CN106392428B - Automatic welding machine for cylinder of automobile muffler - Google Patents
Automatic welding machine for cylinder of automobile muffler Download PDFInfo
- Publication number
- CN106392428B CN106392428B CN201611057750.8A CN201611057750A CN106392428B CN 106392428 B CN106392428 B CN 106392428B CN 201611057750 A CN201611057750 A CN 201611057750A CN 106392428 B CN106392428 B CN 106392428B
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- CN
- China
- Prior art keywords
- welding
- guide rail
- die
- moving
- frame body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003466 welding Methods 0.000 title claims abstract description 139
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000003054 catalyst Substances 0.000 description 11
- 238000004806 packaging method and process Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/006—Safety devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0241—Attachments between the welding or cutting element and the carriage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses an automatic welding machine for a cylinder body of an automobile muffler, which comprises a welding frame body; the cylinder fixing device is arranged on the welding frame body and comprises a fixing die, a moving die and a die moving mechanism which are correspondingly arranged, arc-shaped grooves which are matched with the curved surfaces of the outer walls of the welded cylinders are respectively arranged on the corresponding surfaces of the fixing die and the moving die, the fixing die is fixed on the welding frame body, and the moving die is connected with the welding frame body through the die moving mechanism; automatic welding guide rail position adjustment support includes that one end is fixed the X axle guide rail on the welding frame body and the slider that is connected with X axle guide rail sliding fit and the welding arm of setting on the slider: the sliding block is fixedly connected with the automatic welding guide rail, the automatic travel device and the Y-axis guide rail in sequence, and the welding gun holder is connected with the Y-axis guide rail in a sliding fit manner. The welding machine has the characteristics of high automation degree, simplicity in operation, high production efficiency, high welding quality and the like.
Description
Technical Field
The invention relates to an automatic welding machine for a cylinder body of an automobile muffler.
Background
The automobile catalyst is one kind of automobile part and is one important part of automobile exhaust system comprising exhaust manifold, exhaust pipe, catalyst, exhaust temperature sensor, silencer, tail pipe, etc. The automotive catalyst includes a catalyst substrate and a cylindrical packing housing surrounding the catalyst substrate.
In the manufacturing process of the cylindrical packaging shell of the automobile catalyst, a steel plate is required to be rolled into a cylinder body, then the cylinder body with a gap is welded, at present, when the cylinder body is welded, manual welding is adopted, the cylinder body to be welded is required to be fixed, then the manual welding is carried out, the production efficiency is low, the production cost is high, the labor intensity of a welder is high, the welding quality is greatly influenced by human factors, the sealing performance is difficult to guarantee, and the sealing performance is influenced; once the cylindrical packaging shell of the automobile catalyst has poor sealing performance, the quality of a catalyst matrix and the purification effect of automobile exhaust are adversely affected.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic welding machine for a cylinder body of an automobile muffler, which has the characteristics of high automation degree, simplicity in operation, high production efficiency, high welding quality and the like.
In order to solve the technical problems, the invention adopts the following technical scheme:
an automatic welding machine for a cylinder body of an automobile muffler comprises
Welding a frame body;
the cylinder fixing device is arranged on the welding frame body, the cylinder fixing device comprises a fixing die, a moving die and a die moving mechanism which are correspondingly arranged, arc grooves matched with the curved surfaces of the outer walls of the welded cylinders are respectively formed in the corresponding surfaces of the fixing die and the moving die, the fixing die is fixed on the welding frame body, the moving die is connected with the welding frame body through the die moving mechanism, the die moving mechanism comprises a moving die sliding rail and a moving die moving positioning structure, the moving die sliding rail is radially arranged on the welding frame body along the arc grooves, the moving die is connected with the moving die sliding rail in a sliding fit manner, and the moving die moving positioning structure is arranged between the moving die and the welding frame body; so that the movable mould approaches to the fixed mould along the sliding rail of the movable mould, and the welded cylinder is clamped and fixed;
the automatic welding guide rail position adjusting bracket comprises an X-axis guide rail, a sliding block and a welding arm, wherein one end of the X-axis guide rail is fixed on a welding frame body, the sliding block is connected with the X-axis guide rail in a sliding mode, the welding arm is arranged on the sliding block, the X-axis guide rail is perpendicular to the axes of a movable die sliding rail and an arc groove, the welding arm comprises a Y-axis guide rail, an automatic welding guide rail, an automatic travel device capable of reciprocating along the automatic welding guide rail and a welding gun holder, the Y-axis guide rail is perpendicular to the axes of the X-axis guide rail and the arc groove, the automatic welding guide rail is perpendicular to the X-axis guide rail, and is parallel to the axes of the arc groove, and the welding arm is one of the following two connecting modes: the sliding block is fixedly connected with the automatic welding guide rail, the automatic travel device and the Y-axis guide rail in sequence, and the welding gun holder is connected with the Y-axis guide rail in a sliding fit manner; and two,: the slide block is fixedly connected with the Y-axis guide rail, the automatic welding guide rail is connected with the Y-axis guide rail in a sliding fit manner, and the welding gun holder is fixedly connected with the automatic travel device. In the connection mode of the two, the welding gun clamped by the welding gun clamp is aligned with the welding seam of the cylinder clamped and fixed by the cylinder fixing device by adjusting the position of the sliding block on the X-axis guide rail and the distance between the welding gun clamp and the Y-axis guide rail in a sliding fit manner or the distance between the sliding block and the automatic welding guide rail, and the moving stroke of the automatic stroke device capable of reciprocating along the automatic welding guide rail is equivalent to the length of the welding seam, so that the welding track of the welding gun clamped by the welding gun clamp is equivalent to the welding seam of the cylinder.
The axis of the arc-shaped groove is a plumb line.
The movable mould moving and positioning structure comprises a 'one' -shaped push rod, a 'C' -shaped connecting rod and a 'V' -shaped lever, one end of the 'one' -shaped push rod is connected with a rotating shaft of the movable mould, the other end of the 'one' -shaped push rod is connected with a rotating shaft of one end of the 'C' -shaped connecting rod, the other end of the 'C' -shaped connecting rod is connected with a pivot rotating shaft of the 'V' -shaped lever, a resistance point of the 'V' -shaped lever is connected with a rotating shaft of a welding frame body, the axes of the rotating shafts are parallel to the axes of the arc-shaped grooves, a force point of the 'V' -shaped lever moves towards the direction of the fixed mould, and when the movable mould is driven to be close to the fixed mould and clamp a welded cylinder body, the angle formed by the 'C' -shaped connecting rod and the 'V' -shaped lever is a flat angle, so that the welded cylinder body is clamped and fixed.
The automatic travel device capable of reciprocating along the automatic welding guide rail is a motion mechanism controlled by an embedded system.
The fixed die and the movable die are in a plurality of pairs with different specifications, and each fixed die is provided with a detachable fixed connection structure which is matched with the welding frame; each movable die is detachably connected with the die moving mechanism.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in:
according to the invention, the cylinder to be welded is fixed through the cylinder fixing device, the position of the welding gun is adjusted through the automatic welding guide rail position adjusting bracket, so that the gun head of the welding gun is aligned with the welding seam of the cylinder, and the welding seam is automatically welded through the automatic travel device capable of reciprocating along the automatic welding guide rail; the fixed die and the movable die are in a plurality of pairs with different specifications, and each fixed die is provided with a detachable fixed connection structure which is matched with the welding frame; each movable die is detachably connected with the die moving mechanism. According to the different specifications of the catalyst cylindrical packaging shell, different fixed dies and moving dies are selected, and the catalyst cylindrical packaging shell has the characteristics of high automation degree, simplicity in operation, high production efficiency, high welding quality and the like.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the drawings: 1. welding a frame body; 2. fixing a die; 3. moving the mold; 4. a cylinder to be welded; 5. moving a die slide rail; 6. an X-axis guide rail; 7. a slide block; 8. a Y-axis guide rail; 9. automatically welding the guide rail; 10. an automatic travel device; 11. a welding gun clamp holder; 12. a push rod; 13. a "C" shaped connecting rod; 14. v-shaped lever; 15. and welding the protective cover.
Detailed Description
The invention will be described in further detail with reference to the drawings and the specific embodiments.
As can be seen from the embodiment shown in fig. 1, the present embodiment welds a frame body 1;
the cylinder fixing device is arranged on the welding frame body 1, the cylinder fixing device comprises a fixing die 2, a moving die 3 and a die moving mechanism which are correspondingly arranged, arc grooves matched with the curved surfaces of the outer walls of the welded cylinders 4 are respectively formed in the corresponding surfaces of the fixing die 2 and the moving die 3, the fixing die 2 is fixed on the welding frame body 1, the moving die 3 is connected with the welding frame body 1 through the die moving mechanism, the die moving mechanism comprises a moving die sliding rail 5 and a moving die moving positioning structure, the moving die sliding rail 5 is radially arranged on the welding frame body 1 along the arc grooves, the moving die 3 is connected with the moving die sliding rail 5 in a sliding fit manner, and the moving die moving positioning structure is arranged between the moving die 3 and the welding frame body 1; so that the movable mold 3 approaches the fixed mold 2 along the movable mold slide rail 3, thereby clamping and fixing the welded cylinder 4;
the automatic welding guide rail position adjusting bracket comprises an X-axis guide rail 6, a sliding block 7 and a welding arm, wherein one end of the X-axis guide rail 6 is fixed on a welding frame body 1, the sliding block 7 is connected with the X-axis guide rail 6 in a sliding mode, the welding arm is arranged on the sliding block 7, the X-axis guide rail 6 is perpendicular to the axes of a movable die sliding rail 5 and an arc-shaped groove, the welding arm comprises a Y-axis guide rail 8, an automatic welding guide rail 9, an automatic travel device 10 capable of reciprocating along the automatic welding guide rail and a welding gun clamp 11, the Y-axis guide rail 8 is perpendicular to the axes of the X-axis guide rail 6 and the arc-shaped groove, the automatic welding guide rail 9 is perpendicular to the X-axis guide rail 6 and parallel to the axis of the arc-shaped groove, the sliding block 7 is sequentially connected with the automatic welding guide rail 9, the automatic travel device 10 and the Y-axis guide rail 8 in a sliding mode, and the welding gun clamp 11 is connected with the Y-axis guide rail 8 in a sliding mode. In the connection mode of the two, the welding gun clamped by the welding gun clamp is aligned with the welding seam of the cylinder clamped and fixed by the cylinder fixing device by adjusting the position of the sliding block 7 on the X-axis guide rail 6 and the distance between the welding gun clamp 11 and the Y-axis guide rail 8 in a sliding fit manner or the distance between the sliding block 7 and the automatic welding guide rail 9, and the moving stroke of the automatic stroke device capable of reciprocating along the automatic welding guide rail is equivalent to the length of the welding seam, so that the welding track of the welding gun clamped by the welding gun clamp 11 is equivalent to the welding seam of the cylinder.
The axis of the arc-shaped groove is a plumb line so as to realize vertical welding and facilitate operation.
The movable mould moving and positioning structure comprises a 'one' -shaped push rod 12, a 'C' -shaped connecting rod 13 and a 'V' -shaped lever 14, one end of the 'one' -shaped push rod 12 is connected with a rotating shaft of the movable mould, the other end of the 'one' -shaped push rod is connected with a rotating shaft of one end of the 'C' -shaped connecting rod 13, the other end of the 'C' -shaped connecting rod 13 is connected with a pivot rotating shaft of the 'V' -shaped lever 14, a resistance point of the 'V' -shaped lever 14 is connected with a rotating shaft of the welding frame body 1, the axes of the rotating shafts are parallel to the axis of the arc-shaped groove, a force point of the 'V' -shaped lever 14 moves towards the direction of the fixed mould 2, and when the movable mould 3 is driven to be close to the fixed mould 2 and clamp the welded cylinder 4, the angle formed by the 'C' -shaped connecting rod 13 and the 'V' -shaped lever 14 is a flat angle, so that the welded cylinder 4 is clamped and fixed.
The automatic travel device 10 that can reciprocate along the automatic welding guide 9 is a movement mechanism controlled by an embedded system. When the starting button is pressed, the travel motor is started to drive the welding gun head to weld the welding line of the cylinder from one end to the other end, when the welding gun head reaches the other end and finishes welding, the travel switch is triggered to enable the travel motor to be reversed, welding is stopped, and the welding gun head is reset to the welding starting point of the welding line of the cylinder, which is well known in the prior art by the person skilled in the art.
The fixed die 2 and the movable die 3 are in a plurality of pairs with different specifications, and each fixed die 2 is provided with a detachable fixed connection structure which is matched with the welding frame body 1; each movable die 3 is detachably connected with the die moving mechanism.
The connection mode of the welding arm in this embodiment may also be: the sliding block 7 is fixedly connected with the Y-axis guide rail 8, the automatic welding guide rail 9 is connected with the Y-axis guide rail 8 in a sliding fit manner, and the welding gun clamp holder 11 is fixedly connected with the automatic travel device 10, so long as the length of the welding arm can be adjusted so as to enable the welding gun to adjust the radial position of the welded cylinder; the moving die moving and positioning structure and the automatic travel device capable of reciprocating along the automatic welding guide rail 9 can also adopt a piston type actuating mechanism, and the requirement of the function of the piston type actuating mechanism on the position can be realized through the travel of the piston type actuating mechanism.
The operation method of the invention comprises the following steps:
1. according to different specifications of the catalyst cylindrical packaging shell, different fixed dies 2 and different movable dies 3 are selected and installed in place;
2. when the force point of the V-shaped lever 14 is pulled to move towards the fixed die 2 to drive the movable die 3 to be close to the fixed die 2 and clamp the welded cylinder 4, the angle formed by the C-shaped connecting rod 13 and the V-shaped lever 14 is a flat angle, so that the fixed die 2 and the movable die 3 clamp and fix the welded cylinder 4;
3. the position of the welding gun is adjusted through an automatic welding guide rail position adjusting bracket, so that the gun head of the welding gun is aligned to the welding seam of the cylinder;
4. an automatic travel device 10 capable of reciprocating along an automatic welding guide rail 9 is started to weld the cylinder.
Claims (2)
1. An automatic welding machine for a cylinder body of an automobile muffler is characterized in that: comprising
A welding frame body (1);
the cylinder fixing device is arranged on the welding frame body (1), the cylinder fixing device comprises a fixing die (2), a moving die (3) and a die moving mechanism which are correspondingly arranged, arc grooves matched with curved surfaces of the outer wall of the welded cylinder (4) are respectively formed in corresponding surfaces of the fixing die (2) and the moving die (3), the fixing die (2) is fixed on the welding frame body (1), the moving die (3) is connected with the welding frame body (1) through the die moving mechanism, the die moving mechanism comprises a moving die sliding rail (5) and a moving die moving positioning structure, the moving die sliding rail (5) is radially arranged on the welding frame body (1) along the arc grooves, the moving die (3) is connected with the moving die sliding rail (5) in a sliding fit mode, and the moving die moving positioning structure is arranged between the moving die (3) and the welding frame body (1).
The utility model provides an automatic welding guide rail position adjustment support, including one end fix X axle guide rail (6) on welding frame body (1) and with slider (7) that X axle guide rail (6) sliding fit is connected and set up the welding arm on slider (7), X axle guide rail (6) with remove mould slide rail (5) and the axis of arc wall is mutually perpendicular, the welding arm includes Y axle guide rail (8), automatic welding guide rail (9), can follow automatic travel device (10) and welder holder (11) of automatic welding guide rail reciprocating motion, Y axle guide rail (8) with X axle guide rail (6) with the axis of arc wall is mutually perpendicular, automatic welding guide rail (9) with X axle guide rail (6) is mutually perpendicular, and with the axis of arc wall is parallel, the welding arm is one of the following two kinds of connected modes, one of them: the sliding block (7) is fixedly connected with the automatic welding guide rail (9), the automatic travel device (10) and the Y-axis guide rail (8) in sequence, and the welding gun clamp holder (11) is connected with the Y-axis guide rail (8) in a sliding fit manner; and two,: the sliding block (7) is fixedly connected with the Y-axis guide rail (8), the automatic welding guide rail (9) is connected with the Y-axis guide rail (8) in a sliding fit manner, and the welding gun clamp holder (11) is fixedly connected with the automatic travel device (10);
the movable mould moving positioning structure comprises a 'one' -shaped push rod (12), a 'C' -shaped connecting rod (13) and a 'V' -shaped lever (14), one end of the 'one' -shaped push rod (12) is connected with a movable mould rotating shaft, the other end of the 'one' -shaped push rod is connected with one end of the 'C' -shaped connecting rod (13) through a rotating shaft, the other end of the 'C' -shaped connecting rod (13) is connected with a supporting point rotating shaft of the 'V' -shaped lever (14), a resistance point of the 'V' -shaped lever (14) is connected with a rotating shaft of a welding frame body (1), the axes of the rotating shafts are parallel to the axis of the arc-shaped groove, and a force point of the 'V' -shaped lever (14) moves towards the direction of the fixed mould (2) to drive the movable mould (3) to be close to the fixed mould (2) and clamp a welded cylinder (4), and an angle formed by the 'C' -shaped connecting rod (13) and the 'V' -shaped lever (14) is a flat angle;
the automatic travel device (10) capable of reciprocating along the automatic welding guide rail (9) is a motion mechanism controlled by an embedded system;
the fixed dies (2) and the movable dies (3) are in a plurality of pairs with different specifications, and each fixed die (2) is provided with a detachable fixed connection structure which is matched with the welding frame body (1); each movable die (3) is detachably connected with the die moving mechanism.
2. An automotive muffler cylinder automatic welder as defined in claim 1, wherein: the axis of the arc-shaped groove is a plumb line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611057750.8A CN106392428B (en) | 2016-11-27 | 2016-11-27 | Automatic welding machine for cylinder of automobile muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611057750.8A CN106392428B (en) | 2016-11-27 | 2016-11-27 | Automatic welding machine for cylinder of automobile muffler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106392428A CN106392428A (en) | 2017-02-15 |
| CN106392428B true CN106392428B (en) | 2023-12-26 |
Family
ID=58082695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611057750.8A Active CN106392428B (en) | 2016-11-27 | 2016-11-27 | Automatic welding machine for cylinder of automobile muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106392428B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118072538A (en) * | 2024-04-24 | 2024-05-24 | 四川省公路规划勘察设计研究院有限公司 | Intelligent traffic signal device based on remote control |
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|---|---|---|---|---|
| JP2003010974A (en) * | 2001-06-26 | 2003-01-15 | Daiichi Mekatetsuku:Kk | Self-propelling device for automatic welding machine |
| CN201342565Y (en) * | 2009-01-23 | 2009-11-11 | 北京石油化工学院 | Perforated connecting pipe and saddle-shaped seam welding equipment |
| KR20120103429A (en) * | 2011-03-11 | 2012-09-19 | 주식회사 에치에스테크 | Learning type automatic welding device of pipes |
| CN202701566U (en) * | 2012-06-14 | 2013-01-30 | 江苏快达消防设备有限公司 | Inner straight seam automatic welding machine |
| CN204397222U (en) * | 2014-12-23 | 2015-06-17 | 南京南汽冲压件有限公司 | A kind of automotive muffler inner core three automatic welding of circumferential seams device |
| CN206200455U (en) * | 2016-11-27 | 2017-05-31 | 河北海特汽车部件有限公司 | A kind of automobile muffler tube body automatic welding machine |
-
2016
- 2016-11-27 CN CN201611057750.8A patent/CN106392428B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003010974A (en) * | 2001-06-26 | 2003-01-15 | Daiichi Mekatetsuku:Kk | Self-propelling device for automatic welding machine |
| CN201342565Y (en) * | 2009-01-23 | 2009-11-11 | 北京石油化工学院 | Perforated connecting pipe and saddle-shaped seam welding equipment |
| KR20120103429A (en) * | 2011-03-11 | 2012-09-19 | 주식회사 에치에스테크 | Learning type automatic welding device of pipes |
| CN202701566U (en) * | 2012-06-14 | 2013-01-30 | 江苏快达消防设备有限公司 | Inner straight seam automatic welding machine |
| CN204397222U (en) * | 2014-12-23 | 2015-06-17 | 南京南汽冲压件有限公司 | A kind of automotive muffler inner core three automatic welding of circumferential seams device |
| CN206200455U (en) * | 2016-11-27 | 2017-05-31 | 河北海特汽车部件有限公司 | A kind of automobile muffler tube body automatic welding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106392428A (en) | 2017-02-15 |
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