CN216828042U - Super large diameter annular steel member positioning forming device - Google Patents
Super large diameter annular steel member positioning forming device Download PDFInfo
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- CN216828042U CN216828042U CN202220511456.4U CN202220511456U CN216828042U CN 216828042 U CN216828042 U CN 216828042U CN 202220511456 U CN202220511456 U CN 202220511456U CN 216828042 U CN216828042 U CN 216828042U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 42
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- 230000008569 process Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
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Abstract
The utility model provides a super large diameter annular steel member location forming device belongs to steel construction technical field. The positioning and forming device comprises: the tool comprises a tool platform, at least one first jacking assembly and at least one second jacking assembly, wherein the first jacking assembly is telescopically arranged on the tool platform and positioned on the inner side of the inner circular plate, and the inner circular plate is jacked tightly when the first jacking assembly is in an extension state; the second jacking assembly is telescopically arranged on the tooling platform and is located on the outer circular plate, and the second jacking assembly jacks the outer circular plate when in an extending state. The utility model discloses a set up the first tight subassembly in top of telescopic and the tight subassembly in top of second in order to push up the interior plectane and the excircle board of annular steel component tightly to carry out the school circle in proper order to interior plectane and excircle board respectively, make super large diameter edge rolling deflection little and steerable in error range, guarantee product quality, and save workman's the amount of labour, promote production efficiency, reduction of erection time.
Description
Technical Field
The utility model belongs to the technical field of the steel construction, concretely relates to super large diameter annular steel member location forming device.
Background
During the rolling and forming process, the steel plate is inevitably deformed. For round steel cylinders with the diameter larger than 4500mm, the round steel cylinders belong to super-large-diameter steel members, the traditional method is adopted to calibrate the round of the arc plate, the time is consumed, the labor capacity of workers is increased, the working efficiency is low, the deformation cannot be controlled within an error range, and the product quality is affected.
Therefore, it is necessary to provide a positioning and forming device for an oversized-diameter annular steel member.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least, provide an annular steel member of super large diameter location forming device.
The utility model discloses an aspect provides an oversized diameter annular steel member location forming device, include:
a tooling platform;
the first jacking assembly is telescopically arranged on the tooling platform and is positioned on the inner side of the inner circular plate of the annular steel member to be machined, and the first jacking assembly jacks the inner circular plate when in an extending state;
at least one second top tight subassembly, the tight subassembly of second top telescopically sets up just be located the excircle board outside of waiting to process annular steel member on the frock platform, works as the tight subassembly of second top is in the top tightly when extending the state outer plectane.
Optionally, the first tightening assembly comprises a first telescopic member and a first tightening member; wherein,
when the first telescopic piece is in an extending state, the first end of the first telescopic piece abuts against one side of the first top piece, and the other side of the first top piece abuts against the inner side wall of the inner circular plate; and the number of the first and second groups,
the center area of the tooling platform is also provided with a supporting piece, and the second end of the first telescopic piece is connected with the supporting piece.
Optionally, the first telescopic part comprises a first threaded connecting part, and a first lead screw and a second lead screw which are respectively in threaded connection with two ends of the first threaded connecting part; wherein,
the other end of the first lead screw is abutted against the first puller,
the other end of the second lead screw is fixedly connected with the supporting piece.
Optionally, a rotatable driving part is further arranged on the side wall of the first threaded connecting part in a penetrating manner, and when the driving part rotates, the first lead screw and the second lead screw move in opposite directions.
Optionally, the first tightening member includes a vertical plate and a plurality of transverse plates; wherein,
the vertical plate is arranged opposite to the inner circular plate, and one side of the vertical plate is abutted to the first lead screw;
one ends of the transverse plates are connected with the vertical plate, and the other ends of the transverse plates are abutted to the inner circular plate.
Optionally, the number of the transverse plates is three, and the three transverse plates are arranged in parallel along a direction perpendicular to the inner circular plate and the vertical plate.
Optionally, the second tightening assembly comprises at least one second tightening member and at least one second telescopic member, each second tightening member is connected with one second telescopic member, and when the second telescopic member is in an extended state, the second tightening member is tightened against the outer side wall of the outer circular plate.
Optionally, the second jacking assembly further comprises at least one support arranged on the tooling platform, each second telescopic piece comprises a second threaded connecting piece arranged on the corresponding support in a penetrating manner and a third lead screw connected with the second threaded connecting piece in a threaded manner, and the first end of the third lead screw is connected with the second jacking piece.
Optionally, the first end of the third lead screw is connected with a third threaded connection piece, the second tightening piece comprises two opposite arc plates, and the two arc plates are respectively arranged at the top end and the bottom end of the third threaded connection piece.
Optionally, the inner circular plate includes three inner circular arc plates, the apparatus includes three first tightening assemblies, and each first tightening assembly corresponds to one inner circular arc plate; and/or the presence of a gas in the gas,
the outer circular arc board includes three outer circular arc board, the device includes the tight subassembly in three second top, every the tight subassembly in second top corresponds one outer circular arc board.
The utility model provides a super large diameter annular steel member location forming device, wherein, the device includes: the tool comprises a tool platform, at least one first jacking assembly and at least one second jacking assembly, wherein the first jacking assembly is telescopically arranged on the tool platform and is positioned on the inner side of an inner circular plate of an annular steel member to be processed, and the inner circular plate is jacked when the first jacking assembly is in an extending state; the second jacking assembly is telescopically arranged on the tooling platform and is located on the outer circular plate outer side of the annular steel member to be machined, and when the second jacking assembly is in an extending state, the second jacking assembly jacks the outer circular plate. The utility model discloses a set up the first tight subassembly in top of telescopic and the tight subassembly in top of second in order to push up the interior plectane and the excircle board of annular steel component tightly to carry out the school circle in proper order to interior plectane and excircle board respectively, make super large diameter (not less than 4500mm) edge rolling deflection little and steerable in error range, guarantee product quality, and save workman's the amount of labour, promote production efficiency, reduction of erection time.
Drawings
Fig. 1 is a schematic view of an overall structure of a positioning and forming device for an oversized-diameter annular steel member according to an embodiment of the present invention;
fig. 2 is a top view structural diagram of the positioning and forming device for the ultra-large diameter annular steel member according to another embodiment of the present invention;
fig. 3 is a front view structural view of a positioning and forming device for an oversized-diameter annular steel member according to another embodiment of the invention;
fig. 4 is a schematic structural view of a first extendable member according to another embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second tightening assembly according to another embodiment of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Unless otherwise specifically stated, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the present invention belongs. As used in this application, the terms "comprises" or "comprising," or the like, do not specify the presence of stated shapes, numbers, steps, acts, operations, elements, components, and/or groups thereof, nor do they preclude the presence or addition of one or more other different shapes, numbers, steps, acts, operations, elements, components, and/or groups thereof. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number and order of the indicated features.
In some descriptions of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," or "fixed" and the like are not intended to be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect through an intermediate medium, communication between two elements, or interaction between two elements. Also, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate an orientation or positional relationship based on that shown in the drawings, and are used only to indicate a relative positional relationship, which may also be changed accordingly when the absolute position of the object being described is changed.
As shown in fig. 1 to 5, in one aspect of the present invention, there is provided a positioning and forming device for an ultra-large diameter annular steel member, wherein the ultra-large diameter annular steel member to be processed includes an inner circular plate 110 and an outer circular plate 120 which are sleeved with each other; and, the positioning and forming device comprises: the tool platform (not shown in the figures), at least one first tightening assembly 210 and at least one second tightening assembly 220, wherein the first tightening assembly 210 is telescopically arranged on the tool platform and is positioned on the inner side of the inner circular plate 110 of the annular steel member to be machined, and the inner circular plate 110 is tightened when the first tightening assembly 210 is in an extending state; the second jacking component 220 is telescopically arranged on the tooling platform and is positioned on the outer side of the outer circular plate 120 of the annular steel member to be machined, and the second jacking component 220 jacks the outer circular plate 120 in an extending state.
It should be noted that the steel member to be machined of this embodiment is a tubular structure, including the interior plectane and the excircle board that establish mutually, the diameter of its interior plectane is 4500mm, the diameter of outer plectane is 6500mm, overall height is 1800mm, in order to solve the technological problem of school circle after interior plectane and the shaping of excircle board coil plate, this embodiment is provided with the first tight subassembly in top of telescopic and the tight subassembly frock clamp in second top on the frock platform, in order to push up tightly respectively the interior plectane and the excircle board of annular steel member, and carry out the school circle in proper order to interior plectane and excircle board, improve the correction precision, save the school circle time, promote work efficiency, save cost, and the deflection of super large diameter annular steel member also controls in error range.
It should be further noted that, based on the dimensional data of the inner circular plate and the outer circular plate, the size range of the tooling platform of this embodiment is set to (5m to 10m) × (25mm to 35mm), for example, the tooling platform with a size of 8m × 30mm is set, that is, the tooling fixtures such as the first tightening component and the second tightening component of the whole positioning and forming device are fixed on the tooling platform, and the tooling fixtures are made of Q235 materials.
Specifically, as shown in fig. 1 to 4, first tightening unit 210 includes a first telescopic member 211 and a first tightening member 212; when the first telescopic member 211 is in an extended state, one end of the first telescopic member 211 abuts against one side of the first clamping member 212, and the central area of the tooling platform is further provided with a supporting member 230, the other end of the first telescopic member 211 is fixed on the supporting member 230, and the other side of the first clamping member 212 abuts against the inner side wall of the inner circular plate 110. That is, the first retractable member is freely retractable, and when the first retractable member is in an extended state, one end of the first retractable member abuts against one side of the top member, and the top member abuts against the inner side of the inner circular plate to tightly press the inner circular plate.
Further, as shown in fig. 1 to 4, the first telescopic member 211 includes a first threaded connection 211a, a first lead screw 211b, and a second lead screw 211 c; the first end of the first lead screw 211b is in threaded connection with one end of the first threaded connection member 211a, the second end of the first lead screw 211b is abutted against the first tightening member 212, the first end of the second lead screw 211c is in threaded connection with the other end of the first threaded connection member 211a, and the second end of the second lead screw 211c is fixedly connected with the supporting member 230.
It should be noted that, the structure and size of the supporting member are not limited in this example, for example, the supporting member may be a circular ring-shaped seamless steel pipe with a size of phi 1000mm by 20mm, the seamless steel pipe is welded on the tool platform to support, and the surface of the seamless steel pipe is welded to one end of the second lead screw.
Furthermore, as shown in fig. 4, a rotatable driving member 211d is further disposed through the sidewall of the first threaded connector 211a, and when the driving member 211d rotates, the first lead screw 211b and the second lead screw 211c move in opposite directions. That is to say, the screw thread that first lead screw, second lead screw and first threaded connection spare junction set up is reverse screw thread, and first lead screw and second lead screw are the lead screw of two positive and negative silks, and like this, both are reverse movement. For example, when the driving member rotates in the first direction, the first lead screw and the second lead screw both move towards the first threaded connection, i.e. both move inwards, so that the first telescopic member is in a retracted state. When the driving piece rotates along the second direction, the first lead screw and the second lead screw both move towards the direction departing from the first threaded connecting piece, namely both move outwards, so that the first telescopic piece is in an extended state.
It should be understood that the first retractable member is equivalent to an ejector pin, and is formed by welding a positive and negative lead screw and a first threaded connector (e.g., a square nut), similar to the structure of a wire tightener. The lead screws with positive and negative wires are arranged in corresponding square nuts, one end of each lead screw is welded on the surface of a seamless steel tube, a driving piece (for example, a steel tube) is inserted into a hole with the diameter of 20, and the steel tube is rotated to enable the whole lengthened first lead screw and second lead screw with positive and negative wires to extend or contract.
As shown in fig. 1, first top member 212 includes a vertical plate 212a and a plurality of lateral plates 212 b; wherein, the vertical plate 212a is disposed opposite to the inner circular plate 110, and one side of the vertical plate 212a is abutted to the first lead screw 211 b; the plurality of transverse plates 212b are clamped between the vertical plate 121a and the inner circular plate 110, that is, when the inner circular plate is pressed tightly by the first pressing component, the inner circular plate is uniformly stressed by the first pressing component, and the deformation is controlled within an error range.
It should be noted that, in the present embodiment, the size of the standing plate is not specifically limited, and may be set according to the specific size of the inner circular plate, for example, the height of the standing plate is set to 1400mm, and the thickness of the standing plate is set to 20 mm.
It should be further noted that, the number of the transverse plates is not specifically limited in this embodiment, for example, in some embodiments, three transverse plates are arranged in parallel in a direction perpendicular to the inner circular plate and the vertical plate, and the three transverse plates abut against the inner side wall of the inner circular plate, so that the force applied to the inner circular plate is uniform.
It should be understood that, in order to be more fit with the inner side wall of the inner circular plate, the transverse plate should be arranged in an arc structure, that is, the first top member is formed by welding the vertical plate and three transversely welded arc transverse plates, and the first lead screw and the second lead screw are extended by the rotary driving member, so that the first lead screw is tightly propped against the vertical plate.
It should be noted that, the first tightening assembly is equivalent to a tooling fixture for the inner circular plate, and after the first tightening assembly is manufactured, precision control needs to be completed by machining. After the inner circular plate is tightly jacked by the first jacking assembly, the inner circular plate is subjected to circle calibration, specifically, a lifting lug is welded at the vertical plate, the tool is transferred to a vertical lathe by using a lifting appliance to be machined, after machining is completed, the flatness of the upper end and the lower end of the clamp (the upper end and the lower end of the vertical plate or the upper end and the lower end of the three transverse plates) is not more than 1mm, and the verticality of the outer surface of the transverse plate is not more than 0.5 mm. After the inner circular plate is rolled, the inner circular plate is moved to the tooling platform by a lifting appliance and is close to the outer surface of the transverse plate, so that preparation is made for the circle correction of the inner circular plate.
Specifically, in the rounding process of the inner circular plate, the driving piece is rotated to enable the tail end of the first lead screw to extend out and prop against the vertical plate, the upper end of the inner circular plate is aligned with the transverse plate through the guide chain, the lower end of the inner circular plate is propped against the transverse plate through the jack, and the pressure of the oil cylinder and the tension of the guide chain are increased slowly. The verticality and the roundness of the rolling plate are measured at intervals of 20 degrees along the circumferential direction, the pressure of the jack and the tension of the guide chain are continuously adjusted, the verticality of the inner circular plate is measured to be not more than 2mm, the roundness is not more than 3mm, and the quality of circle correction of the inner circular plate is qualified.
It should be further noted that the inner circular plate of this embodiment is formed by three inner circular plates, and correspondingly, the number of first tight subassembly of top is three, and equal interval welds three first scalable piece promptly at the periphery wall of support piece, and every first scalable piece corresponds a first top piece, and every first tight piece of top corresponds the top and has connect an inner circular plate.
It should be noted that, in this embodiment, the length of each first tightening member is not specifically limited, and along the circumferential direction of the inner circular plate, the length of the first tightening member may be the same as the length of each inner circular arc plate, or may be shorter than the length of each inner circular arc plate, as long as the inner circular arc plate is tightened and the force applied to the inner circular arc plate is ensured to be uniform.
Further, because the steel member of plans to process of this embodiment is tube structure, after the inner circular plate is rectified to accomplish qualified, when carrying out the school circle to outer circular plate, need further fix outer circular plate. Specifically, the present embodiment is provided with a connecting plate between the inner circular plate and the outer circular plate.
In the present embodiment, the structure and the number of the link plates are not particularly limited, and for example, a plurality of rectangular link plates are spot-welded at equal intervals along the outer peripheral wall of the inner circular plate, and the outer circular plate is transferred to the platform by a hanger and aligned with the link plates.
Specifically, as shown in fig. 1 to 5, the second tightening member 220 includes at least one second tightening member 221 and at least one second telescopic member 222, each second tightening member 221 is connected to one second telescopic member 222, and when the second telescopic member 222 is in the extended state, the second tightening member 221 is tightened against the outer sidewall of the outer circular plate 120.
Further, as shown in fig. 1 to 5, the second tightening assembly 220 further includes at least one support 223 disposed on the tooling platform, each second extensible member 222 includes a second threaded connector (e.g., a nut) disposed on the corresponding support 223 in a penetrating manner and a third lead screw in threaded connection with the second threaded connector, and a first end of the third lead screw is connected with the second tightening member, that is, the support of this embodiment plays a role in supporting and fixing.
Further, as shown in fig. 5, a first end of the third screw is connected to a third threaded connection member (e.g., a square nut), and the second tightening member 221 includes two arc plates disposed oppositely, and the two arc plates are disposed at a top end and a bottom end of the third threaded connection member, respectively.
It should be noted that, in this embodiment, the number and the size of the second tightening members, the second retractable members, and the brackets included in each second tightening assembly are not particularly limited, and only one second tightening member may be provided to abut against the outer side wall of the outer circular plate, or two, three, or more second tightening members, second retractable members, and brackets may be provided to tighten the outer circular plate by using a plurality of second tightening members.
Illustratively, as shown in fig. 1-3, in some embodiments, each second tightening assembly 220 includes three second tightening members 221, three second extendable members 222, and three brackets 223, i.e., one second extendable member 222 and one bracket 223 for each second tightening member 221.
The outer circular plate of this embodiment comprises three outer circular arc boards, and is corresponding, and the device includes the tight subassembly in three second top, and every second top tight subassembly corresponds an outer circular arc board.
It should be further noted that, in this embodiment, the structure and the size of the bracket are not specifically limited, and the bracket may be specifically configured according to the specific size of the outer circular plate, for example, the bracket is made into a tripod bracket by selecting a rectangular tube with a specification of 500mm × 300mm × 8 mm.
It should be noted that, in the embodiment, how the second threaded connection member and the third lead screw are inserted into the bracket is not particularly limited, for example, holes can be drilled in the outer surface of the rectangular tube of the tripod type bracket structure, a second threaded connecting piece (such as a nut) is aligned and welded with the rectangular tube with the hole, and then a third lead screw is rotationally arranged, a third threaded connecting piece (for example, a square nut) is screwed into the end of the third lead screw and welded on the third lead screw, and a group of second top tightening pieces consisting of two circular arc plates are welded at the two ends of the square nut, namely, one of the arc plates is welded at the upper end of the square nut, the other arc plate is welded at the lower end of the square nut, the outer side wall of the outer circular plate is tightly jacked through the second jacking piece to prepare for correcting the outer circular plate, the lifting appliance is removed, and the third screw rod and the second jacking piece structure at the three-foot support are rotated to jack the outer circular plate.
Further, after the outer circular plate is tightly pressed by the second pressing assembly, the calibration process for the outer circular plate is as follows: the upper end of the outer circular plate is tensioned by the guide chain, the middle of the outer circular plate is tightly propped by the tripod support and the second jacking piece, and the tension of the guide chain and the pressure of the push rod of the tripod support are continuously increased. After a period of time, the roundness and the verticality of the outer circular plate are measured every 20 degrees along the circular arc, the roundness of the outer circular plate is not more than 3mm, the verticality is not more than 2mm, and then the roundness correction of the outer circular plate is qualified.
The utility model provides an annular steel member of super large diameter location forming device has following beneficial effect for prior art: the utility model discloses a set up the first tight subassembly in top of telescopic and the tight subassembly in top of second in order to push up the interior plectane and the excircle board of annular steel component tightly to carry out the school circle respectively to interior plectane and excircle board in proper order, make super large diameter (not less than 4500mm) edge rolling deflection little and steerable in error range, guarantee product quality, and save workman's the amount of labour, promote production efficiency, reduction of erection time.
It is to be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principles of the present invention, and the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. The utility model provides an annular steel member of super large diameter location forming device which characterized in that includes:
a tooling platform;
the first jacking assembly is telescopically arranged on the tooling platform and is positioned on the inner side of the inner circular plate of the annular steel member to be machined, and the first jacking assembly jacks the inner circular plate when in an extending state;
at least one second top tight subassembly, the tight subassembly of second top telescopically sets up just be located the excircle board outside of waiting to process annular steel member on the frock platform, works as the tight subassembly of second top is in the top tightly when extending the state outer plectane.
2. The apparatus of claim 1, wherein the first tightening assembly comprises a first telescoping member and a first tightening member; wherein,
when the first telescopic piece is in an extending state, the first end of the first telescopic piece abuts against one side of the first top tightening piece, and the other side of the first top tightening piece abuts against the inner side wall of the inner circular plate; and the number of the first and second groups,
the center area of the tooling platform is also provided with a supporting piece, and the second end of the first telescopic piece is connected with the supporting piece.
3. The device of claim 2, wherein the first telescopic member comprises a first threaded connecting member, and a first lead screw and a second lead screw which are respectively in threaded connection with two ends of the first threaded connecting member; wherein,
the other end of the first lead screw is abutted against the first puller,
the other end of the second lead screw is fixedly connected with the supporting piece.
4. The device of claim 3, wherein a rotatable driving member is further disposed through a side wall of the first threaded connector, and when the driving member rotates, the first lead screw and the second lead screw move in opposite directions.
5. The apparatus of claim 4, wherein the first puller comprises a vertical plate and a plurality of transverse plates; wherein,
the vertical plate is arranged opposite to the inner circular plate, and one side of the vertical plate is abutted to the first lead screw;
one ends of the transverse plates are connected with the vertical plate, and the other ends of the transverse plates are abutted to the inner circular plate.
6. The apparatus of claim 5, wherein the number of the transverse plates is three, and three transverse plates are arranged in parallel in a direction perpendicular to the inner circular plate and the vertical plate.
7. The apparatus according to any one of claims 1 to 6, wherein the second tightening assembly comprises at least one second tightening member and at least one second retractable member, each of the second tightening members is connected to one of the second retractable members, and when the second retractable member is in the extended state, the second tightening member abuts against the outer sidewall of the outer circular plate.
8. The device according to claim 7, wherein the second tightening assembly further comprises at least one support arranged on the tooling platform, each second telescopic member comprises a second threaded connecting member arranged on the corresponding support in a penetrating manner and a third lead screw in threaded connection with the second threaded connecting member, and a first end of the third lead screw is connected with the second tightening member.
9. The device of claim 8, wherein a third threaded connection member is connected to the first end of the third lead screw, and the second tightening member includes two arc plates disposed opposite to each other, and the two arc plates are disposed at the top end and the bottom end of the third threaded connection member, respectively.
10. The device according to any one of claims 1 to 6, wherein the inner circular plate comprises three inner circular arc plates, the device comprises three first tightening assemblies, and each first tightening assembly corresponds to one inner circular arc plate; and/or the presence of a gas in the atmosphere,
the outer circular arc board includes three outer circular arc board, the device includes the tight subassembly in three second top, every the tight subassembly in second top corresponds one outer circular arc board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202220511456.4U CN216828042U (en) | 2022-03-09 | 2022-03-09 | Super large diameter annular steel member positioning forming device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220511456.4U CN216828042U (en) | 2022-03-09 | 2022-03-09 | Super large diameter annular steel member positioning forming device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114367561A (en) * | 2022-03-09 | 2022-04-19 | 中铁长安重工有限公司 | Positioning and forming device and method for annular steel member with super-large diameter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114367561A (en) * | 2022-03-09 | 2022-04-19 | 中铁长安重工有限公司 | Positioning and forming device and method for annular steel member with super-large diameter |
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