Weld joint preheating device

Abstract

The utility model provides a weld joint preheating device, which belongs to the technical field of steel structure processing and comprises a wing plate heating device and a web plate heating device. The wing plate heating device comprises a vertical lifting platform arranged below a wing plate of the profile steel assembly and a wing plate heating module arranged on the top surface of the vertical lifting platform; the web heating device comprises a vertical telescopic mechanism arranged on the web plate face side of the profile steel assembly, a guide rail arranged on the top face of the vertical telescopic mechanism, an electric control horizontal moving mechanism arranged on the guide rail in a sliding mode and a web heating module arranged on the end face, facing the profile steel assembly, of the electric control horizontal moving mechanism. The preheating device can solve the problems that in the prior art, before an H-shaped or T-shaped steel component enters an automatic production line for welding the welding seam, the welding seam of the component needs to be preheated manually, the automation degree is poor, the preheating efficiency is low, and the production rhythm of the automatic production line is affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel structure processing technical field more specifically relates to a weld preheating device. BACKGROUND

[0002] For the H type or T type steel member under the condition of larger thickness, higher material quality and lower environmental temperature, the preheating treatment before welding is needed according to the specification.

[0003] At present, the existing assembly welding and straightening integrated machine does not have a corresponding preheating device, and in general, the flame heating or electrode heating is carried out manually before welding, but both need manual operation, so the degree of automation is poor, the preheating efficiency is low, and personnel need to enter the workshop, which affects the production rhythm of the automatic production line. UTILITARY MODEL

[0004] In view of the above problems, the utility model aims at providing a weld preheating device to solve the problems in the prior art that the H type or T type steel member needs to be heated by manual flame or electrode before entering the automatic production line for welding, and the problems of poor automation degree, low preheating efficiency and influence on the production rhythm of the automatic production line.

[0005] The weld preheating device provided by the utility model is used for the weld preheating of the H type steel or T type steel before entering the welding production line, and comprises a wing plate heating device and a web plate heating device.

[0006] The wing plate heating device comprises a vertical lifting platform arranged below the wing plate of the steel assembly to be sent into the welding production line and a wing plate heating module arranged on the top surface of the vertical lifting platform.

[0007] The web plate heating device comprises a vertical telescopic mechanism arranged on the side of the web plate surface of the steel assembly to be sent into the welding production line, a guide rail arranged on the top surface of the vertical telescopic mechanism, an electric control horizontal moving mechanism slidingly arranged on the guide rail and a web plate heating module arranged on the end surface of the electric control horizontal moving mechanism towards the steel assembly.

[0008] Furthermore, preferably, the vertical lifting platform comprises a base, a top platform and a scissor lifting mechanism; first long holes are arranged on the top of the two opposite side walls of the base; second long holes are arranged on the bottom of the two opposite side walls of the top platform; the first long holes and the second long holes are opposite in position; a first lower horizontal rod and a first upper horizontal rod are arranged at the lower end and the upper end of one side of the scissor lifting mechanism; a second lower horizontal rod and a second upper horizontal rod are arranged at the lower end and the upper end of the other side of the scissor lifting mechanism; the two ends of the first lower horizontal rod are fixed on the top of the two opposite side walls of the base; the two ends of the first upper horizontal rod are fixed on the bottom of the two opposite side walls of the top platform; the two ends of the second lower horizontal rod are arranged in the two first long holes; the two ends of the second upper horizontal rod are arranged in the two second long holes; a first screw rod is arranged between the first lower horizontal rod and the second lower horizontal rod; a first electric control rotary output mechanism is connected to one end of the first screw rod.

[0009] Furthermore, preferably, the first electric control rotary output mechanism is a motor.

[0010] Furthermore, preferably, the middle part of the wing plate heating module corresponds to the middle part of the wing plate of the section steel assembly.

[0011] Furthermore, preferably, the wing plate heating module is an electromagnetic induction heating module; and / or the web plate heating module is an electromagnetic induction heating module.

[0012] Furthermore, preferably, the electromagnetic induction heating module is a coil disc.

[0013] Furthermore, preferably, the vertical telescopic mechanism comprises a primary shaft body, a secondary shaft body sleeved on the inner side of the upper part of the primary shaft body and an electric lifting control mechanism arranged at the lower end of the secondary shaft body and the inner side bottom of the primary shaft body; first racks are arranged on the two opposite inner side walls of the primary shaft body in vertical opposition; first gears matched with the first racks are arranged on the two opposite outer side walls of the secondary shaft body.

[0014] Furthermore, preferably, the electric lifting control mechanism comprises a motor arranged at the inner side bottom of the primary shaft body and a second screw rod connected to the output end of the motor; the bottom end of the secondary shaft body and the nut of the second screw rod are connected through a connecting rod.

[0015] In addition, preferably, the electric control horizontal moving mechanism comprises a horizontally arranged strip-shaped frame, a second gear rack arranged on the inner side walls of the strip-shaped frame, a second gear wheel horizontally arranged inside the strip-shaped frame and matched with the second gear rack, and a second electric control rotating output mechanism connected with the second gear wheel; the bottom of the second electric control rotating output mechanism is fixed on the top surface of the vertical telescopic mechanism, and a sliding groove is arranged at the bottom end of the strip-shaped frame; the strip-shaped frame is arranged on the guide rail through the sliding groove.

[0016] In addition, preferably, the second electric control rotating output mechanism is a motor.

[0017] From the above technical solutions, the welding seam preheating device provided by the utility model, through the structural design of the wing plate heating device and the web plate heating device, if the section steel assembly has a preheating requirement before the H-shaped steel or T-shaped steel enters the welding production line, the height of the vertical lifting platform is adjusted, the wing plate heating module is attached to the bottom surface of the wing plate of the H-shaped or T-shaped section steel assembly, and the wing plate is automatically preheated; the height of the web plate heating device is adjusted through the vertical telescopic mechanism, and the electric control horizontal moving mechanism is adjusted on the horizontal position of the top surface of the vertical telescopic mechanism through the electric control and the sliding rail, so that the web plate heating module is attached to the position of the web plate of the section steel assembly close to the web plate and the wing plate welding seam, and the web plate is automatically heated; the blank of automatic welding preheating on the H-shaped steel or T-shaped steel intelligent production line is filled; the utility model can be synchronously moved with the automatic welding machine, manual work is saved, and automatic and efficient preheating is realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] Other purposes and results of the utility model will be more apparent and easy to understand through the following description in combination with the drawings and with a more comprehensive understanding of the utility model.

[0019] Figure 1 FIG. 1 is a structural schematic view of a welding seam preheating device according to an embodiment of the utility model;

[0020] Figure 2 FIG. 2 is a structural schematic view of a wing plate heating device according to an embodiment of the utility model;

[0021] Figure 3 FIG. 3 is a structural schematic view of a web plate heating device according to an embodiment of the utility model;

[0022] Figure 4 FIG. 4 is a schematic view of the working state of the welding seam preheating device according to an embodiment of the utility model.

[0023] In the drawings, 11 - vertical lifting platform, 111 - base, 1111 - first long hole, 112 - top platform, 1121 - second long hole, 113 - scissor lifting mechanism, 1131 - first lower horizontal rod, 1132 - first upper horizontal rod, 1133 - second lower horizontal rod, 1134 - second upper horizontal rod, 114 - first screw rod, 115 - first electric control rotary output mechanism, 12 - wing plate heating module, 21 - vertical telescopic mechanism, 211 - first stage shaft body, 2111 - first rack, 212 - second stage shaft body, 2121 - first gear, 2131 - motor, 2132 - second screw rod, 21321 - nut, 2133 - connecting rod, 22 - guide rail, 23 - electric control horizontal moving mechanism, 231 - strip-shaped frame, 2311 - sliding groove, 232 - second rack, 233 - second gear, 234 - second electric control rotary output mechanism, 24 - web plate heating module, 3 - section steel assembly, 31 - wing plate, 32 - web plate.

[0024] The same reference numbers in all the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0025] In view of the foregoing, in the prior art, before the H-shaped or T-shaped steel member enters the automatic production line for welding of the weld, the weld of the member needs to be heated by a person using a flame or an electrode, and there are problems such as poor automation, low preheating efficiency, and influence on the production rhythm of the automatic production line, and a weld preheating device is provided.

[0026] The specific embodiments of the present application will be described in detail below with reference to the drawings.

[0027] In order to illustrate the weld preheating device provided by the present application, Figure 1 The structure of the weld preheating device according to the embodiment of the present application is shown. Figure 2 The structure of the wing plate heating device according to the embodiment of the present application is shown. Figure 3 The structure of the web plate heating device according to the embodiment of the present application is shown. Figure 4 The structure of the working state of the weld preheating device according to the embodiment of the present application is shown.

[0028] At present, when H-shaped steel or T-shaped steel is processed and produced, the wing plates and the web of the H-shaped steel or the T-shaped steel are temporarily combined and fixed to obtain a steel assembly, and then the steel assembly is sent into an automatic welding production line to weld the wing plates and the web. For H-shaped or T-shaped steel components with large plate thickness, high material quality and low ambient temperature, preheating treatment before welding is required. The current weld preheating method is to preheat the weld of the steel assembly by manual flame heating or motor heating, which has low efficiency, low automation degree and certain influence on the operation of the automatic production line when the workers enter the automatic production line. Therefore, the utility model provides a weld preheating device for H-shaped steel or T-shaped steel before entering the welding production line, which fills the blank of automatic welding preheating on the H-shaped steel or T-shaped intelligent production line.

[0029] As Figures 1 to 4 The utility model provides a weld preheating device for H-shaped steel or T-shaped steel before entering the welding production line, which fills the blank of automatic welding preheating on the H-shaped steel or T-shaped intelligent production line.

[0030] It should be noted that for H-shaped steel, it includes two upper and lower wing plates, and the weld position between the lower wing plate and the web is preheated before entering the first welding automatic production line. Before entering the second welding automatic production line, the automatic control device of the existing automatic production line will overturn the H-shaped steel, so that the upper wing plate is located at the lower part. Before welding, the lower wing plate and the web are preheated again by the weld preheating device provided by the utility model.

[0031] Through the structural design of the wing plate heating device and the web plate heating device, if the steel assembly has a preheating requirement before the H-shaped steel or the T-shaped steel enters a welding production line, the height of the vertical lifting platform 11 is adjusted, the wing plate heating module 12 is attached to the bottom surface of the wing plate 31 of the H-shaped or T-shaped steel assembly 3, and the wing plate 31 is automatically preheated; the height of the web plate heating device is adjusted through the vertical telescopic mechanism 21, the horizontal position of the top surface of the vertical telescopic mechanism 21 is adjusted through the electric control horizontal moving mechanism 23, the web plate heating module 24 is attached to the web plate 32 of the steel assembly 3 close to the position of the weld between the web plate 32 and the wing plate 31, and the web plate 32 is automatically heated; the blank of automatic welding preheating on the H-shaped steel or the T-shaped steel intelligent production line is filled; the vertical lifting platform 11 can move synchronously with the automatic welding machine, manual work is saved, and automatic and efficient preheating is realized.

[0032] As a preferred scheme of the utility model, the vertical lifting platform 11 comprises a base 111, a top platform 112 and a scissor lifting mechanism 113; wherein first long holes 1111 are correspondingly arranged on the top two opposite side walls of the base 111; second long holes 1121 are correspondingly arranged on the bottom two opposite side walls of the top platform 112; the positions of the first long holes 1111 and the second long holes 1121 are opposite; a first lower horizontal rod 1131 and a first upper horizontal rod 1132 are arranged at the lower end and the upper end of one side of the scissor lifting mechanism 113 respectively; a second lower horizontal rod 1133 and a second upper horizontal rod 1134 are arranged at the lower end and the upper end of the other side of the scissor lifting mechanism 113 respectively; the two ends of the first lower horizontal rod 1131 are fixed on the top two opposite side walls of the base 111 respectively; the two ends of the first upper horizontal rod 1132 are fixed on the bottom two opposite side walls of the top platform 112 respectively; the two ends of the second lower horizontal rod 1133 are arranged in the two first long holes 1111 respectively; the two ends of the second upper horizontal rod 1134 are arranged in the two second long holes 1121 respectively; a first screw rod 114 is arranged between the first lower horizontal rod 1131 and the second lower horizontal rod 1133; a first electric control rotary output mechanism 115 is connected to one end of the first screw rod 114.

[0033] The first electric control rotary output mechanism 115 drives the first screw rod 114 to rotate, the rotation of the first screw rod 114 drives the scissor lifting mechanism 113 to ascend, the wing plate heating module 12 is close to the lower wing plate surface of the steel assembly 3, and the wing plate heating module 12 is opened to heat the wing plate 31.

[0034] It should be noted that the above-mentioned vertical lifting platform 11 is a preferred structure of the utility model, and of course other electric control or gas control or hydraulic control lifting platforms can be used instead, and the utility model does not make special limitations on this, as long as automatic vertical lifting can be realized.

[0035] As a preferred scheme of the utility model, the first electric control rotary output mechanism 115 is a motor.

[0036] It should be noted that: the first electric control rotary output mechanism 115 is preferably but not limited to a motor, and can also be other controllable rotary output devices, and the utility model does not make special limitation to this. By connecting the output end of the motor with one end of the screw rod 114, the rotation of the output end of the motor can drive the screw rod 114 to rotate, thereby driving the scissor lifting mechanism 113 to ascend or descend, so that the wing plate heating module 12 is close to the lower wing plate surface of the profile steel assembly 3.

[0037] As a preferred scheme of the utility model, the middle part of the wing plate heating module 12 corresponds to the middle part of the wing plate 31 of the profile steel assembly 3.

[0038] The middle part of the wing plate heating module 12 is arranged in correspondence with the middle part of the wing plate 31 of the profile steel assembly 3, so that the heating position of the wing plate heating module 12 on the weld is more appropriate.

[0039] As a preferred scheme of the utility model, the wing plate heating module 12 is an electromagnetic induction heating module; and / or, the web heating module 24 is an electromagnetic induction heating module.

[0040] It should be noted that: the wing plate heating module 12 and the web heating module 24 are preferably but not limited to electromagnetic induction heating modules, and the heating effect is more uniform through electromagnetic induction.

[0041] As a preferred scheme of the utility model, the electromagnetic induction heating module is a coil disc.

[0042] Specifically, the electromagnetic induction heating module is preferably but not limited to a 200*200mm coil disc, so as to meet the welding preheating width requirement of GB / T50661, and the medium frequency induction heating can be adopted to improve the temperature in the weld area in a short time and meet the preheating requirement.

[0043] As a preferred scheme of the utility model, the vertical telescopic mechanism 21 comprises a primary shaft body 211, a secondary shaft body 212 telescopically sleeved on the inner side of the upper part of the primary shaft body 211, and an electric lifting control mechanism arranged at the lower end of the secondary shaft body 212 and the inner side bottom of the primary shaft body 211; first gear racks 2111 are vertically and oppositely arranged on the two opposite inner side walls of the primary shaft body 211; and corresponding first gear wheels 2121 matched with the first gear racks 2111 are arranged on the two opposite outer side walls of the secondary shaft body 212.

[0044] Specifically, the height of the second shaft body 212 is controlled by the electric lifting control mechanism, first racks 2111 are arranged on the two opposite inner side walls of the first shaft body 211 respectively, at least one first rack 2111 can be arranged on each inner side wall, first gears 2121 are arranged on the two opposite outer side walls of the second shaft body 212 corresponding to the first racks 2111, and the stable lifting of the vertical telescopic mechanism 21 is realized by the meshing cooperation of the first racks 2111 and the first gears 2121.

[0045] It should be noted that the above is the preferred structure of the vertical telescopic mechanism 21, which can also be replaced by an electric control, gas control or hydraulic lifting platform, and the utility model does not make special limitations.

[0046] As a preferred scheme of the utility model, the electric lifting control mechanism 21 comprises a motor 2131 arranged at the inner bottom of the first shaft body 211 and a second screw rod 2132 connected with the output end of the motor 2131, and the bottom end of the second shaft body 212 is connected with the nut 21321 of the second screw rod 2132 through a connecting rod 2133.

[0047] Specifically, the motor 2131 drives the screw rod 2132 to rotate, the screw rod 2132 drives the second shaft body 212 to ascend and descend, and thus the lifting function of the vertical telescopic mechanism 21 is realized.

[0048] As shown in the figure, Figure 3 As a preferred scheme of the utility model, the electric control horizontal moving mechanism 23 comprises a strip-shaped frame 231 arranged horizontally, second racks 232 arranged on the two inner side walls of the strip-shaped frame 231, a second gear 233 arranged horizontally in the strip-shaped frame 231 and matched with the second racks 232, and a second electric control rotary output mechanism 234 connected with the second gear 233; the bottom of the second electric control rotary output mechanism 234 is fixed on the top surface of the vertical telescopic mechanism 21, and a sliding groove 2311 is arranged at the bottom end of the strip-shaped frame 231; the strip-shaped frame 231 is arranged on the guide rail 22 through the sliding groove 2311.

[0049] Specifically, the second racks 232 are arranged on the two inner side walls of the strip-shaped frame 231 oppositely along the length direction of the strip-shaped frame 231, the second gear 233 matched with the second racks 232 is arranged in the strip-shaped frame 231, when the second electric control rotary output mechanism 234 drives the second gear 233 to rotate, the strip-shaped frame 231 is horizontally slid on the guide rail 22 through the sliding groove 2311 by the meshing cooperation of the second gear 233 and the second racks 232, and thus the horizontal displacement on the top surface of the vertical telescopic mechanism 21 is realized.

[0050] It should be noted that the above-mentioned electric control horizontal moving mechanism 23 is a preferred structure, and other mechanisms capable of achieving controllable translation effect can also be used to replace it, and the utility model is not particularly limited to this.

[0051] As a preferred embodiment of the utility model, the second electric control rotating output mechanism 234 is a motor.

[0052] It should be noted that the second electric control rotating output mechanism 234 is preferably but not limited to a motor.

[0053] As can be seen from the above specific embodiments, the weld preheating device provided by the utility model, through the structural design of the wing plate heating device and the web plate heating device, before the H-shaped steel or T-shaped steel enters the welding production line, if the steel assembly has a preheating requirement, the height of the vertical lifting platform is adjusted, the wing plate heating module is attached to the bottom surface of the wing plate of the H-shaped or T-shaped steel assembly, and the wing plate is automatically preheated; the height of the web plate heating device is adjusted by the vertical telescopic mechanism, the electric control horizontal moving mechanism adjusts the horizontal position on the top surface of the vertical telescopic mechanism by using the slide rail, so that the web plate heating module is attached to the position of the web plate of the steel assembly close to the web plate and the wing plate weld, so as to automatically heat the web plate; the blank of automatic welding preheating on the H-shaped steel or T-shaped steel intelligent production line is filled; the utility model can move synchronously with the automatic welding machine, manual work is saved, and automatic and efficient preheating is realized.

[0054] The weld preheating device according to the utility model is described above with reference to the accompanying drawings in an exemplary manner. However, those skilled in the art should understand that various improvements can be made to the above-mentioned weld preheating device of the utility model without departing from the content of the utility model. Therefore, the protection scope of the utility model should be determined by the content of the appended claims.

Claims

1. A weld preheating device for preheating the weld of H-shaped steel or T-shaped steel before entering a welding production line; characterized in that, The wing plate heating device and the web plate heating device are included; wherein The wing plate heating device includes a vertical lifting platform arranged below the wing plate of a section steel assembly to be sent into a welding production line and a wing plate heating module arranged on the top surface of the vertical lifting platform; The web plate heating device includes a vertical telescopic mechanism arranged on the side of the web plate of the section steel assembly to be sent into the welding production line, a guide rail arranged on the top surface of the vertical telescopic mechanism, an electrically controlled horizontal moving mechanism slidingly arranged on the guide rail, and a web plate heating module arranged on the end surface of the electrically controlled horizontal moving mechanism towards the section steel assembly.

2. The weld preheating device according to claim 1, wherein The vertical lifting platform includes a base, a top platform, and a scissor lifting mechanism; wherein First long strip holes are correspondingly arranged on the top two opposite side walls of the base, and second long strip holes are correspondingly arranged on the bottom two opposite side walls of the top platform; the positions of the first long strip holes and the second long strip holes are opposite to each other; a first lower horizontal rod and a first upper horizontal rod are arranged on the lower end and the upper end of one side of the scissor lifting mechanism, respectively; a second lower horizontal rod and a second upper horizontal rod are arranged on the lower end and the upper end of the other side of the scissor lifting mechanism, respectively; The two ends of the first lower horizontal rod are fixed on the top two opposite side walls of the base, respectively; the two ends of the first upper horizontal rod are fixed on the bottom two opposite side walls of the top platform, respectively; the two ends of the second lower horizontal rod are arranged in the two first long strip holes, respectively; the two ends of the second upper horizontal rod are arranged in the two second long strip holes, respectively; a first lead screw is arranged between the first lower horizontal rod and the second lower horizontal rod; a first electrically controlled rotary output mechanism is connected to one end of the first lead screw.

3. The weld preheating device according to claim 2, wherein The first electrically controlled rotary output mechanism is a motor.

4. The weld preheating device according to claim 1, wherein The middle part of the wing plate heating module corresponds to the middle part of the wing plate of the section steel assembly.

5. The weld preheating device according to claim 1, wherein The wing plate heating module is an electromagnetic induction heating module; and / or The web plate heating module is an electromagnetic induction heating module.

6. The weld preheating device according to claim 5, wherein The electromagnetic induction heating module is a coil disc.

7. The weld preheating device according to claim 1, wherein The vertical telescopic mechanism includes a primary shaft body, a secondary shaft body sleeved on the inner side of the upper part of the primary shaft body, and an electric lifting control mechanism arranged at the lower end of the secondary shaft body and the inner side bottom of the primary shaft body; First racks are vertically and oppositely arranged on the two opposite inner side walls of the primary shaft body; first gears matching the first racks are arranged on the two opposite outer side walls of the secondary shaft body.

8. The weld preheating device according to claim 7, wherein The electric lifting control mechanism includes a motor arranged on the inner side bottom of the primary shaft body and a second lead screw connected to the output end of the motor. The bottom end of the secondary shaft body is connected with the nut of the second screw rod through a connecting rod.

9. The weld joint preheating device of claim 1, wherein, The electric control horizontal moving mechanism comprises a horizontally arranged strip-shaped frame, a second gear rack arranged on the inner side walls of the strip-shaped frame, a second gear wheel horizontally arranged in the strip-shaped frame and matched with the second gear rack, and a second electric control rotating output mechanism connected with the second gear wheel; the bottom of the second electric control rotating output mechanism is fixed on the top surface of the vertical telescopic mechanism, and a sliding groove is arranged at the bottom end of the strip-shaped frame; the strip-shaped frame is slidably arranged on the guide rail through the sliding groove.

10. The weld joint preheating device of claim 9, wherein, The second electric control rotating output mechanism is an electric motor.

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