A stud welding device for pre-embedded connectors

Abstract

The utility model discloses a kind of stud welding device of pre-buried connecting piece, and electric welding pliers are electrically connected to stud welding machine and control box, and electric welding pliers are assembled in the welding pliers shell of feeder, and feeder is equipped with feeding frame and positioning frame, the translation slide block assembled in the bottom of feeding frame cooperates with the translation guide rail assembled in the top of positioning frame, the guide rail is assembled to the slider connected to the top of welding pliers shell, the bottom of welding pliers shell is connected by fixed support Clamping cylinder, the clamping jaw assembled to clamping cylinder sends the steel bar to be welded to the top of formwork, the flux contained in the inside of box cover is buried in the top of formwork, the bottom of formwork passes through box cover, platform plate, positioning frame and is supported on positioning plate, and positioning plate is set on the bottom of platform plate by thread rod, and positioning plate is electrically connected to stud welding machine by ground wire, the utility model ensures the welding quality of pre-buried connecting piece, and it is convenient and reliable.

Description

Technical Field

[0001] This utility model belongs to the field of pre-embedded connector welding technology, and relates to a stud welding device for pre-embedded connectors. Background Technology

[0002] Embedded connectors are metal connectors pre-installed in concrete structures. They are typically made of steel plates, structural steel, or other metal materials and are connected to steel structural components through welding, riveting, or bolting. Embedded connectors are fixed to the formwork before concrete pouring. As the concrete is poured and hardened, the embedded connectors become an integral part of the concrete structure, providing reliable connection points for subsequent installation.

[0003] Currently, the templates and reinforcing bars of the pre-embedded connectors need to be marked and positioned during the welding process. If the positioning is inaccurate, the welding is easily affected by environmental factors, resulting in a large heat-affected zone. The large residual stress generated will reduce the structural bearing capacity and fatigue resistance, requiring post-treatment of residual stress, which reduces the welding quality and complicates the operation. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this application provides a stud welding device for pre-embedded connectors.

[0005] The technical solution of this utility model is as follows: A stud welding device for pre-embedded connectors includes a stud welding machine and a control box. The stud welding machine and the control box are electrically connected to a welding clamp. The welding clamp is mounted on the welding clamp housing of a feeder. The feeder is equipped with a feeding rack and a positioning rack. A translation slider mounted at the bottom of the feeding rack cooperates with a translation guide rail mounted at the top of the positioning rack. A slider connected to the top of the welding clamp housing is equipped with a guide rail. The bottom of the welding clamp housing is connected to a clamping cylinder through a fixed support. The clamping claws mounted on the clamping cylinder feed the reinforcing bar to be welded to the top of the template. The top of the template is embedded with flux contained inside a box cover. The bottom of the template passes through the box cover, platform plate, and positioning frame and is supported by a positioning plate. The positioning plate is set at the bottom of the platform plate through a threaded rod. The positioning plate is electrically connected to the stud welding machine through a ground wire.

[0006] As a preferred embodiment of this utility model: the number of feeders is two sets, and the two sets of feeders are symmetrically arranged along the length direction of the template.

[0007] In a preferred embodiment of this utility model, the box cover is divided into a first half-box cover and a second half-box cover along the diagonal. The first half-box cover is equipped with a first cylinder, and the second half-box cover is equipped with a second cylinder.

[0008] In a preferred embodiment of this utility model, a feeding cylinder is provided between the feeding frame and the positioning frame.

[0009] In a preferred embodiment of this utility model, the platform plate is positioned at the middle of the welding platform.

[0010] As a preferred embodiment of this utility model: the platform plate has multiple through holes, and a hopper with a positioning tube is provided below the through holes. The flux flows through the filter cylinder and falls onto the conveyor belt.

[0011] The beneficial effects of this utility model are: This utility model discloses a stud welding device for pre-embedded connectors. The device uses clamping jaws assembled with a clamping cylinder to precisely position the reinforcing bar to be welded to the top of a template. The top of the template is embedded with flux contained inside a cover. The bottom of the template passes through the cover, platform plate, and positioning frame, and rests on a positioning plate. The positioning plate is electrically connected to a stud welding machine via a ground wire. An electric arc is generated between the reinforcing bar and the top of the template. When the joint surface begins to melt, the clamping jaws rapidly descend, applying downward pressure to the reinforcing bar, quickly pressing it together with the template to form a weld, ensuring a strong connection. The flux contained in the cover isolates the molten pool from air, preventing oxidation. The flux covers the surface of the molten pool, reducing metal evaporation and porosity formation, minimizing residual stress, ensuring welding quality, and providing convenience and reliability. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the stud welding device for pre-embedded connectors according to the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a sectional view along direction A; Figure 4 This is the view from direction B.

[0013] In the diagram: 1-Stud welding machine; 2-Control box; 3-First feeder; 4-Welding platform; 5-First cylinder; 6-Half-lid one; 7-Welding rebar one; 8-Welding rebar two; 9-Fluoride; 10-Second end plate; 11-Second gripper; 12-Clamping cylinder two; 13-Slider; 14-Guide rail; 15-Lifting motor two; 16-Feeding rack two; 17-Feeding cylinder two; 18-Positioning rack two; 19-Second feeder; 20-Rebar to be welded two; 21-Second cylinder; 22-Half-lid two; 23-First end plate; 24-First gripper; 25-Rebar to be welded one; 2 6-Clamping cylinder one; 27-Lifting motor one; 28-Feeding rack one; 29-Feeding cylinder one; 30-Positioning frame one; 31-Welding clamp housing; 32-Welding clamp; 33-Fixed support; 34-Screw rod; 35-Template; 36-Positioning frame; 37-Positioning plate; 38-Platform plate; 39-Through hole; 40-Bracket; 41-Collection hopper; 42-Positioning tube; 43-Filter cylinder; 44-Conveyor belt; 45-Push-pull plate; 46-Ground wire one; 47-G-clamp one; 48-Threaded rod; 49-G-clamp two; 50-Ground wire two; 51-Transfer slider; 52-Transfer guide rail. Detailed Implementation

[0014] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0015] like Figure 1-4 As shown, a stud welding device for pre-embedded connectors includes a stud welding machine 1 and a control box 2. The stud welding machine 1 and the control box 2 are electrically connected to a welding clamp 32. The welding clamp 32 is mounted on the welding clamp housing 31 of a second feeder 19. The second feeder 19 is provided with a second feeding frame 16 and a second positioning frame 18. A translation slider mounted at the bottom of the second feeding frame 16 cooperates with a translation guide rail mounted at the top of the second positioning frame 18. A slider 13 connected to the top of the welding clamp housing 31 is equipped with a guide rail 14. A lifting motor 15 is connected to the central axis of the welding clamp housing 31 via a lead screw 34. The bottom of the housing 31 is connected to the clamping cylinder 12 via the fixed support 33. The second gripper 11 of the clamping cylinder 12 delivers the steel bar 20 to be welded to the top of the template 35. After welding, it becomes the welded steel bar 8. The top of the template 35 is embedded with the flux 9 contained inside the box cover. The bottom of the template 35 passes through the box cover, platform plate 38, and positioning frame 36 and is supported by the positioning plate 37. The positioning plate 37 is set at the bottom of the platform plate 38 via the threaded rod 48. The positioning plate 38 is equipped with a G-clamp 49. The G-clamp 49 is electrically connected to the stud welding machine 1 via the ground wire 50.

[0016] There are two sets of feeders. The second feeder 19 is symmetrically arranged with the first feeder 3 along the length of the template 35. The first feeder 3 is equipped with a feeding frame 28 and a positioning frame 30. The translation slider 51 mounted at the bottom of the feeding frame 28 cooperates with the translation guide rail 52 mounted at the top of the positioning frame 30. The top of the feeding frame 28 is equipped with a lifting motor 27. The first gripper 24 mounted on the clamping cylinder 26 feeds the steel bar to be welded 25 to the top of the template 35. After welding, it becomes the welded steel bar 7. The positioning plate 38 is equipped with a G-clamp 47. The G-clamp 47 is electrically connected to the stud welding machine 1 through the ground wire 46.

[0017] The box cover is divided into half-box cover 6 and half-box cover 22 along the diagonal. Half-box cover 6 is equipped with a first cylinder 5, and half-box cover 22 is equipped with a second cylinder 21. When the first cylinder 5 and the second cylinder 21 extend, half-box cover 6 and half-box cover 22 close. When the first cylinder 5 and the second cylinder 21 retract, half-box cover 6 and half-box cover 22 separate, which facilitates maintenance and replacement of new flux.

[0018] A feeding cylinder 29 is installed between the feeding frame 28 and the positioning frame 30, and a feeding cylinder 17 is installed between the feeding frame 16 and the positioning frame 18. When the feeding cylinder 29 and the feeding cylinder 17 retract, they are ready to load new steel bars; when the feeding cylinder 29 and the feeding cylinder 17 extend, they deliver the loaded steel bars to the welding position.

[0019] Platform plate 38 is located in the middle of welding platform 4. Support 40 is provided at the bottom of welding platform 4. Push-pull plate 45 is connected to the front end of feeding cylinder 1 29 and feeding cylinder 2 17, which can directly drive the push-pull plate. The structure is compact.

[0020] The platform plate 38 has multiple through holes 39. Below the through holes 39 is a collection hopper 41 with a positioning tube 42. When the half-lid 6 and the half-lid 22 are separated, the flux 9 flows into the collection hopper 41 through the through holes 39. After the flux 9 flows through the filter cylinder 43, it falls onto the conveyor belt 44. The oxide scale generated during stud welding is filtered out. The conveyor belt 44 recycles the clean flux, reducing production costs.

[0021] During operation, the first gripper 24 and the second gripper 11 simultaneously deliver the reinforcing bar to be welded to the top of the template 35, ensuring precise positioning. The top of the template 35 is embedded with the flux 9 contained inside the box cover. The bottom of the template 35 passes through the box cover, platform plate 38, and positioning frame 36 and is supported by the positioning plate 37, ensuring the template 35 is securely placed. When energized, an electric arc is generated between the reinforcing bar to be welded and the top of the template 35. When the joint surface begins to melt, the first gripper 24 and the second gripper 11 rapidly descend, applying downward pressure to the reinforcing bar, causing the reinforcing bar and the template 35 to be quickly pressed together to form a weld, ensuring a firm connection. When welding is completed, the first gripper 24 and the second gripper 11 simultaneously return to their initial positions, and a new reinforcing bar to be welded is inserted. The flux 9 contained in the box cover isolates the air, preventing oxidation of the molten pool. The flux covers the surface of the molten pool, reducing metal evaporation and porosity formation, reducing residual stress, and ensuring welding quality.

[0022] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, and for those of ordinary skill in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details.

Claims

1. A stud welding device for pre-embedded connectors, characterized in that: The device includes a stud welding machine and a control box. The stud welding machine and control box are electrically connected to a welding clamp. The welding clamp is mounted on the welding clamp housing of a feeder. The feeder has a feeding frame and a positioning frame. A translation slider mounted at the bottom of the feeding frame cooperates with a translation guide rail mounted at the top of the positioning frame. The slider connected to the top of the welding clamp housing is equipped with a guide rail. The bottom of the welding clamp housing is connected to a clamping cylinder via a fixed support. The clamping cylinder's grippers feed the reinforcing bar to be welded to the top of the template. The top of the template is embedded with flux contained inside a box cover. The bottom of the template passes through the box cover, platform plate, and positioning frame and is supported by a positioning plate. The positioning plate is set at the bottom of the platform plate via a threaded rod. The positioning plate is electrically connected to the stud welding machine via a ground wire.

2. The stud welding device for pre-embedded connectors according to claim 1, characterized in that: The number of feeders is two sets, and the two sets of feeders are symmetrically arranged along the length of the template.

3. The stud welding device for pre-embedded connectors according to claim 1, characterized in that: The box cover is divided into a first half-box cover and a second half-box cover along the diagonal. The first half-box cover is equipped with a first cylinder, and the second half-box cover is equipped with a second cylinder.

4. The stud welding device for pre-embedded connectors according to claim 1, characterized in that: A feeding cylinder is provided between the feeding frame and the positioning frame.

5. The stud welding device for pre-embedded connectors according to claim 1, characterized in that: The platform plate is positioned in the middle of the welding platform.

6. The stud welding device for pre-embedded connectors according to claim 5, characterized in that: The platform plate has multiple through holes, and a hopper with a positioning tube is provided below the through holes. The flux flows through the filter cylinder and falls onto the conveyor belt.

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