CN112222245B

CN112222245B - Adjustable steel member arc arching device and arching method

Info

Publication number: CN112222245B
Application number: CN202010884536.XA
Authority: CN
Inventors: 李章龙; 付永东; 吴坤明; 王伟; 张钦
Original assignee: MCC Shanghai Steel Structure Technology Co Ltd
Current assignee: MCC Shanghai Steel Structure Technology Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2023-03-03
Anticipated expiration: 2040-08-28
Also published as: CN112222245A

Abstract

The invention relates to an adjustable steel member arc arching device which comprises a base, a jig frame, a connecting piece, a jacking component, a limiting component, a blocking preventing component and a measuring component. The jig frame is arranged on the base and can move and adjust the position, and the jig frame and the base are fixed in position through a connecting piece; the steel member arching device is characterized in that the steel member is limited by limiting parts on the jig frame, the anti-blocking parts are arranged on the jig frame to guarantee safety or prevent accidents, the jacking parts and the measuring parts are arranged, the jacking parts are used for arching the steel member, the steel member can be moved and can be freely stopped according to the arching size, and the measuring parts measure the moving distance of the jacking parts to calculate the arching size. The invention has high safety factor; the controllability is strong, and the operation precision is guaranteed; time and labor are saved, cost is reduced, and efficiency is improved.

Description

Adjustable steel member arc arching device and arching method

Technical Field

The invention relates to steel structure manufacturing and mechanical equipment, in particular to an adjustable steel member arc-shaped arching device and an arching method.

Background

In the steel structure manufacturing industry, the arched member forms are mainly box type and H type. Currently, arching of steel members generally takes two ways, the second of which is relatively more used.

The first arch camber mode: after the component main body is assembled and formed, all the components of the component are welded to complete the process, and the shape of the component is continuously changed by using a baking mode at a proper time so as to achieve the arching effect. After the heating and cooling, checking the arching size, continuously heating the non-satisfactory arch, and continuously and repeatedly controlling the arching size. And checking the arch camber size and correcting the arch camber which does not meet the requirements until the arch camber is qualified before the manufacturing is finished and the handling is finished.

The second arch camber mode: first, when blanking the component of the component body, a panel (usually a web, hereinafter referred to as a web) parallel to the arching direction is cut into a corresponding arc according to the arching size. Secondly, for the H-shaped member, a panel (usually, a flange plate, hereinafter referred to as a flange plate) perpendicular to the arching direction is attached to the radian cut by the web by using an assembling machine; for the box-type component, the shape of the flange plate is changed continuously by heating to make the flange plate be curved, and then the flange plate is attached to the radian cut by the web plate. Then, the shape is fixed by welding. And finally, checking the size of the arch before the manufacture is finished and correcting the arch which does not meet the requirements until the arch is qualified.

The steel structure arching prior art mainly realizes the arching value of design requirement through the mode of multiple spot fire, and the precision, the error that use this method operation can't guarantee the design requirement are great, and the process leans on the manual work to use roast the rifle, and is inefficient, extravagant manpower and material resources and roast the in-process and all be open fire, have certain potential safety hazard.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an adjustable steel member arc arching device and an arching method.

In order to solve the technical problem, the invention is realized as follows:

in a first aspect, at least one stationary base is provided. The device can be anchored on the ground or fixed at other fixed positions.

And secondly, manufacturing a jig frame. The jig frame is placed on the base in the first point, and the jig frame can move to adjust the position. The jig frame is connected to the base in the first point, and the jig frame is immovable in at least one direction by some connection.

And in the third point, a jacking component, a limiting component, a blocking prevention component and a measuring component are respectively arranged on the jig frame of the second point. The functions of the four components are respectively: the jacking component can move in a certain direction according to the size of the arch camber and can freely stop; the limiting component can move according to the size of the component and can freely stop the limiting component; the blocking prevention part is used for ensuring safety or preventing accidents and the like and can be arranged at a proper position as required; the measuring component is used for measuring the relevant movable distance of the jacking component so as to calculate the size of the arch camber, and the measuring component can be arranged at a proper position according to the requirement;

and fourthly, all the assemblies described in the previous three points are combined and connected, and the components are used according to the operation requirements of the component. And in addition, a reinforcing plate is arranged at the weak stress position of the related assembly according to the requirement.

And fifthly, forming a device according to the combination of the four points, wherein the four points are not in strict sequence.

The utility model provides an adjustable steel member arc arching device which characterized in that: the device comprises a base, a jig frame, a connecting piece, a jacking component, a limiting component, a blocking prevention component and a measuring component.

The jig frame is arranged on the base and can move and adjust the position, and the jig frame and the base are fixed in position through a connecting piece; the steel member arch camber measuring device is characterized in that the jig frame is respectively provided with a limiting component for limiting the position of a steel member, a blocking preventing component for ensuring safety or preventing accidents, a jacking component and a measuring component, wherein the jacking component is used for arching the steel member, can be moved and can be freely stopped according to the arching size, and the measuring component measures the moving distance of the jacking component to calculate the arching size.

Adjustable steel member arc arching device, its characterized in that: the reinforced plate is arranged at the weak stress position according to needs.

Adjustable steel member arc arching device, its characterized in that: the base can make the bed-jig remove the regulation, and the bed-jig removal is realized to the accessible base: the base includes a flat board, and two blocks of curb plates are vertically established on the flat board, transversely are equipped with a plurality of slot holes on the curb plate, realize the portable regulation of bed-jig through this slot hole.

Adjustable steel member arc arching device, its characterized in that: the connecting member is a connecting structure by which the jig frame is immovable in at least one direction.

Adjustable steel member arc arching device, its characterized in that: the connecting piece is a clamping plate, and the long hole at the bottom of the jig frame are clamped by the clamping plate, so that the jig frame cannot move in the vertical direction of the clamping plate.

Adjustable steel member arc arching device, its characterized in that: the connecting piece is a pin shaft.

Adjustable steel member arc arching device, its characterized in that: the jacking component comprises a flat plate fixed with the jig frame, a measuring disc positioned on the upper part of the flat plate, a screw rod penetrating through the measuring disc and the flat plate, and a nut arranged at the bottom of the flat plate and screwed on the screw rod.

Adjustable steel member arc arching device, its characterized in that: the limiting component comprises a main limiting plate, reinforcing plates positioned on two sides of the main limiting plate and an adjustable movable structure positioned on the inner side of the main limiting plate, and the height of the adjustable movable structure is adjusted through bolts to limit the position of the steel component.

The arching method of the adjustable steel member arc-shaped arching device is characterized by comprising the following steps of:

firstly, cutting a web plate into a corresponding radian according to the size of arching when parts of a component main body are blanked;

step two, positive arching and assembling;

a jig frame provided with a jacking component, a limiting component, a blocking prevention component and a measuring component is parked at a proper position according to the length of the lower flange of the steel component and the actual requirement;

placing the lower flange plate on an upper jig frame, and adjusting a limiting part to a proper position according to a designed arching value so that the limiting part can limit the arching of the lower flange plate;

the middle part of the lower flange is lifted by a lifting device by utilizing the elasticity and the extensibility of the steel plate, so that the lower flange plate forms an arch shape, the arch degree is more than or equal to a designed arch-forming value, then a corresponding lifting part at the position of the limiting part is lifted, the lower flange plate is jacked, and the limiting part is matched for limiting and ensuring the safety;

then according to the ascending distance of the corresponding jacking component at the position of the limiting component, the corresponding jacking component at the middle part of the lower flange is lifted to the position meeting the arching size, then the hoisting equipment is loosened to enable the lower flange plate to rebound, and the jacking component is pressed and fixed;

then, a web plate with a corresponding radian is attached, assembled and cut on the lower flange and welded and shaped;

and thirdly, reversely arching and assembling.

Firstly, taking down the lower flange plate and the web plate which are shaped on the jig frame. And then the jig frame provided with the corresponding jacking component, the limiting component, the anti-blocking component and the measuring component is parked at a proper position according to the length of the upper flange and the actual requirement.

The upper flange plate is put on the jig frame. And adjusting the limiting component at the middle part of the upper flange plate to fix the upper flange plate.

And respectively lifting the two ends of the upper flange by using lifting equipment by utilizing the elasticity and the extensibility of the steel plate, so that the upper flange plate forms a reverse arch shape, and the arch degree is more than or equal to a design arch camber value. Then the jacking component at the corresponding position is lifted to the position meeting the arching size, and then the hoisting equipment is loosened to enable the upper flange plate to rebound, and the jacking component is pressed to be fixed.

And then, the lower flange plate and the web plate which are shaped in the second step are attached and assembled on the upper flange, and then the lower flange plate and the web plate are welded and shaped. In order to control the influence of the welding stress of the other parts except the main body on the arching size, the other parts can be completely welded on the jig frame, and then the jacking part and the limiting part are loosened to enable the component to return to the free state.

And (4) according to the three steps, namely, the arching of the component is completed, and the three steps have no strict sequence. In the same way, the arch camber can be performed first and then the reverse arch camber can be performed, and the reverse arch camber can be performed first and then the forward arch camber can be performed.

The invention has the beneficial effects that:

the safety factor is high; the controllability is strong, and the operation precision is guaranteed; time and labor are saved, cost is reduced, and efficiency is improved; the device disclosed by the invention is detachable, movable and reusable, can be used for arching operation of steel members with different thicknesses and sizes, and is wide in application range and high in practicability.

1. The bed-jig is basically required to be arranged for manufacturing the steel structure, and the device can be completely used as the bed-jig when the device is not arched, and is more practical and reliable compared with a common bed-jig. The position of the component can be adjusted in a jacking and limiting way and fixed, the component with unstable gravity center can be prevented from toppling over to hurt people, the production safety is improved, and the lifting device is practical and convenient.

2. At present, the common arch camber mode is adopted, and the arch camber size monitoring and measurement adjustment cannot be strictly carried out in the arch camber process. The device implements arching, and the arching size can be conveniently monitored and timely adjusted at any time in the process.

3. The concentration process saves time and labor, reduces cost and improves efficiency, reduces the influence of other processes on the arching size, can be measured and controlled in the arching process, and improves the arching precision.

The first currently takes the arching mode of fire. The shape of the component is continuously adjusted by using the principle of expansion with heat and contraction with cold so as to achieve the purpose of arching. The deformation degree of the component is not easy to monitor, and the designed arching value needs to be continuously and repeatedly heated and corrected. The fire arching usually takes three to four hours or even one to two days to complete, and the gas and the labor are extremely consumed.

The second current arching mode, which is adopted to cut out the arching radian of the web plate, arches the H-shaped member. The H-shaped component is forced to be attached to the web plate through an assembling machine, the web plate only has an arching radian, and the flange plate does not have the arching radian, so that the phenomenon that the attachment is not tight after construction is common. In the steel structure construction, the assembling process is independent, and the size of the arch camber cannot be adjusted intentionally after the assembling is finished. In addition, the subsequent process construction causes the influence of welding stress on other parts of the member, so that the arching size is greatly changed. Therefore, when the arching size is checked before the next process is finished and the arching size is handed over, the requirement is often not met, and the repeated fire correction is carried out until the arching size is qualified.

And the third arch-camber box-type component which is currently adopted in an arch camber mode of cutting a web plate arch camber. The flange plate of the box-shaped member needs to be deformed by firing to fit the web. Also, it is extremely gas and labor intensive. The arching size is still greatly influenced by welding stress and the like in the construction of the subsequent process. The manual inspection still needs to be repeatedly heated and corrected until the manual inspection is qualified.

Carry out the arching through the device, no matter be H type component or box component, the homoenergetic is stereotyped out the arching radian with upper and lower flange plate during the arching is stereotyped, and perfect laminating cuts out two arcs about the web of arching radian, makes the arching size obtain the accuracy assurance. In addition, the main material of the component can be continuously fixed on the device after arching and shaping, and the device is used as a jig frame to continuously finish the construction of the following procedures. And the device is used for fixing the member to carry out the subsequent process construction, so that the influence of the welding stress and the like of the subsequent process on the arching size can be effectively reduced, the arching size can be more accurately controlled, and repeated correction is not needed due to the arching size after the process construction is finished. Therefore, the assembly process and the subsequent process are combined and contracted, so that the construction can be continued without the limitation of site space and process conversion time. Time and labor are saved, cost is reduced, and efficiency is improved.

4. The material selection for manufacturing the device and the connection mode among all components are not limited greatly, and the device is easy to manufacture in the steel structure manufacturing industry without excessive cost.

Except the adjusting parts of the limiting part and the jacking part, other components of the device can be made of steel plates or section steel completely, and the manufacturing method is simple and convenient.

The steel plate and the section steel are necessary raw materials for steel structure enterprises, and the device can be completely manufactured by utilizing excess materials. From the standpoint of the jig requirements of the enterprise, the device, when not arched, acts as a jig and is manufactured without significantly increasing the cost of the enterprise.

The pin shaft, the bolt or the jack and other materials are common products in steel structure construction engineering, and the materials can be taken on site.

The connection between each component of the device can be realized by welding, and the device is reliable and safe. The hole drilling of each part is also a conventional steel structure manufacturing means for steel structure manufacturing enterprises, and is not obstructed.

5. The jig frame containing the components of the device can be separated from the base and can be repeatedly disassembled or assembled for use. When the device is not used, the moulding beds can be managed and placed in a unified way to save space or be used for other purposes. If the base is not fixed in the form of an earth anchor, the base is fixed on other equipment or other positions in other modes, the fixing mode is that the base can be repeatedly disassembled and assembled, and the base can also be disassembled.

6. For special requirements, the arching of the component is definitely not allowed to be hot-bent or has higher requirements on arching precision. The current practice requires the flange plate to be mechanically bent or rolled to an arching curvature before being combined with the web.

The arch camber using the device is similar to the arch camber assisted by a bending or roller arc flange plate, and the precise control in the process does not need to perform fire correction.

More steel structure manufacturing enterprises for bending or rolling arc equipment do not have, and when the process is required, materials need to be transported after external bidding to complete the process and then the process returns to the next process. Not only is time and labor consuming, but also the production cost is greatly increased. If the device is adopted for arching, the arching requirements of high precision and incapability of hot bending are met, the bending or roller arc process is omitted, and the production and manufacturing cost is saved.

7. The device can design and adjust the appearance size of the device, the size of corresponding components, the thickness of a material plate of the manufacturing device, the strength of the material, the size of a hole of a connecting part and different connecting modes according to the types and the sizes of components of a steel structure manufacturing enterprise project, so that the range of the applicable components of the device is changed, and the production and manufacturing requirements of enterprises are met.

Through the design, the movable range of the limiting component can cover the size of all the components perpendicular to the arching direction, namely the width of the flange plate. The limiting part can adjust the moving range of the limiting arching assembly, and the limiting part covers the sizes of all the component arching directions and the heights of the component web plates in the directions. Therefore, the device is applicable to a wide range of types and sizes of the arching components and has strong practicability.

Drawings

The invention is described in further detail below with reference to the following figures and embodiments:

fig. 1 is a schematic split view of the present application.

FIG. 2 is a schematic view of the present application.

Fig. 3 is an enlarged schematic view of the jacking member.

Fig. 4 is an enlarged schematic view of the limiting member.

Fig. 5 is a schematic view of forward arching and assembly.

FIG. 6 is a schematic view of the inverted arch camber and assembly.

FIG. 7 is a schematic diagram of lifting and limiting lifting and measuring.

Detailed Description

As shown in fig. 1-7: an adjustable steel member arc arching device comprises a base 1, a jig frame 2, a connecting piece 3, a jacking component 4, a limiting component 5, a blocking prevention component 6 and a measuring component 7;

the jig frame is arranged on the base and can move and adjust the position, and the jig frame and the base are fixed in position through a connecting piece; the steel member arching device is characterized in that the steel member is limited by limiting parts on the jig frame, the anti-blocking parts are arranged on the jig frame to guarantee safety or prevent accidents, the jacking parts and the measuring parts are arranged, the jacking parts are used for arching the steel member, the steel member can be moved and can be freely stopped according to the arching size, and the measuring parts measure the moving distance of the jacking parts to calculate the arching size.

Further, the device also comprises a reinforcing plate 10, and the related components are provided with the reinforcing plate at the weak stress position according to requirements.

Further, the base can make the bed-jig move the regulation. The jig frame can be moved by a base: the flat plate is vertically provided with two side plates, a plurality of long holes 8 are transversely arranged on the side plates, and the movable adjustment of the jig frame is realized through the long holes.

Further, the connecting member is a connecting structure which connects the jig frame to be immovable in at least one direction. Other connection modes such as accessible cardboard or round pin axle realize, adopt the cardboard then to block slot hole and bed-jig bottom slot hole, make the bed-jig can not remove in the vertical direction of cardboard.

Further, the connecting piece can also be a pin shaft.

Furthermore, the jacking component comprises a flat plate 11 fixed with the jig frame, a measuring disc 12 positioned on the upper portion of the flat plate, a screw rod penetrating through the measuring disc and the flat plate, and a nut 13 arranged at the bottom of the flat plate and screwed on the screw rod, wherein the measuring disc is fixed on the screw rod in a welding or glue mode, and the movable distance of the screw rod is measured by matching with the measuring component.

Furthermore, the limiting component comprises a main limiting plate 14, reinforcing plates 15 positioned on two sides of the main limiting plate, and an adjustable movable structure 16 positioned on the inner side of the main limiting plate, wherein the adjustable movable structure limits the position of the steel component by adjusting the height through bolts, and the limiting component is arranged in a limiting long hole 9 on the jig frame.

The method specifically comprises the following steps:

as shown in fig. 1-4: at least one stationary base 1 is provided. The device can be anchored on the ground or fixed in other fixed positions.

The jig frame 2 is manufactured. The bed 2 is placed on the base 1 in a first point, the bed being movable to an adjusted position. The jig frame 2 is connected to the base 1 at a first point, and the jig frame 2 is immovable in at least one direction by the connection.

And in the third point, a jacking component 4, a limiting component 5, a blocking prevention component 6 and a measuring component 7 are respectively arranged on the jig frame 2 in the second point. The functions of the four components are respectively: the jacking part 4 can move in a certain direction according to the arching size and can freely stop; the limiting component 5 can move according to the size of the component and can freely stop the limiting component; the blocking prevention part 6 is used for ensuring safety or preventing accidents and the like; the measuring component 7 is used for measuring the relative moving distance of the jacking component so as to calculate the arching size;

and fourthly, all the assemblies described in the previous three points are combined and connected, and the components are used according to the operation requirements of the component. And a reinforcing plate 8 is arranged at the weak stress position of the related assembly according to the requirement.

And fifthly, forming the arching device according to the four points, wherein the four points are not in strict sequence.

An arching method of an adjustable steel member arc arching device comprises the following steps:

firstly, cutting a web plate into a corresponding radian according to the size of an arch when parts of a component main body are blanked;

step two, positive arching and assembling;

the middle part of the lower flange is lifted by using lifting equipment by utilizing the elasticity and the extensibility of the steel plate, so that the lower flange plate forms an arch shape, the camber is more than or equal to a designed camber value, then a corresponding lifting component at the position of the limiting component is lifted to jack the lower flange plate, and the lower flange plate is matched with the limiting component to limit and ensure the safety;

then according to the ascending distance of the jacking component corresponding to the position limiting component, the jacking component corresponding to the middle part of the lower flange is ascended to the position meeting the arching size, then the hoisting equipment is loosened to enable the lower flange plate to rebound, and the jacking component is pressed and fixed;

and thirdly, reversely arching and assembling.

The size confirmation and measurement of the reverse arch camber are the same as those of the forward arch camber, the reverse arch camber is limited and fixed at the middle part, and the two ends are jacked and fixed.

And (4) arching the component according to the three steps, wherein the three steps are not in strict sequence. In the same way, the arch camber can be performed first and then the reverse arch camber can be performed, and the reverse arch camber can be performed first and then the forward arch camber can be performed.

As illustrated in fig. 5 and 6, the arching of the H-shaped member is performed with three jig frames provided with corresponding parts, three bases, and a device provided with a simple reinforcing plate. In the figure, the H-shaped component is represented by an upper flange plate H1, a lower flange plate H2 and a web plate H3 with a cut arch, and the combination of H1, H2 and H3 is the H-shaped component.

For the arching of the box-type elements by means of this device, it is necessary to provide a convex shape at the corresponding position on the flange restrained by the restraining element, the convex portion serving to restrain the restraining element in order to complete the arching.

Claims

1. The utility model provides an adjustable steel member arc arching device which characterized in that: the device comprises a base, a jig frame, a connecting piece, a jacking part, a limiting part, a blocking prevention part and a measuring part;

the jig frame is arranged on the base and can move and adjust the position, and the jig frame and the base are fixed in position through a connecting piece; the jig frame is respectively provided with a limiting component for limiting the position of the steel member, a blocking prevention component for ensuring safety or preventing accidents, a jacking component and a measuring component, wherein the jacking component is used for arching the steel member, can move and freely stop according to the arching size, and measures the moving distance of the jacking component to calculate the arching size;

the reinforcing plate is arranged at the weak stress position according to the requirement; the base can make the bed-jig remove the regulation, and the bed-jig removal is realized to the accessible base: the base comprises a flat plate, two side plates are vertically arranged on the flat plate, a plurality of long holes are transversely arranged on the side plates, and the movable adjustment of the jig frame is realized through the long holes; the connecting piece is a connecting structure, and the jig frame is immovable at least in a certain direction through connection; the connecting piece is a clamping plate, and the long hole at the bottom of the jig frame are clamped by the clamping plate, so that the jig frame cannot move in the vertical direction of the clamping plate; the connecting piece is a pin shaft; the jacking component comprises a flat plate fixed with the jig frame, a measuring disc positioned on the upper part of the flat plate, a screw rod penetrating through the measuring disc and the flat plate and a nut arranged at the bottom of the flat plate and screwed on the screw rod; the limiting component comprises a main limiting plate, reinforcing plates positioned on two sides of the main limiting plate and an adjustable movable structure positioned on the inner side of the main limiting plate, and the height of the adjustable movable structure is adjusted through bolts to limit the position of the steel component.

2. A method of arching an adjustable steel member arch arching device according to claim 1, characterised by the steps of:

step two, positive arching and assembling;

thirdly, reversely arching and assembling;

firstly, taking down the lower flange plate and the web plate which are shaped on the jig frame; then according to the length of the upper flange and the actual requirement, a jig frame provided with a corresponding jacking component, a limiting component, a blocking prevention component and a measuring component is parked at a proper position;

placing the upper flange plate on the jig frame; adjusting a limiting part at the middle part of the upper flange plate to fix the upper flange plate;

respectively lifting two ends of the upper flange by using lifting equipment by utilizing the elasticity and the extensibility of the steel plate so that the upper flange plate forms a reverse arch shape and the camber is more than or equal to a designed camber value; then, the jacking component at the corresponding position is lifted to the position meeting the arching size, and then the hoisting equipment is loosened to enable the upper flange plate to rebound and press the jacking component to be fixed;

then, the lower flange plate and the web plate which are shaped in the second step are attached to and assembled on the upper flange, and then welding and shaping are carried out; in order to control the influence of the welding stress of other parts except the main body on the arching size, then all the other parts are welded on the jig frame, and then the jacking part and the limiting part are loosened to enable the component to recover the free state;

arching the component according to the three steps without strict sequence; in the same way, the arch camber can be performed first and then the reverse arch camber can be performed, and the reverse arch camber can be performed first and then the forward arch camber can be performed.