CN211162334U - Automatic straight seam welding mechanism - Google Patents

Automatic straight seam welding mechanism Download PDF

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Publication number
CN211162334U
CN211162334U CN201922319233.9U CN201922319233U CN211162334U CN 211162334 U CN211162334 U CN 211162334U CN 201922319233 U CN201922319233 U CN 201922319233U CN 211162334 U CN211162334 U CN 211162334U
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welding
copper
platform
cylinder
gun
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CN201922319233.9U
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冯展锋
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Foshan Shunde District Kwai Wind Ventilation Equipment Co ltd
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Foshan Shunde District Kwai Wind Ventilation Equipment Co ltd
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Abstract

The utility model discloses an automatic transversal joint welding mechanism, include: the supporting welding table comprises a supporting body, a copper platform arranged in a protruding mode along the length direction of the supporting body and a gap arranged in the length direction of the copper platform; the lead welding copper block is positioned on the supporting welding table and comprises a copper block body, a lead welding plane positioned on the upper surface of the copper block body and a boss positioned on one side of the copper block body, the boss is positioned at one end of the lead welding plane and is adjacent to the copper platform, and the cylinder is positioned on the copper platform and the boss and is adjacent to the side surface of the copper block body, which is provided with the boss; the back welding copper plate is positioned on the copper platform, and one end of the cylinder, which is far away from the lead welding copper block, is adjacent to the back welding copper plate; and the welding gun assembly comprises a welding gun platform positioned above the support welding platform, a welding gun arranged below the welding gun platform and an automatic wire feeding gun, and when the welding gun assembly is positioned at the initial position, the welding gun is positioned above the leading welding plane and is adjacent to the leading welding plane. The utility model discloses can once only weld drum straight joint around two sections and the whole welding in middling section, whole journey need not professional welder's operation.

Description

Automatic straight seam welding mechanism
Technical Field
The utility model relates to a straight welding technical field, concretely relates to automatic straight welding mechanism.
Background
The straight seam welding machine is a very general device in the current machining industry, and is mainly used for automatically straight seam welding a joint position of a cylinder (mainly used for a fan cylinder, the material of the cylinder is a cold-rolled sheet, and the thickness of the cylinder is between 0.8 and 1.8mm), but because welding positions at two ends of the cylinder are often used for processing such as pressing, stretching and the like, the general straight seam welding cannot meet the requirements of pressing and stretching, a plurality of production processes are that the straight seam welding machine is used for welding the middle part of the joint position of the cylinder, the front end and the rear end of the cylinder need to be welded by hands, and welding wires are matched for welding, so that the stretching resistance of the two ends of the cylinder is improved, and because of the manual welding process, the production efficiency of the cylinder straight seam welding is low, and the labor cost is high; in addition, because the welding process of manually adding welding wires at the front end and the rear end has higher requirements, argon arc welders with general skills cannot be competent, and if the whole section is removed by using a straight seam welding machine, no special process exists, the two ends of the cylinder can generate gaps, the gaps can cause the failure of the subsequent stretching or pressing process, and the condition of crater explosion is caused, so the front end and the rear end of the straight seam of the cylinder always need to be manually added and welded in the traditional process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an automatic transversal joint welding mechanism can once only be good with the whole welding in two sections and the middlings section around the drum transversal joint to improve drum transversal joint welding efficiency, reduce the manufacturing cost of enterprise.
To achieve the purpose, the utility model adopts the following technical proposal:
provided is an automatic straight seam welding mechanism including:
the supporting welding table is used for supporting a cylinder to be welded and comprises a supporting body, a copper platform arranged in a protruding mode along the length direction of the supporting body and a gap formed in the length direction of the copper platform;
the lead welding copper block is positioned on the supporting welding table and comprises a copper block body, a lead welding plane positioned on the upper surface of the copper block body and a boss positioned on one side of the copper block body, the boss is positioned at one end of the lead welding plane and is adjacent to the copper platform, and the cylinder is positioned on the copper platform and the boss and is adjacent to the side surface of the copper block body, which is provided with the boss;
the back welding copper plate is positioned on the copper platform, and one end of the cylinder, which is far away from the lead welding copper block, is adjacent to the back welding copper plate;
and the welding gun assembly comprises a welding gun platform positioned above the support welding platform, a welding gun arranged below the welding gun platform and an automatic wire feeding gun, and when the welding gun assembly is positioned at an initial position, the welding gun is positioned above the leading welding plane and is close to the leading welding plane.
As a preferred scheme of the automatic straight welding mechanism, a groove is formed in the upper surface of the copper block body, the groove bottom of the groove is the welding leading plane, and the upper surface of the boss is lower than the welding leading plane.
As a preferable mode of the automatic straight seam welding mechanism, a distance between an upper surface of the boss and the lead welding plane is 0.8 mm.
As a preferable scheme of the automatic straight seam welding mechanism, the thickness of the unwelded copper plate is 0.8 mm.
As a preferred scheme of the automatic straight welding mechanism, the length of the back-welded copper plate is 35-45 mm.
As a preferred scheme of the automatic straight welding mechanism, the width of the back-welded copper plate is 12-18 mm.
As a preferred scheme of the automatic straight seam welding mechanism, a connecting piece is arranged on one side, close to the back-welding copper plate, of the welding gun platform, the automatic wire feeding gun is connected with the connecting piece, and a welding wire arranged on the automatic wire feeding gun is close to a tungsten needle of the welding gun.
As a preferable scheme of the automatic straight seam welding mechanism, the distance between a tungsten needle of the welding gun and the surface of the cylinder is 1.5-1.8 mm.
The utility model has the advantages that: the utility model discloses add the copper piece that draws that is located the drum front end and is located the back welding copper of drum rear end on general longitudinal welding machine to and add automatic silk rifle that send in welder one side, after the drum clamping is fixed, can once only weld drum longitudinal front and back two sections and the whole welders' operation of middling section, whole need not professional. Compared with the prior art, adopt the utility model discloses an automatic transversal joint welding mechanism can improve drum transversal joint welding efficiency, reduces the manufacturing cost of enterprise.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of an automatic straight seam welding mechanism according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a support stage according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a lead-welding copper block according to an embodiment of the present invention.
In the figure:
1. supporting the welding table; 11. a support body; 12. a copper platform; 13. a gap;
2. welding a copper block; 21. a copper block body; 22. leading and welding a plane; 23. a boss;
3. removing the welding copper plate;
4. a welding gun assembly; 41. a welding torch table; 42. a welding gun; 43. an automatic wire feeding gun; 44. a connecting member;
100. a cylinder.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 3, the automatic straight seam welding mechanism in the present embodiment includes:
the support welding table 1 is used for supporting a cylinder 100 to be welded, and the support welding table 1 comprises a support body 11, a copper platform 12 arranged in a protruding mode along the length direction of the support body 11, and a gap 13 formed in the length direction of the copper platform 12;
the lead welding copper block 2 is positioned on the supporting welding table 1 and comprises a copper block body 21, a lead welding plane 22 positioned on the upper surface of the copper block body 21 and a boss 23 positioned on one side of the copper block body 21, the boss 23 is positioned at one end of the lead welding plane 22 and is adjacent to the copper platform 12, and the cylinder 100 is positioned on the copper platform 12 and the boss 23 and is adjacent to the side surface of the copper block body 21, which is provided with the boss 23;
the desoldering copper plate 3 is positioned on the copper platform 12, and one end of the cylinder 100 far away from the welding copper block 2 is adjacent to the desoldering copper plate 3;
and the welding gun assembly 4 comprises a welding gun table 41 positioned above the support welding table 1, a welding gun 42 arranged below the welding gun table 41 and an automatic wire feeding gun 43, and when the welding gun assembly 4 is positioned at the initial position, the welding gun 42 is positioned above the welding guiding plane 22 and is adjacent to the welding guiding plane 22.
In the embodiment, the welding-leading copper block 2 positioned at the front end of the cylinder 100 and the welding-withdrawing copper plate 3 positioned at the rear end of the cylinder 100 are added on the universal straight seam welding machine, the automatic wire feeding gun 43 is added on one side of the welding gun 42, and after the cylinder 100 is clamped and fixed, the front section, the rear section and the middle section of the straight seam of the cylinder 100 can be completely welded at one time without special welder operation in the whole process. Compared with the prior art, the automatic straight welding mechanism of the embodiment can improve the straight welding efficiency of the cylinder 100 and reduce the production cost of enterprises.
In this embodiment, the copper block body 21 has a function of fast positioning for clamping the cylinder 100, and a side surface of the copper block body provided with the boss 23 is a positioning surface. Specifically, when the cylinder 100 is placed on the support welding table 1 and the boss 23, one end of the cylinder abuts against a side surface of the copper block body 21 on which the boss 23 is provided, and then the cylinder is clamped and fixed. The clamping can be fixed by a pneumatic clamp or other clamps, and the cylinder 100 can be fixed on the support welding table 1, which is not described in detail.
The automatic wire feeder 43 is a conventional product, and can be purchased, installed and used directly, and after the automatic wire feeder 43 is installed, the area where spot welding starts can be moved forward to the welding plane 22 of the copper block 2.
The upper surface of the copper block body 21 is provided with a groove, the groove bottom of the groove is the leading welding plane 22, the upper surface of the boss 23 is lower than the leading welding plane 22, and the leading welding plane 22 can be closer to the upper surface of the cylinder 100, so that the welding quality is improved.
In this embodiment, the distance between the upper surface of the boss 23 and the leading welding plane 22 is 0.8mm, so that when the cylinder 100 with the thickness of 0.8-1.8 mm is welded, the height of the leading welding plane 22 is closer to the upper surface of the cylinder 100, and the welding quality of the front section of the welding seam is ensured.
Specifically, the thickness of the desoldering copper plate 3 is 0.8mm, so that the height position of the upper surface of the desoldering copper plate 3 is closer to the upper surface of the cylinder 100, and the welding quality of the rear section of the welding seam is ensured.
Specifically, the length of the reflow copper plate 3 is 35 to 45mm, preferably 40 mm.
Specifically, the width of the reflow copper plate 3 is 12-18 mm, preferably 15 mm.
In this embodiment, a connecting piece 44 is disposed on one side of the welding gun platform 41 close to the copper backing plate 3, the automatic wire feeding gun 43 is connected with the connecting piece 44, and the welding wire mounted on the automatic wire feeding gun 43 is adjacent to the tungsten needle of the welding gun 42.
Wherein, the distance between the tungsten needle of the welding gun 42 and the surface of the cylinder 100 is 1.5-1.8 mm.
When the automatic straight seam welding mechanism of the present embodiment is used to weld the straight seam of the cylinder 100, it is necessary to set the traveling speed of the welding torch, the feeding wire, and the collecting wire of the original straight seam welding machine in stages. Specifically, the process is divided into three stages, as shown in fig. 1, the AB section is a wire feeding and welding section, the advancing speed is slow, the wire feeding is started 0.5s after the arc starting of the welding gun according to the difference (0.8-1.8 mm) of the thickness of the cylinder 100 and is generally 3-10 mm/s, and the wire feeding is stopped when the point B is reached; the BC section is a common straight seam welding section, the advancing speed is high, wire feeding is not needed in the whole section, and the speed is 4-16 mm/s according to the difference of the thickness of the cylinder 100; the CD section is a wire feeding and welding withdrawing section, the advancing speed is consistent with that of the wire feeding and welding leading section, the wire feeding is started when the CD section enters a point C, the wire feeding is stopped after the CD section reaches a point D, and the arc extinction of a welding gun is realized.
Before welding the cylinders by adopting the existing straight seam welding machine, taking an enterprise producing 5000 cylinders in one month as an example, after each cylinder is subjected to mechanical straight seam welding, the front end and the rear end of the cylinder need to be welded by hands, and the working hour of each cylinder is increased by at least 50s, namely 70 hours each month. If from manufacturing cost, choose for use the utility model discloses a way does not need professional welder, and a general worker just can easily accomplish, counts according to this process of manual repair welding, and every drum averagely needs 0.7 yuan, and is about 3500 yuan because of the cost of labor that increases because of manual welding drum both ends monthly. No matter from efficiency or cost, adopt the utility model discloses an automatic transversal joint welding mechanism welds all is a preferred scheme to the transversal joint of drum.
The automatic straight seam welding mechanism of the present invention will be described in detail below by taking as an example the welding of a cylinder having a thickness of 0.9mm and a length of 400 mm.
The conventional parameters are as follows: selecting CO for welding wire2ER50-6 for welding, the diameter of the welding wire is 0.8mm, the diameter of the tungsten needle is 2.4 mm, and the distance between the tungsten needle and the cylinder is 1.5-1.8 mm; the point A is arranged on the leading welding plane and is about 10mm away from the front end of the cylinder, the point B is arranged about 15mm behind the beginning of the welding seam of the cylinder, the point C is arranged about 15mm in front of the tail end of the cylinder, and the point D is arranged on the back welding copper plate and is about 10mm away from the tail end of the cylinder.
The specific working steps are as follows:
according to the requirement of 0.9mm thickness, the welding current of an argon arc welding machine is set to be 85A, the advancing speed of an AB section is set to be 8mm/s, the advancing speed of a BC section is set to be 16mm/s, the advancing speed of a CD section is set to be 8mm/s, and the wire feeding speeds of the AB section and the CD section are unified to be 15 mm/s;
and (II) placing the rolled cylinder to be welded on a supporting welding table, wherein one end of the cylinder is tightly attached to the side surface of the copper block body 21, which is provided with the boss 23, and clamping the cylinder.
The third step, the welding is automatically started by the program, the ① welding torch starts to arc after passing through the point A, the wire feeding is started after 0.5s, the welding spot with the welding wire is just formed at the edge of the welding seam of the cylinder, small welding heaps instead of gaps can be generated in the welding at the position under the help of the welding copper block, the welding process effect is qualified, the speed can be increased to 16mm/s because the wire feeding is not needed after the ② welding torch enters the BC section, the speed is reduced to 8mm/s after the ③ welding torch reaches the point C, the wire feeding is carried out at the same time, the welding torch can form a welding heaps with the welding wire at the tail end of the cylinder due to the help of the welding copper plate withdrawing when the welding torch passes through the tail end of the cylinder, and the welding spot is.
Meanwhile, because the reaction of the iron plate and the copper to argon arc welding is different, the lead welding copper block and the desoldering copper plate can not be welded with the cylinder, the process can be used for a long time, copper parts for lead welding and desoldering are not easy to damage, the lead welding copper block can be continuously used for more than 9 months according to the quantity of welding for 300 times every day, the desoldering copper plate can be continuously used for more than 3 months, and the replacement is also very convenient.
It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims (8)

1. An automatic straight seam welding mechanism, characterized by comprising:
the supporting welding table is used for supporting a cylinder to be welded and comprises a supporting body, a copper platform arranged in a protruding mode along the length direction of the supporting body and a gap formed in the length direction of the copper platform;
the lead welding copper block is positioned on the supporting welding table and comprises a copper block body, a lead welding plane positioned on the upper surface of the copper block body and a boss positioned on one side of the copper block body, the boss is positioned at one end of the lead welding plane and is adjacent to the copper platform, and the cylinder is positioned on the copper platform and the boss and is adjacent to the side surface of the copper block body, which is provided with the boss;
the back welding copper plate is positioned on the copper platform, and one end of the cylinder, which is far away from the lead welding copper block, is adjacent to the back welding copper plate;
and the welding gun assembly comprises a welding gun platform positioned above the support welding platform, a welding gun arranged below the welding gun platform and an automatic wire feeding gun, and when the welding gun assembly is positioned at an initial position, the welding gun is positioned above the leading welding plane and is close to the leading welding plane.
2. The automatic straight seam welding mechanism of claim 1, wherein a groove is formed in an upper surface of the copper block body, a groove bottom of the groove is the welding leading plane, and an upper surface of the boss is lower than the welding leading plane.
3. The automatic straight seam welding mechanism according to claim 2, characterized in that a distance between an upper surface of the boss and the pilot welding plane is 0.8 mm.
4. The automatic straight seam welding mechanism according to claim 1, wherein the thickness of the unwelded copper plate is 0.8 mm.
5. The automatic straight seam welding mechanism according to claim 1, wherein the length of the back-welded copper plate is 35 to 45 mm.
6. The automatic straight seam welding mechanism according to claim 1, wherein the width of the back-welded copper plate is 12-18 mm.
7. The automatic straight seam welding mechanism according to claim 1, wherein a connecting member is provided on a side of the welding gun station adjacent to the copper backing plate, the automatic wire feeder is connected to the connecting member, and a welding wire mounted on the automatic wire feeder is adjacent to a tungsten needle of the welding gun.
8. The automatic straight seam welding mechanism according to claim 5, wherein a distance between a tungsten needle of the welding gun and a surface of the cylinder is 1.5 to 1.8 mm.
CN201922319233.9U 2019-12-19 2019-12-19 Automatic straight seam welding mechanism Active CN211162334U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922319233.9U CN211162334U (en) 2019-12-19 2019-12-19 Automatic straight seam welding mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922319233.9U CN211162334U (en) 2019-12-19 2019-12-19 Automatic straight seam welding mechanism

Publications (1)

Publication Number Publication Date
CN211162334U true CN211162334U (en) 2020-08-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922319233.9U Active CN211162334U (en) 2019-12-19 2019-12-19 Automatic straight seam welding mechanism

Country Status (1)

Country Link
CN (1) CN211162334U (en)

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