An adjustable assembly and welding positioning device for a grid structure

Abstract

The present invention relates to the field of grid welding, and particularly to an adjustable assembly welding positioning device for a grid structure, which includes a workbench. A cylinder is fixedly arranged at the center of the bottom of the workbench. The output end of the cylinder is connected with a lifting shaft. Rotating seats are fixedly arranged on both sides of the upper end of the workbench. A pair of bearing plates are symmetrically and rotatably installed in the rotating seats. A clamping assembly is arranged on the surface of the bearing plates. The bottom of the bearing plate is rotationally matched with one end of a connecting rod, and the other end of the connecting rod is rotationally matched with the lifting shaft. A follower plate is slidably installed between the sides of the two bearing plates, and a welding assembly is arranged above the follower plate. In the present invention, the cylinder controls the lifting shaft to move up and down, and the lifting shaft drives the bearing plates at both ends to deflect synchronously through the connecting rod, so that the welding angle between the two grids can be flexibly adjusted. At the same time, the first positioning plate and the second positioning plate cooperate with the transverse clamping plate and the longitudinal clamping plate to effectively clamp and position the grid structure.

Description

Technical Field

[0001] The present invention relates to the technical field of grid welding, and particularly to an adjustable assembly welding positioning device for a grid structure. Background Art

[0002] A steel structure grid is a space structure formed by connecting multiple bars in a certain grid form through nodes. The grid structure has a large overall stiffness and good integrity, and can bear large loads. Due to its unique advantages and characteristics, the steel structure grid is widely used in various buildings with large-span and column-free roof structures, such as stadiums, theaters, exhibition halls, waiting halls, aircraft hangars, and large workshops. These buildings usually have high requirements for space utilization rate, structural stability, and seismic performance, and the steel structure grid is an ideal choice to meet these requirements.

[0003] The steel structure grid can be formed by splicing and welding multiple frames. In order to facilitate the assembly and welding of the overall grid, it is necessary to first splice and weld between adjacent frames to form several frame modules. The current grid welding equipment can only perform the welding process at a fixed angle for two adjacent grids, and cannot accurately control the welding angle between the two grids. Summary of the Invention

[0004] The purpose of the present invention is to provide an adjustable assembly welding positioning device for a grid structure, aiming to solve the above technical problems.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] An adjustable assembly welding positioning device for a grid structure includes a workbench. A cylinder is fixedly arranged at the center of the bottom of the workbench. The output end of the cylinder is connected with a lifting shaft. Rotating seats are fixedly arranged on both sides of the upper end of the workbench. A pair of bearing plates are symmetrically and rotatably installed in the rotating seats. A clamping assembly is arranged on the surface of the bearing plates. The bottom of the bearing plate is rotationally matched with one end of a connecting rod, and the other end of the connecting rod is rotationally matched with the lifting shaft. A follower plate is slidably installed between the sides of the two bearing plates. A welding assembly is arranged above the follower plate.

[0007] The clamping assembly includes a pair of horizontal clamping plates. A sliding groove is arranged on the surface of the bearing plate. The bottom of the horizontal clamping plate is horizontally slidably installed in the sliding groove through a slider. A sliding table is fixedly arranged at the upper end of the bearing plate. An extrusion spring is arranged between the horizontal clamping plate and the side wall of the sliding table. A sliding plate is vertically slidably installed inside the sliding table. A vertical clamping plate is fixedly arranged at the front end of the sliding plate. An extension seat is arranged on one side of the bearing plate. The end of the sliding plate is connected with the extension seat through a return spring.

[0008] As a further solution of the present invention: pivot shafts are fixedly arranged on both sides of the bearing plate, the bearing plate is rotationally matched with the rotating seat through the pivot shafts, a follower chute is arranged along the length direction on the side edge of the bearing plate, a fixed rod is fixedly arranged between the follower plates, a sliding pin is arranged on the side wall of the follower plate, and the sliding pin is adaptively and slidably installed in the corresponding follower chute.

[0009] As a further solution of the present invention: a spring groove is arranged in the center of the fixed rod, a ejector rod is slidably penetrated in the spring groove, a baffle is fixedly arranged at the bottom of the ejector rod, a support is fixedly arranged at the top end of the ejector rod, a jacking spring is arranged between the bottom of the support and the spring groove, and a first positioning plate and a second positioning plate are rotationally installed in the support through a rotating shaft.

[0010] As a further solution of the present invention: the first positioning plate and the second positioning plate are oppositely arranged on both sides of the support, torsion springs are arranged between the two ends of the first positioning plate and the two ends of the second positioning plate, and both the first positioning plate and the second positioning plate have a tendency to turn inward and close together through the torsion springs.

[0011] As a further solution of the present invention: the transverse clamping plate, the longitudinal clamping plate, the first positioning plate and the second positioning plate are all L-shaped plates, the transverse clamping plate and the longitudinal clamping plate are pressed against the side edge of the grid frame, and the first positioning plate and the second positioning plate are leaned against the bottom of the side edge at the top end of the grid frame.

[0012] As a further solution of the present invention: the welding assembly includes a mounting frame, a screw rod is rotationally installed at the upper end of the mounting frame, the screw rod is driven to rotate by a motor, a sliding seat is screwed on the screw rod, a mounting seat is fixedly arranged at the bottom of the sliding seat, and a welding torch is fixedly arranged on the mounting seat.

[0013] As a further solution of the present invention: the two grid frames are abutted and aligned at the top end position, and the welding torch is directly opposite to the joint at the top ends of the two grid frames.

[0014] As a further solution of the present invention: an ear seat is extended and arranged on the outer side of the follower plate, electric lifting rods are fixedly arranged on both sides at the upper end of the workbench, and the top ends of the electric lifting rods slidably penetrate through the ear seat and are fixedly connected with the bottom of the mounting frame.

[0015] As a further solution of the present invention: limit sliding rails are fixedly arranged on both sides at the upper end of the workbench, and both ends of the lifting shaft are adaptively and slidably installed in the limit sliding rails.

[0016] As a further solution of the present invention: the included angle range formed between the two bearing plates is 60° - 180°.

[0017] The beneficial effects of the present invention:

[0018] (1) By symmetrically arranging a set of bearing plates, when preparing for welding, the two grid frames are respectively placed on the bearing plates in parallel. At the same time, the lifting shaft is controlled by a cylinder to move up and down. The lifting shaft will drive the bearing plates at both ends to deflect synchronously through a connecting rod, so that the welding angle between the two grid frames can be flexibly adjusted.

[0019] (2) By setting a follower plate, when the bearing plates at both ends adjust the welding angle through a connecting rod, using the sliding fit between the sliding pin and the follower sliding groove, the follower plate will perform corresponding vertical lifting along with the deflection of the bearing plate. Cooperating with the up and down floating of the ejector rod under the action of the jacking spring, the first positioning plate and the second positioning plate can always be located at the top joint of the grid frame structure. Under the flipping force of the torsion spring, the first positioning plate and the second positioning plate can always apply an inward pushing pressure to the grid frame structure, so that the two grid frames can keep tight at the top joint, which is beneficial to the welding process. At the same time, the first positioning plate and the second positioning plate cooperate with the transverse clamping plate and the longitudinal clamping plate to effectively clamp and position the grid frame structure.

[0020] (3) By setting a welding assembly, since the welding torch is aligned with the joint at the top of the grid frame, when the motor starts, it drives the screw to rotate. The screw drives the mounting seat to move horizontally along the axis through the sliding seat, so that the welding torch can accurately weld the grid frame along the weld, ensuring the welding quality. At the same time, when the grid frame structure adjusts the welding angle, the mounting frame is controlled by an electric lifting rod to perform corresponding lifting movements along with the swing of the grid frame, so that the welding torch can always maintain an appropriate welding distance from the joint, which is beneficial to improving the welding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the installation of the bearing plate in the present invention.

[0024] Figure 3 It is a schematic diagram of the structure of the clamping assembly in the present invention.

[0025] Figure 4 It is a schematic diagram of the structure of the follower plate in the present invention.

[0026] Figure 5 It is a schematic diagram of the structure of the first positioning plate and the second positioning plate in the present invention.

[0027] Figure 6 It is a schematic diagram of the clamping and positioning of the grid frame in the present invention.

[0028] Figure 7 It is a schematic diagram of the structure of the welding assembly in the present invention.

[0029] In the figure: 1, workbench; 101, limit slide rail; 2, rotating seat; 3, bearing plate; 301, connecting rod; 302, pivot; 303, follower chute; 304, sliding groove; 305, sliding table; 306, extension seat; 4, clamping assembly; 401, horizontal clamping plate; 402, compression spring; 403, sliding plate; 404, vertical clamping plate; 405, return spring; 5, follower plate; 501, fixed rod; 502, sliding pin; 503, ear seat; 504, spring groove; 505, ejector rod; 506, baffle; 507, support; 508, lifting spring; 509, first positioning plate; 510, second positioning plate; 511, torsion spring; 6, cylinder; 601, lifting shaft; 7, electric lifting rod; 8, welding assembly; 801, mounting bracket; 802, screw; 803, motor; 804, sliding seat; 805, mounting seat; 806, welding torch. Specific implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0031] Please refer to Figure 1 and Figure 2 As shown, the present invention is an adjustable assembly welding positioning device for a grid structure, including a workbench 1. A cylinder 6 is fixedly arranged at the center of the bottom of the workbench 1. The output end of the cylinder 6 is connected with a lifting shaft 601. Rotating seats 2 are fixedly arranged on both sides of the upper end of the workbench 1. A pair of bearing plates 3 are symmetrically and rotatably installed in the rotating seats 2. A clamping assembly 4 is arranged on the surface of the bearing plates 3. One end of a connecting rod 301 is rotatably matched with the bottom of the bearing plate 3, and the other end of the connecting rod 301 is rotatably matched with the lifting shaft 601. A follower plate 5 is slidably installed between the sides of the two bearing plates 3. A welding assembly 8 is arranged above the follower plate 5.

[0032] Specifically, by symmetrically arranging a group of bearing plates 3, when preparing for welding, two grids are respectively placed on the bearing plates 3 in parallel. At the same time, the cylinder 6 is used to control the up and down displacement of the lifting shaft 601. The lifting shaft 601 will drive the bearing plates 3 at both ends to deflect synchronously through the connecting rod 301, so that the welding angle between the two grids can be flexibly adjusted.

[0033] As Figure 3As shown, the clamping assembly 4 includes a pair of transverse clamping plates 401. A sliding groove 304 is provided on the surface of the bearing plate 3. The bottom of the transverse clamping plate 401 is horizontally slidably mounted in the sliding groove 304 through a slider. A sliding table 305 is fixedly provided at the upper end of the bearing plate 3. An extrusion spring 402 is provided between the transverse clamping plate 401 and the side wall of the sliding table 305. A sliding plate 403 is vertically slidably mounted inside the sliding table 305. A longitudinal clamping plate 404 is fixedly provided at the front end of the sliding plate 403. An extension base 306 is provided on one side of the bearing plate 3. The end of the sliding plate 403 is connected to the extension base 306 through a return spring 405.

[0034] Specifically, by setting the clamping assembly 4, the transverse clamping plate 401 can be used to perform transverse clamping and positioning on the grid frame, and at the same time, the longitudinal clamping plate 404 is used to perform longitudinal clamping and positioning on the grid frame, so that the grid frame can always remain stable during the angle adjustment and welding process, which is beneficial to improving the welding quality.

[0035] As Figure 3 and Figure 4 As shown, pivot shafts 302 are fixedly provided on both sides of the bearing plate 3. The bearing plate 3 is rotationally matched with the rotating seat 2 through the pivot shafts 302. A follower sliding groove 303 is provided along the length direction on the side edge of the bearing plate 3. A fixing rod 501 is fixedly provided between the follower plates 5. A sliding pin 502 is provided on the side wall of the follower plate 5. The sliding pin 502 is adaptively slidably mounted in the corresponding follower sliding groove 303.

[0036] Furthermore, a spring groove 504 is provided at the center of the fixing rod 501. A top rod 505 is slidably penetrated through the spring groove 504. A baffle 506 is fixedly provided at the bottom of the top rod 505. A support 507 is fixedly provided at the top end of the top rod 505. A jacking spring 508 is provided between the bottom of the support 507 and the spring groove 504. A first positioning plate 509 and a second positioning plate 510 are rotationally mounted inside the support 507 through a rotating shaft.

[0037] Specifically, by setting the follower plate 5, when the bearing plates 3 at both ends adjust the welding angle through the connecting rod 301, by means of the sliding fit between the sliding pin 502 and the follower sliding groove 303, the follower plate 5 will perform corresponding vertical lifting along with the deflection of the bearing plate 3, and in cooperation with the up and down floating of the top rod 505 under the action of the jacking spring 508, the first positioning plate 509 and the second positioning plate 510 can always be located at the top joint of the grid frame structure.

[0038] As Figure 5 As shown, the first positioning plate 509 and the second positioning plate 510 are oppositely arranged on both sides of the support 507. A torsion spring 511 is provided between the two ends of the first positioning plate 509 and the two ends of the second positioning plate 510. The first positioning plate 509 and the second positioning plate 510 both have a tendency to flip inward and close through the torsion spring 511.

[0039] Specifically, under the flipping force of the torsion spring 511, the first positioning plate 509 and the second positioning plate 510 can always apply an inward pushing pressure to the grid structure, so that the two grids can keep the joints at the top tight, which is beneficial to the welding process. At the same time, the first positioning plate 509 and the second positioning plate 510 cooperate with the transverse clamping plate 401 and the longitudinal clamping plate 404 to effectively clamp and position the grid structure.

[0040] As Figure 6 shown, the transverse clamping plate 401, the longitudinal clamping plate 404, the first positioning plate 509 and the second positioning plate 510 are all L-shaped plates. The transverse clamping plate 401 and the longitudinal clamping plate 404 are pressed against the sides of the grid, and the first positioning plate 509 and the second positioning plate 510 are leaned against the bottom of the top side of the grid.

[0041] Specifically, when installing the grid, the transverse clamping plates 401 at both ends compress and squeeze the compression spring 402 inward, and at the same time, the longitudinal clamping plate 404 compresses the return spring 405 upward through the sliding plate 403. After preparation, the tops of the grids at both ends are respectively leaned against the first positioning plate 509 and the second positioning plate 510. The first positioning plate 509 and the second positioning plate 510 are used to make the tops of the two grids in close contact. At the same time, the transverse clamping plate 401 and the longitudinal clamping plate 404 are loosened. At this time, the transverse clamping plate 401 will limit and clamp the two sides of the grid, and the longitudinal clamping plate 404 will limit and clamp the bottom side of the grid, so as to effectively clamp and position the grid structure.

[0042] As Figure 7 shown, the welding assembly 8 includes a mounting frame 801. A screw rod 802 is rotatably installed at the upper end of the mounting frame 801. The screw rod 802 is driven to rotate by a motor 803. A sliding seat 804 is screwed on the screw rod 802. An installation seat 805 is fixedly arranged at the bottom of the sliding seat 804, and a welding torch 806 is fixedly arranged on the installation seat 805.

[0043] Furthermore, the two grids are abutted and aligned at the top position, and the welding torch 806 is exactly opposite to the joint at the top of the two grids.

[0044] Furthermore, an ear seat 503 is extended and arranged outside the follower plate 5. Electric lifting rods 7 are fixedly arranged on both sides of the upper end of the workbench 1. The tops of the electric lifting rods 7 slide through the ear seat 503 and are fixedly connected to the bottom of the mounting frame 801.

[0045] Specifically, by setting up the welding assembly 8, since the welding torch 806 is aligned with the joint at the top of the grid frame, when the motor 803 starts, it drives the screw rod 802 to rotate. The screw rod 802 drives the mounting seat 805 to move horizontally along the axial direction through the sliding seat 804, so that the welding torch 806 can accurately weld the grid frame along the weld seam, ensuring the welding quality. At the same time, when the welding angle of the grid frame structure is adjusted, the electric lifting rod 7 controls the mounting frame 801 to make corresponding lifting movements along with the swing of the grid frame, so that the welding torch 806 can always maintain an appropriate welding distance from the joint, which is beneficial to improving the welding effect.

[0046] As Figure 2 shown, on both sides of the upper end of the workbench 1, limiting slide rails 101 are fixedly arranged, and both ends of the lifting shaft 601 are adaptively and slidably installed in the limiting slide rails 101.

[0047] Specifically, when the air cylinder 6 controls the lifting shaft 601 to move up and down, in order to ensure reliable transmission between it and the connecting rod 301, the two ends of the lifting shaft 601 are limited by the limiting slide rails 101, so that the lifting shaft 601 will always move along the correct direction of the limiting slide rails 101 during the lifting process, thereby improving its movement stability.

[0048] In this embodiment, the included angle range formed between the two bearing plates 3 is 60° - 180°, that is, the adjustment range of the welding included angle between the two grid frames is 60° - 180°.

[0049] The working principle of the present invention: As Figures 1-7As shown, when installing the grid frame, the transverse clamping plates 401 at both ends compress the compression spring 402 inward, and at the same time, the longitudinal clamping plate 404 compresses the return spring 405 upward through the sliding plate 403. After preparation, the tops of the grid frames at both ends are respectively leaned against the first positioning plate 509 and the second positioning plate 510. By using the first positioning plate 509 and the second positioning plate 510, the tops of the two grid frames are closely contacted. At the same time, the transverse clamping plate 401 and the longitudinal clamping plate 404 are released. At this time, the transverse clamping plate 401 will limit and clamp the two side edges of the grid frame, and the longitudinal clamping plate 404 will limit and clamp the bottom edge of the grid frame, so as to effectively clamp and position the grid frame structure. Since the welding torch 806 is aligned with the joint at the top of the grid frame, when the motor 803 is started, it drives the screw rod 802 to rotate. The screw rod 802 drives the mounting seat 805 to move horizontally along the axis direction through the sliding seat 804, so that the welding torch 806 can accurately weld the grid frame along the weld, ensuring the welding quality. At the same time, the lifting shaft 601 is controlled by the cylinder 6 to move up and down. The lifting shaft 601 will drive the bearing plates 3 at both ends to deflect synchronously through the connecting rod 301, so that the welding angle between the two grid frames can be flexibly adjusted. When the welding included angle of the grid frame structure is adjusted, the electric lifting rod 7 controls the mounting frame 801 to make corresponding lifting movements along with the swing of the grid frame, so that the welding torch 806 can always maintain an appropriate welding distance from the joint, which is beneficial to improving the welding effect.

[0050] The above has described an embodiment of the present invention in detail, but the content described is only the preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. An adjustable assembly welding positioning device for a grid structure, comprising a workbench, characterized in that, A cylinder is fixedly arranged at the center of the bottom of the workbench. The output end of the cylinder is connected with a lifting shaft. Rotating seats are fixedly arranged on both sides of the upper end of the workbench. A pair of bearing plates are symmetrically and rotatably installed in the rotating seats. A clamping assembly is arranged on the surface of the bearing plates. The bottom of the bearing plate is rotationally matched with one end of a connecting rod, and the other end of the connecting rod is rotationally matched with the lifting shaft. A follower plate is slidably installed between the sides of the two bearing plates, and a welding assembly is arranged above the follower plate; The clamping assembly includes a pair of horizontal clamping plates. Sliding grooves are arranged on the surface of the bearing plate. The bottom of the horizontal clamping plate is horizontally slidably installed in the sliding groove through a slider. A sliding table is fixedly arranged at the upper end of the bearing plate. An extrusion spring is arranged between the horizontal clamping plate and the side wall of the sliding table. A sliding plate is vertically slidably installed inside the sliding table. A vertical clamping plate is fixedly arranged at the front end of the sliding plate. An extension seat is arranged on one side of the bearing plate. The end of the sliding plate is connected with the extension seat through a return spring; The welding assembly includes a mounting frame. A screw rod is rotatably installed at the upper end of the mounting frame. The screw rod is driven to rotate by a motor. A sliding seat is screwed on the screw rod. A mounting seat is fixedly arranged at the bottom of the sliding seat. A welding torch is fixedly arranged on the mounting seat; An ear seat is extended and arranged on the outer side of the follower plate. Electric lifting rods are fixedly arranged on both sides of the upper end of the workbench. The top ends of the electric lifting rods slidably penetrate through the ear seat and are fixedly connected with the bottom of the mounting frame; Pivot shafts are fixedly arranged on both sides of the bearing plate. The bearing plate is rotationally matched with the rotating seat through the pivot shafts. A follower sliding groove is arranged along the length direction on the side of the bearing plate. A fixing rod is fixedly arranged between the follower plates. A sliding pin is arranged on the side wall of the follower plate, and the sliding pin is adaptively and slidably installed in the corresponding follower sliding groove; A spring groove is arranged at the center of the fixing rod. A top rod is slidably penetrated through the spring groove. A baffle is fixedly arranged at the bottom of the top rod. A support is fixedly arranged at the top end of the top rod. A jacking spring is arranged between the bottom of the support and the spring groove. A first positioning plate and a second positioning plate are rotationally installed in the support through a rotating shaft; 2. The adjustable assembly welding positioning device for a grid structure according to claim 1, characterized in that, The first positioning plate and the second positioning plate are oppositely arranged on both sides of the support. A torsion spring is arranged between the two ends of the first positioning plate and the two ends of the second positioning plate. The first positioning plate and the second positioning plate both have a tendency to turn inwards and close through the torsion spring; 3. The adjustable assembly welding positioning device for a grid structure according to claim 1, characterized in that, The horizontal clamping plate, the vertical clamping plate, the first positioning plate and the second positioning plate are all L-shaped plates. The horizontal clamping plate and the vertical clamping plate are pressed against the side of the grid frame. The first positioning plate and the second positioning plate are leaned against the bottom of the side at the top end of the grid frame; 4. The adjustable assembly welding positioning device for a grid structure according to claim 3, characterized in that, The two grid frames are abutted and aligned at the top end position, and the welding torch is exactly opposite to the joint at the top ends of the two grid frames; 5. The adjustable assembly welding positioning device for a grid structure according to claim 1, characterized in that, Limit sliding rails are fixedly arranged on both sides of the upper end of the workbench. Both ends of the lifting shaft are adaptively and slidably installed in the limit sliding rails; 6. The adjustable assembly welding positioning device for a grid structure according to claim 1, characterized in that, The included angle range formed between the two bearing plates is 60°-180°;

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