Auxiliary device for welding steel casing

Abstract

The invention relates to the technical field of steel casing welding, and particularly discloses an auxiliary device for steel casing welding, comprising: a fixing frame comprising arc-shaped frames detachably connected with each other and symmetrically fixed to the surface of a steel casing; the rotating cylinder is rotationally connected to the fixing frame, and a mounting seat capable of allowing a welding gun to be mounted is vertically connected to the rotating cylinder in a sliding mode; the power piece is arranged on the fixing frame, the horizontal rotating assembly is driven by the power piece and drives the rotating cylinder to rotate, the vertical sliding assembly is driven by the power piece and drives the mounting base to slide in a reciprocating mode, and the horizontal rotating assembly and the vertical sliding assembly alternately operate in an intermittent mode. The problems that in traditional welding of the peripheral girth of the steel casing, manual welding is relied on, the working environment is poor, and the working time is long are solved.

Description

Technical Field

[0001] The present application relates to the technical field of steel casing welding, and specifically discloses an auxiliary device for steel casing welding. Background Art

[0002] During the pile foundation construction process, steel casing can not only effectively protect the stability of the hole wall and prevent damage to the pile body, but also realize accurate positioning and guiding functions. By using steel casing, the safety and accuracy of pile foundation construction can be greatly improved, ensuring the quality and progress of the project.

[0003] In order to facilitate the transportation of steel casings, steel casings are usually processed into single-segment forms, and are welded and fixed after vertical butt jointing at the pile foundation construction site to form finished steel casings. Peripheral circumferential seam welding is an indispensable welding step in the steel casing splicing process. Currently, welding still mainly relies on manual handheld welding guns. Peripheral circumferential seam welding requires operators to work for a long time and with high concentration, resulting in poor working environment and long working time. It is difficult to ensure the efficiency and quality of on-site splicing of steel casings, and some steel casings need to be sunk and placed. When performing this type of steel casing welding, the risk and difficulty of operation are both relatively large. Therefore, in view of this, the present invention provides an auxiliary device for steel casing welding to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the conventional welding of the peripheral circumferential seam of a steel casing relies on manual welding, resulting in a poor working environment and a long working time.

[0005] In order to achieve the above object, the basic scheme of the present invention provides an auxiliary device for steel casing welding, comprising:

[0006] A fixing frame, comprising arc-shaped frames detachably connected to each other and symmetrically fixed to the surface of the steel casing;

[0007] A rotating cylinder is rotatably connected to the fixed frame, and a mounting seat for mounting a welding gun is vertically slidably connected to the rotating cylinder;

[0008] The driving mechanism comprises a power member arranged on the fixing frame, a horizontal rotating assembly driven by the power member and driving the rotating cylinder to rotate, and a vertical sliding assembly driven by the power member and driving the mounting seat to slide back and forth. The horizontal rotating assembly and the vertical sliding assembly operate intermittently and alternately.

[0009] The principles and effects of this basic solution are:

[0010] Compared with the prior art, the present invention utilizes a driving mechanism to drive the horizontal rotating assembly and the vertical sliding assembly to operate intermittently and alternately, so that when the horizontal rotating assembly is in operation, it can drive the rotating cylinder, the mounting seat and the welding gun installed on the mounting seat to rotate around the steel casing at a certain angle; and when the vertical sliding assembly is in operation, it can drive the mounting seat and the welding gun installed on the mounting seat to perform vertical reciprocating rotation along the steel casing, so that the welding gun on the mounting seat can perform a complete peripheral circumferential seam welding process on the steel casing. In addition, during the welding process, the rotating cylinder can also protect the surrounding environment, and can replace the current manual peripheral circumferential seam welding process in the steel casing docking, solving the problem of relying on manual welding in the traditional peripheral circumferential seam welding of steel casings, resulting in poor working environment and long working time. And it can effectively ensure the efficiency and quality of steel casing docking.

[0011] Further, the horizontal rotation assembly comprises:

[0012] A driving wheel is drivingly connected to the output end of the power member, a lever is obliquely arranged on the driving wheel, and a convex block is arranged at the end of the lever;

[0013] A first driven sheave, which is perpendicular to the driving wheel and is provided with a plurality of first arc-shaped radial grooves into which the protrusions can slide;

[0014] A first driving gear, drivingly connected to the first driven sheave;

[0015] A first gear ring is provided on the rotating cylinder and meshes with the first driving gear.

[0016] The power member is used to drive the active rotating wheel to rotate, so that the protrusion on the active rotating wheel intermittently cooperates with the first arc-shaped radial groove on the first driven groove wheel to drive the first driven groove wheel to rotate intermittently, thereby driving the first driving gear and the first gear ring to rotate intermittently, thereby achieving the effect of intermittently driving the rotating cylinder to rotate.

[0017] Furthermore, the vertical sliding assembly comprises:

[0018] A second driven sheave is perpendicular to the driving wheel and symmetrically arranged with the first driven sheave, and the second driven sheave is provided with a plurality of second arc-shaped radial grooves into which the protrusions can slide;

[0019] A rotating ring, rotatably connected to the rotating cylinder;

[0020] A second driving gear, drivingly connected to the second driven sheave;

[0021] a second ring gear, disposed on the rotating ring and meshing with the second driving gear;

[0022] A third gear ring, arranged on the inner wall of the rotating ring;

[0023] A reciprocating screw pair is vertically rotatably connected to the rotating cylinder, and the mounting seat is driven to move by the reciprocating screw pair;

[0024] The adjusting gear pair is transmission-connected between the third gear ring and the reciprocating screw pair.

[0025] The protrusion on the active rotating wheel cooperates with the second arc-shaped radial groove on the second driven groove wheel to drive the second driven groove wheel to rotate intermittently, thereby driving the second driving gear and the second gear ring to rotate intermittently, and the mutual rotation between the rotating ring and the rotating cylinder makes the third gear ring drive the reciprocating screw pair to rotate through the adjusting gear pair, thereby driving the mounting seat to perform vertical reciprocating motion.

[0026] Furthermore, the driving rotating wheel is provided with a locking sleeve, the locking sleeve is provided with a notch, and the first driven sheave and the second driven sheave are respectively provided with a plurality of first locking arc surfaces and second locking arc surfaces that cooperate with the locking sleeve. The locking sleeve cooperates with the first locking arc surface or the second locking arc surface to prevent the first driven sheave and the second driven sheave from rotating after the protrusion is separated from the first arc-shaped radial groove or the second radial groove, thereby ensuring the accuracy of the transmission process and the accuracy of the welding position.

[0027] Further, when the protrusion of the driving wheel cooperates with the first arc-shaped radial groove, the locking sleeve cooperates with the second locking arc surface;

[0028] When the protrusion of the driving wheel cooperates with the second arc-shaped radial groove, the locking sleeve cooperates with the first locking arc surface.

[0029] When the driving wheel drives the first driven sheave wheel to rotate, the position of the second driven sheave wheel is fixed; when the driving wheel drives the second driven sheave wheel to rotate, the position of the first driven sheave wheel is fixed.

[0030] Furthermore, when the first arc-shaped radial groove and the second arc-shaped radial groove are located in the same direction, the distance between the end of the first arc-shaped radial groove and the end of the second arc-shaped radial groove is smaller than the diameter of the protrusion, so that the protrusion can correctly shuttle between the first arc-shaped radial groove and the second arc-shaped radial groove to avoid being stuck.

[0031] Furthermore, the adjusting gear pair includes a plurality of acceleration transmission gear sets, which are sequentially transmission-connected between the third gear ring and the reciprocating screw pair to drive the reciprocating screw to rotate by means of acceleration transmission.

[0032] Furthermore, the arc frame includes a first frame body, a second frame body and a connecting frame arranged between the first frame body and the second frame body, and the ends of the first frame body and the second frame body are provided with lugs, so that the arc frame can be matched and fixed with the upper and lower steel casings to be welded.

[0033] Furthermore, the inner walls of the first frame and the second frame are both provided with connecting rings that match the surface of the steel casing, so as to improve the matching effect between the arc frame and the steel casing.

[0034] Furthermore, the mounting seat is also provided with a brush plate located at the front side of the welding gun along the rotating direction of the rotating cylinder, so as to clean the surface of the steel casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 A schematic diagram of an auxiliary device for steel casing welding proposed in an embodiment of the present application is shown;

[0037] Figure 2 Shows Figure 1 Enlarged view of part A;

[0038] Figure 3 Shows Figure 1 Enlarged view of part B;

[0039] Figure 4 A schematic diagram of a driving mechanism in an auxiliary device for welding a steel casing proposed in an embodiment of the present application is shown;

[0040] Figure 5 Shows Figure 4 Enlarged view of part C in the middle;

[0041] Figure 6 A schematic diagram of a vertical sliding component in an auxiliary device for welding a steel casing proposed in an embodiment of the present application is shown;

[0042] Figure 7 Shows Figure 6 Enlarged view of part D in the middle. DETAILED DESCRIPTION

[0043] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0044] The figure marks in the drawings of the specification include: lower steel casing 1, upper steel casing 2, first frame 3, second frame 4, ear piece 5, connecting frame 6, first gear ring 7, second gear ring 8, connecting ring 9, rotating cylinder 10, mounting frame 11, motor 12, driving wheel 13, first driven groove wheel 14, first drive gear 15, first driven groove wheel 16, second drive gear 17, shift rod 18, protrusion 19, first arc-shaped radial groove 20, first locking arc 21, second arc-shaped radial groove 22, second locking arc 23, third gear ring 24, inner ring 25, pinion 26, reciprocating screw 27, guide rod 28, large gear 29, mounting seat 30, brush plate 31.

[0045] An auxiliary device for steel casing welding, for example Figure 1 As shown: it includes a fixing frame installed on the surface of the upper steel casing 2 and the lower steel casing 1 to be welded, a rotating cylinder 10 arranged on the fixing frame, a mounting seat 30 arranged on the rotating cylinder 10 and a driving mechanism for driving the mounting seat 30 to move.

[0046] like Figure 2 As shown, the fixing frame includes two arc frames which are detachably connected to each other and symmetrically fixed to the surface of the steel casing, and the arc frame includes a first frame body 3, a second frame body 4 and a connecting frame 6 arranged between the first frame body 3 and the second frame body 4, respectively matching with the surface of the upper steel casing 2 and the lower steel casing 1, and the ends of the first frame body 3 and the second frame body 4 are provided with ear pieces 5, and the ear pieces 5 of the two arc frames are fixed by bolts, and the inner walls of the first frame body 3 and the second frame body 4 are provided with connecting rings 9 which match with the surface of the steel casing, and the inner wall of the connecting ring 9 is provided with elastic layers which are respectively pressed against the surface of the upper steel casing 2 and the lower steel casing 1. This improves the matching effect between the arc frame and the steel casing and prevents the arc frame from loosening.

[0047] like Figure 3 As shown, a mounting frame 11 is also provided between the first frame 3 and the second frame 4, and the driving mechanism includes a power member installed on the mounting frame 11, a horizontal rotating component driven by the power member and driving the rotating cylinder 10 to rotate, and a vertical sliding component driven by the power member and driving the mounting seat 30 to slide back and forth.

[0048] like Figure 4 and Figure 5As shown, the power part adopts a motor 12, which is installed on the mounting frame 11 through the motor 12 seat, and the horizontal rotation assembly includes a driving wheel 13 that is driven by the output shaft of the motor 12 through a coupling or a reducer and is rotatably installed on the mounting frame 11, a first driving shaft that is rotatably installed on the mounting frame 11, a first driven sheave 14 arranged on the first driving shaft, a first driving gear 15 rotatably connected to the mounting frame 11, and a first gear ring 7 arranged on the rotating cylinder 10. A shifting rod 18 is obliquely provided on the driving wheel 13, a protrusion 19 is provided at the end of the shifting rod 18, a locking sleeve is provided on the driving wheel 13, and a notch is provided on the locking sleeve, and the angle of the notch is 180°; the first driven sheave 14 is perpendicular to the driving wheel 13, and a plurality of first arc-shaped radial grooves 20 that can accommodate the protrusions 19 to slide into are provided on the first driven sheave 14, and a plurality of first locking arcs 21 surfaces that cooperate with the locking sleeve are provided on the first driven sheave 14. The first driven groove wheel 14 and the first driving gear 15 are coaxially driven or reduced-speed driven, and the rotating cylinder 10 is rotationally connected to the fixed frame and rotates around the steel casing driven by the first gear ring 7.

[0049] The driving wheel 13 is driven to rotate by the power member, so that the protrusion 19 on the driving wheel 13 is intermittently matched with the first arc-shaped radial groove 20 on the first driven groove wheel 14, so as to drive the first driven groove wheel 14 to rotate intermittently, thereby driving the first driving gear 15 and the first gear ring 7 to rotate intermittently, so as to achieve the effect of intermittently driving the rotating drum 10 to rotate.

[0050] like Figure 5 , Figure 6 and Figure 7As shown, an inner ring 25 is provided at the bottom of the inner wall of the rotating cylinder 10, and the vertical sliding assembly includes a second driving shaft rotatably mounted on the mounting frame 11, a second driven sheave on the second driving shaft, a second driving gear 17 rotatably connected to the mounting frame 11, a rotating ring rotatably connected to the top of the rotating cylinder 10 and a second gear ring 8 provided on the rotating ring, a third gear ring 24 provided on the inner wall of the rotating ring, a reciprocating screw 27 pair vertically rotatably provided on the inner ring 25 at the bottom of the rotating cylinder 10, and an adjusting gear pair drivingly connected between the third gear ring 24 and the reciprocating screw 27 pair. The second driving shaft passes through the inside of the first driving shaft, the second driven sheave is perpendicular to the driving wheel 13, the second driven sheave is provided with a plurality of second arc-shaped radial grooves 22 into which the protrusion 19 can slide, the second driven sheave is provided with a plurality of second locking arcs 23 surfaces matched with the locking sleeve, and the second driven sheave and the second driving gear 17 are coaxially driven or accelerated. The reciprocating screw 27 pair includes a reciprocating screw 27 and a guide rod 28 vertically arranged on the inner ring 25 at the bottom of the rotating cylinder 10, a mounting seat 30 is threadedly connected to the reciprocating screw 27 and slidably connected to the guide rod 28, and a brush plate 31 is also provided on the mounting seat 30, which is located at the front side of the welding gun along the rotating direction of the rotating cylinder 10, so as to clean the surface of the steel casing. The adjusting gear pair includes an acceleration transmission gear set, which includes a large gear 29 and a small gear 26 that mesh with each other, the large gear 29 meshes with the third gear ring 24, and the small gear 26 is coaxially connected with the reciprocating screw 27. Of course, multiple acceleration transmission gear sets can also be set to perform multi-stage acceleration transmission to meet the rotation requirements of the reciprocating screw 27.

[0051] The protrusion 19 on the active rotating wheel 13 cooperates with the second arc-shaped radial groove 22 on the second driven groove wheel to drive the second driven groove wheel to rotate intermittently, thereby driving the second driving gear 17 and the second gear ring 8 to rotate intermittently, and the mutual rotation between the rotating ring and the rotating cylinder 10 makes the third gear ring 24 drive the reciprocating screw 27 pair to rotate through the adjusting gear pair, thereby driving the mounting seat 30 to perform vertical reciprocating motion.

[0052] In this embodiment, when the first arcuate radial groove 20 and the second arcuate radial groove 22 are located in the same direction, the spacing between the end of the first arcuate radial groove 20 and the end of the second arcuate radial groove 22 is smaller than the diameter of the protrusion 19, and when the protrusion 19 of the driving wheel 13 cooperates with the first arcuate radial groove 20, the locking sleeve cooperates with the second locking arc 23 surface; when the protrusion 19 of the driving wheel 13 cooperates with the second arcuate radial groove 22, the locking sleeve cooperates with the first locking arc 21 surface; thereby, when the driving wheel 13 drives the first driven groove wheel 14 to rotate, the position of the second driven groove wheel is fixed, and the driving wheel 13 drives the second driven groove wheel to rotate, the position of the first driven groove wheel 14 is fixed, thereby ensuring the accuracy of the transmission process and the accuracy of the welding position, and at the same time, enabling the protrusion 19 to correctly shuttle between the first arcuate radial groove 20 and the second arcuate radial groove 22 to avoid jamming.

[0053] Compared with the prior art, the embodiment utilizes a driving mechanism to drive the horizontal rotating assembly and the vertical sliding assembly to operate intermittently and alternately, so that when the horizontal rotating assembly operates, it can drive the rotating cylinder 10, the mounting seat 30 and the welding gun installed on the mounting seat 30 to rotate around the steel casing at a certain angle; and when the vertical sliding assembly operates, it can drive the mounting seat 30 and the welding gun installed on the mounting seat to perform vertical reciprocating rotation along the steel casing, so that the welding gun on the mounting seat 30 can perform a complete peripheral circumferential seam welding process on the steel casing. In addition, during the welding process, the rotating cylinder 10 can also protect the surrounding environment, and can replace the current manual peripheral circumferential seam welding process in the steel casing docking, solving the problem of relying on manual welding in the traditional peripheral circumferential seam welding of steel casings, resulting in poor working environment and long working time. And it can effectively ensure the efficiency and quality of steel casing docking.

[0054] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any indirect modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An auxiliary device for steel casing welding, characterized in that: include: A fixing frame, comprising arc-shaped frames detachably connected to each other and symmetrically fixed to the surface of the steel casing; A rotating cylinder is rotatably connected to the fixed frame, and a mounting seat for mounting a welding gun is vertically slidably connected to the rotating cylinder; The driving mechanism comprises a power member arranged on the fixing frame, a horizontal rotating assembly driven by the power member and driving the rotating cylinder to rotate, and a vertical sliding assembly driven by the power member and driving the mounting seat to slide back and forth. The horizontal rotating assembly and the vertical sliding assembly operate intermittently and alternately.

2. The auxiliary device for steel casing welding according to claim 1, characterized in that: The horizontal rotation assembly comprises: A driving wheel is drivingly connected to the output end of the power member, a lever is obliquely arranged on the driving wheel, and a convex block is arranged at the end of the lever; A first driven sheave, which is perpendicular to the driving wheel and is provided with a plurality of first arc-shaped radial grooves into which the protrusions can slide; A first driving gear, drivingly connected to the first driven sheave; A first gear ring is provided on the rotating cylinder and meshes with the first driving gear.

3. The auxiliary device for steel casing welding according to claim 2, characterized in that: The vertical sliding assembly comprises: A second driven sheave is perpendicular to the driving wheel and symmetrically arranged with the first driven sheave, and the second driven sheave is provided with a plurality of second arc-shaped radial grooves into which the protrusions can slide; A rotating ring, rotatably connected to the rotating cylinder; A second driving gear, drivingly connected to the second driven sheave; a second gear ring, disposed on the rotating ring and meshing with the second driving gear; A third gear ring, arranged on the inner wall of the rotating ring; A reciprocating screw pair is vertically rotatably connected to the rotating cylinder, and the mounting seat is driven to move by the reciprocating screw pair; The adjusting gear pair is transmission-connected between the third gear ring and the reciprocating screw pair.

4. The auxiliary device for steel casing welding according to claim 3, characterized in that: The driving rotating wheel is provided with a locking sleeve, the locking sleeve is provided with a notch, and the first driven sheave and the second driven sheave are respectively provided with a plurality of first locking arc surfaces and a second locking arc surfaces matched with the locking sleeve.

5. The auxiliary device for steel casing welding according to claim 4, characterized in that: When the protrusion of the driving wheel cooperates with the first arc-shaped radial groove, the locking sleeve cooperates with the second locking arc surface; When the protrusion of the driving wheel cooperates with the second arc-shaped radial groove, the locking sleeve cooperates with the first locking arc surface.

6. The auxiliary device for steel casing welding according to claim 5, characterized in that: When the first arc-shaped radial groove and the second arc-shaped radial groove are located in the same direction, the distance between the end of the first arc-shaped radial groove and the end of the second arc-shaped radial groove is smaller than the diameter of the protrusion.

7. A steel casing welding auxiliary device according to any one of claims 3 to 6, characterized in that: The adjusting gear pair comprises a plurality of accelerating transmission gear sets, and the accelerating transmission gear sets are sequentially transmission-connected between the third gear ring and the reciprocating screw pair.

8. The auxiliary device for steel casing welding according to claim 1, characterized in that: The arc frame comprises a first frame body, a second frame body and a connecting frame arranged between the first frame body and the second frame body respectively matched with the surface of the steel casing, and ears are arranged at the ends of the first frame body and the second frame body.

9. The auxiliary device for steel casing welding according to claim 1, characterized in that: The inner walls of the first frame and the second frame are both provided with connecting rings that match the surface of the steel casing.

10. The auxiliary device for steel casing welding according to claim 1, characterized in that: The mounting seat is also provided with a brush plate located at the front side of the welding gun along the rotating direction of the rotating cylinder.

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