A welding structure for a steel skeleton pipe

Abstract

The present invention discloses a welding structure for a steel skeleton pipe, comprising: a mounting seat for being fixed to the end face of a welding system, an insulating plate connected to the mounting seat, and a limiting seat mounted on the insulating plate. It further includes a conductive plate and a welding wheel assembly mounted on the conductive plate, and also includes an adjusting screw structure. The adjusting screw structure penetrates through the welding wheel assembly, the conductive plate, and the limiting seat and is threadedly connected to the insulating plate. By rotating the adjusting screw structure, the positions of the conductive plate and the welding wheel assembly can be adjusted. The operation of the present invention is simple and the disassembly is convenient, and it can be used to adjust the spiral angle.

Description

Technical Field

[0001] The present invention relates to the technical field of skeleton welding in steel skeleton polyethylene pipe production equipment, and particularly relates to a welding structure for steel skeleton pipes. Background Art

[0002] The existing skeleton welding system used in steel skeleton polyethylene pipe production equipment has a relatively simple structure and is a cantilever single-side pressing structure. The pressing force of the pressing plate is adjusted by four mounting screws of two pressing plates to adjust the spiral angle. This structure is troublesome and unstable to adjust. At the same time, the welding wheels of the original structure use brass. Although brass has good electrical conductivity and heat conduction effect, its strength is low. During the welding process, the weft wire rotates and tightens, and relatively deep wear marks will be formed on the welding wheel under the action of force, and the service time is short. There will be relatively frequent repairs and replacements during operation. Summary of the Invention

[0003] In order to solve the problems of difficult adjustment of the spiral angle of the existing welding structure, unstable welding, and serious wear and frequent repairs, the present invention provides a welding structure for steel skeleton pipes.

[0004] To achieve the above object, the technical solutions adopted by the present invention are as follows:

[0005] A welding structure for steel skeleton pipes includes: a mounting seat for fixing on the end face of the welding system, an insulating plate connected to the mounting seat, and a limiting seat mounted on the insulating plate. It also includes a conductive plate and a welding wheel assembly mounted on the conductive plate, and also includes an adjusting screw rod structure. The adjusting screw rod structure passes through the welding wheel assembly, the conductive plate, and the limiting seat and is threadedly connected to the insulating plate. By rotating the adjusting screw rod structure, the positions of the conductive plate and the welding wheel assembly are adjusted.

[0006] Further: The welding wheel assembly includes an inner welding wheel, an alloy ring, and an outer welding wheel. A clamping platform is formed on one side of the conductive plate. One side of the inner welding wheel is clamped on the clamping platform. A ring embedding platform is formed on the other side of the inner welding wheel. One side of the outer welding wheel fits with the ring embedding platform. The alloy ring is embedded on the ring embedding platform. The alloy ring is formed with a U-shaped groove to limit the movement of the weft wire along the groove bottom.

[0007] Further: The inner welding wheel and the outer welding wheel are fixed together by bolts.

[0008] Further: Openings for the adjusting screw rod structure to pass through are formed on the inner welding wheel, the outer welding wheel, the conductive plate, the limiting seat, and the insulating plate.

[0009] Further: The adjusting screw structure includes a first screw, a second screw, and a retaining disc disposed between the first screw and the second screw. It also includes a bearing and a fastening flange provided on the first screw. The inner ring of the bearing is connected to the first screw. The conductive plate, the inner side welding wheel, and the outer side welding wheel are disposed between the fastening flange and the retaining disc, and the bearing passes through the openings of the three. The inner side welding wheel and the outer side welding wheel are connected to the outer ring of the bearing. The second screw passes through the openings of the limit seat and the insulating plate and is threadedly connected to the insulating plate.

[0010] Further: The adjusting screw structure further includes a disc spring. The disc spring is disposed between the outer side welding wheel and the fastening flange and sleeved on the first screw.

[0011] Further: A hexagonal hole is provided at the top end of the first screw.

[0012] Further: The limit seat includes a limit plate and a pair of limit ears formed on the limit plate. The conductive plate is disposed between the two limit ears to limit the rotation of the conductive plate. Fastening bolts are provided on the sides of the two limit ears to fasten the conductive plate.

[0013] Further: The conductive plate is provided with wiring holes.

[0014] Compared with the prior art, the technical progress achieved by the present invention is as follows:

[0015] The alloy ring of the welding wheel assembly of the present invention is made of hard alloy steel. Therefore, the alloy ring of the present invention is wear-resistant and can be used for a long time. Moreover, the present invention can more conveniently change the positions of the conductive plate and the welding wheel assembly by adjusting the screw structure to adjust the helix angle. The overall structure of the present invention is stable and there will be no problem of frequent maintenance. At the same time, the present invention is simple to disassemble and easy to replace parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the drawings:

[0018] Figure 1 is the overall structure diagram of the present invention;

[0019] Figure 2 is the exploded view of the present invention;

[0020] Figure 3 is the structure diagram of the limit seat of the present invention;

[0021] Figure 4Structural diagram of the conductive plate, welding wheel assembly and adjusting screw structure of the present invention;

[0022] Figure 5 Exploded view of the conductive plate, welding wheel assembly and adjusting screw structure of the present invention;

[0023] Figure 6 Structural diagram of the welding wheel assembly of the present invention.

[0024] In the figure:

[0025] 1 - mounting base; 2 - insulating plate; 3 - limiting seat; 301 - limiting plate; 302 - limiting ear; 303 - fastening bolt; 4 - conductive plate; 401 - clamping platform; 402 - wiring hole; 5 - welding wheel assembly; 501 - inner welding wheel; 502 - ring - embedding platform; 503 - alloy ring; 504 - outer welding wheel; 6 - adjusting screw structure; 601 - first screw; 602 - second screw; 603 - retaining disc; 604 - bearing; 605 - fastening flange; 606 - disc spring; 7 - bolt; 8 - opening. Detailed implementation manners

[0026] The following specific embodiments can be combined with each other. For the same or similar concepts or processes, they may not be repeated in some embodiments. The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0027] Combined with Figures 1 to 6 As shown, a welding structure for a steel - framed pipe includes: a mounting base 1 for fixing on the end face of the welding system. In this embodiment, the entire structure can be installed in a fixed position by using screws through the long holes on the mounting base 1, an insulating plate 2 connected to the mounting base 1, and a limiting seat 3 installed on the insulating plate 2. The insulating plate 2 is used to insulate the entire structure to avoid the loss of welding current and ensure the strength of the welding point. The mounting base 1, the insulating plate 2, and the limiting seat 3 can be connected together by bolts; it also includes a conductive plate 4 and a welding wheel assembly 5 installed on the conductive plate 4, and an adjusting screw structure 6. The adjusting screw structure 6 passes through the welding wheel assembly 5, the conductive plate 4, and the limiting seat 3 and is thread - connected to the insulating plate 2. By rotating the adjusting screw structure 6, the positions of the conductive plate 4 and the welding wheel assembly 5 can be adjusted.

[0028] Specifically, referring to Figure 5 and Figure 6, the welding wheel assembly 5 includes an inner welding wheel 501, an alloy ring 503, and an outer welding wheel 504. A clamping platform 401 is formed on one side of the conductive plate 4. One side of the inner welding wheel 501 is clamped on the clamping platform 401. A ring-inserting platform 502 is formed on the other side of the inner welding wheel 501. One side of the outer welding wheel 504 is attached to the ring-inserting platform 502. The alloy ring 503 is inserted into the ring-inserting platform 502. The alloy ring 503 is formed with a U-shaped groove to restrict the movement of the weft wire along the groove bottom. In this embodiment, the inner welding wheel 501 and the outer welding wheel 504 are fixed together by bolts 7, which is convenient for disassembly. The integrated welding wheel assembly 5 is clamped on the conductive plate 4 through the clamping platform 401 and is attached to the conductive plate 4. The conductive plate 4 is used to conduct the welding current to the welding wheel assembly 5 through the copper bare wire. The welding wheel assembly 5 performs discharge welding by rolling the weft wire at the intersection of the warp threads to form a steel mesh framework by welding the warp and weft threads. In this embodiment, the alloy ring 503 is selected as hard alloy steel, and the hard alloy steel has higher strength, which can avoid frequent maintenance.

[0029] Openings 8 for the adjusting screw structure 6 to pass through are formed on the inner welding wheel 501, the outer welding wheel 504, the conductive plate 4, the limiting seat 3, and the insulating plate 2. The adjusting screw structure 6 includes a first screw 601, a second screw 602, and a retaining disc 603 provided between the first screw 601 and the second screw 602. It also includes a bearing 604 and a fastening flange 605 provided on the first screw 601. In this embodiment, the bearing 604 can be selected as a self-lubricating bearing. The inner ring of the bearing 604 is connected to the first screw 601. The conductive plate 4, the inner welding wheel 501, and the outer welding wheel 504 are placed between the fastening flange 605 and the retaining disc 603, and the bearing 604 passes through the openings 8 of the three. The inner welding wheel 501 and the outer welding wheel 504 are connected to the outer ring of the bearing 604. The second screw 602 passes through the openings 8 of the limiting seat 3 and the insulating plate 2 and is threadedly connected to the insulating plate 2.

[0030] During operation, the first screw 601 can be easily rotated to move the conductive plate 4, the welding wheel assembly 5, and the adjusting screw structure 6 forward or backward simultaneously, so as to change the position of the welding wheel assembly 5 to adjust the helix angle.

[0031] In order to reduce buffering and prevent loosening by pre-tightening, the adjusting screw structure 6 in this embodiment further includes a disc spring 606. The disc spring 606 is placed between the outer welding wheel 504 and the fastening flange 605 and sleeved on the first screw 601.

[0032] In order to facilitate adjustment and disassembly, a hexagonal hole is opened at the top of the first screw 601.

[0033] The limit seat 3 includes a limit plate 301 and a pair of limit ears 302 formed on the limit plate 301. The conductive plate 4 is disposed between the two limit ears 302 to limit the rotation of the conductive plate 4. Tightening bolts 303 are provided on both sides of the two limit ears 302 to fasten the conductive plate 4 and prevent the conductive plate 4 from shaking during rotation. A wiring hole 402 is also formed in the conductive plate 4 for installing the bare wire for conduction. The bare wire can use a wire nose and is installed and fixed with screws.

[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of the protection of the claims of the present invention.

Claims

1. A welding structure for a steel skeleton pipe, characterized in that, Comprising: A mounting base for fixing on the end face of a welding system, an insulating plate connected to the mounting base, and a limiting seat mounted on the insulating plate. It further includes a conductive plate and a welding wheel assembly mounted on the conductive plate, and an adjusting screw structure. The adjusting screw structure passes through the welding wheel assembly, the conductive plate, and the limiting seat and is threadedly connected to the insulating plate. The position of the conductive plate and the welding wheel assembly is adjusted by rotating the adjusting screw structure; The welding wheel assembly includes an inner welding wheel, an alloy ring, and an outer welding wheel. A clamping platform is formed on one side of the conductive plate. One side surface of the inner welding wheel is clamped on the clamping platform. A ring embedding platform is formed on the other side surface of the inner welding wheel. One surface of the outer welding wheel is attached to the ring embedding platform. The alloy ring is embedded on the ring embedding platform. The alloy ring is formed with a U-shaped groove to limit the movement of the weft wire along the groove bottom. The alloy ring is made of hard alloy steel. The inner welding wheel and the outer welding wheel are fixed together by bolts; Openings for the adjusting screw structure to pass through are formed on the inner welding wheel, the outer welding wheel, the conductive plate, the limiting seat, and the insulating plate. The adjusting screw structure includes a first screw, a second screw, and a retaining disc provided between the first screw and the second screw. It also includes a bearing and a fastening flange arranged on the first screw. The inner ring of the bearing is connected to the first screw. The conductive plate, the inner welding wheel, and the outer welding wheel are placed between the fastening flange and the retaining disc. The bearing passes through the openings of the three. The inner welding wheel and the outer welding wheel are connected to the outer ring of the bearing. The second screw passes through the openings of the limiting seat and the insulating plate and is threadedly connected to the insulating plate.

2. A welding structure for a steel skeleton pipe according to claim 1, characterized in that: The adjusting screw structure further includes a disc spring. The disc spring is sleeved on the first screw and placed between the outer welding wheel and the fastening flange.

3. A welding structure for a steel skeleton pipe according to claim 2, characterized in that: A hexagonal hole is opened at the top end of the first screw.

4. A welding structure for a steel skeleton pipe according to claim 3, characterized in that: The limiting seat includes a limiting plate and a pair of limiting ears formed on the limiting plate. The conductive plate is arranged between the two limiting ears to limit the rotation of the conductive plate. Fastening bolts are provided on the side surfaces of the two limiting ears to fasten the conductive plate.

5. The welded structure of a steel skeleton pipe according to claim 4, characterized in that: The conductive plate is provided with a wiring hole.

Images