CN115673656B - Welding device for oblique equal-diameter stainless steel pipes - Google Patents

Welding device for oblique equal-diameter stainless steel pipes Download PDF

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Publication number
CN115673656B
CN115673656B CN202310005147.9A CN202310005147A CN115673656B CN 115673656 B CN115673656 B CN 115673656B CN 202310005147 A CN202310005147 A CN 202310005147A CN 115673656 B CN115673656 B CN 115673656B
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stainless steel
welding
steel pipe
rotating shaft
synchronous rotating
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CN115673656A (en
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史靓
史俊
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Liyang Jiaxiong Stainless Steel Equipment Co ltd
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Liyang Jiaxiong Stainless Steel Equipment Co ltd
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Abstract

The invention discloses a welding device for oblique equal-diameter stainless steel pipes, and belongs to the technical field of welding of stainless steel pipes. The device comprises an equipment frame, a synchronous rotating shaft A and a synchronous rotating shaft B which are coaxially arranged in a rotating mode, an angle adjusting sliding block A, an angle adjusting sliding block B, a clamping assembly A and a clamping assembly B, a steel pipe included angle adjusting assembly for adjusting welding included angles of the stainless steel pipe A and the stainless steel pipe B, a steel pipe welding positioning assembly for welding positioning, a welding head for welding the stainless steel pipe A and the stainless steel pipe B, a flexible welding driving assembly for driving the welding head to carry out flexible welding, and a synchronous rotating driving assembly for driving the synchronous rotating shaft A and the synchronous rotating shaft B to synchronously rotate. The welding device has reasonable structure, can flexibly weld two oblique equal-diameter stainless steel pipes at multiple included angles, and has high welding efficiency and welding quality.

Description

Welding device for oblique equal-diameter stainless steel pipes
Technical Field
The invention mainly relates to the technical field of welding of stainless steel pipes, in particular to a welding device for oblique equal-diameter stainless steel pipes.
Background
Stainless steel pipes are widely used for industrial transportation pipes, such as petroleum, chemical and medical use, and mechanical components, because of their hollow characteristics. In the actual use process, two stainless steel pipes are often required to be welded in a straight line or in an oblique way. For bias welding, the prior art generally moves the weld head around the weld curve to effect circumferential welding. Thus, the prior art, although achieving bias welding, still has the following drawbacks: 1. the welding mode of stainless steel pipe static and welding head curve motion is adopted to complicate the welding process, and the contact distance between the welding head and the welding seam is not well controlled, so that the welding efficiency and the welding quality are not high; 2. when the included angle between the two stainless steel pipes is changed, the movement track of the welding head needs to be readjusted, and the welding movement path of the welding head is poor in universality. Therefore, there is a need to design a welding device that can perform rapid high quality welding of two diagonally intersecting stainless steel pipes.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: aiming at the technical problems existing in the prior art, the invention provides the welding device which has reasonable structure, performs circumferential welding through the rotation of the elliptical welding seam and the flexible distance adjustment of the welding head, can perform multi-included angle welding on two oblique equal-diameter stainless steel pipes, and has high welding efficiency and welding quality.
In order to solve the problems, the invention provides the following solutions: the utility model provides a welding set of miter constant diameter stainless steel pipe, includes the equipment frame, coaxial line rotate install in synchronous pivot A and synchronous pivot B on the equipment frame, slide and do not rotate install in angle modulation slider A on the synchronous pivot A, slide and do not rotate install in angle modulation slider B on the synchronous pivot B adopts connecting piece A to install be used for the centre gripping subassembly A of centre gripping to wait to weld stainless steel pipe A on the angle modulation slider A, install on angle modulation slider B adopting connecting piece B be used for the centre gripping subassembly B of centre gripping to wait to weld stainless steel pipe B install synchronous pivot A and synchronous pivot B, through control angle modulation slider A and angle modulation slider B's relative slip is right stainless steel pipe A and stainless steel pipe B welding angle regulation component of welding orientation is used for right stainless steel pipe A and stainless steel pipe B weld joint, install on the equipment frame the welding joint is right stainless steel pipe A and stainless steel pipe B carries out the flexibility and the flexible and the synchronous rotation drive synchronous rotation of synchronous drive synchronous rotation of the pivot A.
And an oval welding seam is formed between the oblique stainless steel pipe A and the stainless steel pipe B, after the steel pipe welding positioning assembly is used for welding and positioning the stainless steel pipe A and the stainless steel pipe B, the center of the oval welding seam is positioned on the axes of the synchronous rotating shaft A and the synchronous rotating shaft B, and the plane where the oval welding seam is positioned is perpendicular to the axes of the synchronous rotating shaft A and the synchronous rotating shaft B.
Further, the clamping assembly A and the clamping assembly B are symmetrically arranged on the left and right of the plane where the elliptical welding seam is located; the clamping component A and the clamping component B are identical in structure and both comprise: the device comprises an arc-shaped plate A, an arc-shaped plate B, an elastic pad A and an elastic pad B which are respectively arranged on the inner surfaces of the arc-shaped plate A and the arc-shaped plate B, an ear plate A and an ear plate B which are respectively fixedly arranged at the adjacent ends of the arc-shaped plate A and the arc-shaped plate B, and a bolt for locking the ear plate A and the ear plate B; the other ends of the arc-shaped plates A and B, which are adjacent, are hinged; the arc plate A in the clamping assembly A is fixedly connected with the connecting piece A, and the arc plate A in the clamping assembly B is fixedly connected with the connecting piece B.
Further, the steel pipe included angle adjusting assembly includes: the device comprises a support plate A fixedly arranged on a synchronous rotating shaft A, a support plate B fixedly arranged on a synchronous rotating shaft B, an electric telescopic rod A and an electric telescopic rod B; the cylinder body part of the electric telescopic rod A is arranged on the support plate A, and the output rod of the electric telescopic rod A is fixedly connected with the angle adjusting sliding block A; the cylinder body part of the electric telescopic rod B is arranged on the support plate B, and the output rod of the electric telescopic rod B is fixedly connected with the angle adjusting sliding block B.
Further, the steel pipe welding positioning assembly includes: an electric telescopic rod C which is arranged on the synchronous rotating shaft A by adopting a support plate A and a positioning baffle plate which is connected with an output rod of the electric telescopic rod C; when the centers of the elliptic welding seams are positioned on the axes of the synchronous rotating shaft A and the synchronous rotating shaft B, the positioning baffle is just abutted against the stainless steel pipe A and the stainless steel pipe B.
Further, the flexible welding drive assembly includes: a support plate C fixedly arranged on the equipment rack, a fixed sleeve, a metal spring, a positioning column, a winding motor, a winding wheel and a flexible rope, wherein one end of the fixed sleeve is fixedly connected with the support plate C, the other end of the fixed sleeve is connected with the welding head in a sliding manner, the metal spring is arranged in the fixed sleeve, the two ends of the metal spring are respectively connected with the support plate C and the welding head, the positioning column is fixedly arranged on the welding head, the winding motor is arranged on the support plate C, the winding wheel is fixedly arranged on an output shaft of the winding motor, and one end of the flexible rope is wound on the winding wheel, and the other end of the flexible rope is fixedly connected with the positioning column; the metal spring is always in a compressed state.
Further, the synchronous rotation driving assembly includes: the device comprises a synchronous rotating shaft A, a synchronous rotating shaft B, two driven gears, an idler gear D, an idler gear C, an idler gear B and an idler gear A, wherein the driven gears are respectively fixedly arranged on the synchronous rotating shaft A and the synchronous rotating shaft B, the two intermediate shafts A and the two intermediate shafts B are rotatably arranged on the device frame, a gear motor is arranged on the device frame, a driving gear is fixedly arranged on an output shaft of the gear motor, the idler gear D and the idler gear C are fixedly arranged on the intermediate shafts B, the idler gear B is fixedly arranged on the intermediate shafts A and is in meshed transmission with the idler gear C, and the idler gear A is fixedly arranged on the intermediate shafts A and is in meshed transmission with the driven gear; the driving gear is meshed with the idler gear D for transmission; the two intermediate shafts A are splayed and symmetrical with respect to the plane where the elliptical welding seam is located; the two intermediate shafts B are parallel to each other and symmetrical about the plane of the elliptical weld joint.
Compared with the prior art, the invention has the following advantages and beneficial effects: the welding device for the oblique equal-diameter stainless steel pipes is provided with the synchronous rotation driving assembly for driving the synchronous rotating shaft A and the synchronous rotating shaft B to synchronously rotate, so that the stainless steel pipes A and B can be driven to rotate around the central axis of an elliptical welding line in the welding process, the elliptical welding line is formed to rotate around the center of the welding line, and the welding efficiency is remarkably improved in a circumferential welding mode that a welding head does not rotate; the metal spring and the flexible rope in the flexible welding driving assembly act together, and the distance between the welding head and the center of the elliptical welding line is adaptively adjusted, so that the welding head is fully contacted with the elliptical welding line, flexible welding is realized, and the welding quality is improved; the steel pipe included angle adjusting assembly can drive the angle adjusting sliding block A and the angle adjusting sliding block B to be far away from or close to each other, change the welding included angle between the stainless steel pipe A and the stainless steel pipe B, and realize multi-included angle welding of the stainless steel pipe A and the stainless steel pipe B. Therefore, the welding device has reasonable structure, performs circumferential welding through rotation of the elliptical welding seam and flexible distance adjustment of the welding head, can perform multi-included angle welding on two oblique equal-diameter stainless steel pipes, and has high welding efficiency and welding quality.
Drawings
Fig. 1 is a schematic structural diagram of a welding device for oblique equal-diameter stainless steel pipes.
Fig. 2 is a schematic structural view of a flexible welding drive assembly in accordance with the present invention.
Fig. 3 is a schematic structural diagram of a clamping assembly a according to the present invention.
Fig. 4 is a schematic diagram of the principle of adjusting the welding angle between the stainless steel pipe A and the stainless steel pipe B in the invention.
10-equipment rack in the figure; 11-stainless steel pipe a; 12-stainless steel pipe B; 21-a synchronous rotating shaft A; 22-a synchronous rotating shaft B; 23-angle adjusting slide block A; 24-angle adjusting slide block B; 25-a connector a; 26-a connector B; 27-a clamping assembly a; 271-an arcuate plate a; 272-arc plate B; 273-elastic pad a; 274-resilient pad B; 275-ear panel a; 276-ear panel B; 28-a clamping assembly B; 29-a welding head; 31-a support plate a; 32-a support plate B; 33-an electric telescopic rod A; 34-an electric telescopic rod B; 41-positioning a baffle; 42-an electric telescopic rod C; 51-a support plate C; 52-a fixed sleeve; 53-a metal spring; 54-positioning columns; 55-a flexible rope; 56-reel; 57-winding motor; 61-driven gear; 62-intermediate shaft a; 63-idler a; 64-idler B; 65-intermediate shaft B; 66-idler C; 67-idler D; 68-a driving gear; 69-a speed reducing motor.
Detailed Description
The invention will be described in further detail below with reference to the drawings and the specific examples.
Referring to fig. 1, the welding device for the oblique equal-diameter stainless steel tube comprises a device frame 10, a synchronous rotating shaft a21 and a synchronous rotating shaft B22 which are coaxially arranged on the device frame 10, an angle adjusting slide block a23 which is arranged on the synchronous rotating shaft a21 in a sliding and non-rotating mode, an angle adjusting slide block B24 which is arranged on the synchronous rotating shaft B22 in a sliding and non-rotating mode, a clamping component a27 which is arranged on the angle adjusting slide block a23 and is used for clamping a stainless steel tube a11 to be welded, a clamping component B28 which is arranged on the angle adjusting slide block B24 and is used for clamping a stainless steel tube B12, a steel tube welding positioning component which is arranged on the device frame 10 and is used for welding the stainless steel tube a11 and the stainless steel tube B12, a welding head 29 which is arranged on the device frame 10 and is used for welding the stainless steel tube a11 and the stainless steel tube B12, a flexible driving component a21 and the synchronous rotating shaft B22 to be driven by the relative sliding of the angle adjusting slide block a23 and the angle adjusting slide block B24, and the synchronous rotating component B12 is driven by synchronous rotation. In specific implementation, the equipment rack 10 is fixedly arranged on four upright posts, and the four upright posts are fixedly arranged on the ground, so that the equipment rack 10 is suspended, and the stainless steel pipe A11 and the stainless steel pipe B12 can rotate around the axes of the synchronous rotating shaft A21 and the synchronous rotating shaft B22; the equipment rack 10 is a horizontally placed U-shaped rack, and one end of the outer side of the synchronous rotating shaft A21 and one end of the outer side of the synchronous rotating shaft B22 are respectively rotatably arranged on two side plates of the U-shaped rack by adopting a rolling bearing; the central axis of the clamping component A27 is oblique to the axis of the synchronous rotating shaft A21, and the central axis of the clamping component B28 is oblique to the axis of the synchronous rotating shaft B22, so that the stainless steel pipe A11 clamped by the clamping component A27 and the stainless steel pipe B12 clamped by the clamping component B28 can form a V-shaped structure for welding; the steel pipe included angle adjusting assembly enables the angle adjusting slide block A23 and the angle adjusting slide block B24 to synchronously and reversely move, namely the angle adjusting slide block A23 and the angle adjusting slide block B24 are far away from or close to each other. When the angle adjusting slide block A23 and the angle adjusting slide block B24 are far away from each other, the welding included angle between the stainless steel pipe A11 and the stainless steel pipe B12 is increased; as the angle adjuster slider a23 and the angle adjuster slider B24 approach each other, the welding angle between the stainless steel pipe a11 and the stainless steel pipe B12 decreases. Therefore, the steel pipe included angle adjusting assembly controls the movement directions of the angle adjusting sliding block A23 and the angle adjusting sliding block B24, and the adjustment of various welding included angles of the stainless steel pipe A11 and the stainless steel pipe B12 can be realized. The welding head 29 is of prior art and will not be described in detail here.
An elliptical welding seam is formed between the oblique stainless steel pipe A11 and the stainless steel pipe B12, after the stainless steel pipe A11 and the stainless steel pipe B12 are welded and positioned by the steel pipe welding positioning assembly, the center of the elliptical welding seam is positioned on the axes of the synchronous rotating shaft A21 and the synchronous rotating shaft B22, and the plane where the elliptical welding seam is positioned is perpendicular to the axes of the synchronous rotating shaft A21 and the synchronous rotating shaft B22. When the welding machine is particularly used, the synchronous rotation driving assembly drives the coaxial synchronous rotating shaft A21 and the synchronous rotating shaft B22 to synchronously rotate, and the clamping assembly A27 and the clamping assembly B28 respectively drive the stainless steel pipe A11 and the stainless steel pipe B12 in the V shape to rotate around the axes of the synchronous rotating shaft A21 and the synchronous rotating shaft B22, namely around the central axis of the elliptical welding seam. The elliptical weld rotates about its own center, while the flexible welding drive assembly can drive the welding head 29 to adaptively move away from or toward the center of the elliptical weld during welding, so that the welding head 29 can perform circumferential welding on the rotating elliptical weld.
Referring to fig. 1 and 3, preferably, the clamping assemblies a27 and B28 are symmetrically disposed about a plane in which the elliptical weld is located; clamping assembly a27 and clamping assembly B28 are identical in structure and each comprise: an arc plate A271, an arc plate B272, an elastic pad A273 and an elastic pad B274 which are respectively arranged on the inner surfaces of the arc plate A271 and the arc plate B272, an ear plate A275 and an ear plate B276 which are respectively and fixedly arranged on the adjacent ends of the arc plate A271 and the arc plate B272, and a bolt for locking the ear plate A275 and the ear plate B276; the other end of the arc-shaped plate A271 adjacent to the arc-shaped plate B272 is hinged; the arc plate A271 in the clamping assembly A27 is fixedly connected with the connecting piece A25, and the arc plate A271 in the clamping assembly B28 is fixedly connected with the connecting piece B26. In particular, the arc-shaped plate a271 and the arc-shaped plate B272 have equal curvature radius, the elastic pad a273 and the elastic pad B274 can be made of nonmetallic materials which are obviously elastically deformed, and the lug plate a275 and the lug plate B276 are provided with through holes which allow bolts to pass through. When the stainless steel pipe B12 is particularly used, the stainless steel pipe A11 and the stainless steel pipe B12 are respectively arranged between the corresponding arc-shaped plates A271 and B272, so that the stainless steel pipe A11 is simultaneously contacted with the elastic pad A273 and the elastic pad B274 in the clamping assembly A27, the stainless steel pipe B12 is simultaneously contacted with the elastic pad A273 and the elastic pad B274 in the clamping assembly B28, and the clamping of the stainless steel pipe A11 and the stainless steel pipe B12 is realized by locking the lug plates A275 and the lug plates B276 through bolts; in order to make angle modulation slider A23 and angle modulation slider B24 keep away from each other or be close to each other after, centre gripping subassembly A27 and centre gripping subassembly B28's axis coincide with nonrust steel pipe A11 and nonrust steel pipe B12's axis respectively, arc A271 in the centre gripping subassembly A27 is adjustable angle fixed connection with connecting piece A25, arc A271 in the centre gripping subassembly B28 is adjustable angle fixed connection with connecting piece B26. As an embodiment one, two arc plates a271 are respectively hinged with a connecting piece a25 and a connecting piece B26, a bolt through hole is formed on the arc plates a271, arc through grooves matched with the bolt through holes are formed on the connecting piece a25 and the connecting piece B26, and the arc plates a271, the connecting piece a25 and the connecting piece B26 can be locked at any angle by means of bolts, so that the angle-adjustable fixed connection is realized.
Referring to fig. 1 and 4, preferably, the steel pipe included angle adjusting assembly includes: a support plate A31 fixedly arranged on the synchronous rotating shaft A21, a support plate B32 fixedly arranged on the synchronous rotating shaft B22, an electric telescopic rod A33 and an electric telescopic rod B34; the cylinder body part of the electric telescopic rod A33 is arranged on the support plate A31, and the output rod of the electric telescopic rod A33 is fixedly connected with the angle adjusting slide block A23; the cylinder body part of the electric telescopic rod B34 is arranged on the support plate B32, and the output rod of the electric telescopic rod B is fixedly connected with the angle adjusting sliding block B24. In specific implementation, the support plate A31 and the support plate B32 are respectively fixedly arranged on one end of the synchronous rotating shaft A21 and one end of the synchronous rotating shaft B22, which are adjacent; when the output rod of the electric telescopic rod A33 and the output rod of the electric telescopic rod B34 are synchronously stretched, the angle adjusting sliding block A23 and the angle adjusting sliding block B24 are far away from each other, the included angle between the stainless steel pipe A11 and the stainless steel pipe B12 is increased, and the long axis of the elliptical welding seam is reduced; when the output rod of the electric telescopic rod A33 and the output rod of the electric telescopic rod B34 are synchronously shortened, the angle adjusting sliding block A23 and the angle adjusting sliding block B24 are close to each other, the included angle between the stainless steel pipe A11 and the stainless steel pipe B12 is reduced, and the long axis of the elliptical welding seam is enlarged.
Preferably, the steel pipe welding positioning assembly includes: an electric telescopic rod C42 arranged on the synchronous rotating shaft A21 by adopting a support plate A31 and a positioning baffle 41 connected with an output rod of the electric telescopic rod C42; when the centers of the elliptical welding seams are positioned on the axes of the synchronous rotating shaft A21 and the synchronous rotating shaft B22, the positioning baffle 41 just abuts against the stainless steel pipe A11 and the stainless steel pipe B12. In particular, the distance between the positioning baffle 41 and the axis of the synchronous rotating shaft a21 is equal to the half major axis of the elliptical weld. In order to adapt to welding of various included angles of the stainless steel pipe A11 and the stainless steel pipe B12, the electric telescopic rod C42 is arranged on the support plate A31 in a sliding manner along the radial direction of the synchronous rotating shaft A21, and when the long axis of the elliptical welding line is reduced, the electric telescopic rod C42 slides inwards along the radial direction of the synchronous rotating shaft A21; when the long axis of the elliptical welding seam becomes large, the electric telescopic rod C42 slides outwards along the radial direction of the synchronous rotating shaft A21; after the position of the electric telescopic rod C42 is adjusted, the electric telescopic rod C42 can be locked at the current position by using a set screw. When welding and positioning are needed, the output rod of the electric telescopic rod C42 is extended, so that the positioning baffle 41 translates rightwards, after the positioning baffle 41 welds and positions the stainless steel pipe A11 and the stainless steel pipe B12, the clamping assembly A27 and the clamping assembly B28 respectively clamp the stainless steel pipe A11 and the stainless steel pipe B12, and then the output rod of the electric telescopic rod C42 is shortened, so that the positioning baffle 41 translates leftwards, and a welding space is reserved for the welding head 29.
Referring to fig. 1 and 2, preferably, the flexible welding drive assembly includes: a support plate C51 fixedly mounted on the equipment rack 10, a fixed sleeve 52 with one end fixedly connected with the support plate C51 and the other end slidingly connected with the welding head 29, a metal spring 53 mounted inside the fixed sleeve 52 and with two ends respectively connected with the support plate C51 and the welding head 29, a positioning column 54 fixedly mounted on the welding head 29, a winding motor 57 mounted on the support plate C51, a winding wheel 56 fixedly mounted on an output shaft of the winding motor 57, and a flexible rope 55 with one end wound on the winding wheel 56 and the other end fixedly connected with the positioning column 54; the metal spring 53 is always in a compressed state. In particular use, the winding motor 57 drives the reel 56 to wind the flexible cord 55, the welding head 29 is far away from the oval weld, leaving a positioning space for positioning the baffle 41; the reel 56 is driven by the winding motor 57 to release the flexible cord 55, and the welding head 29 moves toward the elliptical weld by the spring force of the metal spring 53 until it abuts against the elliptical weld. In the welding process, when the welding head 29 is positioned at the first limit position, the contact point of the welding head 29 and the elliptic welding seam is a major axis endpoint; when the welding head 29 is positioned at the second limit position, the contact point of the welding head 29 and the elliptical weld is the short axis endpoint. The metal spring 53 in the compressed state can enable the welding head 29 to adaptively translate from the long axis end point to the short axis end point, and can well keep contact with the elliptical welding seam, so that welding quality is improved.
Preferably, the synchronous rotation driving assembly includes: two driven gears 61 fixedly mounted on the synchronous rotating shafts a21 and B22, two intermediate shafts a62 and B65 rotatably mounted on the equipment rack 10, a gear reduction motor 69 mounted on the equipment rack 10, a driving gear 68 fixedly mounted on an output shaft of the gear reduction motor 69, an idler gear D67 and an idler gear C66 fixedly mounted on the intermediate shafts B65, and an idler gear B64 fixedly mounted on the intermediate shaft a62 and engaged with the idler gear C66 and an idler gear a63 engaged with the driven gear 61; the driving gear 68 is meshed with the idler D67 for transmission; the two intermediate shafts A62 are splayed and symmetrical about the plane of the elliptical welding seam; the two intermediate shafts B65 are parallel to each other and symmetrical about the plane of the oval weld. In specific use, the gear motor 69 drives the driving gear 68 to rotate, the driving gear 68 drives the idler gears D67 on two sides to rotate, the idler gear C66 drives the idler gear B64 to rotate in a decelerating manner, and the idler gear A63 drives the driven gear 61 to rotate, so that the synchronous rotating shaft A21 and the synchronous rotating shaft B22 synchronously rotate slowly.
The working process and working principle of the invention are as follows: firstly, an output rod of an electric telescopic rod C42 drives a positioning baffle 41 to translate rightwards; secondly, placing the stainless steel pipe A11 and the stainless steel pipe B12 with the chamfer surfaces in the clamping assembly A27 and the clamping assembly B28 respectively, enabling the stainless steel pipe A11 and the stainless steel pipe B12 to be just abutted against the positioning baffle 41, enabling the centers of the oval welding seams to be just located on the axes of the synchronous rotating shaft A21 and the synchronous rotating shaft B22, and locking the lug plate A275 and the lug plate B276 through bolts after welding and positioning; thirdly, the output rod of the electric telescopic rod C42 drives the positioning baffle 41 to translate leftwards, so that a welding space is reserved for the welding head 29; a fourth step, a winding motor 57 drives a winding reel 56 to release the flexible rope 55, so that the welding head 29 is abutted against the elliptical weld between the stainless steel tube A11 and the stainless steel tube B12; fifthly, welding the oval welding seam by the welding head 29, and simultaneously, starting to work by a speed reducing motor 69 in the synchronous rotation driving assembly, driving the synchronous rotating shaft A21 and the synchronous rotating shaft B22 to synchronously and slowly rotate, namely, enabling the oval welding seam to rotate around the center of the welding seam, and enabling the welding head 29 capable of adaptively adjusting the distance to perform circumferential welding on the rotating oval welding seam; after welding of the oblique stainless steel pipe A11 and the oblique stainless steel pipe B12 is finished, the winding motor 57 drives the winding wheel 56 to wind the flexible rope 55, and the welding head 29 is far away from the elliptical welding seam; seventh, the bolts are removed to release the ear plate a275 and the ear plate B276, and the welded stainless steel pipes a11 and B12 are removed.
The above is merely a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that do not undergo the inventive work should fall within the scope of the present invention.

Claims (3)

1. The utility model provides a welding set of skew constant diameter stainless steel pipe, includes equipment rack (10), its characterized in that still includes:
the synchronous rotating shaft A (21) and the synchronous rotating shaft B (22) which are arranged on the equipment frame (10) are coaxially rotated, the angle adjusting slide block A (23) which is arranged on the synchronous rotating shaft A (21) is slid and does not rotate, the angle adjusting slide block B (24) which is arranged on the synchronous rotating shaft B (22) is slid and does not rotate, the clamping component A (27) which is arranged on the angle adjusting slide block A (23) and is used for clamping the stainless steel pipe A (11) to be welded is arranged on the angle adjusting slide block A (23), the clamping component B (28) which is arranged on the angle adjusting slide block B (24) and is used for clamping the stainless steel pipe B (12) to be welded is arranged on the angle adjusting slide block B (24), the stainless steel pipe A (11) and the stainless steel pipe B (12) are positioned by adopting the connecting component B (26), the stainless steel pipe A (11) and the stainless steel pipe B (12) are welded together by controlling the relative sliding of the angle adjusting slide block A (23) and the angle adjusting slide block B (24) to be welded together, the stainless steel pipe A (11) and the stainless steel pipe B (12) are welded together by the flexible welding component B (29) is arranged on the flexible welding equipment (10) and the flexible welding device (10) which is arranged on the stainless steel pipe (11), and a synchronous rotation driving assembly for driving the synchronous rotation shaft A (21) and the synchronous rotation shaft B (22) to synchronously rotate;
an oval welding line is formed between the oblique stainless steel pipe A (11) and the stainless steel pipe B (12), after the stainless steel pipe A (11) and the stainless steel pipe B (12) are welded and positioned by the steel pipe welding positioning assembly, the center of the oval welding line is positioned on the axes of the synchronous rotating shaft A (21) and the synchronous rotating shaft B (22), and the plane where the oval welding line is positioned is perpendicular to the axes of the synchronous rotating shaft A (21) and the synchronous rotating shaft B (22);
the steel pipe contained angle adjusting part includes: a support plate A (31) fixedly arranged on the synchronous rotating shaft A (21), a support plate B (32) fixedly arranged on the synchronous rotating shaft B (22), an electric telescopic rod A (33) and an electric telescopic rod B (34); the cylinder body part of the electric telescopic rod A (33) is arranged on the support plate A (31), and the output rod of the electric telescopic rod A is fixedly connected with the angle adjusting sliding block A (23); the cylinder body part of the electric telescopic rod B (34) is arranged on the support plate B (32), and the output rod of the electric telescopic rod B is fixedly connected with the angle adjusting sliding block B (24);
the flexible welding drive assembly includes: a support plate C (51) fixedly arranged on the equipment rack (10), a fixed sleeve (52) with one end fixedly connected with the support plate C (51) and the other end slidingly connected with the welding head (29), a metal spring (53) arranged in the fixed sleeve (52) and with two ends respectively connected with the support plate C (51) and the welding head (29), a positioning column (54) fixedly arranged on the welding head (29), a winding motor (57) arranged on the support plate C (51), a winding wheel (56) fixedly arranged on an output shaft of the winding motor (57), and a flexible rope (55) with one end wound on the winding wheel (56) and the other end fixedly connected with the positioning column (54); the metal spring (53) is always in a compressed state;
the synchronous rotation driving assembly includes: two driven gears (61) respectively fixedly arranged on the synchronous rotating shaft A (21) and the synchronous rotating shaft B (22), two intermediate shafts A (62) and two intermediate shafts B (65) rotatably arranged on the equipment frame (10), a gear motor (69) arranged on the equipment frame (10), a driving gear (68) fixedly arranged on an output shaft of the gear motor (69), an idler D (67) and an idler C (66) fixedly arranged on the intermediate shafts B (65), an idler B (64) fixedly arranged on the intermediate shafts A (62) and meshed with the idler C (66) for transmission and an idler A (63) fixedly arranged on the intermediate shafts A (62) and meshed with the driven gears (61) for transmission; the driving gear (68) is meshed with the idler wheel D (67) for transmission; the two intermediate shafts A (62) are splayed and symmetrical about the plane of the elliptical weld joint; the two intermediate shafts B (65) are parallel to each other and symmetrical about the plane of the oval weld.
2. The welding device for the diagonal equal-diameter stainless steel pipes according to claim 1, wherein the clamping assembly A (27) and the clamping assembly B (28) are symmetrically arranged on the left and right sides of a plane where the elliptical welding seam is arranged; the clamping assembly A (27) and the clamping assembly B (28) are identical in structure and comprise: an arc plate A (271), an arc plate B (272), an elastic pad A (273) and an elastic pad B (274) respectively arranged on the inner surfaces of the arc plate A (271) and the arc plate B (272), an ear plate A (275) and an ear plate B (276) respectively fixed on the adjacent ends of the arc plate A (271) and the arc plate B (272), and a bolt for locking the ear plate A (275) and the ear plate B (276); the other ends of the arc-shaped plates A (271) and the arc-shaped plates B (272) which are adjacent are hinged; an arc plate A (271) in the clamping assembly A (27) is fixedly connected with the connecting piece A (25), and an arc plate A (271) in the clamping assembly B (28) is fixedly connected with the connecting piece B (26).
3. The welding device for oblique-crossing equal-diameter stainless steel pipes as set forth in claim 1, wherein said steel pipe welding positioning assembly comprises: an electric telescopic rod C (42) which is arranged on the synchronous rotating shaft A (21) by adopting a support plate A (31), and a positioning baffle plate (41) which is connected with an output rod of the electric telescopic rod C (42); when the centers of the elliptic welding seams are positioned on the axes of the synchronous rotating shaft A (21) and the synchronous rotating shaft B (22), the positioning baffle plate (41) is just abutted against the stainless steel pipe A (11) and the stainless steel pipe B (12).
CN202310005147.9A 2023-01-04 2023-01-04 Welding device for oblique equal-diameter stainless steel pipes Active CN115673656B (en)

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