Welding station

Abstract

The present invention discloses a welding station, comprising a gantry, a welding fixture, and a pressure plate gripper device; the gantry comprises a pedestal unit and a crossbeam located above the pedestal unit; the welding fixture comprises a base, a magnetic unit, a heating unit, and a dead-point internal support mechanism; the base is disposed on the pedestal unit, the magnetic unit, the heating unit, and the dead-point internal support mechanism are disposed on the base, the heating unit is used to heat the workpiece to be welded, and the dead-point internal support mechanism is used to automatically abut against the inner side wall of the frame of the workpiece to be welded; the pressure plate gripper device comprises a gripper mechanism and a pressure plate, the gripper mechanism being disposed on the crossbeam, the gripper mechanism being used to place the pressure plate on the workpiece to be welded and remove the pressure plate from the workpiece to be welded, and the magnetic unit being used to firmly attract the pressure plate placed on the workpiece to be welded to compress the weld bead surrounding the workpiece to be welded. The present invention can effectively improve welding quality, welding production cycle, and efficiency, and enhance the degree of automation.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, in particular to a welding station. Background Art

[0002] At present, the battery trays of new energy vehicles mostly use FSW welding technology. With the rapid expansion of the new energy vehicle market, the demand for new energy battery tray products has increased accordingly, and the welding quality and welding production efficiency requirements of battery trays are becoming higher and higher.

[0003] The existing FSW intelligent welding station cannot press the battery pallet well, cannot control the flatness and verticality of the battery pallet during the welding process, and cannot press the weld well, resulting in the welding quality of the battery pallet after welding not being effectively improved. That is, the existing FSW intelligent welding station cannot meet the high-quality welding requirements of the battery pallet, for example, it cannot meet the quality requirements of the battery pallet circumference welding, and the degree of automation needs to be further improved. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a welding station that can effectively improve welding quality, welding production cycle and efficiency, and has a high degree of automation.

[0005] A welding station according to an embodiment of the present invention includes:

[0006] a gantry comprising a pedestal unit and a crossbeam located above the pedestal unit;

[0007] A welding tool, comprising a base, a magnetic unit, a heating unit, and a dead point internal support mechanism; the base is arranged on the pedestal unit, the magnetic unit, the heating unit, and the dead point internal support mechanism are arranged on the base, the heating unit is used to heat the workpiece to be welded, and the dead point internal support mechanism is used to automatically abut against the inner side wall of the frame of the workpiece to be welded;

[0008] A pressure plate gripping device, the pressure plate gripping device includes a gripping mechanism and a pressure plate, the gripping mechanism is arranged on the crossbeam, the gripping mechanism is used to place the pressure plate on the workpiece to be welded and remove the pressure plate from the workpiece to be welded, and the magnetic unit is used to suck the pressure plate placed on the workpiece to be welded to press the weld bead side of the workpiece to be welded.

[0009] According to the welding station of the embodiment of the present invention, the workpiece to be welded is clamped by the welding fixture and the pressure plate. The welding fixture and the gantry cooperate with each other and exchange signals to weld the workpiece to be welded, thereby realizing fully automated welding and improving welding efficiency and automation level. The welding fixture presses the workpiece to be welded and the weld bead, and effectively controls the flatness and verticality of the workpiece to be welded, thereby ensuring the welding quality of the product. The use of the pressure plate gripper device improves the automation level and realizes an improvement in the beat of the entire automated production line of the workpiece to be welded.

[0010] In some embodiments, the dead point internal support mechanism includes an internal support mounting portion, a driving unit, a hinge unit, a sliding unit, and a limiting unit;

[0011] Wherein, the inner support mounting portion is fixed on the base;

[0012] The driving unit is arranged on the inner support mounting portion;

[0013] The hinge unit is pivotally connected to the inner support mounting portion, the driving unit and the sliding unit respectively;

[0014] The sliding unit can be linearly slidably arranged on the inner support mounting portion;

[0015] The limiting unit is provided on the inner support mounting portion and is used to adjust the limiting position of the hinge unit and limit the hinge unit;

[0016] The driving unit drives the sliding unit to perform linear motion by driving the hinge unit. When the hinge unit abuts against the limiting unit at the limiting position and is locked, the sliding unit adaptively abuts against the inner side wall of the frame of the workpiece to be welded.

[0017] In some embodiments, the hinge unit includes a first rotating block and a second rotating block; the first rotating block is pivotally connected to the inner support mounting portion, the driving unit and the second rotating block respectively, and the second rotating block is pivotally connected to the sliding unit; the limit position is defined as: the pivot axis position between the first rotating block and the inner support mounting portion, the pivot axis position between the first rotating block and the second rotating block, and the pivot axis position between the second rotating block and the sliding unit are all on the same horizontal straight line.

[0018] In some embodiments, the pivotal connection between the first rotating block and the driving unit is located above the pivotal connection between the first rotating block and the second rotating block, and the limiting unit is arranged below the first rotating block and close to the pivotal connection between the first rotating block and the second rotating block, and the limiting unit can be raised and lowered.

[0019] In some embodiments, the limiting unit is a stud, and the lower end of the stud is threadedly connected to the inner support mounting portion.

[0020] In some embodiments, the sliding unit includes a slider and a top block assembly, the slider is linearly slidably engaged with the inner support mounting portion, the top block assembly is fixed on the slider, and the top block assembly is used to adaptively abut against the inner side wall of the frame of the workpiece to be welded.

[0021] In some embodiments, the top block assembly includes a first top block and a second top block; the first top block and the second top block are located on the same side of the slider, and the first top block and the second top block are spaced apart from each other.

[0022] In some embodiments, the dead point internal support mechanism is distributed along the four sides of the base.

[0023] In some embodiments, the heating unit includes a support plate, a heat insulation plate and a heating plate, the support plate is mounted on the base, and the support plate, the heat insulation plate and the heating plate are stacked in sequence.

[0024] In some embodiments, the heating plate includes an electric heating element and a rubber plate, and the electric heating element is distributed in the rubber plate.

[0025] In some embodiments, the heating unit further includes a heat conducting plate, and the heat conducting plate covers the heating plate.

[0026] In some embodiments, the pressure plate includes a pressure plate body, a hanging block and a pressure plate positioning assembly; the hanging block and the pressure plate positioning assembly are arranged on the pressure plate body; the gripping mechanism includes a mounting bracket, a hanging plate driving member, a hanging plate, a gripping assembly and a hanging plate positioning assembly; the hanging plate driving member is arranged on the mounting bracket and connected to the hanging plate to drive the hanging plate to move up and down; the gripping assembly is arranged on the hanging plate for connecting to and separating from the hanging block; the hanging plate positioning assembly is arranged on the hanging plate for cooperating with the pressure plate positioning assembly to accurately position the pressure plate.

[0027] In some embodiments, the pressure plate positioning assembly includes a first positioning bushing, the hanger plate positioning assembly includes a first positioning column extending vertically, and the first positioning column is used to cooperate with the first positioning bushing; or the pressure plate positioning assembly includes a second positioning column extending vertically, the hanger plate positioning assembly includes a second positioning bushing, and the second positioning column is used to cooperate with the second positioning bushing.

[0028] In some embodiments, the pressure plate positioning assembly further includes a first limiting column, and the hanger plate positioning assembly further includes a second limiting column, and the second limiting column and the first limiting column are directly opposite to each other.

[0029] In some embodiments, the gripper mechanism further comprises a vertically extending linear guide assembly for slidingly guiding the hanger plate, wherein the linear guide assembly comprises a guide rail and a slider. In some embodiments, the gripper mechanism further comprises a buffer, wherein the buffer is distributed on the hanger plate and the mounting bracket.

[0030] In some embodiments, the pressure plate also includes a floating pressing mechanism, which is distributed around the periphery of the pressure plate body; the floating pressing mechanism includes a mounting block, a guide sleeve, a guide column, a pressure head and an elastic member; the mounting block is fixed on the upper side of the pressure plate body, the guide sleeve is fixed in the mounting block, the guide column can slide up and down through the guide sleeve, the mounting block and the pressure plate body, the upper end of the guide column has a blocking portion, the lower end of the guide column is fixed to the pressure head located on the lower side of the pressure plate, and the elastic member is arranged between the mounting block and the pressure head.

[0031] In some embodiments, the floating pressing mechanism further includes a floating adjusting member, and the floating adjusting member is used to adjust the floating height of the pressing head.

[0032] In some embodiments, the pressure plate further includes locking pressure blocks, and the locking pressure blocks are distributed at the four corners of the lower side of the pressure plate body.

[0033] The hanging block is provided with a horizontally extending pin hole; the grabbing assembly includes a pin driving member and a horizontally extending pin connected to each other, and the pin driving member is fixed to the hanging plate to drive the pin to move horizontally, so that the pin is inserted into and exits the pin hole.

[0034] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0036] Figure 1 is a schematic diagram of a welding station of the present invention;

[0037] Figure 2 Schematic diagram of the welding spindle unit and the pressure wheel in the present invention;

[0038] Figure 3 Schematic diagram of the welding tool in the present invention;

[0039] Figure 4 It is a side view schematic diagram of the dead point internal support mechanism of the welding tool in the present invention;

[0040] Figure 5 Schematic top view of the dead point internal support mechanism of the welding tool in the present invention;

[0041] Figure 6 It is a cross-sectional schematic diagram of the dead point internal support mechanism of the welding tool in the present invention;

[0042] Figure 7 It is a three-dimensional schematic diagram of the heating unit of the welding tool in the present invention;

[0043] Figure 8 Schematic top view of the heating unit of the welding tool in the present invention;

[0044] Figure 9 for Figure 8 A magnified schematic diagram of AA;

[0045] Figure 10 It is a three-dimensional schematic diagram of the gripping device of the pressure plate of the present invention;

[0046] Figure 11 A side view of the gripping device of the pressure plate of the present invention;

[0047] Figure 12 A top view of the gripping device of the pressure plate of the present invention;

[0048] Figure 13 A cross-sectional schematic diagram of a gripping assembly of a pressure plate gripping device of the present invention;

[0049] Figure 14 for Figure 10 The enlarged schematic diagram of point B in the middle;

[0050] Figure 15 A cross-sectional schematic diagram of the floating pressing mechanism of the pressure plate gripping device of the present invention;

[0051] Figure 16 This is a schematic diagram of the welding fixture and the pressure plate clamping the workpiece to be welded in the present invention.

[0052] Reference numerals:

[0053] 1000 welding stations;

[0054] Gantry 100; pedestal unit 11; crossbeam 12; column 13; moving block 14; welding spindle unit 15; pressure wheel 16;

[0055] Welding fixture 200; base 21; dead point internal support mechanism 22; internal support mounting portion 221; drive unit 222; hinge unit 223; first rotating block 2231; second rotating block 2232; sliding unit 224; slider 2241; top block assembly 2242; first top block 22421; second top block 22422; limiting unit 225; heating unit 23; support plate 231; heat insulation plate 232; heating plate 233; heat conducting plate 234; magnetic unit 24; pressing mechanism 25; dresser 26; positioning unit 27;

[0056] The pressure plate gripper device 300; the pressure plate 31; the pressure plate body 310; the hanging block 311; the pressure plate positioning assembly 312; the first positioning bushing 3121; the first limiting column 3122; the floating clamping mechanism 313; the floating mounting block 3131; the guide sleeve 3132; the guide column 3133; the pressure head 3134; the elastic member 3135; the floating adjustment member 3136; the pressing piece 3137; the locking pressure block 314; the reinforcement part 315; the gripper mechanism 32; the mounting bracket 320; the hanging plate driving member 321; the hanging plate 322; the gripping assembly 323; the latch driving member 3231; the latch 3232; the driving member mounting block 3233; the hanging plate positioning assembly 324; the first positioning column 3241; the second limiting column 3242; the linear guide rail assembly 325; the guide rail 3251; the slider 3252; the buffer 326. DETAILED DESCRIPTION

[0057] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0058] The following combination Figures 1 to 16 The welding station 1000 according to an embodiment of the present invention will be described.

[0059] like Figure 1 As shown, the welding station 1000 according to an embodiment of the present invention is suitable for welding battery trays and waiting for welding workpieces, and includes a gantry 100 , a welding tool 200 and a pressure plate gripper device 300 .

[0060] Among them, such as Figure 1 and Figure 2As shown, it includes a pedestal unit 11 and a crossbeam 12 located above the pedestal unit 11. The pedestal unit 11 is mainly used to install the welding tool 200 and control the precise longitudinal movement of the welding tool 200. The crossbeam 12 can be supported and fixed by a column 13 located between the pedestal unit 11 and the crossbeam 12. The crossbeam 12 is used to install the pressure plate gripping device 300. For example, the pressure plate gripping device 300 is suspended directly below the crossbeam 12. In addition, the gantry 100 also includes a moving block 14 and a welding spindle unit 15. The moving block 14 can be laterally moved on a side surface of the crossbeam 12, and the welding spindle unit 15 can be moved up and down (i.e., vertically) on the moving block 14. The welding spindle unit 15 is equipped with a pressure wheel 16. The pressure wheel 16 can press the weld bead on the workpiece to be welded in front of the welding spindle unit 15 when the welding spindle unit 15 welds the workpiece to be welded. The welding spindle unit 15 has a certain distance in the longitudinal direction relative to the pressure plate gripper device 300, and the two do not interfere with each other when working. The gantry 100 has sufficient rigidity and a reliable structure, which improves the degree of automation, is conducive to improving the production rhythm and efficiency of the entire automated production line of the workpiece to be welded, and has a price advantage.

[0061] like Figure 1 、 Figures 3 to 9 and Figure 16 As shown, the welding jig 200 includes a base 21, a magnetic unit 24, a heating unit 23 and a dead point internal support mechanism 22. The base 21 is arranged on the pedestal unit 11, that is, the welding jig 200 is arranged on the pedestal unit 11 as a whole through the base 21, and the overall longitudinal movement of the welding jig 200 is controlled by the pedestal unit 11. A conventional positioning unit 27 is provided on the base 21. The positioning unit 27 is used to accurately position the workpiece to be welded, which is beneficial to improving the welding quality. For example, the positioning units are distributed on the adjacent two side edges of the base 21. When the workpiece to be welded is placed on the welding jig 200, the workpiece to be welded can be pushed by the side push drive units on the other two sides of the base 21, so that the adjacent two side parts of the workpiece to be welded abut against the corresponding positioning units 27, thereby realizing automatic positioning of the workpiece to be welded; a conventional clamping mechanism 25 that can be automatically loosened and tightened is provided around the base 21. The clamping mechanism 25 is used to clamp the workpiece to be welded and the pressure plate 31 (reference Figure 16), such as the periphery of the workpiece to be welded, wherein the four-corner clamping mechanisms 25 located at the base 21 press the four corners of the frame of the workpiece to be welded to control the overall flatness of the frame of the workpiece to be welded; the magnetic unit 24, the heating unit 23 and the dead point internal support mechanism 22 are arranged on the base 21; the magnetic unit 24 is mainly used to cooperate with the pressure plate 31, suck the pressure plate 31, so that the pressure plate 31 presses the workpiece to be welded, ensuring that the weld bead of the workpiece to be welded is pressed around, which is beneficial to improving the welding quality; the heating unit 23 is used to heat the workpiece to be welded, which can effectively control the flatness of the workpiece to be welded during the welding process, which is beneficial to improving the welding quality; the dead point internal support mechanism 22 is used to automatically abut against the inner side wall of the frame of the workpiece to be welded, which can effectively prevent the workpiece to be welded from shrinking during the welding process, and then effectively control the verticality of the workpiece to be welded, which is beneficial to improving the welding quality. Therefore, the welding tool 200 can position the workpiece to be welded, can press the workpiece to be welded and the sides of the weld such as the circumferential weld, can control the flatness and verticality of the product, and thus can effectively improve the welding quality of the workpiece to be welded, and the welding tool 200 has a high degree of automation.

[0062] like Figures 10 to 16 As shown, the pressure plate gripping device 300 includes a gripping mechanism 32 and a pressure plate 31; the gripping mechanism 32 is arranged on the crossbeam 12, and the gripping mechanism 32 is used to place the pressure plate 31 on the workpiece to be welded and remove the pressure plate 31 from the workpiece to be welded, thereby improving the degree of automation and facilitating the improvement of the production rhythm and efficiency of the entire automated production line of the workpiece to be welded; the magnetic unit 24 is used to suck the pressure plate 31 placed on the workpiece to be welded to press the weld bead side of the workpiece to be welded, thereby improving the welding quality.

[0063] The following is a welding process of the welding station 1000 according to an embodiment of the present invention. During welding, the clamping mechanism 25 of the welding fixture 200 is opened, and the workpiece to be welded, such as a battery tray, is placed on the welding fixture 200 and positioned by the positioning unit 27; after the clamping mechanism 25 clamps the workpiece to be welded, it abuts against the inner wall of the frame of the workpiece to be welded through the dead point inner support mechanism 22; then, the workpiece to be welded is moved to the bottom of the pressure plate gripper device 300 along with the welding fixture 200, and the gripper mechanism 32 places the pressure plate 31 on the workpiece to be welded and then leaves the pressure plate 31. The pressure plate 31 is sucked by the magnetic unit 24 and pressed against the workpiece to be welded, and the workpiece to be welded is heated by the heating unit 23; the welding station 1000 uses the welding spindle unit 15 to weld the workpiece to be welded. After welding is completed, the pressure plate 31 is removed, and then the workpiece to be welded is taken away.

[0064] According to the welding station 1000 of the embodiment of the present invention, the workpiece to be welded is clamped by the welding fixture 200 and the pressure plate 31. The welding fixture 200 and the gantry 100 cooperate with each other and exchange signals to weld the workpiece to be welded, thereby realizing fully automated welding and improving welding efficiency and automation level. The welding fixture 200 presses the workpiece to be welded and the surrounding side of the weld bead, and effectively controls the flatness and verticality of the workpiece to be welded, thereby ensuring the welding quality of the product. The use of the pressure plate gripper device 300 improves the automation level and realizes an improvement in the beat of the entire automated production line of the workpiece to be welded.

[0065] In some embodiments, the dead point internal support mechanism 22 includes an internal support mounting portion 221 , a driving unit 222 , a hinge unit 223 , a sliding unit 224 and a limiting unit 225 .

[0066] The inner support mounting portion 221 is fixed on the base 21 , and is mainly used to mount functional components such as a driving unit 222 , a hinge unit 223 , a sliding unit 224 and a limiting unit 225 .

[0067] The driving unit 222 is provided on the inner support mounting portion 221 and mainly provides power for the dead point inner support mechanism 22. The driving unit 222 can be a cylinder but is not limited to a cylinder.

[0068] The hinge unit 223 is pivotally connected to the inner support mounting portion 221, the driving unit 222 and the sliding unit 224 respectively, and the sliding unit 224 can be linearly slidably arranged on the inner support mounting portion 221, so that the driving unit 222 drives the hinge unit 223 to rotate, and the rotating hinge unit 223 drives the sliding unit 224 to perform linear motion along the inner support mounting portion 221 between the first position and the second position; when the sliding unit 224 is in the first position, the sliding unit 224 is away from the inner side wall of the frame of the workpiece to be welded and does not abut against the workpiece to be welded; when the sliding unit 224 is in the second position, the sliding unit 224 abuts against the inner side wall of the frame of the workpiece to be welded, realizing the dead point internal support function of the dead point internal support mechanism 22, preventing the workpiece to be welded from shrinking inward during the welding process, thereby effectively controlling the verticality of the workpiece to be welded, which is beneficial to improving the welding quality of the workpiece to be welded.

[0069] The limiting unit 225 is provided on the inner support mounting portion 221 and is used to adjust the limiting position of the hinge unit 223 and to limit the hinge unit 223. It is understood that the main function of the limiting unit 225 is to limit the hinge unit 223. Only when the hinge unit 223 is in a precise limiting position can the sliding unit 224 be precisely in the second position and abut against the inner side wall of the frame of the workpiece to be welded, thereby realizing the dead point internal support function of the dead point internal support mechanism 22, preventing the workpiece to be welded from shrinking inward during the welding process, thereby effectively controlling the verticality of the workpiece to be welded and ensuring the welding quality of the workpiece to be welded. Because the limiting unit 225 can adjust the limiting position of the hinge unit 223, the hinge unit 223 is in a precise limiting position, and the dead point internal support mechanism 22 can effectively control the verticality of the workpiece to be welded, effectively improving the welding quality of the workpiece to be welded.

[0070] The driving unit 222 drives the sliding unit 224 to perform linear motion by driving the hinge unit 223. When the hinge unit 223 abuts against the limiting unit 225 at the limiting position and is locked, the sliding unit 224 adaptively abuts against the inner side wall of the frame of the workpiece to be welded.

[0071] When in use, in order to effectively prevent the workpiece to be welded from shrinking inward during the welding process, effectively control the verticality of the workpiece to be welded, and effectively improve the welding quality of the workpiece to be welded, the position of the limiting portion abutting against the hinge unit 223 is adjusted by the limiting unit 225, for example, Figure 2 and Figure 4 The limiting unit 225 can be raised and lowered by itself, that is, the limiting position of the hinge unit 223 can be adjusted so that the hinge unit 223 is in a precise limiting position, and then the hinge unit 223 is driven to the adjusted limiting position by the driving unit 222. At this time, the hinge unit 223 abuts against the limiting part of the limiting unit 225, so that the hinge unit 223 is locked with the cooperation of the driving unit 222 and the limiting unit 225. At this time, the sliding unit 224 is tightly against the inner side wall of the frame of the workpiece to be welded, thereby effectively controlling the verticality of the workpiece to be welded, and can effectively improve the welding quality of the workpiece to be welded.

[0072] In some embodiments, the hinge unit 223 includes a first rotating block 2231 and a second rotating block 2232; the first rotating block 2231 is pivotally connected to the inner support mounting portion 221, the driving unit 222 and the second rotating block 2232, respectively, and the second rotating block 2232 is pivotally connected to the sliding unit 224. When the driving unit 222 drives the first rotating block 2231 to rotate and swing around the pivot axis between the first rotating block 2231 and the inner support mounting portion 221, the pivot axis between the first rotating block 2231 and the second rotating block 2232 can be driven to swing up and down around the pivot axis between the first rotating block 2231 and the inner support mounting portion 221, thereby driving the sliding unit 224 to make a linear motion between the first position and the second position on the inner support mounting portion 221. The limit position is defined as: the pivot axis position between the first rotating block 2231 and the internal support mounting portion 221, the pivot axis position between the first rotating block 2231 and the second rotating block 2232, and the pivot axis position between the second rotating block 2232 and the sliding unit 224 are all on the same horizontal straight line to realize the dead point internal support function of the dead point internal support mechanism 22.

[0073] In some embodiments, the pivotal connection between the first rotating block 2231 and the driving unit 222 is located above the pivotal connection between the first rotating block 2231 and the second rotating block 2232. The limiting unit 225 is arranged below the first rotating block 2231 and near the pivotal connection between the first rotating block 2231 and the second rotating block 2232. The limiting unit 225 can be raised and lowered. By raising and lowering the limiting unit 225, the limiting position of the first rotating block 2231 can be adjusted so that the pivot axis between the first rotating block 2231 and the inner support mounting portion 221, the pivot axis between the first rotating block 2231 and the second rotating block 2232, and the pivot axis between the second rotating block 2232 and the sliding unit 224 are all aligned on the same horizontal line, making adjustment easy.

[0074] It should be noted that if the limiting unit 225 is replaced by other limiting parts that cannot be raised or lowered by themselves, due to the processing errors in the sizes of other limiting parts, the limiting position of the hinge unit 223 will be inaccurate, which will affect the sliding unit 224 and the inner side wall of the frame of the workpiece to be welded. It cannot effectively prevent the workpiece to be welded from shrinking inward during the welding process, and thus cannot effectively control the verticality of the workpiece to be welded, affecting the welding quality of the workpiece to be welded.

[0075] In some embodiments, the limiting unit 225 is a stud, the lower end of which is threadedly connected to the inner support mounting portion 221. By adjusting the height of the stud extending upward from the inner support mounting portion 221, the limiting position of the first rotating block 2231 can be adjusted, so that the pivot axis between the first rotating block 2231 and the inner support mounting portion 221, the pivot axis between the first rotating block 2231 and the second rotating block 2232, and the pivot axis between the second rotating block 2232 and the sliding unit 224 are all aligned on the same horizontal line, making adjustment very convenient.

[0076] In some embodiments, the sliding unit 224 includes a slider 2241 and a top block assembly 2242. The slider 2241 slides linearly with the inner support mounting portion 221. The top block assembly 2242 is fixed on the slider 2241. The top block assembly 2242 is used to adaptively abut against the inner side wall of the frame of the workpiece to be welded to prevent the workpiece to be welded from shrinking and deforming.

[0077] In some embodiments, the top block assembly 2242 includes a first top block 22421 and a second top block 22422; the first top block 22421 and the second top block 22422 are located on the same side of the slider 2241, and the first top block 22421 and the second top block 22422 are arranged at intervals up and down, which can increase the side push area of ​​the workpiece to be welded and prevent the workpiece to be welded from shrinking and deforming.

[0078] In some embodiments, the first top block 22421 has a first abutting surface, which is a vertical plane and is used to abut against the vertical surface of the inner wall of the frame of the workpiece to be welded; the second top block 22422 has a second abutting surface, which is a sloped surface and protrudes as a whole from the first abutting surface and is used to abut against the inclined surface of the inner wall of the frame of the workpiece to be welded, thereby increasing the side push area of ​​the workpiece to be welded and preventing the workpiece to be welded from shrinking and deforming inward.

[0079] In some embodiments, the dead point internal support mechanisms 22 are distributed along the four sides of the base 21, that is, the dead point internal support mechanisms 22 are symmetrically or asymmetrically distributed on two opposite sides of the base 21. Specifically, the same number of dead point internal support mechanisms 22 are provided on opposite sides of the long sides of the base 21, and among the opposite sides of the long sides of the base 21, the dead point internal support mechanisms 22 on one side are symmetrical or asymmetrical with respect to the dead point internal support mechanisms 22 on the other side; the same number of dead point internal support mechanisms 22 are provided on opposite sides of the short sides of the base 21, and among the opposite sides of the short sides of the base 21, the dead point internal support mechanisms 22 on one side are symmetrical or asymmetrical with respect to the dead point internal support mechanisms 22 on the other side. In this way, by providing the dead point internal support mechanisms 22 around the four sides of the base 21, the inner side wall of the frame of the workpiece to be welded can be squeezed outward in the circumferential direction, thereby preventing the workpiece to be welded from shrinking inward during the welding process and preventing the workpiece to be welded from shrinking and deforming.

[0080] In some embodiments, the heating unit 23 includes a support plate 231, a heat shield 232, and a heating plate 233. The support plate 231 is mounted on the base 21, thereby securing the heating unit 23 to the base 21. The support plate 231, the heat shield 232, and the heating plate 233 are stacked in sequence. The support plate 231 can be a metal plate, such as an iron plate, which can reliably support the heat shield 232. The heating plate 233 is used to generate heat, has a large heating area, and uniformly heats the workpiece to be welded, thereby preventing deformation of the workpiece to be welded and effectively controlling the flatness of the workpiece to be welded, thereby improving welding quality. The heat shield 232 can effectively prevent the heat generated by the heating plate 233 from being transferred downward, thereby transferring the heat upward to the workpiece to be welded as much as possible.

[0081] In some embodiments, the heat insulation board 232 is a mica board, which has good heat insulation effect.

[0082] In some embodiments, the heating plate 233 includes an electric heater (not shown) and a rubber sheet. The electric heater is a heating element, such as an electric heating wire, and is distributed within the rubber sheet. The rubber sheet protects and insulates the electric heater and ensures uniform heat distribution. Preferably, the rubber sheet can be a silicone sheet.

[0083] In some embodiments, the heating unit 23 further includes a heat conducting plate 234, which covers the heating plate 233 to protect the heating plate 233 and to evenly transfer heat to the workpiece to be welded. Preferably, the heat conducting plate 234 is a metal plate, such as an aluminum plate.

[0084] In some embodiments, the magnetic units 24 are distributed around the base 21 and are used to tightly absorb a pressure plate placed on the workpiece to be welded, which is beneficial to improving the welding quality of the workpiece to be welded.

[0085] In some embodiments, a clamping mechanism 25 is further included. The clamping mechanism 25 is distributed around the periphery of the base 21 and is used to clamp the workpiece to be welded and ensure the overall flatness of the frame of the workpiece to be welded.

[0086] In some embodiments, the welding tool 200 is equipped with a grinder 26, which is used to repair aluminum chips on the welding spindle unit 15 of the gantry 100, thereby realizing fully automatic welding of the product without manual participation.

[0087] In some embodiments, as Figures 10 to 16 As shown, the pressure plate 31 includes a pressure plate body 310, a hanging block 311 and a pressure plate positioning assembly 312; the hanging block 311 and the pressure plate positioning assembly 312 are arranged on the pressure plate body 310, for example, on the upper side of the pressure plate body 310, and the lower side of the pressure plate body 310 faces the workpiece to be welded.

[0088] The gripping mechanism 32 includes a mounting bracket 320, a hanger plate drive 321, a hanger plate 322, a gripping assembly 323 and a hanger plate positioning assembly 324; the mounting bracket 320 is suitable for being mounted on the beam 12 of the welding station 1000; the hanger plate drive 321 can be a cylinder but is not limited to a cylinder, the hanger plate drive 321 is arranged on the mounting bracket 320 and is connected to the hanger plate 322 to drive the hanger plate 322 to move up and down; the gripping assembly 323 is arranged on the hanger plate 322, for example, on the lower side of the hanger plate 322, for connecting and separating with the hanger block 311; the hanger plate positioning assembly 324 is arranged on the hanger plate 322, for example, on the lower side of the hanger plate 322, for cooperating with the pressure plate positioning assembly 312 to accurately position the pressure plate 31, even if the position of the pressure plate 31 relative to the gripping mechanism 32 is correct.

[0089] When working, the workpiece to be welded is located at the designated position below the pressure plate gripper device 300, and the gripper mechanism 32 cooperates with the pressure plate positioning component 312 of the pressure plate 31 through the hanging plate positioning component 324, so that the position of the pressure plate 31 relative to the gripper mechanism 32 is correct, such as keeping the pressure plate 31 in a horizontal position without tilting, so as to achieve accurate positioning of the pressure plate 31 relative to the gripper mechanism 32. At the same time, the gripper mechanism 32 is reliably connected to the hanging block 311 of the pressure plate 31 through the gripping component 323, and the hanging plate 322 and the pressure plate 31 are driven down by the hanging plate driving member 321, so that the pressure plate 31 can be accurately placed on the workpiece to be welded, thereby avoiding the pressure plate 31 from being tilted on the workpiece to be welded, thereby avoiding interference between the pressure plate 31 and the welding spindle, avoiding collision with the machine, and reducing safety hazards. At the same time, the gripper mechanism 32 accurately places the pressure plate 31 on the workpiece to be welded, which is also conducive to improving the welding quality of the workpiece to be welded. After the pressure plate 31 is placed on the workpiece to be welded, the grabbing assembly 323 separates from the hanging block 311, and the hanging plate driving member 321 drives the hanging plate 322 to rise, so that the hanging plate positioning assembly 324 separates from the pressure plate positioning assembly 312, that is, the gripping mechanism 32 is separated from the pressure plate 31, so that the welding spindle can weld the workpiece to be welded. When the workpiece to be welded needs to be welded and the pressure plate 31 needs to be removed, the hanging plate driving member 321 drives the hanging plate 322 to descend. After the hanging plate positioning assembly 324 cooperates with the pressure plate positioning assembly 312 and is connected to the hanging block 311 through the grabbing assembly 323, the hanging plate driving member 321 drives the hanging plate 322 and the pressure plate 31 to rise, waiting for the next time to place the pressure plate 31 on the next workpiece to be welded.

[0090] The pressure plate gripper device 300, on the one hand, realizes the automatic gripping and releasing of the pressure plate 31 by the gripper mechanism 32 by setting the hanging plate driving part 321, the gripping component 323 and the hanging block 311, thereby improving the degree of automation, reducing manpower and improving the production rhythm. On the other hand, through the hanging plate positioning component 324 and the pressure plate positioning component 312, high-precision positioning of the pressure plate 31 is achieved, ensuring that the pressure plate 31 is accurately placed on the workpiece to be welded, avoiding the pressure plate 31 from being tilted on the workpiece to be welded, and thus avoiding interference between the pressure plate 31 and the welding spindle, avoiding collision with the machine, reducing safety hazards, and also helping to improve the welding quality of the workpiece to be welded.

[0091] In some embodiments, the pressure plate positioning assembly 312 includes a first positioning bushing 3121, and the hanger plate positioning assembly 324 includes a vertically extending first positioning column 3241, which is used to cooperate with the first positioning bushing 3121 to achieve high-precision positioning of the pressure plate 31; the first positioning column 3241 and the first positioning bushing 3121 can be arranged in multiple groups to better achieve high-precision positioning of the pressure plate 31. Alternatively, the pressure plate positioning assembly 312 includes a vertically extending second positioning column (not shown in the figure), and the hanger plate positioning assembly 324 includes a second positioning bushing (not shown in the figure), which is used to cooperate with the second positioning bushing to achieve high-precision positioning of the pressure plate 31; the second positioning bushing and the second positioning column can be arranged in multiple groups to better achieve high-precision positioning of the pressure plate 31.

[0092] In some embodiments, the pressure plate positioning assembly 312 further includes a first limiting post 3122, and the hanger plate positioning assembly 324 further includes a second limiting post 3242, and the second limiting post 3242 is directly opposite to the first limiting post 3122. By providing the first limiting post 3122 and the second limiting post 3242, on the one hand, the positioning accuracy of the pressure plate 31 can be further improved, and on the other hand, the lowest position of the hanger plate 322 is limited, ensuring that there is a reasonable space between the hanger plate 322 and the pressure plate 31 when the hanger plate 322 is lowered to the lowest position, thereby preventing the components on the lower side of the hanger plate 322, such as the grabbing assembly 323 and the first positioning bushing 3121, and the components on the upper side of the pressure plate body 310, such as the hanging block 311 and the first positioning post 3241, from being crushed. On the other hand, when the gripping mechanism 32 needs to remove the pressure plate 31, it is convenient for the grabbing assembly 323 to be connected to the hanging block 311. Preferably, the first limiting posts 3122 and the second limiting posts 3242 may be provided in multiple groups.

[0093] In some embodiments, the gripping mechanism 32 further includes a vertically extending linear guide assembly 325 for slidingly guiding the hanging plate 322. The linear guide assembly 325 includes a guide rail 3251 and a slider 3252. The guide rail 3251 is fixed to the mounting bracket 320, and the slider 3252 is fixed to the hanging plate 322. The slider 3252 slides with the guide rail 3251. By providing the linear guide assembly 325, on the one hand, the guiding accuracy is high, which is conducive to the hanging plate 322 and the components on the hanging plate 322 to be able to rise and fall smoothly without shaking. At the same time, the positioning accuracy of the pressure plate 31 can be further improved. On the other hand, the linear guide assembly 325 has a good load-bearing capacity, which allows the gripping mechanism 32 to lift a larger pressure plate 31 and has good applicability. Preferably, multiple groups of linear guide assemblies 325 can be provided.

[0094] In some embodiments, the gripping mechanism 32 also includes a buffer 326, which is distributed on the hanging plate 322 and the mounting bracket 320. When the gripping mechanism 32 grabs the pressure plate 31 and moves upward, the buffer 326 can effectively avoid noise, reduce the movement speed, and extend the service life of the gripping mechanism 32.

[0095] In some embodiments, a horizontally extending pin hole is provided on the hanging block 311; the grabbing assembly 323 includes a pin driving member 3231 and a horizontally extending pin 3232 connected to each other, the pin driving member 3231 can be a cylinder but is not limited to a cylinder, the pin driving member 3231 is fixed on the hanging plate 322 and connected to the pin 3232 to drive the pin 3232 to move horizontally, so that the pin 3232 is inserted into and exits the pin hole.

[0096] In detail, the grabbing assembly 323 also includes a driver mounting block 3233 , which is fixed to the lower side of the hanging plate 322 , and the latch driver 3231 is fixed on the driver mounting block 3233 , which also serves as a guide for the latch 3232 .

[0097] Preferably, multiple groups of the hanging blocks 311 and the grabbing assemblies 323 can be provided so that the grabbing mechanism 32 can reliably grab the pressing plate 31 .

[0098] In some embodiments, the pressure plate 31 also includes a floating pressing mechanism 313, which is distributed around the pressure plate body 310; the floating pressing mechanism 313 includes a floating mounting block 3131, a guide sleeve 3132, a guide column 3133, a pressure head 3134 and an elastic member 3135; the floating mounting block 3131 is fixed on the upper side of the pressure plate body 310, the guide sleeve 3132 is fixed in the floating mounting block 3131, and the guide column 3133 can slide up and down through the guide sleeve 3132, the floating mounting block 3131, and the pressure plate body 310, and the upper end of the guide column 3133 has a blocking portion, which can prevent the guide column 3133 from falling off, and the lower end of the guide column 3133 is fixed to the pressure head 3134 located on the lower side of the pressure plate 31, and the pressure head 3134 is used to directly press on the workpiece to be welded, and the elastic member 3135 is arranged between the floating mounting block 3131 and the pressure head 3134. By providing a floating clamping mechanism 313 around the periphery of the clamping plate body 310 and directly pressing the pressure head 3134 of the floating clamping mechanism 313 against the workpiece to be welded, the clamping plate 31 is adapted to the flatness tolerance of the workpiece to be welded. This facilitates the clamping plate 31 to better clamp the workpiece to be welded, thereby improving welding quality. The floating clamping mechanism 313 has a simple structure and is easy to install.

[0099] In some embodiments, the floating pressing mechanism 313 further includes a floating adjustment member 3136 , which is used to adjust the floating height of the pressing head 3134 .

[0100] In some embodiments, the floating adjustment member 3136 is a limiting bolt, which is threadedly connected to the floating mounting block 3131 and the lower end of the limiting bolt abuts against the pressure head 3134. The limiting stud can easily adjust the floating height of the pressure head 3134.

[0101] In some embodiments, the floating clamping mechanism 313 also includes a pressing plate 3137, which is fixed to the upper side of the floating mounting block 3131, for example, fixed to the floating mounting block 3131 by a screw. The pressing plate 3137 presses the upper end surface of the guide sleeve 3132 to prevent the guide sleeve 3132 from moving up and down.

[0102] In some embodiments, the lower surface of the pressing head 3134 is provided with an avoidance recess (not shown in the figure), which can effectively avoid interference between the pressing head 3134 and the workpiece to be welded.

[0103] In some embodiments, the pressing plate 31 further includes locking blocks 314 located at the four corners of the lower side of the pressing plate body 310. The locking blocks 314 can rigidly clamp the four corners of the workpiece to be welded and simultaneously limit the floating clamping mechanism 313.

[0104] In some embodiments, a reinforcement portion 315 is provided on the upper side of the pressure plate body 310 . The reinforcement portion 315 may be a reinforcing rib to prevent the pressure plate body 310 from deforming.

[0105] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" indicate that the specific features, structures, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0106] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A welding station, characterized in that: include: a gantry comprising a pedestal unit and a crossbeam located above the pedestal unit; A welding tool, comprising a base, a magnetic unit, a heating unit, and a dead point internal support mechanism; the base is arranged on the pedestal unit, the magnetic unit, the heating unit, and the dead point internal support mechanism are arranged on the base, the heating unit is used to heat the workpiece to be welded, and the dead point internal support mechanism is used to automatically abut against the inner side wall of the frame of the workpiece to be welded; A pressure plate gripping device, the pressure plate gripping device comprising a gripping mechanism and a pressure plate, the gripping mechanism being disposed on the crossbeam, the gripping mechanism being used to place the pressure plate on the workpiece to be welded and to remove the pressure plate from the workpiece to be welded, the magnetic unit being used to tightly attract the pressure plate placed on the workpiece to be welded to press the weld bead circumference of the workpiece to be welded; The dead point internal support mechanism includes an internal support installation portion, a driving unit, a hinge unit, a sliding unit and a limiting unit; Wherein, the inner support mounting portion is fixed on the base; The driving unit is arranged on the inner support mounting portion; The hinge unit is pivotally connected to the inner support mounting portion, the driving unit and the sliding unit respectively; The sliding unit can be linearly slidably arranged on the inner support mounting portion; The limiting unit is provided on the inner support mounting portion and is used to adjust the limiting position of the hinge unit and limit the hinge unit; The driving unit drives the sliding unit to perform linear motion by driving the hinge unit. When the hinge unit abuts against the limiting unit at the limiting position and is locked, the sliding unit adaptively abuts against the inner side wall of the frame of the workpiece to be welded.

2. The welding station according to claim 1, characterized in that The hinge unit includes a first rotating block and a second rotating block; the first rotating block is pivotally connected to the inner support mounting portion, the driving unit and the second rotating block respectively, and the second rotating block is pivotally connected to the sliding unit; the limit position is defined as: the pivot axis position between the first rotating block and the inner support mounting portion, the pivot axis position between the first rotating block and the second rotating block, and the pivot axis position between the second rotating block and the sliding unit are all on the same horizontal straight line.

3. The welding station according to claim 2, characterized in that The pivotal connection between the first rotating block and the driving unit is located above the pivotal connection between the first rotating block and the second rotating block, and the limiting unit is arranged below the first rotating block and close to the pivotal connection between the first rotating block and the second rotating block, and the limiting unit can be raised and lowered.

4. The welding station according to claim 3, characterized in that The limiting unit is a stud, and the lower end of the stud is threadedly connected to the inner support mounting portion.

5. The welding station according to any one of claims 1 to 4, characterized in that: The sliding unit includes a slider and a top block assembly. The slider is linearly slidably engaged with the inner support mounting portion. The top block assembly is fixed on the slider. The top block assembly is used to adaptively abut against the inner side wall of the frame of the workpiece to be welded.

6. The welding station according to claim 5, characterized in that The top block assembly includes a first top block and a second top block; the first top block and the second top block are located on the same side of the slider, and the first top block and the second top block are spaced apart from each other.

7. The welding station according to any one of claims 1 to 4, characterized in that: The dead point inner supporting mechanism is distributed along the four sides of the base.

8. The welding station according to claim 1, characterized in that The heating unit includes a support plate, a heat insulation plate and a heating plate. The support plate is installed on the base. The support plate, the heat insulation plate and the heating plate are stacked in sequence.

9. The welding station according to claim 8, characterized in that The heating plate includes an electric heating element and a rubber plate, and the electric heating element is distributed in the rubber plate.

10. The welding station according to claim 9, characterized in that The heating unit further includes a heat conducting plate, and the heat conducting plate covers the heating plate.

11. The welding station according to claim 1, characterized in that The pressure plate includes a pressure plate body, a hanging block and a pressure plate positioning assembly; the hanging block and the pressure plate positioning assembly are arranged on the pressure plate body; the gripping mechanism includes a mounting bracket, a hanging plate driving member, a hanging plate, a gripping assembly and a hanging plate positioning assembly; the hanging plate driving member is arranged on the mounting bracket and connected to the hanging plate to drive the hanging plate to move up and down; the gripping assembly is arranged on the hanging plate for connecting to and separating from the hanging block; the hanging plate positioning assembly is arranged on the hanging plate for cooperating with the pressure plate positioning assembly to accurately position the pressure plate.

12. The welding station according to claim 11, characterized in that The pressure plate positioning assembly includes a first positioning sleeve, the hanger plate positioning assembly includes a first positioning column extending vertically, and the first positioning column is used to cooperate with the first positioning sleeve; or the pressure plate positioning assembly includes a second positioning column extending vertically, the hanger plate positioning assembly includes a second positioning sleeve, and the second positioning column is used to cooperate with the second positioning sleeve.

13. The welding station according to claim 12, characterized in that The pressure plate positioning assembly further includes a first limiting column, and the hanging plate positioning assembly further includes a second limiting column, and the second limiting column and the first limiting column are directly opposite to each other.

14. The welding station according to claim 11, characterized in that The gripping mechanism further comprises a vertically extending linear guide rail assembly for slidingly guiding the hanging plate, wherein the linear guide rail assembly comprises a guide rail and a slider.

15. The welding station according to claim 11, characterized in that The gripping mechanism further includes a buffer, which is distributed on the hanging plate and the mounting bracket.

16. The welding station according to claim 11, characterized in that The pressure plate also includes a floating pressing mechanism, which is distributed around the periphery of the pressure plate body; the floating pressing mechanism includes a mounting block, a guide sleeve, a guide column, a pressure head and an elastic member; the mounting block is fixed on the upper side of the pressure plate body, the guide sleeve is fixed in the mounting block, the guide column can slide up and down through the guide sleeve, the mounting block and the pressure plate body, the upper end of the guide column has a blocking portion, the lower end of the guide column is fixed to the pressure head located on the lower side of the pressure plate, and the elastic member is arranged between the mounting block and the pressure head.

17. The welding station according to claim 16, characterized in that The floating pressing mechanism further includes a floating adjusting member, and the floating adjusting member is used to adjust the floating height of the pressing head.

18. The welding station according to claim 17, characterized in that The pressing plate further comprises locking pressing blocks, which are distributed at the four corners of the lower side of the pressing plate body.

19. The welding station according to any one of claims 11 to 18, characterized in that The hanging block is provided with a horizontally extending pin hole; the grabbing assembly includes a pin driving member and a horizontally extending pin connected to each other, and the pin driving member is fixed to the hanging plate to drive the pin to move horizontally, so that the pin is inserted into and exits the pin hole.

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