A welding device and control method

Abstract

The present invention relates to a welding device, comprising a welding mechanism for welding the joints of an automobile sunroof assembly, wherein the automobile sunroof assembly comprises two long plates and two short plates, and the welding device further comprises a welding station, a first magnetic attraction assembly, and a clamping mechanism, wherein the welding station comprises a material placement plane, and the material placement plane comprises two first target positions and two second target positions, the two first target positions being used to place two set short plates, and the short plates at the two first target positions are parallel and their ends are flush. The welding device, while adopting the technical means of a first vacuum adsorption component adsorbing the long plate and moving it along the first direction through a first driving end, further combines the characteristic of the first vacuum adsorption component undergoing elastic deformation during the splicing process of the long plate and the short plate, effectively solving the problem of poor splicing between the splicing surfaces of the long plate and the short plate, thereby achieving a splicing effect with high fit between the long plate and the short plate.

Description

Technical Field

[0001] The present invention relates to tailor-made welding equipment, and in particular to tailor-made welding equipment and a control method for automobile sunroofs. Background Art

[0002] With the rapid development of the automotive industry and consumers' increasing demand for automotive comfort, sunroofs have become an essential feature of modern vehicles. The frame structure of a sunroof is typically rectangular, consisting of two long and two short panels connected by splicing and welding. The precision and efficiency of this splicing and welding directly impact the overall quality and production efficiency of the sunroof. In actual production, to meet the demands of mass production, the welding equipment for sunroof frames must possess efficient and stable welding capabilities to ensure weld fit and strength, while also improving production efficiency and reducing manufacturing costs.

[0003] Traditional automotive sunroof welding equipment typically uses a single-strip welding method, meaning it can only complete the welding process one seam at a time. A rectangular sunroof frame consists of two long plates and two short plates, with a total of four seams. This requires traditional equipment to weld the entire frame four times, resulting in low welding efficiency. To address this issue, relevant manufacturers have developed a welding device capable of welding four seams simultaneously. This welding device incorporates a magnetic device to secure the short plates and a drive assembly to move the long plates and mate them with the short plates, enabling rapid assembly and welding of the short and long plates.

[0004] However, since the two short plates may have some slight deviation in their positions during placement, the two short plates will be restricted to the material placement plane of the welding table, and a small non-parallel gap will exist between the first joint surface of the two short plates and the second joint surface of the long plate. In addition, because the movement trajectory of the long plate is restricted to linearity, during the welding process, the second joint surface of the long plate and the first joint surface of the short plate are difficult to completely align when they are joined, resulting in a gap in the joint seam, affecting the welding quality. Therefore, it is urgent to propose a welding device to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a welding device that improves welding quality by adding a magnetic suction component and a controllable vacuum adsorption and driving component to ensure the positioning accuracy of short plates and the splicing accuracy of long plates.

[0006] The technical solution adopted by the present invention to solve the above-mentioned problem is: a tailor-made welding device, including a welding mechanism, for welding the joint seams of an automobile sunroof assembly, wherein the automobile sunroof assembly includes two long plates and two short plates, and the tailor-made welding device also includes:

[0007] The soldering station includes a loading plane, which includes two first target positions and two second target positions. The two first target positions are used to place two short plates, and the short plates at the two first target positions are parallel and their ends are flush, and the ends of the short plates are first splicing surfaces. The two second target positions are used to place two long plates, and the long plates at the two second target positions are parallel and respectively located on both sides of the short plates, and the sides of the two long plates facing each other are second splicing surfaces, and the long side direction of the long plate at the second target position is perpendicular to the long side direction of the short plate at the first target position. The first target position and the second target position are configured so that when the short plate and the long plate are respectively at the first target position and the second target position, the first splicing surface is parallel to the second splicing surface, and a preset distance is left between the first splicing surface and the second splicing surface.

[0008] The first magnetic attraction component is arranged in the soldering station. The first magnetic attraction component is controlled to generate a magnetic field at the first target position so as to apply a magnetic attraction force to the short plate located at the first target position when in a working state.

[0009] Clamping mechanism, comprising:

[0010] Two first adsorption components are controlled to move relative to each other or move away from each other, and the movement direction of the two first adsorption components is defined as a first direction. The first adsorption components include:

[0011] The first driver includes a first driving end, wherein the first driving end is controlled to move along the first direction, and the moving direction of the first driving end is perpendicular to the first joint surface.

[0012] The first vacuum adsorption member is controlled to be adsorbed on the long plate. The first vacuum adsorption member is connected to the first driving end so as to move with the first driving end. In addition, the first vacuum adsorption member is configured to undergo elastic deformation when the first joint surface of the long plate abuts against the second joint surface of the short plate.

[0013] In which, when the welding equipment is in working state, the first magnetic attraction component applies magnetic attraction force to the short plate at the first target position to limit the short plate at the first target position, and the first vacuum attraction component, driven by the first driving end, drives the long plate located at the second target position and adsorbed to move toward the short plate located near the second target position. The moving distance of the first driving end is the target length, and the target length is greater than the preset spacing, so that the second splicing surface of the long plate is in contact with the first splicing surface of the short plate located at the first target position.

[0014] Preferably, the tailor welding equipment further comprises:

[0015] A pre-positioning platform, comprising a positioning plane, further comprising:

[0016] A plurality of first positioning members are arranged at the positioning plane, and the plurality of first positioning members enclose two first pre-positioning areas at the positioning plane. The shape and size of the first pre-positioning areas are the same as the shape and size of the short plates, and the first pre-positioning areas are configured so that when the two short plates are respectively placed in the two first pre-positioning areas, the two short plates are arranged in parallel, and the first joint surfaces of the two short plates are flush.

[0017] A plurality of second positioning members are arranged at the positioning plane, and the plurality of second positioning members enclose two second pre-positioning areas at the positioning plane. The shape and size of the second pre-positioning areas are the same as the shape and size of the long plates, and the second pre-positioning areas are configured so that when the two long plates are respectively placed in the two second pre-positioning areas, the two long plates are arranged in parallel, and the distance between the second splicing surface of the long plate and the first splicing surface of the short plate placed in the first pre-positioning area is the preset distance.

[0018] Preferably, the clamping mechanism further comprises:

[0019] The bracket is controlled to rise and fall and translate, and the first adsorption component is connected to the bracket to move with the bracket.

[0020] The second vacuum adsorption member is controlled to be adsorbed on the short plate, and the second vacuum adsorption member is connected to the bracket to move with the bracket.

[0021] Preferably, the tailor welding equipment further comprises:

[0022] The second magnetic attraction component is arranged in the welding table. The second magnetic attraction component generates a magnetic field in a controlled manner to apply a magnetic attraction force to the long plate after the second joint surface of the long plate is attached to the first joint surface of the short plate, so as to limit the movement of the long plate.

[0023] Preferably, the first vacuum adsorption component is a vacuum suction cup, and the vacuum suction cup is configured to be elastically deformed when the second joint surface of the long board abuts against the first joint surface of the short board.

[0024] Preferably, the first adsorption component further includes:

[0025] The vacuum generator operates in a controlled manner and is connected to the first vacuum adsorption member to adjust the vacuum degree of the first vacuum adsorption member.

[0026] Preferably:

[0027] The first adsorption assembly further includes a vacuum generator, which operates in a controlled manner and is connected to the first vacuum adsorption member to adjust the vacuum degree of the first vacuum adsorption member.

[0028] The clamping mechanism further comprises:

[0029] The bracket is controlled to rise and fall and translate, and the first adsorption component is connected to the bracket to move with the bracket.

[0030] The second vacuum adsorption member is controlled to be adsorbed on the short plate, and the second vacuum adsorption member is connected to the bracket to move with the bracket.

[0031] The tailor welding equipment further comprises:

[0032] A pre-positioning platform, comprising a positioning plane, further comprising:

[0033] A plurality of first positioning members are arranged at the positioning plane, and the plurality of first positioning members enclose two first pre-positioning areas at the positioning plane. The shape and size of the first pre-positioning areas are the same as the shape and size of the short plates, and the first pre-positioning areas are configured so that when the two short plates are respectively placed in the two first pre-positioning areas, the two short plates are arranged in parallel, and the first joint surfaces of the two short plates are flush.

[0034] A plurality of second positioning members are arranged at the positioning plane, and the plurality of second positioning members enclose two second pre-positioning areas at the positioning plane. The shape and size of the second pre-positioning areas are the same as the shape and size of the long plates, and the second pre-positioning areas are configured so that when the two long plates are respectively placed in the two second pre-positioning areas, the two long plates are arranged in parallel, and the distance between the second splicing surface of the long plate and the first splicing surface of the short plate placed in the first pre-positioning area is the preset distance.

[0035] The second magnetic attraction component is arranged in the welding table. The second magnetic attraction component generates a magnetic field in a controlled manner to apply a magnetic attraction force to the long plate after the second joint surface of the long plate is attached to the first joint surface of the short plate, so as to limit the movement of the long plate.

[0036] A controller is connected to the soldering station, the first magnetic component, the second magnetic component and the clamping mechanism to control the operation of the soldering station, the first magnetic component, the second magnetic component and the clamping mechanism.

[0037] In particular, a control method for a tailor-made welding device as described above includes:

[0038] The short plates placed at the two first pre-positioning areas and the long plates placed at the two second pre-positioning areas are respectively moved to the two first target positions and the two second target positions of the material loading plane by the clamping mechanism.

[0039] A magnetic field is generated at the two first target positions by the two first magnetic attraction components, so as to adsorb the two short plates at the two first target positions respectively.

[0040] The two first driving ends drive the two first vacuum adsorption parts to move relative to each other, so that the long board adsorbed by the two first vacuum adsorption parts moves toward the short board by the target length, so that the second joint surface of the long board is in contact with the first joint surface of the short board.

[0041] Preferably, the tailor welding equipment further comprises:

[0042] A first sensor is provided at the first driving end of the first driver to detect a force state of the first driving end during a controlled movement process.

[0043] In the control method, the two first driving ends drive the two first vacuum adsorption members to move relative to each other, so that the long board adsorbed by the two first vacuum adsorption members moves toward the short board by the target length, so that the second joint surface of the long board is in contact with the first joint surface of the short board, including the following steps:

[0044] The first driving ends of the two first adsorption components are moved in opposite directions, and the moving distance of each first driving end is the target length.

[0045] The change in the force state of the first driving end is monitored by the first sensor.

[0046] If the first sensor detects that the change in the force state of the first driving end is consistent with the change in the force state of the first driving end when the first vacuum adsorption component and the long board slide relative to each other, the first driving end stops moving.

[0047] If the first sensor detects that the change in the force state of the first driving end is different from the change in the force state of the first driving end when the first vacuum adsorption component and the long board slide relative to each other, the vacuum generator is used to release the first vacuum adsorption component from the long board and stop the first driving end from moving.

[0048] Preferably, the tailor welding equipment further comprises:

[0049] The second sensor is provided at the first adsorption assembly to detect the pressure value borne by the first vacuum adsorption component during the process of joining the second joining surface of the long board and the first joining surface of the short board.

[0050] The control method further includes:

[0051] Before moving the first driving ends of the two first adsorption components in relative directions, the bracket is controlled to move downward so that both the long plate and the short plate abut against the material placement plane until the pressure value measured by the second sensor is greater than a preset pressure value.

[0052] The beneficial effects of the embodiments of the present invention are as follows:

[0053] This welding equipment, by adopting the technical means of magnetically fixing the short plate by a first magnetic attraction component, can limit the short plate to the first target position of the material loading plane, thereby achieving precise positioning of the short plate, and further adopting the technical means of adsorbing the long plate by a first vacuum adsorption component and moving it along the first direction through the first driving end, and combining it with the elastic deformation characteristics of the first vacuum adsorption component, can effectively solve the problem of poor fitting caused by a small non-parallel gap between the first joining surface of the short plate and the second joining surface of the long plate when the long plate and the short plate are spliced ​​together, thereby achieving a high-fitting splicing effect between the long plate and the short plate.

[0054] The control method of the tailor-welding equipment adopts a technical means to detect the change of the force state during the movement of the first driving end by a first sensor, and judge whether the long plate and the short plate are fitted or slipped according to the change of the force state. Therefore, it effectively solves the problem of damage to the first vacuum adsorption part caused by insufficient fitting force or excessive movement during the movement of the long plate, thereby achieving the technical effect of precise fitting of the long plate and the short plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 Schematic diagram of the structure of the tailor-made welding equipment in an embodiment of the present invention.

[0056] Figure 2 It is a schematic structural diagram of a skylight assembly placed on a material placement plane in an embodiment of the present invention.

[0057] Figure 3 Schematic diagram of the structure of the long board in an embodiment of the present invention.

[0058] Figure 4 It is a schematic structural diagram of the short board in an embodiment of the present invention.

[0059] Figure 5 It is a schematic structural diagram of a skylight assembly placed on a positioning plane in an embodiment of the present invention.

[0060] Figure 6Schematic diagram of the structure of the clamping mechanism in an embodiment of the present invention.

[0061] Among them: 10, skylight assembly; 110, long board; 111, second joint surface; 120, short board; 121, first joint surface; 20, welding station; 210, material placement plane; 211, first target position; 212, second target position; 30, pre-positioning station; 310, positioning plane; 320, first positioning member; 330, second positioning member; 40, clamping mechanism; 410, first adsorption assembly; 411, first driver; 4111, first driving end; 412, first vacuum adsorption member; 420, bracket; 430, second vacuum adsorption member. DETAILED DESCRIPTION

[0062] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0063] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description created by the present application, unless otherwise specified, "multiple" means two or more.

[0064] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0065] In a preferred embodiment of the present application, a welding device is provided, including a welding mechanism (not shown in the figure). The welding mechanism is a welding mechanism used for traditional automobile sunroof welding, and there is no need to elaborate here. The welding mechanism is used to weld the completed automobile sunroof assembly 10, wherein the automobile sunroof assembly 10 generally includes two long plates 110 and two short plates 120.

[0066] Specifically, the long board 110 and the short board 120 are both rectangular, the long side direction of the long board 110 corresponds to its own length direction, and the short side direction of the rectangular long board 110 corresponds to its own width direction. Similarly, the long side direction and short side direction of the short board 120 also correspond to its own length direction and width direction, respectively.

[0067] like Figures 1 to 4 and Figure 6As shown, the tailor-welding equipment includes a welding station 20, a first magnetic attraction component and a clamping mechanism 40, wherein the welding station 20 includes a material placement plane 210, and the material placement plane 210 includes two first target positions 211 and two second target positions 212. The two first target positions 211 are used to place two short plates 120, and the short plates 120 at the two first target positions 211 are parallel and the ends are flush, and the ends of the short plates 120 are the first joint surfaces 121. The two second target positions 212 are used to place two long plates 110, and the ends are flush. The long plates 110 at the two second target positions 212 are parallel and located on either side of the short plate 120. The opposing sides of the two long plates 110 are second joint surfaces 111. The long sides of the long plates 110 at the second target positions 212 are perpendicular to the long sides of the short plates 120 at the first target positions 211. When the short plates 120 and the long plates 110 are at the first target positions 211 and the second target positions 212, respectively, a predetermined distance a exists between the first joint surfaces 121 and the second joint surfaces 111. A first magnetic attraction component is disposed within the soldering station 20 and is controlled to generate a magnetic field at the first target position 211 to apply a magnetic attraction force to the short plates 120 at the first target position 211 when in operation. The clamping mechanism 40 includes two first adsorption components 410, which are controlled to move relative to or away from each other, and the moving direction of the two first adsorption components 410 is defined as a first direction. The first adsorption component 410 includes a first driver 411 and a first vacuum adsorption component, wherein the first driver 411 includes a first driving end 4111, and the first driving end 4111 is controlled to move along the first direction, and the moving direction of the first driving end 4111 is parallel to the long side direction of the short plate 120 located at the first target position 211. The first vacuum adsorption component 412 is controlled to be adsorbed on the long plate 110, and the first vacuum adsorption component 412 is connected to the first driving end 4111 to move with the first driving end 4111, and the first vacuum adsorption component 412 is configured to undergo elastic deformation when the first mating surface 121 of the long plate 110 abuts the second mating surface 111 of the short plate 120.

[0068] When the welding equipment is in working condition, the first magnetic attraction component applies a magnetic attraction force to the short plate 120 at the first target position 211 to limit the short plate 120 at the first target position 211, and the first vacuum adsorption component 412 drives the long plate 110 located at the second target position 212 and adsorbed under the drive of the first driving end 4111 to move toward the short plate 120 located at the second target position 212. The moving distance of the first driving end 4111 is the target length, and the target length is greater than the preset spacing, so that the second splicing surface 111 of the long plate 110 is in contact with the first splicing surface 121 of the short plate 120 located at the first target position 211.

[0069] Specifically, the two first target positions 211 and the two second target positions 212 are reflected as rectangular frames on the loading plane 210, and the size of the first target position 211 should be slightly larger than the size of the short board 120 so that the short board 120 can be accommodated within the first target position 211. Similarly, the size of the second target position 212 should also be slightly larger than the size of the long board 110. Moreover, when the short board 120 and the long board 110 are transferred to the first target position 211 and the second target position 212 respectively, the long side and the short side of the short board 120 should be approximately parallel to the length direction and width direction of the first target position 211, respectively. Similarly, the long side of the long board 110 and the short board 120 should also be approximately parallel to the length direction and width direction of the second target position 212, respectively.

[0070] The welding mechanism (not shown in the figure) is used to weld the joints of the long plate 110 and the short plate 120 after they are assembled. The welding mechanism adopts the welding device used for traditional automobile sunroof welding, which will not be described in detail here.

[0071] The first magnetic component is arranged inside the soldering station 20, specifically, it should be located directly below the first target position 211, and the number of the first magnetic components should be two to correspond to the two first target positions 211, and the first magnetic component can generate a magnetic field in a controlled manner. When in working state, the first magnetic component generates a magnetic field to fix the short plate 120 at the first target position 211 to prevent its position from shifting. The first magnetic component can be embodied as an electromagnet in a specific manner. The electromagnet is a mature existing technology and will not be described in detail here.

[0072] The first driver 411 includes a first driving end 4111, which can move along a first direction (a direction perpendicular to the first joint surface 121) and can be controlled to achieve relative or reverse movement. The first driver 411 can be specifically embodied as an electric push cylinder controlled by a servo motor.

[0073] The first vacuum adsorption component 412 can be connected to the first driving end 4111 through a mounting bracket 420 or other mechanism (not shown in the figure), so that the first vacuum adsorption component 412 moves with the first driving end 4111, and the first vacuum adsorption component 412 adsorbs the long plate 110 and makes the long plate 110 move with the first driving end 4111. The first vacuum adsorption component 412 is specifically embodied as a vacuum suction cup. Since the vacuum suction cup has good elastic deformation performance, when the second joint surface 111 of the long plate 110 abuts the first joint surface 121 of the short plate 120, the elastic deformation of the vacuum suction cup can compensate for the excessive displacement of the long plate 110 described later, and with the cooperation of the excessive displacement and the elastic deformation performance of the vacuum suction cup, the adaptive offset after the second joint surface 111 of the long plate 110 abuts the first joint surface 121 of the short plate 120 is realized, so that the second joint surface 111 of the long plate 110 is as close to the first joint surface 121 of the short plate 120 as possible, thereby reducing the joint seam and reducing the impact on the welding quality.

[0074] After the short plate 120 and the long plate 110 are transferred to the first target position 211 and the second target position 212, respectively, the first magnetic attraction assembly is activated to generate a magnetic field to exert a magnetic attraction force on the short plate 120, ensuring that the short plate 120 remains stable at the first target position 211. The first vacuum attraction member 412 of the clamping mechanism 40 is attracted to the long plate 110 and, by controlling the first driving end 4111, drives the long plate 110 toward the short plate 120. The movement direction of the first driving end 4111 is parallel to the long side of the first target position 211 (i.e., parallel to the long side of the short plate 120). Furthermore, the movement distance of the first driving end 4111 is the target length, which is greater than the preset spacing. This ensures that the long plate 110 at the second target position 212 moves the target length in the first direction, thereby ensuring that the second joint surface 111 of the long plate 110 is aligned with the first joint surface 121 of the short plate 120, minimizing the gap between the joint surfaces and providing a high-precision foundation for subsequent welding.

[0075] Furthermore, the welding equipment in the present application can also be used for other rectangular or polygonal frame components that require multilateral welding, such as door frames, window frames, etc.

[0076] In this embodiment, by adopting the technical means of magnetically fixing the short plate 120 with the first magnetic attraction component, the short plate 120 can be restricted to the first target position 211 of the loading plane 210, thereby achieving precise positioning of the short plate 120, and further adopting the technical means of the first vacuum adsorption component 412 adsorbing the long plate 110 and moving it along the first direction through the first driving end 4111, and combining it with the elastic deformation characteristics of the first vacuum adsorption component 412, it can effectively solve the problem of poor fitting caused by the slight non-parallel gap between the first splicing surface 121 of the short plate 120 and the second splicing surface 111 of the long plate 110 when the long plate 110 and the short plate 120 are spliced ​​together, thereby achieving a high-fitting splicing effect between the long plate 110 and the short plate 120.

[0077] Before the sunroof assembly 10 (two long plates 110 and two short plates 120) is transferred to the welding station 20, the two long plates 110 and the two short plates 120 need to be pre-positioned. Figure 5 As shown, in some embodiments, the tailor-made welding apparatus further includes a pre-positioning station 30 .

[0078] A positioning plane 310 is constructed on the pre-positioning platform 30, which is used to place the sunroof assembly 10. The pre-positioning platform 30 also includes a plurality of first positioning members 320 and a plurality of second positioning members 330. The plurality of first positioning members 320 are installed on the pre-positioning platform 30 to enclose two first pre-positioning areas at the positioning plane 310. The shape and size of the first pre-positioning areas are the same as the shape and size of the short panels 120. The first pre-positioning areas are configured so that when the two short panels 120 are placed in the two first pre-positioning areas, the two short panels 120 are arranged in parallel, and the first joint surfaces 121 of the two short panels 120 are flush. Specifically, the first pre-positioning area is reflected on the positioning plane 310 as a rectangular outline, which should be a rectangular cylindrical space. This space is used to place the short panels 120 and restrict the movement of the short panels 120 within the plane.

[0079] The positioning plane 310 is a horizontal plane used to support the placement of the long board 110 and the short board 120 to ensure the position accuracy of the components.

[0080] Several second positioning members 330 are disposed on the pre-positioning platform 30. These members are installed on the pre-positioning platform 30 to enclose two second pre-positioning areas. The shape and size of the second pre-positioning areas are identical to those of the long boards 110. The second pre-positioning areas are configured such that, when two long boards 110 are placed in the two second pre-positioning areas, the two long boards 110 are arranged parallel to each other, and the spacing between the second mating surfaces 111 of the long boards 110 and the first mating surfaces 121 of the short boards 120 placed in the first pre-positioning areas is a predetermined spacing. Specifically, the second pre-positioning areas are rectangular in shape on the positioning plane 310, specifically, a rectangular cylindrical space that is used to accommodate the long boards 110 and restrict their movement within the plane. Among them, the preset spacing is the shortest distance between the first pre-positioning area and the second pre-positioning area, which is usually determined by the first positioning member 320 and the second positioning member 330. In a specific manner, the first positioning member 320 and the second positioning member 330 can be embodied as positioning pins, and the diameters of the positioning pins corresponding to the first positioning member 320 and the second positioning member 330 are the same. At this time, the diameter of the positioning pins is the preset spacing.

[0081] It should be noted that in order to transfer the pre-positioned long plates 110 and short plates 120, the preset spacing needs to be slightly larger than the diameter of the positioning pins, usually wire to wire, so that the plates in the first pre-positioning area and / or the second pre-positioning area can be removed, and it can be understood that the gap of the joints to be welded between the plates is much larger than wire to wire, so the preset spacing slightly larger than the diameter of the positioning pins will not affect the pre-positioning.

[0082] The two short boards 120 are placed in the two first pre-positioning areas on the pre-positioning table 30. The first positioning members 320 ensure that the first joint surfaces 121 of the two short boards 120 are approximately parallel and their ends are approximately flush through physical positioning. The ends here refer to the width of the short boards 120 on the corresponding side. The two long boards 110 are placed in the two second pre-positioning areas on the pre-positioning table 30. The two second positioning members 330 ensure that the second joint surfaces 111 of the long boards 110 are approximately parallel and maintain a consistent preset spacing with the first joint surfaces 121 of the short boards 120 through physical positioning. Through the precise layout of the first positioning members 320 and the second positioning members 330, the long boards 110 and the short boards 120 achieve high relative positioning accuracy during the pre-positioning stage, reducing the need for additional adjustments when subsequently transferred to the welding station 20. After completing the pre-positioning, the clamping mechanism 40 or other auxiliary equipment accurately transfers the short plate 120 and the long plate 110 from the pre-positioning table 30 to the material placement plane 210 of the welding table 20, maintaining the parallelism and preset spacing formed in the pre-positioning stage, and directly carrying out the subsequent welding operation.

[0083] First, due to the technical means of forming the first and second pre-positioning areas with the first and second positioning members 320 and 330, this embodiment effectively solves the problem of the long plate 110 and the short plate 120 being unable to achieve precise parallel positioning before being transferred to the welding station 20, thereby achieving a high-precision pre-positioning effect for the long plate 110 and the short plate 120. Secondly, due to the technical means of maintaining the preset spacing between the long plate 110 and the short plate 120 through the limiting structure in the first and second pre-positioning areas, the problem of poor fitting of the long plate 110 and the short plate 120 due to spacing errors before welding is effectively solved, thereby achieving precise preparation for the welding assembly during the pre-positioning stage. In addition, the modular design of the pre-positioning station 30 accommodates a variety of component sizes and shapes, and can flexibly adapt to the production requirements of different products by adjusting the layout of the positioning members, significantly improving the adaptability and practicality of the equipment. Therefore, through the above technical means, the pre-positioning table 30 of the present invention significantly improves the initial splicing accuracy of the long plate 110 and the short plate 120, reduces the adjustment workload in the subsequent welding stage, and thus improves the overall production efficiency and welding quality.

[0084] In order to transfer the skylight assembly 10 (two long plates 110 and two short plates 120) that has been pre-positioned at the pre-positioning table 30 to the material placement plane 210 of the welding table 20, the clamping mechanism 40 also includes a bracket 420 and a second vacuum adsorption component 430. The bracket 420 is controlled to rise and fall and translate. The first adsorption component 410 is connected to the bracket 420 to move with the bracket 420. The second vacuum adsorption component 430 is controlled to adsorb the short plates 120, and the second vacuum adsorption component 430 is connected to the bracket 420 to move with the bracket 420.

[0085] Specifically, the bracket 420 is connected to the first adsorption component 410 and the second vacuum adsorption component 430, and can be raised and lowered and translated in a controlled manner in the vertical and horizontal directions. The lifting function of the bracket 420 is used to lift the clamped long plate 110 and short plate 120 from the pre-positioning table 30 and move them smoothly to the welding table 20. The translation function of the bracket 420 is used to complete the lateral transfer from the pre-positioning table 30 to the welding table 20. The controlled movement of the bracket 420 is specifically driven by a stroke mechanism (not shown in the figure), which includes a pneumatic cylinder, an electric push cylinder, an electric slide, or a robotic arm. The stroke mechanism is a mature existing technology and will not be described in detail here.

[0086] When the second vacuum adsorption member 430 is disposed on the bracket 420, it can be controlled to adsorb to the short panel 120. In addition, the second vacuum adsorption member 430 should remain relatively stationary during the transfer of the short panel 120 to ensure that the posture of the short panel 120 remains stable during the transfer and its relative position with the long panel 110 does not change. Similarly, the first vacuum adsorption member 412 should also remain relatively stationary during the transfer of the long panel 110. In summary, the first adsorption assembly 410 works in conjunction with the second vacuum adsorption member 430 through the bracket 420 to achieve the precise transfer of the entire sunroof assembly 10.

[0087] The process of transferring the pre-positioned sunroof assembly 10 includes the following steps:

[0088] First, suction and initial positioning are required. After the two long panels 110 and the two short panels 120 of the sunroof assembly 10 are pre-positioned, the bracket 420 is controlled to lower to the pre-positioning platform 30. The first vacuum suction element 412 of the first suction assembly 410 is activated, suctioning the long panels 110. Simultaneously, the second vacuum suction element 430 is activated, suctioning the short panels 120, ensuring that the various components of the sunroof assembly 10 are securely clamped on the pre-positioning platform 30.

[0089] Next, the vertical lifting is performed. The bracket 420 is raised in a controlled manner to lift the adsorbed long board 110 and short board 120 off the pre-positioning platform 30 to ensure that the components do not interfere with the positioning parts of the pre-positioning platform 30 during the movement.

[0090] Then, the bracket 420 is moved in a controlled manner along the translation direction to transfer the long plate 110 and the short plate 120 as a whole to the material placement plane 210 of the welding station 20 .

[0091] During the translation process, the first vacuum adsorption member 412 and the second vacuum adsorption member 430 always maintain adsorption on the long board 110 and the short board 120 to ensure that the preset relative position (including parallelism and preset spacing) between the long board 110 and the short board 120 does not shift.

[0092] After the bracket 420 has completed its translation, it is controlled to descend to the height of the material placement plane 210 of the soldering station 20 and to move in plane, so that the long board 110 and the short board 120 are placed at the second target position 212 and the first target position 211 of the soldering station 20, respectively.

[0093] At this time, the first joint surfaces 121 and the second joint surfaces 111 of the short plate 120 and the long plate 110 maintain a preset parallel relationship and spacing, providing a high-precision joint foundation for subsequent welding operations.

[0094] The clamping mechanism 40 is suitable for transferring and positioning components in industrial production lines, and is particularly suitable for high-precision welding of large frames (such as automobile sunroof frames).

[0095] In some scenarios, the lifting and translation functions of the bracket 420 can be achieved by a robotic arm or a multi-degree-of-freedom robot to adapt to more complex working environments. The second vacuum suction member 430 can be replaced with a mechanical clamping device to fix the short plate 120, which is suitable for assemblies made of non-planar or non-magnetic materials.

[0096] This embodiment adopts the technical means of linking the bracket 420 with the first adsorption component 410 and the second vacuum adsorption component 430, thereby effectively solving the problem of insufficient welding accuracy of the long plate 110 and the short plate 120 caused by position offset during the transfer process from the pre-positioning table 30 to the welding table 20, thereby achieving the technical effect of high-precision transfer and stable placement of the long plate 110 and the short plate 120.

[0097] The clamping mechanism 40 features a simple design and strong adaptability. Through the flexible lifting and translation capabilities of the bracket 420, it can accommodate a variety of frame components of different shapes and sizes, significantly improving the flexibility and practicality of the equipment while also meeting the requirements of high-precision production. Therefore, through the above technical means, the clamping mechanism 40 of this tailored welding equipment achieves precise transition from the pre-positioning stage to the welding stage, effectively ensuring welding quality and production efficiency, and further enhancing the reliability and consistency of the production of automotive sunroof assemblies 10.

[0098] Furthermore, in order to limit the long plate 110 after the long plate 110 and the short plate 120 are spliced ​​together, in some embodiments, the welding equipment also includes a second magnetic attraction component (not shown in the figure), which is arranged in the welding table 20. The second magnetic attraction component generates a magnetic field in a controlled manner to apply a magnetic attraction force to the long plate 110 after the second splicing surface 111 of the long plate 110 and the first splicing surface 121 of the short plate 120 are bonded to limit the movement of the long plate 110.

[0099] Specifically, the second magnetic assembly is installed inside the welding station 20. Once the second mating surface 111 of the long board 110 and the first mating surface 121 of the short board 120 are aligned, the second magnetic assembly activates to generate a magnetic field, applying a magnetic force to the long board 110. This magnetic force restrains the long board 110 and prevents it from moving during the welding process. Therefore, the second magnetic assembly should be installed directly below the assembled long board 110 to prevent movement.

[0100] The specific control process of the second magnetic attraction component is as follows:

[0101] Under the action of the clamping mechanism 40, the long plate 110 is moved to the position of the short plate 120, and the second joint surface 111 of the long plate 110 is fitted with the first joint surface 121 of the short plate 120. At this time, the controller detects that the joint is completed and starts the second magnetic attraction component. The second magnetic attraction component generates a magnetic field and applies a downward magnetic attraction force to the long plate 110, so that the long plate 110 is firmly fixed on the material plane 210, limiting the movement and shaking of the long plate 110, ensuring that the long plate 110 remains stable during the welding process, and avoiding position displacement caused by external force or vibration. After the long plate 110 and the short plate 120 are stably limited, the welding mechanism begins to weld the joint seam between the long plate 110 and the short plate 120. The second magnetic attraction component continues to operate throughout the welding process to ensure the relative position of the components during the welding process is accurate. After the welding is completed, the controller turns off the second magnetic attraction component, the limit of the long plate 110 and the short plate 120 is released, and the welding equipment enters the next production cycle.

[0102] This technical solution is suitable for industrial production scenarios that require long-term stable fixation of components, such as high-precision welding of car sunroof frames.

[0103] In some usage scenarios, if the materials of the long board 110 and the short board 120 cannot meet the magnetic attraction requirements, the second magnetic attraction component can be replaced with a mechanical limiting device (such as a clamping mechanism or a hydraulic limiting mechanism) to fix the long board 110 by mechanical force.

[0104] Furthermore, the magnetic attraction of the second magnetic assembly can be dynamically adjusted by a controller to accommodate long plates 110 of varying materials, thicknesses, and shapes, ensuring effective and stable positioning. For applications requiring higher positioning accuracy or to avoid interference with the welding process due to magnetic attraction, non-contact positioning solutions, such as electrostatic adsorption devices or pneumatic positioning devices, can be employed.

[0105] In this embodiment, firstly, since the second magnetic component is used to magnetically limit the long plate 110, the problem of positional displacement of the long plate 110 due to vibration or external force during the welding process is effectively solved, thereby achieving high stability and high precision of the joint seam between the long plate 110 and the short plate 120 during the welding process. Secondly, since the magnetic force of the second magnetic component can act on the long plate 110 in real time after the splicing is completed, the problem of the long plate 110 being difficult to stably fix after splicing is effectively solved, thereby achieving precise positioning and efficient operation of the long plate 110 during the welding process. This solution replaces the traditional mechanical clamp limit with magnetic limit, reducing physical interference and the use of complex mechanisms, thereby effectively reducing the maintenance cost of the equipment and achieving simplicity and reliability of the equipment design. In addition, this technical solution is suitable for a variety of long plate 110 components of different sizes and shapes, and can adapt to plates of different thicknesses and materials by adjusting the magnetic force, thereby improving the versatility and practicality of the welding equipment.

[0106] In summary, by adding a second magnetic attraction component in the welding station 20, the stability of the long plate 110 and the short plate 120 during the welding process is significantly improved, the reliability of the welding quality is ensured, and the operation process and production efficiency of the equipment are optimized, providing reliable technical guarantee for the efficient production of the automobile sunroof assembly 10.

[0107] Furthermore, in order to control the vacuum degree of the first vacuum adsorption component 412, in some embodiments, the first adsorption assembly 410 also includes a vacuum generator (not shown in the figure), which is connected to the first vacuum adsorption component 412 through a pipeline, and the vacuum generator operates in a controlled manner to adjust the vacuum degree of the first vacuum adsorption component 412.

[0108] In order to achieve a better splicing effect during use, the welding equipment in this application specifically proposes a control method for the welding equipment. In order to adapt to this control method, the welding equipment also includes a controller, which is connected to the welding table 20, the first magnetic component, the second magnetic component, and the clamping mechanism 40 to control the operation of the welding table 20, the first magnetic component, the second magnetic component, and the clamping mechanism 40. The control method includes the following steps:

[0109] The short plates 120 placed at the two first pre-positioning areas and the long plates 110 placed at the two second pre-positioning areas are moved to the two first target positions 211 and the two second target positions 212 of the loading plane respectively by the clamping mechanism 40 .

[0110] A magnetic field is generated at the two first target positions 211 by the two first magnetic attraction components, so as to adsorb the two short plates 120 at the two first target positions 211 respectively.

[0111] The two first driving ends 4111 drive the two first vacuum adsorption parts 412 to move relative to each other, so that the long board 110 adsorbed by the two first vacuum adsorption parts 412 moves toward the short board 120 by the target length, so that the second joint surface 111 of the long board 110 is in contact with the first joint surface 121 of the short board 120.

[0112] The above control method ensures the stability, fit and welding accuracy of the short plate 120 and the long plate 110 by precisely controlling the operation of each component in the equipment.

[0113] Specifically:

[0114] Transfer and initial positioning of the short board 120 and long board 110. By controlling the bracket 420 of the clamping mechanism 40, the first vacuum suction member 412 suctions the long board 110, while the second vacuum suction member 430 suctions the short board 120. The bracket 420 is raised and lowered in a controlled manner, lifting the short board 120 and long board 110 from the pre-positioning table 30. The short board 120 and long board 110 are then precisely transferred to the loading plane 210 of the welding station 20 through a translational motion. The long board 110 and short board 120 are placed at the two first target positions 211 and the two second target positions 212 of the welding station 20, respectively.

[0115] It should be noted that it is necessary to ensure that the clamping mechanism 40 can firmly adsorb the short board 120 and the long board 110 to prevent displacement during the transfer process, and through the translation and lifting functions of the bracket 420, the short board 120 and the long board 110 can be placed in the target position without error.

[0116] Precisely secure the short plate 120. Activate the first magnetic attraction component inside the welding station 20 to generate a magnetic field at the first target position 211. Use magnetic attraction to confine the short plate 120 to the first target position 211, ensuring that the posture of the short plate 120 remains consistent with the reference plane of the welding equipment. Furthermore, the magnetic attraction of the first magnetic attraction component must be strong enough to overcome the gravity of the short plate 120 and other external forces. Ensure that the long side of the short plate 120 is perpendicular to the loading plane 210 of the welding station 20, providing a reference for subsequent splicing operations.

[0117] Movement and fitting of the long board 110. Start the first driver 411 and move the first driving end 4111 in a first direction (a direction perpendicular to the first mating surface 121 of the short board 120). The long board 110 adsorbed by the first vacuum adsorption component 412 moves along with the first driving end 4111, gradually approaching the short board 120. Until the second mating surface 111 of the long board 110 abuts the first mating surface 121 of the short board 120. Afterwards, the first driving end 4111 is controlled to move to a target length. Because the target length is greater than the preset length, the long board 110 continues to move along with the first moving end, causing the vacuum suction cup to passively undergo elastic deformation. At this time, the posture of the long board 110 will be adaptively adjusted under the cooperation of the over-limit movement and the elastic deformation of the first vacuum adsorption component 412, thereby absorbing slight errors to ensure that the second mating surface 111 of the long board 110 and the first mating surface 121 of the short board 120 fit as closely as possible.

[0118] It is important to note that the driving distance of the first actuator 411 must be precisely controlled to ensure that the moving distance is greater than the preset spacing but not excessive, so as to achieve seamless adhesion. The elastic deformation of the vacuum suction cup needs to be moderate to buffer errors while providing sufficient suction stability.

[0119] It is understandable that in the above process, the short board 120 and the long board 110 need to have good magnetism or be installed with additional magnetic fixtures to adapt to the magnetic attraction assembly, and the short board 120 and the long board 110 also need to have a good surface for adsorption.

[0120] This embodiment utilizes a bracket 420 and a vacuum suction element to absorb the short plate 120 and the long plate 110, and to control their lifting and translation. This effectively addresses the issue of positional offset between the long plate 110 and the short plate 120 during their transition from the pre-positioning platform 30 to the welding platform 20, thereby achieving the technical effect of high-precision transfer and precise placement of the short plate 120 and the long plate 110. Furthermore, the use of a first magnetic suction component to generate a magnetic field at the first target position 211 and magnetically secure the short plate 120 effectively addresses the issue of the short plate 120 being unstable on the welding platform 20 or being offset by external forces, thereby ensuring the stability of the short plate 120 and the reliability of the tailor-made welding benchmark.

[0121] Furthermore, since this embodiment adopts the characteristic that the vacuum suction cup can undergo elastic deformation when the long plate 110 and the short plate 120 are spliced ​​together, it effectively solves the problem of poor fitting caused by slight position errors during the welding process, thereby improving the splicing effect of the long plate 110 and the short plate 120.

[0122] In the above control method, the determination of the target length is an important factor in ensuring the final splicing effect of the long board 110 and the short board 120. The target length can be determined by the following steps:

[0123] First, the initial spacing needs to be determined.

[0124] Measure the diameters of the first and second positioning members 320 and 330 when they are positioning pins and record the values. This value is the basic parameter for the initial spacing between the long board 110 and the short board 120.

[0125] It is understandable that the reserved clearance required for taking and placing the panels can be increased when necessary, usually by 5 to 10 wires based on the diameter of the positioning pins.

[0126] Next, the elastic range of the first vacuum adsorption member 412 needs to be calculated.

[0127] The maximum elastic deformation capacity of the vacuum adsorption part can be obtained from the product parameters. For example, the maximum allowable elastic deformation of a vacuum adsorption part of a certain material is 5 mm.

[0128] Determine the safe range of elastic deformation. Based on safety requirements, limit the maximum elastic deformation to 80%. In other words, multiply the maximum deformation by 0.8 to calculate the elastic range.

[0129] Then, the target length is calculated comprehensively.

[0130] The initial distance is added to the safe elastic range of the first vacuum suction member 412 to obtain a preliminary target length.

[0131] Next, verify the rationality of the preliminary target length.

[0132] The joining state of the long plate 110 and the short plate 120 is simulated in an actual tailor-welding device to confirm whether the second joining surface 111 of the long plate 110 and the first joining surface 121 of the short plate 120 can be fitted together without any obvious gap when the first driving end 4111 moves the initial target length.

[0133] If the experimental verification shows that the splicing effect is not ideal, the initial spacing or the elastic range of the vacuum adsorption parts can be adjusted according to the actual situation, and the target length can be recalculated until the fitting requirements are met.

[0134] Finally, record the final target length.

[0135] The target length finally determined after verification is used as the reference value for equipment control.

[0136] Furthermore, in order to prevent the elastic deformation of the first vacuum adsorption component 412 from exceeding the elastic limit due to excessive movement of the first driving end 4111, in some embodiments, the welding equipment also includes a first sensor (not shown in the figure), which is arranged at the first driving end 4111 of the first driver 411 to detect the force state of the first driving end 4111 during the movement.

[0137] In the control method, the two first driving ends 4111 drive the two first vacuum adsorption members 412 to move relative to each other, so that the long board 110 adsorbed by the two first vacuum adsorption members 412 moves toward the short board 120 by the target length, so that the second joint surface 111 of the long board 110 is in contact with the first joint surface 121 of the short board 120, including the following steps:

[0138] The first driving ends 4111 of the two first adsorption components 410 are moved in opposite directions, and the moving distance of each first driving end 4111 is the target length;

[0139] Monitoring the change in the force state of the first driving end 4111 by the first sensor;

[0140] If the first sensor detects that the change in the force state of the first driving end 4111 is consistent with the change in the force state of the first driving end 4111 when the first vacuum adsorption member 412 and the long board 110 slide relative to each other, the first driving end 4111 stops moving;

[0141] If the first sensor detects that the change in the force state of the first driving end 4111 is different from the change in the force state of the first driving end 4111 when the first vacuum adsorption component 412 and the long plate 110 slide relative to each other, the first vacuum adsorption component 412 is released from the adsorption of the long plate 110 through the vacuum generator, and the first driving end 4111 stops moving.

[0142] Specifically, the first sensor is located at the first driving end 4111 of the first actuator 411. It detects in real time the force applied by the first driving end 4111 as it drives the first vacuum element 412 to move the long board 110, and provides a feedback signal. Furthermore, by monitoring the force applied, the relative slip point between the first vacuum element 412 and the long board 110 is determined, preventing the elastic deformation from exceeding a safe range.

[0143] The first drive end 4111 is the moving component of the first actuator 411, directly driving the first suction assembly 410 in a first direction toward the short plate 120. This drives the first vacuum suction member 412 and the long plate 110 toward the short plate 120, ultimately completing the splicing process. The first vacuum suction member 412 adheres to the long plate 110 through vacuum suction and provides elastic deformation during the splicing process to absorb errors and ensure welding accuracy. The elastic deformation must not exceed its elastic limit to avoid damage to the suction assembly or reduced welding accuracy.

[0144] The specific control methods are as follows:

[0145] Initial movement of the long board 110. The first actuators 411 in the two first adsorption assemblies 410 are activated, causing their first drive ends 4111 to move relative to each other in a first direction. The long board 110, held by the first vacuum adsorption component 412, begins to approach the short board 120. The first drive ends 4111 continue to move until the second mating surface 111 of the long board 110 and the first mating surface 121 of the short board 120 come into contact, i.e., the ends of the long board 110 and the short board 120 on both sides abut.

[0146] Initial Fitting and Deformation. After the long board 110 and the short board 120 come into contact, the two first drive ends 4111 continue to be controlled to slowly move in relative directions. As the drive ends move, the first vacuum suction member 412 begins to elastically deform, ensuring that the mating surfaces of the long board 110 and the short board 120 gradually fit together. The first sensor monitors the changes in force on the first drive end 4111 in real time, recording the force applied to the vacuum cups due to the elastic deformation.

[0147] Slippage trigger point detection: When the movement distance of the first driving end 4111 reaches near the target length, the elastic deformation of the first vacuum suction member 412 should begin to approach 80% of the elastic limit.

[0148] At this time, the first sensor monitors the stress state of the driving end in real time to determine whether it has reached the critical stress point at which the vacuum adsorption member and the long plate 110 slip relative to each other.

[0149] If the force change detected by the first sensor is consistent with the force characteristics when the vacuum adsorption member slips, the system determines that the long board 110 and the short board 120 are completely joined.

[0150] If the moving distance of the first driving end 4111 reaches the upper limit of the target length, and the first sensor detects that the force change state of the first driving end 4111 does not meet the force change state at the slip trigger point, the movement of the two first driving ends 4111 is stopped immediately or the first vacuum adsorption component 412 and the long plate 110 are caused to slide relative to each other by controlling the vacuum degree, so as to avoid the elastic deformation of the vacuum suction cup exceeding the limit due to excessive movement.

[0151] After stopping, the second joint surface 111 of the long plate 110 and the first joint surface 121 of the short plate 120 are in a completely fitted state, providing a high-precision joint foundation for subsequent welding operations.

[0152] The specific working principle is as follows:

[0153] The first sensor determines the relative slip point between the first vacuum member 412 and the long board 110 in real time based on the change in the force state of the first driving end 4111 during movement. When the change in the force state meets the slip trigger characteristic, the system automatically stops the movement of the first driving end 4111.

[0154] The judgment basis of the slip point refers to the critical point when the adsorption force of the first vacuum adsorption member 412 can no longer maintain the position of the long board 110. At this time, the force on the driving end will suddenly change, and the first sensor can accurately capture this change.

[0155] Limitation of elastic deformation: The system ensures that the elastic deformation of the first vacuum adsorption member 412 is always less than its elastic limit (usually set to 80% of the limit) through the feedback information detected by the first sensor, so as to avoid damage to the adsorption component.

[0156] The key aspects of the control method include:

[0157] Move gradually, controlling the first driving end 4111 to move slowly and accurately to avoid deformation beyond the control range due to excessively fast movement.

[0158] Real-time detection: the first sensor monitors the stress state throughout the entire process to ensure that the long plate 110 will not be offset or welded unsuccessfully due to excessive or uneven stress during movement.

[0159] Vacuum degree control: when the deformation of the first vacuum adsorption component 412 reaches 80% of the deformation limit, if you want to make the first vacuum adsorption component 412 and the long plate 110 slide relative to each other, the vacuum degree needs to be reasonably set, and the vacuum degree can be obtained through repeated tests.

[0160] In this embodiment, since the technical means of using the first sensor to monitor the stress state of the first driving end 4111 is adopted, the problem of damage to the adsorption component caused by the excessive elastic deformation of the first vacuum adsorption part 412 is effectively solved, thereby achieving high-precision control of the welding process of the long plate 110 and the short plate 120.

[0161] To prevent the edges of the second joining surface 111 of the long plate 110 from partially overlapping after the second joining surface 111 of the long plate 110 and the first joining surface 121 of the short plate 120 abut against each other due to the height difference between the side surfaces of the second joining surface 111 of the long plate 110 and the side surfaces of the first joining surface 121 of the short plate 120, in some embodiments, the welding equipment further includes a second sensor (not shown) disposed at the first adsorption assembly 410 to detect the pressure value exerted by the first adsorption assembly 410 after the long plate 110 is moved to the loading plane 210. The control method includes:

[0162] Before the first driving ends 4111 of the two first adsorption components 410 are moved in opposite directions, the bracket 420 is controlled to move downward so that both the long plate 110 and the short plate 120 are in contact with the material loading surface 210 until the real-time pressure value measured by the second sensor is greater than the preset pressure value. The method specifically includes the following steps:

[0163] By controlling the movement of the bracket 420 , the two first adsorption assemblies 410 and the two second adsorption assemblies are moved to directly above the two second pre-positioning areas and the two first pre-positioning areas respectively.

[0164] The support 420 is controlled to move downward, so that each first adsorption assembly 410 and each second adsorption assembly abut against and adsorb each long plate 110 and each short plate 120 respectively.

[0165] The support 420 is controlled to move upward, so that the long plate 110 and the short plate 120 are separated from the pre-positioning platform 30 .

[0166] The support 420 is controlled to move to the welding station 20 , and the two long plates 110 and the two short plates 120 are respectively located directly above the two second target positions 212 and the two first target positions 211 .

[0167] The support 420 is controlled to move downward, so that each long plate 110 and each short plate 120 abuts against the material placement plane 210 until the pressure value measured by the second sensor is greater than the preset pressure value.

[0168] When the pressure of the second sensor is greater than the preset pressure value, it indicates that the side of the long plate 110 facing the welding table 20 is completely in contact with the material placement plane 210 .

[0169] Afterwards, after the side of the long board 110 facing the welding station 20 is completely aligned with the loading plane 210 , a subsequent joining step can be performed to move the second joining surface 111 of the long board 110 toward the first joining surface 121 of the short board 120 .

[0170] Specifically, to address the issue of partial edge overlap between the long board 110 and the short board 120 due to height differences when they are joined, the present invention introduces a second sensor to detect the fit of the long board 110 on the loading surface 210 and uses the pressure value as a feedback signal to ensure that the long board 110 and the short board 120 are joined accurately. The specific control method is as follows:

[0171] The support 420 is lowered and the pressure is monitored.

[0172] The control bracket 420 gradually moves downward, placing the long board 110 and the short board 120 on the loading surface 210 of the welding station 20. A second sensor (mounted on the first adsorption assembly 410) monitors the pressure changes on the first adsorption assembly 410 in real time. As the long board 110 gradually contacts the loading surface 210, the pressure value begins to increase.

[0173] When the second sensor detects a pressure greater than a preset pressure value, it indicates that the bottom surface of the long board 110 facing the welding station 20 is fully aligned with the material loading surface 210. If the long board 110 is not fully aligned, the bracket 420 continues to move downward to ensure that the overall surface of the long board 110 is fully aligned with the material loading surface 210.

[0174] Stop the movement of the bracket 420. Once the pressure value exceeds the preset pressure value, the system automatically stops the bracket 420 from descending to avoid component damage or error caused by excessive downward movement.

[0175] In this embodiment, pressure is used as a basis for determining contact. The second sensor monitors the pressure changes on the first adsorption assembly 410 as the support 420 descends, determining in real time whether the elongated plate 110 is in complete contact with the loading surface 210. When the pressure exceeds a preset value, it indicates that the bottom surface of the elongated plate 110 is in seamless contact with the loading surface 210 of the soldering station 20.

[0176] The preset pressure value can be obtained through repeated tests to ensure that the long board 110 will not be deformed due to excessive pressure during lamination.

[0177] It should be noted that the joining step is only started after the long board 110 is completely aligned with the loading plane 210 , to avoid problems such as overlapping edges of the panels or poor alignment caused by the long board 110 not being aligned with the loading plane 210 .

[0178] Furthermore, the second sensor continuously monitors the change in pressure value, provides real-time feedback during the splicing process of the long board 110 and the short board 120, and dynamically adjusts the operation of the bracket 420 and the driving mechanism to ensure the splicing accuracy.

[0179] In this embodiment, firstly, due to the technical means of using a second sensor to detect the pressure value, the problem of insufficient splicing accuracy caused by the long plate 110 and the material placement plane 210 not being fully fitted together is effectively solved, thereby achieving a high-precision splicing effect of the long plate 110 and the short plate 120. Secondly, by controlling the descending action of the bracket 420 through pressure value feedback, the problem of partial overlap of the edges of the splicing surfaces due to height difference is effectively solved, thereby achieving a seamless fitting effect of the welding operation. Furthermore, the real-time feedback function of the second sensor ensures that the splicing pressure is dynamically adjusted during the splicing process to adapt to the fitting requirements of different panels, significantly improving the adaptability and flexibility of the equipment. Furthermore, the determination of the splicing state is automatically controlled by the pressure value without the need for manual intervention, which greatly improves production efficiency and welding quality.

[0180] In summary, by adding a second sensor to detect the pressure of the long plate 110 on the loading surface 210, the present invention can accurately determine the alignment of the long plates 110. Combined with a dynamic adjustment mechanism, this method effectively avoids local overlap caused by height differences during the welding process, significantly improving both assembly accuracy and weld quality. This method is applicable to welding scenarios involving a variety of frame structures, providing strong technical support for efficient and high-precision production.

[0181] The above contents described in this specification are merely examples of the present invention. Those skilled in the art may make various modifications, additions, or substitutions to the described embodiments, without departing from the contents of this specification or exceeding the scope defined by the claims, and such modifications, additions, or substitutions may be made to the described embodiments. Such modifications, additions, or substitutions may be made by persons skilled in the art. Such modifications, additions, or substitutions may be made to the described embodiments without departing from the contents of this specification or exceeding the scope defined by the claims, and such modifications shall fall within the scope of protection of the present invention.

Claims

1. A welding device, comprising a welding mechanism, for welding the joint seams of a car sunroof assembly, wherein: The automobile sunroof assembly includes two long plates and two short plates, and is characterized in that the tailor-welding equipment further includes: A soldering station, comprising a loading plane, the loading plane comprising two first target positions and two second target positions, the two first target positions being used to place two short boards, and the short boards at the two first target positions are parallel and their ends are flush, the ends of the short boards being first joint surfaces, the two second target positions being used to place two long boards, the long boards at the two second target positions are parallel and respectively located on both sides of the short boards, the sides of the two long boards facing each other being second joint surfaces, and the long side direction of the long board at the second target position is perpendicular to the long side direction of the short board at the first target position, the first target position and the second target position being configured such that when the short board and the long board are respectively at the first target position and the second target position, a preset distance is left between the first joint surface and the second joint surface; a first magnetic attraction component, disposed in the soldering station, wherein the first magnetic attraction component is controlled to generate a magnetic field at the first target position so as to apply a magnetic attraction force to the short plate at the first target position when in a working state; Clamping mechanism, comprising: Two first adsorption components are controlled to move relative to each other or move away from each other, and the movement direction of the two first adsorption components is defined as a first direction. The first adsorption components include: a first driver, comprising a first driving end, wherein the first driving end is controlled to move along the first direction, and the moving direction of the first driving end is parallel to the long side direction of the short plate located at the first target position; a first vacuum adsorption member, which is controlled to be adsorbed on the long board, the first vacuum adsorption member being connected to the first driving end so as to move with the first driving end, and the first vacuum adsorption member being configured to elastically deform when the first joint surface of the long board abuts against the second joint surface of the short board; a vacuum generator, the vacuum generator operates in a controlled manner and is connected to the first vacuum adsorption member to adjust the vacuum degree of the first vacuum adsorption member; The bracket is controlled to rise and fall and translate, and the first adsorption component is connected to the bracket to move with the bracket; a first sensor, disposed at the first driving end of the first actuator, to detect a force state of the first driving end during a controlled movement process; a second sensor, provided at the first adsorption assembly, to detect a pressure value exerted on the first vacuum adsorption component during the process of joining the second joining surface of the long board and the first joining surface of the short board; a controller connected to the clamping mechanism, the first sensor, and the second sensor, wherein the controller adjusts the vacuum degree of the first vacuum adsorption member according to data collected by the first sensor to control the connection state of the first vacuum adsorption member and the long board; and controls the raising and lowering of the bracket according to the data collected by the second sensor to control the downward pressure applied by the bracket to the long board toward the welding table; Wherein, when the tailor-welding equipment is in working state, the first magnetic attraction component applies a magnetic attraction force to the short plate at the first target position to confine the short plate at the first target position, and the first vacuum adsorption component, driven by the first driving end, drives the long plate located at the second target position and being adsorbed to move toward the short plate located near the second target position, and the moving distance of the first driving end is the target length, and the target length is greater than the preset distance, so that the second joint surface of the long plate is aligned with the first joint surface of the short plate located at the first target position; The controller adjusts the vacuum degree of the first vacuum adsorption member according to the data collected by the first sensor to control the connection state of the first vacuum adsorption member and the long board. This step includes: The controller determines whether the first vacuum adsorption member has reached a critical point of relative slippage with the long board based on the change in the force state collected by the first sensor; If the critical point is reached, the movement of the first driving end is stopped and the current vacuum degree is maintained; If the critical point is not reached and the moving distance of the first driving end has reached the target length, the vacuum generator is controlled to reduce the vacuum degree of the first vacuum adsorption member to release the adsorption, and the driving end is controlled to stop moving.

2. The tailor welding equipment according to claim 1, characterized in that: Also includes: A pre-positioning platform, comprising a positioning plane, further comprising: a plurality of first positioning members disposed on the positioning plane, wherein the plurality of first positioning members enclose two first pre-positioning areas on the positioning plane, wherein the shape and size of the first pre-positioning areas are the same as the shape and size of the short boards, and the first pre-positioning areas are configured such that when two short boards are respectively placed in the two first pre-positioning areas, the two short boards are arranged in parallel, and the first joint surfaces of the two short boards are flush; A plurality of second positioning members are arranged at the positioning plane, and the plurality of second positioning members enclose two second pre-positioning areas at the positioning plane. The shape and size of the second pre-positioning areas are the same as the shape and size of the long plates, and the second pre-positioning areas are configured so that when the two long plates are respectively placed in the two second pre-positioning areas, the two long plates are arranged in parallel, and the distance between the second splicing surface of the long plate and the first splicing surface of the short plate placed in the first pre-positioning area is the preset distance.

3. The tailor-made welding equipment according to claim 1, characterized in that: The clamping mechanism further comprises: The bracket is controlled to rise and fall and translate, and the first adsorption component is connected to the bracket to move with the bracket; The second vacuum adsorption member is controlled to be adsorbed on the short plate, and the second vacuum adsorption member is connected to the bracket to move with the bracket.

4. The tailor-made welding equipment according to claim 1, characterized in that: Also includes: The second magnetic attraction component is arranged in the welding table. The second magnetic attraction component generates a magnetic field in a controlled manner to apply a magnetic attraction force to the long plate after the second joint surface of the long plate is attached to the first joint surface of the short plate, so as to limit the movement of the long plate.

5. The tailor welding equipment according to claim 1, characterized in that: The first vacuum adsorption component is a vacuum suction cup, and the vacuum suction cup is configured to be elastically deformed when the second joint surface of the long board abuts against the first joint surface of the short board.

6. The tailor welding equipment according to claim 1, characterized in that: The first adsorption component further includes: The vacuum generator operates in a controlled manner and is connected to the first vacuum adsorption member to adjust the vacuum degree of the first vacuum adsorption member.

7. The tailor welding equipment according to claim 1, characterized in that: The first adsorption assembly further includes a vacuum generator, which operates in a controlled manner and is connected to the first vacuum adsorption member to adjust the vacuum degree of the first vacuum adsorption member; The clamping mechanism further comprises: a second vacuum adsorption member, which is controlled to be adsorbed on the short plate, and the second vacuum adsorption member is connected to the bracket to move with the bracket; The tailor welding equipment further comprises: A pre-positioning platform, comprising a positioning plane, further comprising: a plurality of first positioning members disposed on the positioning plane, wherein the plurality of first positioning members enclose two first pre-positioning areas on the positioning plane, wherein the shape and size of the first pre-positioning areas are the same as the shape and size of the short boards, and the first pre-positioning areas are configured such that when two short boards are respectively placed in the two first pre-positioning areas, the two short boards are arranged in parallel, and the first joint surfaces of the two short boards are flush; a plurality of second positioning members disposed on the positioning plane, the plurality of second positioning members enclosing two second pre-positioning areas on the positioning plane, the second pre-positioning areas having the same shape and size as the long boards, and the second pre-positioning areas being configured such that when two long boards are respectively placed in the two second pre-positioning areas, the two long boards are arranged in parallel, and a distance between a second joint surface of the long board and a first joint surface of the short board placed in the first pre-positioning area is the preset distance; a second magnetic attraction component disposed in the soldering station, the second magnetic attraction component generating a magnetic field in a controlled manner to apply a magnetic attraction force to the long board after the second joint surface of the long board is joined to the first joint surface of the short board, thereby restricting movement of the long board; The controller is connected to the soldering station, the first magnetic component and the second magnetic component to control the operation of the soldering station, the first magnetic component, the second magnetic component and the clamping mechanism.

8. A control method for tailor-made welding equipment according to claim 7, characterized in that: include: The short plates placed at the two first pre-positioning areas and the long plates placed at the two second pre-positioning areas are respectively moved to the two first target positions and the two second target positions of the loading plane by the clamping mechanism; Generate a magnetic field at the two first target positions by using the two first magnetic attraction components to respectively adsorb the two short plates at the two first target positions; The two first driving ends drive the two first vacuum adsorption parts to move relative to each other, so that the long board adsorbed by the two first vacuum adsorption parts moves toward the short board by the target length, so that the second joint surface of the long board is in contact with the first joint surface of the short board.

9. The control method of tailor-made welding equipment according to claim 8, characterized in that: In the control method, the two first driving ends drive the two first vacuum adsorption members to move relative to each other, so that the long board adsorbed by the two first vacuum adsorption members moves toward the short board by the target length, so that the second joint surface of the long board is in contact with the first joint surface of the short board, including the following steps: Move the first driving ends of the two first adsorption components in opposite directions, and the moving distance of each first driving end is the target length; monitoring a change in a force state of the first driving end by using the first sensor; If the first sensor detects that the change in the force state of the first driving end is consistent with the change in the force state of the first driving end when the first vacuum adsorption member and the long board slide relative to each other, the first driving end is stopped from moving; If the first sensor detects that the change in the force state of the first driving end is different from the change in the force state of the first driving end when the first vacuum adsorption component and the long board slide relative to each other, the vacuum generator is used to release the first vacuum adsorption component from the long board and stop the first driving end from moving.

10. The control method of tailor-made welding equipment according to claim 9, characterized in that: The control method further includes: Before moving the first driving ends of the two first adsorption components in relative directions, the bracket is controlled to move downward so that both the long plate and the short plate abut against the material placement plane until the pressure value measured by the second sensor is greater than a preset pressure value.

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