A kind of steel structure engineering steel member counter-welding device
By using technical means such as side bearing devices and rotating devices in the alignment welding device of steel structure engineering steel components, the problem of long loading and unloading paths of workpieces is solved and the welding efficiency is improved.
Patent Information
- Application Number
- CN202411793239.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2044-12-09
AI Technical Summary
During the loading and unloading process of the existing steel structure engineering steel component alignment welding device, the workpiece transportation path is longer, resulting in a longer loading and unloading time and reducing welding efficiency.
The side bearing device is used for loading and unloading, the position of the workpiece is adjusted through a linear moving device, the angle adjustment and welding is used for rotating device and rotating load device, and finally the rapid unloading is achieved through the unloading device.
By shortening the loading and unloading distance of the workpiece, the welding efficiency is significantly improved, and the time and labor intensity of manual operation are reduced.
Smart Images

Figure CN119282594B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of welding, and in particular to a device for welding steel components of a steel structure engineering. Background Art
[0002] Steel structure is mainly composed of steel beams, steel columns and other components made of steel sections and steel plates. It is one of the main types of building structures. The components are generally connected by welding or riveting, and the steel sections are generally connected by welding.
[0003] The welding of steel sections is generally performed manually, but the balance of the two sections of steel sections cannot be effectively adjusted during manual operation, so that the joint between the two sections of steel sections and the welding head is not at 90°, resulting in low welding quality of manual welding. The prior art also uses mechanical equipment to automatically weld steel sections. For example, the invention patent with patent publication number CN118287944A discloses a steel structure engineering steel member alignment welding device, which uses a feeding mechanism to carry the steel sections to be welded to reduce the labor intensity of manual labor, and adjusts the steel sections according to the angle of the internal clamping plate of the positioning mechanism to ensure that the steel sections and the welding head are at a 90° vertical angle to avoid welding deviations. The angle adjustment can be completed by rotating the steel sections. When it is stuck between the clamping plates, the feeding structure and the positioning mechanism are integrated, and the two sections of steel sections can be driven by a double-headed motor to move relative to each other, so that they can be spliced together for welding.
[0004] However, the invention also has corresponding defects: when the steel sections are loaded, they are transported along the length direction of the steel sections. The transportation path is long, which makes the loading time-consuming. After the two steel sections are welded into one, the length increases. Unloading along the length direction will further increase the unloading time and reduce the welding efficiency. Summary of the invention
[0005] The purpose of the present invention is to provide a device for welding steel structure engineering steel components, which solves the problems raised by the background technology.
[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:
[0007] A device for welding steel structure engineering steel components in position, comprising a base, on which are provided two linear motion devices, two side bearing devices and a welding device, and the two linear motion devices are symmetrical about the welding device and move along the same horizontal straight line, the side bearing device is used to load the workpiece parallel to the movement direction of the linear motion device from the side, the welding device welds the workpiece along the vertical and horizontal directions, the side bearing device is provided with a rotating device, the rotating device is provided with a rotating bearing device for carrying the workpiece, and the rotating bearing device is driven by the rotating device to rotate around a horizontal straight line parallel to the length direction of the workpiece, the rotating bearing device is provided with a fixing device for fixing the workpiece, and the base is also provided with a unloading device for pushing the workpiece out of the rotating bearing device.
[0008] As a preferred solution of the present invention, the side bearing device includes a bearing seat arranged on the linear moving device, and the outer wall of the bearing seat that is perpendicular to the horizontal plane and parallel to the movement direction of the linear moving device is provided with a workpiece groove, and the inner bottom of the workpiece groove is provided with a pushing component for pushing the workpiece to the rotating bearing device, and the pushing component can avoid the workpiece when the workpiece is input and output from the workpiece groove, the pushing component is connected to a driving device located on the bearing seat, and the rotating bearing device is arranged in the workpiece groove.
[0009] As a preferred scheme of the present invention, the pushing assembly includes multiple screws rotatably connected in the workpiece groove, and the multiple screws are connected to the driving device and can rotate synchronously. The inner bottom of the workpiece groove is provided with multiple pushing grooves for respectively installing the multiple screws, and the multiple pushing grooves extend to the notch of the workpiece groove and are connected to the outside of the supporting seat. Each of the screws is threadedly connected to a sliding seat slidably connected to the inner wall of the pushing groove, and each of the sliding seats is rotatably connected to a push plate for pushing the workpiece through a torsion spring. A lifting groove is provided on the top of each slide seat, and a lifting device is provided in each lifting groove. The end of each lifting device is connected to a limit plate slidably connected to the lifting groove, and when the push plate pushes the workpiece, the limit plate and the side of the push plate facing the notch of the workpiece groove are abutted.
[0010] As a preferred scheme of the present invention, the rotating bearing device includes a first gear rotatably connected to the workpiece groove, a rotating groove for installing the first gear is opened in the workpiece groove, a bearing groove connected to the workpiece groove is opened on the first gear, bearing plates flush with the bottom of the bearing groove are arranged on both sides of the bearing groove, a guiding arc for guiding the workpiece for loading is arranged at the groove mouth of the bearing groove, an arc transition plate is arranged on the workpiece groove, and the arc transition plate extends to contact the edges of the two bearing plates, and an avoidance groove for avoiding the push plate is arranged on the arc transition plate, and the first gear is meshed with a second gear connected to the rotating device.
[0011] As a preferred solution of the present invention, one side of the bearing plate is flush with the inner bottom of the bearing groove, the other side of the bearing plate is arc-shaped, and the center of the arc-shaped outer wall on the bearing plate coincides with the center of the first gear.
[0012] As a preferred solution of the present invention, both sides of the bearing seat are rotatably connected with bearing rings, the bearing rings are provided with notches for workpieces to pass through when loading, and the bearing plate is fixedly connected to the bearing rings through connecting rods.
[0013] As a preferred solution of the present invention, the fixing device includes a telescopic device arranged at the top of the bearing groove, a connecting plate is arranged at the bottom of the telescopic device, a linear pushing device is arranged on the connecting plate, and a right-angle plate for fixing the workpiece is arranged on the linear pushing device.
[0014] As a preferred solution of the present invention, an accommodating groove is provided at the inner top of the bearing groove, and the telescopic device is installed at the inner bottom of the accommodating groove.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] The present invention loads materials from the side of the side support device, fixes the workpiece on the rotating support device through a fixing device, and adjusts the ends of the two workpieces to abut against each other through a linear moving device, and then welds them through a welding device. During the welding process, the angles of the two workpieces are adjusted through a rotating device to completely weld the two workpieces, and finally the workpieces are pushed for unloading through a feeding device. Loading and unloading from the side shortens the distance of loading and unloading the workpieces, thereby improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.
[0018] Figure 1 A structural schematic diagram of a first-viewing angle of view of a device for welding steel structure components in a steel structure engineering is provided for an embodiment of the present invention;
[0019] Figure 2 A structural schematic diagram of a second viewing angle of a device for welding steel structure members in a steel structure engineering according to an embodiment of the present invention;
[0020] Figure 3 A partial cross-sectional structural schematic diagram of a steel structure engineering steel member counter-welding device is provided for an embodiment of the present invention;
[0021] Figure 4 A schematic cross-sectional structural diagram of a pushing assembly is provided for an embodiment of the present invention.
[0022] The numbers in the figure represent the following:
[0023] 1. Base; 2. Linear moving device; 3. Side bearing device; 4. Welding device; 5. Rotating device; 6. Rotating bearing device; 7. Fixing device; 8. Unloading device;
[0024] 301, bearing seat; 302, workpiece slot; 303, pushing assembly; 304, pushing slot; 305, screw; 306, slide seat; 307, push plate; 308, lifting slot; 309, lifting device; 310, limit plate; 601, rotating slot; 602, first gear; 603, bearing slot; 604, bearing plate; 605, arc transition plate; 606, avoidance slot; 607, bearing ring; 608, second gear; 701, telescopic device; 702, connecting plate; 703, linear pushing device; 704, right-angle plate; 705, accommodating slot. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0026] like Figures 1 to 4As shown, the present invention provides a device for welding steel structure engineering steel members in position, including a base 1, on which are arranged two linear motion devices 2, two side bearing devices 3 and a welding device 4, and the two linear motion devices 2 are symmetrical about the welding device 4 and move along the same horizontal straight line, the side bearing device 3 is used to load the workpiece parallel to the movement direction of the linear motion device 2 from the side, the welding device 4 welds the workpiece along the vertical direction and the horizontal direction, a rotating device 5 is arranged on the side bearing device 3, a rotating bearing device 6 for bearing the workpiece is arranged on the rotating device 5, and the rotating bearing device 6 is driven by the rotating device 5 to rotate around a horizontal straight line parallel to the length direction of the workpiece, a fixing device 7 for fixing the workpiece is arranged on the rotating bearing device 6, and a feeding device 8 for pushing the workpiece out of the rotating bearing device 6 is also arranged on the base 1.
[0027] When the technical solution of the present application is actually applied, the workpiece (i.e., steel section) is transported by manual or mechanical equipment, and loaded from the side of the side bearing device 3, and finally placed on the rotating bearing device 6, and the workpiece is fixed on the rotating bearing device 6 by the fixing device 7, and then the two side bearing devices 3 are moved toward each other by two linear moving devices 2 respectively until the two workpieces are abutted against each other. Since the two linear moving devices 2 move along the same horizontal straight line, the ends of the two workpieces on the two side bearing devices 3 are aligned after they move toward each other until they abut against each other, thereby ensuring the welding quality. Finally, the welding device 4 is moved in the vertical direction and the horizontal direction perpendicular to the length of the workpiece to weld the two workpieces, and the angle of the rotating bearing device 6 is adjusted by the rotating device 5 to rotate the workpiece, so that the two workpieces are completely welded by the welding device 4.
[0028] After the workpiece is welded, the unloading device 8 pushes the workpiece from the side of the side supporting device 3 to separate from the side supporting device 3. During the whole process, the workpiece is loaded and unloaded from the side of the side supporting device 3. Compared with the prior art scheme of loading and unloading along the length direction of the workpiece, the present application shortens the distance during the loading and unloading process and improves the welding efficiency.
[0029] The side bearing device 3 includes a bearing seat 301 arranged on the linear moving device 2, and a workpiece groove 302 is opened on the outer wall of the bearing seat 301 which is perpendicular to the horizontal plane and parallel to the movement direction of the linear moving device 2. A pushing component 303 for pushing the workpiece to the rotating bearing device 6 is provided at the inner bottom of the workpiece groove 302, and the pushing component 303 can avoid the workpiece when the workpiece is input and output from the workpiece groove 302. The pushing component 303 is connected to a driving device located on the bearing seat 301, and the rotating bearing device 6 is arranged in the workpiece groove 302.
[0030] The workpiece is conveyed manually or mechanically and transported into the workpiece slot 302 through the slot of the workpiece slot 302 , and then the driving device controls the movement of the pushing component 303 to push the workpiece onto the rotating carrier device 6 , and finally fixed by the fixing device 7 .
[0031] The bearing seat 301 is used to bear and install the rotating device 5 and the rotating bearing device 6, so that the rotating bearing device 6 can drive the workpiece to rotate after the workpiece is fixed, thereby realizing welding of the workpiece.
[0032] The pushing assembly 303 includes a plurality of screw rods 305 rotatably connected in the workpiece groove 302, and the plurality of screw rods 305 are connected to the driving device and can rotate synchronously. A plurality of pushing grooves 304 for respectively installing the plurality of screw rods 305 are provided at the inner bottom of the workpiece groove 302, and the plurality of pushing grooves 304 extend to the notch of the workpiece groove 302 and are connected to the outside of the supporting seat 301. Each screw rod 305 is threadedly connected to a slide seat 306 slidably connected to the inner wall of the pushing groove 304. Each slide seat 306 is rotatably connected to a push plate 307 for pushing the workpiece through a torsion spring. A lifting groove 308 is provided on the top of each slide seat 306. A lifting device 309 is arranged in each lifting groove 308. A limit plate 310 slidably connected to the lifting groove 308 is connected to the end of each lifting device 309. When the push plate 307 pushes the workpiece, the limit plate 310 and the push plate 307 are abutted against one side of the notch of the workpiece groove 302.
[0033] When the workpiece is loaded into the workpiece slot 302 , the workpiece squeezes the push plate 307 to rotate around the slide 306 into the push slot 304 and squeezes the torsion spring to deform, so that the push plate 307 does not interfere with the movement of the workpiece being transported into the workpiece slot 302 .
[0034] When the workpiece passes over the push plate 307, the push plate 307 is reset to abut against the limit plate 310 under the elastic force of the torsion spring, and then the driving device starts and drives the multiple screws 305 to rotate at the same time. The multiple slides 306 move along the push groove 304 under the drive of the corresponding screws 305, and the multiple push plates 307 follow the slides 306 to move synchronously to abut against the workpiece, and the workpiece is pushed onto the rotating supporting device 6 through the multiple push plates 307, so that the fixing device 7 fixes the workpiece.
[0035] When the workpiece is completed welded and is unloaded through the unloading device 8, the lifting device 309 is started and drives the limit plate 310 to slide downward along the lifting groove 308 until it is out of contact with the push plate 307, so that the push plate 307 can rotate toward the notch of the workpiece groove 302 after being squeezed by the workpiece, and enter the push groove 304, avoiding interference with the unloading process of the workpiece, so that the workpiece can be loaded and unloaded normally, and the workpiece is loaded and unloaded in a direction perpendicular to its own length, shortening the path length of loading and unloading, and improving welding efficiency.
[0036] The rotating bearing device 6 includes a first gear 602 rotatably connected to the workpiece groove 302, a rotating groove 601 for installing the first gear 602 is opened in the workpiece groove 302, a bearing groove 603 connected to the workpiece groove 302 is opened on the first gear 602, and bearing plates 604 flush with the bottom of the bearing groove 603 are arranged on both sides of the bearing groove 603, and a guiding arc is arranged at the groove of the bearing groove 603 for guiding the workpiece for loading, an arc transition plate 605 is arranged on the workpiece groove 302, and the arc transition plate 605 extends to contact the edges of the two bearing plates 604, and an avoidance groove 606 for avoiding the push plate 307 is arranged on the arc transition plate 605, and the first gear 602 is meshed with a second gear 608 connected to the rotating device 5.
[0037] The rotating device 5 drives the second gear 608 to rotate to drive the first gear 602 to rotate in the rotating groove 601, thereby driving the workpiece inside the bearing groove 603 fixed on the first gear 602 to rotate synchronously, so that the workpiece is completely welded by the welding device 4 during the rotation process.
[0038] The arc transition plate 605 and the guide arc are provided to facilitate the pushing component 303 to push the workpiece into the bearing groove 603 for loading.
[0039] By arranging the bearing plates 604 on both sides of the bearing groove 603, the bearing area of the workpiece is increased, thereby improving the stability of the workpiece during welding.
[0040] After the workpiece is loaded into the loading groove 603, the pushing component 303 pushes the workpiece to abut against the inner wall of the loading groove 603. Since the workpieces are in the same direction when placed, the workpieces are in the same position after abutting against the inner wall of the loading groove 603, thereby completing the positioning of the workpiece, making the workpieces in the two loading grooves 603 in a concentric state, and the ends of the two workpieces can be aligned after abutting against each other, thereby ensuring the welding quality.
[0041] The avoidance groove 606 is used to ensure that there is no interference between the pushing component 303 and the arc transition plate 605 .
[0042] In this embodiment, since a bearing groove 603 is provided on the first gear 602, the second gear 608 cannot mesh with the portion of the first gear 602 having the bearing groove 603. Therefore, when the rotating device 5 drives the second gear 608 to drive the first gear 602 to rotate, after the first gear 602 rotates until the second gear 608 contacts the notch of the bearing groove 603, the rotating device 5 drives the second gear 608 to rotate in the opposite direction, so that the second gear 608 contacts the notch on the other side of the bearing groove 603 on the first gear 602, and then resets. The rotation angle of the first gear 602 exceeds 270 degrees, and the welding device 4 can move in two directions, ensuring that the workpiece can be fully and completely welded.
[0043] One side of the support plate 604 is flush with the inner bottom of the support groove 603 , and the other side of the support plate 604 is arc-shaped, and the center of the arc-shaped outer wall of the support plate 604 coincides with the center of the first gear 602 .
[0044] This not only avoids the interference between the carrier plate 604 and the inner wall of the workpiece slot 302 when the carrier plate 604 rotates following the first gear 602 , but also increases the size of the carrier plate 604 as much as possible, thereby improving the stability of the workpiece during welding.
[0045] Both sides of the bearing seat 301 are rotatably connected with a bearing ring 607 . A notch is provided on the bearing ring 607 for the workpiece to pass through when loading, and the bearing plate 604 is fixedly connected in the bearing ring 607 via a connecting rod.
[0046] The supporting ring 607 is rotatably connected to the outer wall of the supporting seat 301 and is connected to the supporting plate 604 through a connecting rod, so that the supporting ring 607 can not only provide support for the supporting plate 604 and improve the stability of the supporting plate 604 when carrying workpieces, but also rotate with the supporting plate 604, so that the stability of the supporting plate 604 during the rotation process is also improved.
[0047] The fixing device 7 comprises a telescopic device 701 arranged at the top of the bearing groove 603, a connecting plate 702 is arranged at the bottom of the telescopic device 701, a linear driving device 703 is arranged on the connecting plate 702, and a right-angle plate 704 for fixing the workpiece is arranged on the linear driving device 703.
[0048] When fixing the workpiece, the telescopic device 701 drives the connecting plate 702 to descend until the inner top of the right-angle plate 704 abuts against the top of the workpiece, and then the linear pushing device 703 drives the right-angle plate 704 to move into the bearing groove 603 until the inner side wall of the right-angle plate 704 abuts against the outer wall of the workpiece, and the workpiece is simultaneously abutted by the inner bottom and inner side wall of the bearing groove 603, so that the surrounding sides of the workpiece are squeezed, so that the workpiece is fixed in the bearing groove 603.
[0049] An accommodating groove 705 is formed at the inner top of the bearing groove 603 , and the telescopic device 701 is installed at the inner bottom of the accommodating groove 705 .
[0050] By providing the receiving groove 705 to install the telescopic device 701 , the space occupied by the telescopic device 701 in the inner space of the bearing groove 603 is reduced, making it easier for the workpiece to enter and exit the bearing groove 603 .
[0051] In this embodiment, the linear moving device 2, the welding device 4, the rotating device 5, the unloading device 8, the driving device, the lifting device 309, the telescopic device 701 and the linear pushing device 703 are all existing technologies. For example, the linear moving device 2 and the linear pushing device 703 are motor-driven threaded rods to drive the corresponding components to move. The welding device 4 can be a first hydraulic push rod that drives the seat body to rise and fall, and drives the second hydraulic push rod on the seat body to rise and fall. At the same time, the second hydraulic push rod drives the welding mechanism to move horizontally. The rotating device 5 can be a motor, etc., the unloading device 8 can be a third hydraulic push rod that drives the unloading plate, the driving device can be a motor, etc., the lifting device 309 and the telescopic device 701 can be electric push rods, etc. The above can also be other existing technologies, and their technical principles will not be elaborated on here.
[0052] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.
Claims
1. A device for welding steel structure engineering steel members, comprising a base (1), characterized in that: The base (1) is provided with two linear motion devices (2), two side bearing devices (3) and a welding device (4), and the two linear motion devices (2) are symmetrical with respect to the welding device (4) and move along the same horizontal straight line. The side bearing device (3) is used to load the workpiece from the side parallel to the movement direction of the linear motion device (2), and the welding device (4) welds the workpiece along the vertical direction and the horizontal direction. The side bearing device (3) is provided with a rotating device (5), and the rotating device (5) is provided with a rotating bearing device (6) for carrying the workpiece, and the rotating bearing device (6) is driven by the rotating device (5) to rotate around a horizontal straight line parallel to the length direction of the workpiece. The rotating bearing device (6) is provided with a fixing device (7) for fixing the workpiece. The base (1) is also provided with a feeding device (8) for pushing the workpiece out of the rotating bearing device (6); The side bearing device (3) comprises a bearing seat (301) arranged on the linear moving device (2); an outer wall of the bearing seat (301) perpendicular to the horizontal plane and parallel to the moving direction of the linear moving device (2) is provided with a workpiece groove (302); a pushing component (303) for pushing the workpiece onto the rotating bearing device (6) is provided at the inner bottom of the workpiece groove (302); the pushing component (303) is capable of avoiding the workpiece when the workpiece is input into and output from the workpiece groove (302); the pushing component (303) is connected to a driving device located on the bearing seat (301); and the rotating bearing device (6) is arranged in the workpiece groove (302); The pushing assembly (303) comprises a plurality of screw rods (305) rotatably connected in the workpiece groove (302), and the plurality of screw rods (305) are connected to a driving device and can rotate synchronously, the inner bottom of the workpiece groove (302) is provided with a plurality of pushing grooves (304) for respectively installing the plurality of screw rods (305), and the plurality of pushing grooves (304) extend to the notch of the workpiece groove (302) and are connected to the outside of the bearing seat (301), and each of the screw rods (305) is threadedly connected to a slide seat (304) slidably connected to the inner wall of the pushing groove (304). 6) Each of the slide seats (306) is rotatably connected to a push plate (307) for pushing the workpiece via a torsion spring, a lifting groove (308) is provided on the top of each of the slide seats (306), a lifting device (309) is provided in each of the lifting grooves (308), and a limit plate (310) is connected to the end of each of the lifting devices (309) in a sliding connection with the lifting groove (308), and when the push plate (307) pushes the workpiece, the limit plate (310) and the side of the push plate (307) facing the notch of the workpiece groove (302) are abutted against each other; The rotating bearing device (6) comprises a first gear (602) rotatably connected to a workpiece groove (302); a rotating groove (601) for mounting the first gear (602) is provided in the workpiece groove (302); a bearing groove (603) communicating with the workpiece groove (302) is provided on the first gear (602); bearing plates (604) flush with the bottom of the bearing groove (603) are provided on both sides of the bearing groove (603); a guiding arc for guiding the workpiece for loading is provided at the notch of the bearing groove (603); an arc transition plate (605) is provided on the workpiece groove (302), and the arc transition plate (605) extends to contact the edges of the two bearing plates (604); an avoidance groove (606) for avoiding the push plate (307) is provided on the arc transition plate (605); and a second gear (608) connected to the rotating device (5) is meshed on the first gear (602).
2. A steel structure engineering steel member butt welding device according to claim 1, characterized in that: One side of the bearing plate (604) is flush with the inner bottom of the bearing groove (603), the other side of the bearing plate (604) is arc-shaped, and the center of the arc-shaped outer wall on the bearing plate (604) coincides with the center of the first gear (602).
3. The device for welding steel structure members according to claim 1 is characterized in that: Both sides of the bearing seat (301) are rotatably connected to bearing rings (607), the bearing rings (607) are provided with notches for workpieces to pass through when loading, and the bearing plate (604) is fixedly connected to the bearing rings (607) via connecting rods.
4. The device for welding steel structure members according to claim 1 is characterized in that: The fixing device (7) comprises a telescopic device (701) arranged at the top of the bearing groove (603), a connecting plate (702) being arranged at the bottom of the telescopic device (701), a linear pushing device (703) being arranged on the connecting plate (702), and a right-angle plate (704) for fixing a workpiece being arranged on the linear pushing device (703).
5. A steel structure engineering steel member counter-welding device according to claim 4, characterized in that: The inner top of the bearing groove (603) is provided with a receiving groove (705), and the telescopic device (701) is installed on the inner bottom of the receiving groove (705).
Citation Information
Patent Citations
Alignment welding device for steel structural engineering profile steel members
CN118287944A
Steel structure stand column welding machining machine
CN113334012A
Profile butt welding machine for constructional engineering
CN117226361A
Feeding device
CN211161758U