CN217571470U

CN217571470U - Seaming device of stainless steel pipe welding machine

Info

Publication number: CN217571470U
Application number: CN202221542968.3U
Authority: CN
Inventors: 彭文浩
Original assignee: Foshan City Nanhai District Zaihui Stainless Steel Products Co ltd
Current assignee: Foshan City Nanhai District Zaihui Stainless Steel Products Co ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-10-14
Anticipated expiration: 2032-06-20

Abstract

The utility model relates to the technical field of machining, especially, relate to a seaming device of stainless steel tube welding machine, including a plurality of along preceding back direction interval settings be used for the first extrusion mechanism of left and right sides extrusion stainless steel band, one-to-one setting are used for the second extrusion mechanism and the welding seam guiding mechanism at last first extrusion mechanism rear of both sides extrusion stainless steel band in first extrusion mechanism front side, welding seam guiding mechanism is including the width limiting plate that is used for restricting the welding seam width, set up the width expansion board that is used for enlarging the welding seam width in width limiting plate front side and set up the arc inner supporting plate that is used for propping up the downwarping of stainless steel band at width expansion board downside. Implement the utility model discloses, make nonrust steel pipe keep the central line of welding seam to aim at welder when carrying welder, the width of welding seam is in being fit for the welded within range, and nonrust steel pipe is not collapsed, not wrong limit when carrying welder, thereby guarantees welded quality, improves the productivity effect.

Description

Seaming device of stainless steel pipe welding machine

Technical Field

The utility model relates to the technical field of machining, especially, relate to a seaming device of nonrust steel pipe welding machine.

Background

The welded stainless steel pipe is called welded pipe for short, and is made of stainless steel or stainless steel band through welding after being curled and formed by a machine set and a mould. The welded steel tube has simple production process, high production efficiency, multiple varieties and specifications and less equipment investment, but the general strength is lower than that of a seamless steel tube. With the rapid development of high-quality strip steel continuous rolling production and the progress of welding and inspection technology, the quality of welding seams is continuously improved, the variety and the specification of welded steel pipes are increasing day by day, and seamless steel pipes are replaced in more and more fields, particularly in the aspects of pipes for heat exchange equipment, decorative pipes, medium and low pressure fluid pipes and the like since the 30 s of the 20 th century.

The main quality problems in the stainless steel pipe industry come from the quality problems of welding seams, the product acceptance rate is difficult to reach more than 935 percent, welding leakage, uneven thickness of the welding seams, shrinkage and segregation of the welding seams and the like often occur on the welding seams, the adjusting process of the welding position of the welding gun of the existing welding machine is complicated and mainly adjusted manually, when the welding seams of the stainless steel pipes deviate, the welding gun cannot be aligned with the central line of the welding seams, so that the welding quality is reduced, unqualified products are easy to occur, only the outer diameter of the steel pipe is stressed during joint closing, the inner wall of the steel pipe is not supported, the steel pipe is easy to collapse into a heart shape or is staggered, the pre-welding rejection rate of the steel pipe is high, the efficiency is low, and the welding quality is difficult to ensure.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a solve the shortcoming that exists among the prior art, and the seaming device of a nonrust steel pipe welding machine that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a seam closing device of nonrust steel pipe welding machine, sets up first extrusion mechanism, the one-to-one that are used for extrudeing the stainless steel band in the left and right sides including a plurality of along front and back direction interval and sets up the second extrusion mechanism that is used for extrudeing the stainless steel band in upper and lower both sides and sets up the welding seam guiding mechanism at last first extrusion mechanism rear in first extrusion mechanism front side, welding seam guiding mechanism is including the width limiting plate that is used for restricting the welding seam width, set up the width expansion board that is used for expanding the welding seam width in width limiting plate front side and set up the arc inner support board that is used for propping up the downwarping of stainless steel band in width expansion board downside.

Preferably, the width enlarging plate is an isosceles triangle with the apex angle facing forward.

Preferably, the width limiting plate is a rectangular plate and has the same width as the length of the bottom side of the width enlarging plate.

Preferably, the thickness of the width limiting plate and the width enlarging plate is 1.1 to 1.2 times the thickness of the stainless steel strip.

Preferably, the welding seam guide mechanism further comprises a round pipe used for preventing the stainless steel strip from tilting and an installation inserting plate extending forwards from the back and used for installing the round pipe, an opening with the width being 0.9-0.95 times of the width limiting plate is formed in the upper side of the round pipe, the opening is located above the width limiting plate, and an installation groove corresponding to the installation inserting plate is formed in the lower side of the round pipe.

Preferably, a guide pipe with the inner diameter gradually reduced from front to back is arranged on the front side of the circular pipe, and the inner diameter of the communication part of the guide pipe and the circular pipe is the same as that of the circular pipe.

Preferably, the rear side of the opening is communicated with a welding opening which is wider than the opening and facilitates welding of a welding gun.

Preferably, the first squeezing mechanism comprises two vertical squeezing rollers correspondingly arranged in the left-right direction and two first connecting seats correspondingly arranged on the outer sides of the vertical squeezing rollers and used for fixedly mounting the vertical squeezing rollers.

Preferably, the second squeezing mechanism comprises two horizontal squeezing rollers which are correspondingly arranged at the front side of the vertical squeezing roller in the vertical direction and two second connecting seats which are correspondingly arranged at the left side and the right side of the horizontal squeezing rollers and are used for installing the horizontal squeezing rollers.

The utility model has the advantages that: through being equipped with width expansion board and width limiting plate for stainless steel pipe keeps the central line of welding seam to aim at welder when carrying welder, and makes the width of welding seam in being fit for the welded within range, through being equipped with convex inner supporting plate, makes stainless steel pipe not collapsed, not wrong limit when carrying welder, thereby guarantees welded quality, improves the productivity effect.

Drawings

Fig. 1 is a top view of the seaming device of the stainless steel pipe welding machine of the present invention.

Fig. 2 is a front view of the middle welding seam guide mechanism without a guide pipe.

Fig. 3 is a top view of the middle welding seam guiding mechanism of the present invention without a circular tube.

Fig. 4 is a top view of the middle tube of the present invention.

Fig. 5 is a schematic view of the installation of the first pressing mechanism of the present invention.

Fig. 6 is a schematic view of the installation of the second pressing mechanism of the present invention.

All the drawings are omitted for convenience of illustration, and parts of the frame for mounting and supporting the respective components and the electric wires and the like connecting the respective components are omitted.

In the figure, 1-a first extrusion mechanism, 11-a vertical extrusion roller, 12-a first connecting seat, 2-a second extrusion mechanism, 21-a horizontal extrusion roller, 22-a second connecting seat, 3-a welding seam guide mechanism, 31-a width limiting plate, 32-a width expanding plate, 33-an arc inner supporting plate, 34-a circular tube, 35-an installation inserting plate, 36-an opening, 37-an installation groove, 38-a guide tube and 39-a welding opening.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In this embodiment, "left" in fig. 1 is "front" in reality, "right" in fig. 1 is "rear" in reality, "front" in fig. 1 is "upper" in reality, "rear" in fig. 1 is "lower" in reality, "upper" in fig. 1 is "left" in reality, and "lower" in fig. 1 is "right" in reality.

The seaming device of the stainless steel pipe welding machine shown in the attached figures 1-6 comprises a plurality of first extrusion mechanisms 1 which are arranged at intervals along the front-back direction and used for extruding stainless steel belts at the left side and the right side, second extrusion mechanisms 2 which are arranged at the front sides of the first extrusion mechanisms 1 in a one-to-one correspondence mode and used for extruding the stainless steel belts at the upper side and the lower side, and a weld guiding mechanism 3 which is arranged at the back of the first extrusion mechanisms 1, wherein the stainless steel belts are transported from the front to the back through an external conveying belt, the stainless steel belts are synchronously extruded by the first extrusion mechanisms 1 and the second extrusion mechanisms 2 to be gradually formed into the stainless steel pipes when passing through the first extrusion mechanisms 1 and the second extrusion mechanisms 2, the weld guiding mechanism 3 guides a weld in the process of forming the stainless steel belts into the stainless steel pipes, so that the center lines of the weld are aligned with a welding gun, the weld is in a width suitable for welding, and the stainless steel belts are simultaneously supported from the inside of the stainless steel belts.

The welding seam guide mechanism 3 comprises a width limiting plate 31 for limiting the width of a welding seam, a width expanding plate 32 arranged on the front side of the width limiting plate 31 for expanding the width of the welding seam, and a circular arc inner supporting plate 33 arranged on the lower side of the width expanding plate 32 for supporting a stainless steel band and bent downwards, wherein the width expanding plate 32 can be a conical plate, a triangular plate, a circular arc plate or the like, the width expanding plate 32 is used for expanding the extruded welding seam, the width limiting plate 31 can be a rectangular plate, a cylinder or the like, the central line of the width limiting plate 31 is aligned with the central line of a welding gun, so that the central line of the welding seam is aligned with the welding gun, the width of the width limiting plate 31 is the width required by the welding seam during welding, the width limiting plate 31 is used for guiding the expanded welding seam, the circular arc inner supporting plate 33 is used for supporting the non-rust steel band which is crushed and staggered from the inside, and the circular arc inner supporting plate 33 has the outer diameter consistent with the inner diameter of the stainless steel band which is extruded.

A seaming device of nonrust steel pipe welding machine's theory of operation: the stainless steel band is transported from the front to the back by an external conveyer belt, a plurality of first extrusion mechanisms 1 and second extrusion mechanisms 2 which are horizontally arranged at intervals along the front-back direction continuously extrude the stainless steel band in four directions of up, down, left and right to form a welding seam for welding a welding mechanism, when the stainless steel band is transported to a welding seam guide mechanism 3, the arc-shaped inner supporting plate 33 supports the collapsed stainless steel band, the width expansion plate 32 expands the extruded welding seam, and simultaneously guides the welding seam, so that the central line of the welding seam is aligned with a welding gun, the width of the welding seam when the stainless steel band is transported to the width limiting plate 31 is the same as the width of the width limiting plate 31, so that the welding seam is in proper width when the stainless steel band is transported to the welding gun, and the welding is convenient.

The utility model has the advantages that: through being equipped with width expansion board 32 and width limiting plate 31 for stainless steel pipe keeps the central line of welding seam to aim at welder when carrying welder, and makes the width of welding seam in being fit for the welded within range, through being equipped with convex inner supporting plate 33, makes stainless steel pipe not collapsed, not wrong limit when carrying welder, thereby guarantees welded quality, improves the productivity effect.

In this embodiment, the width enlarging plate 32 is preferably an isosceles triangle and faces forward, and the width enlarging plate 32 is set to be an isosceles triangle with the apex angle facing forward and located at the center line of the welding seam, so that the welding seam can be guided and enlarged better, and welding is facilitated. The width limiting plate 31 is preferably a rectangular plate having the same width as the length of the bottom side of the width enlarging plate 32, and the stainless steel band can be more smoothly moved from the width enlarging plate 32 to the width limiting plate 31 by making the width limiting plate 31 a rectangular plate having the same width as the bottom plate of the width enlarging plate 32.

The preferable still including the pipe 34 that is used for preventing the stainless steel band perk and the installation picture peg 35 that is used for installing pipe 34 that extends forward from the back, the opening 36 that the width is 0.9-0.95 times of width limiting plate 31 width is seted up to the pipe upside, opening 36 is located width limiting plate 31's top, the mounting groove 37 that corresponds with installation picture peg 35 is seted up to pipe 34, is installing during pipe 34, pipe 34 inserts the installation in the mounting groove 37 through installation picture peg 35, opening 36 above pipe 34 passes and is located width limiting plate 31, width expansion board 32 and the top of convex interior fagging 33, and the stainless steel band gets into when transporting welding seam guiding mechanism 3 department pipe 34, pipe 34's effect reduces the stainless steel band and influences the possibility of welding effect in welding seam department perk when expanding and leading the stainless steel band welding seam.

The guide pipe 38 with the inner diameter gradually reduced from front to back is preferably arranged on the front side of the circular pipe 34, the inner diameter of the communication part of the guide pipe 38 and the circular pipe 34 is the same as the inner diameter of the circular pipe 34, and the guide pipe 38 is arranged, so that a stainless steel belt can conveniently enter the circular pipe 34. The rear side of the opening 36 is preferably communicated with a welding opening 39 which is wider than the opening 36 for facilitating welding by a welding gun, and the width of the welding opening 39 is wider than the opening 36 and wider than the welding gun for facilitating the welding gun to extend into the circular tube 34 and weld the welding seam of the stainless steel band.

First 1 preferred including two vertical squeeze roll 11 that correspond the setting and two correspond the first connecting seat 12 that sets up in the vertical squeeze roll 11 outside of controlling the orientation about, two correspond the setting about vertical squeeze roll 11 is used for the stainless steel strip extrusion to transporting backward in the past about in the orientation, about two on the orientation distance between the vertical squeeze roll 11 reduces backward gradually in the past, the side of vertical squeeze roll 11 is equipped with extrusion arc, the multiunit the diameter of the extrusion arc of vertical squeeze roll 11 reduces backward gradually in the past for the stainless steel strip is crooked and forms the welding seam, first connecting seat 12 is fixed in the outside of vertical squeeze roll 11 and is used for installing vertical squeeze roll 11.

The second squeezing mechanism 2 is preferably including two horizontal squeezing rollers 21 that correspond the setting in vertical squeezing roller 11 front side from top to bottom and two second connecting seats 22 that correspond the setting and be used for installing horizontal squeezing rollers 21 in the horizontal squeezing rollers 21 left and right sides, two correspond the setting in the up and down direction horizontal squeezing rollers 21 are used for in the up and down direction to the stainless steel pipe area extrusion of transporting backward in the past, two in the up and down direction distance between the horizontal squeezing rollers 21 reduces from the past backward gradually, and the internal diameter reduces gradually, the side of horizontal squeezing rollers 21 is equipped with the extrusion cambered surface, the multiunit the diameter of the extrusion cambered surface of horizontal squeezing rollers 21 reduces from the past backward gradually for the stainless steel belt is crooked and form the welding seam, two second connecting seats 22 are fixed in the left and right sides of horizontal squeezing rollers 21 and are used for installing horizontal squeezing rollers 21.

The above-mentioned embodiments are only preferred embodiments of the present invention, all without departing from the principles and spirit of the present invention, it is intended that the present invention shall be changed, modified, replaced and deformed, all falling within the protection scope of the present invention, and the scope of the present invention shall be defined by the claims and their equivalents.

Claims

1. The utility model provides a seam closing device of nonrust steel pipe welding machine which characterized in that: including a plurality of along preceding rear direction interval set up be used for extrudeing first extrusion mechanism (1) of stainless steel band in the left and right sides, one-to-one sets up second extrusion mechanism (2) and welding seam guiding mechanism (3) of setting in last first extrusion mechanism (1) rear that are used for extrudeing stainless steel band in first extrusion mechanism (1) front side about, welding seam guiding mechanism (3) are used for expanding width of weld (32) and setting up in width expansion plate (32) downside and are used for propping up convex interior fagging (33) of downwarping of stainless steel band including width limiting plate (31) that are used for limiting the welding seam width, setting in width limiting plate (31) front side.

2. The seaming device of the stainless steel tube welding machine according to claim 1, characterized in that: the width enlarging board (32) is an isosceles triangle and the vertex angle is forward.

3. The seaming device of the stainless steel tube welding machine according to claim 2, characterized in that: the width limiting plate (31) is a rectangular plate, and the width of the rectangular plate is the same as the length of the bottom edge of the width enlarging plate (32).

4. The seaming device of the stainless steel tube welding machine according to claim 3, characterized in that: the thickness of the width limiting plate (31) and the width expanding plate (32) is 1.1-1.2 times of the thickness of the stainless steel band.

5. The seaming device of the stainless steel tube welding machine according to claim 1, characterized in that: welding seam guiding mechanism is still including being used for preventing pipe (34) of stainless steel band perk and follow installation picture peg (35) that the preceding extension is used for installing pipe (34) backward, 0.9-0.95 times opening (36) of width for width limiting plate (31) width are seted up to the pipe upside, opening (36) are located the top of width limiting plate (31), mounting groove (37) that correspond with installation picture peg (35) are seted up to pipe (34) downside.

6. The seaming device of a stainless steel tube welding machine according to claim 5, characterized in that: the inner diameter of the communicating part of the guide pipe (38) and the round pipe (34) is the same as the inner diameter of the round pipe (34).

7. The seaming device of a stainless steel tube welding machine according to claim 5, characterized in that: the rear side of the opening (36) is communicated with a welding opening (39) which is wider than the opening (36) and facilitates welding of a welding gun.

8. The seaming device of the stainless steel tube welding machine according to claim 1, characterized in that: first extrusion mechanism (1) is including two vertical squeeze roll (11) that correspond the setting in the left and right directions and two first connecting seat (12) that correspond the setting and be used for installing vertical squeeze roll (11) outside vertical squeeze roll (11).

9. The seaming device of a stainless steel tube welding machine according to claim 1, characterized in that: second extrusion mechanism (2) are including two horizontal squeeze roll (21) that correspond the setting in vertical squeeze roll (11) front side and two second connecting seats (22) that correspond the setting and be used for installing horizontal squeeze roll (21) in horizontal squeeze roll (21) left and right sides in upper and lower direction.