CN216706406U

CN216706406U - Base metal preheating device for welding low-alloy high-strength structural steel

Info

Publication number: CN216706406U
Application number: CN202122746224.5U
Authority: CN
Inventors: 顾诚; 张健; 张俊
Original assignee: Changshu Changsheng Heavy Industry Steel Structure Co ltd
Current assignee: Changshu Changsheng Heavy Industry Steel Structure Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-06-10
Anticipated expiration: 2031-11-11

Abstract

The utility model discloses a base metal preheating device for welding low-alloy high-strength structural steel, which comprises a workbench, a clamping unit and a preheating unit, wherein the workbench is provided with a clamping groove; a clamping unit is arranged on the upper side of the workbench; preheat the unit and contain power component, slip subassembly, fixed station, gear, rack, flame projecting tube head and backup pad, the upside of workstation is equipped with the backup pad, the upside of backup pad is equipped with logical groove, the front side of fixed station passes through the slider and is connected with the dorsal part of rack, the dorsal part of rack slides with the vertical laminating in front side of fixed station, the slider of fixed station and the vertical slip in logical groove of backup pad, the gear is installed on power component, and the gear is connected with the meshing of rack, the flame projecting tube head is installed on the fixed station, and the flame projecting tube head is connected with outside energy source controller, and through power component, the flexibility of anchor clamps centre gripping steel sheet is high, can use in a flexible way, preheats the instrument and can preheat from top to bottom automatically.

Description

Low-alloy high-strength structural steel welding base metal preheating device

Technical Field

The utility model relates to the technical field of alloy welding, in particular to a base metal preheating device for welding low-alloy high-strength structural steel.

Background

Before the beginning of the formal welding work, the welding seam area of the thick steel plate needs to be preheated. During welding, cracks can be generated in a welding area due to local rapid heating and cooling, and preheating is a process of slowing down rapid heating and cooling of a welding area. In addition, the shrinkage stress can be reduced after the preheating, and the moisture and humidity of the welding zone can be removed.

A welding preheating device disclosed in the patent with publication number CN202147100U in the prior art includes a heating module for high-frequency induction heating of a component to be preheated, and an external chassis power supply module for supplying power to the heating module. The welding preheating device further comprises a motion module used for assisting the heating module to move and a built-in power supply module used for supplying power to the motion module.

The clamp has poor flexibility in clamping the steel plate, cannot be used flexibly, and the preheating tool cannot automatically preheat up and down.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a base metal preheating device for welding low-alloy high-strength structural steel.

In order to achieve the purpose, the utility model provides the following technical scheme: a base metal preheating device for welding low-alloy high-strength structural steel comprises a workbench, a clamping unit and a preheating unit;

a clamping unit is arranged on the upper side of the workbench;

a preheating unit: contain power component, slip subassembly, fixed station, gear, rack, flame projecting tube head and backup pad, the upside of workstation is equipped with the backup pad, the upside of backup pad is equipped with logical groove, the front side of fixed station is passed through the slider and is connected with the dorsal part of rack, the dorsal part of rack slides with the vertical laminating in front side of fixed station, the slider of fixed station and the vertical slip in logical groove of backup pad, the gear is installed on power component, and the gear is connected with rack toothing, the flame projecting tube head is installed on the fixed station. The flame projecting pipe head is connected with the outside energy controller, can control gear and rack meshing motion through power component, and the flame projecting pipe head in the backup pad is driven through the rack and reciprocates, preheats the splice of steel sheet.

Furthermore, the power assembly comprises a motor, the motor is fixed on the front side of the supporting plate through a motor frame, an output shaft of the motor is connected with the center of the gear, and an input end of the motor is electrically connected with an output end of an external power supply through an external control switch group. The gear can be controlled to rotate forwards and backwards repeatedly through the motor.

Furthermore, the sliding assembly comprises a pushing groove, the upper side of the workbench is provided with the pushing groove, and the bottom side of the supporting plate is longitudinally connected with the pushing groove in a sliding mode through a sliding block. The push groove can enable the supporting plate to move to drive the flame projecting pipe head to move forwards, so that the situation that the steel plate is too small to heat in a short distance is prevented.

Further, the centre gripping unit contains fixed centre gripping subassembly, promotion subassembly, lead screw two, splint two, spout and grip table, the grip table is installed on promoting the subassembly, the spout has been seted up to the upside of grip table, splint two have two, the bottom side of splint two is passed through slider and spout longitudinal sliding, the both ends of lead screw two are connected with the inside both sides rotation of spout, the both ends outside of lead screw two is equipped with two sections reverse screw threads, the both ends of lead screw two respectively with the screw threaded connection of splint two top shoe. The two welding parts are generally two, one welding part is firstly placed on the clamping table, the screw rod II is twisted to rotate, the sliding blocks on the two clamping plates II are in threaded connection with the screw rod II, and therefore the two clamping plates II are controlled to synchronously and reversely move to fix the welding part.

Further, fixed centre gripping subassembly contains lead screw one, splint one and fixed block one, the upside right-hand member at the workstation is fixed to fixed block one, the front end of lead screw one is connected with the rear side rotation of fixed block one, splint one is the L type, and the bottom side of splint one is vertically laminated with the upside of workstation and is slided, the outside of lead screw one both ends is equipped with two sections reverse screw threads, the both ends of lead screw one respectively with the screw threaded connection of splint one bottom. And the other welding part is placed between the two first clamping plates, and the two clamping plates synchronously and reversely move by twisting the first screw rod to fix the welding part.

Further, the promotion subassembly contains two fixed block and electric putter, electric putter's one end is passed through two fixed block and is fixed at the left end of workstation, and electric putter's the other end is connected the front side of centre gripping platform, and electric putter's input is connected through the output electricity of external control switch group with external power source. The electric push rod pushes the clamping table to move, so that the welding piece on the clamping table can move back and forth, and the welding piece can be attached to another welding piece at a different position.

Compared with the prior art, the utility model has the beneficial effects that: this preheating device has following benefit:

1. the flame projecting pipe head is connected with outside energy controller, can control gear and rack meshing motion through power component, drives the flame projecting pipe head in the backup pad through the rack and reciprocates, preheats the splice of steel sheet, uses manpower sparingly resource, reduces intensity of labour.

2. The bottom side of backup pad passes through slider and pushes away the vertical sliding connection of groove, can make the backup pad drive flame projecting tube head antedisplacement through pushing away the groove, prevents that the steel sheet undersize can't closely heat.

3. The electric push rod pushes the clamping table to move, so that the welding piece on the clamping table can move back and forth, and the welding piece can be attached to another welding piece at a different position.

Drawings

FIG. 1 is a schematic side view of the present invention.

In the figure: 1 workbench, 2 clamping units, 21 screw I, 22 screw II, 23 clamping plate I, 24 fixing block I, 25 fixing block II, 26 electric push rod, 27 clamping plate II, 28 sliding groove, 29 clamping table, 3 preheating unit, 31 fixing table, 32 motor, 33 gear, 34 rack, 35 push groove, 36 flame-spraying pipe head and support plate 37.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-1, the present embodiment provides a technical solution: a base metal preheating device for welding low-alloy high-strength structural steel comprises a workbench 1, a clamping unit 2 and a preheating unit 3;

a clamping unit 2 is arranged on the upper side of the workbench 1;

the clamping unit 2 comprises a fixed clamping assembly, a pushing assembly, a second screw rod 22, a second clamping plate 27, a sliding groove 28 and a clamping table 29, the clamping table 29 is installed on the pushing assembly, the sliding groove 28 is formed in the upper side of the clamping table 29, the number of the second clamping plate 27 is two, the bottom side of the second clamping plate 27 longitudinally slides through a sliding block and the sliding groove 28, the two ends of the second screw rod 22 are rotatably connected with the two inner sides of the sliding groove 28, two sections of reverse threads are arranged on the outer sides of the two ends of the second screw rod 22, and the two ends of the second screw rod 22 are respectively in threaded connection with screw holes of the sliding block on the second clamping plate 27. The number of the welding parts is two, one welding part is firstly placed on the clamping table 29, the second screw rod 22 is twisted to rotate, the sliding blocks on the two clamping plates 27 are in threaded connection with the second screw rod 22, and therefore the two clamping plates 27 are controlled to synchronously and reversely move to fix the welding part.

The fixed clamping assembly comprises a first screw rod 21, a first clamping plate 23 and a first fixing block 24, the first fixing block 24 is fixed at the right end of the upper side of the workbench 1, the front end of the first screw rod 21 is rotatably connected with the rear side of the first fixing block 24, the first clamping plate 23 is of an L shape, the bottom side of the first clamping plate 23 is longitudinally attached to the upper side of the workbench 1 to slide, two sections of reverse threads are arranged on the outer sides of two ends of the first screw rod 21, and two ends of the first screw rod 21 are respectively in threaded connection with screw holes at the bottom end of the first clamping plate 23. And the other welding piece is placed between the two first clamping plates 23, and the two first clamping plates 23 synchronously move in the opposite directions by twisting the first screw rod 21 to fix the welding piece.

The pushing assembly comprises a second fixing block 25 and an electric push rod 26, one end of the electric push rod 26 is fixed at the left end of the workbench 1 through the second fixing block 25, the other end of the electric push rod 26 is connected with the front side of the clamping table 29, and the input end of the electric push rod 26 is electrically connected with the output end of an external power supply through an external control switch group. The electric push rod 26 pushes the clamping table 29 to move, so that the welding part on the clamping table 29 can move back and forth, and can be jointed with another welding part at different positions.

The preheating unit 3: contain power component, sliding assembly, fixed station 31, gear 33, rack 34, flame projecting tube head 36 and backup pad 37, the upside of workstation 1 is equipped with backup pad 37, backup pad 37's upside is equipped with logical groove, the front side of fixed station 31 passes through the slider and is connected with the dorsal part of rack 34, the dorsal part of rack 34 slides with the vertical laminating of fixed station 31's front side, the slider of fixed station 31 and the vertical slip of logical groove of backup pad 37, gear 33 installs on power component, gear 33 is connected with the meshing of rack 34, flame projecting tube head 36 installs on fixed station 31. The flame-throwing pipe head 36 is connected with an external energy controller, the gear 33 and the rack 34 can be controlled to move in a meshed mode through a power assembly, the flame-throwing pipe head 36 on the supporting plate 37 is driven to move up and down through the rack 34, and the welding position of the steel plate is preheated.

The power assembly comprises a motor 32, the motor 32 is fixed on the front side of the supporting plate 37 through a motor frame, an output shaft of the motor 32 is connected with the center position of the gear 33, and an input end of the motor 32 is electrically connected with an output end of an external power supply through an external control switch group. The gear 33 can be controlled by the motor to rotate forward and backward repeatedly.

The sliding assembly comprises a push groove 35, the upper side of the workbench 1 is provided with the push groove 35, and the bottom side of the supporting plate 37 is longitudinally connected with the push groove 35 in a sliding manner through a sliding block. The push slot 35 can move the support plate 37 to drive the flame nozzle 36 to move forward, so as to prevent the steel plate from being too small to be heated in a short distance.

The working principle of the base metal preheating device for welding the low-alloy high-strength structural steel provided by the utility model is as follows: a worker places a welding part on the clamping table 29, the welding part is fixed by twisting the second lead screw 22, the sliding block on the second clamping plate 27 is in threaded connection with the second lead screw 22, the first clamping plate 23 is in synchronous reverse movement by controlling the second clamping plate 27 to move in the opposite direction, the welding part is fixed by placing the other welding part between the first clamping plate 23 and rotating the first lead screw 21, the first clamping plate 23 is in synchronous reverse movement, the second welding part is fixed by controlling the second clamping plate 23 to move, the welding part on the clamping table 29 can move back and forth by pushing the clamping table 29 through the electric push rod 26 and can correspond to the position different from the other welding part, the gear 33 is controlled by the motor to rotate in the opposite direction and engage with the rack 34, the rack 34 drives the flame spraying pipe head 36 on the supporting plate 37 to move up and down, and the welding part of the steel plate is preheated.

It is noted that the electric putter 26 disclosed in the above embodiments is designated as DX-TA30-500, the electric motor 32 is designated as HB556, and the control switch sets are used to control the electric putter 26 and the electric motor 32 to operate in the conventional manner.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a low alloy high strength structural steel welding is with mother metal preheating device which characterized in that: comprises a workbench (1), a clamping unit (2) and a preheating unit (3);

a clamping unit (2) is arranged on the upper side of the workbench (1);

preheating unit (3): contain power pack, sliding assembly, fixed station (31), gear (33), rack (34), flame projecting tube head (36) and backup pad (37), the upside of workstation (1) is equipped with backup pad (37), the upside of backup pad (37) is equipped with logical groove, the front side of fixed station (31) is passed through the slider and is connected with the dorsal part of rack (34), the dorsal part of rack (34) slides with the vertical laminating of the front side of fixed station (31), the slider of fixed station (31) and the vertical slip of logical groove of backup pad (37), install on power pack gear (33), gear (33) are connected with rack (34) meshing, flame projecting tube head (36) are installed on fixed station (31).

2. The apparatus for preheating the base material for welding of low-alloy high-strength structural steel according to claim 1, wherein: the power assembly comprises a motor (32), the motor (32) is fixed on the front side of the supporting plate (37) through a motor frame, an output shaft of the motor (32) is connected with the center position of the gear (33), and the input end of the motor (32) is electrically connected with the output end of an external power supply through an external control switch group.

3. The apparatus for preheating the base material for welding of low-alloy high-strength structural steel as set forth in claim 2, wherein: the sliding assembly comprises a pushing groove (35), the upper side of the workbench (1) is provided with the pushing groove (35), and the bottom side of the supporting plate (37) is longitudinally connected with the pushing groove (35) in a sliding mode through a sliding block.

4. The apparatus for preheating the base material for welding of low-alloy high-strength structural steel according to claim 1, wherein: centre gripping unit (2) contain fixed centre gripping subassembly, promotion subassembly, two (22) of lead screw, splint two (27), spout (28) and grip slipper (29), grip slipper (29) are installed on promoting the subassembly, spout (28) have been seted up to the upside of grip slipper (29), splint two (27) have two, the bottom side of splint two (27) is passed through slider and spout (28) longitudinal sliding, the inside both sides rotation of the both ends of two (22) of lead screw and spout (28) is connected, the both ends outside of two (22) of lead screw is equipped with two sections reverse screw, the both ends of two (22) of lead screw respectively with the screw threaded connection of two (27) sliders of splint.

5. The apparatus for preheating the base material for welding of low-alloy high-strength structural steel as set forth in claim 4, wherein: the fixed clamping assembly comprises a first screw rod (21), a first clamping plate (23) and a first fixing block (24), the first fixing block (24) is fixed at the right end of the upper side of the workbench (1), the front end of the first screw rod (21) is rotationally connected with the rear side of the first fixing block (24), the first clamping plate (23) is of an L shape, the bottom side of the first clamping plate (23) is longitudinally attached to the upper side of the workbench (1) to slide, two sections of reverse threads are arranged on the outer sides of two ends of the first screw rod (21), and two ends of the first screw rod (21) are respectively in threaded connection with screw holes at the bottom ends of the first clamping plate (23).

6. The apparatus for preheating the base material for welding of low-alloy high-strength structural steel as set forth in claim 5, wherein: the promotion subassembly contains fixed block two (25) and electric putter (26), the left end at workstation (1) is fixed through fixed block two (25) to the one end of electric putter (26), and the front side of centre gripping platform (29) is connected to the other end of electric putter (26), and the input of electric putter (26) is connected with external power source's output electricity through external control switch group.