CN-121972537-A - Automatic roundness correction machine and welding system for vertical assembly welding of heavy barrel

CN121972537ACN 121972537 ACN121972537 ACN 121972537ACN-121972537-A

Abstract

The invention provides an automatic round calibrating machine and a welding system for vertical assembly welding of heavy-duty barrels, wherein the automatic round calibrating machine comprises a main machine base and a round calibrating device, the round calibrating device is configured to calibrate the ends to be welded of the two barrels simultaneously, and the two barrels are welded under the condition that the round calibrating device keeps a round calibrating working state, the round calibrating device comprises a plurality of round calibrating mechanisms, each round calibrating mechanism is symmetrically arranged and comprises a driving assembly and round calibrating wheel assemblies, the driving assembly drives the round calibrating wheel assemblies to move along the radial direction of the barrels, each round calibrating wheel assembly abuts against the inner walls of the ends to be welded of the two barrels during round calibrating, and each round calibrating wheel assembly simultaneously provides a round calibrating force along the radial direction of the barrels for the inner walls of the two barrels. The automatic circle calibrating mechanism solves the problems that manual circle calibrating depends on experience, is low in precision, is repeatedly and time-consuming in adjustment, realizes quick, accurate and consistent adjustment of the roundness of the cylinder, and is high in circle calibrating efficiency.

Inventors

Zhou Chengjuan
LUO YINGDIAN
XIE YUELIN
ZHAO XIAONAN

Assignees

佛山市恒力泰科技有限公司

Dates

Publication Date: 20260505
Application Date: 20260127

Claims (10)

1. An automatic roundness correction machine for vertical assembly welding of heavy-duty barrels is characterized by comprising a main machine base, a control system and a roundness correction device, wherein the roundness correction device is configured to correct circles of ends to be welded of two barrels simultaneously, and the two barrels are welded under the condition that the roundness correction device keeps a roundness correction working state; the round calibrating device is arranged on the main machine base and comprises a plurality of round calibrating mechanisms, the round calibrating mechanisms are symmetrically arranged, each round calibrating mechanism comprises a driving assembly and round calibrating wheel assemblies, the driving assembly drives the round calibrating wheel assemblies to move along the radial direction of the cylinder body, when round calibrating is carried out, each round calibrating wheel assembly abuts against the inner walls of the ends to be welded of the two cylinder bodies, and each round calibrating wheel assembly simultaneously provides a round calibrating force along the radial direction of the cylinder bodies for the inner walls of the two cylinder bodies.
2. The automatic roundness correction machine for vertical assembly welding of heavy duty barrels according to claim 1, characterized in that each of said roundness correction mechanisms is arranged in a central symmetry, and the symmetry center of each of said roundness correction mechanisms is located on the central axis of said barrel.
3. The automatic round calibrating machine for vertical assembly welding of heavy-duty barrels according to claim 1, wherein the round calibrating wheel assembly comprises a top wheel frame and a plurality of top wheels, the top wheel frame is movably connected with the driving assembly, the top wheels are rotatably mounted on the top wheel frame, the axial direction of the top wheels is parallel to the axial direction of the barrels, when round calibrating, the outer peripheral surfaces of the top wheels are abutted against the inner walls of the ends to be welded of the two barrels, and when welding, the outer peripheral surfaces of the top wheels are abutted against the inner walls of the ends to be welded of the two barrels simultaneously.
4. The automatic roundness correction machine for vertical splicing and welding of heavy-duty barrels according to claim 3, characterized in that said top wheel frame is connected with said driving assembly through a ball head.
5. The automatic roundness correction machine for vertical assembly welding of heavy duty barrels according to claim 1, wherein said driving assembly comprises a hydraulic cylinder provided with a displacement sensor in signal connection with said control system.
6. The automatic roundness correction machine for vertical assembly welding of heavy duty barrels of claim 1, wherein said roundness correction mechanism comprises a support arm assembly comprising a first articulated arm, a second articulated arm, and a mounting portion, one end of said first articulated arm being articulated with said roundness correction wheel assembly, the other end of said second articulated arm being articulated with said second articulated arm, one end of said second articulated arm being remote from said first articulated arm being articulated with said mounting portion, said mounting portion being fixedly mounted with said main foundation; The first articulated arm is connected with the dome wheel assembly, the central axis direction of the connecting shaft is perpendicular to the driving direction of the driving assembly, and the axial direction of the connecting shaft is perpendicular to the radial direction of the cylinder body.
7. The automatic roundness correction machine for vertical assembly welding of heavy duty barrels according to claim 1, further comprising a base and a lifting device, wherein a fixed end of the lifting device is fixedly installed with the main machine base, and a free end of the lifting device is fixedly installed with the main machine base.
8. The automatic roundness correction machine for vertical assembly welding of heavy-duty barrels according to claim 7, wherein the lifting device comprises a guide post, a screw rod and a lifting driver, the lifting driver drives the screw rod to rotate, the screw rod is in threaded connection with the main machine base, and the guide post penetrates through the main machine base.
9. The automatic roundness correction machine for vertical assembly welding of heavy duty barrels according to claim 1, further comprising a base and a positioning device, wherein the base is positioned below the main machine base, and the positioning device is fixedly installed on the base; The positioning device comprises a plurality of positioning mechanisms, the positioning mechanisms are symmetrically arranged on the base, the center of each positioning mechanism and the center of the circle calibrating device are on the same vertical axis, and the positioning mechanisms are configured to position the inner wall of the cylinder; the positioning mechanism comprises a mounting assembly and a positioning assembly, wherein the positioning assembly is mounted on the mounting assembly and is configured to abut against the inner wall of the cylinder body along the radial direction of the cylinder body and to be positioned, and the mounting assembly is mounted on the base and is configured to adjust the position of the positioning assembly along the radial direction of the cylinder body.
10. A welding system comprising an automatic roundness correction machine for vertical assembly welding of heavy duty barrels according to any one of claims 1 to 9, the two barrels being welded together, the welding step comprising: s1, placing a first cylinder on a base, positioning by a positioning device, and ensuring that a top wheel faces to the inner wall of the to-be-welded end of the first cylinder; S2, placing a second cylinder above the first cylinder, and enabling the end face of the to-be-welded end of the second cylinder to be attached to the end face of the to-be-welded end of the first cylinder; s3, starting the driving assembly, and driving the dome correcting wheel assembly to move along the radial direction of the first cylinder body, so that each dome correcting wheel abuts against and contacts the inner wall of the to-be-welded end of the first cylinder body and the inner wall of the to-be-welded end of the second cylinder body; s4, the driving assembly continues to work and drives the dome correcting wheel assembly to move along the radial direction of the first cylinder body, so that the dome correcting wheel assembly corrects circles on the end to be welded of the first cylinder body and the end to be welded of the second cylinder body.

Description

Automatic roundness correction machine and welding system for vertical assembly welding of heavy barrel Technical Field The invention belongs to the technical field of barrel welding, and particularly relates to an automatic roundness correction machine and a welding system for vertical assembly welding of a heavy barrel. Background In the field of manufacturing mechanical equipment, especially in industries of ceramics, mines, cement and the like, core components of key equipment such as ball mills, roller dryers and the like are usually large and heavy cylindrical barrels. Limited by manufacturing, transportation and installation conditions, such heavy duty cylinders generally employ a segmented manufacturing, field assembly welding process. The ovality deformation and the end surface dislocation of each section of cylinder body are easy to generate in the rolling, transporting or storing process, so that the accurate circle correction and centering operation must be carried out before final assembly and welding so as to ensure that the roundness and straightness of the whole section of cylinder body meet strict process requirements, which is a key premise for guaranteeing the integral operation stability of equipment, reducing abrasion and prolonging service life. At present, a cylinder assembling and rounding method commonly adopted in the industry still highly depends on the traditional manual operation. The conventional operation flow is that two sections of cylinders to be spliced are preliminarily stacked at a horizontal or vertical position, and an operator welds a plurality of 7-shaped or L-shaped fixed iron blocks near the port of one section of the cylinders. Then, at the corresponding position of the other barrel which is in butt joint with the barrel, a worker uses a large hammer to forcefully drive a wedge-shaped (or cone-shaped) iron block, and the extrusion force of the wedge-shaped iron block is used for forcing the barrel to locally generate plastic deformation, so that the port shapes of the two barrels are difficultly adjusted to be matched with each other as much as possible and to be positioned on the same ideal circumferential track. The process requires repeated measurement, hammering and adjustment. The traditional roundness correction method has a plurality of remarkable defects such as extremely high labor intensity, severe operation conditions, prominent potential safety hazards, low efficiency, poor quality consistency, low repeatability, low automation degree and the like, seriously restricts the modern development and safe production of the industry, and seriously influences the roundness correction of the cylinder and/or the welding of the cylinder. Based on the above, aiming at the assembly and welding links of the heavy cylinder and the cylinder body, the industry needs an automatic, high-efficiency and high-precision roundness correcting machine capable of fundamentally overcoming the defects. Disclosure of Invention The invention aims to provide an automatic roundness correction machine for vertical assembly welding of a heavy barrel, which solves the problems of great labor intensity, severe operation condition, prominent potential safety hazard, low efficiency, poor quality consistency, low repeatability, low automation degree and the like of the traditional roundness correction machine. The invention also aims to provide a welding system which comprises the automatic roundness correction machine for vertical assembly welding of heavy-duty cylinders, so that synchronous roundness correction of the two cylinders is realized, the welding is performed in a roundness correction state, the welding efficiency is high, and the welding quality is good. In order to achieve the above purpose, the invention discloses an automatic roundness correction machine for vertical assembly welding of heavy-duty barrels, which comprises a main machine base, a control system and a roundness correction device, wherein the roundness correction device is configured to correct circles of ends to be welded of two barrels at the same time, and the two barrels are welded under the condition that the roundness correction device keeps a roundness correction working state; the round calibrating device is arranged on the main machine base and comprises a plurality of round calibrating mechanisms, the round calibrating mechanisms are symmetrically arranged, each round calibrating mechanism comprises a driving assembly and round calibrating wheel assemblies, the driving assembly drives the round calibrating wheel assemblies to move along the radial direction of the cylinder body, when round calibrating is carried out, each round calibrating wheel assembly abuts against the inner walls of the ends to be welded of the two cylinder bodies, and each round calibrating wheel assembly simultaneously provides a round calibrating force along the radial direction of the cylinder bodies for the inner walls of the t