Steel pipe welding device

Abstract

The utility model provides a steel pipe welding device which comprises an operation table, and two clamping mechanisms are arranged on the operation table. Each clamping mechanism comprises a second clamping block, and the two second clamping blocks are fixedly arranged at the top of the operation table; two first clamping blocks are arranged on the operation table in a sliding mode, the two first clamping blocks correspond to the two second clamping blocks one to one, and the first clamping blocks and the corresponding second clamping blocks are oppositely arranged; each clamping mechanism is provided with a driving mechanism used for driving the steel pipe to rotate, each driving mechanism comprises a third motor, and a plurality of rolling cylinders are rotationally arranged on the face, opposite to the corresponding first clamping block, of each second clamping block. Each second clamping block is fixedly provided with a third motor, and an output shaft of each third motor is fixedly connected with one rolling cylinder on the second clamping block connected with the third motor. In the whole process, the clamping state of the to-be-welded object does not need to be repeatedly changed, and the welding time of the device for the to-be-welded object is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding devices, and in particular relates to a steel pipe welding device. Background Art

[0002] Steel pipes need to be welded by welding equipment before leaving the factory. In order to ensure the stability of the steel pipes during welding, the existing welding equipment usually uses a fixing fixture to fix the steel pipes before welding.

[0003] The existing patent with announcement number CN218169293U discloses a steel pipe welding device, including a machine body, wherein first slide grooves are provided on both sides of the upper end surface of the machine body, first motors are fixedly installed in the two first slide grooves, first threaded screws are fixedly provided on the output shafts of the two first motors, and first sliders are slidably mounted on the two first threaded screws; first connecting blocks are fixedly provided on the two first sliders, and first clamping blocks are fixedly provided on the tops of the two first connecting blocks; second clamping blocks are fixedly provided on both sides of the upper end surface of the machine body, and the two first clamping blocks correspond one to one to the two second clamping blocks.

[0004] Regarding the above technical solution, the applicant believes that the following problems exist: Due to the randomness of the steel pipe welding position, in order to ensure the stability of the steel pipe after welding, it is usually necessary to rotate the steel pipe to adjust the position of the welded area, thereby fully welding the welded area. However, this solution is not conducive to rotating the steel pipe after clamping it. The clamping block must first release the steel pipe and then re-clamp the steel pipe after rotating and adjusting the steel pipe. Repeatedly releasing and restoring the steel pipe clamp increases the processing time of the steel pipe welding and the workload of the operator, which has significant limitations in actual use. Utility Model Content

[0005] In order to solve the problems existing in the background technology, the utility model provides a steel pipe welding device.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A steel pipe welding device comprises an operating table equipped with an adjustable welding head, and the operating table is provided with two clamping mechanisms for clamping steel pipes; each of the clamping mechanisms comprises a second clamping block, and the two second clamping blocks are fixedly arranged on the top of the operating table; two first clamping blocks are slidably arranged on the operating table, the two first clamping blocks correspond one-to-one to the two second clamping blocks, and the first clamping blocks and the corresponding second clamping blocks are arranged facing each other; each of the clamping mechanisms is provided with a driving mechanism for driving the steel pipe to rotate, the driving mechanism comprises a third motor, and a plurality of rolling cylinders are rotatably arranged on the facing surfaces of each second clamping block and the corresponding first clamping block, and the plurality of rolling cylinders located on the same first clamping block or the second clamping block do not contact each other; a third motor is fixedly installed on each of the second clamping blocks, and the output shaft of each third motor is fixedly connected to one of the rolling cylinders on the connected second clamping block.

[0008] Furthermore, two second motors are fixedly installed in the operating table, and the output shafts of the two second motors are fixedly provided with second threaded rods, and the ends of the two second threaded rods away from the second motors are rotatably connected to the operating table; the two second threaded rods are threadedly connected to sliding blocks, and the two sliding blocks are limited and slidably matched with the operating table; the two sliding blocks correspond one-to-one to the two first clamping blocks, and the sliding blocks are fixedly connected to the corresponding first clamping blocks.

[0009] Furthermore, a first motor is fixedly installed inside the operating table, and a first threaded rod is fixedly set on the output shaft of the first motor, and the end of the first threaded rod away from the first motor is rotatably connected to the operating table; a moving block is threadedly connected to the first threaded rod, and the moving block is limited and slidably matched with the operating table, and a first electric push rod is fixed on the top of the moving block; a fixed rod is fixed on the telescopic axis of the first electric push rod, and the fixed rod is fixedly connected to the welding head.

[0010] Furthermore, one side of each of the first clamping block and the second clamping block connected to the rolling cylinder is arc-shaped; and the rolling cylinder is made of rubber.

[0011] This application has the following beneficial effects:

[0012] 1. After the object to be welded is secured by the clamping mechanism, the drive mechanism rotates the object through the clamping mechanism, thereby adjusting the position of the welded area on the object to be welded, ultimately achieving full welding of the object. This entire process does not require repeated changes in the clamping state of the object to be welded, reducing the welding time of the device and providing high practicality in actual use.

[0013] 2. Due to the arc-shaped setting of the clamping surface of the clamping mechanism, the object to be welded can be subjected to clamping forces in multiple directions, thereby improving the clamping effect of the clamping mechanism on the object to be welded and preventing the object to be welded from shaking during the welding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the second threaded rod of the utility model;

[0017] Figure 3 This is a schematic diagram of the first threaded rod structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the driving mechanism structure of the utility model.

[0019] Description of reference numerals:

[0020] 1. Operating table; 2. First threaded rod; 3. Moving block; 4. First motor; 5. First electric push rod; 6. Fixed rod; 7. Welding head; 8. Second threaded rod; 9. Sliding block; 10. First clamping block; 11. Second motor; 13. Third motor; 14. Rolling drum; 15. Second clamping block; 16. Fourth motor; 17. Rotating disk; 18. Clamping member; 19. Second electric push rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0022] like Figure 1-Figure 4As shown, the technical solution adopted by the present invention is as follows: A steel pipe welding device includes an operating table 1, and a first slide groove is provided on the top of the operating table 1. A first motor 4 is fixedly installed in the operating table 1, and the output shaft of the first motor 4 rotates and extends into the first slide groove. A first threaded rod 2 is fixedly provided on the output shaft of the first motor 4, and the end of the first threaded rod 2 away from the first motor 4 is rotatably connected to the side wall of the first slide groove. The outer surface of the first threaded rod 2 is threadedly connected to a moving block 3, and the moving block 3 is limitedly slidably provided in the first slide groove. A first electric push rod 5 is fixedly provided on the top of the moving block 3, and the output shaft of the first electric push rod 5 is fixed to a horizontal fixed rod 6, and a welding head 7 is fixedly installed on the fixed rod 6. By adjusting the position of the welding head 7, it is convenient to weld the steel pipe.

[0023] Two clamping mechanisms for clamping steel pipes are provided on the operating table 1 , and the welding head 7 is located between the two clamping mechanisms.

[0024] Each clamping mechanism includes a second clamping block 15. Each second clamping block 15 is fixedly mounted on the top of the operating platform 1. Two second chute slots are defined on the top of the operating platform 1, each of which is fixedly mounted with a second motor 11. A second threaded rod 8 is fixedly mounted on the output shaft of each second motor 11. The ends of each second threaded rod 8, facing away from the second motor 11, are rotatably connected to the sidewalls of the second chute slots in which the second motor 11 is located.

[0025] The outer surfaces of the two second threaded rods 8 are each threadedly connected to a sliding block 9. Both sliding blocks 9 slide in limited engagement with the second chute of the second threaded rod 8 to which they are connected. A first clamping block 10 is fixed to the top of each sliding block 9. The two first clamping blocks 10 correspond one-to-one with the two second clamping blocks 15, and each first clamping block 10 moves toward or away from the corresponding second clamping block 15, facilitating the clamping and securing of steel pipes.

[0026] Each clamping mechanism is provided with a driving mechanism for driving the steel pipe to rotate. Each driving mechanism includes a third motor 13. Two symmetrically arranged arc plates are fixedly connected on the facing surfaces of each second clamping block 15 and the corresponding first clamping block 10. Several rotating shafts are rotatably arranged between the two arc plates on the same first clamping block 10 or second clamping block 15, and the several rotating shafts are arranged along the curvature of the arc plates. A rolling drum 14 is rotatably arranged on each rotating shaft, and the several rolling drums 14 on the same first clamping block 10 or second clamping block 15 do not contact each other, and the rolling drum 14 is specifically made of a rubber material. A third motor 13 is fixedly installed on each second clamping block 15, and the output shaft of each third motor 13 is fixedly connected to one of the rotating shafts connected to it on the second clamping block 15.

[0027] The output shaft of the third motor 13 drives the rolling drum 14 to rotate, thereby driving the steel pipe to rotate, so as to facilitate rotating the portion of the steel pipe to be welded to below the welding head 7.

[0028] Working Principle: Place the steel pipe to be welded on the operating table 1, with both ends of the pipe positioned within the clamping mechanisms on either side. Start the second motor 11. The output shaft of the second motor 11 rotates the second threaded rod 8. This rotation, through the sliding block 9, drives the first clamping block 10 to slide within the second chute toward the corresponding second clamping block 15, thereby clamping and securing the pipe. During the clamping process, the rolling cylinders 14 on the first clamping block 10 and the second clamping block 15 are deformed by compression. This improves the clamping effect while ensuring that all rolling cylinders 14 are in contact with the pipe.

[0029] After clamping is completed, the second motor 11 is turned off and the first motor 4 is turned on. The output shaft of the first motor 4 drives the first threaded rod 2 to rotate, which in turn drives the movable block 3 to slide. The movable block 3, in turn, drives the welding head 7 to slide via the first electric push rod 5 and the fixed rod 6, thereby adjusting the horizontal position of the welding head 7. During this process, activating the first electric push rod 5 can adjust the vertical position of the welding head 7, facilitating the overall welding process.

[0030] When the welded steel pipe needs to be adjusted, the third motor 13 is started. The output shaft of the third motor 13, via the rotating shaft, drives the connected roller 14 to rotate. The roller 14, through friction, rotates the steel pipe. When the steel pipe reaches the desired position, the third motor 13 is stopped. However, the roller 14 not connected to the third motor 13 also rotates during the steel pipe's rotation due to its inherent rotational connection. Furthermore, the roller 14 not connected to the third motor 13 assists in the steel pipe's rotation, further facilitating its rotation.

Claims

1. A steel pipe welding device, comprising an operating table (1) equipped with an adjustable welding head (7), wherein the operating table (1) is provided with two clamping mechanisms for clamping the steel pipe; characterized in that: Each of the clamping mechanisms comprises a second clamping block (15), and the two second clamping blocks (15) are fixedly arranged on the top of the operating table (1); two first clamping blocks (10) are slidably arranged on the operating table (1), and the two first clamping blocks (10) correspond to the two second clamping blocks (15) one by one, and the first clamping blocks (10) and the corresponding second clamping blocks (15) are arranged facing each other; each of the clamping mechanisms is provided with a driving mechanism for driving the steel pipe to rotate, and the driving mechanism comprises a third motor (13), and a plurality of rolling cylinders (14) are rotatably arranged on the facing surface of each second clamping block (15) and the corresponding first clamping block (10), and the plurality of rolling cylinders (14) located on the same first clamping block (10) or second clamping block (15) do not contact each other; a third motor (13) is fixedly installed on each of the second clamping blocks (15), and the output shaft of each third motor (13) is fixedly connected to one of the rolling cylinders (14) on the connected second clamping block (15).

2. The steel pipe welding device according to claim 1, characterized in that: Two second motors (11) are fixedly installed in the operating table (1), and the output shafts of the two second motors (11) are fixedly provided with second threaded rods (8), and the ends of the two second threaded rods (8) away from the second motors (11) are rotatably connected to the operating table (1); the two second threaded rods (8) are threadedly connected to sliding blocks (9), and the two sliding blocks (9) are limitedly slidably engaged with the operating table (1); the two sliding blocks (9) correspond one to one with the two first clamping blocks (10), and the sliding blocks (9) are fixedly connected to the corresponding first clamping blocks (10).

3. The steel pipe welding device according to claim 1, characterized in that: A first motor (4) is fixedly installed inside the operating table (1); a first threaded rod (2) is fixedly arranged on the output shaft of the first motor (4); an end of the first threaded rod (2) away from the first motor (4) is rotatably connected to the operating table (1); a moving block (3) is threadedly connected to the first threaded rod (2); the moving block (3) and the operating table (1) are limitedly slidably matched; a first electric push rod (5) is fixedly arranged on the top of the moving block (3); a fixed rod (6) is fixedly arranged on the telescopic shaft of the first electric push rod (5), and the fixed rod (6) is fixedly connected to the welding head (7).

4. The steel pipe welding device according to claim 1, characterized in that: The side of each of the first clamping block (10) and the second clamping block (15) connected to the rolling cylinder (14) is arc-shaped; the rolling cylinder (14) is made of rubber.

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