CN113977158B

CN113977158B - Auxiliary device for welding small included angle position of shielding surface of pipe body

Info

Publication number: CN113977158B
Application number: CN202111358198.7A
Authority: CN
Inventors: 苑祖嘉; 胡晓珍
Original assignee: Zhejiang Ocean University ZJOU
Current assignee: Zhejiang Ocean University ZJOU
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2023-04-28
Anticipated expiration: 2041-11-17
Also published as: CN113977158A

Abstract

The invention discloses an auxiliary device for welding a small included angle position of a shielding surface of a pipe body, and relates to the technical field of auxiliary devices for welding. The invention comprises two adjustable steel wire rope guide rails, and an adjustable fixing bracket which is in sliding connection with the adjustable steel wire rope guide rails is arranged between the two adjustable steel wire rope guide rails; the welding gun limiting structure is fixed in the middle of the top of the adjustable fixing support, and welding protection plates symmetrically arranged relative to the welding gun limiting structure are fixed on the adjustable fixing support through bolts. According to the invention, through the combined use of the adjustable steel wire rope guide rail, the adjustable fixing support and the welding gun limiting structure, when a welding seam of a pipe fitting is in a small space or is shielded by a shielding object and a welding dead angle which a welding worker cannot enter occurs, the welding gun is stably conveyed to a welding position under the condition that the worker does not enter, and can be adjusted as required during welding, so that the problem of the welding dead angle is solved, and the quality of the welding seam at a welding unfavorable position is ensured.

Description

Auxiliary device for welding small included angle position of shielding surface of pipe body

Technical Field

The invention belongs to the technical field of welding auxiliary devices, and particularly relates to an auxiliary device for welding a small included angle position of a shielding surface of a pipe body.

Background

Welding, also known as fusion welding, is a process and technique for joining metals or other thermoplastic materials, such as plastics, by means of heat, high temperature or high pressure. The energy sources of modern welding are numerous and include gas flames, electric arcs, lasers, electron beams, friction and ultrasound. In addition to use in factories, welding can also be performed in a variety of environments, such as in the field, underwater, and in space. Wherever welding may present a hazard to the operator, appropriate safeguards must be taken when welding. The possible injuries to the human body caused by welding include burn, electric shock, vision damage, inhalation of toxic gas, excessive ultraviolet irradiation and the like.

In the welding process, some pipe fittings are usually welded, because the welding of the pipe fittings is carried out on a circumferential surface, when a worker stands at a position, the welding is usually carried out on one surface which is not seen in the welding process and is greatly influenced by the volume of the pipe fittings, especially for the welding of pipe fittings with larger diameters, the worker needs to move around the pipe fitting welding process in the welding process; for welding large pipe fittings in a large space, as workers have enough moving space and no immovable welding dead angle, the welding is relatively easy, and the welding quality is good; however, for some pipe fittings which are positioned at special positions and cannot be moved due to fixed positions, such as a wall included angle, welding personnel cannot enter enough welding space or cannot enter the pipe fitting at all, the pipe fitting gap at the dead angle position is unfavorable for the operation of the welding personnel, welding is more forceful, welding quality is not easy to control, the distance between the welding position and the pipe fitting is relatively short when the space is relatively small, and high-temperature sputtered matters generated in the welding process increase the risk of damaging the body of the worker.

Disclosure of Invention

The invention aims to provide an auxiliary device for welding a small included angle position of a shielding surface of a pipe body, which solves the problems in the background technology.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to an auxiliary device for welding a small included angle position of a shielding surface of a pipe body, which comprises two adjustable steel wire rope guide rails, wherein an adjustable fixed bracket which is in sliding connection with the adjustable steel wire rope guide rails is arranged between the two adjustable steel wire rope guide rails; the welding gun limiting structure is fixed in the middle of the top of the adjustable fixing support, and welding protection plates symmetrically arranged about the welding gun limiting structure are fixed on the adjustable fixing support through bolts;

the welding gun limiting structure comprises an inner threaded sleeve fixedly connected with the adjustable fixing support, and an outer threaded sleeve coaxial with the inner threaded sleeve is connected with the inner threaded sleeve in a threaded manner; a spring is fixed in the external thread sleeve, and one end of the spring is fixed with a pressing telescopic rod which penetrates through the external thread sleeve and is coaxial with the external thread sleeve; a rotary seat is fixed at the top end of the pressing telescopic rod, and a rotary table which is rotationally connected with the rotary seat is sleeved on the rotary seat; the rotary table is characterized in that two clamping ear plates are fixed on the end face of the top of the rotary table, two inner thread rotating sleeves connected with the clamping ear plates in a rotating mode are arranged on the clamping ear plates in a penetrating mode, an outer threaded rod coaxial with the inner thread rotating sleeves is connected to the inner thread rotating sleeves in a threaded mode, a clamping disc is fixed at one end, located between the two clamping ear plates, of the outer threaded rod, and an adjusting wheel is fixed at one end, away from the clamping disc, of the outer threaded rod.

Further, the welding protection plate comprises a connecting seat fixedly connected with the adjustable fixing support through a bolt, a fixed sliding block is fixed on one surface of the connecting seat through a bolt, a main baffle is clamped on the fixed sliding block, and two unfolding plates are rotatably connected on one surface of the main baffle; a clamping groove matched with the fixed sliding block is formed in the bottom of one surface of the main baffle.

Further, the adjustable steel wire rope guide rail comprises a steel wire rope body, and a connecting sleeve is fixed at one end of the steel wire rope body; the connecting sleeve comprises two fixed rings which are fixedly connected, and the diameter of the inner holes of the two fixed rings is the same as the outer diameter of the cross section of the steel wire rope body; one of the fixing ring outer circle side surface fixedly connected with the steel wire rope body and the other fixing ring outer circle bottom end are respectively fixed with a fixing screw penetrating through the fixing ring and extending into the fixing ring.

Further, adjustable fixed bolster includes square sleeve pipe, square sleeve pipe both ends all sliding connection has the expansion plate, the expansion plate is kept away from square sleeve pipe's one end and is had through bolt fastening and wire rope body complex cutting ferrule.

Further, the square sleeve is provided with a mounting hole limiting hole, the expansion plate is provided with a through hole matched with the mounting hole limiting hole, and a mounting sleeve matched with the internal thread sleeve is fixed in the middle of the outer surface of the square sleeve.

Further, the top of the outer circular surface of the internal thread sleeve and the top of the outer circular surface of the external thread sleeve outside the internal thread sleeve are penetrated by fastening bolts.

Further, a baffle matched with the inner cavity of the external threaded sleeve is fixed at one end of the pressing telescopic rod, which is positioned in the external threaded sleeve, and a limit strip is fixed on the outer circular surface of the pressing telescopic rod along the axis; the guide groove matched with the limit strip is formed in the top end face of the external thread sleeve, a fixing sleeve matched with the external thread sleeve is fixed at the bottom of the swivel base, and a fixing groove matched with the limit strip is formed in the inner wall of the fixing sleeve.

The invention has the following beneficial effects:

1. according to the invention, through the use of the welding gun limiting structure, the welding gun for welding the welding seam can be effectively clamped, the supporting force is provided for a worker to hold the welding gun by hand, the labor intensity of the worker to take and lift the welding gun for a long time by relying on arms, the clamped welding gun can move up and down when receiving external acting force, can rotate in a small range in a swinging way, and can adjust the pitching angle of the welding gun in cooperation with the advancing of the welding seam during sealing during welding, so that the quality of the welding seam during welding is ensured.

2. According to the invention, through the combined use of the adjustable steel wire rope guide rail, the adjustable fixing support and the welding gun limiting structure, when a welding seam of a pipe fitting is in a small space or is shielded by a shielding object and a welding dead angle which a welding worker cannot enter occurs, the welding gun is stably conveyed to a welding position under the condition that the worker does not enter, and can be adjusted as required during welding, so that the problem of the welding dead angle is solved, and the quality of the welding seam at a welding unfavorable position is ensured.

3. The welding protection plate can be used for adjusting the position according to the use environment, and can be used for selecting whether to be unfolded or not, so that high-temperature sputtering objects during welding can be effectively shielded, the harm of welding work to human bodies is reduced, and particularly, powerful safety protection is provided when the welding protection plate is positioned at a back welding station.

Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

FIG. 2 is a schematic cross-sectional view of the structure at A-A in FIG. 1;

FIG. 3 is a schematic structural view of an auxiliary device for welding a small included angle position of a shielding surface of a pipe body;

FIG. 4 is a schematic view of the structure of the upper right view of FIG. 1;

FIG. 5 is a schematic structural view of a welding gun limiting structure;

FIG. 6 is a schematic cross-sectional view of the structure at B-B in FIG. 5;

FIG. 7 is a schematic view of the structure of the upper right view of FIG. 5;

FIG. 8 is a schematic structural view of an adjustable anchor bracket;

fig. 9 is a schematic structural view of a welding shield;

FIG. 10 is a schematic view of the bottom view of FIG. 9;

FIG. 11 is a schematic view of the structure of an adjustable wire rope guide;

fig. 12 is a schematic structural view of the connecting sleeve.

In the drawings, the list of components represented by the various numbers is as follows:

the welding fixture comprises a 1-adjustable steel wire rope guide rail, a 2-adjustable fixing support, a 3-welding gun limiting structure, a 4-welding protection plate, a 101-steel wire rope body, a 102-connecting sleeve, a 1021-fixing ring, 1022-fixing screws, a 201-square sleeve, a 202-telescopic plate, a 203-clamping sleeve, a 204-mounting hole limiting hole, a 205-through hole, a 206-mounting sleeve, a 301-internal thread sleeve, a 302-external thread sleeve, a 303-spring, a 304-pressing telescopic rod, a 305-swivel seat, a 306-swivel plate, a 307-clamping lug plate, a 308-internal thread swivel sleeve, a 309-external thread rod, a 310-clamping plate, a 311-adjusting wheel, 312-fastening bolts, 313-baffle plates, 314-limiting bars, a 315-fixing sleeve, a 401-connecting seat, a 402-fixing slide block, a 403-main baffle plate, a 404-unfolding plate and a 405-clamping groove.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-12, the invention discloses an auxiliary device for welding a small included angle position of a shielding surface of a pipe body, which comprises two adjustable steel wire rope guide rails 1, wherein an adjustable fixed bracket 2 which is in sliding connection with the adjustable steel wire rope guide rails 1 is arranged between the two adjustable steel wire rope guide rails 1; a welding gun limiting structure 3 is fixed in the middle position of the top of the adjustable fixed support 2, and welding protection plates 4 symmetrically arranged relative to the welding gun limiting structure 3 are fixed on the adjustable fixed support 2 through bolts; form holistic auxiliary welding structure, structure size is not fixed when using, can adjust according to the position and the structure of welding seam, increases this welding auxiliary device's application scope.

The welding gun limiting structure 3 comprises an inner threaded sleeve 301 fixedly connected with the adjustable fixing support 2, and an outer threaded sleeve 302 coaxial with the inner threaded sleeve 301 is connected inside the inner threaded sleeve 301 in a threaded manner; the top of the outer circular surface of the inner threaded sleeve 301 and the top of the outer circular surface of the outer threaded sleeve 302 positioned outside the inner threaded sleeve 301 are penetrated by fastening bolts 312; a spring 303 is fixed inside the external thread sleeve 302, and one end of the spring 303 is fixed with a pressing telescopic rod 304 which penetrates through the external thread sleeve 302 and is coaxial with the external thread sleeve 302; one end of the pressing telescopic rod 304, which is positioned in the outer threaded sleeve 302, is fixed with a baffle 313 matched with the inner cavity of the outer threaded sleeve 302, and the outer circular surface of the pressing telescopic rod 304 is fixed with a limit bar 314 along the axis; the top end surface of the external thread sleeve 302 is provided with a guide groove matched with the limit bar 314, the bottom of the swivel base 305 is fixed with a fixed sleeve 315 matched with the external thread sleeve 302, and the inner wall of the fixed sleeve 315 is provided with a fixed groove matched with the limit bar 314; a rotary seat 305 is fixed at the top end of the push telescopic rod 304, and a rotary table 306 which is rotationally connected with the rotary seat 305 is sleeved on the rotary seat 305; two clamping ear plates 307 are fixed on the top end face of the turntable 306, an internal thread rotating sleeve 308 which is rotationally connected with the clamping ear plates 307 is penetrated through the two clamping ear plates 307, an external threaded rod 309 which is coaxial with the internal thread rotating sleeve 308 is connected with the internal thread rotating sleeve 308 in a threaded manner, a clamping disc 310 is fixed at one end of the external threaded rod 309, which is positioned between the two clamping ear plates 307, and an adjusting wheel 311 is fixed at one end of the external threaded rod 309, which is far away from the clamping disc 310.

The welding gun limiting structure 3 for welding can clamp the welding gun when in use, does not limit the small-amplitude movement of the welding gun position during welding, clamps the welding gun to reduce the labor intensity of workers when holding the welding gun, avoids the problem of poor welding quality of welding seams caused by large-amplitude movement, can move up and down in a stressed state, and can rotate and rise and fall, so that the flexibility of the welding gun during welding is ensured, the micro-operation of workers is not limited, and the quality of welding seams is improved.

Referring to fig. 3, 4, 9 and 10, the welding protection plate 4 includes a connection seat 401 fixedly connected with the adjustable fixing support 2 through bolts, a fixing slider 402 is fixed on one surface of the connection seat 401 through bolts, a main baffle 403 is clamped on the fixing slider 402, two unfolding plates 404 are rotatably connected on one surface of the main baffle 403, a clamping groove 405 matched with the fixing slider 402 is formed in the bottom of one surface of the main baffle 403, the position of the welding protection plate 4 can be adjusted according to the use environment, whether the welding protection plate is unfolded or not is selected, high-temperature sputtering materials during welding can be effectively shielded, harm of welding work to human bodies is reduced, and particularly, when the welding protection plate is positioned at a back welding station, powerful safety protection is provided.

Referring to fig. 3, 4, 11 and 12, the adjustable wire rope guide rail 1 includes a wire rope body 101, one end of the wire rope body 101 is fixed with a connecting sleeve 102, the connecting sleeve 102 includes two fixing rings 1021 fixedly connected, the diameter of the inner holes of the two fixing rings 1021 is the same as the outer diameter of the cross section of the wire rope body 101, the outer circular side surface of one fixing ring 1021 fixedly connected with the wire rope body 101 and the outer circular bottom end of the other fixing ring 1021 are both fixed with fixing screws 1022 penetrating through the fixing ring 1021 and extending into the fixing ring 1201, the adjustable wire rope guide rail 1 is soft, is convenient to bend when in use, can be suitable for connection of most pipe diameters, and improves the application range of the auxiliary device.

Referring to fig. 3, 4 and 8, the adjustable fixing support 2 includes a square sleeve 201, two ends of the square sleeve 201 are slidably connected with a telescopic plate 202, one end of the telescopic plate 202 away from the square sleeve 201 is fixedly provided with a clamping sleeve 203 matched with the steel wire rope body 101 through bolts, a mounting hole limiting hole 204 is formed in the square sleeve 201, a through hole 205 matched with the mounting hole limiting hole 204 is formed in the telescopic plate 202, a mounting sleeve 206 matched with the internal thread sleeve 301 is fixed in the middle of the outer surface of the square sleeve 201, the telescopic fixing support can stretch out and draw back, the welding position can be conveniently and flexibly adjusted according to requirements when the adjustable fixing support is used, the adjustable fixing support is convenient to use, has obvious help on improving welding quality, can be suitable for various different welding seams, and improves the application range of the auxiliary device.

One specific application of this embodiment is: during the use, encircle two wire rope bodies 101 at the pipe fitting welding seam both ends that need welded, after adjusting the distance, make the distance of two wire rope bodies 101 to the welding seam equal, adjust the distance of adjustable fixed bolster 2 both ends cutting ferrule 203, then with adjustable fixed bolster 2 card on wire rope body 101 through cutting ferrule 203, install welder limit structure 3, when the position or the welding dead angle position that need welder be difficult for getting into, fixed centre gripping of welder through welder limit structure 3, be convenient for stretch into the welding gun to less position and weld, do not need manual handheld in order to be inconvenient for the gesture welding, reduce manual handheld intensity of labour, welder's stability when improving the welding, and then guarantee the quality of welding pipe fitting welding seam.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims

1. Auxiliary device is used in welding of body shielding surface small contained angle position, including two adjustable wire rope guide rail (1), its characterized in that:

an adjustable fixed bracket (2) which is in sliding connection with the adjustable steel wire rope guide rail (1) is arranged between the two adjustable steel wire rope guide rails (1);

the welding gun limiting structure (3) is fixed in the middle of the top of the adjustable fixing support (2), and welding protection plates (4) symmetrically arranged relative to the welding gun limiting structure (3) are fixed on the adjustable fixing support (2) through bolts;

the welding gun limiting structure (3) comprises an inner threaded sleeve (301) fixedly connected with the adjustable fixing support (2), and an outer threaded sleeve (302) coaxial with the inner threaded sleeve (301) is connected with the inner threaded sleeve (301) in a threaded manner;

a spring (303) is fixed inside the external thread sleeve (302), and one end of the spring (303) is fixed with a pressing telescopic rod (304) penetrating through the external thread sleeve (302) and coaxial with the external thread sleeve (302);

a rotary seat (305) is fixed at the top end of the pressing telescopic rod (304), and a rotary table (306) which is rotationally connected with the rotary seat (305) is sleeved on the rotary seat (305);

the rotary table (306) is characterized in that two clamping lug plates (307) are fixed on the top end face of the rotary table (306), two inner thread rotating sleeves (308) which are rotationally connected with the clamping lug plates (307) are respectively penetrated through the clamping lug plates (307), an outer threaded rod (309) coaxial with the inner thread rotating sleeves (308) is connected to the inner thread rotating sleeves (308) in a threaded mode, a clamping disc (310) is fixed at one end of the outer threaded rod (309) located between the two clamping lug plates, and an adjusting wheel (311) is fixed at one end, far away from the clamping disc (310), of the outer threaded rod (309).

2. The auxiliary device for welding the small included angle position of the shielding surface of the pipe body according to claim 1, wherein the welding protection plate (4) comprises a connection seat (401) fixedly connected with the adjustable fixing support (2) through bolts, a fixed sliding block (402) is fixedly arranged on one surface of the connection seat (401) through bolts, a main baffle (403) is clamped on the fixed sliding block (402), and two unfolding plates (404) are rotatably connected on one surface of the main baffle (403);

the bottom of one surface of the main baffle (403) is provided with a clamping groove (405) matched with the fixed sliding block (402).

3. The auxiliary device for welding the small included angle position of the shielding surface of the pipe body according to claim 1, wherein the adjustable steel wire rope guide rail (1) comprises a steel wire rope body (101), and a connecting sleeve (102) is fixed at one end of the steel wire rope body (101);

the connecting sleeve (102) comprises two fixed rings (1021) which are fixedly connected, and the inner hole diameter of the two fixed rings (1021) is the same as the outer diameter of the cross section of the steel wire rope body (101);

the side face of the outer circle of one fixing ring (1021) fixedly connected with the steel wire rope body (101) and the bottom end of the outer circle of the other fixing ring (1021) are both fixed with fixing screws (1022) penetrating through the fixing ring (1021) and extending into the fixing ring (1021).

4. The auxiliary device for welding the small included angle position of the shielding surface of the pipe body according to claim 1, wherein the adjustable fixing support (2) comprises a square sleeve (201), two ends of the square sleeve (201) are both connected with telescopic plates (202) in a sliding mode, and one end, far away from the square sleeve (201), of each telescopic plate (202) is fixed with a clamping sleeve (203) matched with the steel wire rope body (101) through bolts.

5. The auxiliary device for welding the small included angle position of the shielding surface of the pipe body according to claim 4, wherein the square sleeve (201) is provided with a mounting hole limiting hole (204), the telescopic plate (202) is provided with a through hole (205) matched with the mounting hole limiting hole (204), and a mounting sleeve (206) matched with the internal thread sleeve (301) is fixed in the middle of the outer surface of the square sleeve (201).

6. The auxiliary device for welding the small included angle position of the shielding surface of the pipe body according to claim 1, wherein the top of the outer circular surface of the inner threaded sleeve (301) and the top of the outer circular surface of the outer threaded sleeve (302) positioned outside the inner threaded sleeve (301) are penetrated by fastening bolts (312).

7. The auxiliary device for welding the small included angle position of the shielding surface of the pipe body according to claim 1, wherein one end of the pressing telescopic rod (304) positioned in the outer threaded sleeve (302) is fixedly provided with a baffle (313) matched with the inner cavity of the outer threaded sleeve (302), and the outer circular surface of the pressing telescopic rod (304) is fixedly provided with a limit strip (314) along the axis;

the guide groove matched with the limit bar (314) is formed in the top end face of the external thread sleeve (302), a fixing sleeve (315) matched with the external thread sleeve (302) is fixed at the bottom of the rotary seat (305), and a fixing groove matched with the limit bar (314) is formed in the inner wall of the fixing sleeve (315).