CN223070783U

CN223070783U - Welding anti-deformation device

Info

Publication number: CN223070783U
Application number: CN202422076977.3U
Authority: CN
Inventors: 李涛; 石教澜
Original assignee: Wuhan Yiye Steel Structure Co Ltd
Current assignee: Wuhan Yiye Steel Structure Co Ltd
Priority date: 2024-08-27
Filing date: 2024-08-27
Publication date: 2025-07-08
Anticipated expiration: 2034-08-27

Abstract

The present application provides a welding anti-deformation device, which relates to the technical field of welding anti-deformation, and includes: an anti-deformation frame, a controller, and a clamping device arranged on the anti-deformation frame, which is provided with multiple devices for clamping and fixing the two ends of the workpiece to be welded; a jacking device, which is provided with multiple devices for jacking the workpiece to be welded at multiple points; and a displacement sensor, which is located near the jacking device of the anti-deformation frame, is provided with multiple devices and corresponds to the multiple jacking devices one by one, and is used to monitor the displacement change of the jacking device corresponding to the fulcrum of the workpiece to be welded; the controller is electrically connected to the clamping device, the jacking device and the displacement sensor. The present application has the effect of improving the efficiency of anti-deformation welding.

Description

Welding reverse deformation device

Technical Field

The application relates to the technical field of welding reverse deformation, in particular to a welding reverse deformation device.

Background

With the continuous development of social economy, urban traffic pressure is increased increasingly, meanwhile, in order to be compatible with urban integral planning construction, modern bridges are often designed and manufactured in a steel box girder mode, the steel box girder type bridges mainly comprise welding of top plates and bottom plates, welding of longitudinal and transverse partition plates and welding of connecting boxes in the manufacturing process, and particularly, when the top plates and the bottom plates are welded, the quality problem that plate bodies shrink and deform towards the welding direction often occurs, if the welding deformation is not corrected, the integral installation quality and the construction period of bridge structures are affected, and the safety and reliability of bridge engineering are reduced.

In the related art, a deformation is usually manufactured manually on a weldment in advance, so that the deformation is opposite to the deformation direction generated after welding and the values are equal, and the method is called an inverse deformation method, namely the size and the direction of structural deformation are estimated in advance, after the elevation is measured manually, a steel plate is blanked according to the size and cut, and then is fixed on a jig frame, so that the deformation in the opposite direction is given, and the deformation is counteracted with the welding deformation.

For the related technology, due to larger errors generated by manual measurement and cutting, a large amount of flame correction work is still needed for the plate unit element after the plate unit element is put down, so that the efficiency of the anti-deformation welding is lower.

Disclosure of utility model

In order to solve the problem of low efficiency of the reverse deformation welding, the application provides a welding reverse deformation device.

The application provides a welding reverse deformation device which adopts the following technical scheme:

a welding reverse deformation device comprising:

The anti-deformation jig frame, the controller and the anti-deformation jig frame are arranged on the anti-deformation jig frame:

the clamping devices are arranged and used for clamping and fixing two ends of a workpiece to be welded;

A plurality of jacking devices for jacking the workpieces to be welded at multiple points and

The displacement sensors are positioned at the positions, close to the jacking devices, of the reverse deformation jig frame, are provided with a plurality of jacking devices and correspond to the jacking devices one by one, and are used for monitoring displacement changes of the jacking devices corresponding to fulcrums of workpieces to be welded;

the controller is electrically connected with the clamping device, the jacking device and the displacement sensor.

Still further, the reverse deformation bed-jig comprises two bed-jig longitudinal beams and a plurality of bed-jig cross beams arranged between the two bed-jig longitudinal beams, wherein a plurality of the bed-jig cross beams are arranged at intervals along the length direction of the bed-jig longitudinal beams, the clamping device is arranged on the bed-jig longitudinal beams, and the jacking device is arranged on the bed-jig cross beams.

Further, the clamping devices are respectively arranged on the two jig frame longitudinal beams, and the clamping devices positioned on the same jig frame longitudinal beam are arranged at equal intervals along the length direction of the jig frame longitudinal beam.

Further, the plurality of jacking devices are respectively arranged on the plurality of jig frame beams, and the plurality of jacking devices positioned on the same jig frame beam are arranged at intervals along the length direction of the jig frame beam.

Still further, the bed-jig crossbeam is equipped with a plurality of holding tanks, jacking device is located the holding tank.

Further, the displacement sensor is arranged on one side of the jig frame beam and is consistent with the longitudinal coordinate of the jacking device corresponding to the displacement sensor.

Still further, the active end of jacking device is equipped with the pressure sensor who is used for monitoring the pressure between jacking device and the work piece that waits to weld, pressure sensor is connected with the controller electricity.

Still further, clamping device includes centre gripping support, upper end chuck, lower extreme chuck, rubber pad and centre gripping drive, centre gripping support and bed-jig longeron fixed connection, upper end chuck and lower extreme chuck all are located on the centre gripping support, just upper end chuck is located directly over the lower extreme chuck, the rubber pad is equipped with two and locates one side that upper end chuck and lower extreme chuck are close to each other respectively, the centre gripping drive is used for driving upper end chuck is close to or keeps away from the lower extreme chuck and removes.

Still further, be equipped with the spacing boss that is used for carrying out spacing to wait to weld the work piece tip on the lower extreme chuck, spacing boss is located the lower extreme chuck and is kept away from one side of waiting to weld the work piece.

Furthermore, the lower end chuck is in sliding connection with the clamping support along the transverse direction, the upper end chuck is in sliding connection with the clamping drive along the transverse direction, and the clamping support and the clamping drive are respectively provided with a sliding drive for driving the lower end chuck and the upper end chuck to slide.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The method comprises the steps that before welding a workpiece to be welded, a welding deformation curve is calculated in advance according to welding deformation characteristics, and an anti-deformation curve is calculated, so that the height required to be reached by the jacking device is determined, when the anti-deformation operation of the workpiece to be welded is carried out, the two ends of the workpiece to be welded are clamped and fixed through the clamping device, then the jacking device is used for jacking a plurality of points of the workpiece to be welded, and the controller judges and controls the jacking amount of the jacking device through the displacement sensor, so that the anti-deformation error is reduced, the workload of subsequent correction is reduced, and the efficiency of anti-deformation welding is improved;

2. Through setting up pressure sensor for the running state of each jacking device of monitoring that the controller can be accurate, after pressure sensor is obviously higher than or is less than theoretical value, the controller in time stops jacking device, thereby the staff of being convenient for inspects unusually, in time stops the damage.

3. Through transversely sliding setting up upper end chuck, lower extreme chuck, when upper end chuck and lower extreme chuck treat the work piece and fix the back, through sliding upper end chuck and lower extreme chuck, can control the position of treating the work piece both ends for treat the work piece and laminate theoretical curved surface more, thereby further reduce the work load of later stage correction.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic overall structure of an embodiment of the present application.

FIG. 2 is a schematic illustration of a hidden welded workpiece according to an embodiment of the application.

Fig. 3 is another schematic view of fig. 1.

Fig. 4 is a schematic structural view of a clamping device according to an embodiment of the application.

The fixture comprises the following components of a fixture, wherein the fixture is 1, a reverse deformation fixture, a fixture longitudinal beam, a fixture cross beam, 2, a clamping device, 21, a clamping bracket, 211, a base, 212, a supporting rod, 213, a top plate, 22, an upper end clamping head, 23, a lower end clamping head, 24, a clamping drive, 25, a limiting boss, 26, a rubber pad, 27, a connecting seat, 3, a jacking device, 4, a displacement sensor and 5, and a workpiece to be welded.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The embodiment of the application discloses a welding reverse deformation device. Referring to fig. 1, in this embodiment, a workpiece 5 to be welded is a steel plate, a welding anti-deformation device includes an anti-deformation jig frame 1, a clamping device 2, a jacking device 3 and a displacement sensor 4, the clamping device 2, the jacking device 3 and the displacement sensor 4 are all disposed on the anti-deformation jig frame 1, the clamping device 2 and the jacking device 3 are all provided with a plurality of clamping devices, the clamping devices 2 clamp and fix two ends of the workpiece 5 to be welded, the jacking device 3 is a hydraulic cylinder, alternatively, the jacking device 3 may also adopt an electric push rod, the jacking devices 3 perform multi-point jacking on the workpiece 5 to be welded, the displacement sensor 4 is disposed at a position close to the jacking device 3 of the anti-deformation jig frame 1, the displacement sensor 4 is provided with a plurality of jacking devices 3, and the controller is electrically connected with the clamping devices 2, the jacking device 3 and the displacement sensor 4.

Before welding the workpiece 5 to be welded, according to the transverse deformation characteristics of the workpiece 5 to be welded, a welding transverse deformation curve is calculated in advance, meanwhile, a control curve of the workpiece 5 to be welded in the reverse deformation transverse direction is obtained, according to the welding longitudinal deformation characteristics of the workpiece 5 to be welded, a welding longitudinal deformation curve is calculated in advance, a reverse deformation longitudinal control curve of the workpiece 5 to be welded is obtained, according to the obtained reverse deformation transverse control curve and the obtained reverse deformation longitudinal control curve, a reverse deformation control curve of the workpiece 5 to be welded is calculated, the reverse deformation curve is drawn into a curve graph, the curve graph is input into a computer, and the computer calculates the relative elevation of a corresponding fulcrum of each jacking device 3 in real time. When the workpiece 5 to be welded is subjected to reverse deformation operation, the workpiece 5 to be welded is placed on the reverse deformation jig frame 1, the controller clamps and fixes the two ends of the workpiece 5 to be welded by controlling the clamping device 2, and according to the relative elevation of each fulcrum calculated by a computer, the controller is matched with the displacement sensor 4 to control the jacking device 3 to jack up the point positions of the workpiece 5 to be welded, so that the workpiece 5 to be welded and the reverse deformation curved surface are in high coincidence, and only micro flame correction is needed, thereby greatly improving the efficiency of welding reverse deformation.

Specifically, referring to fig. 2 and 3, the anti-deformation jig 1 includes two parallel-arranged jig stringers 11, and a plurality of jig beams 12 disposed between the two jig stringers 11, in this embodiment, the plurality of jig beams 12 are arranged in seven, the plurality of jig beams 12 are equally spaced along the length direction of the jig stringers 11, the jig stringers 11 and the jig beams 12 are square steel, and two ends of the jig beams 12 are welded and fixed with the inner sides of the two jig stringers 11 respectively. The clamping device 2 is arranged on the jig frame longitudinal beam 11, and the jacking device 3 is arranged on the jig frame cross beam 12.

In order to fix the workpiece 5 to be welded, the clamping devices 2 are respectively arranged on the two jig frame stringers 11, and the clamping devices 2 on the same jig frame stringer 11 are arranged at equal intervals and are arranged in line with the jig frame beam 12, namely, two ends of the jig frame beam 12 are respectively provided with one clamping device 2. In order to make the work piece 5 to be welded evenly stressed in the reverse deformation, the plurality of jacking devices 3 are arranged on the plurality of jig frame beams 12 at equal intervals in a plurality of groups, and the plurality of jacking devices 3 on the same jig frame beam 12 are arranged at equal intervals along the length direction of the jig frame beam 12, in this embodiment, three jacking devices 3 are arranged on the same jig frame beam 12.

Because the bending degree of the work piece 5 to be welded of difference is different, in order to reduce that jacking device 3 outstanding bed-jig crossbeam 12 is too much, and the putting of work piece 5 to be welded leads to the fact the influence, be equipped with a plurality of holding tanks on the bed-jig crossbeam 12, holding tank quantity is unanimous with the jacking device 3 quantity on the same bed-jig crossbeam 12, and the cylinder body part of most jacking device 3 is located the holding tank inside, and the holding tank is stretched out to the piston end of jacking device 3 to make this device can adapt to the work piece 5 to be welded of great scope camber.

The displacement sensor 4 is used for monitoring the displacement change range of the jacking device 3 corresponding to the fulcrum of the workpiece 5 to be welded, and needs to be arranged near the jacking device 3. The displacement sensor 4 is an infrared sensor, the displacement sensor 4 is fixedly arranged on one side of the jig frame beam 12 through bolts and aligned with the longitudinal coordinates of the jacking device 3 corresponding to the jig frame beam, the infrared transmitter of the displacement sensor 4 is vertically arranged upwards, and the transmitted infrared rays are reflected to the infrared receiver through the workpiece 5 to be welded, so that the displacement change of the fulcrum can be judged.

In order to improve the safety of this device, be provided with pressure sensor on the active end top of every jacking device 3, when jacking device 3's active end carries out the jacking to the work piece 5 that waits to weld, pressure sensor's numerical value changes, and the numerical value of every pressure sensor of controller real-time supervision, when pressure sensor's numerical value is greater than or far less than theoretical numerical value, the controller stops all jacking devices 3 immediately to the staff of being convenient for inspects the unusual, reduces the possibility that anti-deformation device or waiting to weld work piece 5 to take place the damage, in time stops the damage.

Referring to fig. 4, the clamping device 2 includes a clamping bracket 21, an upper end chuck 22, a lower end chuck 23, a rubber pad 26, and a clamping drive 24, wherein the clamping bracket 21 includes a base 211, a top plate 213, and a support bar 212, the support bar 212 is disposed between the base 211 and the top plate 213, the base 211, the top plate 213, and the support bar 212 are integrally C-shaped, and the support bar 212 is disposed on a side of the base 211 away from the beam 12 of the tire frame. The clamping drive 24 is a hydraulic cylinder, and as an alternative embodiment, the clamping drive 24 may be an electric push rod, and a cylinder body of the clamping drive 24 is fixedly connected with one side of the top plate 213, which is close to the bottom plate, through bolts. The upper end chuck 22 and the lower end chuck 23 are rectangular plate-shaped, the upper end chuck 22 is connected with the movable end of the clamping drive 24, the lower end chuck 23 is arranged on one side of the base 211, which is close to the top plate 213, two rubber pads 26 are arranged, and the two rubber pads 26 are respectively arranged on one side of the upper end chuck 22 and one side of the lower end chuck 23, which are close to each other.

In order to facilitate replacement of the rubber pad 26, the rubber pad 26 is provided with raised strips, the upper end clamping head 22 and the lower end clamping head 23 are provided with grooves, and the rubber pad 26 is fixed by embedding the raised strips and the grooves, so that the rubber pad 26 is convenient to detach and install. Alternatively, rubber pad 26 may be adhesively secured to either upper chuck 22 or lower chuck 23.

In order to be able to rapidly position the workpiece 5 to be welded before clamping the workpiece 5 to be welded, a limiting boss 25 is arranged on the lower end chuck 23, the limiting boss 25 is located on one side of the lower end chuck 23 away from the workpiece 5 to be welded, the top surface of the limiting boss 25 is higher than the top surface of the lower end chuck 23, and before the workpiece 5 to be welded is subjected to reverse deformation operation, two ends of the workpiece 5 to be welded are respectively abutted with bosses on the lower end chucks 23 on the two jig frame stringers 11, so that the rapid positioning of the workpiece 5 to be welded is realized.

In order to enable the workpiece 5 to be welded to be in inverse deformation and to be more in line with the theoretical inverse deformation curved surface, the lower end chuck 23 is connected with the base 211 in a sliding manner along the transverse direction, a connecting seat 27 is arranged between the clamping driving 24 and the upper end chuck 22, the connecting seat 27 is fixedly connected with the movable end of the clamping driving 24 through bolts, the upper end chuck 22 is connected with the clamping driving 24 in a sliding manner along the transverse direction, and sliding driving is arranged on the base 211 and the connecting seat 27 and used for driving the upper end chuck 22 or the lower end chuck 23 to slide. Specifically, the base 211 and the connecting seat 27 are all hollow, the sliding drive is a linear motor, the upper end chuck 22 and the lower end chuck 23 are all provided with sliding blocks, the base 211 and the connecting seat 27 are all provided with sliding grooves matched with the sliding blocks, the upper end chuck 22 and the lower end chuck 23 slide through the matching of the sliding blocks and the sliding grooves, the movable end of the sliding drive is fixedly connected with the sliding blocks, the sliding drive drives the sliding blocks to slide, so that the upper end chuck 22 or the lower end chuck 23 is driven to slide, the distance can be changed after the two ends of the workpiece 5 to be welded are clamped and fixed, the shape of the workpiece 5 to be welded is more close to a theoretical reverse deformation curved surface, the workload of later correction is further reduced, and the efficiency of reverse deformation welding is further improved.

It should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the technical solution described in the above-mentioned embodiments may be modified or some technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiments of the present invention.

Claims

1. A welding reverse deformation device, comprising:

2. A welding reverse deformation device according to claim 1, wherein the reverse deformation jig comprises two jig stringers and a plurality of jig beams provided between the two jig stringers, the plurality of jig beams being arranged at intervals along the length direction of the jig stringers, the clamping device being provided on the jig stringers, and the jacking device being provided on the jig beams.

3. A welding reverse deformation device according to claim 2, wherein a plurality of the clamping devices are provided on two jig frame stringers, respectively, and the clamping devices on the same jig frame stringer are provided at equal intervals along the length direction of the jig frame stringer.

4. The welding reverse deformation device according to claim 2, wherein the plurality of jacking devices are respectively arranged on the plurality of jig frame beams, and the plurality of jacking devices on the same jig frame beam are arranged at intervals along the length direction of the jig frame beam.

5. A welding reverse deformation apparatus according to claim 4, wherein the jig frame cross member is provided with a plurality of receiving grooves, and the jacking means is located in the receiving grooves.

6. The welding reverse deformation device according to claim 5, wherein the displacement sensor is arranged at one side of the jig frame beam and is consistent with the longitudinal coordinates of the jacking device corresponding to the displacement sensor.

7. The welding reverse deformation device according to claim 6, wherein the movable end of the jacking device is provided with a pressure sensor for monitoring the pressure between the jacking device and the workpiece to be welded, and the pressure sensor is electrically connected with the controller.

8. The welding reverse deformation device according to any one of claims 1 to 7, wherein the clamping device comprises a clamping bracket, an upper end chuck, a lower end chuck, a rubber pad and a clamping drive, the clamping bracket is fixedly connected with the jig frame longitudinal beam, the upper end chuck and the lower end chuck are arranged on the clamping bracket, the upper end chuck is positioned right above the lower end chuck, the rubber pad is provided with two rubber pads and is respectively arranged on one side of the upper end chuck and one side of the lower end chuck, which are close to each other, and the clamping drive is used for driving the upper end chuck to move close to or away from the lower end chuck.

9. The welding reverse deformation device according to claim 8, wherein the lower end chuck is provided with a limiting boss for limiting the end of the workpiece to be welded, and the limiting boss is located on one side of the lower end chuck away from the workpiece to be welded.

10. The welding reverse deformation device according to claim 9, wherein the lower end clamp is slidably connected to the clamping bracket in a transverse direction, the upper end clamp is slidably connected to the clamping drive in a transverse direction, and the clamping bracket and the clamping drive are provided with sliding drives for driving the lower end clamp and the upper end clamp to slide.