Auxiliary device for welding long-span steel beam

Abstract

The invention relates to the technical field of steel beam welding, and discloses a long-span steel beam welding auxiliary device which comprises a supporting device, a monitoring device, a fulcrum device, a rotary clamping device and an elastic pulling device. According to the elastic pulling device, an elastic pulling support and a T-shaped connecting rod are driven by a first electric push rod to be lifted upwards, the T-shaped connecting rod drives a fulcrum device to slide outwards through the elastic pulling connecting rod to achieve the function of changing the supporting point of the steel beam, and meanwhile the elastic pulling support further drives a first clamping plate and a second clamping plate to be tightened inwards and lifted upwards through a first inhaul cable and a second inhaul cable; therefore, the anti-bending function of the steel beam is realized. According to the rotary clamping device, a rotary clamping rotary disc is manually rotated, so that rotary clamping helical teeth on the inner side of the rotary clamping rotary disc make contact with the outer side of a T-shaped sliding block, the T-shaped sliding block is inwards compressed through the rotary clamping helical teeth, the T-shaped sliding block drives two rotary clamping sliding blocks to oppositely slide on a rotary clamping base through two first connecting rods, and the rotary clamping sliding blocks drive rotary clamping clamps to slide outwards through second connecting rods; and a manual opening function is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of steel beam welding, and particularly relates to an auxiliary device for welding long-span steel beams. Background Art

[0002] During the welding process of steel beams, because the steel beams are slender themselves, they are prone to corresponding bending deformations. At the same time, it is also difficult to align two steel beams by manual alignment methods; when welding the welds of two steel beams, it is often necessary to weld all four edges. Traditional manual welding methods require manually turning the steel beams or welding in different postures, making the welding relatively difficult; therefore, an auxiliary device for steel beam welding is needed to perform a series of auxiliary measures such as aligning, clamping, and anti-bending of two steel beams.

[0003] Most of the support devices in existing steel beam welding auxiliary devices are fixed and cannot flexibly adjust the support position according to the length of the steel beam, which will cause the steel beam to bend and deform due to its own bending moment. At the same time, existing steel beam welding auxiliary devices also lack means for monitoring the degree of bending deformation of the steel beam; most of the clamping devices in existing steel beam welding auxiliary devices are fixed fixtures, and the steel beam cannot be flipped again after being clamped, so workers or machines need to adjust the welding angle by themselves, making the welding relatively difficult and unable to improve the welding performance after welding; therefore, an auxiliary device for welding long-span steel beams that can flexibly adjust the support position according to the length of the steel beam, can automatically monitor the degree of bending deformation of the steel beam, and can also flip and automatically weld the steel bars is needed to solve the deficiencies of existing long-span steel beam welding auxiliary devices.

[0004] For example, the patent with the publication number CN207959985U provides a support device for facilitating the welding of large steel beams. The device includes a neutral rod, a horizontal cross bar, a vertical horizontal bar, side vertical bars, inclined support bars, side cross bars, triangular wedges, and large steel beams. The neutral rod and the side vertical bars are tightly pressed against the flange plate through the triangular wedges to ensure that the web and the flange plate are in close contact and ensure the welding quality. This application has a simple structure and is easy to construct. The height of the web is ensured by the neutral rod, and the flange plate and the side vertical bars are tightly pressed by the triangular wedges to ensure that the web and the flange plate are in close contact, thereby ensuring the welding quality. This solution cannot flexibly adjust the support position according to the length of the steel beam, nor can it synchronously adjust the reverse support force on the steel beam according to the adjusted support position; this solution also cannot automatically monitor the degree of bending deformation of the steel beam; the steel beam in this solution cannot be automatically flipped after welding one side, so workers or machines need to adjust the welding angle, making the welding relatively difficult; this solution also does not have a corresponding clamping and fixing function, which will cause the situation that the steel beams are not aligned during welding. Summary of the Invention

[0005] The object of the present invention is to provide an auxiliary device for welding long-span steel beams, aiming to solve the technical problems existing in the prior art, such as how to flexibly adjust the support position according to the length of the steel beam, how to synchronously adjust the reverse support force on the steel beam according to the adjusted support position, how to automatically monitor the degree of bending deformation of the steel beam, how to clamp and fix the steel beam, and how to align it.

[0006] In view of the above technical problems, the technical solution adopted by the present invention is as follows: An auxiliary device for welding long-span steel beams, including a support device, a monitoring device, a fulcrum device, a rotary clamp device, and an elastic pulling device. The monitoring device is slidably installed on the side of the support device in the horizontal direction, and the monitoring device is used to monitor the bending degree of the steel beam. Six fulcrum devices are respectively slidably installed in the support device in the horizontal direction. Four rotary clamp devices are respectively fixedly installed at the upper end of the support device. Two rotary clamp devices located on one side of the center line of the support device are fixedly connected, and two rotary clamp devices located on the other side of the center line of the support device are fixedly connected. The rotary clamp device includes a T-shaped slider, a first connecting rod, a rotary clamp slider, a second connecting rod, and a rotary clamp fixture. The two ends of the first connecting rod are respectively hinged to the T-shaped slider and one end of the rotary clamp slider. The two ends of the second connecting rod are respectively hinged to the other end of the rotary clamp slider and one side of the rotary clamp fixture. When the T-shaped slider slides outward or inward, the T-shaped slider drives the two rotary clamp sliders to slide away from each other in the circumferential direction through the two first connecting rods. At this time, the two rotary clamp sliders drive the rotary clamp fixture to slide inward or outward through the two second connecting rods, so that the sliding direction of the rotary clamp fixture is exactly opposite to the sliding direction of the T-shaped slider, to realize the clamping and loosening functions of the steel beam.

[0007] Furthermore, the rotary clamp device further includes a rotary clamp turntable, a tightening bolt, a indexing assembly, and a rotary clamp base. The rotary clamp turntable is rotatably connected to the outer cylindrical surface of the indexing assembly. The tightening bolt is tightened on the rotary clamp turntable along the radial direction of the rotary clamp turntable. When the tightening bolt is tightened, the lower end of the tightening bolt will insert into the inside of the indexing assembly. The T-shaped slider slides through the indexing assembly in the radial direction. The rotary clamp slider slides in the circumferential direction on the inner side of the rotary clamp base. The rotary clamp slider is fixedly connected to the rotary clamp base through a spring. The inner cylindrical surface of the indexing assembly is slidably connected to the outer cylindrical surface of the rotary clamp slider. The side of the rotary clamp fixture is also fixedly connected to the indexing assembly. The rotary clamp base is fixedly installed at the upper end of the support device.

[0008] Furthermore, the inner circumferential surface of the rotary clamp turntable is provided with rotary clamp helical teeth, and the inner side of the rotary clamp helical teeth is in frictional contact with the upper end of the T-shaped slider.

[0009] Further, the indexing component includes a first indexing disk, a second indexing disk, indexing struts and limiting slide bars. The first indexing disk is fixedly installed on the periphery of the second indexing disk. The outer circumferential surface of the first indexing disk is rotationally connected to the inner circumferential surface of the clamping turntable. The T-shaped slider slides through the first indexing disk in the radial direction of the first indexing disk. The inner circumferential surface of the second indexing disk is slidably connected to the outer cylindrical surface of the clamping slider. The indexing struts are fixedly installed on the side surface of the second indexing disk. Two adjacent clamping devices are fixedly connected by the indexing struts. The limiting slide bars are slidably installed on the side surface of the second indexing disk in the radial direction of the second indexing disk. The limiting slide bars are also fixedly connected to the side surface of the clamping fixture.

[0010] Further, the elastic pulling device includes an elastic pulling connecting rod, a T-shaped connecting rod, a linkage bracket, an elastic pulling spring, an elastic pulling bracket, a second electric push rod and an elastic pulling slider. The two ends of the elastic pulling connecting rod are respectively hinged to the lower end of the fulcrum device and the lower end of the T-shaped connecting rod. The T-shaped connecting rod is fixedly installed at the lower end of the elastic pulling bracket. The two ends of the linkage bracket are respectively fixedly installed on the side surface of the supporting device and the side surface of the elastic pulling bracket. The lower end of the elastic pulling spring is fixedly installed inside the elastic pulling bracket. The upper end of the elastic pulling spring is fixedly installed at the lower part of the supporting device. The elastic pulling bracket is slidably installed on the side surface of the supporting device in the vertical direction. The second electric push rod is fixedly installed at the upper end of the elastic pulling bracket in the vertical direction. The upper end of the elastic pulling slider is fixedly connected to the output end of the second electric push rod. The elastic pulling slider is slidably installed on the side surface of the elastic pulling bracket in the vertical direction.

[0011] Further, a welding head and a welding switch are arranged on the elastic pulling bracket. The output end of the welding head is perpendicular to the side surface of the steel beam. The welding switch is fixedly installed at the rear end of the welding head.

[0012] Further, the supporting device includes a supporting base, a supporting bottom plate, supporting slide rails, a first electric push rod, an inserting component and a locking slider. The supporting bottom plate is fixedly installed at the upper end of the supporting base. Supporting slide rails are arranged on the supporting bottom plate. Six fulcrum devices are respectively slidably installed inside the supporting slide rails in the horizontal direction. The first electric push rod is fixedly installed on the side surface of the supporting bottom plate in the vertical direction. The output end of the first electric push rod is fixedly connected to the linkage bracket. The inserting component is slidably installed on the supporting bottom plate in the vertical direction. The locking slider is slidably installed on the side surface of the supporting bottom plate in the horizontal direction. The locking slider is inserted into the inside of the clamping base. The locking slider is tightened to the supporting bottom plate by bolts.

[0013] Further, the inserting component includes an inserting spring, a U-shaped inserting rod and an inserting bracket. The upper end of the inserting spring is fixedly installed at the lower end of the supporting bottom plate. The lower end of the inserting spring is fixedly installed at the upper end of the inserting bracket. The U-shaped inserting rod is fixedly installed at the upper end of the inserting bracket. The U-shaped inserting rod is slidably installed inside the supporting bottom plate in the vertical direction. At the same time, the U-shaped inserting rod is inserted around the indexing strut.

[0014] Further, the fulcrum device includes a first cable, a second cable, a first clamping plate, a second clamping plate, a first tension spring, a second tension spring, a fulcrum base, and a fulcrum slider. The upper end of the first cable is fixedly installed at the upper end of the spring pulling bracket, and the lower end of the first cable is fixedly installed at the upper end of the first clamping plate. The upper end of the second cable is fixedly installed at the upper end of the spring pulling bracket, and the lower end of the second cable is fixedly installed at the upper end of the second clamping plate. The lower end of the first clamping plate is slidably installed horizontally at the upper end of the fulcrum base, and the lower end of the second clamping plate is slidably installed horizontally at the upper end of the fulcrum base. The two ends of the first tension spring are respectively fixedly installed on the side surface of the first clamping plate and inside the fulcrum base. The two ends of the second tension spring are respectively fixedly installed on the side surface of the second clamping plate and inside the fulcrum base. The lower end of the fulcrum base is slidably inserted vertically inside the fulcrum slider, and inert gas is stored in the gap between the lower end of the fulcrum base and the inside of the fulcrum slider.

[0015] Further, the monitoring device includes a monitoring display screen, a monitoring camera, a monitoring bracket, and a monitoring slider. The monitoring display screen is fixedly installed at the upper end of the monitoring bracket. An auxiliary straight line segment is provided on the monitoring display screen. The monitoring camera is fixedly installed horizontally at the upper end of the monitoring bracket. The monitoring camera is electrically connected to the monitoring display screen. The monitoring bracket is fixedly installed on the side surface of the monitoring slider. The monitoring slider is slidably installed horizontally on the side surface of the support bottom plate, and the monitoring slider is tightened to the support bottom plate by bolts.

[0016] The beneficial effects of the present invention compared with the prior art are as follows: (1) The spring pulling device drives the spring pulling bracket and the T-shaped connecting rod to lift upward through the first electric push rod. The T-shaped connecting rod drives the fulcrum device to slide outward through the spring pulling connecting rod, realizing the function of changing the support point of the steel beam. At the same time, the spring pulling bracket drives the first clamping plate and the second clamping plate to tighten inward and lift upward through the first cable and the second cable, to realize the function of anti-bending of the steel beam.

[0017] (2) The rotating clamping device rotates the rotating clamping turntable manually, so that the rotating clamping helical teeth inside the rotating clamping turntable contact the outside of the T-shaped slider. The rotating clamping helical teeth compress the T-shaped slider inward. The T-shaped slider drives two rotating clamping sliders to slide away from each other on the rotating clamping base through two first connecting rods respectively. The rotating clamping slider drives the rotating clamping fixture to slide outward through the second connecting rod, to realize the manual opening function.

[0018] When the first electric push rod drives the spring pulling bracket to slide downward to the limit position, the spring pulling bracket will drive the insertion bracket on the insertion component to slide downward. The insertion bracket drives the U-shaped insertion rod to slide downward, so that the U-shaped insertion rod is separated from the rotation position support column, to realize the free rotation of the rotation component. Subsequently, manually drive the rotation component to rotate. The rotation component drives the rotating clamping fixture and the steel beam to rotate through the T-shaped slider and the limit slide bar, so as to facilitate welding of other joints of the steel beam.

[0019] Before the steel beam is clamped, use a marking pen to draw a straight line on the side of the steel beam to mark a horizontal straight line segment. After the steel beam is clamped, first manually move the monitoring slider on the monitoring device to align the monitoring camera with the straight line segment on the side of the steel beam. Tighten the monitoring slider and the support base plate with bolts. Subsequently, the monitoring camera displays the straight line segment on the side of the steel beam on the monitoring display screen. Then, the monitoring display screen compares the straight line segment on the side of the steel beam with the auxiliary straight line segment to judge the downward bending degree of the steel beam, so as to further control the upward pushing distance of the first electric push rod. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the whole of the present invention; Figure 2 It is a schematic structural diagram of the support device in the present invention; Figure 3 It is a schematic structural diagram of the insertion component in the present invention; Figure 4 It is a schematic structural diagram of the monitoring device in the present invention; Figure 5 It is a schematic structural diagram of the fulcrum device in the present invention; Figure 6 It is a schematic structural diagram of the rotation clamping device in the present invention; Figure 7 It is a schematic structural diagram of the rotation position component in the present invention; Figure 8 It is a schematic structural diagram of the spring pulling device in the present invention; Figure 9 It is a schematic assembly structural diagram of the rotation clamping device and the rotation position component in the present invention; Figure 10 It is a schematic assembly structural diagram of the rotation clamping device and the insertion component in the present invention.

[0021] In the figure: 1. Support device; 2. Monitoring device; 3. Fulcrum device; 4. Rotating clamp device; 5. Elastic pulling device; 101. Support base; 102. Support bottom plate; 103. Support slide rail; 104. First electric push rod; 105. Insertion component; 106. Locking slider; 107. Insertion spring; 108. U-shaped insertion rod; 109. Insertion support; 201. Monitoring display screen; 202. Monitoring camera; 203. Monitoring support; 204. Monitoring slider; 301. First cable; 302. Second cable; 303. First clamping plate; 304. Second clamping plate; 305. First tension spring; 306. Second tension spring; 307. Fulcrum base; 308. Fulcrum slider; 401. Rotating clamp turntable; 402. Rotating clamp helical teeth; 403. Tightening bolt; 404. T-shaped slider; 405. First connecting rod; 406. Rotating clamp slider; 407. Indexing component; 408. Second connecting rod; 409. Rotating clamp fixture; 410. Rotating clamp base; 411. First indexing disk; 412. Second indexing disk; 413. Indexing pillar; 414. Limit slide bar; 501. Elastic pulling connecting rod; 502. T-shaped connecting rod; 503. Linkage support; 504. Elastic pulling spring; 505. Elastic pulling support; 506. Second electric push rod; 507. Elastic pulling slider; 508. Welding head; 509. Welding switch. Detailed implementation mode

[0022] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation modes.

[0023] Among them, the accompanying drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation to the present invention; in order to better illustrate the embodiments of the present invention, some components in the accompanying drawings will be omitted, enlarged or reduced, which do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0024] Figures 1 to 10 This is a preferred embodiment of the present invention.

[0025] Such as Figure 1As shown in the figure, a welding auxiliary device for long-span steel beams includes a support device 1, a monitoring device 2, a fulcrum device 3, a rotating clamp device 4, and a spring tension device 5. The monitoring device 2 is slidably installed on the side of the support device 1 in the horizontal direction. The monitoring device 2 is used to monitor the bending degree of the steel beam. Six fulcrum devices 3 are slidably installed in the support device 1 in the horizontal direction respectively. Four rotating clamp devices 4 are fixedly installed at the upper end of the support device 1. A fixed connection is made between the two rotating clamp devices 4 on the right side of the center line of the support device 1, and a fixed connection is made between the two rotating clamp devices 4 on the other side of the center line of the support device 1. The rotating clamp device 4 includes a T-shaped slider 404, a first connecting rod 405, a rotating clamp slider 406, a second connecting rod 408, and a rotating clamp fixture 409. The two ends of the first connecting rod 405 are respectively hinged to one end of the T-shaped slider 404 and the rotating clamp slider 406. The two ends of the second connecting rod 408 are respectively hinged to the other end of the rotating clamp slider 406 and one side of the rotating clamp fixture 409. When the T-shaped slider 404 slides outward or inward, the T-shaped slider 404 will drive the two rotating clamp sliders 406 to slide away from each other in the circumferential direction through the two first connecting rods 405. At this time, the two rotating clamp sliders 406 drive the rotating clamp fixture 409 to slide inward or outward through the two second connecting rods 408, so that the sliding direction of the rotating clamp fixture 409 is exactly opposite to the sliding direction of the T-shaped slider 404, to realize the clamping and loosening functions of the steel beam.

[0026] As Figure 2 shown, in the support device 1, the support device 1 includes a support base 101, a support bottom plate 102, a support slide rail 103, a first electric push rod 104, an insertion component 105, and a locking slider 106. The support bottom plate 102 is fixedly installed at the upper end of the support base 101. A support slide rail 103 is provided on the support bottom plate 102. Six fulcrum devices 3 are slidably installed in the support slide rail 103 in the horizontal direction respectively. The first electric push rod 104 is fixedly installed on the side of the support bottom plate 102 in the vertical direction. The output end of the first electric push rod 104 is fixedly connected to the linkage bracket 503. The insertion component 105 is slidably installed on the support bottom plate 102 in the vertical direction. The locking slider 106 is slidably installed on the side of the support bottom plate 102 in the horizontal direction. The locking slider 106 is inserted into the inside of the rotating clamp base 410, and the locking slider 106 is tightened to the support bottom plate 102 by bolts.

[0027] As Figure 3 and Figure 10As shown, in the insertion component 105, the insertion component 105 includes an insertion spring 107, a U-shaped insertion rod 108, and an insertion bracket 109. The upper end of the insertion spring 107 is fixedly installed at the lower end of the support base plate 102, and the lower end of the insertion spring 107 is fixedly installed at the upper end of the insertion bracket 109. The U-shaped insertion rod 108 is fixedly installed at the upper end of the insertion bracket 109. The U-shaped insertion rod 108 is slidably installed inside the support base plate 102 in the vertical direction, and the U-shaped insertion rod 108 is also inserted around the indexing post 413.

[0028] As Figure 4 shown, in the monitoring device 2, the monitoring device 2 includes a monitoring display screen 201, a monitoring camera 202, a monitoring bracket 203, and a monitoring slider 204. The monitoring display screen 201 is fixedly installed at the upper end of the monitoring bracket 203. An auxiliary straight line segment is provided on the monitoring display screen 201. The monitoring camera 202 is fixedly installed at the upper end of the monitoring bracket 203 in the horizontal direction. The monitoring camera 202 is electrically connected to the monitoring display screen 201. The monitoring bracket 203 is fixedly installed on the side of the monitoring slider 204. The monitoring slider 204 is slidably installed on the side of the support base plate 102 in the horizontal direction. The monitoring slider 204 is tightened to the support base plate 102 by bolts.

[0029] As Figure 5 shown, in the fulcrum device 3, the fulcrum device 3 includes a first cable 301, a second cable 302, a first splint 303, a second splint 304, a first tension spring 305, a second tension spring 306, a fulcrum base 307, and a fulcrum slider 308. The upper end of the first cable 301 is fixedly installed at the upper end of the elastic pulling bracket 505, and the lower end of the first cable 301 is fixedly installed at the upper end of the first splint 303. The upper end of the second cable 302 is fixedly installed at the upper end of the elastic pulling bracket 505, and the lower end of the second cable 302 is fixedly installed at the upper end of the second splint 304. The lower end of the first splint 303 is slidably installed at the upper end of the fulcrum base 307 in the horizontal direction. The lower end of the second splint 304 is slidably installed at the upper end of the fulcrum base 307 in the horizontal direction. The two ends of the first tension spring 305 are respectively fixedly installed on the side of the first splint 303 and inside the fulcrum base 307. The two ends of the second tension spring 306 are respectively fixedly installed on the side of the second splint 304 and inside the fulcrum base 307. The lower end of the fulcrum base 307 is slidably inserted into the inside of the fulcrum slider 308, and an inert gas is stored in the gap between the lower end of the fulcrum base 307 and the inside of the fulcrum slider 308.

[0030] As Figure 6As shown, in the clamping device 4, the clamping device 4 includes a clamping turntable 401, a tightening bolt 403, a indexing component 407, and a clamping base 410. The clamping turntable 401 is rotatably connected to the outer cylindrical surface of the indexing component 407. The tightening bolt 403 is tightened on the clamping turntable 401 along the radial direction of the clamping turntable 401. When the tightening bolt 403 is tightened, the lower end of the tightening bolt 403 will insert into the interior of the indexing component 407. The T-shaped slider 404 slides radially through the indexing component 407. The clamping slider 406 slides circumferentially on the inner side of the clamping base 410. The clamping slider 406 is fixedly connected to the clamping base 410 through a spring. The inner cylindrical surface of the indexing component 407 is slidably connected to the outer cylindrical surface of the clamping slider 406. The side surface of the clamping fixture 409 is also fixedly connected to the indexing component 407. The clamping base 410 is fixedly installed at the upper end of the support device 1. On the inner circumferential surface of the clamping turntable 401, there are clamping helical teeth 402, and the inner side of the clamping helical teeth 402 is in frictional contact with the upper end of the T-shaped slider 404.

[0031] As Figure 7 and Figure 9 shown, in the indexing component 407, the indexing component 407 includes a first indexing disk 411, a second indexing disk 412, indexing struts 413, and limit slide bars 414. The first indexing disk 411 is fixedly installed on the periphery of the second indexing disk 412. The outer circumferential surface of the first indexing disk 411 is rotatably connected to the inner circumferential surface of the clamping turntable 401. The T-shaped slider 404 slides radially through the first indexing disk 411. The inner circumferential surface of the second indexing disk 412 is slidably connected to the outer cylindrical surface of the clamping slider 406. The indexing struts 413 are fixedly installed on the side surface of the second indexing disk 412. Adjacent clamping devices 4 are fixedly connected through the indexing struts 413. The limit slide bars 414 are slidably installed on the side surface of the second indexing disk 412 along the radial direction of the second indexing disk 412, and the limit slide bars 414 are also fixedly connected to the side surface of the clamping fixture 409.

[0032] As Figure 8As shown in the figure, in the elastic pulling device 5, the elastic pulling device 5 includes an elastic pulling connecting rod 501, a T-shaped connecting rod 502, a linkage bracket 503, an elastic pulling spring 504, an elastic pulling bracket 505, a second electric push rod 506, and an elastic pulling slider 507. The two ends of the elastic pulling connecting rod 501 are respectively hinged to the lower end of the fulcrum device 3 and the lower end of the T-shaped connecting rod 502. The T-shaped connecting rod 502 is fixedly installed at the lower end of the elastic pulling bracket 505. The two ends of the linkage bracket 503 are respectively fixedly installed on the side surface of the support device 1 and the side surface of the elastic pulling bracket 505. The lower end of the elastic pulling spring 504 is fixedly installed inside the elastic pulling bracket 505, and the upper end of the elastic pulling spring 504 is fixedly installed at the lower part of the support device 1. The elastic pulling bracket 505 is slidably installed on the side surface of the support device 1 in the vertical direction. The second electric push rod 506 is fixedly installed at the upper end of the elastic pulling bracket 505 in the vertical direction. The upper end of the elastic pulling slider 507 is fixedly connected to the output end of the second electric push rod 506. The elastic pulling slider 507 is slidably installed on the side surface of the elastic pulling bracket 505 in the vertical direction. A welding head 508 and a welding switch 509 are provided on the elastic pulling bracket 505. The output end of the welding head 508 is perpendicular to the side surface of the steel beam, and the welding switch 509 is fixedly installed at the rear end of the welding head 508.

[0033] The working principle of the present invention: Figure 1 The usage mode and corresponding scenarios of the present invention are given. For the welding of long-span steel beams and the attitude control during the auxiliary support process, it is determined by the support device 1, the rotary clamping device 4, and the elastic pulling device 5. The attitude of the support device 1 is determined by the rotary clamping device 4, and the attitude of the rotary clamping device 4 is determined by the elastic pulling device 5. Therefore, the elastic pulling device 5 is the core of the welding and auxiliary support of long-span steel beams.

[0034] Taking the preferred embodiment as an example, first manually rotate the clamping turntable 401 on the clamping device 4 so that the clamping helical teeth 402 inside the clamping turntable 401 contact the upper end of the T-shaped slider 404. At this time, the clamping helical teeth 402 squeeze the T-shaped slider 404 inward, causing the T-shaped slider 404 to slide inward. The T-shaped slider 404 drives the two clamping sliders 406 to slide away from each other on the clamping base 410 through two first connecting rods 405 respectively. The clamping slider 406 drives the clamping fixture 409 to slide outward through the second connecting rod 408 to realize the manual opening function. Insert the two steel beams into the space between the first clamping plate 303 and the second clamping plate 304 of the fulcrum device 3 from both ends of the support bottom plate 102 respectively, and then insert them into the space between the clamping fixtures 409 from between the first clamping plate 303 and the second clamping plate 304. Subsequently, manually release the clamping turntable 401. The spring on the clamping turntable 401 drives the two clamping sliders 406 to slide towards each other on the clamping base 410. At this time, the clamping slider 406 drives the clamping fixture 409 to slide inward through the second connecting rod 408, so that the clamping fixtures 409 clamp the steel beam together. Then tighten the tightening bolt 403 to prevent the loosening of the clamping fixture 409 and the rotation of the clamping turntable 401. After the clamping fixture 409 clamps the steel beam, the first electric push rod 104 on the support device 1 drives the elastic pulling bracket 505 and the T-shaped connecting rod 502 on the elastic pulling device 5 to lift upward. The T-shaped connecting rod 502 drives the fulcrum device 3 to slide outward on the support slide rail 103 through the elastic pulling connecting rod 501 to realize the function of changing the support point of the steel beam. At the same time, the elastic pulling bracket 505 also drives the first clamping plate 303 and the second clamping plate 304 to tighten inward and lift upward through the first cable 301 and the second cable 302, causing the steel beam to bend upward reversely to realize the function of reverse bending of the steel beam. During the process of the first cable 301 and the second cable 302 pulling the first clamping plate 303 and the second clamping plate 304, the first tension spring 305 and the second tension spring 306 on the fulcrum base 307 also drive the first clamping plate 303 and the second clamping plate 304 to clamp inward to realize the auxiliary support and clamping function; when the elastic pulling bracket 505 slides upward, the insertion spring 107 drives the U-shaped insertion rod 108 and the insertion bracket 109 to slide upward by its own elastic force, so that the U-shaped insertion rod 108 is inserted into the rotation support column 413 of the rotation component 407, thereby completely locking the rotation component 407; when the first electric push rod 104 drives the elastic pulling bracket 505 to slide downward to the limit position, the elastic pulling bracket 505 drives the insertion bracket 109 on the insertion component 105 to slide downward, and the insertion bracket 109 drives the U-shaped insertion rod 108 to slide downward, so that the U-shaped insertion rod 108 is separated from the rotation support column 413 to realize the free rotation of the rotation component 407. Subsequently, manually drive the rotation component 407 to rotate, and the rotation component 407 drives the clamping fixture 409 and the steel beam to rotate through the T-shaped slider 404 and the limit slide rod 414, so as to facilitate the welding of other joints of the steel beam.

[0035] Specifically, such asFigure 2 , Figure 3 , Figure 5 , Figure 8 and Figure 10 As shown, after the rotary clamping fixture 409 clamps the steel beam, the first electric push rod 104 on the side of the support base plate 102 drives the elastic pulling bracket 505 and the T-shaped connecting rod 502 to lift upward through the linkage bracket 503. The T-shaped connecting rod 502 drives the fulcrum slider 308 to slide outward on the support slide rail 103 through the elastic pulling connecting rod 501, and the fulcrum slider 308 drives the fulcrum base 307 to slide outward to realize the function of changing the support point of the steel beam; the elastic pulling bracket 505 drives the first clamping plate 303 and the second clamping plate 304 to tighten inward and lift upward through the first cable 301 and the second cable 302. The first clamping plate 303 and the second clamping plate 304 drive the fulcrum base 307 to slide upward, causing the steel beam to bend upward reversely to realize the function of reverse bending the steel beam; during the process of the first cable 301 and the second cable 302 pulling the first clamping plate 303 and the second clamping plate 304, the first tension spring 305 and the second tension spring 306 on the fulcrum base 307 will drive the first clamping plate 303 and the second clamping plate 304 to clamp inward to realize the functions of auxiliary support and clamping; when the elastic pulling bracket 505 slides upward, the insertion spring 107 drives the U-shaped insertion rod 108 and the insertion bracket 109 to slide upward by its own elastic force, so that the U-shaped insertion rod 108 is inserted into the rotation support column 413 of the rotation component 407, thereby completely locking the rotation component 407; when the first electric push rod 104 drives the elastic pulling bracket 505 to slide downward to the limit position, the elastic pulling bracket 505 will drive the insertion bracket 109 on the insertion component 105 to slide downward, and the insertion bracket 109 drives the U-shaped insertion rod 108 to slide downward, so that the U-shaped insertion rod 108 is disengaged from the rotation support column 413 to realize the free rotation of the rotation component 407; the support base 101 is used for fixedly installing the support base plate 102; after the locking slider 106 is inserted into the rotary clamping base 410, manually tighten the bolt on the locking slider 106 to realize the function of fixing the rotary clamping base 410; when welding the contact points of the two steel beams, the second electric push rod 506 drives the elastic pulling slider 507 to slide up and down, and the elastic pulling slider 507 drives the welding head 508 to slide up and down. Press the welding switch 509, and the welding head 508 will weld the contact points of the two steel beams; and the elastic pulling spring 504 is used to drive the elastic pulling bracket 505 to return downward.

[0036] As Figure 4As shown, before the steel beam is clamped, it is necessary to use a marking pen to make a straight mark on the side of the steel beam to mark a horizontal straight line segment. After the steel beam is clamped, first manually move the monitoring slider 204 to align the monitoring camera 202 on the monitoring bracket 203 with the straight line segment on the side of the steel beam, and then tighten the monitoring slider 204 and the support base plate 102 with bolts. Subsequently, the monitoring camera 202 will display the straight line segment on the side of the steel beam on the monitoring display screen 201. Then, the monitoring display screen 201 will compare the straight line segment on the side of the steel beam with the auxiliary straight line segment to judge the downward bending degree of the steel beam, so as to further control the upward pushing distance of the first electric push rod 104.

[0037] As Figure 6 , Figure 7 and Figure 9 shown, first manually rotate the clamping turntable 401 on the clamping device 4 so that the clamping helical teeth 402 inside the clamping turntable 401 contact the upper end of the T-shaped slider 404. At this time, the clamping helical teeth 402 squeeze the T-shaped slider 404 inward, causing the T-shaped slider 404 to slide inward. The T-shaped slider 404 drives the two clamping sliders 406 to slide away from each other on the clamping base 410 through two first connecting rods 405 respectively. The clamping slider 406 drives the clamping fixture 409 to slide outward through the second connecting rod 408 to realize the manual opening function; insert the two steel beams into the space between the first clamping plate 303 and the second clamping plate 304 of the fulcrum device 3 from both ends of the support base plate 102 respectively, and then insert them into the space between the clamping fixtures 409. Subsequently, manually loosen the clamping turntable 401. The spring on the clamping turntable 401 drives the two clamping sliders 406 to slide towards each other on the clamping base 410. At this time, the clamping slider 406 drives the clamping fixture 409 to slide inward through the second connecting rod 408, so that the clamping fixtures 409 clamp the steel beam together. Then tighten the tightening bolt 403 to prevent the loosening of the clamping fixture 409 and the rotation of the clamping turntable 401; when the indexing assembly 407 can rotate freely, manually hold the indexing pillar 413 on the indexing assembly 407, and then drive the first indexing disk 411 and the second indexing disk 412 to rotate through the indexing pillar 413. The first indexing disk 411 and the second indexing disk 412 drive the clamping fixture 409 and the steel beam to rotate synchronously through the T-shaped slider 404 and the limit slide rod 414 respectively, so as to facilitate the welding of other joints of the steel beam.

[0038] The present invention is not limited to the above specific embodiments. Those skilled in the art can make various changes starting from the above concepts without creative labor, and all fall within the protection scope of the present invention.

Claims

1. A welding auxiliary device for long-span steel beams, comprising a support device (1), a monitoring device (2), a fulcrum device (3), a rotating clamping device (4), and an elastic pulling device (5), characterized in that: The monitoring device (2) is slidably mounted horizontally on the side of the support device (1). The monitoring device (2) is used to monitor the bending degree of the steel beam. Six fulcrum devices (3) are respectively slidably mounted horizontally inside the support device (1). Four clamping devices (4) are respectively fixedly mounted on the upper end of the support device (1). Two clamping devices (4) located on one side of the center line of the support device (1) are fixedly connected between them. Two clamping devices (4) located on the other side of the center line of the support device (1) are fixedly connected between them. The clamping device (4) includes a T-shaped slider (404), a first connecting rod (405), a clamping slider (406), a second connecting rod (408) and a clamping fixture (409). The two ends of the first connecting rod (405) are respectively hinged to one end of the T-shaped slider (404) and the clamping slider (406). The two ends of the second connecting rod (408) are respectively hinged to the other end of the clamping slider (406) and one side of the clamping fixture (409). When the T-shaped slider (404) slides outwards or inwards, the T-shaped slider (404) drives the two clamping sliders (406) to slide away from each other in the circumferential direction through the two first connecting rods (405). At this time, the two clamping sliders (406) drive the clamping fixture (409) to slide inwards or outwards through the two second connecting rods (408), so that the sliding direction of the clamping fixture (409) is exactly opposite to the sliding direction of the T-shaped slider (404), to realize the clamping and loosening functions of the steel beam.

2. The auxiliary device for welding long-span steel beams according to claim 1, characterized in that: The clamping device (4) further includes a clamping turntable (401), a tightening bolt (403), a indexing component (407) and a clamping base (410). The clamping turntable (401) is rotatably connected to the outer cylindrical surface of the indexing component (407). The tightening bolt (403) is tightened on the clamping turntable (401) along the radial direction of the clamping turntable (401). When the tightening bolt (403) is tightened, the lower end of the tightening bolt (403) will insert into the inside of the indexing component (407). The T-shaped slider (404) slides through the indexing component (407) along the radial direction. The clamping slider (406) is slidably mounted on the inner side of the clamping base (410) along the circumferential direction. The clamping slider (406) is fixedly connected to the clamping base (410) through a spring. The inner cylindrical surface of the indexing component (407) is slidably connected to the outer cylindrical surface of the clamping slider (406). The side surface of the clamping fixture (409) is also fixedly connected to the indexing component (407). The clamping base (410) is fixedly mounted on the upper end of the support device (1).

3. The auxiliary device for welding long-span steel beams according to claim 2, wherein: Clamping helical teeth (402) are provided on the inner circumferential surface of the clamping turntable (401). The inner side of the clamping helical teeth (402) is in frictional contact with the upper end of the T-shaped slider (404).

4. The auxiliary device for welding long-span steel beams according to claim 3, wherein: The indexing component (407) includes a first indexing disk (411), a second indexing disk (412), indexing struts (413) and limit slide bars (414). The first indexing disk (411) is fixedly installed on the periphery of the second indexing disk (412). The outer circumferential surface of the first indexing disk (411) is rotationally connected to the inner circumferential surface of the clamping turntable (401). The T-shaped slider (404) slides through the first indexing disk (411) in the radial direction of the first indexing disk (411). The inner circumferential surface of the second indexing disk (412) is slidably connected to the outer cylindrical surface of the clamping slider (406). The indexing struts (413) are fixedly installed on the side surface of the second indexing disk (412). Adjacent two clamping devices (4) are fixedly connected by the indexing struts (413). The limit slide bars (414) are slidably installed on the side surface of the second indexing disk (412) in the radial direction of the second indexing disk (412). The limit slide bars (414) are also fixedly connected to the side surface of the clamping fixture (409).

5. The welding auxiliary device for long-span steel beams according to claim 4, characterized in that: The elastic pulling device (5) includes an elastic pulling connecting rod (501), a T-shaped connecting rod (502), a linkage bracket (503), an elastic pulling spring (504), an elastic pulling bracket (505), a second electric push rod (506) and an elastic pulling slider (507). The two ends of the elastic pulling connecting rod (501) are respectively hinged to the lower end of the fulcrum device (3) and the lower end of the T-shaped connecting rod (502). The T-shaped connecting rod (502) is fixedly installed at the lower end of the elastic pulling bracket (505). The two ends of the linkage bracket (503) are respectively fixedly installed on the side surface of the support device (1) and the side surface of the elastic pulling bracket (505). The lower end of the elastic pulling spring (504) is fixedly installed inside the elastic pulling bracket (505). The upper end of the elastic pulling spring (504) is fixedly installed at the lower part of the support device (1). The elastic pulling bracket (505) is slidably installed on the side surface of the support device (1) in the vertical direction. The second electric push rod (506) is fixedly installed at the upper end of the elastic pulling bracket (505) in the vertical direction. The upper end of the elastic pulling slider (507) is fixedly connected to the output end of the second electric push rod (506). The elastic pulling slider (507) is slidably installed on the side surface of the elastic pulling bracket (505) in the vertical direction.

6. The welding auxiliary device for long-span steel beams according to claim 5, wherein: A welding head (508) and a welding switch (509) are provided on the elastic pulling bracket (505). The output end of the welding head (508) is perpendicular to the side surface of the steel beam. The welding switch (509) is fixedly installed at the rear end of the welding head (508).

7. The welding auxiliary device for long-span steel beams according to claim 6, characterized in that: The support device (1) includes a support base (101), a support bottom plate (102), a support slide rail (103), a first electric push rod (104), an insertion component (105), and a locking slider (106). The support bottom plate (102) is fixedly installed at the upper end of the support base (101). A support slide rail (103) is provided on the support bottom plate (102). Six fulcrum devices (3) are respectively slidably installed inside the support slide rail (103) in the horizontal direction. The first electric push rod (104) is fixedly installed on the side of the support bottom plate (102) in the vertical direction. The output end of the first electric push rod (104) is fixedly connected to the linkage bracket (503). The insertion component (105) is slidably installed on the support bottom plate (102) in the vertical direction. The locking slider (106) is slidably installed on the side of the support bottom plate (102) in the horizontal direction. The locking slider (106) is inserted into the inside of the rotary clamp base (410), and the locking slider (106) is tightened to the support bottom plate (102) by bolts.

8. The welding auxiliary device for long-span steel beams according to claim 7, wherein: The insertion component (105) includes an insertion spring (107), a U-shaped insertion rod (108), and an insertion bracket (109). The upper end of the insertion spring (107) is fixedly installed at the lower end of the support bottom plate (102). The lower end of the insertion spring (107) is fixedly installed at the upper end of the insertion bracket (109). The U-shaped insertion rod (108) is fixedly installed at the upper end of the insertion bracket (109). The U-shaped insertion rod (108) is slidably installed inside the support bottom plate (102) in the vertical direction. At the same time, the U-shaped insertion rod (108) is inserted around the indexing post (413).

9. The welding auxiliary device for long-span steel beams according to claim 8, wherein: The fulcrum device (3) includes a first cable (301), a second cable (302), a first clamping plate (303), a second clamping plate (304), a first tension spring (305), a second tension spring (306), a fulcrum base (307), and a fulcrum slider (308). The upper end of the first cable (301) is fixedly installed at the upper end of the elastic pulling bracket (505). The lower end of the first cable (301) is fixedly installed at the upper end of the first clamping plate (303). The upper end of the second cable (302) is fixedly installed at the upper end of the elastic pulling bracket (505). The lower end of the second cable (302) is fixedly installed at the upper end of the second clamping plate (304). The lower end of the first clamping plate (303) is slidably installed on the upper end of the fulcrum base (307) in the horizontal direction. The lower end of the second clamping plate (304) is slidably installed on the upper end of the fulcrum base (307) in the horizontal direction. The two ends of the first tension spring (305) are respectively fixedly installed on the side of the first clamping plate (303) and inside the fulcrum base (307). The two ends of the second tension spring (306) are respectively fixedly installed on the side of the second clamping plate (304) and inside the fulcrum base (307). The lower end of the fulcrum base (307) is slidably inserted into the inside of the fulcrum slider (308), and an inert gas is stored in the gap between the lower end of the fulcrum base (307) and the inside of the fulcrum slider (308).

10. A welding assistance device for long-span steel beams as described in claim 9, characterized in that: The monitoring device (2) includes a monitoring display screen (201), a monitoring camera (202), a monitoring bracket (203), and a monitoring slider (204). The monitoring display screen (201) is fixedly installed at the upper end of the monitoring bracket (203). An auxiliary straight line segment is provided on the monitoring display screen (201). The monitoring camera (202) is fixedly installed at the upper end of the monitoring bracket (203) in the horizontal direction. The monitoring camera (202) is electrically connected to the monitoring display screen (201). The monitoring bracket (203) is fixedly installed on the side surface of the monitoring slider (204). The monitoring slider (204) is slidably installed in the horizontal direction on the side surface of the support bottom plate (102). The monitoring slider (204) is tightened to the support bottom plate (102) by bolts.

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