A welding device for processing automobile cross beam

Abstract

The present invention relates to the technical field of tooling equipment, and proposes a welding device for processing automobile cross beams, which is used for welding the weld of the cross beam, wherein the weld has a curved section and a straight section that are interconnected, and both the curved section and the straight section have a welding position, and the welding position is located on the same side of the weld; the curved section and the straight section of the first beam body and the second beam body are distributed at the same position; the welding device is movably arranged, and has a welding head and a moving part, and the movement of the welding device makes the welding head always face the welding position of the first beam body; the feeler is movably arranged, and has a feeler probe, and the width of the feeler probe is smaller than the width of the weld, so that the feeler can extend into the weld of the second beam body, and the feeler probe abuts against the side of the weld. One end of the connecting piece is arranged on the moving part, and the other end is arranged on the feeler, so that after the feeler moves, the welding device moves with it, which effectively reduces the long cross beam weld, and the local bending and deflection are prone to occur, which aggravates the occurrence of inaccurate positioning of welding points and poor weld formation.

Description

Technical Field

[0001] The invention relates to the technical field of tooling equipment, and in particular to a welding device for processing an automobile crossbeam. Background Art

[0002] In recent years, with the rapid development of industrial automation technology, robot welding has been increasingly used in the automotive manufacturing industry. Especially in the processing of automotive crossbeams, which are key components in the chassis structure of the vehicle, responsible for supporting the vehicle body and improving the rigidity and stability of the vehicle. In the automotive manufacturing process, the welding quality of the crossbeam directly affects the safety performance and service life of the vehicle. Therefore, it is crucial to ensure the high precision and high quality of the crossbeam welding.

[0003] The fluctuation of the accuracy of the beam parts themselves has a significant impact on the welding quality. The size error and shape accuracy of the parts lead to poor weld quality, which may cause discontinuous and uneven welds; insufficient surface finish and flatness may cause the robot welding head to not fit the part surface well, especially the long crossbeam welds, which are prone to bending and deflection in some parts, with an error of about ±5 mm, which further aggravates the problems of inaccurate welding point positioning and poor weld formation. Summary of the invention

[0004] The present invention provides a welding device for processing automobile cross beams, which effectively reduces the problem that the cross beam welds are long and prone to local bending and deflection, further aggravating the occurrence of inaccurate welding point positioning and poor weld formation.

[0005] The technical solution of the present invention is as follows: A welding device for processing an automobile cross beam, used for welding a weld of the cross beam, the weld having a curved section and a straight section connected to each other, the curved section and the straight section both having a welding position, the welding positions of the curved section and the straight section both being located on the same side of the weld, the cross beam being divided into a first beam body and a second beam body, the curved section and the straight section of the first beam body and the second beam body being distributed at the same position; comprising:

[0006] A welding device, which is movably arranged and comprises a welding head and a moving part, and the movement of the welding device makes the welding head always face the welding position of the first beam body;

[0007] A feeler, the feeler is movably arranged, the feeler has a feeler head, the width of the feeler head is smaller than the width of the weld, so that the feeler can extend into the weld of the second beam, and the feeler head abuts against the side of the weld;

[0008] A connecting piece, one end of which is arranged on the moving part, and the other end of which is arranged on the feeler, so that after the feeler moves, the welding device follows the movement.

[0009] Optionally, the probe head has a grinding portion, and the grinding portion is used to abut against the side and / or outer surface of the weld bead, and further includes:

[0010] A base is provided with a processing position, wherein the processing position is used to place the second beam body, and the end surface of the second beam body where the weld bead is located is perpendicular to the ground or faces the ground.

[0011] Optionally, the base further has a welding position, the welding position is used to place the first beam body, and the moving direction of the welding device is parallel to the moving direction of the feeler; and further includes:

[0012] A mounting frame, the mounting frame is rotatably arranged on the base and the rotating shaft is parallel to the ground, the mounting frame has two mounting parts, the mounting parts are used to carry the crossbeam, after the mounting frame rotates, the two mounting parts are respectively located at the processing position and the welding position, and the processing position and the welding position are arranged at intervals along the height direction;

[0013] A rod shaft is arranged on the base, and the middle part of the connecting member is rotatably arranged on the rod shaft, so that the moving directions of the welding device and the feeler are opposite.

[0014] Optionally, both ends of the connecting piece have connecting holes, the connecting holes are long strips, the welding device has a first connecting column, the probe has a second connecting column, the first connecting column and the second connecting column are movably arranged in the connecting hole, and the diameters of the first connecting column and the second connecting column are the same as the width of the connecting hole.

[0015] Optionally, it also includes:

[0016] A plate, the plate is arranged to move on the base and is located on the moving path of the feeler, and the plate moves closer to or farther from the feeler;

[0017] An elastic member, one end of which is arranged on the sensing member, and the other end of which is arranged on the plate, is used to provide elastic force for the sensing member to approach or move away from the plate.

[0018] Optionally, the base has a first track and a second track, and the first track and the second track are both parallel to the weld bead; and further comprises:

[0019] A first base, wherein the first base is movably disposed on the first track, the welding device is movably disposed on the first base, and the moving direction of the welding device is perpendicular to the moving direction of the first base;

[0020] The second base is movably arranged on the second track, the feeler is movably arranged on the second base, and the moving direction of the feeler is perpendicular to the moving direction of the second base.

[0021] Optionally, the base has a storage space, which is located on both sides of the mounting frame, and the storage space is larger than the volume of the welding device and the probe, so that the welding device and the probe move into the storage space and away from the mounting frame.

[0022] Optionally, it also includes:

[0023] A linear pusher, wherein the linear pusher is provided in plurality and all are arranged on the base and distributed on both sides of the processing position and the welding position, and are used for pushing and fixing both sides of the crossbeam;

[0024] There are at least two pressing pieces, both of which are arranged on the base and located on both sides of the welding position. The pressing pieces are movable or swingable, and after moving or swinging, they are abutted and pressed against the end surface where the weld is located.

[0025] Optionally, both sides of the weld are beam portions, the pressing piece has pressing portions, the number of the pressing portions is the same as the number of the beam portions, and after the pressing piece moves or swings, a plurality of the pressing portions respectively press a plurality of the beam portions, and there are intervals between adjacent pressing portions, and the size of the intervals is larger than the size of the welding head.

[0026] Optionally, it also includes:

[0027] An adjusting member is movably arranged on the pressing portion, and after the adjusting member moves, one end thereof extends out of or stops extending out of the pressing portion, so as to replace the pressing portion and abut against the beam portion.

[0028] The working principle and beneficial effects of the present invention are:

[0029] In the present invention, the crossbeam has a long weld bead, which should be straight in an ideal state. When using a welding device to weld the weld bead, it is first necessary to determine the welding position and adjust the angle and distance between the welding head and the welding position to achieve a better welding effect. Then, the crossbeam is kept fixed and the welding device is moved to complete the welding of the weld bead. However, in the actual welding process, due to the influence of processing accuracy, the weld bead may be uneven and partially curved, that is, the whole may be partially curved and partially straight. The deviation value of the curved section and the straight section caused by the size of the product itself is about 3mm. Combined with the fact that the surface of the product may have insufficient flatness and smoothness, the deviation will be further enlarged, making the error about 5mm, thereby affecting the welding accuracy. The crossbeam is a key part of the automobile structure, responsible for supporting the body and improving the rigidity and stability of the whole vehicle. It may cause the weld to be discontinuous and uneven, thereby resulting in a decrease in accuracy and affecting the molding quality of the crossbeam. The use of a robotic arm can reduce the error, but its procurement cost is relatively high. Therefore, this scheme designs an overall equipment scheme of a feeler, a connector and a welding device.

[0030] The welding device is used to weld the weld of the first beam body. The position and orientation of the welding head can be set first so that it is optimally oriented toward the welding position of the first beam body. The feeler probe of the feeler piece is used to extend into the weld of the second beam body and always abut against the side of the weld of the second beam body. This can be achieved by means of elastic parts, etc. When the feeler probe passes through the welding position of the curved segment, the feeler piece will move accordingly and synchronously drive the welding device to move through the connecting piece, and adjust the welding position of the welding device in real time so that the welding head always maintains a relatively stable angle and distance toward the welding position of the first beam body. With the guidance of the feeler piece, the welding device moves along the weld and performs the welding operation. During the whole process, the position of the welding device is continuously adjusted to adapt to the actual path of the weld, thereby improving the welding quality and efficiency and effectively reducing the influence of the curved and straight segments of the weld on the welding accuracy.

[0031] The curved sections and straight sections of the first beam and the second beam are distributed in the same position. Therefore, beams produced in the same batch or adjacently can be selected. According to actual test data, the length deviation of beams produced in the same batch or adjacently can be controlled within ±0.1% to ±0.3%. Through real-time feedback from the feeler, the welding device can track the actual path of the weld. Even if there is a slight bend or irregularity in the weld, the quality of the weld can be guaranteed, and the problems of discontinuity and unevenness can be reduced. Compared with traditional manual adjustment or high-cost robotic arm solutions, this device can increase welding speed and shorten production cycles while ensuring welding quality. Compared with high-cost robotic arm solutions, the overall cost is still low and suitable for large-scale production applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0033] Figure 1 This is a schematic diagram of the structure of the present invention from a first viewing angle;

[0034] Figure 2 It is a schematic diagram of the structure of the second viewing angle of the present invention;

[0035] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure of I in the figure;

[0036] Figure 4 This is a schematic diagram of the structure of the present invention from a third viewing angle;

[0037] Figure 5 for Figure 4 The schematic diagram of the partial enlarged structure of middle Ⅱ;

[0038] Figure 6 It is a partial structural schematic diagram of the present invention;

[0039] Figure 7 It is a schematic diagram of the local working position of grinding and welding of the present invention;

[0040] Figure 8 It is a schematic diagram of the structure from the fourth viewing angle of the present invention.

[0041] In the figure: 1, weld bead; 101, beam; 2, curved section; 3, straight section; 5, first beam body; 6, second beam body; 7, welding device; 701, welding head; 702, moving part; 703, first connecting column; 8, feeler; 801, feeler head; 802, second connecting column; 9, connecting part; 901, connecting hole; 10, base; 1001, processing position; 1002, welding position; 1003, first track; 1004, second track; 1005, storage space; 11, mounting frame; 1101, mounting part; 12, rod shaft; 13, plate; 14, elastic part; 15, first base; 16, second base; 17, linear push member; 18, pressing member; 1801, pressing part; 19, adjusting member. DETAILED DESCRIPTION

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0043] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0044] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0046] Reference Figure 1 to Figure 8 A welding device 7 for processing a cross beam of an automobile is proposed, which is used for welding a weld bead 1 of a cross beam. The weld bead 1 has a curved section 2 and a straight section 3 that are interconnected. The curved section 2 and the straight section 3 both have a welding position 1002, and the welding position 1002 is located on the same side of the weld bead 1; the curved section 2 and the straight section 3 of the first beam body 5 and the second beam body 6 are distributed at the same position; the welding device 7 is movably arranged, and has a welding head 701 and a moving part 702. The movement of the welding device 7 makes the welding head 701 always face the welding position 1002 of the first beam body 5; the feeler 8 is movably arranged, and the feeler 8 has a feeler probe 801. The width of the feeler probe 801 is smaller than the width of the weld bead 1, so that the feeler 8 can extend into the weld bead 1 of the second beam body 6, and the feeler probe 801 abuts against the side of the weld bead 1. One end of the connecting member 9 is arranged on the moving part 702, and the other end is arranged on the feeler 8, so that after the feeler 8 moves, the welding device 7 moves accordingly.

[0047] In this embodiment, the crossbeam has a long weld bead 1, and the weld bead 1 should be straight in an ideal state. When the welding device 7 is used to weld the weld bead 1, it is first necessary to determine the welding position 1002, and adjust the angle and distance between the welding head 701 and the welding position 1002 to achieve a better welding effect. Then, the crossbeam is kept fixed and the welding device 7 is moved to complete the welding of the weld bead 1. However, in the actual welding process, due to the influence of the processing accuracy, the weld bead 1 may be uneven and partially curved, that is, the whole may be a partial curved section 2 and a partial straight section 3. The deviation of the curved section 2 and the straight section 3 caused by the body size is about 3mm. Combined with the possible lack of flatness and smoothness on the product surface, the deviation will be further enlarged, making the error about 5mm, thus affecting the welding accuracy. The crossbeam, as a key part of the automobile structure, is responsible for supporting the body and improving the rigidity and stability of the vehicle. It may cause discontinuity and unevenness in the weld, resulting in a decrease in accuracy and affecting the forming quality of the crossbeam. The use of a robotic arm will reduce the error, but its procurement cost is relatively high. Therefore, this scheme designs an overall equipment solution of a probe 8, a connector 9 and a welding device 7.

[0048] The welding device 7 is used for welding the weld of the first beam body 5. The position and orientation of the welding head 701 can be set first so that it is optimally oriented toward the welding position 1002 of the first beam body 5. The feeler probe 801 of the feeler piece 8 is used to extend into the weld 1 of the second beam body 6 and always abut against the side of the weld 1 of the second beam body 6. This can be achieved by means of an elastic member 14 or the like. When the feeler probe 801 passes through the welding position 1002 of the curved segment 2, the feeler piece 8 will move accordingly and synchronously drive the welding device 7 to move through the connecting member 9, and adjust the welding position 1002 of the welding device 7 in real time so that the welding head 701 always maintains a relatively stable angle and distance toward the welding position 1002 of the first beam body 5. With the guidance of the feeler piece 8, the welding device 7 moves along the weld 1 and performs the welding operation. During the whole process, the position of the welding device 7 is continuously adjusted to adapt to the actual path of the weld 1, thereby improving the welding quality and efficiency and effectively reducing the influence of the curved segment 2 and the straight segment of the weld 1 on the welding accuracy.

[0049] The curved section 2 and the straight section 3 of the first beam 5 and the second beam 6 are distributed at the same position. Therefore, beams produced in the same batch or adjacently can be selected. According to actual test data, the length deviation of beams produced in the same batch or adjacently can be controlled within ±0.1% to ±0.3%. Through the real-time feedback of the feeler 8, the welding device 7 can track the actual path of the weld 1. Even if the weld 1 is slightly bent or irregular, the quality of the weld can be guaranteed, and the problems of discontinuity and unevenness can be reduced. Compared with the traditional manual adjustment or the high-cost robotic arm solution, this device can improve the welding speed and shorten the production cycle while ensuring the welding quality. Compared with the high-cost robotic arm solution, the overall cost is still low and suitable for large-scale production applications.

[0050] Further, the probe head 801 has a grinding part, which is used to abut against the side and / or outer surface of the weld 1; the base 10 has a processing position 1001, and the second beam body 6 is located at the processing position 1001, and the end face of the weld 1 in the second beam body 6 is perpendicular to the ground or facing the ground. The base 10 also has a welding position 1002, and the moving direction of the welding device 7 is parallel to the moving direction of the probe 8; the mounting frame 11 is rotatably set on the base 10 and the rotating shaft is parallel to the ground. The mounting frame 11 has two mounting parts 1101, and the mounting parts 1101 are used to carry the crossbeam. After the mounting frame 11 rotates, the two mounting parts 1101 are respectively located at the processing position 1001 and the welding position 1002, and the processing position 1001 and the welding position 1002 are arranged at intervals in the height direction. The rod shaft 12 is set on the base 10, and the middle part of the connecting member 9 is rotatably set on the rod shaft 12, so that the moving directions of the welding device 7 and the probe 8 are opposite.

[0051] In this embodiment, the mounting frame 11 has two mounting parts 1101, which are respectively used to carry the first beam body 5 and the second beam body 6. After the mounting frame 11 rotates, it drives the first beam body 5 and the second beam body 6 to enter the welding position 1002 and the processing position 1001 respectively. The first beam body 5 is located at the upper part of the base 10, and the second beam body 6 is located at the lower part of the base 10. The end face of the weld bead 1 in the second beam body 6 is perpendicular to the ground or faces the ground. The purpose is that after the grinding part grinds the weld bead 1, impurities such as iron filings will naturally fall down under the action of gravity instead of being left near the weld bead 1 to avoid affecting welding. At the same time, the probe 801 moves along the weld bead 1 When the second beam body 6 is ground by the grinding part, the welding device 7 is welding the first beam body 5. The grinding will be completed synchronously with the welding. After completion, the mounting frame 11 is rotated so that the second beam body 6 enters the welding position 1002 for welding, and the first beam body 5 enters the processing position 1001 and unloads. In the process of the second beam body 6 rotating from the processing position 1001 to the welding position 1002, its own movement will further cause impurities such as iron filings to fall. Through rotation and grinding, the flatness and finish near the weld 1 are improved, so that the welding head 701 can better fit the welding position 1002, effectively improving the welding accuracy and welding quality. At the same time, the middle part of the connector 9 is rotatably set on the rod shaft 12. Preferably, the connector 9 adopts a rod instead of a gear rack, etc., in order to avoid the loss of quantity during the transmission process. Preferably, the grinding part can be set to have a certain roughness, which can be performed on the side of the weld 1.

[0052] The probe head 801 has a grinding part, and the grinding part is used to abut against the side and / or outer surface of the weld bead 1. The probe head 801 achieves continuous contact with the weld bead 1 through mechanisms such as the elastic member 14. When the probe head 801 moves along the weld bead 1, the grinding part grinds the side and / or outer surface of the weld bead 1, which can remove impurities and uneven parts on the surface to a certain extent. In this solution, only the side of the weld bead 1 is grinded. If it is necessary to grind the outer surface of the weld bead 1, a grinding piece can be added, so that when the probe head 801 extends into the weld bead 1 and abuts against the side of the weld bead 1, the grinding piece can be synchronously abutted against the outer surface of the weld bead 1.

[0053] The base 10 is provided with a processing position 1001 and a welding position 1002. The processing position 1001 is used to place the second beam body 6, and the end face of the weld bead 1 of the second beam body 6 is perpendicular to the ground or facing the ground, so that the grinding part of the feeler head 801 can contact the weld bead 1. The welding position 1002 is used to place the first beam body 5, and the moving direction of the welding device 7 is parallel to the moving direction of the feeler 8. The first beam body 5 is located at the upper part of the base 10, and the second beam body 6 is located at the lower part of the base 10. The middle part of the connecting member 9 is rotatably arranged on the rod shaft 12 on the base 10, so that the moving directions of the welding device 7 and the feeler 8 are opposite.

[0054] When the mounting frame 11 rotates, the first beam body 5 enters the welding position 1002, and the welding device 7 starts to weld the first beam body 5. At the same time, the second beam body 6 enters the processing position 1001, and the probe head 801 grinds the weld 1 of the second beam body 6. The end face of the weld 1 of the second beam body 6 is perpendicular to the ground or facing the ground. When the grinding part grinds the weld 1, impurities such as iron filings will naturally fall under the action of gravity to avoid remaining near the weld 1 and affecting the welding quality. After the mounting frame 11 rotates, the second beam body 6 enters the welding position 1002 from the processing position 1001, and the first beam body 5 enters the processing position 1001 from the welding position 1002 and unloads. During the rotation of the second beam body 6, its own movement will further cause impurities such as iron filings to fall, further improving the flatness and smoothness of the weld 1.

[0055] The grinding part of the feeler probe 801 grinds the weld 1 before welding to remove impurities and uneven parts on the surface, making the weld 1 smoother and neater, thereby improving the welding accuracy. During the movement of the feeler 8, the position of the welding device 7 is adjusted in real time through the connector 9 to ensure that the welding head 701 is always close to the welding position 1002 of the first beam 5 at a stable angle and distance, reducing the welding error caused by the change in the shape of the weld 1. While the feeler probe 801 grinds the weld 1 of the second beam 6, the welding device 7 welds the first beam 5, achieving the synchronous completion of grinding and welding, and improving production efficiency. The rotating design of the mounting frame 11 allows the first beam 5 and the second beam 6 to switch positions quickly, reducing the time for loading and unloading, and further improving the welding efficiency. By improving the welding accuracy and quality, the scrap rate is reduced and the production cost is reduced. The device is not only suitable for standard straight welds 1, but also can process complex welds 1 containing curved segments 2, and has strong adaptability. The connector 9 uses rods instead of gear racks to avoid the loss of quantity during the transmission process and improve the accuracy of the transmission. The grinding portion can be set to have a certain degree of roughness, so that the side of the weld bead 1 can be more effectively ground, further improving the flatness and smoothness of the weld bead 1.

[0056] It is worth noting that the two sides of the weld bead 1 are marked as A and B respectively. When the touch probe 801 abuts against the side A of the weld bead 1 of the second beam 6 located at the lower part of the base 10, the welding head 701 is close to the side B of the weld bead 1 of the first beam 5 located at the upper part of the base 10. Therefore, when the touch probe 801 moves due to the curved segment 2, the welding head 701 will move in the opposite direction synchronously. Therefore, the rod shaft 12 is set, and the middle part of the connecting member 9 is rotated and set on the rod shaft 12, so that the welding head 701 and the touch probe 801 can move in opposite directions. Improved accuracy.

[0057] Furthermore, both ends of the connecting member 9 have connecting holes 901, and the connecting holes 901 are long strips. The welding device 7 has a first connecting column 703, and the feeler 8 has a second connecting column 802, and the first connecting column 703 and the second connecting column 802 are movably arranged in the connecting hole 901, and the diameters of the first connecting column 703 and the second connecting column 802 are the same as the width of the connecting hole 901.

[0058] In this embodiment, when the connecting member 9 rotates with the rod shaft 12 as the rotation axis, the first connecting column 703 and the second connecting column 802 will move relative to each other in the connecting hole 901. The long connecting hole 901 provides the necessary space for such relative movement. Since the width of the connecting hole 901 is the same as the diameter of the first connecting column 703 and the second connecting column 802, it is ensured that when the connecting member 9 rotates, the first connecting column 703 and the second connecting column 802 can accurately transmit the movement.

[0059] Furthermore, the plate 13 is arranged to move on the base 10 and is located on the moving path of the feeler 8. After the plate 13 moves, it approaches or moves away from the feeler 8. One end of the elastic member 14 is arranged on the feeler 8, and the other end is arranged on the plate 13, which is used to provide elastic force for the feeler 8 to approach or move away from the plate 13.

[0060] In this embodiment, the plate 13 is used as a basis, and is connected to one end of the feeler 8 through an elastic member 14. The feeler head 801 can adapt to the curved segment 2 and the straight segment through elastic action. As a preferred embodiment, a compression spring or a tension spring can be used. The movement of the plate 13 can be achieved through a linear drive, such as a cylinder, an electric push rod, etc. The linear drive can accurately control the moving distance of the plate 13, and its movement can drive the feeler 8 to achieve a certain distance of displacement as a whole. It is suitable for a beam with multiple welds 1, and adjacent welds 1 are parallel to each other and have a certain interval. Through the design of the elastic member 14 and the plate 13, the feeler head 801 can flexibly adapt to the curved segment 2 and the straight segment of the weld 1, maintain close contact with the weld 1, and reduce welding errors. The movement of the feeler 8 is transmitted to the welding device 7 through the elastic member 14, ensuring that the welding device 7 can adjust its position in real time, adapt to the changes in the weld 1, and improve the welding accuracy. By moving the plate 13, the feeler 8 can quickly switch to a different weld bead 1, which is suitable for a beam having multiple weld bead 1 with adjacent weld bead 1 being parallel to each other and having a certain interval, thereby improving welding efficiency.

[0061] Furthermore, the base 10 has a first track 1003 and a second track 1004, and the first track 1003 and the second track 1004 are both parallel to the weld bead 1; the first base 15 is movably set on the first track 1003, and the welding device 7 is movably set on the first base 15, and the moving direction of the welding device 7 is perpendicular to the moving direction of the first base 15; the second base 16 is movably set on the second track 1004, and the feeler 8 is movably set on the second base 16, and the moving direction of the feeler 8 is perpendicular to the moving direction of the second base 16.

[0062] In this embodiment, the first track 1003 and the second track 1004 are parallel to the weld bead 1, ensuring the movement of the welding device 7 and the feeler 8 in the direction of the weld bead 1. The welding device 7 is movably arranged on the first base 15, and its moving direction is perpendicular to the moving direction of the first base 15. This means that the welding device 7 can be fine-tuned in a direction perpendicular to the weld bead 1 to ensure that the welding end is always aligned with the weld bead 1, and the feeler 8 is movably arranged on the second base 16, and its moving direction is perpendicular to the moving direction of the second base 16. This means that the feeler 8 can be fine-tuned in a direction perpendicular to the weld bead 1 to ensure that the feeler head 801 always keeps in contact with the weld bead 1.

[0063] Furthermore, the base 10 has a storage space 1005, which is located on both sides of the mounting frame 11, and the storage space 1005 is larger than the volume of the welding device 7 and the probe 8, so that the welding device 7 and the probe 8 move into the storage space 1005 and away from the mounting frame 11.

[0064] In this embodiment, the storage space 1005 is used to store the welding device 7 or the feeler 8. Before the welding device 7 and the feeler 8 are operated, they can be moved out of the storage space 1005 to prepare for welding and grinding operations. After completing the welding and grinding operations, the welding device 7 and the feeler 8 can be moved back to the storage space 1005, away from the mounting frame 11, to prepare for the next operation cycle. The storage space 1005 provides the necessary space for the rotation of the mounting frame 11. When the mounting frame 11 rotates, the first beam body 5 and the second beam body 6 enter the welding position 1002 and the processing position 1001 respectively, and the welding device 7 and the feeler 8 need to be away from the mounting frame 11 to avoid interference. The design of the storage space 1005 ensures the smooth progress of this process. The design of the storage space 1005 ensures the safety of the welding device 7 and the feeler 8 in the non-operating state, avoiding the occurrence of accidents.

[0065] Furthermore, it also includes: a linear pusher 17, which has multiple linear pushers 17, all of which are arranged on the base 10 and distributed on both sides of the processing position 1001 and the welding position 1002, and are used to push and fix the two sides of the beam; a pressing member 18, which has at least two pressing members 18, all of which are arranged on the base 10, and are located on both sides of the welding position 1002. The pressing members 18 are movable or swinging, and after moving or swinging, they are abutted and pressed against the end surface where the weld bead 1 is located. The two sides of the weld bead 1 are beams 101, and the pressing member 18 has pressing members 1801, and the number of pressing members 1801 is the same as the number of beams 101. After the pressing member 18 moves or swings, the multiple pressing members 1801 respectively press the multiple beams 101, and there is a gap between adjacent pressing members 1801, and the size of the gap is larger than the size of the welding head 701. The adjusting member 19 is movably disposed on the pressing portion 1801 . After the adjusting member 19 moves, one end of the adjusting member 19 extends out of or cancels extending out of the pressing portion 1801 , so as to replace the pressing portion 1801 and abut against the beam portion 101 .

[0066] In this embodiment, the linear pusher 17 is used to push and fix the two sides of the beam to ensure that the beam remains stable during welding and grinding to prevent movement or offset. There is a gap between adjacent pressing parts 1801, and the size of the gap is larger than the size of the welding head 701, ensuring that the welding head 701 has enough space to operate during the welding process to avoid interference with the pressing part 1801. The design of the adjustment member 19 allows the clamping point to be adjusted according to actual needs. When the surface of the beam is uneven, that is, the pressing parts 1801 on both sides can press the beam part 101, but the pressing part 1801 in the middle cannot press it. At this time, the adjusting member 19 in the middle can be adjusted to replace the pressing part 1801 in the middle to abut against the beam part 101 in the middle, so as to achieve stable fixation of the beam and improve welding quality. Preferably, the adjustment member 19 can be a stud. The fast pushing and clamping design of the linear pusher 17 and the pressing member 18 makes the fixing process of the beam simple and fast, reduces the preparation time, and improves welding efficiency. Through the design of the adjusting member 19, the pressing point can be flexibly adjusted to adapt to beams of different sizes and shapes, thereby improving the versatility and adaptability of the equipment.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A welding device for processing an automobile cross beam, used for welding a weld bead (1) of the cross beam, wherein the weld bead (1) has a curved section (2) and a straight section (3) that are interconnected, wherein the curved section (2) and the straight section (3) both have a welding position (1002), wherein the welding positions (1002) of the curved section (2) and the straight section (3) are both located on the same side of the weld bead (1), and the cross beam is divided into a first beam body (5) and a second beam body (6), wherein the curved section (2) and the straight section (3) of the first beam body (5) and the second beam body (6) are distributed at the same position; characterized in that: include: A welding device (7), the welding device (7) being movably arranged and comprising a welding head (701) and a moving part (702), wherein the movement of the welding device (7) enables the welding head (701) to always face the welding position (1002) of the first beam body (5); A feeler piece (8), the feeler piece (8) is movably arranged, the feeler piece (8) has a feeler probe (801), the width of the feeler probe (801) is smaller than the width of the weld bead (1), so that the feeler piece (8) can extend into the weld bead (1) of the second beam body (6), and the feeler probe (801) abuts against the side of the weld bead (1); A connecting member (9), one end of the connecting member (9) being arranged on the moving portion (702), and the other end of the connecting member (9) being arranged on the feeler member (8), so that after the feeler member (8) moves, the welding device (7) moves accordingly; The probe head (801) has a grinding portion, the grinding portion is used to abut against the side and / or outer surface of the weld bead (1), and further comprises: A base (10), the base (10) having a processing position (1001), the processing position (1001) being used to place the second beam body (6), the end surface of the second beam body (6) where the weld bead (1) is located being perpendicular to the ground or facing the ground.

2. A welding device for processing automobile cross beams according to claim 1, characterized in that: The base platform (10) further comprises a welding position (1002), wherein the welding position (1002) is used to place the first beam body (5), and the moving direction of the welding device (7) is parallel to the moving direction of the feeler (8); and further comprises: A mounting frame (11), the mounting frame (11) is rotatably disposed on the base (10) with a rotation axis parallel to the ground, the mounting frame (11) having two mounting portions (1101), the mounting portions (1101) being used to support the crossbeam, and after the mounting frame (11) rotates, the two mounting portions (1101) are respectively located at the processing position (1001) and the welding position (1002), and the processing position (1001) and the welding position (1002) are arranged at intervals along the height direction; A rod shaft (12) is arranged on the base (10), and the middle part of the connecting member (9) is rotatably arranged on the rod shaft (12), so that the moving directions of the welding device (7) and the feeler member (8) are opposite.

3. The welding device for processing an automobile cross beam according to claim 2, characterized in that: The connecting member (9) has connecting holes (901) at both ends, and the connecting holes (901) are in the shape of long strips. The welding device (7) has a first connecting column (703), and the feeler (8) has a second connecting column (802). The first connecting column (703) and the second connecting column (802) are movably arranged in the connecting hole (901), and the diameters of the first connecting column (703) and the second connecting column (802) are the same as the width of the connecting hole (901).

4. The welding device for processing an automobile cross beam according to claim 3, characterized in that: Also includes: A plate (13), wherein the plate (13) is arranged to move on the base (10) and is located on a moving path of the feeler (8), and the plate (13) moves closer to or farther from the feeler (8); An elastic member (14), one end of which is arranged on the sensing member (8) and the other end of which is arranged on the plate (13), and is used to provide elastic force for the sensing member (8) to approach or move away from the plate (13).

5. The welding device for processing an automobile cross beam according to claim 1, characterized in that: The base (10) comprises a first track (1003) and a second track (1004), wherein the first track (1003) and the second track (1004) are both parallel to the weld bead (1); and further comprises: A first base (15), the first base (15) is movably arranged on the first track (1003), the welding device (7) is movably arranged on the first base (15), and the moving direction of the welding device (7) is perpendicular to the moving direction of the first base (15); A second base (16), wherein the second base (16) is movably arranged on the second track (1004), the feeler (8) is movably arranged on the second base (16), and the moving direction of the feeler (8) is perpendicular to the moving direction of the second base (16).

6. The welding device for processing automobile cross beams according to claim 2, characterized in that: The base (10) has a storage space (1005), and the storage space (1005) is located on both sides of the mounting frame (11). The storage space (1005) is larger than the volume of the welding device (7) and the feeler (8), so that the welding device (7) and the feeler (8) can enter the storage space (1005) after moving, and stay away from the mounting frame (11).

7. The welding device for processing an automobile cross beam according to claim 1, characterized in that: Also includes: A plurality of linear pushing members (17), each of which is arranged on the base (10) and distributed on both sides of the processing position (1001) and the welding position (1002), and is used to push and fix both sides of the crossbeam; There are at least two pressing pieces (18), both of which are arranged on the base (10) and located on both sides of the welding position (1002). The pressing pieces (18) are arranged to move or swing, and after moving or swinging, they are abutted and pressed against the end surface of the weld bead (1).

8. The welding device for processing an automobile cross beam according to claim 7, characterized in that: The two sides of the weld (1) are beams (101), the pressing piece (18) has pressing parts (1801), the number of the pressing parts (1801) is the same as the number of the beams (101), and after the pressing piece (18) moves or swings, the plurality of pressing parts (1801) respectively press the plurality of beams (101), and there is a gap between adjacent pressing parts (1801), and the size of the gap is larger than the size of the welding head (701).

9. The welding device for processing an automobile cross beam according to claim 8, characterized in that: Also includes: An adjusting member (19), wherein the adjusting member (19) is movably arranged on the pressing portion (1801); after the adjusting member (19) moves, one end of the adjusting member (19) extends out of or stops extending out of the pressing portion (1801), and is used to replace the pressing portion (1801) to abut against the beam portion (101).

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