CN111745319B - Automatic welding process for stainless steel pipe - Google Patents
Automatic welding process for stainless steel pipe Download PDFInfo
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- CN111745319B CN111745319B CN202010739205.7A CN202010739205A CN111745319B CN 111745319 B CN111745319 B CN 111745319B CN 202010739205 A CN202010739205 A CN 202010739205A CN 111745319 B CN111745319 B CN 111745319B
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- steel pipes
- clamping
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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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
- 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
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
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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
- 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
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
Abstract
The invention relates to an automatic welding process of stainless steel pipes, in particular to an automatic welding fixture of stainless steel pipes, which comprises a fixture table, a butt joint synchronous driving mechanism arranged below the fixture table, two positioning and clamping mechanisms for positioning and clamping two stainless steel pipes in a one-to-one correspondence manner, a positioning baffle mechanism for positioning welding ports of the two stainless steel pipes and a fine adjustment and correction mechanism for fine adjustment and correction; the clamp involved in the process can perform welding auxiliary butt joint on the stainless steel pipes with two vertically welded ports, can automatically and quickly realize accurate butt joint of the two stainless steel pipe welding ports, ensures the butt joint accuracy and the butt joint tightness of the welding ports, further ensures the welding quality of a welding finished product, and ensures the welding strength and the welding attractiveness.
Description
Technical Field
The invention relates to the technical field of welding processing, and particularly provides an automatic welding process for a stainless steel pipe.
Background
Stainless steel pipe is a hollow long round steel material, and is widely used for industrial pipelines such as petroleum, chemical engineering, medical treatment, food, light industry, mechanical instruments and the like, mechanical structural parts and the like, and is also widely used for manufacturing mechanical parts and engineering structures because of the same bending strength and torsional strength and lighter weight.
In the actual processing process, according to the actual requirement of the layout of the steel pipe components, the stainless steel pipe is often required to be welded, the most common of them is to perform linear welding and to perform vertical welding, wherein the vertical welding comprises the vertical welding of two stainless steel pipe ports and the vertical welding of one stainless steel pipe port relative to the other stainless steel pipe side wall, in the process of vertically welding the ports of the two stainless steel pipes, the ports of the stainless steel pipes are often required to be cut in advance, so that the ports form a welding port inclined plane, in the actual welding operation process, manual alignment welding is generally directly carried out, obviously, in the operation process, quick butt joint of two stainless steel pipe welding ports is inconvenient, and the accuracy that the ports are tightly attached and already butted is not easy to guarantee, so that the appearance attractiveness of the connection strength of a final welding finished product is influenced.
Based on the problems, the invention provides an automatic welding process for stainless steel pipes, and particularly relates to an automatic welding clamp for stainless steel pipes, which is mainly used for vertical welding operation of two stainless steel pipe ports.
Disclosure of Invention
In order to solve the above problems, the present invention provides an automated welding process for stainless steel pipes, which is used to solve the above problems in the background art.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: an automatic welding process for stainless steel pipes comprises the following steps:
s1, port cutting: cutting a port at one end of a stainless steel pipe to be welded so that the port is used as a welding port;
s2, placing a steel pipe: placing two stainless steel tubes of which the end openings are cut in the step S1 in two positioning and clamping mechanisms in a one-to-one correspondence manner;
s3, positioning ports: positioning the welding ports of the two stainless steel pipes through a positioning baffle mechanism;
s4, positioning and clamping: clamping the stainless steel pipe with the port positioned in the step S3 through a positioning and clamping mechanism, so that the relative included angle of the two stainless steel pipes to be welded is ninety degrees;
s5, driving butt joint: the two positioning and clamping mechanisms are driven to slide by the butt joint synchronous driving mechanism, so that the welding ports of the two clamped stainless steel pipes are driven to realize preliminary butt joint;
s6, fine adjustment and correction: fine adjustment is carried out on the two stainless steel pipes which are preliminarily butted in the step S5 through a fine adjustment correction mechanism, so that the welding ports of the two stainless steel pipes are accurately butted;
s7, port welding: welding the butt joint port positions of the two stainless steel pipes;
the automatic welding process for the stainless steel pipes in the steps S1-S7 is adopted, and in the welding process of the stainless steel pipes, the automatic welding clamp for the stainless steel pipes further specifically comprises a clamp table, a butt joint synchronous driving mechanism arranged below the clamp table, two positioning and clamping mechanisms used for correspondingly positioning and clamping the two stainless steel pipes one by one, a positioning baffle mechanism used for positioning the welding ports of the two stainless steel pipes and a fine adjustment and correction mechanism used for fine adjustment and correction; wherein:
the two positioning and clamping mechanisms are arranged on the table board of the fixture table, the relative included angle between the two positioning and clamping mechanisms is ninety degrees, the positioning and clamping mechanisms comprise slide rails fixedly arranged on the table board of the fixture table, a sliding base arranged along the slide rails in a sliding manner, two positioning cushion blocks, two springs, a portal frame, a clamping cylinder vertically and fixedly arranged at the top end of the portal frame and a clamping press block fixedly arranged at the output end of the clamping cylinder, the two positioning cushion blocks are arranged at the upper end of the sliding base in a relative sliding manner, the sliding directions of the two positioning cushion blocks are perpendicular to the sliding direction of the sliding base, the inner side walls of the two positioning cushion blocks form an inverted V-shaped structure, the sliding base is symmetrically provided with two side stretching plates which are respectively positioned at two sides of the sliding direction of the sliding base, and the portal frame is fixedly connected between the upper end surfaces of the two side stretching plates, the two positioning cushion blocks are connected with the inner side wall of the portal frame through the springs, and the clamping pressing block is positioned right above the two positioning cushion blocks; the relative included angle of the two slide rails in the two positioning and clamping mechanisms is ninety degrees, the two sliding bases in the two positioning and clamping mechanisms are arranged in mirror symmetry about the vertical angle bisection plane of the included angle of the two slide rails, and the butt joint synchronous driving mechanism can drive the two sliding bases to synchronously move along the intersection direction;
the positioning baffle mechanism is positioned at one side of the 270-degree included angle range of the two positioning and clamping mechanisms, the positioning baffle mechanism comprises a guide vertical plate fixedly installed on the table surface of the fixture table, two sliding shafts horizontally and slidably arranged on the guide vertical plate, a serial plate fixedly connected to one ends of the two sliding shafts, a positioning cylinder with an output end fixedly connected with the serial plate and two positioning baffles fixedly connected to the other ends of the two sliding shafts in a one-to-one correspondence manner, the guide vertical plate is perpendicular to the vertical angle bisector of the included angle of the two sliding rails, the positioning cylinder is horizontally and fixedly installed at the upper end of the fixture table, the two positioning baffles are parallel to the vertical angle bisector of the included angle of the two sliding rails, and the two positioning baffles are arranged in mirror symmetry relative to the vertical angle bisector of the included angle;
the fine adjustment correcting mechanism is arranged on the guide vertical plate.
Preferably, the butt joint synchronous driving mechanism comprises a driving motor, a screw rod and an elastic telescopic rod group, the driving motor is horizontally and fixedly arranged on the side of the clamp table, the screw rod is fixedly connected with an output shaft of the driving motor, the screw rod is horizontally and rotatably arranged at the bottom of the table top of the clamp table, the axial direction of the screw rod is axially parallel to the sliding shaft, the elastic telescopic rod group comprises a threaded connecting block, sliding sleeve rods which are oppositely arranged and fixedly connected with the two sides of the threaded connecting block, two guide rods which are in one-to-one corresponding sliding fit with the two sliding sleeve rods, and two tension springs which are sleeved on the two sliding sleeve rods in one-to-one correspondence, the threaded connecting block is in threaded connection with the screw rod, the two ends of each tension spring are fixedly connected between the side wall of the threaded connecting block and the end part of each guide, the bottom of the sliding base is provided with an inserting block penetrating through the avoiding hole, and the end parts of the two guide rods are correspondingly and fixedly connected with the inserting block positioned on the same side.
Preferably, fine setting aligning gear is including fine setting cylinder, bilobal roller frame and fine setting roller, the horizontal fixed mounting of fine setting cylinder is in on the lateral wall of direction riser, the bilobal roller frame is located and is close to positioning and clamping mechanism one side just is located two between the locating baffle, the bilobal roller frame with the output fixed connection of fine setting cylinder, the mirror symmetry is provided with two roller frames on the bilobal roller frame, two the mirror symmetry face and two of roller frame the coincidence of the vertical angle bisector of slide rail contained angle, two equal vertical rotation is provided with a plurality of fine setting rollers on the roller frame, and is a plurality of the fine setting roller is along being close to the linear align and grid of slide rail's slip direction.
Preferably, the double-blade roller frame is provided with a spacing groove between the two roller frames.
Preferably, the clamping notch at the lower end of the clamping pressing block is in an isosceles trapezoid shape.
The technical scheme has the following advantages or beneficial effects:
the invention provides an automatic welding process of stainless steel pipes, in particular to an automatic welding fixture of stainless steel pipes, which can place two stainless steel pipes to be welded through two positioning and clamping mechanisms, can quickly and accurately position welding ports of the two stainless steel pipes through the arranged positioning baffle plate mechanism, can quickly clamp the stainless steel pipes through the positioning and clamping mechanisms after the positioning of the ports is finished, can drive the two stainless steel pipes to automatically finish the port butt joint through the arranged butt joint synchronous driving mechanism after the positioning and clamping are finished, and can ensure the accuracy of the port butt joint through the arranged fine adjustment and correction mechanism after the port butt joint is finished, in conclusion, the fixture related to the process can perform auxiliary butt joint on the stainless steel pipes vertically welded at the two ports, can automatically and quickly realize the accurate butt joint of the welding ports of the two stainless steel pipes, the accuracy and tightness of butt joint of the welding ports are guaranteed, the welding quality of a welded finished product is guaranteed, and the welding strength and the welding attractiveness are guaranteed.
Drawings
The invention and its features, aspects and advantages will become more apparent from reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings. The drawings, in which like numerals refer to like parts throughout the several views and which are not necessarily drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.
FIG. 1 is a process flow diagram of an automated welding process for stainless steel tubes according to the present invention;
FIG. 2 is a schematic perspective view of an automated welding fixture for stainless steel pipes according to the present invention;
FIG. 3 is an enlarged partial schematic view at A in FIG. 2;
FIG. 4 is an enlarged partial schematic view at B of FIG. 2;
FIG. 5 is a schematic perspective view of an automated welding fixture for stainless steel pipes according to another aspect of the present invention;
FIG. 6 is an enlarged partial schematic view at C of FIG. 5;
FIG. 7 is a top view of an automated welding fixture for stainless steel tubes according to the present invention;
FIG. 8 is a side view of an automated welding fixture for stainless steel tubes according to the present invention;
fig. 9 is a schematic diagram of the product structure of two stainless steel tubes with relatively vertical welds.
In the figure: 1. a jig stage; 2. a docking synchronous drive mechanism; 21. a drive motor; 22. a screw; 23. an elastic telescopic rod group; 231. a threaded connection block; 232. a sliding sleeve rod; 233. a guide bar; 234. a tension spring; 3. a positioning and clamping mechanism; 31. a slide rail; 311. avoiding holes; 32. a slide base; 321. inserting the block; 322. a side extension plate; 33. positioning a cushion block; 34. a spring; 35. a gantry; 36. a clamping cylinder; 37. clamping a pressing block; 4. a positioning baffle mechanism; 41. a guide vertical plate; 42. a sliding shaft; 43. a series of plates; 44. positioning the air cylinder; 45. positioning a baffle plate; 5. finely adjusting the correcting mechanism; 51. fine adjustment of the cylinder; 52. a double-blade roller frame; 521. a roller frame; 522. a position avoiding groove; 53. and (4) fine adjustment of the rollers.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for the purpose of providing those skilled in the art with a more complete, accurate and thorough understanding of the concept and technical solution of the present invention, and to facilitate the implementation thereof, but not to limit the present invention.
Referring to the attached drawings 1-9, an automatic welding process for stainless steel pipes specifically comprises the following steps:
s1, port cutting: cutting a port at one end of a stainless steel pipe to be welded so that the port is used as a welding port;
s2, placing a steel pipe: placing two stainless steel pipes of which the end openings are cut in the step S1 in the two positioning and clamping mechanisms 3 in a one-to-one correspondence manner;
s3, positioning ports: positioning the welding ports of the two stainless steel pipes by a positioning baffle mechanism 4;
s4, positioning and clamping: clamping the stainless steel pipe with the port positioned in the step S3 through the positioning and clamping mechanism 3, so that the relative included angle of the two stainless steel pipes to be welded is ninety degrees;
s5, driving butt joint: the two positioning and clamping mechanisms 3 are driven to slide by the butt joint synchronous driving mechanism 2, so that the welding ports of the two clamped stainless steel pipes are driven to realize preliminary butt joint;
s6, fine adjustment and correction: the two stainless steel pipes which are preliminarily butted in the step S5 are finely adjusted through the fine adjustment correcting mechanism 5, so that the welding ports of the two stainless steel pipes are accurately butted;
s7, port welding: welding the butt joint port positions of the two stainless steel pipes;
the automatic welding process for the stainless steel pipes in the steps S1-S7 is adopted, and in the welding process of the stainless steel pipes, the automatic welding fixture for the stainless steel pipes further specifically relates to an automatic welding fixture for the stainless steel pipes, and comprises a fixture table 1, a butt joint synchronous driving mechanism 2 arranged below the fixture table 1, two positioning and clamping mechanisms 3 used for positioning and clamping the two stainless steel pipes in a one-to-one correspondence manner, a positioning baffle mechanism 4 used for positioning welding ports of the two stainless steel pipes and a fine adjustment and correction mechanism 5 used for fine adjustment and correction; the location of the various structures in the fixture is shown in the top view of fig. 7.
The two positioning and clamping mechanisms 3 are arranged on the table top of the clamp table 1, the relative included angle of the two positioning and clamping mechanisms 3 is ninety degrees (the clamp provided by the invention is mainly arranged for two stainless steel pipes which are vertically welded relatively), the positioning and clamping mechanisms 3 comprise a slide rail 31 fixedly welded on the table top of the clamp table 1, a sliding base 32 arranged along the slide rail 31 in a sliding way, two positioning cushion blocks 33, two springs 34, a portal frame 35, a clamping cylinder 36 vertically and fixedly arranged at the top end of the portal frame 35 through bolts and a clamping pressing block 37 fixedly arranged at the output end of the clamping cylinder 36, the two positioning cushion blocks 33 are arranged at the upper end of the sliding base 32 in a relative sliding way, the sliding direction of the two positioning cushion blocks 33 is vertical to the sliding direction of the sliding base 32, the inner side walls of the two positioning cushion blocks 33 form an inverted V-shaped structure (the inverted, the sliding base 32 is symmetrically provided with two side extension plates 322, the two side extension plates 322 are respectively positioned at two sides of the sliding base 32 in the sliding direction, the portal frame 35 is fixedly connected between the upper end surfaces of the two side extension plates 322 in a welding manner, the two positioning cushion blocks 33 are connected with the inner side wall of the portal frame 35 through springs 34, the clamping pressing block 37 is positioned right above the two positioning cushion blocks 33, and the clamping notch at the lower end of the clamping pressing block 37 is in an isosceles trapezoid shape; the relative included angle of the two slide rails 31 in the two positioning and clamping mechanisms 3 is ninety degrees, the two slide bases 32 in the two positioning and clamping mechanisms 3 are arranged in mirror symmetry with respect to the vertical angular bisector of the included angle of the two slide rails 31 (so that the distance between the two slide bases 32 and the intersection point is equal, and after the port positioning is completed, the butt joint of the two stainless steel pipe ports can be realized by driving the butt joint synchronous driving mechanism 2), and the butt joint synchronous driving mechanism 2 can drive the two slide bases 32 to synchronously move along the intersection direction;
the cutting and forming of the two stainless steel pipe welding ports are completed through the port cutting operation of the step S1, so that the two stainless steel pipe welding ports are relatively vertical after being butted, and a welding groove is processed on the welding ports for firm welding.
In the execution of the steel pipe placing operation of step S2, two stainless steel pipes that can be butted are respectively placed between the two positioning pads 33 of the two positioning and clamping mechanisms 3, and thus the horizontal placement of the two stainless steel pipes to be welded is completed.
The welding port of two stainless steel pipes can be positioned by the positioning baffle mechanism 4, the positioning baffle mechanism 4 is positioned at one side of the included angle range of 3270 degrees of the two positioning clamping mechanisms, the positioning baffle mechanism 4 comprises a guide vertical plate 41 fixedly welded on the table top of the fixture table 1, two sliding shafts 42 horizontally and slidably arranged on the guide vertical plate 41, a serial plate 43 welded at one end of the two sliding shafts 42, a positioning cylinder 44 with an output end fixedly connected with the serial plate 43 and two positioning baffles 45 welded at the other ends of the two sliding shafts 42 in a one-to-one correspondence manner, the guide vertical plate 41 is perpendicular to the vertical bisector of the included angle of the two sliding rails 31, the positioning cylinder 44 is horizontally and fixedly arranged at the upper end of the fixture table 1, the two positioning baffles 45 are parallel to the vertical bisector of the, the two positioning baffles 45 are arranged in mirror symmetry relative to the vertical angle bisection plane of the included angle of the two slide rails 31;
when the port positioning operation of step S3 is executed, the positioning cylinder 44 is started to push the serial plate 43 to move forward, and then the two sliding shafts 42 are pushed to slide forward, so as to drive the two positioning baffles 45 to correspondingly extend to the front of the two placed stainless steel pipes, and then the two stainless steel pipes are sequentially pushed, so that the welding ports of the stainless steel pipes are attached to the positioning baffles 45, thereby positioning the welding ports of the two stainless steel pipes, and the purpose of port positioning is two-point.
After the positioning operation of the port of the step S3 is completed, the positioning and clamping operation of the step S4 is performed on the premise that the stainless steel tube is kept in contact with the positioning baffle 45, specifically, the clamping air cylinder 36 is started to drive the clamping press block 37 to move downwards, so that the stainless steel tube is clamped between the clamping press block 37 and the two positioning cushion blocks 33, the two positioning baffle 45 is returned to the initial position after the positioning and clamping are completed, the two positioning cushion blocks 33 slide backwards in the downward clamping process, the spring 34 is compressed and reversely compresses the stainless steel tube, the distance between the two positioning cushion blocks 33 can be adaptively self-adjusted, and then the stainless steel tubes with different diameters can be clamped.
The butt joint synchronous driving mechanism 2 comprises a driving motor 21, a screw rod 22 and an elastic telescopic rod group 23, the driving motor 21 is horizontally and fixedly arranged on the side of the clamp table 1 through bolts, the screw rod 22 is fixedly connected with an output shaft of the driving motor 21, the screw rod 22 is horizontally and rotatably arranged at the bottom of the table top of the clamp table 1, the axial direction of the screw rod 22 is axially parallel to the sliding shaft 42, the elastic telescopic rod group 23 comprises a threaded connecting block 231, sliding sleeve rods 232 which are oppositely arranged and welded on two sides of the threaded connecting block 231, two guide rods 233 which are in one-to-one corresponding sliding fit with the two sliding sleeve rods 232, and two tension springs 234 which are sleeved on the two sliding sleeve rods 232 one-to-one, the threaded connecting block 231 is in threaded connection with the screw rod 22, two ends of the tension springs 234 are welded between the side wall of the threaded connecting block 231 and the end of the guide rods, a position avoiding, the ends of the two guide rods 233 are welded to the insertion blocks 321 on the same side.
After the two stainless steel pipes are positioned and clamped, the step S5 driven butt joint operation can be executed, specifically, the driving motor 21 is started to drive the screw rod 22 to rotate, the screw rod 22 drives the threaded connection block 231 to move towards the direction close to the fine adjustment correcting mechanism 5, the guide rods 233 on the two sides slide towards the sliding sleeve rod 232, the tension spring 234 is compressed, the whole elastic telescopic rod group 23 is shortened, the elastic telescopic rod group 23 drives the two sliding bases 32 to synchronously slide towards the direction close to the fine adjustment correcting mechanism 5, so that the two stainless steel pipes are driven to move along with the elastic telescopic rod group until the welding ports of the two stainless steel pipes are butted.
The fine adjustment correcting mechanism 5 is arranged on the guide vertical plate 41; the fine adjustment correcting mechanism 5 comprises a fine adjustment cylinder 51, a double-blade roller frame 52 and fine adjustment rollers 53, the fine adjustment cylinder 51 is horizontally and fixedly installed on the side wall of the guide vertical plate 41 through bolts, the double-blade roller frame 52 is located at one side close to the positioning and clamping mechanism 3 and between the two positioning baffle plates 45, the double-blade roller frame 52 is fixedly connected with the output end of the fine adjustment cylinder 51, the double-blade roller frame 52 is provided with two roller frames 521 in a mirror symmetry mode, the mirror symmetry plane of the two roller frames 521 is overlapped with the vertical angle bisection plane of the included angle of the two slide rails 31, the two roller frames 521 are vertically and rotatably provided with three fine adjustment rollers 53, and the three fine adjustment rollers 53 are linearly and uniformly arranged along the sliding guide direction of the close slide rails 31 (the relative included angle of the two rows; the double-blade roller frame 52 is provided with a clearance groove 522 between the two roller frames 521 (the clearance groove 522 is used for avoiding the tip positions of the two butted stainless steel pipes).
After the driving butt joint of the step S5 is completed, in order to ensure that the two butt-jointed stainless steel tube welding ports are accurately butt-jointed, the fine adjustment correction operation of the step S6 is performed, the correction is performed through the fine adjustment correction mechanism 5, specifically, the fine adjustment cylinder 51 is started to drive the double-blade roller frame 52 to move forward, so that the two rows of fine adjustment rollers 53 are driven to move forward, and then the two rows of fine adjustment rollers 53 are tightly attached to the two stainless steel tubes in a rigid manner, so that the rigid correction is realized, and the accurate butt joint of the two stainless steel tube ports is ensured.
Then, the port welding operation of step S7 is performed to weld the ports of the two stainless steel pipes.
Those skilled in the art will appreciate that variations may be implemented by those skilled in the art in combination with the prior art and the above-described embodiments, and will not be described in detail herein. Such variations do not affect the essence of the present invention and are not described herein.
The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; it will be understood by those skilled in the art that various changes and modifications may be made, or equivalents may be modified, without departing from the spirit of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (4)
1. An automatic welding process of stainless steel pipes is characterized in that: the welding process specifically comprises the following steps:
s1, port cutting: cutting a port at one end of a stainless steel pipe to be welded so that the port is used as a welding port;
s2, placing a steel pipe: placing two stainless steel tubes of which the end openings are cut in the step S1 into two positioning and clamping mechanisms (3) in a one-to-one correspondence manner;
s3, positioning ports: positioning the welding ports of the two stainless steel pipes through a positioning baffle mechanism (4);
s4, positioning and clamping: clamping the stainless steel pipe with the port positioned in the step S3 through a positioning and clamping mechanism (3) so that the relative included angle of the two stainless steel pipes to be welded is ninety degrees;
s5, driving butt joint: the two positioning and clamping mechanisms (3) are driven to slide by the butt joint synchronous driving mechanism (2), so that the welding ports of the two clamped stainless steel pipes are driven to realize preliminary butt joint;
s6, fine adjustment and correction: finely adjusting the two stainless steel pipes which are preliminarily butted in the step S5 through a fine adjustment correcting mechanism (5), so that the welding ports of the two stainless steel pipes are accurately butted;
s7, port welding: welding the butt joint port positions of the two stainless steel pipes;
the automatic welding process of the stainless steel pipes in the steps S1-S7 is adopted, and in the welding process of the stainless steel pipes, the automatic welding clamp of the stainless steel pipes further specifically relates to an automatic welding clamp of the stainless steel pipes, and comprises a clamp table (1), a butt joint synchronous driving mechanism (2) arranged below the clamp table (1), two positioning and clamping mechanisms (3) used for positioning and clamping the two stainless steel pipes in a one-to-one correspondence manner, a positioning baffle mechanism (4) used for positioning the welding ports of the two stainless steel pipes and a fine adjustment and correction mechanism (5) used for fine adjustment and correction; wherein:
the two positioning and clamping mechanisms (3) are arranged on the table top of the clamp table (1), the relative included angle of the two positioning and clamping mechanisms (3) is ninety degrees, each positioning and clamping mechanism (3) comprises a slide rail (31) fixedly arranged on the table top of the clamp table (1), a sliding base (32) arranged along the slide rail (31) in a sliding manner, two positioning cushion blocks (33), two springs (34), a portal frame (35), a clamping cylinder (36) vertically and fixedly arranged at the top end of the portal frame (35) and a clamping pressing block (37) fixedly arranged at the output end of the clamping cylinder (36), the two positioning cushion blocks (33) are arranged at the upper end of the sliding base (32) in a relative sliding manner, the sliding direction of the two positioning cushion blocks (33) is perpendicular to that of the sliding base (32), and the inner side walls of the two positioning cushion blocks (33) form an inverted V-shaped structure, the sliding base (32) is symmetrically provided with two side stretching plates (322), the two side stretching plates (322) are respectively positioned at two sides of the sliding direction of the sliding base (32), the portal frame (35) is fixedly connected between the upper end faces of the two side stretching plates (322), the two positioning cushion blocks (33) are connected with the inner side wall of the portal frame (35) through the springs (34), and the clamping pressing block (37) is positioned right above the two positioning cushion blocks (33); the relative included angle of two slide rails (31) in the two positioning and clamping mechanisms (3) is ninety degrees, two sliding bases (32) in the two positioning and clamping mechanisms (3) are arranged in mirror symmetry about the vertical angle bisection plane of the included angle of the two slide rails (31), and the butt joint synchronous driving mechanism (2) can drive the two sliding bases (32) to synchronously move along the intersection direction;
the positioning baffle mechanism (4) is positioned at one side of the 270-degree included angle range of the two positioning and clamping mechanisms (3), the positioning baffle mechanism (4) comprises a guide vertical plate (41) fixedly installed on the table surface of the fixture table (1), two sliding shafts (42) horizontally and slidably arranged on the guide vertical plate (41), a serial plate (43) fixedly connected to one end of each of the two sliding shafts (42), a positioning cylinder (44) with an output end fixedly connected with the serial plate (43), and two positioning baffles (45) fixedly connected to the other end of each of the two sliding shafts (42) in a one-to-one correspondence manner, wherein the guide vertical plate (41) is perpendicular to the vertical angular bisector of the included angle of the two sliding rails (31), the positioning cylinder (44) is horizontally and fixedly installed at the upper end of the fixture table (1), and the two positioning baffles (45) are parallel to the vertical angular bisector of the included angle of the two sliding rails (31), the two positioning baffles (45) are arranged in mirror symmetry relative to a vertical angle bisection plane of an included angle of the two slide rails (31);
the fine adjustment correcting mechanism (5) is arranged on the guide vertical plate (41);
the butt joint synchronous driving mechanism (2) comprises a driving motor (21), a screw rod (22) and an elastic telescopic rod group (23), the driving motor (21) is horizontally and fixedly installed on the side of the clamp table (1), the screw rod (22) is fixedly connected with an output shaft of the driving motor (21), the screw rod (22) is horizontally and rotatably installed at the bottom end of the table top of the clamp table (1), the axial direction of the screw rod (22) is parallel to the axial direction of the sliding shaft (42), the elastic telescopic rod group (23) comprises a threaded connecting block (231), sliding sleeve rods (232) which are fixedly connected with the two sides of the threaded connecting block (231), two guide rods (233) which are in one-to-one sliding fit with the sliding sleeve rods (232) and two tension springs (234) which are sleeved on the sliding sleeve rods (232) in one-to-one correspondence with the sliding sleeve rods (232), and the threaded connecting block (231) is in threaded connection with the screw rod (, extension spring (234) both ends fixed connection be in threaded connection piece (231) lateral wall with between guide arm (233) the tip, be equipped with on slide rail (31) with anchor clamps platform (1) mesa run through keep away a hole (311), sliding base (32) bottom is equipped with and passes keep away a piece (321) of alternating (321) of hole (311), two guide arm (233) tip with be located the homonymy it corresponds fixed connection to wear to insert piece (321).
2. The automatic welding process of the stainless steel pipe according to claim 1, characterized in that: the fine adjustment correcting mechanism (5) comprises a fine adjustment cylinder (51), a double-blade roller frame (52) and a fine adjustment roller (53), the fine adjustment cylinder (51) is horizontally and fixedly arranged on the side wall of the guide vertical plate (41), the double-blade roller frame (52) is positioned at one side close to the positioning and clamping mechanism (3) and between the two positioning baffle plates (45), the double-blade roller frame (52) is fixedly connected with the output end of the fine adjustment cylinder (51), two roller frames (521) are symmetrically arranged on the double-blade roller frame (52) in a mirror mode, the mirror symmetry plane of the two roller frames (521) coincides with the vertical angle bisection plane of the included angle of the sliding rail (31), a plurality of fine adjustment rollers (53) are vertically arranged on the two roller frames (521) in a rotating mode, and the fine adjustment rollers (53) are arranged along the direction close to the sliding guide direction of the sliding rail (31) in a straight line and evenly arranged mode.
3. The automatic welding process of the stainless steel pipe according to claim 2, characterized in that: and a position avoiding groove (522) is arranged between the two roller frames (521) on the double-blade roller frame (52).
4. The automatic welding process of the stainless steel pipe according to claim 1, characterized in that: the lower end of the clamping pressing block (37) is provided with a clamping notch in an isosceles trapezoid shape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010739205.7A CN111745319B (en) | 2020-07-28 | 2020-07-28 | Automatic welding process for stainless steel pipe |
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| CN202010739205.7A CN111745319B (en) | 2020-07-28 | 2020-07-28 | Automatic welding process for stainless steel pipe |
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| CN111745319B true CN111745319B (en) | 2021-05-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113020814B (en) * | 2021-03-17 | 2023-04-14 | 江西晖旭实业有限公司 | Laser cutting equipment and control method for processing pipes in batches by using same |
| CN116511766B (en) * | 2023-04-25 | 2023-11-03 | 南通职业大学 | Batch synchronous welding equipment for manufacturing and processing commutator segments of commutator |
| CN116727991B (en) * | 2023-08-16 | 2023-11-07 | 资阳建工建筑有限公司 | Steel construction built-in fitting preparation shaping processingequipment |
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