CN212977074U - Welding rack for welded pipe unit - Google Patents

Abstract

The utility model is used for welded tube unit's welding frame relates to longitudinal welded pipe welding frame technical field, especially relates to the argon arc that is applicable to the nonrust steel pipe of major diameter and welds, the manufacturing production that plasma arc welded. The utility model has two frames which are symmetrically manufactured and are used in series face to face, and the frames are arranged on the base through the positioning pins of the frames and are fixed by the locking devices; the rack comprises three sliding chutes with 120-degree intervals; the roller seat A is provided with a roller shaft and a roller and then is arranged in a chute at the bottom together with a roller position adjusting device B and a displacement sensor A; the roller seat B is provided with a roller shaft and a roller and then arranged in a sliding groove at one side together with the roller position adjusting device C and the displacement sensor B; the misalignment adjusting device is arranged on a roller seat C, and the roller seat C is provided with a roller shaft and a roller which are arranged on the sliding seat; the slide seat roller position adjusting device A and the displacement sensor C are arranged in the sliding groove on the other side together; the technical scheme of the utility model it is big to have solved welding frame interval size, and the misalignment adjustment is inconvenient, and it is inconvenient to change the specification, problem that adjustment roller position precision is not high.

Description

Welding rack for welded pipe unit

Technical Field

The utility model is used for welded tube unit's welding frame relates to longitudinal welded pipe welding frame technical field, especially relates to the argon arc that is applicable to the nonrust steel pipe of major diameter and welds, the manufacturing production that plasma arc welded.

Background

At present, in the production of stainless steel pipes in the steel pipe industry, two to four two-roller welding frames or three-roller welding frames are used in series to perform steel pipe straight seam welding according to different pipe diameters. The three-roller welding machine frame for the large-diameter welding pipe has large space size along the rolling line direction, influences the welding stability, has inconvenient misalignment adjustment, is inconvenient to replace rollers during specification changing, and has low precision of adjusting the roller position.

In view of the problems in the prior art, a novel welding rack for a welded pipe unit is researched and designed, so that the problem in the prior art is very necessary to be solved.

Disclosure of Invention

The utility model discloses to the proposition of above problem, and research design a new three-roller welding frame for it is big to solve current welding frame interval size, and the misalignment adjustment is inconvenient, and it is inconvenient to change the specification, the shortcoming that adjusting roll position precision is not high.

The utility model discloses a technical means as follows:

a welding stand for a welded pipe assembly comprising: the device comprises a base, a locking device, a frame, a misalignment adjusting device, a roller position adjusting device A, a frame positioning pin, a roller position adjusting device B, a displacement sensor A, a roller seat A, a roller, a displacement sensor B, a roller seat B, a roller shaft, a roller position adjusting device C, a sliding seat, a roller seat C and a displacement sensor C;

furthermore, the two racks are symmetrically manufactured, are used in a face-to-face serial connection mode, are arranged on the base through the rack positioning pin and are fixed through the locking device; the distance between the two groups of frame rollers is reduced as much as possible;

furthermore, three sliding chutes for radial adjustment of the rollers are processed on the frame, the three sliding chutes are arranged at intervals of 120 degrees to form a circle, and each roller is driven by a speed reduction motor and a screw rod lifter to move to a required position along the radial direction of the circular tube;

further, the roller seat A, a roller shaft and a roller are arranged on the roller seat A, and then the roller seat A, a roller position adjusting device B and a displacement sensor A are arranged in a chute at the bottom, and the roller position adjusting device B drives the roller to move in the radial direction; the displacement sensor A is used for sensing the position of the roller;

furthermore, the arrangement of the three rollers is that one roller is arranged right below the pipe, the other two rollers and the lower roller are arranged on two sides at an included angle of 120 degrees, and a space is reserved right above the pipe for arranging a welding gun to weld the steel pipe.

Furthermore, the welding frame structure is that the frame is a steel plate welding part, the roller frame adjusting guide groove is arranged on a main vertical plate of the frame and positioned inside the frame, and the roller position adjusting mechanism is fixed on the frame.

Furthermore, the rack sliding groove is positioned in the rack, so that the equipment size in the rolling line direction is reduced, the distance between the two racks is reduced, the rebound after the steel coil is formed is reduced, and the forming stability is improved;

further, the roller seat B is provided with a roller shaft and a roller and then arranged in a sliding chute at one side together with a roller position adjusting device C and a displacement sensor B, and the roller position adjusting device C drives the roller to move in the radial direction; the displacement sensor B is used for sensing the position of the roller;

further, the misalignment adjusting device is arranged on a roller seat C, the roller seat C is provided with a roller shaft and a roller which are arranged on the sliding seat; the slide seat roller position adjusting device A and the displacement sensor C are arranged in the sliding groove on the other side together; the roller on the roller seat C can move radially under the drive of the roller position adjusting device A to adjust the specification and the outer diameter deviation of the steel pipe; the displacement sensor C is used for sensing the position of the roller;

furthermore, a mechanism for driving the roller to move along the direction of the roller shaft is added on the upper roller on the operating side, and an operating point is led out of the rack, so that the steel pipe misalignment during operation and adjustment production is facilitated;

furthermore, the roller position is adjusted by adding a displacement sensor to detect the roller position in real time, the roller position detected by the displacement sensor is detected by a common scale, an incremental encoder is used for detecting, an absolute encoder is used for detecting and eliminating visual errors, and the gap error of a transmission mechanism is more accurate and visual.

Furthermore, the locking device comprises a locking rod, a locking seat, a guide key and a hydraulic cylinder;

furthermore, a locking rod channel forming an included angle of 20 degrees with the horizontal plane is processed on the locking seat; the locking seats are fixed on the base through bolts and positioned on two sides of the rack;

furthermore, the locking rod is connected with a cylinder rod of the hydraulic cylinder through a guide key; the locking rod is arranged in the locking rod channel, and the hydraulic cylinder is fixed on the locking seat;

furthermore, a bayonet is arranged at the front end of the locking rod, and the rack is clamped through the bayonet;

furthermore, after the hydraulic rod is installed in place on the frame through a frame positioning pin, the actuating cylinder rod extends out, and a bayonet at the front end of the locking rod clamps the frame for positioning and locking; after the hydraulic cylinder action cylinder rod retracts, a space is made in the vertical direction, and the rack can be hung and replaced;

furthermore, the rack is fixed on the base by the hydraulic locking device, and the positioning is performed by the positioning pin, so that the rack is conveniently hung outside a line to replace the roller or maintain the roller during specification replacement or maintenance. The machine set is provided with a spare machine frame, and the adjusted spare machine frame can be hung outside the line for production after the on-line machine frame is hung outside the line.

Further, the misalignment adjusting device includes: the screw rod lifting machine comprises a screw rod lifting machine base, a screw rod lifter, an adjusting shaft A, a bearing seat, an adjusting shaft B and a spiral bevel gear steering box;

furthermore, the adjusting shaft A is connected with the adjusting shaft B and is arranged at the lower part of the sliding seat through a bearing seat;

furthermore, the spiral bevel gear steering box is fixed at the tail part of the sliding seat and is connected with the adjusting shaft B;

furthermore, the screw rod lifter is arranged at the lower part of the sliding seat through a screw rod lifter base;

further, the adjusting shaft A is connected with the screw lifter;

furthermore, the spiral bevel gear steering box drives the screw rod lifter to push the roller to move in the sliding seat along the direction of the roller shaft through the adjusting shaft B and the adjusting shaft A so as to change the position of the edge of the steel pipe and adjust the misalignment, and a position display is installed at the manual operation end of the spiral bevel gear steering box to display the position adjustment amount of the roller.

Furthermore, the spiral bevel gear steering box, the adjusting shaft A and the adjusting shaft B are used for transferring adjusting points in the rack to the position convenient for operation on the operation side; the adjusting shaft A is of an external spline shaft structure, the adjusting shaft B is of an internal spline shaft structure, the adjusting shaft A and the adjusting shaft B are combined into a whole through an internal spline and an external spline, and the adjusting shaft A and the adjusting shaft B can stretch out and draw back when adjusting specifications, so that the requirements of transmission and position adjustment are met.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model provides a welding frame for welded tube unit, the novel welding frame of welded tube unit, compact structure, along the direction of rolling line size is little, the frame width is equivalent to the roller external diameter that is used for rolling the biggest steel pipe, furthest has reduced the frame interval, has improved the shaping stability;

2. the utility model provides a welding frame for welded tube unit, when changing the specification, hang the frame wholly to the off-line and change, the installation is dismantled conveniently, and the location is accurate;

3. the hydraulic locking device of the welding frame for the welded pipe unit provided by the utility model has the advantages of reliable locking, convenient operation and simple manufacture;

4. the utility model provides a welding frame for welded tube unit, which guides the operating point of the adjusting misalignment mechanism to the outside of the frame convenient for operation, can be adjusted at any time and is convenient for adjustment;

5. the utility model provides a welding frame for welded tube unit, the roll position adjustment has used displacement sensor to detect the roll position, has reduced systematic error, and the adjustment is accurate.

To sum up, use the technical scheme of the utility model the frame interval size among the prior art of having solved is big, influences the welding stability, and the misalignment adjustment is inconvenient, and it is inconvenient to change the roll when trading the specification, and the not high scheduling problem of adjustment roller position precision.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a partial view of the misalignment adjusting device;

fig. 4 is a partial view of the locking device.

In the figure: 1. the device comprises a base, 2, a locking device, 3, a frame, 4, a misalignment adjusting device, 5, a roller position adjusting device A, 6, a frame positioning pin, 7, a roller position adjusting device B, 8, a displacement sensor A, 9, a roller seat A, 10, a roller, 11, a displacement sensor B, 12, a roller seat B, 13, a roller shaft, 14, a roller position adjusting device C, 15, a sliding seat, 16, a roller seat C, 17, a displacement sensor C, 18, a screw lifting machine seat, 19, a screw lifting machine, 20, an adjusting shaft A, 21, a bearing seat, 22, an adjusting shaft B, 23, a spiral bevel gear steering box, 24, a locking rod, 25, a locking seat, 26, a guide key, 27 and a hydraulic cylinder.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1 and 2, the utility model provides a welding frame for welded tube unit includes: the device comprises a base 1, a locking device 2, a frame 3, an edge staggering adjusting device 4, a roller position adjusting device A5, a frame positioning pin 6, a roller position adjusting device B7, a displacement sensor A8, a roller seat A9, a roller 10, a displacement sensor B11, a roller seat B12, a roller shaft 13, a roller position adjusting device C14, a sliding seat 15, a roller seat C16 and a displacement sensor C17;

the two racks 3 are symmetrically manufactured, are used in a face-to-face serial connection mode, are arranged on the base 1 through rack positioning pins 6 and are fixed through the locking device 2; the distance between the two groups of frame rollers is reduced as much as possible;

three sliding chutes for radial adjustment of the roller are processed on the frame 3, the three sliding chutes are arranged at intervals of 120 degrees,

the rack sliding grooves are positioned in the racks, so that the equipment size in the rolling line direction is reduced, the distance between the two racks is reduced, the rebound of the formed steel coil is reduced, and the forming stability is improved;

the roller seat A9 is provided with a roller shaft 13 and a roller 10, and then the roller seat A7 and a displacement sensor A8 are arranged in a sliding chute at the bottom, and the roller seat B7 drives the roller 10 to move in the radial direction; the displacement sensor A8 is used for sensing the position of the roller 10;

the roller seat B12 is provided with a roller shaft 13 and a roller 10, and then is arranged in a sliding chute at one side together with a roller position adjusting device C14 and a displacement sensor B11, and the roller position adjusting device C14 drives the roller 10 to move in the radial direction; the displacement sensor B11 is used for sensing the position of the roller 10;

the misalignment adjusting device 4 is arranged on a roller seat C16, and a roller seat C16 is provided with a roller shaft 13 and a roller 10 which are arranged on a sliding seat 15; the roller position adjusting device A5 of the sliding seat 15 and the displacement sensor C17 are arranged in the sliding groove at the other side together; the roller 10 on the roller seat C16 can move radially under the drive of the roller position adjusting device A5 to adjust the specification and the outer diameter deviation of the steel pipe; the displacement sensor C17 is used to sense the position of the roll 10.

As shown in fig. 4, the locking device 2 includes a locking lever 24, a locking seat 25, a guide key 26, and a hydraulic cylinder 27;

a locking rod channel forming an included angle of 20 degrees with the horizontal plane is processed on the locking seat 25; the locking seats 25 are fixed on the base 1 through bolts and positioned at two sides of the frame 3;

the locking rod 24 is connected with a cylinder rod of a hydraulic cylinder 27 through a guide key 26; the locking rod 24 is arranged in the locking rod channel, and the hydraulic cylinder 27 is fixed on the locking seat 25;

a bayonet is arranged at the front end of the locking rod 24, and the rack 3 is clamped through the bayonet;

after the frame 3 is installed in place through the frame positioning pin 6, the hydraulic cylinder 27 moves out of the cylinder rod, and the bayonet at the front end of the locking rod 24 clamps the frame 3 for positioning and locking; after the hydraulic cylinder 27 acts on the cylinder rod to retract, a space is made in the vertical direction, and the machine frame 3 can be hung and replaced.

As shown in fig. 3, the misalignment adjusting device 4 includes: the screw rod lifting machine base 18, the screw rod lifting machine 19, the adjusting shaft A20, the bearing seat 21, the adjusting shaft B22 and the spiral bevel gear steering box 23;

the adjusting shaft A20 is connected with the adjusting shaft B22 and is arranged at the lower part of the sliding seat 15 through a bearing seat 21;

the spiral bevel gear steering box 23 is fixed at the tail part of the sliding seat 15 and is connected with an adjusting shaft B22;

the screw lifter 19 is arranged at the lower part of the sliding seat 15 through a screw lifter base 18;

the adjusting shaft B220 is connected with the screw rod lifter 19;

the spiral bevel gear steering box 23 drives the screw lifter 19 to push the roller 10 to move in the sliding seat along the direction of the roller shaft through the adjusting shaft B22 and the adjusting shaft A20 so as to change the position of the edge of the steel pipe and adjust the misalignment, and a position display is arranged at the manual operation end of the spiral bevel gear steering box 23 and displays the position adjustment amount of the roller.

As shown in fig. 3, the spiral bevel gear steering box 23, the adjusting shaft a20, and the adjusting shaft B22 are positions for shifting the adjusting point in the housing 3 to the operating side for easy operation; the adjusting shaft A20 is an external spline shaft structure, the adjusting shaft B22 is an internal spline shaft structure, the adjusting shaft A20 and the adjusting shaft B22 are combined into a whole through an internal spline shaft and an external spline shaft, the two shafts can stretch when the specification is adjusted, and the requirements of transmission and position adjustment are met.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (4)

1. A welding frame for a tube welding machine, comprising: the roller position adjusting device comprises a base (1), a locking device (2), a rack (3), a misalignment adjusting device (4), a roller position adjusting device A (5), a rack positioning pin (6), a roller position adjusting device B (7), a displacement sensor A (8), a roller seat A (9), a roller (10), a displacement sensor B (11), a roller seat B (12), a roller shaft (13), a roller position adjusting device C (14), a sliding seat (15), a roller seat C (16) and a displacement sensor C (17);

the two racks (3) are symmetrically manufactured, are used in a face-to-face serial connection mode, are arranged on the base (1) through rack positioning pins (6) and are fixed through the locking device (2); the distance between the two groups of frame rollers is reduced as much as possible;

three sliding chutes for radial adjustment of the roller are processed on the frame (3), the three sliding chutes are arranged at intervals of 120 degrees,

the roller seat A (9) is provided with a roller shaft (13) and a roller (10) and then is arranged in a chute at the bottom together with a roller position adjusting device B (7) and a displacement sensor A (8), and the roller position adjusting device B (7) drives the roller (10) to move in the radial direction; the displacement sensor A (8) is used for sensing the position of the roller (10);

the roller seat B (12) is provided with a roller shaft (13) and a roller (10) and then arranged in a sliding groove on one side together with a roller position adjusting device C (14) and a displacement sensor B (11), and the roller position adjusting device C (14) drives the roller (10) to move in the radial direction; the displacement sensor B (11) is used for sensing the position of the roller (10);

the misalignment adjusting device (4) is arranged on a roller seat C (16), the roller seat C (16) is provided with a roller shaft (13) and a roller (10) which are arranged on a sliding seat (15); the roller position adjusting device A (5) of the sliding seat (15) and the displacement sensor C (17) are arranged in a sliding groove on the other side together; the roller (10) on the roller seat C (16) can move radially under the drive of the roller position adjusting device A (5) to adjust the specification and the outer diameter deviation of the steel pipe; the displacement sensor C (17) is used for sensing the position of the roller (10).

2. Welding frame for tube welding machines according to claim 1, characterized in that said locking device (2) comprises a locking lever (24), a locking seat (25), a guide key (26) and a hydraulic cylinder (27);

a locking rod channel forming an included angle of 20 degrees with the horizontal plane is processed on the locking seat (25); the locking seats (25) are fixed on the base (1) through bolts and are positioned on two sides of the rack (3);

the locking rod (24) is connected with a cylinder rod of a hydraulic cylinder (27) through a guide key (26); the locking rod (24) is arranged in the locking rod channel, and the hydraulic cylinder (27) is fixed on the locking seat (25);

a bayonet is arranged at the front end of the locking rod (24), and the rack (3) is clamped through the bayonet;

the hydraulic cylinder (27) is installed in place on the rack (3) through the rack positioning pin (6), then the cylinder rod extends out, and a bayonet at the front end of the locking rod (24) clamps the rack (3) for positioning and locking; after the hydraulic cylinder (27) acts the cylinder rod to retract, a space is made in the vertical direction, and the rack (3) can be hung and replaced.

3. Welding stand for tube welding units according to claim 1, characterized in that said misalignment adjusting device (4) comprises: the device comprises a screw rod lifting machine base (18), a screw rod lifting machine (19), an adjusting shaft A (20), a bearing seat (21), an adjusting shaft B (22) and a spiral bevel gear steering box (23);

the adjusting shaft A (20) is connected with the adjusting shaft B (22) and is arranged at the lower part of the sliding seat (15) through a bearing seat (21);

the spiral bevel gear steering box (23) is fixed at the tail part of the sliding seat (15) and is connected with the adjusting shaft B (22);

the screw lifter (19) is arranged at the lower part of the sliding seat (15) through a screw lifter base (18);

the adjusting shaft A (20) is connected with the screw rod lifter (19);

the spiral bevel gear steering box (23) drives the screw lifter (19) to push the roller (10) to move in the sliding seat along the direction of the roller shaft through the adjusting shaft B (22) and the adjusting shaft A (20) so as to change the position of the edge of the steel pipe and adjust the misalignment, and a position display is mounted at the manual operation end of the spiral bevel gear steering box (23) to display the position adjustment amount of the roller.

4. Welding frame for a tube welding unit according to claim 3, characterized in that the helical bevel gear steering box (23), the adjustment axis A (20) and the adjustment axis B (22) are used to transfer the adjustment point in the frame (3) to a position on the operating side for easy operation; the adjusting shaft A (20) is of an external spline shaft structure, the adjusting shaft B (22) is of an internal spline shaft structure, the adjusting shaft A and the adjusting shaft B are combined into a whole through an internal spline and an external spline, the two shafts can stretch when the specification is adjusted, and the requirements of transmission and position adjustment are met.

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