An auxiliary device for welding long-span steel beams

Abstract

The present invention relates to the technical field of steel beam welding, and discloses an auxiliary device for long-span steel beam welding, comprising a supporting device, a monitoring device, a fulcrum device, a clamping device, and a spring-pull device. The spring-pull device drives the spring-pull bracket and the T-type connecting rod to lift upward through a first electric push rod, and the T-type connecting rod drives the fulcrum device to slide outward through the spring-pull connecting rod to achieve the function of changing the support point of the steel beam. At the same time, the spring-pull bracket also drives the first and second clamps to tighten inward and pull upward through the first and second cables to achieve the function of reverse bending of the steel beam. The clamping device manually rotates the clamping turntable so that the clamping bevel teeth on the inner side of the clamping turntable contact with the outer side of the T-type slider. The clamping bevel teeth compress the T-type slider inward. The T-type slider drives the two clamping sliders to slide back to each other on the clamping base through the two first connecting rods. The clamping slider drives the clamp fixture to slide outward through the second connecting rod to achieve the manual opening function.

Description

Technical Field

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

[0002] During the welding process of steel beams, due to the slenderness of the steel beams themselves, corresponding bending deformation is easily generated. At the same time, it is difficult to align the two steel beams by manual alignment. When welding the welds of two steel beams, it is often necessary to weld all four edges. The traditional manual welding method requires manual flipping of the steel beams or welding in different postures, making welding more difficult. Therefore, a steel beam welding auxiliary device is required to align, clamp, and reverse the bending of the two steel beams and take a series of auxiliary measures.

[0003] The supporting devices in the existing steel beam welding auxiliary devices are mostly fixed, and the supporting parts cannot be flexibly adjusted 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, the existing steel beam welding auxiliary devices also lack a means to monitor the degree of bending deformation of the steel beam; the clamping devices in the existing steel beam welding auxiliary devices are mostly fixed clamps, and the steel beam cannot be flipped again after clamping, so workers or machines need to adjust the welding angle themselves, which makes welding more difficult and cannot improve the welding performance after welding; therefore, there is a need for a long-span steel beam welding auxiliary device that can flexibly adjust the supporting parts according to the length of the steel beam, automatically monitor the degree of bending deformation of the steel beam, flip the steel bars and automatically weld, so as to solve the shortcomings of the existing long-span steel beam welding auxiliary devices.

[0004] For example, patent publication number CN207959985U provides a support device for facilitating the welding of large steel beams. The device includes a central rod, horizontal horizontal rods, vertical horizontal rods, side rods, diagonal support rods, side horizontal rods, triangular wedges, and a large steel beam. The central rod and side rods are pressed against the flange plates via triangular wedges, ensuring close contact between the web and flange plates, thus ensuring welding quality. This application has a simple structure and is easy to construct. The central rod ensures the height of the web, and the triangular wedges press the flange plates against the side rods, ensuring close contact between the web and flange plates, thereby ensuring welding quality. However, 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 based on 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 automatically flip after welding one side, requiring workers or machines to adjust the welding angle, making welding more difficult. This solution also lacks a corresponding clamping and fixing function, which can cause the steel beam to become misaligned during welding. Summary of the Invention

[0005] The purpose of the present invention is to provide an auxiliary device for welding long-span steel beams, which aims to solve technical problems existing in the existing technology, such as how to flexibly adjust the supporting position according to the length of the steel beam, how to synchronously adjust the reverse supporting force of the steel beam according to the adjusted supporting position, how to realize automatic monitoring of the degree of bending deformation of the steel beam, and how to clamp, fix and align the steel beam.

[0006] In response to the above technical problems, the technical solution adopted by the present invention is: an auxiliary device for welding long-span steel beams, comprising a supporting device, a monitoring device, a fulcrum device, a clamping device, and a spring-pull device. The monitoring device is slidably mounted on the side of the supporting device in the horizontal direction. The monitoring device is used to monitor the bending degree of the steel beam. Six fulcrum devices are slidably mounted inside the supporting device in the horizontal direction. Four clamping devices are fixedly mounted on the upper end of the supporting device. Two clamping devices located on one side of the center line of the supporting device are fixedly connected to each other, and two clamping devices located on the other side of the center line of the supporting device are fixedly connected to each other. The clamping device includes a T-shaped slider, a first connecting rod, a clamping slider, a second connecting rod and a clamping fixture. The two ends of the first connecting rod are respectively hinged to the T-shaped slider and one end of the clamping slider, and the two ends of the second connecting rod are respectively hinged to the other end of the clamping slider and one side of the clamping fixture. When the T-shaped slider slides outward or inward, the T-shaped slider drives the two clamping sliders to slide in opposite directions along the circumferential direction through the two first connecting rods. At this time, the two clamping sliders drive the clamping fixture to slide inward or outward through the two second connecting rods, so that the sliding direction of the clamping fixture is exactly opposite to the sliding direction of the T-shaped slider, thereby realizing the clamping and releasing functions of the steel beam.

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

[0008] Furthermore, the inner circumferential surface of the rotary clamp disc is provided with rotary clamp bevel teeth, and the inner sides of the rotary clamp bevel teeth are in frictional contact with the upper end of the T-shaped slider.

[0009] Furthermore, the indexing assembly includes a first indexing disk, a second indexing disk, an indexing pillar and a limiting slide. 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 rotatably connected to the inner circumferential surface of the rotary clamping disk. The T-shaped slider slides along the radial direction of the first indexing disk and is penetrated by the first indexing disk. The inner circumferential surface of the second indexing disk is slidably connected to the outer cylindrical surface of the rotary clamping slider. The indexing pillar is fixedly installed on the side of the second indexing disk. The two adjacent rotary clamping devices are fixedly connected by the indexing pillar. The limiting slide is slidably installed on the side of the second indexing disk along the radial direction of the second indexing disk. The limiting slide is also fixedly connected to the side of the rotary clamping fixture.

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

[0011] Furthermore, a welding head and a welding switch are provided on the elastic-pull bracket, the output end of the welding head is perpendicular to the side of the steel beam, and the welding switch is fixedly installed at the rear end of the welding head.

[0012] Furthermore, the supporting device includes a supporting base, a supporting bottom plate, a supporting slide rail, a first electric push rod, an insertion assembly and a locking slider. The supporting bottom plate is fixedly installed on the upper end of the supporting base, and a supporting slide rail is provided on the supporting bottom plate. The six fulcrum devices are respectively slidably installed inside the supporting slide rail in the horizontal direction. The first electric push rod is fixedly installed on the side 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 insertion assembly is slidably installed on the supporting bottom plate in the vertical direction. The locking slider is slidably installed on the side of the supporting bottom plate in the horizontal direction. The locking slider is inserted into the inside of the rotary clamp base, and the locking slider is tightened to the supporting bottom plate by bolts.

[0013] Furthermore, the insertion assembly includes an insertion spring, a U-shaped insertion rod and an insertion bracket. The upper end of the insertion spring is fixedly installed on the lower end of the support base plate, the lower end of the insertion spring is fixedly installed on the upper end of the insertion bracket, the U-shaped insertion rod is fixedly installed on the upper end of the insertion bracket, and the U-shaped insertion rod is slidably installed inside the support base plate in the vertical direction. At the same time, the U-shaped insertion rod is inserted into the periphery of the transfer pillar.

[0014] Furthermore, the fulcrum device includes a first cable, a second cable, a first clamp, a second clamp, a first tensioning spring, a second tensioning spring, a fulcrum base and a fulcrum slider, the upper end of the first cable is fixedly mounted on the upper end of the elastic bracket, the lower end of the first cable is fixedly mounted on the upper end of the first clamp, the upper end of the second cable is fixedly mounted on the upper end of the elastic bracket, the lower end of the second cable is fixedly mounted on the upper end of the second clamp, the lower end of the first clamp is slidably mounted on the upper end of the fulcrum base along the horizontal direction, the lower end of the second clamp is slidably mounted on the upper end of the fulcrum base along the horizontal direction, the two ends of the first tensioning spring are respectively fixedly mounted on the side surface of the first clamp and the inside of the fulcrum base, the two ends of the second tensioning spring are respectively fixedly mounted on the side surface of the second clamp and the inside of the fulcrum base, the lower end of the fulcrum base is slidably inserted into the inside of the fulcrum slider along the vertical direction, and inert gas is stored in the gap between the lower end of the fulcrum base and the inside of the fulcrum slider.

[0015] Furthermore, 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 on 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 on the upper end of the monitoring bracket in the horizontal direction. The monitoring camera is electrically connected to the monitoring display screen. The monitoring bracket is fixedly installed on the side of the monitoring slider. The monitoring slider is slidably installed on the side of the support base plate in the horizontal direction. The monitoring slider is tightened to the support base plate by bolts.

[0016] The beneficial effects of the present invention compared with the prior art are:

[0017] (1) The elastic-pull device drives the elastic-pull bracket and the T-type connecting rod to lift upward through the first electric push rod. The T-type connecting rod drives the fulcrum device to slide outward through the elastic-pull connecting rod, thereby realizing the function of changing the support point of the steel beam. At the same time, the elastic-pull bracket drives the first and second splints to tighten inward and pull upward through the first and second cables to realize the function of anti-bending the steel beam.

[0018] (2) The clamping device is to manually rotate the clamping turntable so that the clamping bevel teeth on the inner side of the clamping turntable contact with the outer side of the T-shaped slider. The clamping bevel teeth compress the T-shaped slider inward. The T-shaped slider drives the two clamping sliders to slide back to each other on the clamping base through the two first connecting rods. The clamping slider drives the clamp fixture to slide outward through the second connecting rod to realize the manual opening function.

[0019] (3) When the first electric push rod drives the elastic bracket to slide downward to the limit position, the elastic bracket will drive the insertion bracket on the insertion assembly to slide downward, and the insertion bracket will drive the U-shaped insertion rod to slide downward, so that the U-shaped insertion rod is out of contact with the transfer pillar to achieve the free rotation of the transfer assembly. Then the transfer assembly is manually driven to rotate, and the transfer assembly drives the rotary clamp and the steel beam to rotate through the T-shaped slider and the limit slide rod, thereby facilitating the welding of other joints of the steel beam.

[0020] (4) Before the steel beam is clamped, a straight line is marked on the side of the steel beam with a marking pen to mark a horizontal straight line segment. After the steel beam is clamped, the monitoring slider on the monitoring device is manually moved to align the monitoring camera with the straight line segment on the side of the steel beam. The monitoring slider is tightened to the supporting base plate by bolts. The monitoring camera then displays the straight line segment on the side of the steel beam on the monitoring display screen. The monitoring display screen then compares the straight line segment on the side of the steel beam with the auxiliary straight line segment to determine the degree of downward bending of the steel beam, thereby further controlling the upward push distance of the first electric push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0022] Figure 2 Schematic diagram of the structure of the support device in the present invention;

[0023] Figure 3 Schematic diagram of the structure of the plug assembly in the present invention;

[0024] Figure 4 Schematic diagram of the structure of the monitoring device in the present invention;

[0025] Figure 5 Schematic diagram of the structure of the fulcrum device in the present invention;

[0026] Figure 6 Schematic diagram of the structure of the clamping device in the present invention;

[0027] Figure 7 Schematic diagram of the structure of the transfer assembly in the present invention;

[0028] Figure 8 It is a structural schematic diagram of the bullet pulling device of the present invention;

[0029] Figure 9 Schematic diagram of the assembly structure of the rotary clamping device and the indexing assembly in the present invention;

[0030] Figure 10 It is a schematic diagram of the assembly structure of the rotary clamp device and the plug-in component in the present invention.

[0031] In the figure: 1. Support device; 2. Monitoring device; 3. Fulcrum device; 4. Clamping device; 5. Elastic pulling device; 101. Support base; 102. Support bottom plate; 103. Support slide rail; 104. First electric push rod; 105. Insertion assembly; 106. Locking slider; 107. Insertion spring; 108. U-shaped insertion rod; 109. Insertion bracket; 201. Monitoring display screen; 202. Monitoring camera; 203. Monitoring bracket; 204. Monitoring slider; 301. First cable; 302. Second cable; 303. First clamping plate; 304. Second clamping plate; 305. First tensioning spring; 306. Second tensioning spring; 307. Support Point base; 308, fulcrum slider; 401, rotary clamp disk; 402, rotary clamp bevel teeth; 403, tightening bolt; 404, T-shaped slider; 405, first connecting rod; 406, rotary clamp slider; 407, indexing assembly; 408, second connecting rod; 409, rotary clamp fixture; 410, rotary clamp base; 411, first indexing disk; 412, second indexing disk; 413, indexing pillar; 414, limiting slide; 501, elastic connecting rod; 502, T-shaped connecting rod; 503, linkage bracket; 504, elastic spring; 505, elastic bracket; 506, second electric push rod; 507, elastic slider; 508, welding head; 509, welding switch. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0033] Among them, the accompanying drawings are only for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the dimensions of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the accompanying drawings.

[0034] Figures 1 to 10 It is a preferred embodiment of the present invention.

[0035] like Figure 1As shown, an auxiliary device for welding long-span steel beams includes a support device 1, a monitoring device 2, a fulcrum device 3, a clamping device 4, and a spring-pull device 5. The monitoring device 2 is slidably mounted 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. The six fulcrum devices 3 are slidably mounted inside the support device 1 in the horizontal direction. The four clamping devices 4 are fixedly mounted on the upper end of the support device 1. The two clamping devices 4 on the right side of the center line of the support device 1 are fixedly connected, and the two clamping devices 4 on the other side of the center line of the support device 1 are fixedly connected. The clamping device 4 includes a T-shaped slider 404, a first connecting rod 405, a clamping slider 406, a first connecting rod 407, a clamping slider 408, a first connecting rod 409, a first connecting rod 410, a first connecting rod 411, a first connecting rod 412, a first connecting rod 413, a first connecting rod 414, a first connecting rod 415, a first connecting rod 416, a first connecting rod 417, a first connecting rod 418, a first connecting rod 419, a first connecting rod 420, a first connecting rod 421, a first connecting rod 422, a first connecting rod 423, a first connecting rod 424, a first connecting rod 425, a first connecting rod 426, a first connecting rod 427, a first connecting rod 428, a first connecting rod 429, a first connecting rod 430, a first connecting rod 431, a first connecting rod 432, a first connecting rod 433, a first connecting rod 434, a first connecting rod 435, a first connecting rod 436, a first connecting rod 43 Two connecting rods 408 and a rotary clamp 409, the two ends of the first connecting rod 405 are respectively hinged to the T-shaped slider 404 and one end of the rotary clamp slider 406, and the two ends of the second connecting rod 408 are respectively hinged to the other end of the rotary clamp slider 406 and one side of the rotary clamp clamp 409. When the T-shaped slider 404 slides outward or inward, the T-shaped slider 404 will drive the two rotary clamp sliders 406 to slide in opposite directions along the circumferential direction through the two first connecting rods 405. At this time, the two rotary clamp sliders 406 drive the rotary clamp clamp 409 to slide inward or outward through the two second connecting rods 408, so that the sliding direction of the rotary clamp clamp 409 is exactly opposite to the sliding direction of the T-shaped slider 404, thereby realizing the clamping and releasing functions of the steel beam.

[0036] like Figure 2 As shown, in the support device 1, the support device 1 includes a support base 101, a support base plate 102, a support slide rail 103, a first electric push rod 104, an insertion assembly 105 and a locking slider 106. The support base plate 102 is fixedly installed at the upper end of the support base 101, and a support slide rail 103 is provided on the support base plate 102. The six fulcrum devices 3 are respectively slidably installed on the inside of the support slide rail 103 in the horizontal direction, and the first electric push rod 104 is fixedly installed on the side of the support base 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 assembly 105 is slidably installed on the support base plate 102 in the vertical direction, and the locking slider 106 is slidably installed on the side of the support base plate 102 in the horizontal direction. The locking slider 106 is inserted into the inside of the clamp base 410, and the locking slider 106 is tightened to the support base plate 102 by bolts.

[0037] like 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 mounted on the lower end of the support base 102, the lower end of the insertion spring 107 is fixedly mounted on the upper end of the insertion bracket 109, the U-shaped insertion rod 108 is fixedly mounted on the upper end of the insertion bracket 109, the U-shaped insertion rod 108 is slidably mounted in the vertical direction inside the support base 102, and the U-shaped insertion rod 108 is also inserted into the periphery of the transfer pillar 413.

[0038] like Figure 4 As 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 mounted on 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 mounted on 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 mounted on the side of the monitoring slider 204. The monitoring slider 204 is slidably mounted 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.

[0039] like Figure 5 As shown, in the fulcrum device 3, 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 tensioning spring 305, a second tensioning spring 306, a fulcrum base 307 and a fulcrum slider 308. The upper end of the first cable 301 is fixedly mounted on the upper end of the elastic bracket 505, the lower end of the first cable 301 is fixedly mounted on the upper end of the first clamping plate 303, the upper end of the second cable 302 is fixedly mounted on the upper end of the elastic bracket 505, the lower end of the second cable 302 is fixedly mounted on the upper end of the second clamping plate 304, and the lower end of the first clamping plate 303 is fixedly mounted on the upper end of the elastic bracket 505. The first end of the second clamping plate 303 is mounted on the upper end of the fulcrum base 307 for sliding in the horizontal direction, the lower end of the second clamping plate 304 is mounted on the upper end of the fulcrum base 307 for sliding in the horizontal direction, the two ends of the first tensioning spring 305 are respectively fixed on the side of the first clamping plate 303 and the inside of the fulcrum base 307, the two ends of the second tensioning spring 306 are respectively fixed on the side of the second clamping plate 304 and the inside of the fulcrum base 307, the lower end of the fulcrum base 307 is slidably inserted into the inside of the fulcrum slider 308 along the vertical direction, and inert gas is stored in the gap between the lower end of the fulcrum base 307 and the inside of the fulcrum slider 308.

[0040] like Figure 6As shown in the figure, in the clamping device 4, the clamping device 4 includes a clamping turntable 401, a tightening bolt 403, a rotation assembly 407 and a clamping base 410. The clamping turntable 401 is rotatably connected to the outer cylindrical surface of the rotation assembly 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 is inserted into the interior of the rotation assembly 407. The T-shaped slider 404 slides in the radial direction and penetrates the rotation assembly 407. The clamping slide The block 406 is slidably installed on the inner side of the rotary clamp base 410 along the circumferential direction, the rotary clamp slider 406 is fixedly connected to the rotary clamp base 410 by a spring, the inner cylindrical surface of the rotation component 407 is slidably connected to the outer cylindrical surface of the rotary clamp slider 406, the side of the rotary clamp fixture 409 is also fixedly connected to the rotation component 407, and the rotary clamp base 410 is fixedly installed on the upper end of the support device 1; the inner circumferential surface of the rotary clamp turntable 401 is provided with rotary clamp bevel teeth 402, and the inner side of the rotary clamp bevel teeth 402 is in friction contact with the upper end of the T-shaped slider 404.

[0041] like Figure 7 and Figure 9 As shown, in the indexing assembly 407, the indexing assembly 407 includes a first indexing disk 411, a second indexing disk 412, an indexing pillar 413 and a limiting slide 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 rotary clamping disk 401. The T-shaped slider 404 slides along the radial direction of the first indexing disk 411 and is penetrated by 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 rotary clamping slider 406. The indexing pillar 413 is fixedly installed on the side of the second indexing disk 412. The two adjacent rotary clamping devices 4 are fixedly connected through the indexing pillar 413. The limiting slide 414 is slidably installed on the side of the second indexing disk 412 along the radial direction of the second indexing disk 412. The limiting slide 414 is also fixedly connected to the side of the rotary clamping fixture 409.

[0042] like Figure 8As shown, in the elastic-pull device 5, the elastic-pull device 5 includes an elastic-pull connecting rod 501, a T-shaped connecting rod 502, a linkage bracket 503, an elastic-pull spring 504, an elastic-pull bracket 505, a second electric push rod 506 and an elastic-pull slider 507. The two ends of the elastic-pull 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 mounted on the lower end of the elastic-pull bracket 505. The two ends of the linkage bracket 503 are respectively fixedly mounted on the side of the supporting device 1 and the side of the elastic-pull bracket 505. The lower end of the elastic-pull spring 504 is fixedly mounted on the inside of the elastic-pull bracket 505. The upper end of the spring 504 is fixedly installed on the lower part of the support device 1, the elastic bracket 505 is slidably installed on the side of the support device 1 in the vertical direction, the second electric push rod 506 is fixedly installed on the upper end of the elastic bracket 505 in the vertical direction, the upper end of the elastic slider 507 is fixedly connected to the output end of the second electric push rod 506, and the elastic slider 507 is slidably installed on the side of the elastic bracket 505 in the vertical direction. A welding head 508 and a welding switch 509 are provided on the elastic bracket 505. The output end of the welding head 508 is perpendicular to the side of the steel beam, and the welding switch 509 is fixedly installed at the rear end of the welding head 508.

[0043] Working principle of the present invention: Figure 1 The usage and corresponding scenarios of the present invention are given. The posture control of the welding and auxiliary support process of long-span steel beams is determined by the support device 1, the clamping device 4 and the elastic-pull device 5. The posture of the support device 1 is determined by the clamping device 4, and the posture of the clamping device 4 is determined by the elastic-pull device 5. Therefore, the elastic-pull device 5 is the core of the welding and auxiliary support of long-span steel beams.

[0044] Taking the preferred embodiment as an example, first manually rotate the clamping turntable 401 on the clamping device 4 so that the clamping bevel teeth 402 on the inner side of the clamping turntable 401 contact the upper end of the T-shaped slider 404. At this time, the clamping bevel 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 back to each other on the clamping base 410 through the two first connecting rods 405. The clamping sliders 406 drive the clamping fixture 409 to slide outward through the second connecting rod 408 to realize the manual opening function. The two steel beams are respectively inserted from the two ends of the supporting base plate 102 between the first clamping plate 303 and the second clamping plate 304 of the fulcrum device 3, and then the first clamping plate 303 and the second clamping plate 304 are opened. 4 is inserted between the rotary clamps 409, and then the rotary clamp disk 401 is manually loosened. The spring on the rotary clamp disk 401 drives the two rotary clamp sliders 406 to slide toward each other on the rotary clamp base 410. At this time, the rotary clamp slider 406 drives the rotary clamp clamp 409 to slide inward through the second connecting rod 408, so that the rotary clamp clamp 409 clamps the steel beam together. Then the tightening bolt 403 is tightened to prevent the rotary clamp clamp 409 from loosening and the rotary clamp disk 401 from rotating. After the rotary clamp clamp 409 clamps the steel beam, the first electric push rod 104 on the supporting device 1 drives the elastic bracket 505 and the T-type connecting rod 502 on the elastic pulling device 5 to lift upward, and the T-type connecting rod 502 drives the fulcrum device 3 on the supporting slide rail 103 through the elastic pulling connecting rod 501. When the spring-pull bracket 505 slides upward, the first clamping plate 303 and the second clamping plate 304 are tightened inward and pulled upward by the first cable 301 and the second cable 302, so that the steel beam is bent upward to achieve the function of bending the steel beam backward. In 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 tensioning spring 305 and the second tensioning spring 306 on the fulcrum base 307 will also drive the first clamping plate 303 and the second clamping plate 304 to clamp inward to achieve the auxiliary support and clamping functions. When the spring-pull bracket 505 slides upward, the insertion spring 107 drives the U-shaped insertion rod 108 and the insertion bracket 108 by its own elastic force. 09 slides upward, so that the U-shaped insertion rod 108 is inserted into the transfer pillar 413 of the transfer component 407, thereby completely locking the transfer component 407; when the first electric push rod 104 drives the elastic bracket 505 to slide downward to the limit position, the elastic 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 out of contact with the transfer pillar 413, to achieve the free rotation of the transfer component 407, and then manually drive the transfer component 407 to rotate, and the transfer component 407 drives the rotary clamp 409 and the steel beam to rotate through the T-shaped slider 404 and the limit slide rod 414, thereby facilitating the welding of other joints of the steel beam.

[0045] Specifically, such as Figure 2 、 Figure 3 、 Figure 5 、 Figure 8 and Figure 10 As shown, after the rotary clamp 409 clamps the steel beam, the first electric push rod 104 on the side of the support base plate 102 drives the elastic bracket 505 and the T-shaped connecting rod 502 to lift upward through the linkage bracket 503, and the T-shaped connecting rod 502 drives the fulcrum slider 308 to slide outward on the support slide rail 103 through the elastic 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 bracket 505 drives the first clamping plate 303 and the second clamping plate 304 to tighten inward through the first cable 301 and the second cable 302 When the first and second cables 301 and 302 pull the first and second clamping plates 303 and 304, the first tensioning springs 305 and the second tensioning springs 306 on the fulcrum base 307 drive the first and second clamping plates 303 and 304 to clamp inwards, thereby achieving auxiliary support and clamping functions. When the elastic bracket 505 slides upward, the insertion spring 107 drives the first and second clamping plates 303 and 304 to clamp inwards, thereby achieving auxiliary support and clamping functions. The U-shaped insertion rod 108 and the insertion bracket 109 slide upward, so that the U-shaped insertion rod 108 is inserted into the indexing pillar 413 of the indexing component 407, thereby completely locking the indexing component 407; when the first electric push rod 104 drives the elastic bracket 505 to slide downward to the limit position, the elastic 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 out of contact with the indexing pillar 413, thereby realizing the free rotation of the indexing component 407; support The base 101 is used to fix the support base plate 102; after the locking slider 106 is inserted into the clamp base 410, the bolts on the locking slider 106 are manually tightened to fix the clamp base 410; when welding the contact points of the two steel beams, the second electric push rod 506 drives the elastic slider 507 to slide up and down, and the elastic 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 spring 504 is used to drive the elastic bracket 505 to return to its position downward.

[0046] like Figure 4As shown, before the steel beam is clamped, it is necessary to use a marking pen to mark a straight line on the side of the steel beam to mark a horizontal straight line segment. After the steel beam is clamped, the monitoring slider 204 is manually moved 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 the monitoring slider 204 is tightened to the supporting base plate 102 by bolts. The monitoring camera 202 will then display the straight line segment on the side of the steel beam on the monitoring display screen 201, and 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 determine the degree of downward bending of the steel beam, thereby further controlling the upward push distance of the first electric push rod 104.

[0047] like Figure 6 、 Figure 7 and Figure 9 As shown, first manually rotate the clamping turntable 401 on the clamping device 4 so that the clamping bevel teeth 402 on the inner side of the clamping turntable 401 contact the upper end of the T-shaped slider 404. At this time, the clamping bevel teeth 402 squeeze the T-shaped slider 404 inward, so that the T-shaped slider 404 slides inward, and the T-shaped slider 404 drives the two clamping sliders 406 to slide back to each other on the clamping base 410 through the two first connecting rods 405. The clamping sliders 406 drive the clamping fixture 409 to slide outward through the second connecting rod 408 to realize the manual opening function; insert the two steel beams from the two ends of the supporting base plate 102 into the first clamping plate 303 and the second clamping plate 304 of the fulcrum device 3, and then insert them into the clamping fixture 409 from between the first clamping plate 303 and the second clamping plate 304, and then manually release the clamping turntable 4. 01, the spring on the clamp turntable 401 drives the two clamp sliders 406 to slide toward each other on the clamp base 410. At this time, the clamp slider 406 drives the clamp fixture 409 to slide inward through the second connecting rod 408, so that the clamp fixture 409 clamps the steel beam together, and then the tightening bolt 403 is tightened to prevent the clamp fixture 409 from loosening and the clamp turntable 401 from rotating; when the indexing component 407 can rotate freely, manually hold the indexing pillar 413 on the indexing component 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 respectively drive the clamp fixture 409 and the steel beam to rotate synchronously through the T-shaped slider 404 and the limiting slide bar 414, thereby facilitating the welding of other joints of the steel beam.

[0048] The present invention is not limited to the above-mentioned specific implementation methods. Various changes made by technicians in the relevant technical field based on the above-mentioned conception without creative work are all within the scope of protection of the present invention.

Claims

1. An auxiliary device for welding long-span steel beams, comprising a supporting device (1), a monitoring device (2), a fulcrum device (3), a clamping device (4), and a spring-pull device (5), characterized in that: The monitoring device (2) is mounted on the side of the support device (1) in a sliding manner in the horizontal direction. The monitoring device (2) is used to monitor the bending degree of the steel beam. The six fulcrum devices (3) are mounted inside the support device (1) in a sliding manner in the horizontal direction. The four rotary clamping devices (4) are fixedly mounted on the upper end of the support device (1). The two rotary clamping devices (4) located on one side of the center line of the support device (1) are fixedly connected to each other. The two rotary clamping devices (4) located on the other side of the center line of the support device (1) are fixedly connected to each other. The rotary clamping devices (4) include a T-shaped slider (404), a first connecting rod (405), a rotary clamping slider (406), and a second connecting rod. (408) and the rotary clamp fixture (409), the two ends of the first connecting rod (405) are respectively hinged to the T-shaped slider (404) and one end of the rotary clamp slider (406), and the two ends of the second connecting rod (408) are respectively hinged to the other end of the rotary clamp slider (406) and one side of the rotary clamp fixture (409). When the T-shaped slider (404) slides outward or inward, the T-shaped slider (404) drives the two rotary clamp sliders (406) to slide in opposite directions along the circumferential direction through the two first connecting rods (405). At this time, the two rotary clamp sliders (406) drive the rotary clamp fixture (409) to slide inward or outward through the two second connecting rods (408), so that the rotary clamp fixture (409) can rotate. The sliding direction of the clamp (409) is exactly opposite to the sliding direction of the T-shaped slider (404), so as to realize the clamping and releasing functions of the steel beam; the elastic pulling device (5) comprises 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 mounted on the lower end of the elastic pulling bracket (505), and the two ends of the linkage bracket (503) are respectively fixed Installed on the side of the support device (1) and the side of the elastic bracket (505), the lower end of the elastic spring (504) is fixedly installed inside the elastic bracket (505), the upper end of the elastic spring (504) is fixedly installed at the lower part of the support device (1), the elastic bracket (505) is slidably installed on the side of the support device (1) in the vertical direction, the second electric push rod (506) is fixedly installed on the upper end of the elastic bracket (505) in the vertical direction, the upper end of the elastic slider (507) is fixedly connected to the output end of the second electric push rod (506), and the elastic slider (507) is slidably installed on the side of the elastic bracket (505) in the vertical direction;The fulcrum device (3) comprises 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), wherein the upper end of the first cable (301) is fixedly mounted on the upper end of the elastic bracket (505), the lower end of the first cable (301) is fixedly mounted on the upper end of the first clamping plate (303), the upper end of the second cable (302) is fixedly mounted on the upper end of the elastic bracket (505), the lower end of the second cable (302) is fixedly mounted on the upper end of the second clamping plate (304), and the lower end of the first clamping plate (303) is fixedly mounted on the upper end of the elastic bracket (505). The first end of the second clamping plate (304) is mounted on the upper end of the fulcrum base (307) for sliding along the horizontal direction, the lower end of the second clamping plate (304) is mounted on the upper end of the fulcrum base (307) for sliding along the horizontal direction, the two ends of the first tensioning spring (305) are respectively fixedly mounted on the side of the first clamping plate (303) and the inside of the fulcrum base (307), the two ends of the second tensioning spring (306) are respectively fixedly mounted on the side of the second clamping plate (304) and the inside of the fulcrum base (307), the lower end of the fulcrum base (307) is slidably inserted into the inside of the fulcrum slider (308) along the vertical direction, 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).

2. The auxiliary device for welding long-span steel beams according to claim 1, characterized in that: The clamping device (4) further comprises a clamping turntable (401), a tightening bolt (403), a transfer assembly (407) and a clamping base (410). The clamping turntable (401) is rotatably connected to the outer cylindrical surface of the transfer assembly (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) is inserted into the interior of the transfer assembly (407). The T-shaped slider (404 ) is slidably mounted on the transfer assembly (407) in the radial direction, the clamp slider (406) is slidably mounted on the inner side of the clamp base (410) in the circumferential direction, the clamp slider (406) is fixedly connected to the clamp base (410) via a spring, the inner cylindrical surface of the transfer assembly (407) is slidably connected to the outer cylindrical surface of the clamp slider (406), the side surface of the clamp fixture (409) is also fixedly connected to the transfer assembly (407), and the clamp 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, characterized in that: The inner circumferential surface of the rotary clamping disc (401) is provided with rotary clamping bevel teeth (402), and the inner sides of the rotary clamping bevel teeth (402) are 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, characterized in that: The indexing assembly (407) includes a first indexing disc (411), a second indexing disc (412), an indexing support (413) and a limiting slide (414). The first indexing disc (411) is fixedly mounted on the periphery of the second indexing disc (412). The outer circumference of the first indexing disc (411) is rotatably connected to the inner circumference of the rotating clamping disc (401). The T-shaped slide (404) is slidably mounted on the first indexing disc (411) along the radial direction of the first indexing disc (411). The second indexing disc (412) is fixedly mounted on the periphery of the second indexing disc (412). The outer circumference of the first indexing disc (411) is rotatably connected to the inner circumference of the rotating clamping disc (401). The inner circumferential surface of the positioning disk (412) is slidably connected to the outer cylindrical surface of the rotary clamp slider (406), the indexing pillar (413) is fixedly installed on the side of the second positioning disk (412), and the two adjacent rotary clamp devices (4) are fixedly connected through the indexing pillar (413). The limiting slide bar (414) is slidably installed on the side of the second positioning disk (412) along the radial direction of the second positioning disk (412), and the limiting slide bar (414) is also fixedly connected to the side of the rotary clamp fixture (409).

5. The auxiliary device for welding long-span steel beams according to claim 4, characterized in that: A welding head (508) and a welding switch (509) are provided on the elastic support (505), wherein the output end of the welding head (508) is perpendicular to the side of the steel beam, and the welding switch (509) is fixedly mounted on the rear end of the welding head (508).

6. The auxiliary device for welding long-span steel beams according to claim 5, characterized in that: The support device (1) comprises a support base (101), a support bottom plate (102), a support slide rail (103), a first electric push rod (104), an insertion assembly (105) and a locking slider (106); the support bottom plate (102) is fixedly mounted on 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 mounted inside the support slide rail (103) in a horizontal direction; the first electric push rod (104) The first electric push rod (104) is fixedly mounted on the side of the support base (102) in a vertical direction, the output end of the first electric push rod (104) is fixedly connected to the linkage bracket (503), the insertion assembly (105) is slidably mounted on the support base (102) in a vertical direction, the locking slider (106) is slidably mounted on the side of the support base (102) in a horizontal direction, the locking slider (106) is inserted into the interior of the rotary clamp base (410), and the locking slider (106) is tightened to the support base (102) by a bolt.

7. The auxiliary device for welding long-span steel beams according to claim 6, characterized in that: The insertion assembly (105) includes an insertion spring (107), a U-shaped insertion rod (108) and an insertion bracket (109), wherein the upper end of the insertion spring (107) is fixedly mounted on the lower end of the support base (102), the lower end of the insertion spring (107) is fixedly mounted on the upper end of the insertion bracket (109), the U-shaped insertion rod (108) is fixedly mounted on the upper end of the insertion bracket (109), and the U-shaped insertion rod (108) is slidably mounted in the interior of the support base (102) in the vertical direction. At the same time, the U-shaped insertion rod (108) is inserted into the periphery of the transfer pillar (413).

8. The auxiliary device for welding long-span steel beams according to claim 7, characterized in that: The monitoring device (2) comprises 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 mounted on 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 mounted on the upper end of the monitoring bracket (203) in a horizontal direction; the monitoring camera (202) is electrically connected to the monitoring display screen (201); the monitoring bracket (203) is fixedly mounted on the side of the monitoring slider (204); the monitoring slider (204) is slidably mounted on the side of the supporting base plate (102) in a horizontal direction; and the monitoring slider (204) is tightened to the supporting base plate (102) by bolts.

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