CN209754236U - TIG welding equipment for circumferential welding - Google Patents
TIG welding equipment for circumferential welding Download PDFInfo
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- CN209754236U CN209754236U CN201920027219.9U CN201920027219U CN209754236U CN 209754236 U CN209754236 U CN 209754236U CN 201920027219 U CN201920027219 U CN 201920027219U CN 209754236 U CN209754236 U CN 209754236U
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Abstract
the utility model discloses a TIG welding equipment of circumferential weld, it includes frame (1), set up motor (2) in frame (1), set up welding room (3) and a plurality of roller support device (4) that set up in order in frame (1) top and turn right from a left side, welding room (3) including frame (5), set up airtight chamber (6) in frame (5), set up in top (7) and the tight mechanism of guide pipe clamp (8) on frame (5) left and right sides respectively, set up observation window (9) and power supply (10) of side around frame (5) respectively, set up in welder (11) at frame (5) top. The utility model has the advantages that: compact structure, alleviate workman intensity of labour, welding precision is high, welding seam homogeneity is high, welder position is adjustable, improves welding efficiency.
Description
Technical Field
The utility model relates to a circular seam welded technical field, especially a circumferential weld TIG welding equipment.
Background
the welding of the guide pipe and the press plug needs to be carried out by adopting TIG welding equipment, and the specific welding steps comprise that a worker firstly inserts one end of the press plug into a pipe orifice at one end of the guide pipe, at the moment, an annular seam is formed between the press plug and the guide pipe, and then the worker utilizes a tungsten electrode of the TIG welding equipment to weld the annular seam, namely, the welding gun for operating the TIG welding equipment is welded along the length direction of the annular seam, and finally the welding of the guide pipe and the press plug is realized.
SUMMERY OF THE UTILITY MODEL
an object of the utility model is to overcome prior art's shortcoming, provide a compact structure, alleviate workman intensity of labour, welding precision height, welding seam homogeneity height, welder position adjustable, improve welding efficiency's TIG welding equipment of girdling.
The purpose of the utility model is realized through the following technical scheme: a kind of ring welding TIG welding equipment, it includes the stander, motor set up in stander, welding chamber and multiple roller support devices set up in stander top and from left to right set up sequentially, the said welding chamber includes the bed plate, set up in closed cavity in the bed plate, set up in the top and guide tube clamping mechanism of the left and right sides of bed plate respectively, set up in observation window and power supply, welding gun set up in top of bed plate of front and back sides of bed plate respectively;
The ejector head comprises a positioning stop block, a bearing hole which is formed in the left end part of the base and communicated with the closed cavity, and a rotating head which is rotatably arranged in the bearing hole through a thrust ball bearing, the positioning stop block is positioned in the closed cavity and fixedly arranged at the right end part of the rotating head, and a circular pit is formed in the positioning stop block;
the guide pipe clamping mechanism comprises a cylinder, a long connecting rod, a short connecting rod, a step hole I which is arranged at the right end part of the machine base and communicated with the sealed cavity, a rotary sleeve is rotatably arranged in a large hole of the step hole I through a rolling bearing, the left end part of the rotary sleeve extends into a small hole of the step hole I, the right end part of the rotary sleeve extends to the outside of the step hole I, a driven gear is fixedly arranged outside the extending end, a hole A, a hole B and a hole C are sequentially arranged in the rotary sleeve from left to right along the axial direction of the rotary sleeve, the diameters of the hole A, the hole B and the hole C are sequentially increased, a movable shaft is slidably arranged in the hole C, the movable shaft consists of a small shaft and a large shaft which are sequentially connected from left to right, a tapered hole is sequentially arranged in the movable shaft from left to right along the axial direction of the movable shaft, a hole D and a hole E are arranged in the tapered hole, a wedge matched with the tapered hole is, the inner diameter of the hole E is larger than that of the hole D, the spring positioned in the hole C is sleeved on the small shaft, one end of the spring is fixedly arranged on a shoulder formed by the small shaft and the large shaft, the other end of the spring is fixedly arranged on a shoulder formed by the hole B and the hole C, an expansion sleeve is fixedly arranged in the hole D, a plurality of openings are uniformly formed in the cylindrical surface of the left end part of the expansion sleeve, the wedge-shaped block is positioned below the expansion sleeve, a first connecting pipe is fixedly arranged in the hole E, a second connecting pipe is fixedly arranged at the other end of the first connecting pipe, the air cylinder is arranged below the machine base, the acting end of a piston rod of the air cylinder is hinged with a long connecting rod, the other end of the long connecting rod is hinged to the second connecting pipe, the short connecting rod is positioned above the long connecting rod, one end of;
the welding gun comprises a base, an adjusting rod, a T-shaped column, a locking nut, a thread sleeve, a connecting column and a tungsten electrode, wherein the base is fixedly arranged at the top of a base, a cavity communicated with a sealed cavity is formed in the base, a through hole communicated with the cavity is formed in the top of the base, a chassis of the T-shaped column is supported on the top surface of the cavity, a stand column of the T-shaped column upwards penetrates through the through hole to be arranged, a step hole II is formed in the top of the stand column, an external thread A is arranged at the upper end of the stand column of the T-shaped column, the locking nut is in threaded connection with the external thread A, an annular step is arranged on the cylindrical surface of the connecting column, the annular step of the connecting column is abutted against the shoulder of the step hole II under the locking force of the locking nut, one end of the connecting column extends into the sealed cavity, the connecting column is provided with a guide hole along the axial direction, an adjusting rod is matched in the guide hole, the end part of the locking screw is pressed against the adjusting rod, the lower end part of the adjusting rod extends into the closed cavity, a tungsten electrode is fixedly arranged on the extending end of the adjusting rod, the cylindrical surface of the base is in threaded connection with four adjusting screws, the four adjusting screws are pressed against the chassis of the T-shaped column, the two adjusting screws positioned on the front side and the rear side are symmetrically arranged in the front-back direction, and the two adjusting screws positioned on the left side and the right side are symmetrically arranged;
And a driving gear is arranged on an output shaft of the motor and is meshed with a driven gear.
the inner diameter of the expansion sleeve is larger than or equal to the outer diameter of the guide tube.
The expansion sleeve and the rotary sleeve are coaxially arranged.
The cylinder is horizontally arranged and fixedly arranged at the bottom of the machine base.
The left end of the base is provided with an air hole which is L-shaped, one end of the air hole is communicated with the sealed cavity, the other end of the air hole is provided with a threaded hole, and the threaded hole is in threaded connection with a plug.
The roller support device comprises an oil cylinder and a guide wheel, the oil cylinder is vertically and fixedly arranged on the rack, and the guide wheel is rotatably arranged on the acting end of a piston rod of the oil cylinder.
The utility model has the advantages of it is following: the utility model discloses compact structure, alleviate workman intensity of labour, welding precision height, welding seam homogeneity height, welder position are adjustable, improve welding efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic structural view of a middle welding chamber of the present invention;
FIG. 4 is a right side view of FIG. 3;
FIG. 5 is a schematic view of a torch;
FIG. 6 is a schematic view of a welding operation;
FIG. 7 is a schematic view of the positioning block;
fig. 8 is a schematic structural view of the expansion sleeve.
Detailed Description
The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:
As shown in fig. 1 ~ 8, a TIG welding equipment for circumferential welding, it includes frame 1, set up motor 2 in frame 1, set up in frame 1 top and from left to right welding chamber 3 and a plurality of roller support device 4 that set up in order, welding chamber 3 includes frame 5, sets up airtight chamber 6 in frame 5, sets up top 7 and guide tube clamping mechanism 8 in frame 5 left and right sides respectively, sets up viewing window 9 and power supply 10 in frame 5 front and back side respectively, sets up the welder 11 at frame 5 top.
the top 7 includes location dog 12, set up in 5 left end portions of frame and with the dead chamber 6 bearing hole of intercommunication, through thrust ball bearing 13 rotatory mounting in the rotating head 14 of bearing hole, location dog 12 is located dead chamber 6 and sets firmly in the right-hand member portion of rotating head 14, sets up circular pit 15 in the dog 12 of location.
The guide pipe clamping mechanism 8 comprises an air cylinder 16, a long connecting rod 17, a short connecting rod 18 and a step hole I19 which is arranged at the right end part of the machine base 5 and communicated with the sealed cavity 6, a rotary sleeve 21 is rotatably arranged in a large hole of the step hole I19 through a rolling bearing 20, the left end part of the rotary sleeve 21 extends into a small hole of the step hole I19, the right end part of the rotary sleeve 21 extends to the outside of the step hole I19, a driven gear 22 is fixedly arranged at the outside of the extending end, a hole A23, a hole B24 and a hole C25 are sequentially arranged in the rotary sleeve 21 from left to right along the axial direction of the rotary sleeve, the diameters of the hole A23, the hole B24 and the hole C25 are sequentially increased, a movable shaft is slidably arranged in the hole C25, the movable shaft is composed of a small shaft 26 and a large shaft 27 which are sequentially connected from left to right, a tapered hole 28, a hole D29 and a hole E30 are sequentially arranged in the movable shaft from left to right along the axial direction of, the left end face of the wedge block 31 abuts against a shoulder formed by a hole A23 and a hole B24, the inner diameter of a hole E30 is larger than the inner diameter of a hole D29, a spring 32 positioned in the hole C25 is sleeved on the small shaft 26, one end of the spring 32 is fixedly arranged on the shoulder formed by the small shaft 26 and the large shaft 27, the other end of the spring is fixedly arranged on the shoulder formed by a hole B24 and a hole C25, an expansion sleeve 33 is fixedly arranged in the hole D29, a plurality of openings 34 are uniformly formed in the cylindrical surface of the left end part of the expansion sleeve 33, the wedge block 31 is positioned below the expansion sleeve 33, a first connecting pipe 35 is fixedly arranged in the hole E30, the other end of the first connecting pipe 35 is fixedly provided with a second connecting pipe 36, the air cylinder 16 is arranged below the engine base 5, the acting end of a piston rod of the air cylinder 16 is hinged with a long connecting rod 17, the other end of the long connecting rod 17 is hinged on the second connecting pipe 36, the short connecting rod 18, the other end of the short link 18 is hinged to the long link 17.
The welding gun 11 comprises a base 37, an adjusting rod 38, a T-shaped column 39, a locking nut 40, a thread sleeve 41, a connecting column 42 and a tungsten electrode 43, wherein the base 37 is fixedly arranged at the top of the base 5, a cavity 44 communicated with the sealed cavity 6 is formed in the base 37, a through hole communicated with the cavity 44 is formed in the top of the base 37, a chassis of the T-shaped column 39 is supported on the top surface of the cavity 44, a stand column of the T-shaped column 39 upwards penetrates through the through hole, a step hole II45 is formed in the top of the stand column, an external thread A46 is arranged at the upper end of the stand column of the T-shaped column 39, the locking nut 40 is in threaded connection with the external thread A46, an annular step is arranged on the cylindrical surface of the connecting column 42, the annular step of the connecting column 42 abuts against the shoulder of the step hole II45 under the locking force of the locking nut 40, one end of the, the external thread B47 is in threaded connection with a threaded sleeve 41, the cylindrical surface of the threaded sleeve 41 is in threaded connection with a locking screw 48, the connecting column 42 is provided with a guide hole along the axial direction, an adjusting rod 38 is matched in the guide hole, the end part of the locking screw 48 is pressed against the adjusting rod 38, the lower end part of the adjusting rod 38 extends into the sealed cavity 6, the extending end of the adjusting rod 38 is fixedly provided with a tungsten electrode 43, the cylindrical surface of the base 37 is in threaded connection with four adjusting screws 49, the four adjusting screws 49 are pressed against the chassis of the T-shaped column 39, the two adjusting screws 49 on the front side and the rear side are symmetrically arranged in the front-back direction, and the two adjusting screws 49 on the;
the output shaft of the motor 2 is provided with a driving gear which is meshed with the driven gear 22.
the inner diameter of the expansion sleeve 33 is greater than or equal to the outer diameter of the guide tube 50. The expansion sleeve 33 is arranged coaxially with the rotary sleeve 21. The cylinder 16 is horizontally arranged and fixedly arranged at the bottom of the machine base 5. An air hole 51 is formed in the left end portion of the base 5, the air hole 51 is L-shaped, one end of the air hole 51 is communicated with the sealed cavity 6, a threaded hole is formed in the other end of the air hole 51, and a plug 52 is connected to the threaded hole in a threaded mode.
The roller support device 4 comprises an oil cylinder and a guide wheel, the oil cylinder is vertically and fixedly arranged on the rack 1, and the guide wheel is rotatably arranged on the acting end of a piston rod of the oil cylinder.
The welding method of the TIG welding equipment for circumferential welding comprises the following steps:
S1, pressing a press plug into the hole at the left end of the guide tube 50; supporting the guide tube 50 on the guide wheel;
S2, sequentially penetrating a press plug in the guide tube 50 through the second connecting tube 36, the first connecting tube 35, the hole E30, the expansion sleeve 33, the tapered hole 28, the hole B24, the hole A23 and the closed cavity 6, and finally pressing the press plug in the circular pit 15, so that the guide tube and the press plug are positioned;
S3, clamping of the guide tube: the piston rod of the control cylinder 16 extends out, the piston rod drives the long connecting rod 17 to move upwards, the long connecting rod 17 drives the second connecting pipe 36 to move leftwards, the second connecting pipe 36 drives the first connecting pipe 35 to move leftwards, the first connecting pipe 35 drives the movable shaft to move leftwards, the spring 32 is gradually compressed, the movable shaft drives the wedge block 31 to move upwards gradually in the leftward movement process due to the fact that the tapered hole 28 is matched with the wedge block 31, when the expansion sleeve 33 is located above the wedge block 31 to move upwards, the wedge block 31 tightly holds the expansion sleeve 33 in the radial direction, the expansion sleeve 33 further holds the guide pipe 50, and clamping of the guide pipe is finally achieved;
S4, rotation of the guide tube: the motor 2 is turned on, the motor 2 drives the driving gear to rotate, the driving gear drives the driven gear 22 to rotate, the driven gear 22 drives the rotating sleeve 21 to rotate, and the guide pipe is limited by the movable shaft, so that the guide pipe synchronously rotates, and the rotation of the guide pipe is realized;
S5, adjusting the position of the tungsten electrode and the annular gap, wherein the adjusting comprises adjusting the horizontal direction of the tungsten electrode, adjusting the front and back direction of the tungsten electrode and adjusting the up and down direction of the tungsten electrode;
the tungsten electrode horizontal direction adjustment method comprises the following steps: loosening the two horizontal adjusting screws 49, wherein the bottom plate of the T-shaped column 39 can move horizontally in the cavity 44, and when the tungsten electrode 43 is adjusted to be right above the annular gap, tightening the two horizontal adjusting screws 49 so as to adjust the position of the tungsten electrode in the horizontal direction;
the step of adjusting the front and back direction of the tungsten electrode comprises the following steps: the front and rear adjusting screws 49 are unscrewed, the chassis of the T-shaped column 39 can move back and forth in the cavity 44 at the moment, and when the tungsten electrode 43 is adjusted to be right above the annular gap, the front and rear adjusting screws 49 are screwed down, so that the position of the tungsten electrode in the front and rear direction is adjusted;
the step of adjusting the tungsten electrode in the up-and-down direction comprises the following steps: rotating the threaded sleeve 41, axially moving the threaded sleeve 41 on the external thread B47, axially moving the adjusting rod 38 along the guide hole, screwing the locking screw 48 when the tungsten electrode 43 is adjusted to be right above the annular gap, thereby adjusting the position of the tungsten electrode in the vertical direction, and observing the position of the tungsten electrode through the observation window during adjustment;
S6, opening the plug 52, introducing helium into the closed cavity 6 through the air hole 51, and closing the plug 52 after filling for a period of time;
S7, welding the annular seam, wherein the power supply 10 supplies power to the tungsten electrode 43, an electric arc is generated between the tungsten electrode 43 and the guide tube 50 and the press plug, the electric arc melts materials, the arc welding can be carried out along the circumferential direction along with the rotation of the guide tube, and the annular seam can be welded after the guide tube rotates for one circle;
S8, when a welded product is taken out, the piston rod of the control cylinder 16 retracts, the piston rod drives the long connecting rod 17 to move downwards, at the moment, the second connecting pipe 36 moves rightwards, the second connecting pipe 36 drives the first connecting pipe 35 to move rightwards, the first connecting pipe 35 drives the movable shaft to move rightwards, meanwhile, under the restoring force of the spring 32, the pushing force of the movable shaft to the right is further increased, the expansion sleeve 33 is made to move rightwards, at the moment, the wedge block 31 is separated from the guide pipe 50, the wedge block 31 does not tightly hold the guide pipe, and at the moment, the welded product can be taken out. Therefore, in the whole welding process, compared with the traditional welding mode, the manual operation of a welding gun is not needed for welding, and the manual rotation of the guide pipe is not needed for welding, so that the labor intensity of workers is greatly reduced, and the welding efficiency of the guide pipe and the press plug is further improved. In addition, the welding equipment realizes that the guide pipe is rotated at a constant speed while the annular seam is welded, ensures the uniformity of the seam, improves the quality of the seam and further ensures the connection strength of the product.
Claims (5)
1. The utility model provides a circumferential weld TIG welding equipment which characterized in that: the welding machine comprises a rack (1), a motor (2) arranged on the rack (1), a welding chamber (3) and a plurality of roller support devices (4), wherein the welding chamber (3) and the roller support devices (4) are arranged at the top of the rack (1) and are sequentially arranged from left to right, the welding chamber (3) comprises a base (5), a sealed cavity (6) arranged in the base (5), a top head (7) and a guide pipe clamping mechanism (8) which are respectively arranged at the left side and the right side of the base (5), an observation window (9) and a power supply source (10) which are respectively arranged at the front side and the rear side of the base (5), and a welding gun (11);
The ejector head (7) comprises a positioning stop block (12), a bearing hole which is formed in the left end part of the base (5) and communicated with the closed cavity (6), and a rotating head (14) which is rotatably arranged in the bearing hole through a thrust ball bearing (13), the positioning stop block (12) is positioned in the closed cavity (6) and fixedly arranged at the right end part of the rotating head (14), and a circular pit (15) is formed in the positioning stop block (12);
the guide pipe clamping mechanism (8) comprises an air cylinder (16), a long connecting rod (17), a short connecting rod (18) and a step hole I (19) which is arranged at the right end part of the base (5) and communicated with the sealed cavity (6), a rotary sleeve (21) is rotatably arranged in a large hole of the step hole I (19) through a rolling bearing (20), the left end part of the rotary sleeve (21) extends into a small hole of the step hole I (19), the right end part of the rotary sleeve (21) extends to the outside of the step hole I (19), a driven gear (22) is fixedly arranged outside the extending end, a hole A (23), a hole B (24) and a hole C (25) are sequentially formed in the rotary sleeve (21) from left to right along the axial direction of the rotary sleeve, the diameters of the hole A (23), the hole B (24) and the hole C (25) are sequentially increased, a movable shaft is slidably arranged in the hole C (25), and the movable shaft is composed of a small shaft (26) and a large shaft (27) which are sequentially, a tapered hole (28), a hole D (29) and a hole E (30) are sequentially formed in the movable shaft from left to right along the axial direction of the movable shaft, a wedge block (31) matched with the tapered hole (28) is placed in the tapered hole (28), the left end face of the wedge block (31) abuts against a shoulder formed by the hole A (23) and the hole B (24), the inner diameter of the hole E (30) is larger than the inner diameter of the hole D (29), a spring (32) located in the hole C (25) is sleeved on a small shaft (26), one end of the spring (32) is fixedly arranged on the shoulder formed by the small shaft (26) and a large shaft (27), the other end of the spring is fixedly arranged on the shoulder formed by the hole B (24) and the hole C (25), an expansion sleeve (33) is fixedly arranged in the hole D (29), a plurality of openings (34) are uniformly formed in the cylindrical surface of the left end of the expansion sleeve (33), the wedge block (31) is located below the sleeve (33), and a first connecting pipe (35) is fixedly arranged in the hole E (30), the other end of the first connecting pipe (35) is fixedly provided with a second connecting pipe (36), the air cylinder (16) is arranged below the base (5), the action end of a piston rod of the air cylinder (16) is hinged with a long connecting rod (17), the other end of the long connecting rod (17) is hinged on the second connecting pipe (36), the short connecting rod (18) is positioned above the long connecting rod (17), one end of the short connecting rod (18) is fixedly arranged at the right end part of the base (5), and the other end of the short connecting rod (18) is hinged on the long connecting rod (17);
The welding gun (11) comprises a base (37), an adjusting rod (38), a T-shaped column (39), a locking nut (40), a threaded sleeve (41), a connecting column (42) and a tungsten electrode (43), wherein the base (37) is fixedly arranged at the top of the base (5), a cavity (44) communicated with the sealed cavity (6) is formed in the base (37), a through hole communicated with the cavity (44) is formed in the top of the base (37), a chassis of the T-shaped column (39) is supported on the top surface of the cavity (44), a stand column of the T-shaped column (39) upwards penetrates through the through hole, a step hole II (45) is formed in the top of the stand column, an external thread A (46) is arranged at the upper end of the stand column of the T-shaped column (39), the locking nut (40) is in threaded connection with the external thread A (46), an annular step is arranged on the cylindrical surface of the connecting column (42), the annular step of the connecting column (42) abuts against the shoulder of the step hole, one end of the connecting column (42) extends into the sealed cavity (6), an external thread B (47) is arranged on the cylindrical surface of the other end of the connecting column (42), a thread sleeve (41) is connected on the external thread B (47) in a threaded manner, a locking screw (48) is connected on the cylindrical surface of the thread sleeve (41), a guide hole is formed in the connecting column (42) along the axial direction of the connecting column, an adjusting rod (38) is matched in the guide hole, the end part of the locking screw (48) is pressed against the adjusting rod (38), the lower end part of the adjusting rod (38) extends into the sealed cavity (6), a tungsten electrode (43) is fixedly arranged on the extending end, four adjusting screws (49) are in threaded connection with the cylindrical surface of the base (37), the four adjusting screws (49) are pressed against the chassis of the T-shaped column (39), the two adjusting screws (49) positioned on the front side and the rear side are symmetrically arranged in the front-and-rear direction, and the two adjusting screws (49) positioned on the left side and the right side are symmetrically arranged in the left-and-right direction;
The roller support device is characterized in that a driving gear is mounted on an output shaft of the motor (2), the driving gear is meshed with a driven gear (22), the roller support device (4) comprises an oil cylinder and a guide wheel, the oil cylinder is vertically and fixedly mounted on the rack (1), and the guide wheel is rotatably mounted on an acting end of a piston rod of the oil cylinder.
2. A TIG welding apparatus for ring welding according to claim 1, wherein: the inner diameter of the expansion sleeve (33) is larger than or equal to the outer diameter of the guide tube (50).
3. a TIG welding apparatus for ring welding according to claim 1, wherein: the expansion sleeve (33) is arranged coaxially with the rotary sleeve (21).
4. a TIG welding apparatus for ring welding according to claim 1, wherein: the air cylinder (16) is horizontally arranged and fixedly arranged at the bottom of the machine base (5).
5. a TIG welding apparatus for ring welding according to claim 1, wherein: an air hole (51) is formed in the left end portion of the base (5), the air hole (51) is L-shaped, one end of the air hole (51) is communicated with the sealed cavity (6), a threaded hole is formed in the other end of the air hole, and a plug (52) is connected to the threaded hole in a threaded mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920027219.9U CN209754236U (en) | 2019-01-08 | 2019-01-08 | TIG welding equipment for circumferential welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920027219.9U CN209754236U (en) | 2019-01-08 | 2019-01-08 | TIG welding equipment for circumferential welding |
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| Publication Number | Publication Date |
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| CN209754236U true CN209754236U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920027219.9U Active CN209754236U (en) | 2019-01-08 | 2019-01-08 | TIG welding equipment for circumferential welding |
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| CN (1) | CN209754236U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514035A (en) * | 2019-01-08 | 2019-03-26 | 成都瑞勃电气实业有限公司 | A kind of boxing TIG weld equipment and welding method |
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2019
- 2019-01-08 CN CN201920027219.9U patent/CN209754236U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109514035A (en) * | 2019-01-08 | 2019-03-26 | 成都瑞勃电气实业有限公司 | A kind of boxing TIG weld equipment and welding method |
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