Prefabricated concrete component welding device

By designing the welding device of the carrier plate, guide frame and positioning assembly, automatic docking and multi-point welding of the steel frame and the longitudinal steel bars are achieved, which solves the problems of low welding efficiency and poor quality in the existing technology and improves the welding efficiency and quality.

CN223338704UActive Publication Date: 2025-09-16AVIC CONSTR GRP CO LTD +1
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Patent Information

Application Number
CN202521413852.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-07
Publication Date
2025-09-16
Estimated Expiration
2035-07-07

AI Technical Summary

Technical Problem

Existing welding devices cannot automatically move the steel frame along the longitudinal steel bars to the welding position, resulting in low welding efficiency and poor welding quality, and a movable gap is easily formed between the steel frame and the longitudinal steel bars.

Method used

A concrete precast component welding device was designed, which adopts a carrier plate, a guide frame, a welding mechanism and a positioning assembly. The electric push rod drives the clamping block to clamp the steel frame and move it along the longitudinal steel bars. The welding gun on the yoke can realize multi-point simultaneous welding to ensure close contact between the steel frame and the longitudinal steel bars.

Benefits of technology

It improves the efficiency and quality of steel cage welding, prevents the steel frame from loosening, ensures welding quality, reduces manual intervention, and improves the degree of automation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of prefabricated part welding, in particular to a concrete prefabricated part welding device which comprises a carrying plate, supporting columns are installed at the two ends of the carrying plate, a guide frame is connected to the top of the carrying plate in a sliding mode, and a two-way lead screw is rotationally connected to the interior of the guide frame. The two ends of the two-way lead screw are connected with transmission blocks in a screwed mode, a welding mechanism is arranged on the top of the guide frame, and the welding mechanism comprises two [-shaped frames fixedly connected with the transmission blocks in the corresponding positions. According to the steel bar frame welding device, the two [-shaped frames are used for forming the rectangular frame, and the welding guns are installed at the four corners of the rectangular frame through the first electric push rods, so that the multiple welding guns can weld the four corners of a steel bar frame and longitudinal steel bars at the same time, the welding efficiency of the steel bar frame is improved, and the output ends of the multiple second electric push rods drive the clamping blocks to push the steel bar frame; therefore, the reinforcing steel bar frame is tightly abutted against the longitudinal reinforcing steel bars, and the reinforcing steel bar frame and the longitudinal reinforcing steel bars are firmly welded together.
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Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated component welding, in particular to a concrete prefabricated component welding device. Background Art

[0002] Precast concrete components are concrete structures prefabricated on a production line. When producing precast piles, a columnar steel cage is first welded together. The cage is then placed in a precast pile mold and concrete is poured to produce the pile. The columnar steel cage consists of a steel pipe with multiple longitudinal steel bars evenly fixed around the pipe. Multiple steel frames are welded to the outside of the longitudinal steel bars. The corners of the steel frames are welded to the corresponding longitudinal steel bars to enhance the stability of the entire columnar steel cage structure.

[0003] Although the welding device of the prior art can efficiently weld the steel bar frame and the longitudinal steel bars with the help of positioning equipment such as a manipulator and a welding gun, it cannot automatically move the steel bar frame to the welding position along the longitudinal steel bars during the welding process. Generally, it is necessary to manually arrange the steel bar frame on multiple longitudinal steel bars, which affects the welding efficiency of the prefabricated steel cage component. In addition, the free end of the steel bar is not fixed when the steel bar is bent into the steel bar frame. If the steel bar frame is not squeezed and positioned to the outside of the longitudinal steel bar when welding the steel bar frame, it is easy to cause a movable gap between the steel bar frame and the longitudinal steel bar, affecting the welding quality. Utility Model Content

[0004] The purpose of the present utility model is to provide a prefabricated concrete component welding device to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A concrete prefabricated component welding device, comprising:

[0007] A carrier plate, with pillars installed at both ends of the carrier plate, and the two pillars can support the steel pipes on the reinforcement cage;

[0008] A guide frame is slidably connected to the carrier plate, wherein a bidirectional screw rod is rotatably connected inside the guide frame, and both ends of the bidirectional screw rod are screwed and connected to a transmission block;

[0009] The welding mechanism is arranged on the top of the guide frame, and the welding mechanism includes two U-shaped frames respectively fixedly connected to the corresponding transmission blocks. An electric push rod 1 is fixed at the two corners of the U-shaped frame, and a welding gun is fixed at the output end of the electric push rod 1. Two positioning assemblies are fixed on the outside of the U-shaped frame;

[0010] The positioning component can not only press the steel cage against the outside of the longitudinal steel bars, but also move the steel bar frame along the longitudinal steel bars. The positioning component includes an electric push rod II, and a clamping block capable of clamping the steel bar frame is fixed to the output end of the electric push rod II.

[0011] Furthermore, the positioning component further includes a connecting seat fixed to the C-shaped frame, and the connecting seat is fixed to the electric push rod II.

[0012] Furthermore, a plurality of electric push rods II with clamping blocks at their output ends are arranged in an annular and equiangular manner on the periphery of the steel bar frame, and both sides of the opening of the clamping block are inclined surfaces.

[0013] Furthermore, two linear guide rails are fixed to the top surface of the carrier plate. Sliders are slidably connected to the tops of the linear guide rails. The two sliders are fixed to a guide frame, and a motor capable of driving a bidirectional screw rod to rotate is fixed to one end of the guide frame.

[0014] Furthermore, a moving seat is fixed to the bottom of the guide frame, an oil cylinder is fixed to the top of the moving seat, and a second support plate is fixed to the output end of the oil cylinder.

[0015] Furthermore, a slide rail is fixed to the top of the carrier plate, and the slide rail is slidably connected to the moving seat.

[0016] Furthermore, a dovetail groove is formed at one end of the carrier plate, and the dovetail groove is slidably installed with a corresponding pillar, and the other pillar is fixed to the carrier plate.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. By respectively lapping the two ends of the steel pipe of the steel cage on the corresponding pillars, the two C-shaped frames are arranged in the middle and moved on the outside of the steel cage. The output ends of a plurality of electric push rods II extend, and a plurality of clamping blocks respectively clamp at different positions on the periphery of the steel bar frame, and the clamping blocks have a tendency to move towards the longitudinal steel bars. Furthermore, the clamping blocks press the steel bar frame against the outside of a plurality of longitudinal steel bars, effectively preventing the free end of the steel bar frame from being loosely sleeved on the outside of the longitudinal steel bars due to non-fixation. The close contact between the steel bar frame and the longitudinal steel bars is beneficial to improving the welding quality.

[0019] 2. By fixing electric push rods I at both inner corners of the C-shaped frame, the output ends of the electric push rods I extend to make the welding torches approach the welding positions of the steel bar frame and the longitudinal steel bars. A plurality of welding torches are respectively arranged at the four corner positions of the steel bar frame for simultaneous welding, which is beneficial to improving the welding efficiency of the prefabricated steel cage. And by arranging the electric push rods I obliquely, it helps the welding torches at their output ends to be directly facing the交接位置 of the steel bar frame and the longitudinal steel bars, further improving the welding quality.

[0020] 3. The welding gun is retracted to the welding position by contracting the output end of the electric push rod one, and the clamp is retracted to the clamping position by contracting the output end of the electric push rod two. The positioning component on the welding mechanism can be moved to the outside of the spare steel bar frame by linear sliding on the carrier plate with the help of the guide frame. Then the output end of the electric push rod two moves toward the steel bar frame with the clamp and clamps the steel bar frame inside the opening of the clamp. At this time, after the clamp clamps the steel bar frame, it no longer presses it onto the longitudinal steel bar. Instead, it moves along the longitudinal steel bar with the help of the guide frame and the bracket with multiple clamps on the electric push rod two, so that the steel bar frame can be automatically arranged to the predetermined position for welding, which is beneficial to improving the efficiency of adjusting the position of the steel bar frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the welded steel cage of the utility model;

[0023] Figure 3 This is a schematic structural diagram of the utility model showing the pillar in a disassembled state;

[0024] Figure 4 This is a schematic diagram of the guide frame and welded drum structure in the utility model;

[0025] Figure 5 It is a schematic diagram of the positioning component structure in the utility model.

[0026] In the figure: 100, carrier plate; 110, pillar; 111, notch; 112, support plate 1; 120, linear guide rail; 121, slider; 130, slide rail; 140, dovetail groove; 200, guide frame; 210, bidirectional screw rod; 211, transmission block; 220, motor; 230, chip box; 300, welding mechanism; 310, yoke; 320, electric push rod 1; 321, welding gun; 330, positioning assembly; 331, electric push rod 2; 332, clamping block; 3321, inclined plane; 333, connecting seat; 400, moving seat; 410, oil cylinder; 411, support plate 2. DETAILED DESCRIPTION

[0027] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0028] For example 1, please refer to Figure 1 - Figure 5, in the embodiment of the present utility model, a welding device for concrete precast components includes a carrier plate 100. Pillars 110 are installed at both ends of the carrier plate 100. A guiding frame 200 is slidably connected to the top of the carrier plate 100. A bidirectional screw rod 210 is rotatably connected inside the guiding frame 200. Transmission blocks 211 are screwed and connected to both ends of the bidirectional screw rod 210. A welding mechanism 300 is arranged on the top of the guiding frame 200. The welding mechanism 300 includes two U-shaped frames 310 respectively fixedly connected to the corresponding transmission blocks 211. Electric push rods 320 are fixedly connected to both inner corners of the U-shaped frame 310. A welding torch 321 is fixed to the output end of the electric push rod 320. Two positioning components 330 are fixed to the outside of the U-shaped frame 310. The positioning component 330 includes an electric push rod 331. A clamping block 332 capable of clamping a steel bar frame is fixed to the output end of the electric push rod 331.

[0029] Specifically, by using two U-shaped frames 310 to form a rectangular frame, welding torches 321 are installed at the four corners of the rectangular frame through the electric push rods 320, so that multiple welding torches 321 can simultaneously weld the four corners of the steel bar frame to the longitudinal steel bars, improving the welding efficiency of the steel bar frame. The output ends of multiple electric push rods 331 drive the clamping blocks 332 to push the steel bar frame, so that the steel bar frame is tightly abutted against the longitudinal steel bars, which is conducive to firmly welding the steel bar frame and the longitudinal steel bars together. After the output end of the electric push rod 331 drives the clamping block 332 to open and clamp the steel bar frame, it no longer continues to push the clamping block 332 to move, so that multiple clamping blocks 332 can limit and fix the steel bar frame. Then the guiding frame 200 moves with the U-shaped frame 310, making multiple electric push rods 331 move with the clamping blocks 332. Furthermore, the clamping blocks 332 move the steel bar frame to the welding position automatically for standby welding, saving the manual adjustment and arrangement of the welding position of the steel bar frame.

[0030] As Figure 1 shown, in this embodiment, two linear guide rails 120 are fixedly connected to the top surface of the carrier plate 100. A slider 121 is slidably connected to the top of the linear guide rail 120. The two sliders 121 are fixed to the guiding frame 200. The linear sliding of the slider 121 on the linear guide rail 120 enables the guiding frame 200 to move synchronously and linearly along the carrier plate 100, facilitating the guiding frame 200 to drive the welding mechanism 300 to move the steel bar frame to different positions for welding. The sliding principle of the slider 121 on the linear guide rail 120 is prior art and will not be elaborated in detail.

[0031] As Figure 1 shown, in this embodiment, a chip receiving box 230 fixedly connected to the transmission block 211 is arranged at the open end of the guiding frame 200. The chip receiving box 230 can receive the chips dropped during the welding process, preventing the chips from entering the guiding frame 200 and making it difficult to clean the guiding frame 200.

[0032] As [[ID=ST17]] Figure 3As shown, in this embodiment, a notch 111 is provided at the top of the support column 110, and the notch 111 facilitates placing the end of the steel pipe.

[0033] As Figure 4 shown, in this embodiment, a motor 220 capable of driving the bidirectional screw rod 210 to rotate is fixedly connected to one end of the guiding frame 200. The forward and reverse rotation of the motor 220 with the bidirectional screw rod 210 can make the two transmission blocks 211 respectively move the two C-shaped frames 310 closer to each other or move in opposite directions. After the two C-shaped frames 310 move in opposite directions, the space between the two C-shaped frames 310 can be used to lift out the welded steel cage with an external lifting tool, or a steel cage to be welded can be erected on the two support columns 110. After the two C-shaped frames 310 move closer to each other, the welding mechanism 300 performs welding operations.

[0034] As Figure 4 and Figure 5 shown, in this embodiment, the positioning component 330 further includes a connection seat 333 fixedly connected to the C-shaped frame 310, and the connection seat 333 is fixedly connected to the second electric push rod 331, so that the second electric push rod 331 is installed and fixed on the C-shaped frame 310.

[0035] In this embodiment, in combination with Figure 2 , a plurality of second electric push rods 331 with clamping blocks 332 at their output ends are arranged in an annular and equally angular manner on the circumference of the steel bar frame. Thus, under the drive of the second electric push rods 331, the plurality of clamping blocks 332 can push the steel bar frame from different directions on the circumference of the steel bar frame, which helps the steel bar frame to be in close contact with the longitudinal steel bars before welding. The two sides of the opening of the clamping block 332 are inclined surfaces 3321, which facilitate the steel bar frame to easily enter the opening of the clamping block 332.

[0036] Embodiment 2, on the basis of Embodiment 1, in order to add a steel bar frame to the steel cage erected on the two support columns 110.

[0037] As Figure 3 shown, in this embodiment, a moving seat 400 is fixed to the bottom of the guiding frame 200, an oil cylinder 410 is fixed to the top of the moving seat 400, a second support plate 411 is fixed to the output end of the oil cylinder 410, a slide rail 130 is fixed to the top of the carrier plate 100, the slide rail 130 is slidably connected to the moving seat 400, a dovetail groove 140 is provided at one end of the carrier plate 100, the dovetail groove 140 is slidably installed with the corresponding support column 110, and the other support column 110 is fixed to the carrier plate 100.

[0038] In this embodiment, when the number of steel bar frames sleeved on the outside of the steel cage is insufficient and additional steel bar frames need to be added, the guide frame 200 moves with the movable seat 400 to one end of the dovetail groove 140 of the carrier plate 100, and then the output end of the oil cylinder 410 moves up with the second support plate 411 to support the steel cage. The user can slide and remove the support 110, and then sleeve the added steel bar frame onto the steel cage, and then slide the support 110 onto the dovetail groove 140 so that the support 110 supports the steel pipe again, and then retract the output end of the oil cylinder 410 and withdraw the second support plate 411 to complete the addition of the steel bar frame to the steel cage.

[0039] In this embodiment, a support plate 112 is fixed to the outside of the support column 110. When the support column 110 supports the steel cage, the support plate 112 is supported under the longitudinal steel bars to prevent the installed steel cage from rotating and shifting.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0041] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A concrete prefabricated component welding device, characterized in that: Comprising: A carrier plate (100), with struts (110) installed at both ends of the carrier plate (100), and the two struts (110) can support the steel pipes on the steel reinforcement cage; A guiding frame (200), slidably connected to the carrier plate (100), with a bidirectional screw rod (210) rotatably connected inside the guiding frame (200), and transmission blocks (211) screwed at both ends of the bidirectional screw rod (210); A welding mechanism (300), arranged on the top of the guiding frame (200), the welding mechanism (300) includes two U-shaped frames (310) respectively fixedly connected to the corresponding transmission blocks (211), electric push rods one (320) are fixedly installed at both corners of the U-shaped frame (310), the output end of the electric push rod one (320) is fixedly connected with a welding torch (321), and two positioning components (330) are fixedly installed on the outside of the U-shaped frame (310); The positioning component (330) can both press the steel reinforcement cage against the outside of the longitudinal steel bars and move the steel bar frame along the longitudinal steel bars, the positioning component (330) includes an electric push rod two (331), and the output end of the electric push rod two (331) is fixedly connected with a clamping block (332) capable of clamping the steel bar frame.

2. The precast concrete component welding device according to claim 1, characterized in that: The positioning component (330) further includes a connecting seat (333) fixedly connected to the U-shaped frame (310), and the connecting seat (333) is fixedly connected to the electric push rod two (331).

3. The precast concrete component welding device according to claim 1, characterized in that: A plurality of electric push rods two (331) with the clamping blocks (332) at their output ends are arranged in an annular and equiangular manner on the circumference of the steel bar frame, and both sides of the opening of the clamping block (332) are inclined surfaces (3321).

4. The precast concrete component welding device according to claim 1, characterized in that: Two linear guide rails (120) are fixedly installed on the top surface of the carrier plate (100), sliders (121) are slidably connected to the top of the linear guide rails (120), the two sliders (121) are fixedly connected to the guiding frame (200), and a motor (220) capable of driving the bidirectional screw rod (210) to rotate is fixedly installed at one end of the guiding frame (200).

5. The precast concrete component welding device according to claim 1 or 4, characterized in that: A moving seat (400) is fixedly installed at the bottom of the guiding frame (200), an oil cylinder (410) is fixedly installed on the top of the moving seat (400), and the output end of the oil cylinder (410) is fixedly connected with a second support plate (411).

6. The precast concrete component welding device according to claim 5, characterized in that: A slide rail (130) is fixedly installed on the top of the carrier plate (100), and the slide rail (130) is slidably connected to the moving seat (400).

7. The precast concrete component welding device according to claim 6, characterized in that: A燕尾槽 (140) is opened at one end of the carrier plate (100), the 燕尾槽 is slidably installed with the corresponding strut (110), and the other strut (110) is fixedly connected to the carrier plate (100). It should be noted that there is an unclear "燕尾槽" in the original text which is directly retained in the translation. If it is a specific Chinese term that needs to be accurately translated, please provide more information.