Welding station

Abstract

The invention discloses a welding station which comprises a gantry, a welding tool and a pressing plate gripper device. The gantry comprises a pedestal unit and a cross beam located above the pedestal unit. The welding tool comprises a base, a magnetic unit, a heating unit and a dead point inner supporting mechanism. The base is arranged on the pedestal unit, the magnetic unit, the heating unit and the dead point inner supporting mechanism are arranged on the base, the heating unit is used for heating a to-be-welded workpiece, and the dead point inner supporting mechanism is used for automatically abutting against the inner side wall of a frame of the to-be-welded workpiece; the pressing plate gripper device comprises a gripper mechanism and a pressing plate, the gripper mechanism is arranged on the cross beam and used for placing the pressing plate on the to-be-welded workpiece and moving the pressing plate away from the to-be-welded workpiece, and the magnetic unit is used for tightly attracting the pressing plate placed on the to-be-welded workpiece so as to tightly press the circumferential side of a welding bead of the to-be-welded workpiece. The welding quality, the welding production takt and the welding efficiency can be effectively improved, and the automation degree is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and 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 corresponding demand for new energy battery tray products has increased, and the welding quality and welding production efficiency requirements of battery trays are getting 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 welding quality requirements around the battery pallet, 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 rhythm and efficiency, and has a high degree of automation.

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

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

[0007] A welding tool, the 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 surrounding side of the weld bead 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, and cooperate with each other to weld the workpiece to be welded, thereby realizing fully automated welding and improving welding efficiency and automation level; the welding fixture clamps 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 arranged 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 line.

[0018] In some embodiments, the pivot connection between the first rotating block and the driving unit is located above the pivot connection between the first rotating block and the second rotating block, the limiting unit is arranged below the first rotating block and close to the pivot 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 matched 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 gripper 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 and separating with 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, and 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, and 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 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.

[0029] In some embodiments, the gripper mechanism further comprises a vertically extending linear guide assembly for guiding the hanging plate to slide, the linear guide assembly comprising a guide rail and a slider. In some embodiments, the gripper mechanism further comprises a buffer, the buffer being distributed on the hanging plate and the mounting bracket.

[0030] In some embodiments, the pressure plate also includes a floating clamping mechanism, which is distributed around the periphery of the pressure plate body; the floating clamping mechanism includes a mounting block, a guide sleeve, a guide column, a pressure head and an elastic member; the mounting block is fixed to 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, the pin driving member is fixed to the hanging plate and is used to drive the pin to move horizontally, so that the pin is inserted into and withdrawn from the pin hole.

[0034] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through 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 easily understood from the description of the embodiments in conjunction with the following drawings, in which:

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

[0037] Figure 2 It is a schematic diagram of the welding spindle unit and the pressure wheel in the present invention;

[0038] Figure 3 It is a schematic diagram of the welding tool in the present invention;

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

[0040] Figure 5 It is a top view schematic diagram of the dead point internal support mechanism of the welding tooling in the present invention;

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

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

[0043] Figure 8 It is a top view schematic diagram of the heating unit of the welding tool in the present invention;

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

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

[0046] Fig.11 A side view of the gripper device of the pressure plate in the present invention;

[0047] Fig.12 A top view of the gripper device of the pressure plate of the present invention;

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

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

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

[0051] Fig.16 It is a schematic diagram of the welding tool and the pressure plate clamping the workpiece to be welded in the present invention.

[0052] Reference numerals:

[0053] Welding stations 1000;

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

[0055] Welding tool 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; limit unit 225; heating unit 23; support plate 231; heat insulation plate 232; heating plate 233; heat conducting plate 234; magnetic unit 24; clamping mechanism 25; grinder 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 grabbing 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] Embodiments of the present invention are described in detail below, examples of which 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 only used to explain the present invention, and cannot be understood as limiting the present invention.

[0058] Combine the following Figures 1 to 16 The welding station 1000 according to the embodiment of the present invention is described.

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

[0060] Among them, 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 gripper device 300. For example, the pressure plate gripper 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 movably arranged on a side surface of the crossbeam 12, and the welding spindle unit 15 can be movably arranged 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, reliable structure, improved automation, and 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 Fig.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 arranged on the base 21, and 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 at 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 at 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 the automatic positioning of the workpiece to be welded; a conventional clamping mechanism 25 that can be automatically loosened and clamped is arranged around the base 21, and the clamping mechanism 25 is used to clamp the workpiece to be welded and the pressing plate 31 (reference Fig.16), such as the periphery of the workpiece to be welded, wherein the four-corner clamping mechanism 25 located at the base 21 clamps 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 inner 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, and ensures that the weld bead of the workpiece to be welded is clamped around the weld bead, 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 inner 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 surrounding sides of the weld such as the circumferential weld, can control the flatness and verticality of the product, and 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 gripper device 300 includes a gripper mechanism 32 and a pressure plate 31; the gripper mechanism 32 is arranged on the crossbeam 12, and the gripper 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 being beneficial to improving 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 surrounding side of the weld bead of the workpiece to be welded, which is beneficial to improving the welding quality.

[0063] A welding process of the welding station 1000 according to an embodiment of the present invention is given below. 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 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, and the pressure plate 31 is sucked by the magnetic unit 24, pressed on the workpiece to be welded, and the heating unit 23 is used to heat the workpiece to be welded; the welding station 1000 uses the welding spindle unit 15 to weld the workpiece to be welded, and 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, and cooperate with each other to weld the workpiece to be welded, so as to realize fully automated welding and improve welding efficiency and automation level. The welding fixture 200 clamps 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 the improvement of 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 the inner support mounting portion 221 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 disposed 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, 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, which is beneficial to improving the welding quality of the workpiece to be welded.

[0069] The limiting unit 225 is arranged on the inner support mounting portion 221, and is used to adjust the limiting position of the hinge unit 223 and limit the hinge unit 223. It can be 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, the sliding unit 224 can be accurately in the second position and abut against the inner wall of the frame of the workpiece to be welded, so as to realize the dead point inner support function of the dead point inner support mechanism 22, prevent the workpiece to be welded from shrinking inward during the welding process, and then effectively control the verticality of the workpiece to be welded, and ensure the welding quality of the workpiece to be welded. Since the limiting unit 225 can adjust the limiting position of the hinge unit 223, the hinge unit 223 is in a precise limiting position, so that the dead point inner support mechanism 22 can effectively control the verticality of the workpiece to be welded, and effectively improve 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 part 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 pivot connection between the first rotating block 2231 and the driving unit 222 is located above the pivot connection between the first rotating block 2231 and the second rotating block 2232, and the limiting unit 225 is arranged below the first rotating block 2231 and close to the pivot connection between the first rotating block 2231 and the second rotating block 2232, and 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 position between the first rotating block 2231 and the inner 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 line, which is convenient for adjustment.

[0074] It should be noted that if the limit unit 225 is replaced by other limit parts that cannot be raised or lowered and adjusted by themselves, the limit position of the hinge unit 223 will be inaccurate due to the processing errors in the sizes of the other limit parts, which will affect the inability of the sliding unit 224 to abut against the inner wall of the frame of the workpiece to be welded, and 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, and the lower end of the stud is threadedly connected to the inner support mounting portion 221. In this way, 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 position between the first rotating block 2231 and the inner 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 line, which is very convenient for adjustment.

[0076] In some embodiments, the sliding unit 224 includes a slider 2241 and a top block assembly 2242. The slider 2241 is linearly slidably matched 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 with an interval up and down, which can increase the side pushing 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 the second abutting surface as a whole protrudes 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.

[0079] In some embodiments, the dead point internal support mechanism 22 is distributed along the four sides of the base 21, that is, the dead point internal support mechanism 22 is symmetrically or asymmetrically distributed at two groups of opposite sides of the base 21. Specifically, the same number of dead point internal support mechanisms 22 are set on the opposite sides of the long sides of the base 21, and in the opposite sides of the long sides of the base 21, the dead point internal support mechanism 22 on one side is symmetrical or asymmetrical with respect to the dead point internal support mechanism 22 on the other side; the same number of dead point internal support mechanisms 22 are set on the opposite sides of the short sides of the base 21, and in the opposite sides of the short sides of the base 21, the dead point internal support mechanism 22 on one side is symmetrical or asymmetrical with respect to the dead point internal support mechanism 22 on the other side. In this way, by setting the dead point internal support mechanism 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, so as to avoid the workpiece to be welded from shrinking inward during the welding process and prevent the workpiece to be welded from shrinking and deforming inward.

[0080] In some embodiments, the heating unit 23 includes a support plate 231, a heat insulation plate 232 and a heating plate 233. The support plate 231 is installed on the base 21, and the heating unit 23 can be fixed on the base 21. The support plate 231, the heat insulation plate 232 and the heating plate 233 are stacked in sequence, wherein the support plate 231 can be a metal plate, such as an iron plate, which can reliably support the heat insulation plate 232; the heating plate 233 is used to generate heat, has a large heating area, and heats the workpiece to be welded evenly, which can prevent the workpiece to be welded from deforming, effectively control the flatness of the workpiece to be welded, and is conducive to improving the welding quality. The heat insulation plate 232 can effectively prevent the heat generated by the heating plate 233 from being transferred downward, so that the heat is transferred 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 heating element (not shown in the figure) and a rubber plate. The electric heating element is a heating element such as an electric heating wire, and the electric heating element is distributed in the rubber plate. The rubber plate protects and insulates the electric heating element and can evenly distribute heat. Preferably, the rubber plate can be a silicone plate.

[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 can 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 automated welding of the product without manual intervention.

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

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

[0089] During operation, the workpiece to be welded is located at a 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 with the hanging block 311 of the pressure plate 31 through the grabbing 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, and the pressure plate 31 can be prevented from being tilted on the workpiece to be welded, thereby avoiding interference between the pressure plate 31 and the welding spindle, avoiding collision, 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 beneficial to improving the welding quality of the workpiece to be welded. After the pressing plate 31 is placed on the workpiece to be welded, the grab assembly 323 is separated 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 is separated from the pressing plate positioning assembly 312, that is, the gripping mechanism 32 is separated from the pressing plate 31, so that the welding spindle can weld the workpiece to be welded. When the pressing plate 31 needs to be removed after the workpiece to be welded, the hanging plate driving member 321 drives the hanging plate 322 to descend, and after the hanging plate positioning assembly 324 cooperates with the pressing plate positioning assembly 312 and is connected to the hanging block 311 through the grab assembly 323, the hanging plate driving member 321 drives the hanging plate 322 and the pressing plate 31 to rise, waiting for the next time to place the pressing plate 31 on the next workpiece to be welded.

[0090] The pressure plate gripper device 300, on the one hand, realizes automatic gripping and releasing of the pressure plate 31 by the gripper mechanism 32 through the provision of the hanging plate driving member 321, the gripping assembly 323 and the hanging block 311, thereby improving the degree of automation, reducing manpower and increasing the production rhythm; on the other hand, through the hanging plate positioning assembly 324 and the pressure plate positioning assembly 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, thereby avoiding interference between the pressure plate 31 and the welding spindle, avoiding collision with the machine, reducing safety hazards, and also being beneficial to improving 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 hanging plate positioning assembly 324 includes a first positioning column 3241 extending vertically, and the first positioning column 3241 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, which can better achieve high-precision positioning of the pressure plate 31. Or the pressure plate positioning assembly 312 includes a second positioning column (not shown in the figure) extending vertically, and the hanging plate positioning assembly 324 includes a second positioning bushing (not shown in the figure), and the second positioning column 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, which can 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 column 3122, and the hanging plate positioning assembly 324 further includes a second limiting column 3242, and the second limiting column 3242 and the first limiting column 3122 are directly opposite to each other. By setting the first limiting column 3122 and the second limiting column 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 hanging plate 322 is limited to ensure that there is a reasonable space between the hanging plate 322 and the pressure plate 31 when the hanging plate 322 is lowered to the lowest position, so as to avoid the components on the lower side of the hanging 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 column 3241, from being crushed, and on the other hand, it is conducive to the gripping mechanism 32 to facilitate the connection between the grabbing assembly 323 and the hanging block 311 when the pressure plate 31 needs to be removed. Preferably, the first limiting posts 3122 and the second limiting posts 3242 may be provided in multiple groups.

[0093] In some embodiments, the gripper 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, the slider 3252 is fixed to the hanging plate 322, and the slider 3252 is slidably matched with the guide rail 3251. By setting 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, and 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 can enable the gripper 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 withdrawn from the pin hole.

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

[0097] Preferably, multiple groups of the hanging block 311 and the grabbing assembly 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 clamping mechanism 313, which is distributed around the pressure plate body 310; the floating clamping 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, 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, the upper end of the guide column 3133 has a blocking portion, which can prevent the guide column 3133 from falling off, 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, 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 arranging a floating clamping mechanism 313 around the pressing plate body 310 and directly pressing the workpiece to be welded with the pressing head 3134 of the floating clamping mechanism 313, the pressing plate 31 is adapted to the flatness tolerance of the workpiece to be welded, which is conducive to the pressing plate 31 being able to better clamp the workpiece to be welded and improve the 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 adjusting member 3136 , and the floating adjusting member 3136 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 conveniently 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 pressing blocks 314, which are distributed at the four corners of the lower side of the pressing plate body 310. The locking pressing blocks 314 can rigidly press the four corners of the workpiece to be welded and limit the floating pressing mechanism 313 at the same time.

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

[0105] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means 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, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0106] Although the 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 present invention, and that the scope of the present 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, the 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 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 surrounding side of the weld bead of the workpiece to be welded.

2. The welding station according to claim 1, characterized in that: The dead point internal support mechanism comprises 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 arranged 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.

3. The welding station according to claim 2, 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 line.

4. The welding station according to claim 3, characterized in that: The pivot connection between the first rotating block and the driving unit is located above the pivot 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 pivot connection between the first rotating block and the second rotating block, and the limiting unit can be raised and lowered.

5. The welding station according to claim 4, 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.

6. The welding station according to any one of claims 2 to 5, characterized in that: The sliding unit comprises a sliding block and a top block assembly. The sliding block is linearly slidably matched with the inner support mounting portion. The top block assembly is fixed on the sliding block. The top block assembly is used to adaptively abut against the inner side wall of the frame of the workpiece to be welded.

7. The welding station according to claim 6, 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 sliding block, and the first top block and the second top block are arranged with an interval up and down.

8. The welding station according to any one of claims 2 to 5, characterized in that: The dead point inner supporting mechanism is distributed along the periphery of the base.

9. The welding station according to claim 1, characterized in that: The heating unit comprises a supporting plate, a heat insulating plate and a heating plate, wherein the supporting plate is mounted on the base, and the supporting plate, the heat insulating plate and the heating plate are stacked in sequence.

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

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

12. 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 gripper 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.

13. The welding station according to claim 12, characterized in that The pressure plate positioning assembly includes a first positioning bushing, and 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, and the hanger plate positioning assembly includes a second positioning bushing, and the second positioning column is used to cooperate with the second positioning bushing.

14. The welding station according to claim 13, 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.

15. The welding station according to claim 12, characterized in that The gripper mechanism also includes a vertically extending linear guide assembly for slidingly guiding the hanging plate, and the linear guide assembly includes a guide rail and a slider.

16. The welding station according to claim 12, characterized in that The gripping mechanism further comprises a buffer, and the buffer is distributed on the hanging plate and the mounting bracket.

17. The welding station according to claim 12, characterized in that The pressure plate also includes a floating clamping mechanism, which is distributed around the periphery of the pressure plate body; the floating clamping mechanism includes a mounting block, a guide sleeve, a guide column, a pressure head and an elastic member; the mounting block is fixed to 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.

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

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

20. The welding station according to any one of claims 12 to 19, 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, the pin driving member is fixed to the hanging plate and is used to drive the pin to move horizontally, so that the pin is inserted into and withdrawn from the pin hole.

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