CN108994421B - Thin-wall steel pipe oblique angle welding machine suitable for various pipe diameter specifications - Google Patents
Thin-wall steel pipe oblique angle welding machine suitable for various pipe diameter specifications Download PDFInfo
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- CN108994421B CN108994421B CN201810953563.0A CN201810953563A CN108994421B CN 108994421 B CN108994421 B CN 108994421B CN 201810953563 A CN201810953563 A CN 201810953563A CN 108994421 B CN108994421 B CN 108994421B
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- 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
- B23K9/00—Arc welding or cutting
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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Abstract
The invention relates to a thin-wall steel pipe oblique angle welding machine suitable for various pipe diameter specifications, which comprises a workbench and a welding mechanism arranged on the workbench, wherein the welding mechanism comprises a welding bracket and a welding gun arranged on the welding bracket; the welding machine further comprises a rotary push-pull assembly, wherein the rotary push-pull assembly comprises a rotary shaft, a push-pull shaft, a first support, a tensioning device, a first servo motor and a push-pull assembly; the push-pull assembly comprises a first support and a push-pull oil cylinder, and a push-pull shaft of the push-pull oil cylinder is connected with the thrust bearing through a floating joint; still be equipped with stop device on the first support, stop device includes hand wheel assembly, driving gear, driven gear, spacing lantern ring and external screw thread lantern ring. The welding machine is used for automatically welding steel pipe oblique angles, and can be suitable for steel pipe workpieces with various pipe diameters and improve welding quality.
Description
Technical Field
The invention belongs to the technical field of welding and processing of thin-wall pipes, and particularly relates to a thin-wall steel pipe oblique angle welding machine suitable for various pipe diameter specifications.
Background
The butt welding for thin-wall stainless steel pipe forming in the current market is mainly finished manually, and the problems of low efficiency and unreliable quality exist. In order to solve the problems, the company develops a tensioning device for an automatic pipe welding machine and the automatic pipe welding machine (application number 201711271107X), the invention provides the automatic pipe welding machine, which comprises a transmission mechanism and a tensioning device for the automatic pipe welding machine, wherein the transmission mechanism comprises an inner rotating shaft and an outer rotating shaft, the tensioning device for the automatic pipe welding machine is further arranged, the end part of the inner rotating shaft is connected with a conical jacking block, a conical surface body of the conical jacking block is slidably arranged in an expansion sleeve, a positioning platform is connected with the outer rotating shaft, the outer rotating shaft is connected with a motor through a belt, and the inner rotating shaft is connected with a tensioning oil cylinder through a bearing sleeve. The pipe welding machine preliminarily replaces manpower, and meets the requirement for mechanized welding of thin-wall steel pipes. The tensioning device comprises a conical top block, an expansion sleeve and a positioning platform in sequence from front to back; the middle part of the conical top block is provided with a shaft hoop matched with the inner rotating shaft, and the rear end of the conical top block is a conical body; the expansion sleeve comprises a plurality of arc-shaped expansion blocks, and the arc-shaped expansion blocks are connected together through a telescopic spring to form the expansion sleeve; the inner wall of the expansion sleeve comprises a wedge surface matched with the conical surface body and a cylindrical surface connected with the outer rotating shaft from front to back; the rear end face of the expansion sleeve is in contact with the positioning platform. The automatic shaping of the pipe fitting can be realized through the tensioning device, the deformation of a welding seam is prevented, the welding efficiency of the pipe fitting is improved, and the welding quality is guaranteed. However, the company finds that the function of the pipe welding machine is too simple, the welding process still needs to be carried out manually, and the integral welding quality is influenced; particularly, in oblique fillet welding, the welding angle is difficult to grasp. The oblique fillet welding is to weld two straight steel pipes together at a certain angle, the welding ends of the two steel pipes must be cut into inclined planes with a certain oblique angle during welding, and the inclined planes of the two steel pipes are butted with each other and then welded. If two straight steel pipes are welded at an angle of 90 degrees, one ends of the two steel pipes are cut into inclined planes with an included angle of 45 degrees, the two inclined planes are spliced together, and finally the two inclined planes are welded.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide a thin-wall steel pipe oblique angle welding machine suitable for various pipe diameter specifications, which is used for automatically welding steel pipe oblique angles and can be suitable for steel pipe workpieces with various pipe diameters and improve the welding quality.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a thin-wall steel tube oblique angle welding machine suitable for various pipe diameter specifications comprises a workbench and a welding mechanism arranged on the workbench, wherein the welding mechanism comprises a welding support and a welding gun arranged on the welding support; the method is characterized in that: the welding machine further comprises a rotary push-pull assembly, the rotary push-pull assembly comprises a rotary shaft, a push-pull shaft, a first support, a tensioning device, a first servo motor and a push-pull assembly, and the first support is fixedly arranged on the workbench; the rotating shaft is a hollow shaft, the push-pull shaft is inserted into the rotating shaft, the front end of the push-pull shaft is provided with a tensioning device, the rear end of the push-pull shaft is connected with the push-pull assembly through a thrust bearing, and the push-pull assembly is used for driving the push-pull shaft to axially move in the rotating shaft; the rotating shaft is arranged on the first support through a bearing, the first servo motor is also fixedly arranged on the workbench, and the first servo motor is connected with the rotating shaft through a belt pulley assembly; the push-pull assembly comprises a first support and a push-pull oil cylinder, the push-pull oil cylinder is fixedly arranged on the first support, the first support is fixedly arranged on the workbench, and a push-pull shaft of the push-pull oil cylinder is connected with the thrust bearing through a floating joint;
the first support is also provided with a limiting device, and the limiting device comprises a hand wheel assembly, a driving gear, a driven gear, a limiting lantern ring and an external thread lantern ring; the hand wheel assembly is fixedly arranged on the first support, and a driving gear is arranged on the hand wheel assembly; the limiting lantern ring and the external thread lantern ring are both sleeved on a push-pull shaft of the push-pull oil cylinder, the external thread lantern ring is fixedly arranged on the first support, and the limiting lantern ring is fixedly connected with the floating joint; the driven gear is annular, an internal thread is arranged in the driven gear and is connected with the external thread lantern ring in a matching way, and the driven gear is used for abutting against the limiting lantern ring; the driving gear and the driven gear are meshed with each other.
The rotating shaft comprises a main rotating shaft and a secondary rotating shaft, the main rotating shaft is arranged on the first support through a bearing, and the first servo motor is connected with the main rotating shaft through a belt pulley assembly; the secondary rotating shaft is connected with the main rotating shaft through a flange, and the front end of the secondary rotating shaft is in contact with the tensioning device.
The welding machine also comprises a wire feeding mechanism, wherein the wire feeding mechanism comprises a third support, a welding wire winding wheel, a wire feeder and a wire feeding gun; the third support is arranged on the workbench, the welding wire winding wheel and the wire feeder are arranged on the third support, and the wire feeding gun is fixedly arranged on the L-shaped rotating arm through a wire feeding gun clamp; and the welding wire on the welding wire winding wheel is conveyed to the wire feeding gun by the wire feeder.
The welding machine further comprises a PLC controller, and the PLC controller is connected with the first servo motor, the wire feeder and the push-pull oil cylinder.
The invention has the beneficial effects that:
1. the invention is used for automatic welding of steel pipe oblique angles, and can accurately grasp the welding angle and the welding quality.
2. The rotating shaft in the invention has a two-section structure, wherein the secondary rotating shaft can be conveniently replaced, and the secondary rotating shaft with corresponding length can be selected according to steel pipe workpieces with different lengths, so that the universality is improved.
3. According to the invention, the push-pull shaft of the push-pull oil cylinder is connected with the thrust bearing through the floating joint, so that the disassembly is convenient, the error can be eliminated, the components are protected, the equipment runs stably, and the service life of the equipment is prolonged.
4. The invention is also provided with a limiting device for limiting and adjusting the stretching amount of the push-pull oil cylinder so as to be suitable for steel pipe workpieces with more diameter specifications.
5. The invention also comprises a wire feeding mechanism which is used for feeding welding wires during welding and ensures that welding seams are uniform and the welding quality is high by matching with the control of the PLC.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a partial perspective view of the present invention.
Figure 3 is a perspective view of the rotary push-pull assembly of the present invention.
Figure 4 is a perspective view of the push-pull assembly (including the stop assembly) of the present invention.
Figure 5 is a disassembled schematic view of the push-pull assembly of the present invention.
Fig. 6 is a perspective view of the welding mechanism of the present invention.
Fig. 7 is a perspective view of the present invention in use.
In the figure:
1. a work table;
2. the device comprises a rotary push-pull assembly, 201, a rotary shaft, 202, a push-pull shaft, 203, a first support, 204, a tensioning device, 205, a first servo motor, 206, a push-pull assembly, 207, a main rotary shaft, 208, a secondary rotary shaft, 209, a belt pulley assembly, 210, a push-pull oil cylinder, 211, a thrust bearing, 212, a floating joint, 213, a second support, 214, a hand wheel assembly, 215, a driving gear, 216, a driven gear, 217, a limiting lantern ring, 218 and an external thread lantern ring;
3. the welding mechanism comprises a welding mechanism 301, a horizontal linear module 302, a vertical linear module 303, a connecting plate 304, a second servo motor 305, an L-shaped rotating arm 306, a welding gun clamp 307, a welding gun 308, a wire feeding gun 309 and a wire feeding gun clamp;
4. a wire feeder 401, a third support 402, a welding wire winding wheel 403 and a wire feeder;
5. and (5) steel pipe workpieces.
Detailed Description
For a better understanding of the present invention, the technical solutions of the present invention are further described below with reference to the following examples and accompanying drawings (as shown in fig. 1 to 7).
The utility model provides a thin wall steel pipe oblique angle welding machine suitable for multiple pipe diameter specification, includes workstation 1 and installs welding mechanism 3 on workstation 1, welding mechanism 3 includes the welding stent and installs welder 307 on the welding stent.
The welding support comprises a cross sliding table module (which consists of a horizontal linear module 301 and a vertical linear module 302, wherein the vertical linear module 302 is fixedly arranged on the workbench 1, the horizontal linear module 301 is fixedly connected with a connecting plate 303), a connecting plate 303, a second servo motor 304 and an L-shaped rotating arm 305, and the cross sliding table module is arranged on the workbench 1; one end of the connecting plate 303 is installed on the cross sliding table module, and the other end of the connecting plate is provided with a second servo motor 304; one end of the L-shaped rotating arm 305 is installed on an output shaft of the second servo motor 304, and the other end is provided with a welding gun clamp 306 for installing a welding gun 307 (the cross sliding table module is used for adjusting the welding gun 307 in the horizontal and vertical directions, and the second servo motor 304 is used for adjusting the angle of the welding gun 307).
The welding machine further comprises a rotary push-pull assembly 2, wherein the rotary push-pull assembly 2 comprises a rotating shaft 201, a push-pull shaft 202, a first support 203, a tensioning device 204, a first servo motor 205 and a push-pull assembly 206, and the first support 203 is fixedly arranged on the workbench 1; the rotating shaft 201 is a hollow shaft, the push-pull shaft 202 is inserted into the rotating shaft 201, the front end of the push-pull shaft 202 is provided with a tensioning device 204, the rear end of the push-pull shaft 202 is connected with a push-pull assembly 206 through a thrust bearing 211, and the push-pull assembly 206 is used for driving the push-pull shaft 202 to axially move in the rotating shaft 201; the rotating shaft 201 is mounted on a first support 203 through a bearing (the tensioning device 204 fixes the steel pipe by being extruded and enlarged by the rotating shaft 201 and the push-pull shaft 202, and the position corresponds to the welding gun 307), the first servo motor 205 is also fixedly mounted on the workbench 1, and the first servo motor 205 is connected with the rotating shaft 201 through a belt pulley assembly 209.
The rotating shaft 201 comprises a main rotating shaft 207 and a secondary rotating shaft 208, the main rotating shaft 207 is mounted on the first support 203 through a bearing, and the first servo motor 205 is connected with the main rotating shaft 207 through a pulley assembly 209; the secondary rotating shaft 208 is connected with the main rotating shaft 207 through a flange, and the front end of the secondary rotating shaft 208 is in contact with the tensioning device 204.
The push-pull assembly 206 comprises a first support 203 and a push-pull oil cylinder 210, the push-pull oil cylinder 210 is fixedly arranged on the first support 203, the first support 203 is fixedly arranged on the workbench 1, and a push-pull shaft of the push-pull oil cylinder 210 is connected with a thrust bearing 211. The push-pull shaft of the push-pull oil cylinder 210 is connected with the thrust bearing 211 through a floating joint 212.
The first support 203 is also provided with a limiting device, and the limiting device comprises a hand wheel assembly 214, a driving gear 215, a driven gear 216, a limiting collar 217 and an external thread collar 218; the hand wheel assembly 214 is fixedly arranged on the first support 203, and a driving gear 215 is arranged on the hand wheel assembly 214; the limiting lantern ring 217 and the external thread lantern ring 218 are sleeved on a push-pull shaft of the push-pull oil cylinder 210, the external thread lantern ring 218 is fixedly installed on the first support 203, and the limiting lantern ring 217 is fixedly connected with the floating joint 212; the driven gear 216 is circular, internal threads are arranged in the driven gear 216 and are connected with the external thread lantern ring 218 in a matching mode, and the driven gear 216 is used for abutting against the limiting lantern ring 217 (playing a role in limiting the stretching amount of the push-pull oil cylinder 210); the driving gear 215 and the driven gear 216 are meshed with each other.
The welding machine further comprises a wire feeder 4, wherein the wire feeder 4 comprises a third support 401, a wire reel 402, a wire feeder 403 and a wire gun 308; the third support 401 is mounted on the workbench 1, the welding wire reel 402 and the wire feeder 403 are mounted on the third support 401, and the wire feeder 308 is fixedly mounted on the L-shaped rotating arm 305 through a wire feeder clamp 309; the wire from the wire spool 402 is fed to the wire gun 308 by the wire feeder 403.
The welding machine further comprises a PLC controller, and the PLC controller is connected with (and controls) the cross sliding table module, the second servo motor 304, the first servo motor 205, the wire feeder 403 and the push-pull oil cylinder 210.
The use method and the principle of the welding machine are as follows:
1. firstly, fixing two steel pipe workpieces 5 to be welded in a spot welding manner, and then sleeving the steel pipe workpieces 5 on the tensioning device 204 and fixing; the complete welding will then be performed by the welding means 3.
2. The cross sliding table module in the welding mechanism 3 is used for adjusting the horizontal and vertical positions of the welding gun 307, and the second servo motor 304 is used for adjusting the welding angle of the welding gun 307; the rotation of the steel pipe workpiece 5 is driven by rotating the rotating shaft 201, and finally the welding of the whole bevel annular seam is completed.
3. Different programs are formulated for the PLC according to the steel pipe workpieces 5 with different diameters, and the cross sliding table module, the second servo motor 304, the first servo motor 205, the wire feeder 403 and the push-pull oil cylinder 210 are coordinately controlled to work to complete welding.
4. The driving gear 215 is driven to rotate by rotating the handwheel assembly 214, so that the driven gear 216 is driven to rotate, and the driven gear 216 rotates to move on the external thread sleeve ring 218 along the axial direction; when the driven gear 216 moves forward, the distance between the driven gear 216 and the limiting collar 217 is reduced (the driven gear 216 abuts against the limiting collar 217, so that the push-pull shaft of the push-pull oil cylinder 210 is stopped when a certain amount of the push-pull shaft is recovered), the expansion amount of the push-pull oil cylinder 210 is reduced, the expansion amount (diameter) of the tensioning device 204 is reduced, and the device is suitable for the steel pipe workpiece 5 with small diameter; when the driven gear 216 moves backwards, the distance between the driven gear and the limiting lantern ring 217 is increased, the expansion amount of the push-pull oil cylinder 210 is increased, and the expansion amount (diameter) of the tensioning device 204 is increased, so that the driven gear is suitable for large-diameter steel pipe workpieces 5.
The above description is only an application example of the present invention, and certainly, the present invention should not be limited by this application, and therefore, the present invention is still within the protection scope of the present invention by equivalent changes made in the claims of the present invention.
Claims (3)
1. A thin-wall steel pipe oblique angle welding machine suitable for various pipe diameter specifications comprises a workbench (1) and a welding mechanism (3) arranged on the workbench (1), wherein the welding mechanism (3) comprises a welding support and a welding gun (307) arranged on the welding support; the method is characterized in that: the welding machine further comprises a rotary push-pull assembly (2), wherein the rotary push-pull assembly (2) comprises a rotating shaft (201), a push-pull shaft (202), a first support (203), a tensioning device (204), a first servo motor (205) and a push-pull assembly (206), and the first support (203) is fixedly arranged on the workbench (1); the rotating shaft (201) is a hollow shaft, the push-pull shaft (202) is inserted into the rotating shaft (201), the front end of the push-pull shaft (202) is provided with a tensioning device (204), the rear end of the push-pull shaft (202) is connected with the push-pull assembly (206) through a thrust bearing (211), and the push-pull assembly (206) is used for driving the push-pull shaft (202) to axially move in the rotating shaft (201); the rotating shaft (201) is mounted on a first support (203) through a bearing, the first servo motor (205) is also fixedly mounted on the workbench (1), and the first servo motor (205) is connected with the rotating shaft (201) through a belt pulley assembly (209); the push-pull assembly (206) comprises a first support (203) and a push-pull oil cylinder (210), the push-pull oil cylinder (210) is fixedly arranged on the first support (203), the first support (203) is fixedly arranged on the workbench (1), and a push-pull shaft of the push-pull oil cylinder (210) is connected with a thrust bearing (211) through a floating joint (212);
the first support (203) is also provided with a limiting device, and the limiting device comprises a hand wheel assembly (214), a driving gear (215), a driven gear (216), a limiting lantern ring (217) and an external thread lantern ring (218); the hand wheel assembly (214) is fixedly arranged on the first support (203), and a driving gear (215) is arranged on the hand wheel assembly (214); the limiting lantern ring (217) and the external thread lantern ring (218) are sleeved on a push-pull shaft of the push-pull oil cylinder (210), the external thread lantern ring (218) is fixedly installed on the first support (203), and the limiting lantern ring (217) is fixedly connected with the floating joint (212); the driven gear (216) is in a circular ring shape, internal threads are formed in the driven gear and are in matched connection with the external thread lantern ring (218), and the driven gear (216) is used for abutting against the limiting lantern ring (217); the driving gear (215) and the driven gear (216) are meshed and connected with each other;
the welding machine further comprises a wire feeding mechanism (4), wherein the wire feeding mechanism (4) comprises a third support (401), a welding wire winding wheel (402), a wire feeder (403) and a wire feeding gun (308); the third support (401) is installed on the workbench (1), the welding wire winding wheel (402) and the wire feeder (403) are installed on the third support (401), and the wire feeding gun (308) is fixedly installed on the L-shaped rotating arm (305) through a wire feeding gun clamp (309); the welding wire on the welding wire reel (402) is conveyed to the wire feeding gun (308) by the wire feeder (403).
2. The bevel welding machine for thin-wall steel tubes with various tube diameters suitable for the steel tube of claim 1 is characterized in that: the rotating shaft (201) comprises a main rotating shaft (207) and a secondary rotating shaft (208), the main rotating shaft (207) is mounted on the first support (203) through a bearing, and the first servo motor (205) is connected with the main rotating shaft (207) through a belt pulley assembly (209); the secondary rotating shaft (208) is connected with the main rotating shaft (207) through a flange, and the front end of the secondary rotating shaft (208) is in contact with the tensioning device (204).
3. The bevel welding machine for thin-wall steel tubes with various tube diameters suitable for the steel tube of claim 1 is characterized in that: the welding machine further comprises a PLC controller, and the PLC controller is connected with the cross sliding table module, the second servo motor (304), the first servo motor (205), the wire feeder (403) and the push-pull oil cylinder (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810953563.0A CN108994421B (en) | 2018-08-21 | 2018-08-21 | Thin-wall steel pipe oblique angle welding machine suitable for various pipe diameter specifications |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810953563.0A CN108994421B (en) | 2018-08-21 | 2018-08-21 | Thin-wall steel pipe oblique angle welding machine suitable for various pipe diameter specifications |
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| CN108994421A CN108994421A (en) | 2018-12-14 |
| CN108994421B true CN108994421B (en) | 2020-09-15 |
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| CN201810953563.0A Active CN108994421B (en) | 2018-08-21 | 2018-08-21 | Thin-wall steel pipe oblique angle welding machine suitable for various pipe diameter specifications |
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| CN110936096B (en) * | 2019-12-27 | 2024-05-28 | 无锡华联科技集团有限公司 | Oil collecting pipe welding device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200998832Y (en) * | 2007-01-29 | 2008-01-02 | 宋宝安 | Pipe intersecting line cutter |
| CN201195226Y (en) * | 2008-05-08 | 2009-02-18 | 深圳市瑞凌实业有限公司 | Welding gun clamp apparatus capable of adjusting soldering supplying angle and position |
| CN102485383A (en) * | 2010-12-04 | 2012-06-06 | 江苏飞船股份有限公司 | Lathe tailstock capable of presetting round trip |
| CN106041245A (en) * | 2016-08-04 | 2016-10-26 | 无锡尊宝电动车有限公司 | Fan casing soldering machine capable of removing dust |
| CN206302282U (en) * | 2016-11-16 | 2017-07-04 | 浙江佳雪微特电机集团有限责任公司 | Curtain stretches toothed gearing electric motor automatically |
| CN206916658U (en) * | 2017-05-05 | 2018-01-23 | 潘民 | A kind of intelligent highway height-limiting frame |
| CN107252953A (en) * | 2017-07-20 | 2017-10-17 | 襄阳顺特阳光科技有限公司 | A kind of stainless steel automatic pipe welder |
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