating one side bender Download PDF

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Publication number
CN105772549B
CN105772549B CN201610299555.XA CN201610299555A CN105772549B CN 105772549 B CN105772549 B CN 105772549B CN 201610299555 A CN201610299555 A CN 201610299555A CN 105772549 B CN105772549 B CN 105772549B
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China
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workpiece
frequency heating
base
bending
fixed
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CN105772549A (en
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龚正洪
张飞
张建勇
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JIANGSU XIANGYU POWER EQUIPMENT MANUFACTURING Co Ltd
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JIANGSU XIANGYU POWER EQUIPMENT MANUFACTURING Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00Bending rods, profiles, or tubes
    • B21D7/16Auxiliary equipment, e.g. for heating or cooling of bends
    • B21D7/162Heating equipment

Abstract

The invention discloses a kind of extra-high voltage iron tower with big specification angle steel high-frequency heating one side bender, including base, the rear and front end of base top surface is symmetrically fixed with workpiece rack, the top of workpiece rack is up and down to be connected with briquetting, the bottom surface of briquetting is fixed with bending pressing mold, and for bending pressing mold between workpiece rack, briquetting provides driving force by hydraulic piston, hydraulic piston is fixed on top plate, and top plate is fixed by column and base;Base is respectively arranged on the left side and the right side high frequency heating machine, and the shape that the heating coil of high frequency heating machine is surrounded is identical with the bending deformed region shape of workpiece.From structure of the present invention, by the way that high frequency heating machine and bending mechanism are combined together, so that it can be bent immediately without turnover after workpiece heat, avoid thermal loss, reduce energy consumption, workpiece turnover is eliminated simultaneously, improves production efficiency, it also avoid the hidden danger that operative employee is scalded in workpiece circular flow by workpiece.

Description

Extra-high voltage iron tower is with big specification angle steel high-frequency heating one side bender
Technical field
The present invention relates to the big specification angle steel manufacturing field of extra-high voltage iron tower, and in particular to a kind of big specification of extra-high voltage iron tower Angle steel high-frequency heating one side bender.
Background technology
Extra-high pressure energy greatly promotes the conveying capacity of China's power network.Shown according to the data of State Grid Corporation of China's offer, one time Road extra-high voltage direct-current power network can send 6,000,000 kilowatts of electricity, equivalent to 5 to 6 times of existing 500 Kilovolt Direct Current net, and send Electrical distance is also 2 to 3 times of the latter, therefore efficiency greatly improves.In addition, calculating according to State Grid Corporation of China, same power is conveyed Electricity, if using extra high voltage line transmission of electricity can than saved using 500 kilovolts of high-tension lines 60% land resource.
Steel tower needed for extra-high voltage conveying compares the steel tower of common high-pressure delivery, and the material requirements to its structure is higher, Typically need width 160 ~ 350 millimeters of scopes, thickness 8 ~ 35 millimeters of scopes angle steel.Due to steel tower construction when Wait, it is necessary to mutually be spliced.In order to normally splice, angle steel is required for carrying out certain bending, angle of release or close angle.But For the angle steel of so big specification, common cold press can not be bent, it is necessary to after workpiece heat to red heat state, Bent again.All it is that big specification angle steel workpiece is placed in heating furnace to be heated in industry at present, band workpiece heat is to red Workpiece week is gone to bar folder again and bent by Warm status.Due to needing to have enough to meet the need after heating, the workpiece after heating is exposed to outside, The thermal loss of workpiece is not only resulted in, and can all have the hidden danger being burned for worker.Further, since workpiece is whole in itself It is heated, during bending, the region that need not be bent originally be able to may also deform upon, and cause workpiece to bend inferior Rate is of a relatively high.
The content of the invention
It is an object of the invention to:Overcome the deficiencies in the prior art, there is provided a kind of extra-high voltage iron tower is high with big specification angle steel Frequency heating single-side bender, by the way that high frequency heating machine and bending mechanism are combined together so that without week after workpiece heat Turn to be bent immediately, avoid thermal loss, reduce energy consumption, while eliminate workpiece turnover, improve production efficiency, It it also avoid the hidden danger that operative employee is scalded in workpiece circular flow by workpiece;Become by the way that heating coil is arranged into workpiece bending The shape in shape region, i.e., the bending deformed region of heated partses, on the premise of the effect of workpiece bending is ensured, reduce work The area of part heating, it is possible to reduce the energy consumption needed for heated partses;By the way that heating coil is arranged into workpiece bending deformation The shape in region, i.e., the bending deformed region of heated partses, ensure that not heated region will not during workpiece bending Deform upon, so as to ensure the bending quality of workpiece, and the inferior rate of bending for reducing workpiece;Pass through the work of centralising device With workpiece being carried out into centering, so as to ensure that the bending quality of workpiece;Column is the support column of top plate, is also briquetting Lead, simplify device structure, improve the utilization rate of column;Can be by the effect accommodating tool of rollover stand When workpiece is complete, swung together with the both ends of workpiece, make the both ends of workpiece keep being bonded with accommodating tool all the time, to work Part provides enough supports and stiction, ensures that workpiece will not move during bending to bending part, ensure that product Bend quality;By the effect of spring A and spacing mandril, returning face plate can be made to flip over swing automatically when not bending To horizontality, prepared for next bending;By the effect of bumper, reduce impact of the spacing mandril to accommodating tool and make With the service life of extension device;Due to workpiece during the bending under the pressing force of gravity and bending pressing mold, workpiece Can the trend of oriented bending place movement be even moved, pass through the effect of slide plate so that workpiece when bending, workpiece to The trend of bending place movement and it is mobile offset by being slided between slide plate and side plate, be slide plate all the time with workpiece remains stationary, ensure Workpiece can be provided enough supports and stiction by slide plate, and then ensure that the bending quality of workpiece;By spring B and The effect of limited block, slide plate can be made to terminate to automatically return to original position after bending in workpiece;By at the top of slide plate towards work The side edge of part fixed mount is globoidal structure, slide plate is further bonded with workpiece;, can not only by the effect of ball Ensure globoidal structure and slide plate face junction and the contact of workpiece at the top of slide plate, while also allow for the shifting of workpiece before the bend It is dynamic, consequently facilitating the completion of workpiece centering operation;By rib A and rib B, and compact heap effect, make accommodating tool with Returning face plate is positioned and fixed;By the effect of temperature signal collection device, the temperature at the workpiece heat face back side can be detected, So as to the workpiece temperature to be reached when ensureing that the temperature at workpiece heat position can reach bending, workpiece bending ensure that It is normally carried out, also ensure that the bending quality of workpiece.
The technical solution used in the present invention is:
Extra-high voltage iron tower with big specification angle steel high-frequency heating one side bender, including base, the base top surface it is front and rear Both ends are symmetrically fixed with workpiece rack, and the top of the workpiece rack is up and down to be connected with briquetting, the bottom of the briquetting Face is fixed with bending pressing mold, and for the bending pressing mold between workpiece rack, the briquetting provides driving force by piston A, The piston A is fixed on top plate, and the top plate is fixed by column and base;The base is respectively arranged on the left side and the right side high frequency Heater, the heating coil of the high frequency heating machine is parallel with the bending deformation plance of workpiece, and the shape that heating coil is surrounded Shape is identical with the bending deformed region shape of workpiece;The workpiece rack includes accommodating tool, and the accommodating tool is by turning over Pivoted frame swings with base and connected, and the rollover stand is fixed on base, and the accommodating tool includes the working base fixed with rollover stand, " Jiong " shaped frame is fixed with along the length direction of working base at the top side edge placement of the working base, the working base Top opposite side is fixed with workpiece holder, and the top surface of " Jiong " shaped frame is horizontal plane, and " Jiong " shaped frame is consolidated towards workpiece The side for determining frame is vertical plane, and the workpiece holder is parallel with the corresponding surface of " Jiong " shaped frame, the workpiece holder with The distance between " Jiong " shaped frame is more than or equal to the thickness of workpiece.
Further improvement project of the invention is trunnion axis of the accommodating tool towards one end of bending pressing mold around rollover stand Swing up or down, the trunnion axis is parallel with the place perpendicular for bending pressing mold;The rollover stand includes seat board, described The both sides of seat board are arranged with riser, and riser is fixed at the both ends of the trunnion axis, and accommodating tool passes through returning face plate and trunnion axis Connection is swung, preact power A, the pre- work are provided with provided with spring A, the spring A between one end of the returning face plate and seat board Firmly A drives one end of accommodating tool towards bending pressing mold to be swung up by returning face plate, and the top of the seat board is positioned at level Axle backwards to bend pressing mold side be provided with spacing mandril, when returning face plate spring A preact power A effect lower swing extremely with it is spacing When the top contact of push rod, returning face plate keep level, the working base is fixed with returning face plate.
Further improvement project of the invention is that the bottom of the returning face plate is provided with anticollision corresponding to spacing mandril opening position Pad.
Further improvement project of the invention is that the returning face plate is rotatablely connected by connecting plate and trunnion axis.
Further improvement project of the invention is that the trunnion axis and distance of the returning face plate towards one end of bending pressing mold are big In the distance with the one end of returning face plate away from bending pressing mold, spring A is located at positioned at spacing mandril backwards to the side for bending pressing mold, institute The preact power A for stating spring A is pretension.
Further improvement project of the invention is that the workpiece holder is provided with screwed hole, and the end of fishbolt is worn Screwed hole is crossed to be located between workpiece holder and " Jiong " shaped frame.
Further improvement project of the invention is that the fishbolt is fixed with setting stick backwards to one end of " Jiong " shaped frame.
Further improvement project of the invention is that the length direction of top edge " Jiong " shaped frame of " Jiong " shaped frame is slided Dynamic to be connected with slide plate, the slide plate is towards the side edge of workpiece holder and " Jiong " shaped frame towards the edge of workpiece holder Flush.
Further improvement project of the invention is that the bottom surface of the slide plate is provided with chute, the top surface of " Jiong " shaped frame Slide rail is fixed with, the chute matches connection with slide rail.
Further improvement project of the invention is that spring B, the spring B are provided between the slide plate and " Jiong " shaped frame Provided with preact power B, the preact power B drives slide plate to be moved to the direction away from bending pressing mold, and the bottom of the slide plate is set Limited location block, " Jiong " shaped frame top are provided with notch, sliding when limited block contacts with cell wall of the notch away from bending pressing mold side Plate face flushes to one end of bending pressing mold with " Jiong " shaped frame.
Further improvement project of the invention is that one end of the spring B is connected with connecting rod A, the other end and connecting rod B Connection, the connecting rod A are fixed on the bottom of " Jiong " shaped frame, and the bottom of the connecting rod B through notch and slide plate is fixed.
Further improvement project of the invention is, the notch located at the top of " Jiong " shaped frame, towards bending pressing mold One end, the preact power B of the spring B is pretension.
Further improvement project of the invention is, both sides edge at the top of the returning face plate and towards bending pressing mold side Edge be provided with rib B and rib A upwards respectively, the returning face plate is fixed with compression backwards to the edge of the side of bending pressing mold Block, the top of the compact heap are higher than the top surface of returning face plate, and by hold-down bolt by working base be fixed on rib A, rib B and In the range of compact heap surrounds.
Further improvement project of the invention is that the compact heap is fixed by fixing bolt and returning face plate.
Further improvement project of the invention is that the rib A, rib B overhead height are less than the bottom level of slide plate.
Further improvement project of the invention is that the edge of top towards the workpiece holder side of the slide plate is cambered surface Structure.
Further improvement project of the invention is that multiple rollings are distributed with the junction of the globoidal structure and slide plate top surface Pearl, the ball is rolled and is connected in slide plate, and is uniformly distributed along the length direction of slide plate.
Further improvement project of the invention is, the top of the base, in the symmetry axis of both sides workpiece rack Point opening position is provided with temperature signal collection device, and the temperature signal collection device is connected by piston B with base, and piston B is set In in the groove set by base, when piston B piston rod stretches out piston B to maximum stroke upwards, temperature signal collection fills Setting in workpiece lower section, close to workpiece heat opening position.
Further improvement project of the invention is, when piston B piston rod retracts downwards piston B to maximum stroke, Signal pickup assembly is located in groove.
Further improvement project of the invention is that the column is located at four vertex of base;The column passes through pressure Block, top plate and base fixed, the column is the lead of briquetting.
Further improvement project of the invention is that the hydraulic cylinder of the piston A is fixed on the top of top plate, piston A liquid Depression bar end extends downwardly from hydraulic cylinder and fixed through the top of top plate and briquetting.
Further improvement project of the invention is that the heating coil of the high frequency heating machine is fixed on the front end of expansion bracket, The expansion bracket is flexibly connected by leading screw with the chassis of high frequency heating machine, the expansion bracket by leading screw along towards or it is remote The direction activity of base.
Further improvement project of the invention is that the top of the high frequency heating machine is provided with centralising device, the centering dress It is set to light emitters, the light directive workpiece of the light emitters.
Further improvement project of the invention is, the light that the light emitters are sent is straight line, the straight line with it is curved The center line of crimping mould is in same perpendicular.
Further improvement project of the invention is that the bottom surface of the bending pressing mold is to be put down with the light that light emitters are sent Capable stripe-shape plane.
Further improvement project of the invention is that the signal pickup assembly is located at what centralising device transmitting light was formed In perpendicular.
Further improvement project of the invention is, the heating coil includes heating coil A and heating coil B ', it is described plus Hot coil A is located at workpiece holder side, and heating coil B ' is located remotely from the side of workpiece holder.
Further improvement project of the invention is that what the heating coil A was surrounded is shaped as symmetrical isosceles three Angular and parallel with vertical plane, for the drift angle of the isosceles triangle with being flushed at the top of workpiece, the bottom of base and workpiece is neat It is flat, and in the perpendicular where the light sent positioned at light emitters.
Further improvement project of the invention is that what the heating coil B ' was surrounded is shaped as wide with bending pressing mold bottom surface Spend equal strip rectangle, and and plane-parallel, the both ends of the strip rectangle both sides edge with slide plate respectively Flush.
The beneficial effects of the present invention are:
Firstth, extra-high voltage iron tower of the invention is with big specification angle steel high-frequency heating one side bender, by by high-frequency heating Machine and bending mechanism are combined together so that and it can immediately be bent without turnover after workpiece heat, avoid thermal loss, Energy consumption is reduced, while eliminates workpiece turnover, production efficiency is improved, it also avoid operative employee's quilt in workpiece circular flow The hidden danger of workpiece scald.
Secondth, extra-high voltage iron tower of the invention is with big specification angle steel high-frequency heating one side bender, by by heating coil It is arranged to the shape of workpiece bending deformed region, i.e., the bending deformed region of heated partses, is ensureing the effect of workpiece bending On the premise of, reduce the area of workpiece heat, it is possible to reduce the energy consumption needed for heated partses.
3rd, extra-high voltage iron tower of the invention is with big specification angle steel high-frequency heating one side bender, by by heating coil It is arranged to the shape of workpiece bending deformed region, i.e., the bending deformed region of heated partses, ensures that not heated region exists It will not be deformed upon during workpiece bending, so as to ensure the bending quality of workpiece, and the inferior rate of bending for reducing workpiece.
4th, extra-high voltage iron tower of the invention passes through centralising device with big specification angle steel high-frequency heating one side bender Effect, can carry out centering, so as to ensure that the bending quality of workpiece by workpiece.
5th, extra-high voltage iron tower of the invention is top plate with big specification angle steel high-frequency heating one side bender, column Support column, also it is the lead of briquetting, simplifies device structure, improve the utilization rate of column.
6th, extra-high voltage iron tower of the invention passes through the work of rollover stand with big specification angle steel high-frequency heating one side bender With alloing accommodating tool to be swung together with the both ends of workpiece when workpiece is complete, make the both ends of workpiece all the time with Accommodating tool keeps fitting, and enough supports and stiction are provided to workpiece, ensures that workpiece will not be to folding during bending Crook is moved, and ensure that the bending quality of product.
7th, extra-high voltage iron tower of the invention is with big specification angle steel high-frequency heating one side bender, by spring A and spacing The effect of push rod, returning face plate can be made to be flipped over automatically when not bending and be rocked to horizontality, done for next bending Prepare.
8th, extra-high voltage iron tower of the invention passes through the work of bumper with big specification angle steel high-frequency heating one side bender With reduction spacing mandril is to the percussion of accommodating tool, the service life of extension device.
9th, extra-high voltage iron tower of the invention is with big specification angle steel high-frequency heating one side bender, because workpiece is being bent During under the pressing force of gravity and bending pressing mold, workpiece can the movement of oriented bending place trend in addition be moved, Pass through the effect of slide plate so that workpiece is when bending, trend and move by slide plate and side plate that workpiece moves to bending place Between slide and offset, be slide plate all the time with workpiece remains stationary, ensure that workpiece can be provided enough supports and quiet by slide plate Frictional force, and then ensure that the bending quality of workpiece.
Tenth, extra-high voltage iron tower of the invention is with big specification angle steel high-frequency heating one side bender, by spring B and spacing The effect of block, slide plate can be made to terminate to automatically return to original position after bending in workpiece.
11st, extra-high voltage iron tower of the invention is passed through at the top of slide plate with big specification angle steel high-frequency heating one side bender It is globoidal structure towards the side edge of workpiece holder, slide plate is further bonded with workpiece.
12nd, extra-high voltage iron tower of the invention passes through the work of ball with big specification angle steel high-frequency heating one side bender With globoidal structure and slide plate face junction and the contact of workpiece at the top of slide plate can not only be ensured, while also allowed for workpiece and existed Movement before bending, consequently facilitating the completion of workpiece centering operation.
13rd, extra-high voltage iron tower of the invention passes through rib A and gear with big specification angle steel high-frequency heating one side bender Side B, and the effect of compact heap, make accommodating tool be positioned and fixed with returning face plate.
14th, extra-high voltage iron tower of the invention passes through temperature signal with big specification angle steel high-frequency heating one side bender The effect of harvester, the temperature at the workpiece heat face back side can be detected, so as to ensure that the temperature at workpiece heat position can The workpiece temperature to be reached when reaching bending, being normally carried out for workpiece bending is ensure that, also ensure that the bending quality of workpiece.
Brief description of the drawings
Fig. 1 is the structure schematic side view of the present invention at the high frequency heating machine front position of side.
Fig. 2 is structure of the main view of the present invention.
Fig. 3 is the diagrammatic side-view cross-sectional enlarged diagram of rack.
Fig. 4 is the main view enlarged diagram of rack.
Embodiment
With reference to shown in Fig. 1 ~ Fig. 4, the present invention includes base 1, and the rear and front end of the top surface of base 1 is symmetrically fixed with workpiece Rack 2, the top of the workpiece rack 2 is up and down to be connected with briquetting 3, and the bottom surface of the briquetting 3 is fixed with bending pressure Mould 6, the bending pressing mold 6 is between workpiece rack 2, and the briquetting 3 provides driving force by piston A, and the piston A consolidates Due to top plate 4, the top plate 4 is fixed by column 9 and base 1;The base 1 is respectively arranged on the left side and the right side high frequency heating machine 7, the heating coil of the high frequency heating machine 7 is parallel with the bending deformation plance of workpiece, and the shape that is surrounded of heating coil with The bending deformed region shape of workpiece is identical;The workpiece rack 2 includes accommodating tool, and the accommodating tool passes through rollover stand Swinging and connect with base 1, the rollover stand is fixed on base 1, and the accommodating tool includes the working base 18 fixed with rollover stand, At the top side edge placement of the working base 18 " Jiong " shaped frame 19, the work are fixed with along the length direction of working base 18 The top opposite side of dress seat 18 is fixed with workpiece holder 43, and the top surface of " Jiong " shaped frame is horizontal plane, " Jiong " shaped frame It is vertical plane towards the side of workpiece holder 43, the workpiece holder 43 is parallel with the corresponding surface of " Jiong " shaped frame 19, institute State the thickness that the distance between workpiece holder 43 and " Jiong " shaped frame 19 are more than or equal to workpiece.
One end of the accommodating tool towards bending pressing mold 6 is swung up or down around the trunnion axis 21 of rollover stand, described Trunnion axis 21 is parallel with the place perpendicular for bending pressing mold 6;The rollover stand includes seat board 16, the both sides pair of the seat board 16 Title is provided with riser 26, and riser 26 is fixed at the both ends of the trunnion axis 21, and accommodating tool is put by returning face plate 17 and trunnion axis 21 Dynamic connection, preact power A, institute are provided between one end of the returning face plate 17 and seat board 16 provided with spring A23, the spring A23 State preact power A drives one end of accommodating tool towards bending pressing mold 6 to be swung up by returning face plate 17, the top of the seat board 16 Portion is located at trunnion axis 21 and is provided with spacing mandril 24 backwards to the side for bending pressing mold 6, when returning face plate 17 is in spring A23 preact power When A acts on top contact of the lower swing extremely with spacing mandril 24, the keep level of returning face plate 17, the working base 18 is with overturning Plate 17 is fixed.
The bottom of the returning face plate 17 is provided with bumper 25 corresponding to the opening position of spacing mandril 24.
The returning face plate 17 is rotatablely connected by connecting plate 22 and trunnion axis 21.
The trunnion axis 21 is more than with returning face plate 17 away from bending with returning face plate 17 towards the distance of one end of bending pressing mold 6 The distance of one end of pressing mold 6, spring A23 are located at the side for bending pressing mold 6 backwards positioned at spacing mandril 24, the spring A23's Preact power A is pretension.
The workpiece holder 43 is provided with screwed hole, and the end of fishbolt 40 is located at workpiece holder through screwed hole Between 43 and " Jiong " shaped frame 19.
The fishbolt 40 is fixed with setting stick 41 backwards to one end of " Jiong " shaped frame 19.
The top of " Jiong " shaped frame 19 slidably connects slide plate 20, the cunning along the length direction of " Jiong " shaped frame 19 Plate 20 flushes towards the side edge of workpiece holder 43 with " Jiong " shaped frame 19 towards the edge of workpiece holder 43.
The bottom surface of the slide plate 20 is provided with chute, and the top surface of " Jiong " shaped frame 19 is fixed with slide rail 42, the chute Connection is matched with slide rail 42.
Spring B 30 is provided between slide plate 20 and " Jiong " shaped frame 19, the spring B 30 is described provided with preact power B Preact power B drives slide plate 20 to be moved to the direction away from bending pressing mold 6, and the bottom of the slide plate 20 is provided with limited block 33, The top of " Jiong " shaped frame 19 is provided with notch 29, sliding when limited block 33 contacts with cell wall of the notch 29 away from bending pressing mold 6 side One end of plate 20 towards bending pressing mold 6 flushes with " Jiong " shaped frame 19.
One end of the spring B 30 is connected with connecting rod A31, and the other end is connected with connecting rod B32, the connecting rod A31 The bottom of " Jiong " shaped frame 19 is fixed on, the bottom of the connecting rod B32 through notch 29 and slide plate 20 is fixed.
The notch 29 located at " Jiong " shaped frame 19 top, towards bending pressing mold 6 one end, the spring B 30 it is pre- Active force B is pretension.
Both sides edge at the top of the returning face plate 17 and the edge difference towards bending pressing mold 6 side are provided with rib upwards B36 and rib A27, the returning face plate 17 are fixed with compact heap 28, the compact heap 28 backwards to the edge for the side for bending pressing mold 6 Top be higher than the top surface of returning face plate 17, and working base 18 is fixed on by rib A27, rib B36 and pressure by hold-down bolt 35 In the range of tight block 28 is surrounded.
The compact heap 28 is fixed by fixing bolt 34 and returning face plate 17.
The rib A27, rib B36 overhead height are less than the bottom level of slide plate 20.
The edge of the top of the slide plate 20 towards the side of workpiece holder 43 is globoidal structure 37.
Multiple balls 38 are distributed with the junction of the globoidal structure 37 and the top surface of slide plate 20, and the ball 38 rolls connection In in slide plate 20, and it is uniformly distributed along the length direction of slide plate 20.
The top of the base 1, temperature signal collection is provided with the symmetry axis point midway of both sides workpiece rack 2 Device 15, the temperature signal collection device 15 are connected by piston B with base 1, and piston B is located in the groove set by base 1, When piston B piston rod stretches out piston B to maximum stroke upwards, temperature signal collection device 15 is located at below workpiece, leaned on Nearly workpiece heat opening position.
When piston B piston rod retracts downwards piston B to maximum stroke, signal pickup assembly 15 is located in groove.
The column 9 is located at four vertex of base 1;The column 9 is fixed through briquetting 3, by top plate 4 and base 1, The column 9 is the lead of briquetting 3.
The hydraulic cylinder 5 of the piston A is fixed on the top of top plate 4, and the piston A end of hydraulic stem 13 extends downwardly from hydraulic cylinder 5 and fixed through the top of top plate 4 and briquetting 3.
The heating coil of the high frequency heating machine 7 is fixed on the front end of expansion bracket 8, the expansion bracket 8 by leading screw 12 with The chassis 10 of high frequency heating machine 7 is flexibly connected, and the expansion bracket 8 is lived by leading screw 12 along the direction towards or away from base 1 It is dynamic.
The top of the high frequency heating machine 7 is provided with centralising device 14, and the centralising device 14 is light emitters, the light The light directive workpiece of line transmitter.
The light that the light emitters are sent is straight line, and the straight line is with bending the center line of pressing mold 6 same vertical In plane.
The bottom surface of the bending pressing mold 6 is the stripe-shape plane of the light ray parallel sent with light emitters.
The signal pickup assembly 15 is located at centralising device 14 and launched in the perpendicular that light is formed.
The heating coil includes heating coil A11 and heating coil B11 ', and the heating coil A11 fixes positioned at workpiece The side of frame 43, heating coil B11 ' are located remotely from the side of workpiece holder 43.
What the heating coil A11 was surrounded is shaped as symmetrical isosceles triangle, and parallel with vertical plane, institute The drift angle of isosceles triangle is stated with being flushed at the top of workpiece, base flushes with the bottom of workpiece, and is sent out positioned at light emitters In perpendicular where the light gone out.
What the heating coil B11 ' was surrounded is shaped as the strip rectangle equal with the bending bottom width of pressing mold 6, and And flushed respectively with the both sides edge of slide plate 20 with plane-parallel, the both ends of the strip rectangle.
When the present invention uses, first rule on angle steel workpiece to be bent for bending place, then by workpiece The side of line is placed on the top surface of slide plate 20 upward, workpiece opposite side be placed on workpiece holder 43 and " Jiong " shaped frame 19 it Between, centralising device 14 is opened, that is, opens light emitters, the light that the light emitters are sent projects workpiece surface, puts down The light that moving workpiece makes to project on workpiece overlaps with drawn line;Again by rotating setting stick 41, drive fishbolt 40 to The one end of " Jiong " shaped frame 19 is moved, and is bonded workpiece and the side wall of " Jiong " shaped frame 19, and now workpiece still is able to along " Jiong " font Fixed mount 19 moves horizontally.Then start high frequency heating machine 7, leading screw 12 drive heating coil 11 close to workpiece bending side, so Electrified regulation afterwards, heating coil 11 are heated by way of heat radiation to the bending part of workpiece;Piston rod drives simultaneously Temperature signal collection device 15 is moved upward to the back side of the heating surface of workpiece, and the temperature signal at workpiece heat position is adopted Collection;After the signal that temperature signal collection device 15 collects meets bending condition, piston rod is retracted in piston B, leading screw 12 Heating coil 11 is driven to retract backward;Hydraulic stem 13 drives bending pressing mold 6 to be pressed downward workpiece, and the both ends of workpiece are in bending pressing mold 6 In the presence of by stiction drive accommodating tool to be rotated around trunnion axis 21, while drive slide plate 20 to slide;When bending pressing mold 6 It is depressed into after specified altitude assignment, is retracted upwards in the presence of hydraulic stem 13, the workpiece after bending is taken out, accommodating tool and cunning Plate 20 automatically returns to original position under spring A23 and the active force of spring B 30 respectively, is easy to next workpiece to carry out curved Folding.

Claims (9)

1. extra-high voltage iron tower is with big specification angle steel high-frequency heating one side bender, it is characterised in that:Including base(1), the bottom Seat(1)The rear and front end of top surface is symmetrically fixed with workpiece rack(2), the workpiece rack(2)The up and down company in top It is connected to briquetting(3), the briquetting(3)Bottom surface be fixed with bending pressing mold(6), the bending pressing mold(6)Positioned at workpiece rack (2)Between, the briquetting(3)Driving force is provided by piston A, the piston A is fixed on top plate(4), the top plate(4)Pass through Column(9)With base(1)It is fixed;The base(1)Be respectively arranged on the left side and the right side high frequency heating machine(7), the high-frequency heating Machine(7)Heating coil it is parallel with the bending deformation plance of workpiece, and the bending of the shape that is surrounded of heating coil and workpiece becomes Shape region shape is identical;The workpiece rack(2)Including accommodating tool, the accommodating tool passes through rollover stand and base(1) Connection is swung, the rollover stand is fixed on base(1), the accommodating tool include with rollover stand fix working base(18), institute State working base(18)Top side edge placement at along working base(18)Length direction be fixed with " Jiong " shaped frame(19), institute State working base(18)Top opposite side be fixed with workpiece holder(43), the top surface of " Jiong " shaped frame is horizontal plane, " Jiong " shaped frame is towards workpiece holder(43)Side be vertical plane, the workpiece holder(43)With " Jiong " shaped frame(19) Corresponding surface it is parallel, the workpiece holder(43)With " Jiong " shaped frame(19)The distance between be more than or equal to workpiece thickness; The base(1)Top, positioned at both sides workpiece rack(2)Symmetry axis point midway at be provided with temperature signal collection device (15), the temperature signal collection device(15)Pass through piston B and base(1)Connection, piston B are located at base(1)Set is recessed In groove, when piston B piston rod stretches out piston B to maximum stroke upwards, temperature signal collection device(15)Positioned at workpiece Lower section, close workpiece heat opening position;When piston B piston rod retracts downwards piston B to maximum stroke, signal acquisition dress Put(15)In groove.
2. extra-high voltage iron tower as claimed in claim 1 is with big specification angle steel high-frequency heating one side bender, it is characterised in that:Institute Accommodating tool is stated towards bending pressing mold(6)One end around rollover stand trunnion axis(21)Swing up or down, the trunnion axis (21)With bending pressing mold(6)Place perpendicular it is parallel;The rollover stand includes seat board(16), the seat board(16)Both sides It is arranged with riser(26), the trunnion axis(21)Both ends be fixed on riser(26), accommodating tool passes through returning face plate(17)With Trunnion axis(21)Swing connection, the returning face plate(17)One end and seat board(16)Between be provided with spring A(23), the spring A (23)Provided with preact power A, the preact power A passes through returning face plate(17)Accommodating tool is driven towards bending pressing mold(6)One End is swung up, the seat board(16)Top be located at trunnion axis(21)Backwards to bending pressing mold(6)Side be provided with spacing mandril (24), work as returning face plate(17)In spring A(23)Preact power A effect lower swing to and spacing mandril(24)Top contact When, returning face plate(17)Keep level, the working base(18)With returning face plate(17)It is fixed.
3. extra-high voltage iron tower as claimed in claim 1 is with big specification angle steel high-frequency heating one side bender, it is characterised in that:Institute State workpiece holder(43)It is provided with screwed hole, fishbolt(40)End be located at workpiece holder through screwed hole(43)With " Jiong " shaped frame(19)Between.
4. extra-high voltage iron tower as claimed in claim 3 is with big specification angle steel high-frequency heating one side bender, it is characterised in that:Institute State " Jiong " shaped frame(19)Top along " Jiong " shaped frame(19)Length direction slidably connect slide plate(20), the slide plate (20)Towards workpiece holder(43)Side edge and " Jiong " shaped frame(19)Towards workpiece holder(43)Edge flush.
5. extra-high voltage iron tower as claimed in claim 4 is with big specification angle steel high-frequency heating one side bender, it is characterised in that:Institute State slide plate(20)With " Jiong " shaped frame(19)Between be provided with spring B(30), the spring B(30)It is described pre- provided with preact power B Active force B drives slide plate(20)To away from bending pressing mold(6)Direction movement, the slide plate(20)Bottom be provided with limited block (33), " Jiong " shaped frame(19)Top is provided with notch(29), work as limited block(33)With notch(29)Away from bending pressing mold(6)Side Cell wall contact when, slide plate(20)Towards bending pressing mold(6)One end and " Jiong " shaped frame(19)Flush.
6. extra-high voltage iron tower as claimed in claim 5 is with big specification angle steel high-frequency heating one side bender, it is characterised in that:Institute State slide plate(20)Top towards workpiece holder(43)The edge of side is globoidal structure(37);The globoidal structure(37)With Slide plate(20)Multiple balls are distributed with the junction of top surface(38), the ball(38)Rolling is connected to slide plate(20)It is interior, and Along slide plate(20)Length direction be uniformly distributed.
7. extra-high voltage iron tower as claimed in claim 1 is with big specification angle steel high-frequency heating one side bender, it is characterised in that:Institute State column(9)Located at base(1)Four vertex;The column(9)Through briquetting(3), by top plate(4)With base(1)Gu It is fixed, the column(9)For briquetting(3)Lead;The hydraulic cylinder of the piston A(5)It is fixed on top plate(4)Top, piston A Hydraulic stem(13)End extends downwardly from hydraulic cylinder(5)And pass through top plate(4)With briquetting(3)Top fix.
8. extra-high voltage iron tower as claimed in claim 1 is with big specification angle steel high-frequency heating one side bender, it is characterised in that:Institute State high frequency heating machine(7)Heating coil be fixed on expansion bracket(8)Front end, the expansion bracket(8)Pass through leading screw(12)With height Frequency heater(7)Chassis(10)It is flexibly connected, the expansion bracket(8)Pass through leading screw(12)Along towards or away from base(1) Direction activity.
9. extra-high voltage iron tower as claimed in claim 1 is with big specification angle steel high-frequency heating one side bender, it is characterised in that:Institute State high frequency heating machine(7)Top be provided with centralising device(14), the centralising device(14)For light emitters, the light hair The light directive workpiece of emitter;The light that the light emitters are sent is straight line, the straight line and bending pressing mold(6)Center Line is in same perpendicular.
CN201610299555.XA 2016-05-09 2016-05-09 Extra-high voltage iron tower is with big specification angle steel high-frequency heating one side bender Active CN105772549B (en)

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CN106216514B (en) * 2016-08-03 2018-07-10 吴江市金康电力器材有限公司 A kind of steel tower corner iron hyperbolic processing mold of adjustable-angle
CN114367563B (en) * 2021-12-27 2023-09-19 江苏翔宇电力装备制造有限公司 Automatic top folding machine for extra-high voltage iron tower connecting piece

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JP5392811B2 (en) * 2007-12-18 2014-01-22 日新製鋼株式会社 Method for manufacturing L-shaped structural member
CN202963137U (en) * 2012-09-18 2013-06-05 张加友 Multifunctional hot bending machine
CN104338812A (en) * 2013-07-30 2015-02-11 滕军 Steel angle opening-closing machine
CN204052486U (en) * 2014-09-12 2014-12-31 江苏翔宇电力装备制造有限公司 A kind of angle steel one side bending apparatus
CN204353329U (en) * 2014-12-17 2015-05-27 天津中际装备制造有限公司 Angle steel monolateral folding arc mold
CN204747158U (en) * 2015-06-03 2015-11-11 广州增立钢管结构股份有限公司 A curved device of angle steel single face system for in transmission line iron tower
CN205587478U (en) * 2016-05-09 2016-09-21 江苏翔宇电力装备制造有限公司 Extra -high voltage iron tower is with big specification angle steel high -frequency heating single face system bender

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Denomination of invention: High frequency heating single side bending machine for large-size angle steel for UHV iron tower

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