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CN-120772748-B - Multi-degree-of-freedom automatic positioning welding fixture for main pipe and auxiliary pipe of extra-high voltage steel pipe tower

CN120772748BCN 120772748 BCN120772748 BCN 120772748BCN-120772748-B

Abstract

The invention relates to the technical field related to welding clamping tools of steel tube towers, in particular to a multi-degree-of-freedom automatic positioning welding tool clamp for main and auxiliary tubes of an extra-high voltage steel tube tower, which comprises a frame, a first guide rail, a second guide rail, a main tube clamping mechanism, an auxiliary tube clamping mechanism, a first motor, a second motor and a control system, wherein the main tube clamping mechanism and the auxiliary tube clamping mechanism can precisely slide along the guide rails by arranging the first guide rail and the second guide rail which are mutually perpendicular; the automatic positioning precision of the fixture and the linkage of the motor driving and controlling system are guaranteed, the manual operation, the running stability and the cost economy are reduced, and therefore the positioning and welding operation of the main pipe and the auxiliary pipe of the extra-high voltage steel pipe tower are efficiently completed.

Inventors

  • Song Kuidong
  • GAO WENYUAN
  • YANG JIAN
  • ZHANG HU

Assignees

  • 南京大吉铁塔制造有限公司

Dates

Publication Date
20260505
Application Date
20250815

Claims (6)

  1. 1. The utility model provides an automatic positioning welding frock clamp of extra-high voltage steel pipe tower owner assistance pipe multi freedom degree, its characterized in that includes frame (1), guide rail (201), no. two guide rails (202), is responsible for fixture (3), assistance pipe clamping mechanism (4), no. one motor (501), no. two motor (502) and control system (6), no. one guide rail (201) and No. two guide rails (202) all install on frame (1), just guide rail (201) and No. two guide rails (202) mutually perpendicular set up, be responsible for fixture (3) and assistance pipe clamping mechanism (4) sliding connection respectively on guide rail (201) and No. two guide rails (202), all install positioning sleeve (301) on the both ends of being responsible for fixture (3), two positioning sleeve (301) all rotate with be connected with main pipe fixture (3), two all install on positioning sleeve (301) centre gripping cone (302), two centre gripping cone (303) between centre gripping body (303), motor (4) and assistance pipe clamping mechanism (4) are installed on No. one guide rail (201) and No. two guide rails (202), no. two motor (501) are all installed on main pipe clamping mechanism (6) and control system (6), the control system (6) drives the main pipe clamping mechanism (3) to clamp and move the main pipe body (303) through controlling the first motor (501), and the control system (6) drives the auxiliary pipe clamping mechanism (4) to clamp and move the auxiliary pipe body (401) through controlling the second motor (502); The auxiliary pipe clamping mechanism (4) comprises a clamping seat (402), a third guide rail (403), a lower clamping plate (404), an upper clamping plate (405), a third motor (406) and a double-screw rod (407), wherein the clamping seat (402) is slidably connected to the second guide rail (202), the third guide rail (403) is vertically arranged on the rear side of the upper end face of the clamping seat (402), the rear ends of the lower clamping plate (404) and the upper clamping plate (405) are slidably connected to the third guide rail (403), the lower clamping plate (404) is parallel to the upper clamping plate (405), the third motor (406) is arranged on the upper end surface of the third guide rail (403), the third motor (406) is electrically connected with the control system (6), the upper end and the lower end of the double-screw rod (407) are respectively connected with the upper clamping plate (405) and the lower clamping plate (404) in a threaded manner, the screw threads at the upper end and the lower end of the double-screw rod (407) are opposite in rotation direction, and the upper end face of the double-screw rod (407) is connected with a third motor (406); Install bulb seat (801) on the lower terminal surface of punch holder (405), install bulb round pin (802) in bulb seat (801), install pinch plate (803) on the lower terminal surface of bulb round pin (802), still equipartition has a plurality of compensation springs (804) between punch holder (405) and pinch plate (803).
  2. 2. The multi-degree-of-freedom automatic positioning and welding fixture for the main and auxiliary pipes of the extra-high voltage steel pipe tower, as claimed in claim 1, is characterized in that elastic pads (805) are arranged on the upper end face of the lower clamping plate (404) and the lower end face of the pressing plate (803), the elastic pads (805) are made of polyurethane materials, and zigzag anti-skidding patterns are machined on the surfaces of the elastic pads (805).
  3. 3. The multi-degree-of-freedom automatic positioning and welding fixture for the main pipe and the auxiliary pipe of the extra-high voltage steel pipe tower according to claim 1 is characterized in that positioning blocks (701) are arranged on the left end faces of the upper clamping plate (405) and the lower clamping plate (404), positioning faces (702) are arranged on the left end faces of the two positioning blocks (701), the two positioning faces (702) are horn-shaped, openings of the two positioning faces (702) point to the direction of the main pipe body (303), and the two positioning faces (702) are parallel to the outer surface of the main pipe body (303).
  4. 4. The multi-degree-of-freedom automatic positioning and welding fixture for the main pipe and the auxiliary pipe of the extra-high voltage steel pipe tower, which is disclosed in claim 3, is characterized in that the front end surfaces of the two positioning blocks (701) are respectively and rotatably connected with an anti-blocking roller (703), and the circumferential surfaces of the two anti-blocking rollers (703) are respectively sleeved with a buffer sleeve (704).
  5. 5. The automatic positioning welding fixture for the multiple degrees of freedom of the main and auxiliary pipes of the extra-high voltage steel pipe tower according to claim 1 is characterized in that a deviation correcting disc (901) is arranged between a clamping seat (402) and a third guide rail (403), the deviation correcting disc (901) is rotatably connected to the clamping seat (402), the third guide rail (403) is vertically arranged on the deviation correcting disc (901), an arc-shaped deviation correcting groove (902) is concentrically formed in the upper end face of the clamping seat (402), the center line of the deviation correcting groove (902) coincides with the center line of a second guide rail (202), a deviation correcting block (903) is arranged on the lower end face of the deviation correcting disc (901), the deviation correcting block (903) is slidably connected in the deviation correcting groove (902), deviation correcting springs (904) are respectively arranged at two ends of the deviation correcting groove (902), and the two ends of each deviation correcting spring (904) are respectively connected with the inner wall of the deviation correcting groove (902) and the deviation correcting block (903).
  6. 6. The multi-degree-of-freedom automatic positioning and welding fixture for the main pipe and the auxiliary pipe of the extra-high voltage steel pipe tower according to claim 5, wherein reinforcing surfaces (905) are arranged on the inner side walls of the third guide rail (403) and the correcting groove (902), the reinforcing surfaces (905) are subjected to integral tempering and surface nitriding treatment, and the hardness of the reinforcing surfaces (905) after processing is between 65HRC and 70 HRC.

Description

Multi-degree-of-freedom automatic positioning welding fixture for main pipe and auxiliary pipe of extra-high voltage steel pipe tower Technical Field The invention relates to the technical field related to welding clamping tools of steel tube towers, in particular to an automatic positioning welding tool clamp with multiple degrees of freedom for main and auxiliary tubes of an extra-high voltage steel tube tower. Background In the ultra-high voltage transmission engineering construction, a steel pipe tower is used as a key supporting structure, the manufacturing precision and efficiency of the steel pipe tower play a decisive role in engineering quality and progress, the multi-degree-of-freedom automatic positioning welding fixture for the main and auxiliary pipes of the ultra-high voltage steel pipe tower is core equipment specially designed for meeting the welding requirements of the main and auxiliary pipes of the steel pipe tower, the main and auxiliary pipes can be positioned and clamped to provide an operation basis for welding procedures, in the past, the welding operation of the main and auxiliary pipes of the ultra-high voltage steel pipe tower has a plurality of troublesome problems, on one hand, the traditional process is highly dependent on manual operation, workers need to manually adjust the positions and angles of the main and auxiliary pipes by virtue of experience, the labor intensity is extremely high, the positioning precision is severely influenced by artificial factors, the precision of each spliced position is difficult to ensure, the overall quality of the steel pipe tower is uneven, on the other hand, the manual positioning efficiency is low, the large-scale and high-strength production requirements cannot be adapted, the engineering construction progress is severely restricted, in addition, the defects such as deviation, the false welding and the missing welding are easy to occur, and the subsequent labor cost is not required to be greatly increased, and the production cost is greatly increased. Disclosure of Invention The invention aims to provide an automatic positioning and welding fixture for multiple degrees of freedom of a main pipe and an auxiliary pipe of an extra-high voltage steel pipe tower, which aims to solve the problems that when the existing positioning and welding fixture faces the positioning and welding of the main pipe and the auxiliary pipe, the main pipe of the steel pipe tower is huge in size, the traditional welding mode usually depends on a crane or a crane and other large-scale hoisting equipment to hoist the steel pipe, and then workers manually aim at the auxiliary pipe to weld, so that the positioning precision is reduced, the welding precision is reduced, and the construction cost is high. In order to achieve the above purpose, the present invention provides the following technical solutions: The utility model provides an extra-high voltage steel pipe tower owner is assisted pipe multi freedom automatic positioning welding frock clamp, includes frame, guide rail No. one, guide rail No. two, is responsible for fixture, is assisted pipe clamping mechanism, first motor, no. two motors and control system, guide rail No. one and No. two guide rails all install in the frame, just guide rail No. one and No. two guide rails mutually perpendicular set up, be responsible for fixture and assistance pipe clamping mechanism and sliding connection respectively on guide rail No. one and No. two guide rails, all install the locating sleeve on the both ends of being responsible for fixture, two the locating sleeve all rotates with being responsible for fixture to be connected, two all install the centre gripping conical head on the locating sleeve, two centre gripping conical head between centre gripping have the person in charge's body, it has assistance pipe body to assist to grip the clamp the mechanism on, no. one motor, no. two motors and control system all install in the frame, no. one motor and No. two motors all are with control system electric connection, control system is responsible for the body through controlling one motor drive centre gripping mechanism to assist and move control, no. two motor drive pipe clamping mechanism to control pipe clamping mechanism with the control pipe clamping mechanism; through setting up the guide rail I and guide rail II of mutually perpendicular, make and be responsible for clamping mechanism and assisting pipe clamping mechanism and can follow the accurate slip of guide rail, combine the stable centre gripping of locating sleeve, centre gripping conical head to being responsible for and assisting pipe clamping mechanism to assisting the reliable fixed of pipe, realized the automation location of main pipe and assisting the pipe, replaced the tradition mode that relies on driving/crane hoist and mount and manual alignment, simultaneously, utilize motor I, motor II cooperation control system actuating mechanism action, reduc