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CN-122007767-A - Internal and external welding synchronous adjusting and supporting device for spiral welded pipe

CN122007767ACN 122007767 ACN122007767 ACN 122007767ACN-122007767-A

Abstract

The invention relates to the technical field of welding clamps, in particular to a synchronous internal and external welding adjusting and supporting device for a spiral welding pipe. According to the invention, through the floating frame, the welded pipe body is elastically supported through the abutting wheels arranged on the floating frame, under the action of friction force between the abutting wheels and the spiral pipe blank, the spiral pipe blank is subjected to axial reaction force from the floating frame, so that the pipe body joint of the spiral pipe blank is promoted to be closed, when the detection value of the pressure sensor reaches a threshold value, the floating frame slides and resets, so that the abutting wheels are driven to roll the outer wall of the spiral pipe blank, and thus the pipe body is dynamically restrained by reciprocating sliding of the floating frame, and the welded pipe body part is continuously rounded, so that the deformation of the welded area of the pipe body is avoided.

Inventors

  • ZHANG HONGSHUN
  • WANG YUANZHI
  • ZHAI YONGLI
  • WEN GUOQIANG
  • QU BO

Assignees

  • 迁安正大通用钢管有限公司

Dates

Publication Date
20260512
Application Date
20260331

Claims (8)

  1. 1. The utility model provides a synchronous regulation strutting arrangement of spiral welded tube internal welding external welding, includes base (1), its characterized in that: The forming device (11) for conveying the spiral pipe blanks (9) is fixedly arranged on the outer wall of the base (1), a first bracket (12) is arranged on the outer wall of one side of the base (1) close to a discharge hole of the forming device (11), an outer welding component (121) is arranged on the outer wall of the first bracket (12), a floating frame (2) is connected to the outer wall of the first bracket (12) in a sliding manner, a pressure sensor (21) is fixedly arranged on the outer wall of the floating frame (2), a boss (212) in contact with the sensing surface of the pressure sensor (21) is connected to the outer wall of the floating frame (2) in a sliding manner, a plurality of motors (22) distributed at equal intervals are fixedly arranged on the main shaft of the motors (22), a mounting sleeve (221) is provided with limiting grooves (222) in the mounting sleeve (221), limiting blocks (223) are connected in a sliding manner, abutting wheels (224) are fixedly arranged on the outer wall of the limiting blocks (223), a first limiting spring (225) is arranged between the outer wall of the limiting blocks (223) and the inner wall of the limiting grooves (222), a control unit (14) is arranged on the outer wall of the first bracket (12), and the control unit (14) is connected with the pressure sensor (14) through the control unit (14), a second bracket (13) is arranged on the outer wall of one side of the base (1) close to the feed inlet of the forming device (11), an inner welding component (131) is arranged on the outer wall of the second bracket (13), an outer wall alignment component is arranged on the first bracket (12), and an inner wall alignment component is arranged on the second bracket (13).
  2. 2. The synchronous internal and external welding adjusting and supporting device for the spiral welded pipe according to claim 1, wherein an electric reciprocating push rod (211) is fixed on the outer wall of the first bracket (12), and the output end of the electric reciprocating push rod (211) is fixed on the outer wall of the boss (212).
  3. 3. The synchronous internal and external welding adjusting and supporting device for the spiral welding pipe of claim 1, wherein a fixed sleeve (242) is fixedly arranged on the outer wall of the first bracket (12), a sliding sleeve (24) is fixedly arranged on the outer wall of the floating frame (2), and the sliding sleeve (24) is arranged on the outer wall of the fixed sleeve (242) in a sliding mode.
  4. 4. The synchronous adjusting and supporting device for internal and external welding of spiral welding pipes according to claim 3, wherein a spray head (23) is fixedly arranged on the outer wall of the top of the floating frame (2), an air bag (241) communicated with the spray head (23) is fixed on the inner wall of the sliding sleeve (24), two ends of the air bag (241) are respectively fixed on the inner walls of the sliding sleeve (24) and the fixed sleeve (242), and a one-way valve (243) communicated with the air bag (241) is fixed on the outer wall of the fixed sleeve (242).
  5. 5. The synchronous adjusting and supporting device for internal and external welding of spiral welded pipes according to claim 1, wherein the external wall alignment assembly comprises a plurality of external positioning frames (3) which are distributed at equal intervals in circumference, a plurality of groups of first hydraulic rods (31) are fixedly installed on the external wall of the first bracket (12), the output ends of the first hydraulic rods (31) are fixed on the external wall of the external positioning frames (3), and a plurality of first rollers (32) are connected to the external wall of the external positioning frames (3) in a rotating mode through rotating shafts.
  6. 6. The synchronous internal and external welding supporting device for spiral welded pipes according to claim 5, wherein a sleeve (33) is arranged on the outer wall of one side of the external locating frame (3) close to the external welding component (121), a second constraint spring (321) is arranged on the inner wall of the sleeve (33), and a rotating shaft of the first roller (32) close to the external welding component (121) is slidingly inserted into the sleeve (33).
  7. 7. The synchronous adjusting and supporting device for internal and external welding of the spiral welding pipe according to claim 1, wherein the inner wall alignment assembly comprises a plurality of equidistant circumferentially distributed inner positioning frames (4), a plurality of groups of second hydraulic rods (41) are fixedly arranged on the outer wall of the second bracket (13), the output ends of the second hydraulic rods (41) are fixed on the outer wall of the inner positioning frames (4), and a plurality of second rollers (42) are rotatably connected on the outer wall of the inner positioning frames (4).
  8. 8. The synchronous internal and external welding adjusting and supporting device for spiral welding pipes according to claim 7, wherein the second bracket (13) penetrates through the inner cavity of the forming device (11) and extends to the side where the first bracket (12) is located, and the inner positioning frame (4) and the inner welding component (131) are both positioned on the inner side of the spiral pipe blank (9).

Description

Internal and external welding synchronous adjusting and supporting device for spiral welded pipe Technical Field The invention relates to the technical field of welding clamps, in particular to a synchronous adjusting and supporting device for internal and external welding of a spiral welded pipe. Background The spiral welded pipe has the advantages of high utilization rate of raw materials, high production efficiency, adaptation of large-caliber conveying requirements and the like, is widely applied to multiple fields of petroleum and natural gas conveying, water supply and drainage engineering, building structures and the like, the welding quality directly determines the bearing capacity, sealing performance and service life of a pipeline, in the production process of the spiral welded pipe, the synchronous operation of internal welding and external welding is a core process for guaranteeing the welding line forming quality and improving the production efficiency, the supporting device is used as a key auxiliary component in the welding process, stable support is needed to be provided for a pipe body, and the accuracy of the axis of the pipe body and the good centering of the welding line are ensured during welding. At present, the existing spiral welded pipe welding supporting device adopts a rigid structural design, only can realize the fixed support of a single-size pipe body, lacks flexible adjusting capability and thermal expansion suitability, rapidly increases the local temperature of the pipe body in the welding process, causes obvious thermal expansion effect, and contracts in the cooling stage to form an uneven thermal cycle process, so that welding residual stress is generated, but the rigid constraint of the existing supporting device can force the pipe body to limit, so that the pipe body generates additional stress, and the defects of pipe body deformation, weld cracking and the like are extremely easy to cause. Disclosure of Invention The invention aims to solve the defects in the prior art, and provides a synchronous internal welding and external welding adjusting and supporting device for a spiral welding pipe, which enables a welded pipe body to be elastically supported through an abutting wheel arranged on a floating frame through the floating frame, and enables the spiral pipe blank to receive axial reaction force from the floating frame under the action of friction force between the abutting wheel and the spiral pipe blank, and then the pipe body seam closure of promoting the spiral pipe embryo, when pressure sensor's detected value reached the threshold value, the floating frame slides and resets to drive the butt wheel and roll extrusion is carried out to the outer wall of spiral pipe embryo, so reciprocally, slide reciprocally through the floating frame, realize carrying out dynamic constraint to the pipe body, carry out the continuation to return to the circle to the welded pipe body position, avoid pipe body postweld regional emergence to warp. In order to achieve the aim, the synchronous adjusting and supporting device for internal welding and external welding of the spiral welding pipe comprises a base, a forming device for conveying spiral pipe blanks is fixedly installed on the outer wall of the base, a first support is arranged on the outer wall of one side, close to a discharge hole of the forming device, of the base, an external welding component is arranged on the outer wall of the first support, a floating frame is connected to the outer wall of the first support in a sliding mode, a pressure sensor is fixedly installed on the outer wall of the floating frame, a boss in contact with an induction surface of the pressure sensor is connected to the outer wall of the floating frame in a sliding mode, a plurality of motors are fixedly installed on a main shaft of the motors, a limiting groove is formed in the mounting sleeve, limiting blocks are inserted into the limiting groove in a sliding mode, abutting wheels are fixedly installed on the outer wall of the limiting blocks, a first constraint spring is arranged between the outer wall of the limiting blocks and the inner wall of the limiting groove, a control unit is arranged on the outer wall of the first support, the motors are electrically connected with the pressure sensor through the control unit, a second support is arranged on the outer wall of one side, close to the feed hole of the forming device, an inner wall of the base is fixedly arranged on the outer wall of the second support, a plurality of motors are distributed in an equidistant circumference, a mounting sleeve is fixedly arranged on the limiting wheels, a limiting wheel is fixedly arranged on the outer wall of the limiting wheels, and a limiting device, a limiting device is fixedly arranged on the outer wall of the first support. Preferably, the outer wall of the first bracket is fixedly provided with an electric reciprocating push rod, and the output end