Stainless steel pipe sewing and welding equipment

Abstract

The utility model relates to a stainless steel pipe seaming and welding equipment, which comprises a base, a ground beam and a sliding seat, the top side of the base is fixedly connected with two bearing frames, the bearing frames are provided with a top beam, the top side of the top beam is provided with two lower concave pits, the openings of the lower concave pits are obliquely arranged, the lower concave pits are internally and rotatably provided with lower side pressing rollers, and the lower side pressing rollers are provided with upper side pressing rollers. The two lower side pressing rollers are symmetrically arranged, the rotating axes of the lower side pressing rollers are obliquely and downwards arranged from outside to inside, a lower driving motor is fixedly connected to the bottom side of the top beam and used for driving the lower side pressing rollers, the base is fixedly connected with two mounting bases, the mounting bases are arranged in the longitudinal direction, and the lower driving motor is used for driving the lower side pressing rollers. And each mounting seat is matched with one bearing frame. The two edges of the rolled plate can be accurately sewed and welded, so that the product quality is improved.

Description

Technical Field

[0001] The utility model relates to welding equipment, in particular to stainless steel pipe suture welding equipment. Background Art

[0002] Welding seam is a welding technology that rolls the original sheet into a tube and then welds the two edges of the sheet. Welding seam is generally used to weld long pipes. The corresponding specifications of welding seam equipment should be selected according to the diameter of the pipe.

[0003] The welding and seaming equipment consists of a welding frame, a guide rail and a supporting slide. The welding frame is provided with a plurality of pressing rollers, and the pressing rollers jointly press the outer wall of the tubular plate, thereby pressing the two seaming edges of the tubular plate together, and then allowing the welding head to weld the edges that are close together.

[0004] The welding and seaming equipment in the prior art is only equipped with a welding frame, and the pressing rollers provided on the welding frame can only press one cross section of the rolled plate at any time, so that the two edges of the rolled plate cannot be accurately attached together, and it is difficult to ensure the welding accuracy between the two. Utility Model Content

[0005] The utility model aims to provide a stainless steel pipe suturing and welding device, which can accurately suturing and welding two edges of a rolled plate, thereby improving product quality.

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

[0007] A stainless steel pipe suture welding device comprises a base, a ground beam and a sliding seat, the top side of the base is fixedly connected with two supporting frames, the supporting frames are provided with a top beam, the top side of the top beam is provided with two lower pits, the openings of the lower pits are inclined, lower pressing rollers are rotatably provided in the lower pits, the two lower pressing rollers are symmetrically arranged, the rotation axis of the lower pressing rollers is inclined downward from the outside to the inside, the bottom side of the top beam is fixedly connected with a lower driving motor, the lower driving motor is used to drive the lower pressing rollers, the base is fixedly connected with two mounting seats, the mounting seats are arranged in the longitudinal direction, Each of the mounting seats is matched with a supporting bracket, and the mounting seat is arranged on the side of the supporting bracket matched therewith. The mounting seat is fixedly connected with a vertical hydraulic cylinder, and the top end of the piston rod of the vertical hydraulic cylinder is fixedly connected with a transverse arm body, and the bottom wall of the transverse arm body is provided with an upper pit, and an upper clamping roller is rotatably provided in the upper pit, and the transverse arm body is fixedly connected with an upper driving motor, and the upper driving motor is used to drive the upper clamping roller, and the sliding seat is slidably matched with the ground beam, and the sliding seat is fixedly connected with a supporting seat, and the supporting seat is provided with a supporting notch, and the supporting notch can be inserted into the rear end edge of the steel pipe.

[0008] Specifically, one end of the transverse arm body is bifurcated to form two connecting arms. The two connecting arms are fixedly connected to the top end of the piston rod through a rectangular connecting pin, and the cross-section of the rectangular connecting pin is rectangular.

[0009] Specifically, the supporting bracket includes two columns, the top beam and the reinforcing frame. The top beam is welded between the top ends of the two columns, and the reinforcing frame is welded between the lower parts of the two columns. The reinforcing frame is in the shape of a cuboid, and the bottom ends of the columns and the lower side of the reinforcing frame are both welded to the base.

[0010] Specifically, the included angle between the rotation axis of the lower pressing roller and the horizontal plane is 20° - 40°.

[0011] Specifically, a bracket is fixedly connected to the rear wall of the transverse arm body located on the front side, and a welding head is fixedly connected to the bracket. The welding head is arranged vertically downward.

[0012] Specifically, an installation outer edge is provided at the bottom end of the mounting seat. The installation outer edge is fixedly connected to the base through screws. Reinforcing rib plates are provided on the side wall of the mounting seat, and the bottom edges of the reinforcing rib plates are located on the top wall of the installation outer edge.

[0013] Specifically, an installation outer edge is provided at the bottom end of the cylinder block of the vertical hydraulic cylinder. The installation outer edge is fixedly connected to the top end of the mounting seat through screws.

[0014] Specifically, a guide plate is fixedly connected to the top wall of the ground beam. The lateral two edges of the guide plate protrude beyond the ground beam. The cross-section of the sliding seat is in the shape of a U. Two groups of traveling rollers are arranged along the front and back on the two inner side walls of the sliding seat. The two groups of traveling rollers are arranged on the top sides of the lateral two edges of the guide plate. A traveling motor is fixedly connected to the top wall of the sliding seat, and the traveling motor is used to drive the traveling rollers.

[0015] Specifically, a supporting block is fixedly connected to the front side of the top of the supporting seat. A supporting notch is provided on the front side of the supporting block. A vertical pin hole is provided in the supporting block, and a vertical pin can be inserted into the vertical pin hole.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] The coiled stainless steel plate sequentially passes through two supporting brackets. Both of the two supporting brackets play a role in extruding the pipe section of its corresponding cross-section towards the central axis, so that the two edges of the pipe section gap between the two supporting brackets are accurately abutted against each other. Driven by the clamping of the four lower pressing rollers and the two upper pressing rollers, the coiled stainless steel plate is conveyed forward, so that the two edges of the pipe section gap that are "accurately abutted against each other" are welded together by the welding head, thereby enabling precise stitch welding of the coiled stainless steel plate and improving the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A three-dimensional view of the seam welding equipment for stainless steel pipes;

[0020] Figure 2 for Figure 1 A partial view of

[0021] Figure 3 A partial view of a stainless steel pipe seam welding device;

[0022] Figure 4 Another partial view of the stainless steel pipe seam welding equipment;

[0023] Figure 5 It is a three-dimensional view of the transverse arm and related structures;

[0024] Figure 6 A three-dimensional view of the support seat and related structures.

[0025] In the figure:

[0026] 1. Base; 11. Mounting seat; 12. Vertical hydraulic cylinder;

[0027] 2. Ground beam; 21. Guide plate;

[0028] 31. Sliding seat; 32. Supporting seat; 34. Traveling motor; 35. Supporting block; 351. Vertical pin hole; 352. Supporting notch; 36. Vertical latch;

[0029] 4. Support frame; 41. Top beam; 411. Lower pit; 412. Lower pressing roller; 42. Lower drive motor; 43. Column; 44. Reinforcement frame;

[0030] 5. lateral arm body; 51. upper concave pit; 52. upper pressing roller; 53. upper driving motor; 54. connecting arm; 55. rectangular connecting pin;

[0031] 61. bracket; 62. welding head;

[0032] 7. Coiled stainless steel plate; 71. Gap. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0034] See Figures 1 to 6 A stainless steel pipe suture welding device comprises a base 1, a ground beam 2 and a slide 31. Two support brackets 4 are fixedly connected to the top side of the base 1, and the support brackets 4 are provided with a top beam 41. Two lower pits 411 are provided on the top side of the top beam 41. The openings of the lower pits 411 are inclined, and lower pressing rollers 412 are rotatably provided in the lower pits 411. The two lower pressing rollers 412 are symmetrically arranged, and the rotation axis of the lower pressing rollers 412 is inclined downward from the outside to the inside.

[0035] The bottom side of the top beam 41 is fixedly connected with a lower driving motor 42, and the lower driving motor 42 is used to drive the lower pressing roller 412. The base 1 is fixedly connected with two mounting seats 11, and the mounting seats 11 are arranged in the longitudinal direction, and each mounting seat 11 matches a supporting bracket 4, and the mounting seat 11 is arranged beside the supporting bracket 4 matched therewith.

[0036] The mounting seat 11 is fixedly connected with a vertical hydraulic cylinder 12, and the top end of the piston rod of the vertical hydraulic cylinder 12 is fixedly connected with a transverse arm 5. The bottom wall of the transverse arm 5 is provided with an upper pit 51, and an upper side pressing roller 52 is rotatably provided in the upper pit 51. The transverse arm 5 is fixedly connected with an upper driving motor 53, and the upper driving motor 53 is used to drive the upper side pressing roller 52.

[0037] The sliding seat 31 can be slidably matched with the ground beam 2. The sliding seat 31 is fixedly connected with a supporting seat 32. The supporting seat 32 is provided with a supporting notch 352. The supporting notch 352 can be inserted into the rear end edge of the steel pipe.

[0038] Specifically, see Figure 5 One end of the transverse arm 5 is forked to form two connecting arms 54. The two connecting arms 54 are fixedly connected to the top end of the piston rod of the vertical hydraulic cylinder 12 through a rectangular connecting pin 55. The cross-section of the rectangular connecting pin 55 is rectangular.

[0039] Specifically, the support frame 4 includes two columns 43, a top beam 41 and a reinforcement frame 44. The top beam 41 is welded between the top ends of the two columns 43, and the reinforcement frame 44 is welded between the lower parts of the two columns 43. The reinforcement frame 44 is in a rectangular parallelepiped shape, and the bottom ends of the columns 43 and the lower sides of the reinforcement frame 44 are welded to the base 1.

[0040] Specifically, the angle between the rotation axis of the lower pressing roller 412 and the horizontal plane is 20°-40°.

[0041] Specifically, a bracket 61 is fixedly connected to the rear wall of the transverse arm body 5 located on the front side, and a welding head 62 is fixedly connected to the bracket 61. The welding head 62 is arranged vertically downward.

[0042] Specifically, as shown in Figure 5 , an installation outer edge is provided at the bottom end of the mounting seat 11. The installation outer edge is fixedly connected to the base 1 by screws. Reinforcing rib plates are provided on the side wall of the mounting seat 11, and the bottom edge of the reinforcing rib plates is located on the top wall of the installation outer edge.

[0043] Specifically, an installation outer edge is provided at the bottom end of the cylinder body of the vertical hydraulic cylinder 12. The installation outer edge is fixedly connected to the top end of the mounting seat 11 by screws.

[0044] Specifically, a guide plate 21 is fixedly connected to the top wall of the ground beam 2. The transverse two side edges of the guide plate 21 extend beyond the ground beam 2. The cross section of the sliding seat 31 is in a U shape. Two groups of traveling rollers (not shown in the figure) are arranged along the front and back on the two inner side walls of the sliding seat 31. The two groups of traveling rollers are arranged on the top sides of the transverse two side edges of the guide plate 21. A traveling motor 34 is fixedly connected to the top wall of the sliding seat 31, and the traveling motor 34 is used to drive the traveling rollers.

[0045] Specifically, a supporting block 35 is fixedly connected to the front side of the top of the supporting seat 32. A supporting notch 352 is provided on the front side of the supporting block 35. A vertical pin hole 351 is provided in the supporting block 35, and a vertical pin 36 can be inserted into the vertical pin hole 351.

[0046] The working principle of the stainless steel pipe stitching and welding equipment of the present utility model is as follows:

[0047] First, the stainless steel plate is rolled into a rolled stainless steel plate 7, and a gap 71 is left between its two edges. Then, the front end of the rolled stainless steel plate 7 sequentially passes through two supporting brackets 4, and the gap 71 is kept upward. The lower side edge (with a pin hole already drilled) of the rear end of the rolled stainless steel plate 7 is placed in the supporting notch 352, and the vertical pin 36 is inserted into the vertical pin hole 351, so as to connect the rear end of the rolled stainless steel plate 7 with the supporting notch 352.

[0048] The two lower pressing rollers 412 provided on the supporting bracket 4 and the upper pressing roller 52 provided on the transverse arm body 5 on the upper side of the supporting bracket 4 jointly squeeze the pipe wall of the rolled stainless steel plate 7 at this cross section towards the central axis, so that the two edges at the gap 71 are closely attached to each other. Moreover, the two lower pressing rollers 412 and the upper pressing roller 52 rotate at the same speed, so as to drive the rolled stainless steel plate 7 to be conveyed forward through friction. During the process of the rolled stainless steel plate 7 being conveyed forward, the traveling motor 34 synchronously drives the sliding seat 31 to move forward, so as to support the rear end of the rolled stainless steel plate 7.

[0049] The rolled stainless steel plate 7 passes through two supporting brackets 4 in sequence. Both supporting brackets 4 squeeze the pipe section of the cross section thereof toward the central axis, so that the two edges of the pipe section gap 71 between the two supporting brackets 4 are precisely pressed together. Under the tightening transmission of the four lower pressing rollers 412 and the two upper pressing rollers 52, the rolled stainless steel plate 7 is conveyed forward, so that the two edges of the pipe section gap 71 that are "precisely pressed together" are welded together by the welding head 62, so that the rolled stainless steel plate 7 can be precisely stitched and welded, thereby improving product quality.

[0050] One end of the transverse arm 5 is forked to form two connecting arms 54, which are fixedly connected to the top of the piston rod of the vertical hydraulic cylinder 12 through a rectangular connecting pin 55. The transverse arm 5 needs to withstand a large reaction force during the extrusion process. Once its related parts are damaged, the transverse arm 5 can be replaced by simply removing the rectangular connecting pin 55, making the maintenance of the equipment more convenient.

[0051] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended 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 brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A stainless steel pipe suture welding device, characterized in that: The invention comprises a base (1), a ground beam (2) and a sliding seat (31), wherein two supporting frames (4) are fixedly connected to the top side of the base (1), the supporting frames (4) are provided with a top beam (41), the top side of the top beam (41) is provided with two lower recesses (411), the openings of the lower recesses (411) are arranged obliquely, lower pressing rollers (412) are rotatably arranged in the lower recesses (411), the two lower pressing rollers (412) are symmetrically arranged, the rotation axes of the lower pressing rollers (412) are arranged obliquely downward from the outside to the inside, the bottom side of the top beam (41) is fixedly connected to a lower driving motor (42), the lower driving motor (42) is used to drive the lower pressing rollers (412), the base (1) is fixedly connected to two mounting seats (11), the mounting seats (11) are arranged in the longitudinal direction, and each mounting seat ( 11) matches with a support frame (4), the mounting seat (11) is arranged on the side of the matching support frame (4), the mounting seat (11) is fixedly connected with a vertical hydraulic cylinder (12), the top end of the piston rod of the vertical hydraulic cylinder (12) is fixedly connected with a transverse arm body (5), the bottom wall of the transverse arm body (5) is provided with an upper pit (51), an upper side clamping roller (52) is rotatably provided in the upper pit (51), the transverse arm body (5) is fixedly connected with an upper driving motor (53), the upper driving motor (53) is used to drive the upper side clamping roller (52), the sliding seat (31) and the ground beam (2) can be slidably matched, the sliding seat (31) is fixedly connected with a supporting seat (32), the supporting seat (32) is provided with a supporting notch (352), and the supporting notch (352) can be inserted into the rear end edge of the steel pipe.

2. The stainless steel pipe suture welding equipment according to claim 1 is characterized in that: One end of the transverse arm body (5) is forked to form two connecting arms (54). The two connecting arms (54) are fixedly connected to the top end of the piston rod via a rectangular connecting pin (55). The cross section of the rectangular connecting pin (55) is rectangular.

3. The stainless steel pipe suture welding equipment according to claim 1 is characterized in that: The support frame (4) comprises two columns (43), the top beam (41) and a reinforcement frame (44); the top beam (41) is welded between the top ends of the two columns (43); the reinforcement frame (44) is welded between the lower parts of the two columns (43); the reinforcement frame (44) is in the shape of a rectangular parallelepiped; the bottom ends of the columns (43) and the lower sides of the reinforcement frame (44) are both welded to the base (1).

4. The stainless steel pipe suture welding equipment according to claim 1 is characterized in that: The angle between the rotation axis of the lower pressing roller (412) and the horizontal plane is 20°-40°.

5. The stainless steel pipe suture welding equipment according to claim 1 is characterized in that: A bracket (61) is fixedly connected to the rear wall of the transverse arm body (5) located at the front side, and a welding head (62) is fixedly connected to the bracket (61), and the welding head (62) is arranged vertically downward.

6. The stainless steel pipe suture welding equipment according to claim 1 is characterized in that: The bottom end of the mounting seat (11) is provided with a mounting outer edge, the mounting outer edge is fixedly connected to the base (1) by screws, and the side wall of the mounting seat (11) is provided with a reinforcing rib plate, the bottom edge of the reinforcing rib plate is located on the top wall of the mounting outer edge.

7. The stainless steel pipe seam welding equipment according to claim 1 is characterized in that: The bottom end of the cylinder block of the vertical hydraulic cylinder (12) is provided with an installation outer edge, and the installation outer edge is fixedly connected to the top end of the installation seat (11) by screws.

8. The stainless steel pipe suture welding equipment according to claim 1 is characterized in that: The top wall of the ground beam (2) is fixedly connected with a guide plate (21). The lateral two edges of the guide plate (21) extend beyond the ground beam (2). The cross section of the sliding seat (31) is U-shaped. Two groups of traveling rollers are arranged along the front and back on the two inner side walls of the sliding seat (31). The two groups of traveling rollers are arranged on the top sides of the lateral two edges of the guide plate (21). The top wall of the sliding seat (31) is fixedly connected with a traveling motor (34), and the traveling motor (34) is used to drive the traveling rollers.

9. The stainless steel pipe suture welding equipment according to claim 8 is characterized in that: A supporting block (35) is fixedly connected to the front side of the top of the supporting seat (32). A supporting notch (352) is arranged on the front side of the supporting block (35). The supporting block (35) is provided with a vertical pin hole (351), and a vertical pin (36) can be inserted into the vertical pin hole (351).

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