CN211661391U

CN211661391U - Back argon protection tool for plasma welding

Info

Publication number: CN211661391U
Application number: CN202020107269.0U
Authority: CN
Inventors: 尹士端; 孙东平; 王炳昌; 袁俊伟; 邓丽芬; 梅永正
Original assignee: Qujing Senior Technical School
Current assignee: Qujing Senior Technical School
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-10-13
Anticipated expiration: 2030-01-17

Abstract

The utility model discloses a back argon gas protection frock for plasma welding, include the base and install the universal wheel in the base bottom, the middle part of base is provided with the riser, the riser divide into gas supply district and frock district with the base, argon gas jar has been placed in the gas supply district, be provided with the sleeve pipe in the frock district, the stand, flat board and cylinder, dull and stereotyped upper surface processing has dovetail type spout, slidable mounting has the draw runner in the dovetail type spout, the upper surface of draw runner has a plurality of smooth teeth along the length direction processing of draw runner, the top of smooth tooth is provided with the motor, install the gear on the output shaft of motor, gear and smooth tooth intermeshing, the one end of draw runner is connected with the connecting plate detachablely, be connected with two gas safety covers that the structure is the same respectively through two down tubes on the connecting plate. The utility model discloses the security is high, and convenient operation is favorable to improving welding quality and efficiency, has apparent economic value and social value.

Description

Back argon protection tool for plasma welding

Technical Field

The utility model relates to the field of welding technique, concretely relates to back argon protection frock for plasma welding.

Background

The plasma welding has stable electric arc and strong adaptability, is commonly used for welding stainless steel and is also used for welding metals such as aluminum, magnesium, titanium and the like and alloys thereof; plasma arc directive property is good, and it is powerful to spray, and the energy is concentrated, and the penetration ability is strong, can once weld through thicker metal, so during plasma welding, the welding material can not process the welding groove, once can realize the two-sided shaping of single-side welding of 8mm stainless steel, and not only the welding seam appearance is pleasing to the eye, level and smooth, and the quality is fabulous, has still reduced the preparation work before welding by a wide margin, has improved welding quality and welding efficiency. However, because the welding temperature during plasma welding is very high, the metal base material is very easy to react with oxygen, nitrogen, hydrogen and other gases in the air at the high temperature, so that the welding quality is reduced, and in order to avoid the influence on the welding quality, the welding part can be welded under the protection of inert gases such as argon or helium during plasma welding, therefore, an argon protective cover is usually placed on the back of the base material during welding, and argon is introduced to isolate the welding part from the air, so that the welding quality is ensured.

The following problems of the existing argon protective cover are found in the actual welding process: firstly, most argon gas protective covers are manually operated, the temperature of a welding gun and the temperature of the argon gas protective covers are rapidly increased due to high temperature emitted during plasma welding, operators are easily scalded, and the safety performance is poor; secondly, the operation difficulty is high during manual operation, the labor intensity is high, operators are very easy to be fatigued, improper operation and errors are easy to occur, the welding seam quality and the welding efficiency of plasma welding can be affected, and the high-efficiency and high-quality performance of the plasma welding cannot be fully exerted. Therefore, the research and development of the back argon protection tool for plasma welding, which has high safety and convenient operation and is beneficial to improving the welding quality and efficiency, is objectively needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a security is high, convenient operation, is favorable to improving the back argon protection frock that is used for plasma welding of welding quality and efficiency.

The utility model aims at realizing the purpose, which comprises a base and universal wheels arranged at the bottom of the base, wherein the middle part of the base is provided with a vertical plate, the vertical plate divides the base into two areas, one of the two areas is a gas supply area, the other area is a tool area, an argon gas tank is arranged in the gas supply area, a vertical frame and a cylinder are arranged in the tool area, the vertical frame comprises four sleeve pipes, the four sleeve pipes are arranged in a rectangular structure, the lower ends of the sleeve pipes are fixed on the base, stand columns are inserted at the upper ends of the sleeve pipes, a flat plate is arranged between the four stand columns through connecting rods, the cylinder is positioned below the flat plate, the cylinder body of the cylinder is fixed on the base, the piston rod of the cylinder is connected with the lower surface of the flat plate, the upper surface of the flat plate is processed with a dovetail-shaped chute, the length direction of the dovetail-shaped chute is parallel to the length direction of the, the flat plate is provided with a motor, a gear is installed on an output shaft of the motor, the gear is meshed with a sliding tooth, one end of a sliding strip is detachably connected with a connecting plate, two gas protection covers with the same structure are connected to the connecting plate through two inclined rods respectively, the gas protection covers are hollow cuboid structures with one side being open, the length direction of one gas protection cover is parallel to that of the sliding strip, and the length direction of the other gas protection cover is perpendicular to that of the sliding strip.

Furthermore, the included angle between the two inclined rods is 90 degrees.

Further, gaseous safety cover includes the bottom plate and the cover body, and the bottom plate is fixed at the tip of down tube, is provided with a plurality of telescopic links between the bottom of the cover body and the bottom plate, installs the spring on the telescopic link.

Furthermore, the cover body comprises an outer shell and an inner shell, an airtight water cooling cavity is defined between the outer shell and the inner shell, an air inlet pipe and an water inlet pipe are arranged on one side of the outer shell, an air outlet pipe and a water outlet pipe are arranged on the other side of the outer shell, the air inlet pipe and the air outlet pipe are communicated with the inner shell, and the water inlet pipe and the water outlet pipe are communicated with the water cooling.

Further, the open end of the gas protection cover is provided with a high temperature resistant flexible pad.

Furthermore, a rectangular boss is processed at the end part of the sliding strip, an opening penetrating through the connecting plate is processed at the end part of the connecting plate, the rectangular boss is embedded in the opening, and the rectangular boss is movably connected with the opening through at least two bolts.

Furthermore, an elastic rope and a hook ring are arranged on the side face of the vertical plate facing the air supply area at intervals, and a hook matched with the hook ring is arranged at the end part of the elastic rope.

The utility model discloses when using, it is steady to place the base metal that will weld earlier, the welder of plasma welding machine has been adjusted, work before welding is ready will the utility model discloses push away to one side of base metal, open the cylinder, the piston rod of cylinder drives the flat board, draw runner and gaseous safety cover go up and down together, the cylinder is closed when the uncovered end shield of gaseous safety cover is on the base metal at the welder back, then begin to execute welding, start motor when executing welding, the cooperation through gear and sliding tooth makes the draw runner slide in dovetail type spout during the output shaft of motor rotates, the slip speed that keeps the draw runner is unanimous with welder's execution welding speed, just can make the safety cover be located all the time and execute the back at welding position and accomplish until the weldment work, control motor reverse rotation again at last, with the draw runner reset can. Therefore, in the whole welding process, the protective cover does not need to be manually supported, the labor force is reduced, the possibility of scalding personnel is avoided, and the safety performance is improved; secondly, because of no manual work, the whole process is operated by a machine, the welding quality is stable, the welding efficiency is higher, and the high efficiency and high quality performance of plasma welding can be fully exerted; additionally, the utility model discloses in set up two safety covers, can conveniently change according to the type of welding seam, the suitability is stronger. The utility model discloses the security is high, and convenient operation is favorable to improving welding quality and efficiency, has apparent economic value and social value.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is a left side view structure diagram of the present invention;

fig. 4 is a schematic structural diagram of the gas protecting cover 15, the diagonal rod 14 and the connecting plate 13 according to the present invention.

In the figure: 1-base, 2-universal wheel, 3-vertical plate, 4-argon tank, 5-air cylinder, 6-sleeve, 7-upright post, 8-flat plate, 9-slide bar, 10-sliding tooth, 11-motor, 12-gear, 13-connecting plate, 14-diagonal rod, 15-air protective cover, 16-bottom plate, 17-telescopic rod, 18-spring, 19-cover body, 20-outer shell, 21-inner shell, 22-water cooling cavity, 23-air inlet pipe, 24-water inlet pipe, 25-air outlet pipe, 26-water outlet pipe, 27-high temperature resistant flexible pad, 28-rectangular boss, 29-opening, 30-elastic rope, 31-hook ring, 32-hook, 33-supporting strip and 34-sliding block.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited in any way, and any changes or improvements based on the present invention are all within the protection scope of the present invention.

As shown in figures 1-4, the utility model comprises a base 1 and a universal wheel 2 installed at the bottom of the base 1, wherein a vertical plate 3 is arranged at the middle part of the base 1, the vertical plate 3 divides the base 1 into two regions, one of which is a gas supply region, the other is a tooling region, an argon tank 4 is arranged in the gas supply region, the argon tank 4 is an argon storage container such as the existing argon tank, a vertical frame and a cylinder 5 are arranged in the tooling region, the vertical frame comprises four sleeves 6, the four sleeves 6 are arranged in a rectangular structure, the lower end of the sleeve 6 is fixed on the base 1, a stand 7 is inserted at the upper end of the sleeve 6, a flat plate 8 is connected between the four stand 7 through a connecting rod, the cylinder 5 is positioned below the flat plate 8, the cylinder body of the cylinder 5 is fixed on the base 1, the piston rod of the cylinder 5 is connected with the lower surface of the flat plate 8, a dovetail chute is processed on the upper surface of the flat plate, sliding mounting has a draw runner 9 in the dovetail spout, the upper surface of draw runner 9 has a plurality of smooth teeth 10 along the length direction processing of draw runner 9, be provided with motor 11 on the flat board 8, install gear 12 on the output shaft of motor 11, gear 12 and smooth tooth 10 intermeshing, the one end of draw runner 9 is connected with connecting plate 13 detachably, be connected with two gas safety covers 15 that the structure is the same respectively through two down tube 14 on the connecting plate 13, gas safety cover 15 is current structure, gas safety cover 15 is the open hollow cuboid structure in one side, the length direction of one of them gas safety cover 15 is parallel with the length direction of draw runner 9, the length direction of another gas safety cover 15 is perpendicular with the length direction of draw runner 9.

The utility model discloses when using, it is steady to place the base metal that will weld earlier, the welder of plasma welder has been adjusted, work before welding is ready will the utility model discloses push away to one side of base metal, open cylinder 5, the piston rod of cylinder 5 drives dull and stereotyped 8, draw runner 9 and gas safety cover 15 go up and down together, close cylinder 5 when the uncovered end shield of gas safety cover 15 is on the base metal at the welder back, then begin to weld, start motor 11 when welding, make draw runner 9 slide in dovetail type spout through gear 12 and the cooperation of sliding tooth 10 when motor 11's output shaft rotates, the sliding speed that keeps draw runner 9 is unanimous with welder's the speed of welding, just can make gas safety cover 15 be located all the time and weld the back at position and accomplish until weldment work, control motor 11 reverse rotation again at last, it can to reset draw runner 9. Therefore, in the whole welding process, the gas protection cover 15 does not need to be supported manually, so that the possibility of scalding personnel is avoided while labor force is reduced, and the safety performance is improved; secondly, because of no manual work, the whole process is operated by a machine, the welding quality is stable, the welding efficiency is higher, and the high efficiency and high quality performance of plasma welding can be fully exerted; in addition, the utility model discloses in set up two length direction vertical gas protection covers 15, can conveniently change according to the type of welding seam, the suitability is stronger, for example, when carrying out the longitudinal joint welding of barrel, can use that length direction and the parallel gas protection cover 15 of length direction of draw runner 9, when welding, the barrel keeps motionless, welder and the gas protection cover 15 syntropy move at the same speed; on the contrary, when the circular seam welding of the cylinder is carried out, the other gas protection cover 15 is used, when the welding is carried out, the cylinder rotates on the roller at a constant speed, and the welding gun and the gas protection cover 15 are not moved.

Preferably, the included angle between the two inclined rods 14 is 90 degrees, and other angles can be selected according to actual needs.

The gas protection cover 15 comprises a bottom plate 16 and a cover body 19, wherein the bottom plate 16 is fixed at the end part of the inclined rod 14, a plurality of telescopic rods 17 are arranged between the bottom part of the cover body 19 and the bottom plate 16, and springs 18 are arranged on the telescopic rods 17. The cover body 19 is pressed by the spring 18, so that the open end of the cover body 19 can be always tightly attached to the surface of the base metal, and the protection performance of the gas protection cover 15 on the welding seam can be improved.

The cover body 19 comprises an outer shell 20 and an inner shell 21, a closed water-cooling cavity 22 is enclosed between the outer shell 20 and the inner shell 21, an air inlet pipe 23 and an water inlet pipe 24 are arranged on one side of the outer shell 20, an air outlet pipe 25 and an water outlet pipe 26 are arranged on the other side of the outer shell, the air inlet pipe 23 and the air outlet pipe 25 are communicated with the inner shell 21, and the water inlet pipe 24 and the water outlet pipe 26 are communicated with the water. In the use, the inside of argon gas follow intake pipe 23 entering inner shell, discharge from outlet duct 25, and simultaneously, cooling water gets into water-cooling chamber 22 from inlet tube 24, discharge from outlet pipe 26 after absorbing the heat on the inner shell 21, wherein water-cooling chamber 22's effect is, absorb the heat on outer shell 20 and the inner shell 21 on the one hand, prevent that outer shell 20 and inner shell 21 warp because of the high temperature corrosion, damage, increase the life of the cover body 19, on the other hand is through the heat that absorbs the welding seam fast and give off, accelerate the cooling rate of welding seam, prevent the high temperature oxidation of welding seam.

The open end of the gas-protecting cover 15 is provided with a high-temperature-resistant flexible mat 27. The high temperature resistant flexible pad 27 can be made of high temperature resistant flexible material, and when the high temperature resistant flexible pad 27 is used, the high temperature resistant flexible pad 27 is tightly attached to the surface of the base material, so that the cover body 19 of the gas protection cover 15 can be separated from the base material to prevent the cover body 19 from damaging the surface of the base material in the moving process, and the sealing performance between the cover body 19 and the surface of the base material can be increased to prevent argon from escaping from the gap between the cover body 19 and the surface of the base material to cause the waste of the argon.

The end of the slide bar 9 is provided with a rectangular boss 28, the end of the connecting plate 13 is provided with an opening 29 penetrating through the connecting plate 13, the rectangular boss 28 is embedded in the opening 29, and the rectangular boss 28 and the opening 29 are movably connected through at least two bolts. In the process of mounting and dismounting the slide bar 9 and the connecting plate 13, only bolts need to be screwed or loosened, and the operation is convenient and fast.

An elastic rope 30 and a hook ring 31 are arranged on the side surface of the vertical plate 3 facing the air supply area at intervals, and a hook 32 matched with the hook ring 31 is arranged at the end part of the elastic rope 30. In the welding process, the elastic rope 30 can be wound on the argon gas tank 4, and the hook 32 is hung in the hook ring 31 to be fixed, so that the argon gas tank 4 can be prevented from being inclined and toppled, and safety accidents are avoided.

For increasing the utility model discloses well dull and stereotyped 8's stability can set up support bar 33 at dull and stereotyped 8's tip, processes vertical slide rail on the riser 3 side towards the frock district, then the tip at support bar 33 sets up and slide rail matched with slider 34, and dull and stereotyped 8 is connected with riser 3 through the support bar when the oscilaltion like this, has higher stability ability.

Claims

1. The utility model provides a back argon protection frock for plasma welding which characterized in that: the device comprises a base (1) and universal wheels (2) arranged at the bottom of the base (1), wherein a vertical plate (3) is arranged in the middle of the base (1), the vertical plate (3) divides the base (1) into two areas, one of the two areas is a gas supply area, the other area is a tooling area, an argon gas tank (4) is placed in the gas supply area, a stand and a cylinder (5) are arranged in the tooling area, the stand comprises four sleeves (6), the four sleeves (6) are arranged in a rectangular structure, the lower ends of the sleeves (6) are fixed on the base (1), stand columns (7) are inserted into the upper ends of the sleeves (6), a flat plate (8) is connected between the four stand columns (7) through connecting rods, the cylinder (5) is positioned below the flat plate (8), the cylinder body of the cylinder (5) is fixed on the base (1), and the piston rod of the cylinder (5) is connected with,

the upper surface processing of dull and stereotyped (8) has a dovetail spout, and the length direction of dovetail spout is parallel with the length direction of dull and stereotyped (8), and slidable mounting has draw runner (9) in the dovetail spout, and the upper surface of draw runner (9) has a plurality of smooth teeth (10) along the length direction processing of draw runner (9), be provided with motor (11) on dull and stereotyped (8), install gear (12) on the output shaft of motor (11), gear (12) and smooth tooth (10) intermeshing, the one end of draw runner (9) is connected with connecting plate (13) detachablely, is connected with two gas protection covers (15) that the structure is the same respectively through two down tube (14) on connecting plate (13), gas protection cover (15) are the open hollow structure in one side, and the length direction of one of them gas protection cover (15) is parallel with the length direction of draw runner (9), the length direction of the other gas protection cover (15) is vertical to the length direction of the slide bar (9).

2. The argon back protection tool for plasma welding as claimed in claim 1, wherein an included angle between the two inclined rods (14) is 90 °.

3. The back argon gas protection tool for plasma welding according to claim 1, wherein the gas protection cover (15) comprises a bottom plate (16) and a cover body (19), the bottom plate (16) is fixed at the end of the inclined rod (14), a plurality of telescopic rods (17) are arranged between the bottom of the cover body (19) and the bottom plate (16), and springs (18) are mounted on the telescopic rods (17).

4. The back argon protection tool for plasma welding according to claim 3, wherein the cover body (19) comprises an outer shell (20) and an inner shell (21), a closed water cooling cavity (22) is defined between the outer shell (20) and the inner shell (21), an air inlet pipe (23) and an air inlet pipe (24) are arranged on one side of the outer shell (20), an air outlet pipe (25) and an air outlet pipe (26) are arranged on the other side of the outer shell (20), the air inlet pipe (23) and the air outlet pipe (25) are communicated with the inner shell (21), and the air inlet pipe (24) and the water outlet pipe (26) are communicated with the water cooling cavity (22).

5. The back argon protection tool for plasma welding according to claim 1, characterized in that the open end of the gas protection cover (15) is provided with a high temperature resistant flexible pad (27).

6. The back argon protection tool for plasma welding according to claim 1, wherein a rectangular boss (28) is machined at the end of the slide bar (9), an opening (29) penetrating through the connecting plate (13) is machined at the end of the connecting plate (13), the rectangular boss (28) is embedded in the opening (29), and the rectangular boss (28) and the opening (29) are movably connected through at least two bolts.

7. The back argon protection tool for plasma welding according to claim 1, wherein elastic ropes (30) and hook rings (31) are arranged on the side face of the vertical plate (3) facing the gas supply area at intervals, and hooks (32) matched with the hook rings (31) are arranged at the end parts of the elastic ropes (30).