CN114054924B - Welding process for Q-shaped auxiliary frame longitudinal beam for heavy-duty automobile - Google Patents
Welding process for Q-shaped auxiliary frame longitudinal beam for heavy-duty automobile Download PDFInfo
- Publication number
- CN114054924B CN114054924B CN202111555835.XA CN202111555835A CN114054924B CN 114054924 B CN114054924 B CN 114054924B CN 202111555835 A CN202111555835 A CN 202111555835A CN 114054924 B CN114054924 B CN 114054924B
- Authority
- CN
- China
- Prior art keywords
- longitudinal beam
- auxiliary frame
- shaped auxiliary
- frame longitudinal
- welding
- 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.)
- Active
Links
Images
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
- B23K13/00—Welding by high-frequency current heating
- B23K13/01—Welding by high-frequency current heating by induction heating
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to the technical field of profile steel welding, and provides a process for welding a Q-shaped auxiliary frame longitudinal beam for a heavy-duty automobile. According to the Q-shaped auxiliary frame longitudinal beam welding device, the Q-shaped auxiliary frame longitudinal beam with the special-shaped structure is welded by adopting a high-frequency induction welding process, on the basis of improving the welding efficiency and avoiding the poor phenomena of pits, scratches and the like on the surface of the welded Q-shaped auxiliary frame longitudinal beam, induced current is further gathered by arranging the second magnetic rod, and in the welding process, the induced current generated in the Q-shaped auxiliary frame longitudinal beam is gathered to the welding point of the Q-shaped auxiliary frame longitudinal beam as far as possible under the cooperative action of the first magnetic rod and the second magnetic rod, so that the welding effect is effectively improved, and the welding quality is improved.
Description
Technical Field
The invention relates to the technical field of profile steel welding, in particular to a welding process of a Q-shaped auxiliary frame longitudinal beam for a heavy-duty automobile.
Background
The structure of the Q-shaped auxiliary frame longitudinal beam for the existing heavy-duty automobile is shown in figure 1, and the traditional processing mode of the auxiliary frame longitudinal beam is that cold-formed Z-shaped and L-shaped section steels are placed on an assembly welding platform, fixed by a special clamp and welded twice by a common electric welding machine or carbon dioxide gas shielded welding.
Because traditional processing mode machining efficiency is low, and the condition that appears warping easily after the assembly welding influences the processingquality of sub vehicle frame longeron. Therefore, the inventor designs a process for processing the Q-shaped subframe longitudinal beam by adopting a continuous cold-bending forming method (refer to the content recorded in the patent document with the publication number of CN109334766A and the name of 'the cold-bending Q-shaped subframe longitudinal beam for the upper part of the heavy truck and the production process thereof') so as to overcome the problems existing in the traditional processing mode.
However, the welding stage in the above process is high-frequency contact welding, and the inventor further verifies that the welding contact is required to be in contact with the surface of the section steel of the Q-shaped subframe longitudinal beam during the welding process by using the high-frequency contact welding. In the actual welding process, the part of the welding contact is easy to melt in a high-temperature state, pits are easy to generate on the surface of the section steel after welding, the molten welding contact is of an uneven structure, scratches are easy to generate on the surface of the section steel, and meanwhile the welding contact is large in loss and inconvenient to replace. On the other hand, because this Q shape sub vehicle frame longeron is anomalous heterotypic structure, and it has one end and extends out and be the location section of bending structure, and the welding point is close to the location section again, if adopt conventional high frequency induction welding process to weld Q shape sub vehicle frame longeron, be difficult to with induced-current collection to welding point department, welding quality is relatively poor.
Disclosure of Invention
The invention aims to provide a welding process of a Q-shaped auxiliary frame longitudinal beam for a heavy-duty automobile, which is used for solving the technical problem of poor welding quality of a Q-shaped auxiliary frame longitudinal beam welding mode in the prior art.
The embodiment of the invention is realized by the following technical scheme:
the utility model provides a Q shape sub vehicle frame longeron welding process for heavy-duty car for the welding of Q shape sub vehicle frame longeron, includes following step:
s1, installing an induction coil, wherein the structure of the induction coil is similar to that of the Q-shaped auxiliary frame longitudinal beam, and the induction coil is connected with an external high-frequency welding machine;
s2, enabling the Q-shaped auxiliary frame longitudinal beam to penetrate through the induction coil, fixedly arranging a first magnetic rod inside the Q-shaped auxiliary frame longitudinal beam, wherein the first magnetic rod extends along the axial direction of the Q-shaped auxiliary frame longitudinal beam, and the first magnetic rod is used for gathering induction current to a region near a welding point of the Q-shaped auxiliary frame longitudinal beam;
s3, fixedly installing a second magnetic bar inside the induction coil, wherein the second magnetic bar is close to the welding point so that induction current is gathered to the welding point of the Q-shaped auxiliary frame longitudinal beam;
and S4, starting the external high-frequency welding machine to start welding the Q-shaped auxiliary frame longitudinal beam.
Optionally, after welding, the Q-shaped subframe longitudinal beam passes through at least one group of extrusion roller set, so as to extrude the welding point of the Q-shaped subframe longitudinal beam through the extrusion roller set.
Further, the extrusion roller group comprises a lower driving roller, a left positioning roller, a right positioning roller, a first upper extrusion roller and a second upper extrusion roller;
the lower transmission roller is positioned at the bottom of the Q-shaped auxiliary frame longitudinal beam, and the bottom surface of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the lower transmission roller;
the left positioning roller and the right positioning roller are respectively positioned on two sides of the Q-shaped auxiliary frame longitudinal beam, the outer wall of the left side of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the left positioning roller, and the outer wall of the right side of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the right positioning roller;
the first upper squeeze roll and the second upper squeeze roll are located above the Q-shaped auxiliary frame longitudinal beam, the top surface of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the first upper squeeze roll, and the positioning section of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the second upper squeeze roll.
Further, the Q-shaped auxiliary frame longitudinal beam extruded by the extrusion roller group is polished by at least one polishing roller group.
Further, the grinding roller group comprises a lower grinding roller, a left grinding roller, a right grinding roller and an upper grinding roller;
the lower grinding roller is positioned below the Q-shaped auxiliary frame longitudinal beam, and the bottom surface of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the lower grinding roller;
the left grinding roller and the right grinding roller are respectively positioned on two sides of the Q-shaped auxiliary frame longitudinal beam, the outer wall of the left side of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the left grinding roller, and the outer wall of the right side of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the right grinding roller;
the upper grinding roller is located above the Q-shaped auxiliary frame longitudinal beam, and the top surface of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the upper grinding roller.
Optionally, the distance between the left side of the Q-shaped subframe longitudinal beam and the induction coil and the distance between the bottom of the Q-shaped subframe longitudinal beam and the induction coil are both 5-10mm.
Optionally, the first cooling device is further included, and the first cooling device is used for cooling the first magnetic rod.
Furthermore, first cooling device includes first condenser tube, first condenser tube wears to locate inside and edge of first bar magnet the axial extension of first bar magnet, first condenser tube and outside water source intercommunication.
Optionally, the induction coil further comprises a second cooling device, and the second cooling device is used for cooling the second magnetic bar and the induction coil.
Furthermore, the second cooling device comprises a second cooling water pipe, the water outlet end of the second cooling water pipe faces the second magnetic bar and the induction coil, and the second cooling water pipe is communicated with an external water source.
The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:
according to the Q-shaped auxiliary frame longitudinal beam welding device, the Q-shaped auxiliary frame longitudinal beam with the special-shaped structure is welded by adopting a high-frequency induction welding process, on the basis of improving the welding efficiency and avoiding the poor phenomena of pits, scratches and the like on the surface of the welded Q-shaped auxiliary frame longitudinal beam, induced current is further gathered by arranging the second magnetic rod, and in the welding process, the induced current generated in the Q-shaped auxiliary frame longitudinal beam is gathered to the welding point of the Q-shaped auxiliary frame longitudinal beam as far as possible under the cooperative action of the first magnetic rod and the second magnetic rod, so that the welding effect is effectively improved, and the welding quality is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a conventional Q-shaped subframe rail according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a welding structure of a Q-shaped subframe longitudinal beam provided by the embodiment of the invention during welding;
FIG. 3 is a schematic structural diagram of a Q-shaped subframe stringer provided by an embodiment of the invention when extruded by a squeeze roller group;
fig. 4 is a schematic structural diagram of the Q-shaped subframe longitudinal beam polished by the polishing roller set according to the embodiment of the present invention.
Icon: 1-Q-shaped auxiliary frame longitudinal beam, 101-positioning section, 2-induction coil, 3-first magnetic rod, 4-first cooling water pipe, 5-second magnetic rod, 6-second cooling water pipe, 7-extrusion roller group, 701-lower driving roller, 702-left positioning roller, 703-right positioning roller, 7031-positioning section, 704-first upper extrusion roller, 705-second upper extrusion roller, 8-polishing roller group, 801-lower grinding roller, 802-left grinding roller, 803-right grinding roller, 804-upper grinding roller and F-welding point.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used, they are based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships usually placed when the products of this application are used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Examples
The embodiment provides a Q shape sub vehicle frame longeron welding process for heavy-duty car for the welding of Q shape sub vehicle frame longeron 1, including following step:
referring to fig. 2, firstly, an induction coil 2 required for high-frequency induction welding is prepared according to a profiling principle, and the structure of the induction coil 2 is similar to that of the Q-shaped subframe longitudinal beam 1, so that the Q-shaped subframe longitudinal beam 1 is covered by the induction coil 2, and the subsequent high-frequency induction welding is facilitated; and then connecting an induction coil 2 with an output polar plate of an external high-frequency welding machine (not shown in the figure), wherein the induction coil 2 is arranged on a motion path of the Q-shaped auxiliary frame longitudinal beam 1 formed by cold bending of the cold bending unit so as to weld the Q-shaped auxiliary frame longitudinal beam 1 formed by cold bending of the cold bending unit in time.
Secondly, continue to refer to fig. 2, Q shape sub vehicle frame longeron 1 through the forming of clod wash unit passes induction coil 2 to at 1 internal fixation of Q shape sub vehicle frame longeron set up first bar magnet 3, first bar magnet 3 is followed Q shape sub vehicle frame longeron 1 axial extension, and first bar magnet 3 is used for making Q shape sub vehicle frame longeron 1 go up the induced-current gathering that produces in all regions to near region of Q shape sub vehicle frame longeron 1 welding point F. It is understood that the first magnetic bar 3 may be disposed at a central position inside the Q-shaped subframe longitudinal beam 1, so that induced current generated from all areas of the Q-shaped subframe longitudinal beam 1 is collected to the vicinity of the welding point F of the Q-shaped subframe longitudinal beam 1 by the first magnetic bar 3.
It is understood that, in practical implementation, the first magnetic rod 3 may be fixed as needed, for example, one end of the first magnetic rod 3 extending in the axial direction of the Q-shaped subframe longitudinal beam 1 may be fixed to a part of the frame of the cold bending machine set, and the fixing manner of the first magnetic rod 3 is not limited herein.
It should be noted that, in consideration of the phenomenon that the Q-shaped subframe longitudinal beam 1 may bounce after being formed by cold bending through a cold bending unit, the section steels of the left side straight line section and the bottom straight line section of the Q-shaped subframe longitudinal beam 1 contact the induction coil 2 after bouncing, so that the welding quality is affected. Therefore, with reference to fig. 2, in this embodiment, the distance d1 between the left straight line segment of the Q-shaped subframe longitudinal beam 1 and the induction coil 2 is 5-10mm, and the distance d2 between the straight line segment of the bottom of the Q-shaped subframe longitudinal beam 1 and the induction coil 2 is also 5-10mm.
Meanwhile, in order to cool the first magnetic bar 3 in the welding process, with reference to fig. 2, the assembly for high-frequency induction welding further includes a first cooling device for cooling the first magnetic bar 3; this first cooling device includes first condenser tube 4, this 4 one end of first condenser tube and outside water source (not shown in the figure) intercommunication, first condenser tube 4's the other end is worn to locate first bar magnet 3 inside and is followed the axial extension of first bar magnet 3, in welding process, outside water source lasts to the inside cooling water that supplies of first condenser tube 4, and then utilizes first condenser tube 4 to play the effect of cooling first bar magnet 3, guarantees that first bar magnet 3 can last stable work among the welding process.
Considering that the conventional high-frequency induction welding process is often only provided with the magnetic rod inside the workpiece to be welded, and for the Q-shaped subframe longitudinal beam 1 with the special-shaped structure, only one magnetic rod is arranged, so that the induced current is difficult to be well gathered to the welding point F of the Q-shaped subframe longitudinal beam 1, and the actual welding quality is poor. For this reason, with continued reference to fig. 2, on the basis of the first magnetic bar 3, the second magnetic bar 5 is fixedly installed inside the induction coil 2, at this time, the second magnetic bar 5 is located between the induction coil 2 and the Q-shaped subframe longitudinal beam 1, and the second magnetic bar 5 is close to the welding point F of the Q-shaped subframe longitudinal beam 1, so that the induced current is gathered to the welding point F of the Q-shaped subframe longitudinal beam 1 through the second magnetic bar 5.
It is understood that, in practical implementation, the second magnetic rod 5 may be directly fixed on the inner wall of the induction coil 2 to simplify the installation process of the second magnetic rod 5, and the second magnetic rod 5 extends a distance along the axial direction of the Q-shaped subframe longitudinal beam 1. For example, the second magnetic bar 5 may be disposed at the inner wall of the induction coil 2 corresponding to the top end of the positioning section 101 of the Q-shaped subframe longitudinal beam 1, so as to further improve the effect of collecting the induced current by the second magnetic bar 5.
Meanwhile, in order to cool the second magnetic bar 5 and the induction coil 2 in the welding process, with reference to fig. 2, the assembly for high-frequency induction welding further includes a second cooling device for cooling the second magnetic bar 5 and the induction coil 2; this second cooling device includes at least one second condenser tube 6, 6 one end of this second condenser tube communicates with outside water source equally, the other end of second condenser tube 6 is as going out water end and towards second bar magnet 5 and induction coil 2, in welding process, outside water source lasts to the confession cooling water of second condenser tube 6, and then utilize second condenser tube 6 to last the spraying of cooling water to second bar magnet 5 and induction coil 2, in order to realize the cooling to second bar magnet 5 and induction coil 2, guarantee that second bar magnet 5 and induction coil 2 can last stable work among the welding process. Of course, in practical implementation, a plurality of second cooling water pipes 6 may be provided at the same time to improve the cooling effect, and the number of the second cooling water pipes 6 is not limited herein.
Treat induction coil 2, first bar magnet 3 and the equal back of installing of second bar magnet 5, start outside high frequency welding machine and begin to weld Q shape sub vehicle frame longeron 1, along with through the Q shape sub vehicle frame longeron of cold roll forming 1 is continuous to export from the cold bending machine group and pass induction coil 2, Q shape sub vehicle frame longeron 1 produced a large amount of induced-currents under induction coil 2's effect this moment, the induced-current of production gathers to Q shape sub vehicle frame longeron 1's welding point F department at the combined action of first bar magnet 3 and second bar magnet 5, the shaped steel of Q shape sub vehicle frame longeron 1 welding point F department is constantly heated and finally fuses together this moment.
Therefore, the welding process provided by the embodiment welds the Q-shaped auxiliary frame longitudinal beam 1 belonging to the special-shaped structure by adopting the high-frequency induction welding process, on the basis of improving the welding efficiency and avoiding the poor phenomena of pits, scratches and the like on the surface of the welded Q-shaped auxiliary frame longitudinal beam 1, induced current is further gathered by arranging the second magnetic rod 5, in the welding process, the induced current generated in the Q-shaped auxiliary frame longitudinal beam 1 is gathered to the welding point F of the Q-shaped auxiliary frame longitudinal beam 1 as far as under the cooperative action of the first magnetic rod 3 and the second magnetic rod 5, so that the welding effect is effectively improved, and the welding quality is improved.
On the other hand, in order to further improve the welding quality of the Q-shaped auxiliary frame longitudinal beam 1 after welding, after high-frequency induction welding, the Q-shaped auxiliary frame longitudinal beam 1 is required to pass through at least one group of extrusion roller set 7, so that the section steel at the welding point F of the Q-shaped auxiliary frame longitudinal beam 1 is extruded through the extrusion roller set 7, and the section steel at the welding point F of the Q-shaped auxiliary frame longitudinal beam 1 is better fused together. The number of the pinch roller sets 7 is not limited herein, and may be selected according to actual circumstances.
Specifically, referring to fig. 3, the squeeze roller group 7 includes a lower driving roller 701, a left positioning roller 702, a right positioning roller 703, a first upper squeeze roller 704, and a second upper squeeze roller 705. The lower transmission roller 701 is positioned at the bottom of the Q-shaped auxiliary frame longitudinal beam 1, and the bottom surface of the Q-shaped auxiliary frame longitudinal beam 1 is in contact with the outer wall of the lower transmission roller 701; the left positioning roller 702 and the right positioning roller 703 are respectively positioned at two sides of the Q-shaped auxiliary frame longitudinal beam 1, the outer wall of the left side of the Q-shaped auxiliary frame longitudinal beam 1 is contacted with the outer wall of the left positioning roller 702, and the outer wall of the right side of the Q-shaped auxiliary frame longitudinal beam 1 is contacted with the outer wall of the right positioning roller 703; the first upper squeeze roller 704 and the second upper squeeze roller 705 are located above the Q-shaped subframe longitudinal beam 1, the top surface of the Q-shaped subframe longitudinal beam 1 is in contact with the outer wall of the first upper squeeze roller 704, and the positioning section 101 of the Q-shaped subframe longitudinal beam 1 is in contact with the outer wall of the second upper squeeze roller 705.
When the Q-shaped auxiliary frame longitudinal beam 1 passes through the extrusion roller group 7, the section steel at the welding point F of the Q-shaped auxiliary frame longitudinal beam 1 is extruded and fused together under the matching action of the lower transmission roller 701, the first upper extrusion roller 704 and the second upper extrusion roller 705, and the left positioning roller 702 and the right positioning roller 703 can effectively prevent the Q-shaped auxiliary frame longitudinal beam 1 from deviating. Extrude Q shape sub vehicle frame longeron 1 top through setting up first last squeeze roll 704 and be the straightway of horizontality to extrude Q shape sub vehicle frame longeron 1's location section 101 through setting up squeeze roll 705 on the second, can make the better integration of shaped steel of Q shape sub vehicle frame longeron 1's welding point F department together, with the further shaping quality that improves Q shape sub vehicle frame longeron 1.
It should be noted that the right positioning roller 703 is further provided with a positioning portion 7031 corresponding to the positioning section 101 of the Q-shaped subframe longitudinal beam 1, and during the extrusion process, the positioning portion 7031 abuts against the positioning section 101 of the Q-shaped subframe longitudinal beam 1, so as to ensure the stability of the Q-shaped subframe longitudinal beam 1 during the extrusion process.
The Q-shaped sub frame side member 1 after high frequency induction welding and extrusion molding should be ground by at least one set of grinding roller sets 8, and the number of the grinding roller sets 8 may be selected according to actual conditions, and is not limited herein.
Specifically, referring to fig. 4, the grinding roll group 8 includes a lower grinding roll 801, a left grinding roll 802, a right grinding roll 803, and an upper grinding roll 804. The lower grinding roller 801 is positioned below the Q-shaped auxiliary frame longitudinal beam 1, and the bottom surface of the Q-shaped auxiliary frame longitudinal beam 1 is in contact with the outer wall of the lower grinding roller 801; the left grinding roller 802 and the right grinding roller 803 are respectively positioned at two sides of the Q-shaped auxiliary frame longitudinal beam 1, the outer wall of the left side of the Q-shaped auxiliary frame longitudinal beam 1 is contacted with the outer wall of the left grinding roller 802, and the outer wall of the right side of the Q-shaped auxiliary frame longitudinal beam 1 is contacted with the outer wall of the right grinding roller 803; go up grinding roller 804 and be located Q shape sub vehicle frame longeron 1 top, Q shape sub vehicle frame longeron 1's top surface and the outer wall contact of last grinding roller 804.
When the Q-shaped auxiliary frame longitudinal beam 1 passes through the polishing roller group 8, the bottom surface, the left surface, the right surface and the top surface which is in a horizontal straight line section of the Q-shaped auxiliary frame longitudinal beam 1 are polished by the lower grinding roller 801, the left grinding roller 802, the right grinding roller 803 and the upper grinding roller 804, so that the appearance quality of the finally formed Q-shaped auxiliary frame longitudinal beam 1 is ensured to meet the design requirements.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a Q shape sub vehicle frame longeron welding process for heavy-duty car for the welding of Q shape sub vehicle frame longeron, its characterized in that includes following step:
s1, installing an induction coil, wherein the structure of the induction coil is similar to that of the Q-shaped auxiliary frame longitudinal beam, and the induction coil is connected with an external high-frequency welding machine;
s2, enabling the Q-shaped auxiliary frame longitudinal beam to penetrate through the induction coil, fixedly arranging a first magnetic rod inside the Q-shaped auxiliary frame longitudinal beam, wherein the first magnetic rod extends along the axial direction of the Q-shaped auxiliary frame longitudinal beam, and the first magnetic rod is used for gathering induction current to a region near a welding point of the Q-shaped auxiliary frame longitudinal beam;
s3, fixedly installing a second magnetic bar in the induction coil, wherein the second magnetic bar is located between the induction coil and the Q-shaped auxiliary frame longitudinal beam and is close to the welding point so that induced current is gathered to the welding point of the Q-shaped auxiliary frame longitudinal beam;
and S4, starting the external high-frequency welding machine to start welding the Q-shaped auxiliary frame longitudinal beam.
2. The process of welding Q subframe stringers for heavy-duty vehicles according to claim 1, wherein after welding, the Q subframe stringers pass through at least one set of squeeze roller sets to squeeze the weld points of the Q subframe stringers by the squeeze roller sets.
3. The process for welding the Q-shaped auxiliary frame longitudinal beams for the heavy-duty automobile according to claim 2, wherein the squeeze roller group comprises a lower driving roller, a left positioning roller, a right positioning roller, a first upper squeeze roller and a second upper squeeze roller;
the lower transmission roller is positioned at the bottom of the Q-shaped auxiliary frame longitudinal beam, and the bottom surface of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the lower transmission roller;
the left positioning roller and the right positioning roller are respectively positioned on two sides of the Q-shaped auxiliary frame longitudinal beam, the outer wall of the left side of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the left positioning roller, and the outer wall of the right side of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the right positioning roller;
the first upper squeeze roll and the second upper squeeze roll are located above the Q-shaped auxiliary frame longitudinal beam, the top surface of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the first upper squeeze roll, and the positioning section of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the second upper squeeze roll.
4. The process of welding the Q-shaped subframe rail for the heavy-duty vehicle as claimed in claim 2, wherein the Q-shaped subframe rail after being pressed by the squeeze roller set is further subjected to polishing by at least one polishing roller set.
5. The process for welding the Q-shaped auxiliary frame longitudinal beams for the heavy-duty automobile according to claim 4, wherein the grinding roller group comprises a lower grinding roller, a left grinding roller, a right grinding roller and an upper grinding roller;
the lower grinding roller is positioned below the Q-shaped auxiliary frame longitudinal beam, and the bottom surface of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the lower grinding roller;
the left grinding roller and the right grinding roller are respectively positioned on two sides of the Q-shaped auxiliary frame longitudinal beam, the outer wall of the left side of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the left grinding roller, and the outer wall of the right side of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the right grinding roller;
the upper grinding roller is located above the Q-shaped auxiliary frame longitudinal beam, and the top surface of the Q-shaped auxiliary frame longitudinal beam is in contact with the outer wall of the upper grinding roller.
6. The process for welding the Q-shaped auxiliary frame longitudinal beam for the heavy-duty automobile according to claim 1, wherein the distance between the left side of the Q-shaped auxiliary frame longitudinal beam and the induction coil and the distance between the bottom of the Q-shaped auxiliary frame longitudinal beam and the induction coil are 5-10mm.
7. The process for welding the Q-shaped subframe longitudinal beam for the heavy-duty vehicle as claimed in claim 1, further comprising a first cooling device for cooling the first magnetic rod.
8. The welding process of the Q-shaped auxiliary frame longitudinal beam for the heavy-duty automobile according to claim 7, wherein the first cooling device comprises a first cooling water pipe, the first cooling water pipe penetrates through the inside of the first magnetic rod and extends along the axial direction of the first magnetic rod, and the first cooling water pipe is communicated with an external water source.
9. The process for welding Q-shaped subframe stringers for heavy-duty vehicles according to claim 1, further comprising a second cooling device for cooling the second magnetic bar and the induction coil.
10. The welding process of the Q-shaped auxiliary frame longitudinal beam for the heavy-duty automobile according to claim 9, wherein the second cooling device comprises a second cooling water pipe, a water outlet end of the second cooling water pipe faces the second magnetic rod and the induction coil, and the second cooling water pipe is communicated with an external water source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111555835.XA CN114054924B (en) | 2021-12-17 | 2021-12-17 | Welding process for Q-shaped auxiliary frame longitudinal beam for heavy-duty automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111555835.XA CN114054924B (en) | 2021-12-17 | 2021-12-17 | Welding process for Q-shaped auxiliary frame longitudinal beam for heavy-duty automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114054924A CN114054924A (en) | 2022-02-18 |
| CN114054924B true CN114054924B (en) | 2022-12-23 |
Family
ID=80229799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111555835.XA Active CN114054924B (en) | 2021-12-17 | 2021-12-17 | Welding process for Q-shaped auxiliary frame longitudinal beam for heavy-duty automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114054924B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101989686A (en) * | 2009-07-30 | 2011-03-23 | 淮北钛钴新金属有限公司 | Explosive composite superplastic forming electric power irregularly-shaped copper and aluminum parallel groove clamp and manufacturing method thereof |
| CN113579658A (en) * | 2021-08-06 | 2021-11-02 | 四川攀钢嘉德精工科技有限公司 | Steel plate deformation process |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA779472A (en) * | 1968-02-27 | M. O'neill Roger | Impeder device for improving radio-frequency induction welding | |
| JP3052555B2 (en) * | 1992-04-07 | 2000-06-12 | 株式会社明電舎 | Manufacturing method of small-diameter ERW pipe |
| CN1280888A (en) * | 1999-07-18 | 2001-01-24 | 张少渊 | 4-roller (cross) finishing mill with adjustable dual-driven input axles for H-shaped section |
| JP4780952B2 (en) * | 2004-11-26 | 2011-09-28 | 株式会社中田製作所 | Square tube forming roll, square tube roll forming method and forming apparatus |
| CN102357695B (en) * | 2011-10-19 | 2014-01-29 | 黄一淼 | Method and device for soldering metal parts and components by adopting high-frequency induction brazing |
| CN210099206U (en) * | 2019-02-28 | 2020-02-21 | 燕山大学 | Copying coil device for induction welding of H-shaped steel |
| CN113600991B (en) * | 2021-08-29 | 2022-12-06 | 绍兴钱江亚润家居用品有限公司 | Steel pipe high-frequency induction welding device |
-
2021
- 2021-12-17 CN CN202111555835.XA patent/CN114054924B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101989686A (en) * | 2009-07-30 | 2011-03-23 | 淮北钛钴新金属有限公司 | Explosive composite superplastic forming electric power irregularly-shaped copper and aluminum parallel groove clamp and manufacturing method thereof |
| CN113579658A (en) * | 2021-08-06 | 2021-11-02 | 四川攀钢嘉德精工科技有限公司 | Steel plate deformation process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114054924A (en) | 2022-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104384740B (en) | EMUs drivers' cab constructed of aluminium roof assembly-welding processing method | |
| US9085220B2 (en) | Door sash | |
| CN100581717C (en) | Technique of hot rolled plate and linear cooling bed for manufacturing trolley track girder | |
| CN114054924B (en) | Welding process for Q-shaped auxiliary frame longitudinal beam for heavy-duty automobile | |
| CN206106853U (en) | Swing arm assembly under before electric automobile | |
| CN216421386U (en) | Welding assembly for welding Q-shaped auxiliary frame longitudinal beam | |
| CN102515021A (en) | Main girder of single-girder crane | |
| CN111531261B (en) | Welding process for QP980 quenched distribution steel for automobile | |
| CN106624479B (en) | 100% low-floor chassis front end multilayer assembly welding technique | |
| CN202322016U (en) | Main beam of single-beam crane | |
| CN209037669U (en) | Dress clod wash Q shape subframe longitudinal beam on a kind of heavy truck automobile | |
| CN202015895U (en) | Combined type electrode used for spot welding of automotive rear partition board connection plate | |
| CN205292652U (en) | Rail vehicle automobile body door corner structure | |
| CN208556491U (en) | A kind of vehicle end welding of underframe tooling | |
| CN207577705U (en) | A kind of commercial car bumper holder welding assembly | |
| CN218703231U (en) | Rail vehicle laser welding stainless steel side wall structure | |
| CN218343506U (en) | Draw beam and underframe of railway vehicle and railway vehicle | |
| CN216301363U (en) | Novel front fork structure of electric two-wheeled bicycle | |
| CN220862974U (en) | Submerged arc welding trolley track fixing device | |
| CN217828852U (en) | Model car copper car weldment structure | |
| CN202743401U (en) | Integrated elbow beam frame | |
| CN212330080U (en) | Car window frame welding cooperation structure | |
| CN213827745U (en) | Draw beam welding tool | |
| CN113996928B (en) | Integral compacting device and method for stainless steel side wall laser lap welding | |
| CN218777590U (en) | Improved aluminum alloy auxiliary frame |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |