CN217316332U

CN217316332U - Welding tool and automatic welding machine for single-side welding and double-side forming of straight welded pipe

Info

Publication number: CN217316332U
Application number: CN202221127287.0U
Authority: CN
Inventors: 马世敬; 宋健; 蔡春亮; 申会芳; 宗绍国; 高峰; 都骞
Original assignee: Shandong Houde Control Technology Co ltd
Current assignee: Shandong Houde Control Technology Co ltd
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-08-30
Anticipated expiration: 2032-05-11

Abstract

The utility model relates to the field of welding technique, specifically disclose a welding frock and automatic welding machine of straight welded pipe single face welding double-sided shaping. Welding frock of straight welded pipe single face welding two-sided shaping includes: the V type strip, the V type strip has first end and second end, the fixing base is connected to the first end of V type strip, the second end connection regulation seat of V type strip, it can slide along the V type strip to adjust the seat, the fixing base with it is L shape to adjust the seat and is used for with welding frock joint is treating welding pipe both ends, V type strip bottom sets up trachea subassembly and is used for letting in argon gas to the welding pipe straight seam inboard. The welding tool prevents the occurrence of welding slag, missing welding, uneven welding and other adverse effects on the inner side of the welded pipe, improves the quality of a welding seam, lightens the labor intensity and protects the health of operating personnel.

Description

Welding tool and automatic welding machine for single-side welding and double-side forming of straight welded pipe

Technical Field

The utility model relates to the field of welding technique, especially, relate to a welding frock and automatic welding machine of straight welded pipe single face welding double-sided shaping.

Background

The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.

A straight welded pipe is a pipe obtained by rolling a hot-rolled or cold-rolled steel sheet or strip into a cylinder and then performing straight welding on a welding apparatus, and is named because the welded portion of the welded pipe is aligned. The longitudinal welded pipe is mainly used in the fields of tap water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, urban construction and the like, is used for conveying liquid and gas, and is used as a building structure.

In the prior art, a steel plate is coiled into a cylinder, the cylinder is placed on a fixed frame, and submerged arc welding is adopted to weld the outer side of a straight welded pipe, so that the problems of welding slag, uneven welding and the like on the inner side of the straight welded pipe can be caused by the welding process. Some welding at the outer side can be done manually to the inner side of the straight seam, but the welding of the inner and outer seams is time-consuming, which affects the production efficiency and wastes manpower and welding materials. In the process of welding the inner welding seam, a welder needs to drill into the welding pipe to carry out welding construction, and welding arc light, smoke and the like seriously affect the health of the welder. When the pipe diameter is too small, welding personnel cannot enter the pipe to weld, so that the inner seam cannot be welded, and the quality of the welding seam is affected.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the embodiment of the utility model aims at providing a welding tool for single-side welding and double-side forming of a straight welded pipe, wherein an argon protective layer is formed on the outer side and the inner side of the welded pipe during welding to prevent air from contacting with a welding surface, so that the welding effect of single-side welding and double-side forming is achieved, the undesirable effects of welding slag, missing welding, uneven welding and the like on the inner side of the welded pipe are prevented, and the welding quality is improved; therefore, the inner side of the welded pipe does not need to be welded, the labor intensity is reduced, and the health of the operating personnel is protected.

Another object of the utility model is to provide an automatic welding machine of welding frock based on above-mentioned longitudinal welded pipe single face welding double-sided forming.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

the utility model provides a two-sided shaping's of longitudinal welded pipe single face welding frock, includes: the V-shaped strip, the V-shaped strip has first end and second end, the fixing base is connected to the first end of V-shaped strip, the second end joint regulation seat of V-shaped strip, it can slide along V-shaped strip to adjust the seat, the fixing base with it is L shape to adjust the seat and is used for with the welding frock joint is treating welding pipe both ends, V-shaped strip bottom sets up trachea subassembly and is used for letting in argon gas to the welding pipe straight seam inboard.

In another preferred embodiment, the V-shaped strip comprises a V-shaped plate, the V-shaped plate comprises a first plate and a second plate which are at an angle, the first plate and the second plate are respectively provided with a supporting plate, and the two supporting plates are located in a plane.

In another preferred embodiment, the V-shaped plate is provided with at least two air holes for introducing argon.

In another preferred embodiment, the adjusting seat is an L-shaped bending plate, and includes a first transverse plate and a first vertical plate, the first vertical plate is provided with a groove, the cross section of the groove is the same as the cross section of the V-shaped strip, and the width of the groove is greater than the thickness of the corresponding portion of the V-shaped strip.

In another preferred embodiment, the first vertical plate is provided with a first through hole, the first through hole and the second through hole are both provided with threads, the first transverse plate is provided with a second through hole, and a notch groove is further formed in the middle of the first transverse plate and the first vertical plate.

In another preferred embodiment, the air pipe assembly comprises a first air pipe and a second air pipe, one end of the first air pipe is connected with an air source, the other end of the first air pipe is connected with the second air pipe through a first joint, and the second end of the second air pipe is connected to the air hole of the V-shaped plate through a second joint, wherein the second joint is a three-way joint.

In another preferred embodiment, a sealing strip is arranged in the gap between the supporting plate and the pipe to be welded, and the cross section of the sealing strip is oval.

In another preferred embodiment, still include clamp plate and the regulating plate of dismantling the connection, the regulating plate is the L type board of bending, including horizontal folded plate and perpendicular folded plate, erect the folded plate seted up the adjustment tank with adjust the seat and be connected, the clamp plate is close to one side of regulating plate has the concave station, the concave station with horizontal folded plate forms the joint the draw-in groove of clamp plate.

In another preferred embodiment, the fixing seat is an L-shaped bending plate, and includes a second transverse plate and a second vertical plate, the second transverse plate is provided with a through hole, and the middle portion of the second transverse plate and the second vertical plate is further provided with a notch groove.

The embodiment of the utility model provides an automatic welding machine is still provided, include as above the two-sided shaping welding frock of transversal welded pipe single face welding.

The embodiment of the utility model provides an in one or more technical scheme, following technological effect or advantage have at least:

1. the utility model discloses a welding frock passes the second end of V type strip when using and treats welding pipe, and the seat is adjusted in the installation, adjusts the position of seat on V type strip according to welding pipe length adjustment, makes the fixing base with adjust the seat joint on treating the both ends pipe wall of welding pipe. During welding, argon is introduced into the inner side of a straight seam of the welded pipe through an air pipe assembly on the lower side of the V-shaped strip, so that an argon protective layer is formed on the outer side and the inner side of the welded pipe to prevent air from contacting with a welding surface, the welding effect of single-side welding and double-side forming is achieved, undesirable effects such as welding slag, missing welding, uneven welding and the like on the inner side of the welded pipe are prevented, and the quality of a welding seam is improved; therefore, the inner side of the welded pipe does not need to be welded, the labor intensity is reduced, and the health of the operating personnel is protected.

2. If one operator is used for welding, the other operator performs argon protection work on the back, the argon arc welding efficiency is low, and the argon protection work needs to occupy the labor force of one operator for a long time. Moreover, when the small-diameter welded pipe is used for argon protection, the operation space is narrow, so that the operation is inconvenient for workers, and the long-time continuous work cannot be performed. The utility model discloses a set up trachea subassembly at V section downside and let in argon gas, compare in above-mentioned welding process, reduced the hand labor power, improved argon arc welding operation efficiency. The air pipe assembly replaces manpower, so that the labor cost is greatly reduced; the reliability of the tool replaces manual instability, and the generation of inferior-quality products is reduced; meanwhile, the problem that the small-diameter equipment is inconvenient to perform argon arc welding gas protection work is solved.

3. The sealing strip is arranged in the gap between the supporting plate and the pipe to be welded, so that on one hand, the introduced argon is prevented from directly flowing out from the gap between the V-shaped strip and the pipe to be welded, and the waste of the argon is avoided; on the other hand, the V-shaped strip is not in direct contact with the welded pipe to be welded, so that the V-shaped strip is prevented from scratching the inner wall of the welded pipe.

4. The clamp plate of the V-shaped strip is clamped through a clamp groove formed by the clamp plate concave station and the adjusting plate transverse folded plate, then the adjusting groove formed by the adjusting plate vertical folded plate is connected to the first vertical plate of the adjusting seat, the adjusting seat is pressed on a pipe to be welded, the welding tool is firmly installed on the welded pipe, and the stability of the welding tool is guaranteed.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Fig. 1 is an assembly schematic diagram of a welding tool and a welded pipe to be welded provided by an embodiment of the present invention;

fig. 2 is a schematic view of a welding tool provided by an embodiment of the present invention;

fig. 3 is a schematic view of a welding tool provided by an embodiment of the present invention;

fig. 4 is a schematic view of an adjusting seat of the welding tool provided in the embodiment of the present invention;

fig. 5 is a schematic view of a fixing seat of a welding tool provided in an embodiment of the present invention;

fig. 6 is a schematic view illustrating the cooperation of a pressing plate and an adjusting plate of the welding tool according to an embodiment of the present invention;

fig. 7 is a schematic view of the welding tool sealing strip and the V-shaped strip provided by the embodiment of the present invention;

FIG. 8 is a schematic view of a portion of an automatic welder provided by an embodiment of the present invention;

in the figure:

1. a pipe welding tool; 2. welding a pipe to be welded;

11. v-shaped strips; 12. a sealing strip; 13. an adjusting seat; 14. pressing a plate; 15. an adjusting plate; 16. an air tube assembly; 17. a fixed seat;

111. a V-shaped plate; 112. a support plate; 113. air holes;

131. a first transverse plate; 132. a first vertical plate; 133. a groove; 134. a first through hole; 135. a second through hole; 136. a notch groove;

141. a third through hole; 151. an adjustment groove;

161. a first air pipe; 162. a first joint; 163. a second air pipe; 164. a second joint;

the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the illustration is for illustrative purposes only.

Detailed Description

The terms "mounted," "connected," "fixed," and the like in the present invention are to be understood in a broad sense, and may be, for example, fixedly connected, detachably connected, or integrated; the two components can be connected mechanically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and specific meanings of the terms in the present invention can be understood by those skilled in the art according to specific situations.

As described in the background art, the existing welding process can cause the problems of welding slag, uneven welding and the like on the inner side of the straight seam. The inner side of the straight seam is manually welded once, so that the welding takes time, the production efficiency is influenced, and meanwhile, the labor and welding materials are wasted. In the process of welding the inner welding seam, welding arc light, smoke and the like seriously affect the body health of staff. The pipe diameter undersize, welding personnel can't get into intraductal welding again to send the unable welding of inner joint, influence the welding seam quality, in order to solve above technical problem, the utility model provides a straight welded pipe single face welds two-sided shaping's welding frock.

As shown in fig. 1-7, an embodiment of the present invention describes a welding tool for single-side welding and double-side forming of a longitudinal welded pipe, including: v type strip 11, V type strip 11 has first end and second end, fixing base 17 is connected to the first end of V type strip 11, the second end connection regulation seat 13 of V type strip 11, it can slide along V type strip 11 to adjust seat 13, fixing base 17 with it is L shape to adjust seat 13 and is used for with welding frock joint is treating 2 both ends of welded tube, V type strip 11 bottom sets up trachea subassembly 16 and is used for letting in argon gas to the welded tube straight seam inboard.

The first end of the V-shaped strip 11 is the left end in fig. 1, the second end is the right end in fig. 1, and the fixing seat 17 is fixedly connected with the V-shaped strip 11, and may adopt welding or other methods. The adjusting seat 13 is sleeved on the V-shaped strip 11 and connected in a sliding manner. During the use, pass the second end of V shaped strip 11 and wait to weld welded tube 2, installation regulation seat 13 adjusts the position of adjusting seat 13 on V shaped strip 11 according to welded tube length, makes fixing base 17 and regulation seat 13 joint on waiting to weld the both ends pipe wall of welded tube 2. During welding, argon is introduced into the inner side of a straight seam of the welded pipe through the air pipe assembly 16 on the lower side of the V-shaped strip 11, so that an argon protective layer is formed on the outer side and the inner side of the welded pipe to prevent air from contacting with a welding surface, the welding achieves the effect of single-side welding and double-side forming, poor effects such as welding slag, welding missing, uneven welding and the like on the inner side of the welded pipe are prevented, and the quality of a welding seam is improved; therefore, the inner side of the welded pipe does not need to be welded, the labor intensity is reduced, and the health of the operating personnel is protected.

As shown in fig. 3, the V-shaped strip 11 includes a V-shaped plate 111, the V-shaped plate 111 includes a first plate and a second plate which are at a certain angle, the first plate and the second plate are respectively provided with a supporting plate 112, the two supporting plates 112 are located in a plane, the area of the upper side surface of the V-shaped strip 11 is increased by the supporting plates 112, and a bearing basis is provided for installing the sealing strip 12.

The V-shaped plate 111 is provided with at least two air holes 113 for introducing argon. Because some welded tubes are longer, the argon gas on the inner side of the welded tube can be more uniform by arranging the plurality of air holes 113, and the welding quality is ensured.

As shown in fig. 4, the adjusting seat 13 is an L-shaped bending plate, and includes a first horizontal plate 131 and a first vertical plate 132, the first vertical plate 132 is provided with a groove 133, a cross section of the groove 133 is the same as a cross section of the V-shaped strip 11, and a width of the groove 133 is greater than a thickness of a corresponding portion of the V-shaped strip 11. The adjusting seat 13 is sleeved on the V-shaped strip 11 through the groove 133, so that the adjusting seat 13 can move along the V-shaped strip 11.

The first vertical plate 132 is provided with a first through hole 134, the first transverse plate 131 is provided with a second through hole 135, the first through hole 134 and the second through hole 135 are both provided with threads, the middle parts of the first transverse plate 131 and the first vertical plate 132 are also provided with notch grooves 136, and the welding tool can be fixed on the pipe 2 to be welded by bolts through the threads in the second through hole 135 of the first transverse plate 131, so that the welding tool is firmer.

As shown in fig. 2, the air pipe assembly 16 includes a first air pipe 161 and a second air pipe 163, one end of the first air pipe 161 is connected to an air source, the other end is connected to the second air pipe 163 through a first joint 162, a second end of the second air pipe 163 is connected to the air holes 113 of the V-shaped plate 111 through a second joint 164, wherein the second joint 164 is a three-way joint.

If one operator is used for welding, the other operator performs argon protection work on the back, the argon arc welding efficiency is low, and the argon protection work needs to occupy the labor force of one operator for a long time. Moreover, when the small-diameter welded pipe is used for argon protection, the operation space is narrow, so that the operation is inconvenient for workers, and the long-time continuous work cannot be performed. The utility model discloses a set up trachea subassembly 16 and let in argon gas at 11 downside of V section bar, compare in above-mentioned welding process, reduced the hand labor power, improved argon arc welding operation efficiency. The air pipe assembly 16 replaces manpower, so that the labor cost is greatly reduced; the reliability of the tool replaces manual instability, and the generation of inferior-quality products is reduced; meanwhile, the problem that the small-diameter equipment is inconvenient to perform argon arc welding gas protection work is solved.

Further, a metering instrument is arranged at the first gas pipe 161, and the metering instrument is used for controlling the gas output quantity of the argon gas, so that the convenience in controlling the argon gas conveying pipe is improved.

A sealing strip 12 is arranged in a gap between the supporting plate 112 and the pipe 2 to be welded, and the cross section of the sealing strip 12 is oval. The sealing strip 12 is made of rubber and deforms to a certain extent after being installed. By arranging the sealing strip 12 in the gap between the supporting plate 112 and the welded pipe 2 to be welded, on one hand, the introduced argon is prevented from directly flowing out from the gap between the V-shaped strip 11 and the welded pipe 2 to be welded, so that the waste of the argon is avoided; on the other hand, the V-shaped strip 11 is not in direct contact with the welded pipe 2 to be welded, so that the V-shaped strip 11 is prevented from scratching the inner wall of the welded pipe.

As shown in fig. 6, the welding fixture of this embodiment further includes a press plate 14 and an adjusting plate 15 which can be detachably connected, the adjusting plate 15 is an L-shaped bending plate, and includes a transverse bending plate and a vertical bending plate, the vertical bending plate is provided with an adjusting groove 151 and is connected with the adjusting seat 13, the press plate 14 is close to one side of the adjusting plate 15 is provided with a concave table, and the concave table is connected with the transverse bending plate to form a clamping groove of the press plate 14. Specifically, a bolt is installed on the first through hole 134 through the adjustment groove 151, and certain adjustment is possible. The pressing plate 14 is provided with a third through hole 141, the pressing plate 14 penetrates through a third through hole through a bolt and is connected to the adjusting plate 15, the pressing plate 14 of the V-shaped strip 11 is clamped in a clamping groove formed by a concave table of the pressing plate 14 and a transverse folded plate of the adjusting plate 15, then the pressing plate is connected to the first vertical plate 132 of the adjusting seat 13 through an adjusting groove 151 of a vertical folded plate of the adjusting plate 15, and the pressing plate is tightly pressed on the pipe to be welded 2 through the adjusting seat 13, so that the welding tool is firmly installed on the welded pipe, and the stability of the welding tool is guaranteed.

As shown in fig. 5, the fixing seat 17 is substantially similar to the adjusting seat 13 except that the fixing seat 17 does not have the groove 133 and the first through hole 134 on the first riser 132. Specifically, fixing base 17 is the L type board of bending, including second diaphragm and second riser, it has the through-hole to open on the second diaphragm, the second diaphragm with second riser middle part still opens notch groove 136.

The welding process by adopting the welding tool is as follows:

fixing the sealing strip 12 on a pressing plate 14 of the V-shaped strip 11, enabling the second end of the V-shaped strip 11 to penetrate through the pipe 2 to be welded, installing an adjusting seat 13, adjusting the position of the adjusting seat 13 on the V-shaped strip 11 according to the length of the pipe, and fixing through bolts to enable a fixed seat 17 and the adjusting seat 13 to be clamped on pipe walls at two ends of the pipe 2 to be welded. During welding, the first air pipe 161 is connected with the argon bottle, argon is introduced into the inner side of the straight seam of the welded pipe through the air pipe assembly 16, and the automatic welding machine is started to start welding. The argon protective layers are formed on the outer side and the inner side of the welded pipe to prevent air from contacting with a welding surface, so that the welding effect of single-side welding and double-side forming is achieved, the bad effects of welding slag, welding missing, uneven welding and the like on the inner side of the welded pipe are prevented, and the quality of a welding seam is improved; therefore, the inner side of the welded pipe does not need to be welded, the labor intensity is reduced, and the health of the operating personnel is protected.

Based on above-mentioned welding frock, the embodiment of the utility model provides an still provide an automatic welding machine, this automatic welding machine adopts above-mentioned embodiment the welding frock, because above-mentioned welding frock has above-mentioned technological effect, then adopt the technological effect of the automatic welding machine of this welding frock please refer to above-mentioned embodiment.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.

Claims

1. The utility model provides a two-sided shaping's of longitudinal welded pipe single face welding frock which characterized in that includes: the V-shaped strip, the V-shaped strip has first end and second end, the fixing base is connected to the first end of V-shaped strip, the second end joint regulation seat of V-shaped strip, it can slide along V-shaped strip to adjust the seat, the fixing base with it is L shape to adjust the seat and is used for with the welding frock joint is treating welding pipe both ends, V-shaped strip bottom sets up trachea subassembly and is used for letting in argon gas to the welding pipe straight seam inboard.

2. The welding fixture for single-side welding and double-side forming of the straight welded pipe according to claim 1, wherein the V-shaped strip comprises a V-shaped plate, the V-shaped plate comprises a first plate and a second plate which are at a certain angle, the first plate and the second plate are respectively provided with supporting plates, and the two supporting plates are located in a plane.

3. The welding tool for single-side welding and double-side forming of the straight welded pipe according to claim 2, wherein the V-shaped plate is provided with at least two air holes for introducing argon.

4. The welding fixture for single-side welding and double-side forming of the longitudinal welded pipe according to claim 2, wherein the adjusting seat is an L-shaped bending plate and comprises a first transverse plate and a first vertical plate, the first vertical plate is provided with a groove, the cross section of the groove is the same as the cross section of the V-shaped strip, and the width of the groove is larger than the thickness of the corresponding part of the V-shaped strip.

5. The welding fixture for single-side welding and double-side forming of the straight welded pipe according to claim 4, wherein the first vertical plate is provided with a first through hole, threads are respectively arranged in the first through hole and the second through hole, the first transverse plate is provided with a second through hole, and a notch groove is further formed in the middle of the first transverse plate and the first vertical plate.

6. The welding tool for single-side welding and double-side forming of the straight welded pipe according to claim 3, wherein the gas pipe assembly comprises a first gas pipe and a second gas pipe, one end of the first gas pipe is connected with a gas source, the other end of the first gas pipe is connected with the second gas pipe through a first joint, the second end of the second gas pipe is connected to the gas hole of the V-shaped plate through a second joint, and the second joint is a three-way joint.

7. The welding tool for single-side welding and double-side forming of the straight welded pipe according to claim 2, wherein a sealing strip is arranged in a gap between the supporting plate and the pipe to be welded, and the cross section of the sealing strip is oval.

8. The welding tool for single-side welding and double-side forming of the straight welded pipe according to claim 4, further comprising a pressing plate and an adjusting plate which are detachably connected, wherein the adjusting plate is an L-shaped bending plate and comprises a transverse bending plate and a vertical bending plate, the vertical bending plate is provided with an adjusting groove connected with the adjusting seat, one side of the pressing plate, which is close to the adjusting plate, is provided with a concave table, and the concave table and the transverse bending plate form a clamping groove for clamping the pressing plate.

9. The welding fixture for single-side welding and double-side forming of the straight welded pipe according to claim 1, wherein the fixing seat is an L-shaped bending plate and comprises a second transverse plate and a second vertical plate, a through hole is formed in the second transverse plate, and a notch groove is formed in the middle of the second transverse plate and the second vertical plate.

10. An automatic welding machine, characterized by comprising the welding tool for single-side welding and double-side forming of the longitudinal welded pipe according to any one of claims 1 to 9.