Welding equipment for FIX assembly shell

Abstract

The invention discloses welding equipment for an FIX assembly shell, relates to the technical field of welding equipment, and aims to solve the technical problems that when current welding equipment is used for welding the FIX assembly shell with a curved surface, weld joints are misplaced, and pseudo soldering and solder skips are prone to occurring. The deformable hot plate structure is switched between a straight plate and an arc plate, when the arc edge of the shell is processed, the linear driving structure fixes one end of the heat conduction foil and cooperates with the deformation layer to shrink to generate stress, the bending limiting structure restrains the moving track of the other end of the heat conduction foil, and the heat conduction foil is bent into the preset radian and attached to the curved surface of the shell for hot plate welding; when the straight edge is processed, the deformation layer restores to the initial state, the linear driving structure drives one end of the heat conduction foil to rotate to the horizontal position, and plane welding is achieved. Through a dual-mode deformation system, continuous welding of the straight edge and the arc edge of the shell can be completed without replacing a tool, so that the shell is effectively welded, and the conditions of insufficient welding and welding skips are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and more specifically, to a welding equipment for a FIX component housing. Background Art

[0002] ISOFIX is a set of standards for automotive child safety seat fixing devices formulated by the International Organization for Standardization (ISO). Its purpose is to ensure that child safety seats can be correctly, quickly, and firmly installed in a vehicle, improving the safety of children riding in the vehicle. By tightly connecting the ISOFIX interface of the child safety seat to the fixing points on the vehicle seat, a rigid connection structure is formed. This connection method can effectively fix the child safety seat on the vehicle during a vehicle collision or sudden braking, reducing the displacement and shaking of the seat, thereby maximizing the protection of the child's safety. At the same time, the top restraint belt can further limit the rotation and tilting of the seat when enabled, providing more comprehensive protection. The bottom of the ISOFIX component is provided with a housing structure for fixing ISOFIX, and for the housing structure, welding needs to be carried out by welding equipment.

[0003] However, existing welding equipment often uses fixed molds for welding. When welding arc-edge structures, it is difficult to dynamically adjust the shape of the hot plate. For FIX component housings with curved surfaces, most are welded by multi-segment straight-line splicing, and there is a certain degree of misalignment in the welds, which easily leads to the occurrence of false welding and missed welding. In view of this, we propose a welding equipment for a FIX component housing. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, adapt to the actual needs, and provide a welding equipment for a FIX component housing to solve the technical problems that when the current welding equipment welds a FIX component housing with a curved surface, there is misalignment in the welds and false welding and missed welding are likely to occur.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A welding equipment for a FIX component housing, including a welding table and two welding parts provided on the welding table;

[0006] The two welding parts are respectively used for welding the upper shell and the lower shell of the FIX component housing. The welding part includes welding modules located on both sides of the upper shell or the lower shell. The welding module includes a deformable hot plate structure and a deformation structure;

[0007] The deformable hot plate structure has a straight plate state and an arc plate state; the deformation structure has a bent state and a straight state, and includes a bending limit structure and a linear drive structure; in the bent state, the linear drive structure fixes one end of the deformable hot plate structure, and the bending limit structure restricts the movement range of the other end of the deformable hot plate structure, so that the deformable hot plate structure is deformed into an arc plate structure with a specific radian for hot plate welding of the arc edges of the upper shell or the lower shell; in the straight state, the linear drive structure drives one end of the deformable hot plate structure to move, and the bending limit structure assists the movement of the other end of the deformable hot plate structure, and the deformable hot plate structure is deformed into a straight plate structure parallel to the welding table for hot plate welding of the straight edges of the upper shell or the lower shell.

[0008] Preferably, the deformable hot plate structure includes a heat-conducting foil, a heating wire, and a deformation layer. The heat-conducting foil and the deformation layer are bonded together, and the heating wire is arranged in the heat-conducting foil along the long axis direction of the heat-conducting foil. The deformation layer is used to drive the heat-conducting foil to deform between the straight plate structure and the arc plate structure, and the heat-conducting foils on the two welding parts are respectively adapted to the upper shell and the lower shell;

[0009] An energizing device is connected to the deformation layer. The deformation layer is divided into a starting part and a resetting part, and both the starting part and the resetting part are independently arranged shape memory alloys, and the surface of the shape memory alloy is coated with a flexible heat-insulating material. The starting part and the resetting part are respectively changed into the original arc plate state and the original straight plate state after being energized.

[0010] Preferably, an installation soft board is attached to one side of the deformation layer, and a plurality of air cylinders are equidistantly installed on the installation soft board. The output ends of the plurality of air cylinders are all connected to the heat-conducting foil, and the output ends of the air cylinders are located at the gap between the starting part and the resetting part.

[0011] Preferably, connection seats are installed at the top and bottom of the heat-conducting foil, and mounting seats are rotatably connected to the connection seats. The two mounting seats are respectively arranged on the bending limit structure and the linear drive structure.

[0012] Preferably, a plurality of bending grooves are equidistantly formed in the long axis direction on the side of the heat-conducting foil close to the deformation layer, and the bending grooves are trapezoidal structures, and the cross-sectional opening of the bending grooves gradually increases in the direction facing the outside of the heat-conducting foil.

[0013] Preferably, the bending limit structure includes a first limit slider, a first transverse guide rod, a second limit slider, and a longitudinal guide rod;

[0014] The first limiting slider is connected to the mounting seat at the bottom end of the heat-conducting foil. The first limiting slider is horizontally slidably connected to the first horizontal guide rod. The second limiting slider is slidably connected to the first horizontal guide rod, and the second limiting slider is vertically slidably connected to the vertical guide rod. The first horizontal guide rod and the second limiting slider form a horizontal limiting structure, and the second limiting slider and the vertical guide rod form a vertical limiting structure.

[0015] Preferably, the bending limiting structure further includes a fixed seat, a slide rail, a horizontal limiting bolt, and a vertical limiting bolt;

[0016] The fixed seat is slidably connected to the vertical guide rod. The fixed seat is slidably connected to the slide rail. The horizontal limiting bolt and the vertical limiting bolt are both installed on the fixed seat. The horizontal limiting bolt is used to limit the horizontal movement of the fixed seat on the slide rail, and the vertical limiting bolt is used to limit the vertical movement of the vertical guide rod on the fixed seat.

[0017] Preferably, the linear deformation limiting structure includes a rack, a gear, a servo motor, and a limiting housing;

[0018] The rack is connected to the mounting seat at the top end of the heat-conducting foil. The gear is meshed and connected to one side of the rack. The gear is installed at the output end of the servo motor. The servo motor is installed on the limiting housing. The gear is arranged inside the limiting housing, and the rack is slidably connected to the limiting housing.

[0019] Preferably, the linear deformation limiting structure further includes a third limiting slider and a second horizontal guide rod;

[0020] The third limiting slider is installed on the limiting housing. The third limiting slider is slidably connected to the second horizontal guide rod. The second horizontal guide rod is connected to the slide rail.

[0021] Preferably, a handling structure is further installed on the welding table. The handling structure is used to handle the FIX component housing. The handling structure includes a linear driving device, a robotic arm, and a vacuum chuck;

[0022] The two linear driving devices are respectively installed on both sides of the welding table. The robotic arm is installed at the output end of the linear driving device. The vacuum chuck is installed at the mobile end of the robotic arm.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. The present invention adopts the collaborative design of the deformable hot plate structure and the deformable structure. The deformable hot plate structure can switch between the straight plate and the arc plate according to the welding requirements. When processing the arc edge of the shell, the linear drive structure fixes one end of the heat-conducting foil, cooperates with the deformation layer to shrink to generate stress, and the bending limit structure constrains the movement trajectory of the other end of the heat-conducting foil, so that the heat-conducting foil is bent into a preset arc and fits the shell surface for hot plate welding; when processing the straight edge, the deformation layer returns to the initial state, and the linear drive structure drives one end of the heat-conducting foil to rotate to a horizontal position to achieve plane welding. The present invention uses a dual-mode deformation system to complete the continuous welding of the straight edge and the arc edge of the shell without changing the tooling, thereby effectively welding the shell and avoiding false welding and leaking welding.

[0025] 2. The present invention uses an auxiliary deformation system composed of cylinders. After the deformable hot plate structure is deformed, the cylinder pushes the heat-conducting foil in front of the deformation layer through the output end, so that the heat-conducting foil is deformed. Then, the cylinder causes a micro displacement of the heat-conducting foil locally, so that the heat-conducting foil part structure is convex or contracted, thereby dynamically compensating for the thermal deformation of the heat-conducting foil during welding and improving the consistency of weld penetration. The present invention sets a cylinder to make the heat-conducting foil complete local deformation, thereby realizing local fine adjustment of welding and improving the welding qualification rate.

[0026] 3. The present invention provides bending grooves on the side of the heat conductive foil close to the deformation layer, and the bending grooves are evenly spaced along the long axis of the heat conductive foil, and the cross section is a trapezoidal structure, so that the heat conductive foil can generate stress concentration points when deformed, and guide the heat conductive foil to bend along a preset trajectory.

[0027] When the shape memory alloy activation part is energized and contracts, the bending groove weakens the local stiffness of the thermal conductive foil, allowing the thermal conductive foil to complete the preset arc deformation in a shorter time. With the local push of the micro cylinder, the bending groove can produce additional elastic deformation to accurately compensate for the curved surface tolerance of the weldment. The present invention guides the thermal conductive foil to bend along a preset trajectory during deformation through the bending groove, while increasing the speed at which the thermal conductive foil completes the arc deformation.

[0028] 4. The present invention forms a two-dimensional adjustment system through the transverse limit bolt and the longitudinal limit bolt. When it is necessary to weld shells with different curvatures, first loosen the longitudinal limit bolt to move the longitudinal guide rod to the target height, then loosen the transverse limit bolt, adjust the transverse position of the fixing seat on the slide rail, and then tighten the longitudinal limit bolt and the transverse limit bolt to form a rigid limit. The present invention adjusts the longitudinal position of the longitudinal guide rod and the transverse position of the fixing seat through the longitudinal limit bolt and the transverse limit bolt, thereby adjusting the limit range of the bending limit structure and controlling the deformation curvature of the deformable hot plate structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the present invention;

[0030] Figure 2 Structural schematic diagram of the deformable hot plate structure and the deformation structure of the present invention;

[0031] Figure 3 Structural schematic diagram of the deformable hot plate structure of the present invention;

[0032] Figure 4 Explosion schematic diagram of one end of the deformable hot plate structure of the present invention;

[0033] Figure 5 Structural schematic diagram of the bending limit structure of the present invention;

[0034] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of part A in the present invention;

[0035] Figure 7 Front view structural schematic diagram of the linear drive structure of the present invention;

[0036] Figure 8 Rear view structural schematic diagram of the linear drive structure of the present invention;

[0037] Figure 9 Structural schematic diagram of the deformable hot plate structure of the present invention deformed into a bent state;

[0038] Figure 10 Structural schematic diagram of the deformable hot plate structure of the present invention deformed into a flat state;

[0039] Figure 11 Structural schematic diagram of the deformable hot plate structure of the present invention deformed into a bent state when in the maximum limit range;

[0040] Figure 12 Structural schematic diagram of an embodiment of the FIX component for welding processing of the present invention.

[0041] Explanation of the reference numerals in the figure:

[0042] 1. Welding table; 2. Deformable hot plate structure; 3. Deformation structure; 4. Handling structure;

[0043] 201. Heat-conducting foil; 202. Heating wire; 203. Deformation layer; 204. Electrifying device; 205. Mounting flexible board; 206. Cylinder; 207. Connecting seat; 208. Mounting seat;

[0044] 2011. Bending groove;

[0045] 301. Bending limit structure; 302. Linear drive structure; 303. Fixed seat; 304. Slide rail; 305. Transverse limit bolt; 306. Longitudinal limit bolt;

[0046] 3011. First limit slider; 3012. First horizontal guide rod; 3013. Second limit slider; 3014. Vertical guide rod;

[0047] 3021. Rack; 3022. Gear; 3023. Servo motor; 3024. Limit housing; 3025. Third limit slider; 3026. Second horizontal guide rod;

[0048] 401. Linear drive device; 402. Robot arm; 403. Vacuum suction cup. Detailed implementation mode

[0049] Example 1, as Figures 1 to 11 shown, a welding device for a FIX component housing according to the present invention includes two welding parts provided on a welding table 1, and the two welding parts are respectively used for welding the upper shell and the lower shell of the FIX component housing;

[0050] The welding part includes welding modules located on both sides of the upper shell or the lower shell, and the welding module includes a deformable hot plate structure 2 and a deformation structure 3;

[0051] The deformable hot plate structure 2 includes a heat-conducting foil 201, a heating wire 202 and a deformation layer 203. The heat-conducting foil 201 and the deformation layer 203 are bonded together, and the heating wire 202 is arranged in the heat-conducting foil 201 along the long axis direction of the heat-conducting foil 201. The deformation layer 203 has a straight plate state and an arc plate state, and is used to drive the heat-conducting foil 201 to deform between the straight plate structure and the arc plate structure. The orientations of the deformable hot plate structures 2 on the two welding parts are respectively adapted to the upper shell and the lower shell;

[0052] The deformation structure 3 has a bent state and a straight state, and includes a bending limit structure 301 and a linear drive structure 302; in the bent state, the linear drive structure 302 fixes one end of the heat-conducting foil 201, and the bending limit structure 301 restricts the movement range of the other end of the heat-conducting foil 201. The deformation layer 203 deforms the heat-conducting foil 201 into an arc plate structure with a specific required radian for hot plate welding of the arc edge of the upper shell or the lower shell; in the straight state, the linear drive structure 302 drives one end of the heat-conducting foil 201 to move, and the bending limit structure 301 assists the movement of the other end of the heat-conducting foil 201. The deformation layer 203 deforms the heat-conducting foil 201 into a straight plate structure parallel to the welding table 1 for hot plate welding of the straight edge of the upper shell or the lower shell;

[0053] A handling structure 4 is also installed on the welding table 1, and the handling structure 4 is used to handle the FIX component housing.

[0054] Through the collaborative design of the deformable hot plate structure 2 and the deformation structure 3, the deformable hot plate structure 2 can switch between the straight plate and arc plate forms according to welding requirements. When processing the arc edge of the shell, the linear drive structure 302 fixes one end of the heat-conducting foil 201, and cooperates with the contraction of the deformation layer 203 to generate stress. The bending limit structure 301 restricts the movement trajectory of the other end of the heat-conducting foil 201, so that the heat-conducting foil 201 is bent into a preset arc to fit the curved surface of the shell for hot plate welding. When processing the straight edge, the deformation layer 203 returns to its initial state, and the linear drive structure drives one end of the heat-conducting foil 201 to rotate to the horizontal position to achieve planar welding. Through the dual-mode deformation system, the present invention can complete the continuous welding of the straight edge and arc edge of the shell without replacing the tooling, thereby effectively welding the shell and avoiding the situations of false welding and missed welding.

[0055] Specifically, as Figure 4 shown, an energizing device 204 is connected to the deformation layer 203 involved in the present invention. The deformation layer 203 is divided into a starting part and a reset part, and both the starting part and the reset part are independently arranged shape memory alloys, and the surface of the shape memory alloy is coated with a flexible heat insulation material. After being energized, the starting part and the reset part respectively become the original arc plate state and the original straight plate state.

[0056] Through the innovative design of the dual-drive deformation layer 203, the precise control of the hot plate form is realized. The deformation layer 203 is composed of an independently controlled starting part and a reset part, both of which adopt nickel-titanium shape memory alloy NiTi SMA. When it is necessary to change to the arc plate state, the starting part generates resistive heat after being energized. When the temperature reaches the austenite transformation point of 65°C, the molecular structure of the memory alloy is reorganized, driving the heat-conducting foil 201 to be bent into a preset arc plate state, and at the same time, the reset part is not energized and becomes the low-temperature martensite that deforms with the starting part.

[0057] When it is necessary to change to the straight plate state, the reset part generates resistive heat after being energized. When the temperature reaches the austenite transformation point of 65°C, the molecular structure of the memory alloy is reorganized, driving the heat-conducting foil 201 to become a preset straight plate state, and at the same time, the starting part is not energized and becomes the low-temperature martensite that deforms with the reset part.

[0058] The two groups of memory alloys work independently without interference. After fatigue testing, the deformation layer 203 still maintains a quite high shape recovery rate, and the service life is improved compared with the traditional spring drive. The design of the present invention shortens the switching time of the hot plate form and reduces the welding energy consumption, and is especially suitable for the precision manufacturing scenarios that require frequent switching of the welding form.

[0059] It is worth noting that, as Figures 5 to 8As shown in the figure, the bending limit structure 301 involved in the present invention includes a first limit slider 3011, a first horizontal guide rod 3012, a second limit slider 3013, and a vertical guide rod 3014; the first limit slider 3011 is connected to the mounting seat 208 at the bottom end of the heat-conducting foil 201, the first limit slider 3011 is horizontally slidably connected to the first horizontal guide rod 3012, the second limit slider 3013 is slidably connected to the first horizontal guide rod 3012, and the second limit slider 3013 is vertically slidably connected to the vertical guide rod 3014. The first horizontal guide rod 3012 and the second limit slider 3013 form a horizontal limit structure, and the second limit slider 3013 and the vertical guide rod 3014 form a vertical limit structure.

[0060] The linear deformation limit structure includes a rack 3021, a gear 3022, a servo motor 3023, and a limit housing 3024; the rack 3021 is connected to the mounting seat 208 at the top end of the heat-conducting foil 201, the gear 3022 is meshed and connected to one side of the rack 3021, the gear 3022 is installed at the output end of the servo motor 3023, the servo motor 3023 is installed on the limit housing 3024, the gear 3022 is arranged inside the limit housing 3024, and the rack 3021 is slidably connected to the limit housing 3024.

[0061] The linear deformation limit structure further includes a third limit slider 3025 and a second horizontal guide rod 3026; the third limit slider 3025 is installed on the limit housing 3024, the third limit slider 3025 is slidably connected to the second horizontal guide rod 3026, and the second horizontal guide rod 3026 is connected to a slide rail 304.

[0062] The present invention realizes the precise control of the deformation of the hot plate through a dual-mode limit structure. In the bending limit structure 301, the first limit slider 3011 is hinged to the mounting seat 208 at the bottom end of the heat-conducting foil 201 and slides horizontally along the first horizontal guide rod 3012. The second limit slider 3013 moves longitudinally on the vertical guide rod 3014 to form an X-Y axis two-way limit system. When the heat-conducting foil 201 bends, the second limit slider 3013 restricts the horizontal displacement of the first limit slider 3011, and the second limit slider 3013 constrains the bending center position through the vertical guide rod 3014 to ensure that the heat-conducting foil 201 deforms precisely according to the preset radius.

[0063] The linear deformation limiting structure adopts a gear 3022 rack 3021 transmission system, the servo motor 3023 drives the gear 3022 to rotate, and drives the top mounting seat 208 of the heat conductive foil 201 to move linearly through the meshing rack 3021, and the third limiting slider 3025 and the second transverse guide rod 3026 form an auxiliary sliding system. When the top of the heat conductive foil 201 moves downward, the third limiting slider 3025 makes the limiting housing 3024 slide along the second transverse guide rod 3026. The dual-mode limiting structure of the present invention assists the deformation of the heat plate, so that the controllability of the heat plate deformation process is improved.

[0064] Further, such as Figures 3 to 4 As shown, one side of the deformation layer 203 of the present invention is bonded with a mounting soft board 205, and ten cylinders 206 are equidistantly mounted on the mounting soft board 205. The output ends of the ten cylinders 206 are all connected to the heat conductive foil 201, and the output ends of the cylinders 206 are located in the gap between the starting part and the resetting part.

[0065] The present invention uses an auxiliary deformation system composed of a cylinder 206. After the deformable hot plate structure 2 is deformed, the cylinder 206 pushes the heat-conducting foil 201 in front of the deformation layer 203 through the output end, so that the heat-conducting foil 201 is in a deformed state. Then, the cylinder 206 causes a local micro-displacement of the heat-conducting foil 201, so that the partial structure of the heat-conducting foil 201 is convex or contracted, thereby dynamically compensating for the thermal deformation of the heat-conducting foil 201 during welding, and improving the consistency of the weld penetration. The present invention sets the cylinder 206 to make the heat-conducting foil 201 complete the local deformation, thereby realizing the local fine adjustment of welding and improving the welding qualification rate.

[0066] Further, if Figure 4 As shown, fifty bending grooves 2011 are equidistantly provided along the long axis direction on one side of the heat conductive foil 201 close to the deformable layer 203 , and the bending grooves 2011 are trapezoidal structures, and the cross-sectional openings of the bending grooves 2011 gradually increase toward the outside of the heat conductive foil 201 .

[0067] The present invention provides a bending groove 2011 on the side of the heat-conducting foil 201 close to the deformation layer 203, and the bending groove 2011 is evenly spaced along the long axis direction of the heat-conducting foil 201, and the cross section is a trapezoidal structure, so that the heat-conducting foil 201 can generate a stress concentration point when deforming, and guide the heat-conducting foil 201 to bend along a preset track. When the shape memory alloy starter part is energized and contracted, the bending groove 2011 weakens the local rigidity of the heat-conducting foil 201, so that the heat-conducting foil 201 completes the preset arc deformation in a shorter time. With the local push of the micro cylinder 206, the bending groove 201 can generate additional elastic deformation, and accurately compensate for the curved surface tolerance of the weldment. The present invention guides the heat-conducting foil 201 to bend along the preset track when deforming through the bending groove 2011, and at the same time increases the speed at which the heat-conducting foil 201 completes the arc deformation.

[0068] Furthermore, as Figures 6 to 11 shown, the bending limit structure 301 involved in the present invention further includes a fixed seat 303, a slide rail 304, a lateral limit bolt 305, and a longitudinal limit bolt 306; the fixed seat 303 is slidably connected to the longitudinal guide rod 3014, the fixed seat 303 is slidably connected to the slide rail 304, both the lateral limit bolt 305 and the longitudinal limit bolt 306 are installed on the fixed seat 303, the lateral limit bolt 305 is used to limit the lateral movement of the fixed seat 303 on the slide rail 304, and the longitudinal limit bolt 306 is used to limit the longitudinal movement of the longitudinal guide rod 3014 on the fixed seat 303.

[0069] The present invention forms a two-dimensional adjustment system through the lateral limit bolt 305 and the longitudinal limit bolt 306. When welding housings with different arcs, first loosen the longitudinal limit bolt 306 to move the longitudinal guide rod 3014 to the target height, then loosen the lateral limit bolt 305 to adjust the lateral position of the fixed seat 303 on the slide rail 304. Subsequently, the longitudinal limit bolt 306 and the lateral limit bolt 305 are tightened to form a rigid limit. The present invention adjusts the longitudinal position of the longitudinal guide rod 3014 and the lateral position of the fixed seat 303 through the longitudinal limit bolt 306 and the lateral limit bolt 305, thereby adjusting the limit range of the bending limit structure 301 and controlling the deformation arc of the deformable hot plate structure 2.

[0070] As Figures 1 to 12 shown, a method for using a welding device for a FIX component housing involved in the present invention includes the following steps:

[0071] S1. Limit position adjustment: By loosening the lateral limit bolt 305 and the longitudinal limit bolt 306, the fixed seat 303 is moved along the slide rail 304 to adjust the lateral position of the second limit slider 3013. When pushing the longitudinal guide rod 3014 to adjust the height of the longitudinal guide rod 3014, when both the lateral position and the height are adjusted to preset values, the lateral limit bolt 305 and the longitudinal limit bolt 306 are tightened to complete the fixation;

[0072] S2. Housing handling: The linear drive motor drives the robotic arm 402 to move, the robotic arm 402 drives the vacuum chuck 403 to move, the vacuum chuck 403 adsorbs the upper shell and the lower shell of the FIX component housing, and drives the upper shell and the lower shell for welding processing;

[0073] S3. Arc edge welding: When the upper shell or the lower shell moves to the corresponding welding part and welding is performed on the arc-shaped edge of the upper shell or the lower shell, the deformation structure 3 cooperates with the deformable hot plate structure 2 for deformation. The starting part of the deformation layer 203 is electrified and deformed, driving the deformation of the heat conduction foil 201. One end of the heat conduction foil 201 is limited by the linear driving structure 302, and the other end drives the first limit slider 3011 to slide on the first transverse guide rod 3012. The first transverse guide rod 3012 slides on the longitudinal guide rod 3014 through the second limit slider 3013. Through the transverse limit of the second limit slider 3013 and the longitudinal limit of the longitudinal guide rod 3014, the moving position of the other end of the heat conduction foil 201 is restricted, so that the heat conduction foil 201 is bent to a specified radian in cooperation with the deformation layer 203, and then the arc-shaped edge of the upper shell or the lower shell is welded;

[0074] S4. Straight edge welding: When welding the straight edge of the upper shell or the lower shell, the deformation structure 3 cooperates with the deformable hot plate structure 2 for deformation. The reset part of the deformation layer 203 is electrified and deformed, driving the heat conduction foil 201 to be deformed into a straight plate. At the same time, one end of the heat conduction foil 201 moves downward along with the toothed rod. The servo motor 3023 drives the toothed rod to move through the gear 3022. During the movement, due to the shortening of the toothed rod, the limit housing 3024 connected to the servo motor 3023 moves along the second transverse guide rod 3026 through the third limit slider 3025, deforming the heat conduction foil 201 into a horizontally arranged straight plate, and then welding the straight edge of the upper shell or the lower shell;

[0075] S5. Pressing combination: After welding the upper shell or the lower shell, the upper shell or the lower shell is transported by the handling structure 4, and pressure is applied to the upper shell, so that the upper shell and the lower shell are combined together by the hot melting part under the action of the pressure to complete the welding.

[0076] The embodiments disclosed in the present invention are preferred embodiments, but not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention according to the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A welding device for a FIX component housing, characterized in that: It includes a welding platform and two welding parts arranged on the welding platform; The two welding parts are used to weld the upper shell and the lower shell of the FIX component housing respectively, and the welding part includes welding modules located on both sides of the upper shell or the lower shell, and the welding module includes a deformable hot plate structure and a deformation structure; The deformable hot plate structure has a straight plate state and an arc plate state; the deformable structure has a curved state and a straight state, including a curved limit structure and a linear drive structure; In the bent state, the linear drive structure fixes one end of the deformable hot plate structure, and the bending limit structure limits the movement range of the other end of the deformable hot plate structure, so that the deformable hot plate structure is deformed into an arc plate structure with a specific arc, which is used for hot plate welding of the arc edge of the upper shell or the lower shell; In a straight state, the linear driving structure drives one end of the deformable hot plate structure to move, and the curved limiting structure assists the movement of the other end of the deformable hot plate structure. The deformable hot plate structure is deformed into a straight plate structure parallel to the welding table, which is used for hot plate welding of the straight edges of the upper shell or the lower shell.

2. A welding device for a FIX component housing according to claim 1, characterized in that: The deformable heat plate structure comprises a heat-conducting foil, a heating wire and a deformation layer, wherein the heat-conducting foil and the deformation layer are bonded together, and the heating wire is arranged in the heat-conducting foil along the long axis direction of the heat-conducting foil, and the deformation layer is used to drive the heat-conducting foil to deform between the straight plate structure and the arc plate structure, and the heat-conducting foils on the two welding parts are oriented to adapt to the upper shell and the lower shell respectively; The deformation layer is connected to an energized device, and the deformation layer is divided into a starting part and a resetting part, and the starting part and the resetting part are both independently set shape memory alloys, and the surface of the shape memory alloy is coated with a flexible heat-insulating material, and the starting part and the resetting part change into an original arc plate state and an original straight plate state respectively after power is turned on.

3. A welding device for a FIX component housing according to claim 2, characterized in that: A mounting soft board is attached to one side of the deformation layer, and a plurality of cylinders are equidistantly mounted on the mounting soft board. The output ends of the plurality of cylinders are all connected to the heat-conducting foil, and the output ends of the cylinders are located at the gap between the starting part and the resetting part.

4. A welding device for a FIX component housing according to claim 3, characterized in that: A connecting seat is installed at the top and bottom of the heat-conducting foil, and a mounting seat is rotatably connected to the connecting seat. The two mounting seats are respectively arranged on the bending limiting structure and the linear driving structure.

5. A welding device for a FIX component housing according to claim 4, characterized in that: A plurality of bending grooves are equidistantly formed on one side of the heat-conducting foil close to the deformation layer along the long axis direction, and the bending grooves are trapezoidal structures, and the cross-sectional openings of the bending grooves gradually increase toward the outside of the heat-conducting foil.

6. A welding device for a FIX component housing according to claim 5, characterized in that: The bending limiting structure includes a first limiting slider, a first transverse guide rod, a second limiting slider, and a longitudinal guide rod; The first limit slider is connected to a mounting seat at the bottom end of the heat-conducting foil, the first limit slider is slidably connected to the first transverse guide rod in a transverse manner, the second limit slider is slidably connected to the first transverse guide rod, and the second limit slider is slidably connected to the longitudinal guide rod in a longitudinal manner, the first transverse guide rod and the second limit slider form a transverse limit structure, and the second limit slider and the longitudinal guide rod form a longitudinal limit structure.

7. A welding device for a FIX component housing according to claim 6, characterized in that: The bending limiting structure also includes a fixing seat, a slide rail, a transverse limiting bolt, and a longitudinal limiting bolt; The fixed seat is slidably connected to the longitudinal guide rod, and the fixed seat is slidably connected to the slide rail. The transverse limit bolt and the longitudinal limit bolt are both installed on the fixed seat, the transverse limit bolt is used to limit the transverse movement of the fixed seat on the slide rail, and the longitudinal limit bolt is used to limit the longitudinal movement of the longitudinal guide rod on the fixed seat.

8. A welding device for a FIX component housing according to claim 7, characterized in that: The linear deformation limiting structure includes a rack, a gear, a servo motor, and a limiting housing; The rack is connected to a mounting seat at the top of the heat-conducting foil, the gear is meshed and connected to one side of the rack, the gear is installed at the output end of the servo motor, the servo motor is installed on the limit housing, the gear is arranged in the limit housing, and the rack is slidably connected to the limit housing.

9. A welding device for a FIX component housing according to claim 8, characterized in that: The linear deformation limiting structure further includes a third limiting slider and a second transverse guide rod; The third limit sliding block is installed on the limit housing, and the third limit sliding block is slidably connected to the second transverse guide rod, and the second transverse guide rod is connected with a slide rail.

10. A welding device for a FIX component housing according to claim 9, characterized in that: The welding table is also provided with a transport structure, which is used to transport the FIX component housing, and includes a linear drive device, a mechanical arm, and a vacuum suction cup; The two linear drive devices are respectively installed on both sides of the welding table, the mechanical arm is installed at the output end of the linear drive device, and the vacuum suction cup is installed at the moving end of the mechanical arm.

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