A welding device for building cast-in-place pile reinforcement cage

Abstract

The application discloses a kind of welding devices of building bored pile reinforcement cage, including base, and rotating ring, rotating ring is equipped with guide seat and winding drum, guide seat is equipped with welding disc, welding disc rotates with rotating ring, and guide winding steel bar stress is contacted with steel bar pole to realize welding.The building bored pile reinforcement cage welding device is provided with a conductive part outside the copper disc, so that the conductive part can be replaced in time after wear, so as to avoid expensive copper disc replacement and save capital investment.At the same time, the conductive part cooperates with the retaining assembly to stably install it on the outer wall of the copper disc.When the conductive part and the copper disc expand due to heat, the conductive part can move a certain distance after heating through the cooperation of the elastic area and the limiting hole, avoiding the conductive part from breaking due to overheating, protecting the conductive part, prolonging the service life of the conductive part and facilitating the replacement of the conductive part.

Description

Technical Field

[0001] This invention relates to roll welding machine technology, and more particularly to a welding device for steel reinforcement cages of cast-in-place piles in buildings. Background Technology

[0002] When welding reinforcing cages, a roll welding machine is required. The fixed welding electrode of the roll welding machine is a consumable part. It is a circular disc structure, mostly made of copper. Its function is to conduct electricity and position the main reinforcing bars. It needs to withstand a large current during operation and needs to rub against the reinforcing bars. The working conditions are very harsh, and it is very easy to wear out. When the outer diameter decreases by 3-4mm, it must be replaced or repaired.

[0003] The integrally cast welded copper disc will wear down after a period of use. When the outer diameter is reduced by 3-4mm, it must be repaired. It is difficult for enterprises to repair it themselves. Moreover, due to the poor precision of the mating surface, it is prone to heat generation, resulting in a short service life and high overall cost. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this invention proposes a welding device for the reinforcing cage of a cast-in-place pile.

[0005] A welding device for a steel reinforcement cage of a cast-in-place pile, comprising:

[0006] The base has a first main body of a roll welding machine and a second main body of a roll welding machine that cooperates with the first main body of the roll welding machine. A steel bar that needs to be welded together is placed between the first main body of the roll welding machine and the second main body of the roll welding machine. A first support member and a second support member are provided between the first main body of the roll welding machine and the second main body of the roll welding machine.

[0007] A rotating ring is set on the first body of the roll welding machine. The rotating ring is provided with a guide seat and a winding drum. The winding drum is used to hold the wound steel bar wound on the steel bar rod. The guide seat is used to guide the wound steel bar and weld the wound steel bar to the steel bar rod. The guide seat is provided with a welding disc. The welding disc rotates with the rotating ring, guiding the wound steel bar to be stressed and contact with the steel bar rod to achieve welding.

[0008] The welding disk is composed of a copper disk and a conductive component. The conductive component is wrapped around the outside of the copper disk. A movable groove with an opening on one side is formed in the middle of the copper disk. The copper disk is provided with an installation groove and multiple dividing grooves. The dividing grooves divide the outer wall of the copper disk into multiple protrusions. The protrusions are spaced apart from the dividing grooves. A first annular groove is formed on the outer wall of the copper disk. The first annular groove is connected to the dividing grooves.

[0009] The conductive element is arranged in an arc shape, with its head and tail close together and disposed in the mounting groove. The mounting groove is provided with a retaining component for limiting the position of the conductive element, and a second annular groove is formed on the conductive element to cooperate with the first annular groove.

[0010] In this invention, the cross-section of the dividing groove is V-shaped.

[0011] In this invention, the protrusion is provided with a first arc-shaped surface, which is located within the dividing groove.

[0012] In this invention, the movable groove of the copper disk is provided with a retaining protrusion, the retaining protrusion is located at the lower end of the mounting groove, baffles are formed on both sides of the mounting groove, the upper end of the mounting groove is open, and the cross-section of the mounting groove is set as a trapezoid.

[0013] In this invention, the retaining assembly comprises a rotating member, a limiting member, and symmetrically arranged sliding members. The sliding members are disposed inside the mounting groove, the rotating member is disposed in the middle of the retaining protrusion, the limiting member is disposed on the baffle, and the sliding members are located between the rotating member and the limiting member.

[0014] In this invention, the mounting groove has a first inclined surface inside, the first inclined surface has a limiting protrusion, the baffle has a vertical groove and a horizontal groove, and the baffle has a fixing body inserted into the vertical groove.

[0015] In this invention, the sliding member is provided with a second inclined surface that cooperates with the first inclined surface, a third inclined surface that cooperates with the rotating member, and a sliding block disposed in the transverse groove. The rotating member is provided with a conical surface that cooperates with the third inclined surface.

[0016] In this invention, the conductive component is composed of a first end plate, a second end plate and an arc-shaped plate that cooperates with the protrusion, and an elastic part that cooperates with the dividing groove. An elastic region is formed in the middle of the elastic part. The elastic part is composed of a first arc-shaped segment and a symmetrically arranged inclined plate and a second arc-shaped segment. The diameter of the second arc-shaped segment is smaller than the diameter of the arc-shaped surface. An elastic gap is formed between the second arc-shaped segment and the arc-shaped surface.

[0017] In this invention, both the first end plate and the second end plate are provided with limiting holes that cooperate with the limiting protrusion, and the height of the limiting hole is greater than the height of the limiting protrusion.

[0018] In this invention, the first end plate and the second end plate are provided with clearance notches on both sides, and the baffle is disposed within the clearance notches.

[0019] The welding device for the reinforcing cage of a cast-in-place pile, as described in this invention, has the following advantages: By installing a conductive element on the outside of the copper disc, the device allows for timely replacement of the conductive element after wear, thus avoiding expensive copper disc replacements and saving capital. Simultaneously, the conductive element, in conjunction with the retaining assembly, ensures stable installation onto the outer wall of the copper disc. When the conductive element and copper disc expand due to heat, the elastic area and limiting hole allow the conductive element to move a certain distance after heating, preventing breakage due to excessive tightness caused by heat. This protects the conductive element, extends its service life, and facilitates its replacement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the welding device structure for the steel reinforcement cage of the building cast-in-place pile of the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the rotating ring structure in the diagram;

[0022] Figure 3 for Figure 2 A schematic diagram of the welding disk structure in the diagram;

[0023] Figure 4 for Figure 3 A schematic diagram of the structure in another direction;

[0024] Figure 5 for Figure 4 Exploded view;

[0025] Figure 6 for Figure 4 The main perspective view in the middle;

[0026] Figure 7 for Figure 6 Enlarged view of section A in the image;

[0027] Figure 8 for Figure 5 A schematic diagram of the retaining component structure;

[0028] Figure 9 for Figure 8 Exploded view;

[0029] Figure 10 for Figure 5 Cross-sectional view of the copper disk structure in the image;

[0030] Figure 11 for Figure 10 Enlarged view of section B in the image;

[0031] Figure 12 for Figure 5 A schematic diagram of the conductive components in the diagram;

[0032] Figure 13 for Figure 12 The main view;

[0033] Figure 14 for Figure 12 A magnified view of section C in the image.

[0034] In the diagram: 1. Base; 2. Rotating ring; 3. First main body of the welding machine; 4. Second main body of the welding machine; 5. Rebar rod; 6. First support component; 7. Second support component; 8. Guide seat; 9. Winding drum; 10. Welding disc; 11. Copper disc; 12. Conductive component; 13. Movable groove; 14. Rotating component; 15. Mounting groove; 16. Dividing groove; 17. Protrusion; 18. First annular groove; 19. Holding assembly; 20. First end plate; 21. Second end plate; 22. Elastic part; 23. Arc-shaped surface; 24. Second annular groove; 25. Holding protrusion; 26. Baffle; 27. Threaded hole; 28. Threaded rod; 29. ​​Hexagonal block. 29. Conical surface; 30. Third inclined surface; 31. Sliding component; 32. Sliding block; 33. Horizontal groove; 34. First inclined surface; 35. Limiting protrusion; 36. Limiting component; 37. Disconnection area; 38. Vertical groove; 39. Fixing body; 40. Arc-shaped body; 41. Mounting body; 42. Arc-shaped opening; 43. First fixing hole; 44. Second fixing hole; 45. Fixing pin; 46. Second inclined surface; 47. Vertical surface; 48. Arc plate; 49. Elastic area; 50. First arc segment; 51. Inclined plate; 52. Second arc segment; 53. Avoidance notch; 54. Elastic gap; 55. Limiting hole; 56. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0036] like Figures 1 to 14 As shown, the welding device for the reinforcing cage of the cast-in-place pile of the present invention includes a base 1 and a rotating ring 2. The base 1 is provided with a first body 3 of a roll welding machine and a second body 4 of a roll welding machine that cooperates with the first body 3. A reinforcing bar 5 to be welded together is placed between the first body 3 and the second body 4. A first support member 6 and a second support member 7 are provided between the first body 3 and the second body 4. The first support member 6 and the second support member 7 are used to support the welded reinforcing cage.

[0037] A rotating ring 2 is provided on the first main body 3 of the roll welding machine. The rotating ring 2 is equipped with a guide seat 8 and a winding drum 9. The winding drum 9 is used to hold the wound steel bars wound on the steel bar rod 5. The guide seat 8 is used to guide the wound steel bars and weld them to the steel bar rod 5. A welding disc 10 is provided on the guide seat 8. The welding disc 10 rotates with the rotating ring 2, guiding the wound steel bars to contact the steel bar rod 5 and achieve welding. The rotating ring 2 can rotate on the first main body 3 of the roll welding machine, thereby driving the guide seat 8 and the winding drum 9 to rotate, thus welding the steel bar rod 5 located in the middle.

[0038] Other structures of the roll welding machine in this application can be referred to in the prior art. To avoid repeating the prior art, they will not be described in detail here.

[0039] The welding disc 10 consists of a copper disc 11 and a conductive element 12. The welding disc 10 is subjected to force to pull and wrap the reinforcing bar, so that the wrapped reinforcing bar is in contact with the reinforcing bar rod 5. Then, current is applied to realize the welding of the wrapped reinforcing bar onto the reinforcing bar rod 5, connecting multiple reinforcing bar rods 5 together to form a reinforcing cage.

[0040] The conductive component 12 is wrapped around the outside of the copper disk 11. A movable groove 13 with an opening on one side is formed in the middle of the copper disk 11. The movable groove 13 is used by the operator to manually rotate the rotating component 14.

[0041] The copper disk 11 is provided with a mounting groove 15 and multiple dividing grooves 16. The dividing grooves 16 divide the outer wall of the copper disk 11 into multiple protrusions 17, and the mounting groove 15 is located on one of the protrusions 17. The protrusions 17 and the dividing grooves 16 are spaced apart. A first annular groove 18 is formed on the outer wall of the copper disk 11, and the first annular groove 18 communicates with the dividing grooves 16.

[0042] The mounting groove 15 is used to connect the two ends of the conductive element 12 with the retaining assembly 19, so that the first end plate 20 and the second end plate 21 are confined within the mounting groove 15, and the conductive element 12 can move when it expands due to heat.

[0043] The cross-section of the dividing groove 16 is V-shaped. The dividing groove 16 is used to cooperate with the elastic part 22 on the conductive element 12, so that it is confined within it. When the copper disk 11 rotates, the conductive element 12 is kept rotating with the disk, thus preventing severe wear on one part of the conductive element 12. An arc-shaped surface 23 is provided on the protrusion 17, and the arc-shaped surface 23 is located within the dividing groove 16.

[0044] Furthermore, since the dividing groove 16 is set in a "V" shape, the maximum width of the dividing groove 16 is less than the diameter of the reinforcing bar 5. This avoids the reinforcing bar 5 from being directly inserted into the dividing groove 16 when the welding disc 10 rotates before the winding reinforcing bar is placed in the second annular groove 24, thus preventing the reinforcing bar 5 from rotating with the welding disc 10.

[0045] The movable groove 13 of the copper plate 11 is provided with a retaining protrusion 25, which is located at the lower end of the mounting groove 15. Baffles 26 are formed on both sides of the mounting groove 15, and the upper end of the mounting groove 15 is open. The cross-section of the mounting groove 15 is truncated into a trapezoidal shape. A threaded hole 27 is formed in the middle of the retaining protrusion 25. The rotating component 14 is composed of a threaded rod 28 and a hexagonal block 29. The threaded rod 28 is provided with a tapered surface 30, which cooperates with the third inclined surface 31. The threaded rod 28 is disposed in the threaded hole 27. When the rotating component 14 is rotated, it can move upward and push the symmetrically arranged sliding component 32. The sliding block 33 on the retaining sliding component 32 slides in the transverse groove 34. The sliding block 33 pushes the first end plate 20 and the second end plate 21 closer to the first inclined surface 35, thereby causing the first end plate 20 and the second end plate 21 to deform under force and generate elastic potential energy.

[0046] When it is necessary to replace the conductive component 12, simply rotate the rotating component 14 in the opposite direction. Under the elastic potential energy generated by the first end plate 20 and the second end plate 21, the sliding component 32 will be pushed to reset. Then the first end plate 20 and the second end plate 21, which are in the mounting groove 15, can be taken out without being restricted by the limiting protrusion 36.

[0047] The conductive element 12 is arranged in an arc shape, with its head and tail close to the mounting groove 15. The mounting groove 15 is provided with a retaining component 19 for limiting the position of the conductive element 12. A second annular groove 24 is formed on the conductive element 12 to cooperate with the first annular groove 18. The second annular groove 24 is used to place the wound steel bar and can limit the position of the wound steel bar to prevent the wound steel bar from shifting position.

[0048] When the conductive element 12 is not installed on the copper disk 11, the conductive element 12 is arranged in an arc shape. When it is installed on the copper disk 11, the conductive element 12 is kept in a circular shape. However, the first end plate 20 and the second end plate 21 on the conductive element 12 do not contact each other, but form a disconnected area 38. The limiting element 37 is located within the disconnected area 38.

[0049] The retaining assembly 19 consists of a rotating member 14, a limiting member 37, and a symmetrically arranged sliding member 32. The sliding member 32 is disposed inside the mounting groove 15, the rotating member 14 is disposed in the middle of the retaining protrusion 25, the limiting member 37 is disposed on the baffle 26, and the sliding member 32 is located between the rotating member 14 and the limiting member 37.

[0050] The mounting groove 15 has a first inclined surface 35 inside, and a limiting protrusion 36 is provided on the first inclined surface 35. The baffle 26 has a vertical groove 39 and a horizontal groove 34, and a fixing body 40 inserted into the vertical groove 39 is provided on the baffle 26.

[0051] The limiting member 37 consists of an arc-shaped body 41 and symmetrically arranged mounting bodies 42. An arc-shaped opening 43 is formed in the middle of the arc-shaped body 41, which mates with the second annular groove 24. A fixing body 40 is provided at the lower end of the mounting body 42, and the fixing body 40 is disposed in the vertical groove 39. The fixing body 40 is provided with a first fixing hole 44, and the baffle 26 is provided with a second fixing hole 45. A fixing pin 46 is provided in the first fixing hole 44 and the second fixing hole 45, thereby positioning the limiting member 37 at the upper end of the mounting groove 15.

[0052] The sliding member 32 is provided with a second inclined surface 47 that cooperates with the first inclined surface 35, a third inclined surface 31 that cooperates with the rotating member 14, and a sliding block 33 provided in the transverse groove 34. The rotating member 14 is provided with a conical surface 30 that cooperates with the third inclined surface 31.

[0053] When the rotating member 14 rotates, it can push the sliding member 32, causing the vertical surface 48 on the sliding member 32 to push the first end plate 20 or the second end plate 21. Then, since the mounting groove 15 is provided with the first inclined surface 35, the second inclined surface 47 will come into contact with the first end plate 20 or the second end plate 21 again. The second inclined surface 47 pushes the first end plate 20 or the second end plate 21 to deform under force. The first end plate 20 and the second end plate 21 come into contact with the first inclined surface 35, causing the originally vertical first end plate 20 and the second end plate 21 to change to an inclined state, thereby generating elastic potential energy.

[0054] The conductive element 12 consists of a first end plate 20, a second end plate 21, an arc-shaped plate 49 that mates with the protrusion 17, and an elastic part 22 that mates with the dividing groove 16. An elastic region 50 is formed in the middle of the elastic part 22, which allows the conductive element 12 to expand and move under pressure. The elastic part 22 consists of a first arc-shaped segment 51, a symmetrically arranged inclined plate 52, and a second arc-shaped segment 53. The diameter of the second arc-shaped segment 53 is smaller than the diameter of the arc-shaped surface 23. An elastic gap 55 is formed between the second arc-shaped segment 53 and the arc-shaped surface 23. The elastic gap 55 allows the conductive element 12 to move when compressed, preventing excessive compression due to immobility and thus affecting its service life.

[0055] Both the first end plate 20 and the second end plate 21 are provided with limiting holes 56 that mate with the limiting protrusion 36. The height of the limiting hole 56 is greater than the height of the limiting protrusion 36, so that the limiting protrusion 36 can only restrict the direct removal of the conductive component 12, but cannot restrict the slight expansion displacement of the guide component when heated. The first end plate 20 and the second end plate 21 are provided with clearance notches 54 on both sides, and the baffle 26 is disposed in the clearance notch 54. The clearance notch 54 is used to facilitate the installation of the conductive component 12.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding device for a steel reinforcement cage of a cast-in-place pile, characterized in that, include: The base has a first main body of a roll welding machine and a second main body of a roll welding machine that cooperates with the first main body of the roll welding machine. A steel bar that needs to be welded together is placed between the first main body of the roll welding machine and the second main body of the roll welding machine. A first support member and a second support member are provided between the first main body of the roll welding machine and the second main body of the roll welding machine. A rotating ring is set on the first body of the roll welding machine. The rotating ring is provided with a guide seat and a winding drum. The winding drum is used to hold the wound steel bar wound on the steel bar rod. The guide seat is used to guide the wound steel bar and weld the wound steel bar to the steel bar rod. The guide seat is provided with a welding disc. The welding disc rotates with the rotating ring, guiding the wound steel bar to be stressed and contact with the steel bar rod to achieve welding. The welding disk is composed of a copper disk and a conductive component. The conductive component is wrapped around the outside of the copper disk. A movable groove with an opening on one side is formed in the middle of the copper disk. The copper disk is provided with an installation groove and multiple dividing grooves. The dividing grooves divide the outer wall of the copper disk into multiple protrusions. The protrusions are spaced apart from the dividing grooves. A first annular groove is formed on the outer wall of the copper disk. The first annular groove is connected to the dividing grooves. The conductive element is arranged in an arc shape, with its head and tail close to each other and disposed in the mounting groove. The mounting groove is provided with a retaining component for limiting the position of the conductive element, and a second annular groove is formed on the conductive element to cooperate with the first annular groove. The movable groove of the copper disc is provided with a retaining protrusion, which is located at the lower end of the mounting groove. Baffles are formed on both sides of the mounting groove, and the upper end of the mounting groove is open. The cross-section of the mounting groove is set as a trapezoid. The retaining assembly consists of a rotating member, a limiting member, and symmetrically arranged sliding members. The sliding members are disposed inside the mounting groove, the rotating member is disposed in the middle of the retaining protrusion, the limiting member is disposed on the baffle, and the sliding members are located between the rotating member and the limiting member. The mounting groove has a first inclined surface inside, and a limiting protrusion is provided on the first inclined surface. The baffle has a vertical groove and a horizontal groove, and a fixing body is provided on the baffle that is inserted into the vertical groove. The sliding member is provided with a second inclined surface that cooperates with the first inclined surface, a third inclined surface that cooperates with the rotating member, and a sliding block disposed in the transverse groove. The rotating member is provided with a conical surface that cooperates with the third inclined surface.

2. The welding device for the reinforcing cage of a cast-in-place pile according to claim 1, characterized in that, The cross-section of the dividing groove is V-shaped.

3. The welding device for the reinforcing cage of a cast-in-place pile according to claim 2, characterized in that, The protrusion is provided with a first arc-shaped surface, which is located within the dividing groove.

4. The welding device for the reinforcing cage of a cast-in-place pile according to claim 1, characterized in that, The conductive component consists of a first end plate, a second end plate and an arc-shaped plate that cooperates with the protrusion, and an elastic part that cooperates with the dividing groove. An elastic region is formed in the middle of the elastic part. The elastic part consists of a first arc segment and a symmetrically arranged inclined plate and a second arc segment. The diameter of the second arc segment is smaller than the diameter of the arc surface, and an elastic gap is formed between the second arc segment and the arc surface.

5. The welding device for the reinforcing cage of a cast-in-place pile according to claim 4, characterized in that, Both the first end plate and the second end plate are provided with limiting holes that cooperate with the limiting protrusions, and the height of the limiting holes is greater than the height of the limiting protrusions.

6. The welding device for the reinforcing cage of a cast-in-place pile according to claim 5, characterized in that, The first end plate and the second end plate have clearance notches on both sides, and the baffle is disposed within the clearance notches.

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