CN110614476A - Steel construction panel tailor welding levelling device - Google Patents
Steel construction panel tailor welding levelling device Download PDFInfo
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- CN110614476A CN110614476A CN201911039984.3A CN201911039984A CN110614476A CN 110614476 A CN110614476 A CN 110614476A CN 201911039984 A CN201911039984 A CN 201911039984A CN 110614476 A CN110614476 A CN 110614476A
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- fulcrum
- bar
- prying
- steel structure
- leveling device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a splicing welding leveling device for a steel structure panel, relates to the technical field of steel structure engineering, and is mainly used for solving the problems of large workload, large loss, low efficiency and the like in the splicing welding process of the existing steel structure panel. The device mainly comprises a prying bar, a fulcrum connecting plate, a rotary force application mechanism and the like, wherein one end of the prying bar is a pressure head, the other end of the prying bar is a sleeve, and a prying fulcrum is arranged at one side of the middle of the prying bar close to the pressure head. The splicing welding leveling device for the steel structure panel, provided by the invention, can greatly reduce temporary construction measures, reduce the workload of welding, cutting, cleaning and polishing materials for the temporary measures, improve the splicing welding leveling efficiency of the steel structure panel, reduce the production cost and ensure the splicing quality.
Description
Technical Field
The invention relates to the technical field of steel structure engineering, in particular to a splicing welding leveling device for a steel structure panel.
Background
At present, when a large steel structure unit is assembled, the panel splicing welding leveling of the large steel structure unit generally adopts the following process flow: firstly, additionally welding an inverted L-shaped steel plate at the splicing position of a panel to be leveled, welding the root part of the inverted L-shaped steel plate on a low panel, enabling the plate surface of the inverted L-shaped steel plate to be perpendicular to a splicing seam, and enabling the upper part of the inverted L-shaped steel plate to cross the splicing seam and extend to the position above the high panel; then, arranging a jack on the high panel, placing the jack below the extension part of the L-shaped plate, and leveling the two panels by jacking the inverted L-shaped plate; then welding a clamping plate to fix the leveled splicing area (a welding through hole for welding is reserved on the clamping plate), then detaching the jack, cutting off the inverted L-shaped plate, and replacing the adjacent area to be leveled with the next area to be leveled to repeat leveling operation; after the splicing seams of the whole panel are leveled, the panel is uniformly welded, all the clamping plates are cut after the welding is finished, and the residual welding scars on the panel surface are polished to be smooth.
Therefore, the tailor-welded leveling method needs to repeatedly weld and cut off the temporary steel plate and polish the weld craters, and has the advantages of large material loss, large workload, complex process, low efficiency, large rigidity of a steel structure at the lower part of the panel, large force required by the leveling of the panel, high requirement on specification and model of the used jack, large leveling difficulty, time and labor consumption. Therefore, a large steel structure panel tailor welding leveling device capable of solving the defects is urgently needed at present.
Disclosure of Invention
The invention aims to provide a steel structure panel tailor-welding leveling device which can greatly reduce the workload of welding, cutting, cleaning and polishing temporary measure materials, improve the tailor-welding leveling efficiency of the steel structure panel, reduce the production cost and ensure the splicing quality.
In order to achieve the purpose, the invention provides a steel structure panel tailor-welding leveling device which mainly comprises a prying rod, a fulcrum connecting plate and a rotary force application mechanism, wherein one end of the prying rod is provided with a pressure head, the other end of the prying rod is provided with a sleeve, and a prying fulcrum is arranged in the middle of the prying rod and close to one side of the pressure head.
As a further improvement of the invention, the indenter has a curved arc-shaped configuration.
As a further improvement of the invention, the sleeve is of a circular tube structure with an arc-shaped bottom.
As a further improvement of the invention, the prying fulcrum is a double-lug clamping plate; the fulcrum connecting plate is a single lug plate, and the bottom of the fulcrum connecting plate is welded with the reference steel plate; the fulcrum connecting plate is connected with the prying fulcrum in an embedded mode and is hinged to the prying fulcrum connecting plate through a pin shaft.
As a further improvement of the invention, the rotary force application mechanism comprises a loop bar nut, a rotary screw rod and an extension rod, wherein the rotary screw rod penetrates through a sleeve at the end part of the prying bar and is connected with the loop bar nut to form a group of bolts with coordinated screw threads.
As a further improvement of the invention, the loop bar nut comprises a door-shaped part and a nut part, the door-shaped part is sleeved on the bar body of the pry bar, the nut part is contacted with the arc-shaped surface at the bottom of the sleeve, and the loop bar nut can swing left and right on the bar body along with the penetration of the rotating screw rod.
As a further improvement of the invention, the upper end of the rotary screw is provided with a twisting handle for controlling the axial rotation of the rotary screw; the extension bar is provided with a bent-up part which is sleeved on a twisting handle on the upper part of the rotary screw rod, and the power-assisted rotary screw rod axially rotates.
As a further improvement of the invention, the distance from the prying fulcrum to the pressure head is L, and the distance from the prying fulcrum to the rotating screw is nL.
Advantageous effects
Compared with the prior art, the steel structure panel tailor-welding leveling device has the advantages that:
1. according to the invention, the prying fulcrum on the prying rod is hinged with the fulcrum connecting plate to form a lever structure with two ends capable of swinging up and down and opposite swinging directions. Along with the jacking action of the rotary force application mechanism, the pressure head of the pry bar moves downwards to apply a downward acting force to the steel plates to be leveled, so that the splicing edges of the two steel plates are gradually positioned on the same horizontal plane, and the purpose of leveling the splicing seams of the steel plates is achieved. The device gives consideration to leveling and temporary fixing, only the fulcrum connecting plate needs to be welded, fixed and cut off temporarily, and the rest is a tool type device which can be repeatedly used, so that the material loss is greatly reduced. Meanwhile, the workload of welding, cutting and polishing of the temporary plate can be greatly reduced, and the tailor-welding efficiency is improved.
2. The pressure head is a bent arc-shaped structure. The structure not only has stronger bearing capacity, but also can greatly reduce the distance between the pressure head and the steel plate to be leveled, thereby being convenient for leveling operation.
3. The prying fulcrum is a double-lug clamping plate, the fulcrum connecting plate is a single-lug plate, the bottom of the fulcrum connecting plate is welded with the reference steel plate, and the prying fulcrum is inserted and then is hinged with the reference steel plate through a pin shaft. Through round pin axle, can quick assembly disassembly levelling device.
4. The rotary force application mechanism comprises three parts, namely a loop bar nut, a rotary screw and an extension bar, wherein the rotary screw penetrates through a sleeve at the end part of the prying bar and is connected with the loop bar nut to form a group of bolts with coordinated screw threads; the rotating screw rod is in clearance fit with the sleeve. The upper end of the rotary screw is provided with a twisting handle for controlling the rotary screw to rotate axially; the extension bar is provided with a bent-up part which can be sleeved on a twisting handle on the upper part of the rotary screw rod, and the power-assisted rotary screw rod axially rotates. Utilize lever principle, can reduce the extrusion force that the pinch bar pressure head needs twice by a wide margin through pinch bar and extension bar, need not to use the jack, and but manually operation, convenient and fast, it is efficient.
5. The loop bar nut has door type portion and nut portion, and its door type portion cover is even on the pole body of pinch bar, and its nut portion contacts with sleeve pipe bottom arcwall face, and the loop bar nut can be along with the penetration of rotatory screw rod horizontal hunting on the pole body, and the mobility that the loop bar nut needs when can satisfying the lifting of pinch bar sleeve pipe for whole rotatory application of force mechanism can normal operating.
6. The distance from the prying fulcrum to the pressure head is L, the distance from the prying fulcrum to the rotating screw is nL (n is a natural number not less than 2), and the vertical distance between the prying fulcrum and a reference steel plate (a lower steel plate) is h. Through quantitative calculation and accurate correction, the maximum leveling amount and the maximum leveling force of the leveling device can be calibrated according to the values of L, n and h (in combination with the specification and the size of other parts), and the effect of accurate leveling is further achieved.
The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings, which illustrate embodiments of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a perspective view of the pry bar of the present invention;
FIG. 4 is a perspective view of the rotary screw and loop bar nut combination of the present invention;
FIG. 5 is a perspective view of the fulcrum connection plate of the present invention;
FIG. 6 is a view showing the installation state of the device before leveling according to the present invention;
fig. 7 is a leveling completion state diagram of the present invention.
Wherein: 1-a pry bar; 11-a pressure head; 12-a sleeve; 13-prying the fulcrum; 14-a shaft; 2-a fulcrum connecting plate; 3-a rotary force application mechanism; 31-a shank nut; 32-rotating the screw; 33-extension bar; 311-gate type part; 4-a pin shaft; 5-steel plate to be leveled; 6-standard steel plate.
Detailed Description
Embodiments of the present invention will now be described with reference to the accompanying drawings.
Examples
The specific implementation mode of the invention is shown in figures 1-7, and the splicing welding leveling device for the steel structure panel comprises a pry bar 1 crossing a steel plate splicing seam. The reference steel plate 6, namely the lower steel plate, is provided with a fulcrum connecting plate 2 which is hinged with a prying fulcrum 13 on the prying rod 1. One end of the pry bar 1 is provided with a pressure head 11 for applying an acting force to the steel plate 5 to be leveled, i.e., a high steel plate. The other end of the pry bar 1 is provided with a sleeve 12 for connecting the rotary force application mechanism 3.
A prying fulcrum 13 on the prying rod 1 is hinged to the fulcrum connecting plate 2, so that a lever structure with two ends capable of swinging up and down and opposite swinging directions is formed. Along with the jacking action of the rotary force application mechanism 3, the pressure head 11 of the pry bar 1 moves downwards to apply a downward acting force to the steel plate 5 to be leveled, so that the splicing edges of the steel plate 5 to be leveled and the reference steel plate 6 are gradually positioned on the same horizontal plane, and the purpose of leveling the splicing seams of the steel plates is achieved. The device gives consideration to leveling and temporary fixing, only the fulcrum connecting plate 2 needs to be welded, fixed and cut off temporarily, and the rest is a tool type device which can be repeatedly used, so that the material loss is greatly reduced. Meanwhile, the workload of welding, cutting and polishing of the temporary plate can be greatly reduced, and the tailor-welding efficiency is improved.
Moreover, the prying fulcrum 13 is a double-lug clamping plate, the fulcrum connecting plate 2 is a single-lug plate, the bottom of the fulcrum connecting plate 2 is connected with the reference steel plate 6 in a welding mode, and the fulcrum connecting plate 2 is hinged to the prying fulcrum 13 through the pin shaft 4 after being inserted into the prying fulcrum 13. Through round pin axle 4, can quick assembly disassembly levelling device. The rotary force application mechanism 3 comprises three parts of a loop bar nut 31, a rotary screw rod 32 and an extension bar 33, wherein the rotary screw rod 32 penetrates through a sleeve 12 at the end part of the pry bar 1 to be connected with the loop bar nut 31 to form a group of bolts with coordinated screw threads. The rotating screw 32 is in clearance fit with the sleeve 12. The upper end of the rotary screw 32 is provided with a twist handle for controlling the axial rotation thereof, and the extension bar 33 is provided with a bent-up portion. The bent-up portion can be sleeved on a twist handle at the upper portion of the rotary screw 32, and the rotary screw 32 is assisted to rotate axially. Utilize lever principle, can reduce the extrusion force that pinch bar pressure head 11 needs twice by a wide margin through pinch bar 1 and extension bar 33, need not to use the jack, and but manually operation, convenient and fast, it is efficient.
Meanwhile, the pressure head 11 in the embodiment is of a curved arc-shaped structure, and the structure not only has stronger bearing capacity, but also can greatly reduce the distance between the pressure head 11 and the steel plate 5 to be leveled, and is convenient for leveling operation. The loop bar nut 31 has a gate portion 311 and a nut portion, wherein the gate portion 311 is connected to the shaft of the pry bar 1, and the nut portion is in contact with the bottom arc surface of the sleeve 12. The loop bar nut 31 can swing left and right on the bar body 14 along with the penetration of the rotating screw 32, and the movement amount required by the loop bar nut 31 when the sleeve 12 of the pry bar 1 is lifted can be met, so that the whole rotating force application mechanism 3 can normally operate.
It should be noted that:
in this embodiment, the distance from the prying fulcrum 13 to the ram 11 is L, and the distance from the prying fulcrum 13 to the rotary screw 32 or the sleeve 12 is nL. Wherein n is a natural number not less than 2. The vertical distance between the prying fulcrum 13 and the reference steel plate 6, i.e., the lower steel plate, is h. Through quantitative calculation and accurate correction, the maximum leveling amount and the maximum leveling force of the leveling device can be calibrated according to the values of L, n and h and by combining the specification sizes of other parts, so that the effect of accurate leveling is achieved.
In this embodiment, the use method of the leveling device specifically includes:
firstly, screwing the rotary screw rod 32 upwards to ensure that at least one screw thread is reserved at the lower end of the rotary screw rod 32 and the bottom end of the loop bar nut 31 for threaded connection, and installing a leveling device at a position with a large height difference in an area to be leveled;
secondly, the h value when actually installed in place is not suitable to exceed the limit leveling amount h of the leveling devicemaxIn order to avoid influencing leveling operation, the steel structure needs to be leveled, the h value is rechecked, and a proper leveling device is selected to weld the fulcrum connecting plate 2 on a reference steel plate 6, namely a low steel plate;
thirdly, screwing the rotating screw rod 32 downwards or screwing the rotating screw rod 32 through the extension bar 33, leveling the steel plate 5 to be leveled and the reference steel plate 6 gradually, and pulling out the extension bar 33 after the two steel plates are leveled;
and fourthly, resetting the leveling device and leveling according to the steps until the splicing seam of the whole steel structure panel is leveled. The distance between adjacent leveling devices is determined according to actual conditions, when the leveling amount and the leveling force are large, the distance between adjacent leveling devices is small, otherwise, the distance is large;
fifthly, after the splicing seams of the whole panel are leveled, welding is carried out uniformly, after welding is finished, the leveling devices are detached one by one, finally the fulcrum connecting plates 2 are cut off, and the craters are polished to be flat.
The present invention has been described in connection with the preferred embodiments, but the present invention is not limited to the embodiments disclosed above, and is intended to cover various modifications, equivalent combinations, which are made in accordance with the spirit of the present invention.
Claims (8)
1. The utility model provides a steel construction panel tailor-welding levelling device which characterized in that, includes pinch bar (1), fulcrum connecting plate (2), rotatory application of force mechanism (3), wherein pinch bar (1) one end is pressure head (11), and the other end is sleeve pipe (12), it moves fulcrum (13) to lean on pressure head one side to be provided with the sled in the middle of pinch bar (1).
2. The tailor welded leveling device of steel structural panels according to claim 1, wherein the pressing head (11) is a curved arc structure.
3. The tailor-welded leveling device for steel structure panels according to claim 1, wherein said sleeve (12) is a circular tube structure with an arc-shaped bottom.
4. The tailor welding leveling device for the steel structure panel according to claim 1, wherein the prying fulcrum (13) is a double-lug clamping plate; the fulcrum connecting plate (2) is a single lug plate, and the bottom of the fulcrum connecting plate is welded with the reference steel plate (6); the fulcrum connecting plate (2) is connected with the prying fulcrum (13) in an embedded mode and is hinged to the prying fulcrum connecting plate through a pin shaft (4).
5. The tailor welding leveling device of steel structure panel according to claim 1, wherein the rotation forcing mechanism (3) comprises a loop bar nut (31), a rotation screw (32), and an extension bar (33), the rotation screw (32) passes through a sleeve (12) at the end of the pry bar (1) and is connected with the loop bar nut (31) to form a set of bolt with coordinated screw threads.
6. The tailor welding leveling device of steel structure panel according to claim 5, wherein said sleeve nut (31) comprises a gate portion (311) and a nut portion, said gate portion (311) is sleeved on the bar body (14) of the pry bar (1), said nut portion is contacted with the bottom arc surface of the sleeve (12).
7. The tailor-welded leveling device for steel structural panels according to claim 5, wherein a twist handle for controlling the axial rotation of the rotary screw (32) is provided at the upper end of the rotary screw; the extension bar (33) is provided with a bent-up part which is sleeved on a twisting handle on the upper part of the rotary screw rod (32).
8. The tailor welding leveling device of steel structure panel according to claim 1, wherein the distance from the prying fulcrum (13) to the pressure head (11) is L, and the distance from the prying fulcrum (13) to the rotating screw (32) is nL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911039984.3A CN110614476A (en) | 2019-10-29 | 2019-10-29 | Steel construction panel tailor welding levelling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911039984.3A CN110614476A (en) | 2019-10-29 | 2019-10-29 | Steel construction panel tailor welding levelling device |
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| Publication Number | Publication Date |
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| CN110614476A true CN110614476A (en) | 2019-12-27 |
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| CN201911039984.3A Pending CN110614476A (en) | 2019-10-29 | 2019-10-29 | Steel construction panel tailor welding levelling device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250915A (en) * | 2020-03-23 | 2020-06-09 | 中国五冶集团有限公司 | Steel plate butt joint device |
| CN114109031A (en) * | 2021-12-02 | 2022-03-01 | 湖南五新建筑科技有限公司 | Mold closing tool for steel frame template column mold and mold closing method thereof |
| CN114277684A (en) * | 2021-12-30 | 2022-04-05 | 武船重型工程股份有限公司 | Leveling device and method for steel structure bridge panel |
-
2019
- 2019-10-29 CN CN201911039984.3A patent/CN110614476A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250915A (en) * | 2020-03-23 | 2020-06-09 | 中国五冶集团有限公司 | Steel plate butt joint device |
| CN114109031A (en) * | 2021-12-02 | 2022-03-01 | 湖南五新建筑科技有限公司 | Mold closing tool for steel frame template column mold and mold closing method thereof |
| CN114277684A (en) * | 2021-12-30 | 2022-04-05 | 武船重型工程股份有限公司 | Leveling device and method for steel structure bridge panel |
| CN114277684B (en) * | 2021-12-30 | 2023-09-05 | 武船重型工程股份有限公司 | Leveling device and method for steel structure bridge panel |
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