CN102922184B - Welding equipment - Google Patents
Welding equipment Download PDFInfo
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- CN102922184B CN102922184B CN201210458233.7A CN201210458233A CN102922184B CN 102922184 B CN102922184 B CN 102922184B CN 201210458233 A CN201210458233 A CN 201210458233A CN 102922184 B CN102922184 B CN 102922184B
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Abstract
The invention discloses a kind of welder, comprise induction heater and welding gun assembly, induction heater and welding gun assembly are set in turn in connecting elements along first direction, and the welding head executing hot junction and welding gun assembly of induction heater is arranged in the same way relative to connecting elements, first direction is that weld seam forms direction.The welder with weld preheating function provided by the invention, effectively reducing on the basis of working hour, effectively can control welding quality; Meanwhile, because preheating and welding are synchronously carried out, the stand-by period between eliminating preheating and welding, effectively can enhance productivity, there is higher capacity usage ratio.In addition, this programme adopts and utilizes the induction heater of electromagnetic induction principle, can not produce splashing in heating process, can the security incident such as burn, scald in cancel job process, guarantees the production safety of operating personnel, substantially improves operating environment.On this basis, present invention also offers a kind of welding equipment with this welder.
Description
Technical field
The present invention relates to technical field of welding equipment, be specifically related to a kind of welder and there is the welding equipment of this device.
Background technology
Along with developing rapidly of economic construction, the infrastructure scales such as road traffic, airport, harbour, water conservancy and hydropower, urban construction are also increasing, for the Long-term change trend of demand gradually in high capacity of all kinds engineering machinery.Except dynamical system, control system etc., the body bearing capacity of engineering machinery needs synchronous raising, and the welding quality of its primary load bearing structure part has become and adapts to one of important indicator that high capacity requires.
As everyone knows, the welding of important component and thicker part, all requires to carry out preheating before weldering, thus obtains higher welding quality.In prior art, weld preheating adopts the mode of artificial flame (generally using oxygen+propane as burning gases) preheating mostly, specifically refers to Fig. 1.When preheating is carried out to weldment, first pressure-reducing valve is opened, regulate oxygen and propane gas output, the hand-held grilled gun of operator, and then open grilled gun switch and light burning gases, utilize the flame producing high temperature to heat preheated zone.
But, when the mode adopting flame to heat carries out weld preheating to weldment, comparatively large by operative's behavioral implications, there is some deficiency following:
(1) weldment quality is unstable.Manually-operated randomness is comparatively strong, make weldment preheating width, heating translational speed non-constant, also there is temperature contrast in the region of successively heating simultaneously, cause postwelding joint distortion and stress distribution uneven.
(2) less economical.When preheating is carried out to large-sized structural parts, due to the existence of the phenomenons such as heat transfer, heat radiation, convection current, cause most of heat losses; And the workpiece after heating follows up not in time due to welding and heat also can be made to produce loss, and capacity usage ratio is lower, less economical.
(3) higher to manual operation skill requirement, inefficiency.
(4) poor working environment.The splash produced in heating process easily scalds operator.
In view of this, urgently looking for another way is optimized design for weld preheating technology, to overcome the above-mentioned defect that flame mode of heating exists.
Summary of the invention
For above-mentioned defect, the technical problem that the present invention solves is, provides a kind of welder with weld preheating function, can evade the above-mentioned deficiency existing for flame mode of heating completely.On this basis, present invention also offers a kind of welding equipment with this welder.
Welder provided by the invention, comprise induction heater and welding gun assembly, described induction heater and welding gun assembly are set in turn in connecting elements along first direction, and the welding head executing hot junction and described welding gun assembly of described induction heater is arranged in the same way relative to described connecting elements, described first direction is that weld seam forms direction.
Preferably, described induction heater has guard member, described guard member is provided with at least two group induction coils.
Preferably, described guard member is fixedly installed the lug boss corresponding with often organizing induction coil, described induction coil is surrounded on the root of corresponding described lug boss.
Preferably, described guard member is specially tabular, and described lug boss is the strip arranged along first direction.
Preferably, described guard member is specially bending-like, and described lug boss is the strip arranged along first direction, and is separately positioned on two plate faces of bending-like guard member.
Preferably, described guard member adopts glass fibre or heat-stable ceramic to make.
Welding equipment provided by the invention, comprises foregoing welder, and drives chassis and transverse arm; Wherein, described driving chassis can along first direction displacement, and described transverse arm to be arranged on described driving chassis and outside second direction, to stretch in described driving chassis; And described welder is arranged at the overhanging end of described transverse arm, described second direction is vertical with described first direction.
Preferably, described transverse arm can adjust relative position relative to described driving chassis along second direction and third direction respectively, and described third direction is all vertical with second direction with described first direction.
Preferably, described welding gun assembly can adjust relative position relative to connecting elements along second direction and third direction respectively, and described induction heater can adjust relative position relative to connecting elements along second direction and third direction respectively.
Preferably, also comprise two closed slides be fixedly installed, driving wheel and the described closed slide of described driving chassis are equipped with.
Preferably, described driving chassis is also provided with the source of welding current supplying power to described weld assembly, and supplies power to the medium frequency induction power supply of described induction heater.
Preferably, also comprise the control system be arranged on described driving chassis, described control system comprises welding module, warm-up block and chassis driver module.
Preferably, described warm-up block controls according to component thickness to be welded, material property and speed of welding the electric current that the described source of welding current exports described induction heater to.
Welder provided by the invention has the front heating function of weldering concurrently, its induction heater and welding gun assembly are set in turn in connecting elements along first direction (fore-and-aft direction that weld seam is formed), that is, relative to the direction that weld seam is formed, this programme is provided with induction heater in the front side of welding gun assembly, is heated the weld interface of workpiece and the workpiece portion of near interface by induction heater; Meanwhile, the welding head executing hot junction and welding gun assembly of induction heater is arranged in the same way relative to connecting elements, and making to execute hot junction all can be relative with component to be welded with welding head.Setting like this, at welding sequence, induction heater advances with identical speed with welding gun assembly, preheating and welding are synchronously carried out, an operator just can complete preheating and welding simultaneously, effectively reducing on the basis of working hour, effectively can control welding quality; Meanwhile, because preheating and welding are synchronously carried out, the stand-by period between eliminating preheating and welding, effectively can enhance productivity, there is higher capacity usage ratio.In addition, this programme adopts and utilizes the induction heater of electromagnetic induction principle, can not produce splashing in heating process, can the security incident such as burn, scald in cancel job process, guarantees the production safety of operating personnel, substantially improves operating environment.
In preferred version of the present invention, the guard member of its induction heater for being applicable to the tabular of butt weld, also can be applicable to angle welding for bending-like; Setting like this, can make the coil of induction heater adapt to the shape of component to be welded further, effectively improve capacity usage ratio, improve pre-heat effect simultaneously, provides reliable guarantee for reliably improving welding quality.
The driving chassis of welding equipment of the present invention can along first direction displacement, automatically to realize Synchronous Pre thermal weld; In addition, its transverse arm can also adjust relative position relative to driving chassis along second direction (left and right directions) and third direction (above-below direction); Setting like this, the working depth of adjustable transverse arm and overhang, implement effectively welding to different size workpiece and welding position.
In another preferred version, warm-up block controls according to component thickness to be welded, material property and speed of welding the electric current that the source of welding current exports induction heater to, effectively can meet the preheating requirement reducing weld defect.
Accompanying drawing explanation
Fig. 1 is the working state schematic representation of existing artificial flame mode of heating;
Fig. 2 is that described in detailed description of the invention, the axle of welding equipment measures intention;
Fig. 3 is the A direction view of Fig. 2;
Fig. 4 is the B direction view of Fig. 2;
Fig. 5 is I enlarged diagram of welder shown in Fig. 3;
Fig. 6 is the overall structure schematic diagram of induction heater shown in the first embodiment;
Fig. 7 is the principle schematic of the using state of induction heater shown in Fig. 6;
Fig. 8 is the overall structure schematic diagram of induction heater shown in the second embodiment;
Fig. 9 is the principle schematic of the using state of induction heater shown in Fig. 8.
In Fig. 2 to Fig. 9:
Drive chassis 10, closed slide 11, welder 20, induction heater 21, execute hot junction 21a,
Guard member 211', lug boss 2111', guard member 211 ", lug boss 2111 ",
Induction coil 212, attached seat 213, welding gun assembly 22, welding head 22a, connecting elements 23, transverse arm 30, component to be welded 40, switch board 50.
Detailed description of the invention
Core of the present invention is to provide and a kind ofly has the welder of heating function before weldering concurrently, eliminates preheating and stand-by period between welding, is heated by induction heater to the weld interface of workpiece and the workpiece portion of near interface; Meanwhile, the welding equipment applying this welder can realize preheated weld operation automatically.Be described in detail below in conjunction with Figure of description.
Refer to Fig. 2, Fig. 3 and Fig. 4, wherein, Fig. 2 is that described in present embodiment, the axle of welding equipment measures intention, and Fig. 3 is the A direction view of Fig. 2, and Fig. 4 is the B direction view of Fig. 2.
As shown in the figure, this welding equipment comprises can along the driving chassis 10 of first direction X displacement, first direction X and weld seam form direction, drive chassis 10 along first direction X displacement at a predetermined velocity, can form set weld seam after its welder welding completes on component to be welded.
Wherein, welder 20 is connected with driving chassis 10 by transverse arm 30.Particularly, this transverse arm 30 stretches in drive table car 10 outside second direction Y, so that the welder 20 being arranged on this transverse arm 30 overhanging end carries out welding.In drive table car displacement plane, second direction Y is vertical with first direction X.For describing the concrete structure of this programme welder 20 in detail, please also refer to Fig. 5, this figure is I enlarged diagram of welder shown in Fig. 3.
In this programme, this welder 20 comprises induction heater 21 and welding gun assembly 22, and induction heater 21 and welding gun assembly 22 are set in turn in connecting elements 23 along first direction X, and by the overhanging end of connecting elements 23 with transverse arm 30; And the welding head 22a executing hot junction 21a and welding gun assembly 22 of induction heater 21 is arranged in the same way relative to this connecting elements 23.Wherein, welding gun assembly 22 can adopt existing techniques in realizing, therefore repeats no more herein.
It should be noted that, connecting elements 23 specifically can adopt different version to realize, and connects induction heater 21 and welding gun assembly 22 as long as meet, and to set up between welder 20 with transverse arm 30 reliable is connected in the scope all protected in the application's request.
Particularly, this induction heater 21 has guard member, and guard member is provided with at least two group induction coils 212, heats with effective weld seam for member bodies to be welded and weld seam two side areas.Be described in detail with two embodiments below.
Refer to Fig. 6 and Fig. 7, wherein, Fig. 6 is the overall structure schematic diagram of induction heater shown in the first embodiment, and Fig. 7 is the principle schematic of the using state of induction heater shown in Fig. 6.
As shown in Figure 6 and Figure 7, guard member 211' is fixedly installed the lug boss 2111' corresponding with often organizing induction coil 212, induction coil 212 is surrounded on the root of corresponding lug boss 2111', to press close to component 40 to be welded.In this programme, guard member 211' is specially bending-like, and to adapt to the welding of angle welding, lug boss 2111' is the strip arranged along first direction X, and is separately positioned on two plate faces of bending-like guard member 211'.In addition, as shown in Figure 6, the openend of bending-like guard member 211' can be provided with hush panel, to arrange the attached seat 213 being used for being connected with connecting elements 23.
In fact, the concrete quantity of induction coil 212 can be selected according to component material, thickness, groove type and weld size, but not being confined to two shown in figure, during concrete heating, each induction coil 212 lays respectively at the both sides of weld seam, carries out homogeneous heating to workpiece.In addition, guard member 211' can adopt glass fibre or heat-stable ceramic to make, as long as can meet the requirement of electromagnetic induction heating.
Special instruction, the angle that this bending-like guard member 211' two plate faces are formed also is not limited to 90 shown in figure degree, obviously, carries out designing according to the difference of the actual angle of two components to be welded.
Setting like this, along with driving advancing of chassis 10, induction heater 21 and welding gun assembly 22 are relative to the synchronized displacement of component to be welded.Obviously, because preheating and welding are synchronously carried out, the stand-by period between eliminating preheating and welding, effectively can enhance productivity, there is higher capacity usage ratio.In addition, this programme adopts the induction heater utilizing electromagnetic induction principle, can not produce splashing in heating process.
Induction heater shown in above-described embodiment is applicable to the welder of angle welding, and next, shown in the second embodiment, induction heater is applicable to the welding of butt weld.Specifically please also refer to Fig. 8 and Fig. 9, wherein, Fig. 8 is the overall structure schematic diagram of induction heater shown in the second embodiment, and Fig. 9 is the principle schematic of the using state of induction heater shown in Fig. 8.
This programme and the essential distinction of the first embodiment are that the shape of guard member is different.As shown in the figure, guard member 211 " is specially tabular, the lug boss 2111 on it " and is similarly the strip arranged along first direction, is surrounded on respective bump portion 2111 " on two induction coils 212 lay respectively at the both sides of weld seam.In like manner, shown in figure, two induction coils 212 are only exemplary illustration, and its concrete quantity can set according to actual condition.
During actual heating, certain distance d is left on the surface of guard member and component to be welded 40, in order to better adapt to different workpiece.Preferably, transverse arm 30 can adjust relative position relative to driving chassis 10 along second direction Y and third direction Z respectively, wherein, third direction Z is all vertical with second direction Y with first direction X, thus, can adjust according to the appearance and size of difference component to be welded, to meet the needs of the front heating of weldering.
In addition, for promoting the degree of regulation of this welding equipment further, its welding gun assembly 22 can adjust relative position relative to connecting elements 23 along second direction Y and third direction Z respectively, and its induction heater 21 also can adjust relative position relative to connecting elements 23 along second direction Y and third direction Z respectively.That is, on the basis of transverse arm 30 coarse regulation, carry out accurate adjustment by welding gun assembly 22 and induction heater 21 whole.
Preferably, based on drive welder 20 along the driving chassis 10 of first direction displacement, two closed slides 11 be fixedly installed can be set up, correspondingly, drive the driving wheel of chassis 10 and closed slide 11 to be equipped with.Setting like this, as long as ensure that closed slide 11 is fixedly installed, can guarantee the even running driving chassis 10, thus greatly reduce the environmental requirement for welding shop.
In addition, drive on chassis 10 and be also provided with the source of welding current supplying power to weld assembly 22, and supply power to the medium frequency induction power supply of induction heater 21, by setting medium frequency induction power supply AC current values, component to be welded is given electrical energy transfer by the induction coil 212 of induction heater 21, and then electric energy is converted into heat energy at inside workpiece again, thus workpiece reaches required preheat temperature.Certainly, can regulate induction power supply electric current according to different welding procedures, make workpiece weld seam front temperature reach preheating requirement.
Particularly, drive on chassis 10 and switch board 50 can be set, with an integrated PLC control system.This control system comprises welding module, warm-up block and chassis driver module so that preheating with weld synchronizing process and form rational logical order; Certainly, these systemic-functions are programmed on the control panel of switch board 50, by regulating the position of transverse arm 30, induction heater 21 and welding gun assembly 22, welding is implemented to different size workpiece and welding position, and based on factor determination induction heating currents such as thickness of workpiece, material property, speeds of welding, by induction heater, the weld interface of workpiece and the workpiece portion of near interface are heated, reach the preheating requirement reducing weld defect.Drive chassis to move with the speed of welding direction along ng a path of setting, complete the welding of whole piece weld seam.
To sum up, compared with existing welding preheating method, the present invention has the following advantages:
(1) induction heater and welding gun assembly are fixed on driving chassis transverse arm with front and back position relationship by this programme, when driving chassis to advance along guide rail with speed of welding, induction heater advances with identical speed with welding gun assembly, preheating and welding are synchronously carried out, realize the automation of welding preheating procedure, an operator just can complete preheating and welding simultaneously, thus can reduce working hour, greatly reduces production cost.
(2) preheating and welding are synchronously carried out by this programme, the stand-by period between eliminating preheating and welding, can effectively enhance productivity.
(3) in welding process, heater remains consistent with welding gun assembly distance, heating-up temperature and heating region uniform and stable, reduce welding deformation and welding stress, effectively can improve welding quality.
(4) this programme adopts induction heater to carry out eddy-current heating to weldment, because eddy-current heating is that steel are subject to electromagnetic induction and produce induced-current and self-heating, do not need heat transfer, without the need to reserved too much loses heat, and the synchronous follow-up of welding, preheating is short with the time between welding, and heat loss is few, and capacity usage ratio is high.
(5) this programme adopts induction heater to carry out eddy-current heating to weldment, can not produce splashing, can the security incident such as burn, scald in cancel job process, guarantees the production safety of operating personnel, improves operating environment; Can regulate induction heating current simultaneously, control heating-up temperature, meet the requirement of different welding procedure.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (12)
1. a welding equipment, comprise welder, it is characterized in that, described welder comprises induction heater and welding gun assembly, described induction heater and welding gun assembly are set in turn in connecting elements along first direction, and the welding head executing hot junction and described welding gun assembly of described induction heater is arranged in the same way relative to described connecting elements, described first direction is that weld seam forms direction;
Described induction heater has guard member, described guard member is provided with at least two group induction coils;
Described guard member is fixedly installed the lug boss corresponding with often organizing induction coil, described induction coil is surrounded on the root of corresponding described lug boss;
Also comprise with lower component:
Drive chassis, can along first direction displacement; With
Transverse arm, to be arranged on described driving chassis and outside second direction, to stretch in described driving chassis; And
Described welder is arranged at the overhanging end of described transverse arm, and described second direction is vertical with described first direction.
2. welding equipment according to claim 1, is characterized in that, described guard member is specially tabular, and described lug boss is the strip arranged along first direction.
3. welding equipment according to claim 1, is characterized in that, described guard member is specially bending-like, and described lug boss is the strip arranged along first direction, and is separately positioned on two plate faces of bending-like guard member.
4. welding equipment according to claim 1, is characterized in that, described guard member adopts glass fibre or heat-stable ceramic to make.
5. the welding equipment according to any one of Claims 1-4, is characterized in that, described transverse arm can adjust relative position relative to described driving chassis along second direction and third direction respectively, and described third direction is all vertical with second direction with described first direction.
6. welding equipment according to claim 5, it is characterized in that, described welding gun assembly can adjust relative position relative to connecting elements along second direction and third direction respectively, and described induction heater can adjust relative position relative to connecting elements along second direction and third direction respectively.
7. welding equipment according to any one of claim 1 to 4, is characterized in that, also comprises two closed slides be fixedly installed, and driving wheel and the described closed slide of described driving chassis are equipped with.
8. welding equipment according to claim 7, is characterized in that, described driving chassis is also provided with the source of welding current supplying power to described weld assembly, and supplies power to the medium frequency induction power supply of described induction heater.
9. welding equipment according to claim 8, is characterized in that, also comprises the control system be arranged on described driving chassis, and described control system comprises welding module, warm-up block and chassis driver module.
10. welding equipment according to claim 9, is characterized in that, described warm-up block controls according to component thickness to be welded, material property and speed of welding the electric current that the described source of welding current exports described induction heater to.
11. welding equipments according to claim 5, is characterized in that, also comprise two closed slides be fixedly installed, and driving wheel and the described closed slide of described driving chassis are equipped with.
12. welding equipments according to claim 6, is characterized in that, also comprise two closed slides be fixedly installed, and driving wheel and the described closed slide of described driving chassis are equipped with.
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| CN201210458233.7A CN102922184B (en) | 2012-11-14 | 2012-11-14 | Welding equipment |
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| CN201210458233.7A CN102922184B (en) | 2012-11-14 | 2012-11-14 | Welding equipment |
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| CN102922184A CN102922184A (en) | 2013-02-13 |
| CN102922184B true CN102922184B (en) | 2016-02-24 |
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| CN103447741B (en) * | 2013-07-23 | 2016-04-06 | 南京工业大学 | One wards off splicer's skill preheating device |
| CN106002005A (en) * | 2016-05-26 | 2016-10-12 | 芜湖中铁科吉富轨道有限公司 | Semi-automatic preheating tool for processing steel rail |
| CN106216829B (en) * | 2016-07-22 | 2018-09-07 | 广东工业大学 | A kind of welder and method preventing Welding Angular Deformation |
| CN106602381A (en) * | 2016-12-01 | 2017-04-26 | 中国北方车辆研究所 | Electric connector contact body thermal protection device and welding process |
| CN109243805A (en) * | 2018-10-22 | 2019-01-18 | 江苏盛久变压器有限公司 | A kind of transformer coil docking facilities |
| CN115446416A (en) * | 2022-09-16 | 2022-12-09 | 广州文船重工有限公司 | Welding seam annealing device |
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