Automobile door sill inner partition plate welding processing device

Abstract

The application discloses a kind of automobile door sill inner partition plate welding processing device, it is related to plasma welding machine technical field, the present application, including side support, the front side of side support is fixedly connected with inclined welding plate, the bottom end front side of inclined welding plate is fixedly connected with bottom plate, the upper surface of bottom plate is fixedly connected with electric sliding table, the upper mobile end of electric sliding table is fixedly connected with plasma welding arm, the free end of plasma welding arm is hinged with welding head, the inner surface of both sides of inclined welding plate is fixedly connected with electric guide rail one;When frame falls, bottom end falls on buffer plate, and is pulled by telescopic rod one and its spring by electric guide rail one sliding down, reduces impact force, so that door frame is stably placed on inclined welding plate, avoid damage in conveying and welding transfer process, then realize quick fixing by hydraulic cylinder contraction driving clamping seat press door frame front side, improve welding stability and precision.

Description

Technical Field

[0001] This invention belongs to the field of plasma welding machines, specifically relating to a welding processing device for the inner partition of an automobile door sill. Background Technology

[0002] The automotive door sill inner partition welding processing device is an automated precision equipment for welding the reinforcing partition inside the door sill on the side of the vehicle body. It uses a high-temperature, high-energy-density plasma arc as a heat source to precisely weld the metal door sill inner partition to the inner and outer panels of the door sill to form a stable cavity structure.

[0003] Patent CN210615618U discloses a welding processing device for an inner partition panel of an automobile door sill. During use, the stamped inner partition panel is placed on a base plate, and the positioning holes on the bottom surface of the inner partition panel are fixed with the part positioning pins on the base plate. The bottom, side, rear, and top surfaces are fixed by bottom pressing mechanism, side pressing mechanism, rear pressing mechanism, and top pressing mechanism, respectively. By holding the handles on both sides of the base plate with both hands, the welding positioning plates are used for fast and precise welding processing, which can make the top plate and side plate fit together completely, increasing the mechanical performance of the inner partition panel. It solves the problems of spatter and uneven plate thickness at the weld point in traditional welding, improves the welding efficiency of the inner partition panel, and improves the quality of the welded parts and the overall safety performance.

[0004] The above-mentioned device also has the following problems: when the door frame is transported to the welding position, it is often damaged or displaced due to impact. The lack of a buffer mechanism makes it easy to deform. At the same time, the manual clamping and fixing efficiency is low and the centering is inaccurate, which affects the stability and accuracy of plasma welding. When unloading, the limit switches need to be released one by one, which is cumbersome and makes it difficult to quickly switch work stations. Summary of the Invention

[0005] The purpose of this invention is to provide a welding processing device for the inner partition of an automobile door sill, in order to solve the problems in the prior art, such as damage or displacement caused by impact when the door frame is transported to the welding position, deformation caused by lack of buffer mechanism, low efficiency and inaccurate centering of manual clamping, which affect the stability and accuracy of plasma welding, and the need to release the limit one by one during unloading, which is cumbersome and difficult to quickly switch work positions.

[0006] To achieve the above objectives, the present invention provides a welding processing apparatus for an inner partition of an automobile door sill, comprising:

[0007] A side bracket, wherein a slanted welding plate is fixedly connected to the front side of the side bracket, a base plate is fixedly connected to the bottom front side of the slanted welding plate, an electric slide is fixedly connected to the upper surface of the base plate, a plasma welding arm is fixedly connected to the upper moving end of the electric slide, a welding head is hinged to the free end of the plasma welding arm, and an electric guide rail is fixedly connected to the inner surfaces of both sides of the slanted welding plate.

[0008] A centering device is disposed above the base plate and is used to align the car door frame with the inclined welding plate.

[0009] A welding shield is provided on the front side of the inclined welding plate. The welding shield is used to block the sparks and impurities generated during plasma welding.

[0010] According to another advantageous design of the invention, the beveled welding plate comprises:

[0011] A buffer plate is slidably connected to a front side of an electric guide rail, and a connecting plate is fixedly connected to the side surface of the buffer plate.

[0012] A protruding plate is fixedly connected to the front side of the top of the inclined welding plate, and a telescopic rod is fixedly connected to the lower surface of the protruding plate.

[0013] According to another advantageous design of the invention, the inclined welding plate further includes:

[0014] A hydraulic cylinder is disposed on the inner side of the inclined welding plate, and a clamp is fixedly connected to the free end of the front side of the hydraulic cylinder;

[0015] A rotating sleeve is hinged to the inner surfaces of both sides of the inclined welding plate, and a gear is fixedly connected to the circumferential surface of the rotating sleeve.

[0016] A rack is fixedly connected to the upper surface of the buffer plate.

[0017] According to another advantageous design of the invention, the rear end of the buffer plate abuts against the front side of the inclined welding plate, the rear end of the connecting plate abuts against the front side of the inclined welding plate, a spring is provided inside the first telescopic rod, the bottom free end of the first telescopic rod is fixedly connected to the upper surface of the buffer plate, the rear side of the gear abuts against the front side of the inclined welding plate, the circumferential surface of the hydraulic cylinder is engaged with the inner surface of the sleeve, the rear side of the rack abuts against the front side of the inclined welding plate, the rack slides through the lower surface of the convex plate and extends through the upper surface of the convex plate, and the rack and gear are meshed together.

[0018] According to another advantageous embodiment of the invention, the centering device comprises:

[0019] Telescopic rod two, the telescopic rod two is set on the rear side of the inclined welding plate, and the free end of the telescopic rod two is fixedly connected to an L-shaped plate;

[0020] A pusher frame is fixedly connected to one end of the L-shaped plate near the inclined welding plate.

[0021] According to another advantageous embodiment of the invention, the centering device further includes:

[0022] Electric guide rail two, the electric guide rail two is fixedly connected to the rear side of the inclined welding plate, and a guide rod is slidably connected to the inner surface of the electric guide rail two;

[0023] Second protrusion plate, which is fixedly connected to the rear side of the inclined welding plate;

[0024] A trapezoidal pressure block is fixedly connected to the inner surface of the buffer plate on the side away from the connecting plate;

[0025] A roller, which is hinged to the upper surface of a buffer plate.

[0026] According to another advantageous design of the present invention, the retracted end of the telescopic rod two is fixedly connected to the side surface of the convex plate two, the telescopic rod two passes through the side of the side bracket near the convex plate two and exits the side of the side bracket away from the convex plate two, the end of the guide rod away from the convex plate two is fixedly connected to the L-shaped plate, the lower inclined surface of the trapezoidal pressure block abuts against the side inclined surface of the pusher frame, the end of the electric guide rail two away from the L-shaped plate is fixedly connected to the side of the side bracket away from the convex plate two, and the rear end of the roller abuts against the front side surface of the inclined welding plate.

[0027] According to another advantageous embodiment of the invention, the anti-weld device comprises:

[0028] A protective frame is installed above the base plate, and an observation plate is fixedly connected to the top inner surface of the protective frame;

[0029] The positioning angle plate is fixedly connected to both sides of the upper surface of the base plate.

[0030] According to another advantageous embodiment of the invention, the anti-weld device further includes:

[0031] A support plate is fixedly connected to the front side of the buffer plate, and a connecting rod is hinged to the side of the support plate away from the push frame.

[0032] The scraper roller is fixedly connected to the circumferential surface of the connecting rod;

[0033] A sliding shaft is fixedly connected to the side of the positioning corner plate away from the protective frame, and a locking rod is slidably connected to the inner surface of the sliding shaft;

[0034] An adjusting shaft is fixedly connected to the end of the locking rod away from the protective frame.

[0035] According to another advantageous design of the invention, the bottom of the protective frame is engaged with the inner surface of the positioning angle plate, the support plate abuts against both sides of the inner surface of the protective frame, the circumferential surface of the scraper abuts against the rear side of the observation plate, a spring is provided between the adjusting shaft and the positioning angle plate, the locking rod is slidably connected to the inner surface of the positioning angle plate, and the locking rod slides through the bottom side surface of the protective frame into the bottom inner surface of the protective frame.

[0036] The beneficial effects of this invention are:

[0037] 1. When the frame falls, its bottom end lands on the buffer plate. It slides down via the electric guide rail and is pulled by the telescopic rod and its spring, which reduces the impact force and allows the door frame to be placed stably on the inclined welding plate, avoiding damage during transportation and welding. Then, the hydraulic cylinder retracts to drive the clamp to press the front side of the door frame, achieving rapid fixation and improving welding stability and accuracy. The gear drives the rotating sleeve to rotate inside the inclined welding plate, causing the hydraulic cylinder and clamp to rotate, so that the clamp faces the vertical central axis of the inclined welding plate, thereby clamping the four corners of the front side of the door frame and enhancing the positioning effect. When it is necessary to remove the door frame, the rack rises a certain distance and drives the gear to rotate half a turn in the opposite direction, so that the clamp stands up. Thus, while the inclined welding plate supports the door frame, it quickly releases the clamp from the door frame, making it easy to remove the door frame from the inclined welding plate and improving the ease of use of the device.

[0038] 2. After the door frame is smoothly placed, the pusher moves horizontally closer to the side of the door frame, pushing the door frame to align with the center of the inclined welding plate. This avoids excessive deviation between the welding position of the partitions inside each threshold and the welding head, ensuring consistent welding quality of the partitions inside the same batch of door frames and improving the pass rate. The pusher and L-shaped plate are reset by the tension of the telescopic rod two and push the door frame to automatically center, improving the ease of use of the device. When the door frame is placed, the roller catches it, thus turning the sliding friction of the door frame movement into rolling friction, making the door frame centering process more convenient and labor-saving, and achieving better alignment. At the same time, the elastic reset effect of the telescopic rod two enhances the pushing force of the pusher, allowing the door frame to be pushed to the center for welding more quickly and smoothly, improving work efficiency. When the pusher moves horizontally, it drives the guide rod to slide within the electric guide rail two, making the pusher move more stably under pressure and preventing it from bending under pressure, further improving work efficiency.

[0039] 3. During welding, the protective frame blocks sparks and impurities, improving welding safety. The observation plate allows workers to easily observe the welding area and ensure welding quality. When placing the next door frame, the scraper roller contacts the observation plate and scrapes off adhering impurities, preventing them from accumulating and compromising the observation effect, thus ensuring effective monitoring of the welding area. The scraper roller rolls due to friction, increasing the adhesion surface to remove more impurities and further ensuring the observation effect of the observation plate. After a batch of door frames is welded, the locking rod is removed from the protective frame, making it easy to disassemble the protective frame and observation plate from the inside of the positioning corner plate for cleaning and repair, improving the ease of use of the device. During installation, the bottom of the protective frame is inserted between the two positioning corner plates, and the adjusting shaft is released. It is reset by the spring and drives the locking rod to insert into the protective frame to complete the locking, improving the stability of the device and further enhancing ease of use. Attached Figure Description

[0040] Figure 1 This is a perspective view of the front side of the device of the present invention;

[0041] Figure 2 This is a perspective view of the top surface of the front side of the inclined welding plate of the present invention;

[0042] Figure 3 This is the invention Figure 2 Enlarged view of A in the middle;

[0043] Figure 4 This is a three-dimensional half-sectional view of the top surface of the front side of the centering device of the present invention;

[0044] Figure 5 This is the invention Figure 4 Enlarged view of B in the middle;

[0045] Figure 6 This is a perspective view of the rear side of the centering device of the present invention;

[0046] Figure 7 This is a three-dimensional half-sectional view of the front top surface of the anti-welding device of the present invention;

[0047] Figure 8 This is the invention Figure 7 Enlarged view of C;

[0048] Figure 9 This is the invention Figure 7 A magnified view of D.

[0049] The markings in the diagram are as follows:

[0050] 1. Side support; 2. Inclined welding plate; 3. Base plate; 4. Electric slide table; 5. Plasma welding arm; 6. Welding head; 7. Electric guide rail one; 8. Centering device; 9. Anti-welding device; 10. Buffer plate; 11. Connecting plate; 12. Convex plate one; 13. Telescopic rod one; 14. Hydraulic cylinder; 15. Clamping seat; 16. Sleeve; 17. Gear; 18. Rack; 81. Pushing frame; 82. L-shaped plate; 83. Telescopic rod two; 84. Guide rod; 85. Electric guide rail two; 86. Convex plate two; 87. Trapezoidal pressure block; 88. Roller; 91. Protective frame; 92. Observation plate; 93. Positioning angle plate; 94. Support plate; 95. Connecting rod; 96. Scraper roller; 97. Sliding shaft; 98. Locking rod; 99. Adjusting shaft. Detailed Implementation

[0051] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0052] like Figure 1-9As shown, one embodiment of the present invention is a welding processing device for an inner partition of an automobile door sill, comprising a side support 1, a slanted welding plate 2 fixedly connected to the front side of the side support 1, a base plate 3 fixedly connected to the bottom front side of the slanted welding plate 2, an electric slide table 4 fixedly connected to the upper surface of the base plate 3, a plasma welding arm 5 fixedly connected to the upper movable end of the electric slide table 4, a welding head 6 hinged to the free end of the plasma welding arm 5, electric guide rails 7 fixedly connected to the inner surfaces of both sides of the slanted welding plate 2, a centering device 8 disposed above the base plate 3 for aligning the automobile door frame with the slanted welding plate 2, and a welding shielding device 9 disposed on the front side of the slanted welding plate 2 for blocking welding during the welding process. The sparks and impurities generated fall onto the buffer plate 10 at the bottom when the frame falls. They then slide down via the electric guide rail 7 and are pulled by the telescopic rod 13 and its springs, reducing the impact and allowing the door frame to be placed stably on the inclined welding plate 2. This prevents damage during transport and welding. The inclined welding plate 2 includes the buffer plate 10, which is slidably connected to the front side of the electric guide rail 7. A connecting plate 11 is fixedly connected to the side surface of the buffer plate 10. A protruding plate 12 is fixedly connected to the top front side of the inclined welding plate 2. A telescopic rod 13 is fixedly connected to the lower surface of the protruding plate 12. The inclined welding plate 2 also includes a hydraulic cylinder 14, which is located inside the inclined welding plate 2. A clamping seat 15 is fixedly connected to the free end of the front side of the hydraulic cylinder 14. The rotating sleeve 16 is hinged to the inner surfaces of both sides of the inclined welding plate 2. A gear 17 is fixedly connected to the circumferential surface of the rotating sleeve 16, and a rack 18 is fixedly connected to the upper surface of the buffer plate 10. The hydraulic cylinder 14 retracts to drive the clamp 15 to press against the front side of the door frame, achieving rapid fixing and improving welding stability and precision. The gear 17 drives the rotating sleeve 16 to rotate inside the inclined welding plate 2, causing the hydraulic cylinder 14 and the clamp 15 to rotate, so that the clamp 15 faces the vertical central axis of the inclined welding plate 2, thereby clamping the four corners of the front side of the door frame and enhancing the positioning effect. The rear end of the buffer plate 10 abuts against the front side of the inclined welding plate 2, and the rear end of the connecting plate 11 abuts against the front side of the inclined welding plate 2. A spring is installed inside the telescopic rod 13, and the bottom of the telescopic rod 13... The free end is fixedly connected to the upper surface of the buffer plate 10. The rear side of the gear 17 abuts against the front side of the inclined welding plate 2. The circumferential surface of the hydraulic cylinder 14 is engaged with the inner surface of the rotating sleeve 16. The rear side of the rack 18 abuts against the front side of the inclined welding plate 2. The rack 18 slides through the lower surface of the convex plate 12 and passes through the upper surface of the convex plate 12. The rack 18 and the gear 17 are meshed. When the door frame needs to be removed, the rack 18 rises a certain distance and drives the two gears 17 to rotate half a turn in the opposite direction, so that the two clamps 15 are erected. Thus, while the inclined welding plate 2 supports the door frame, the clamps 15 quickly release the restriction on the door frame, making it easy to quickly remove the door frame from the inclined welding plate 2 and improving the ease of use of the device.

[0053] Working principle: The conveyor is connected to the two side supports 1. When the conveyor transports the car door frame to the front, the lower half of the door frame can fall onto the inclined welding plate 2. Then, the electric slide table 4 is activated, which drives the plasma welding arm 5 to move left and right, thereby adjusting the position of the plasma welding arm 5 to align it with the door frame. Then, the welding head 6 is activated. At this time, the plasma welding arm 5 drives the welding head 6 to move to the bottom of the car door frame above the sill and align it with the welding part of the sill and the partition to perform the welding operation. When the door frame moves from the inclined welding plate 2... During the descent, the bottom of the door frame lands on the buffer plate 10. After the buffer plate 10 catches the door sill, it slides down on the electric guide rail 7. At the same time, the buffer plate 10 is pulled by the telescopic rod 13 fixed on the convex plate 12 and its internal spring, thereby reducing the impact force of the door frame falling and allowing the door frame to be placed more stably on the inclined welding plate 2 for welding. This avoids damage to the door frame during the transfer between the conveying device and the welding device. After the door frame is in place, the hydraulic cylinder 14 is activated. The hydraulic cylinder 14 retracts, causing the clamp 15 to approach and press against the front side of the door frame, making the door frame quickly... The rapid fixation makes the welding more stable and improves the welding accuracy. Through the connecting plate 11, the buffer plates 10 on both sides descend synchronously. When the buffer plates 10 descend, they drive the rack 18 to descend. At the same time, the rack 18 drives the gear 17 to rotate through meshing motion. The gear 17 then drives the rotating sleeve 16 to rotate within the inclined welding plate 2. The inclined welding plate 2 then drives the hydraulic cylinder 14 and the clamping seat 15 to rotate. When the buffer plate 10 moves to its position, the final rotation direction of the four clamping seats 15 is such that the end of the clamping seat 15 away from the hydraulic cylinder 14 faces the center of the door frame. At this time, the clamping seat 15 is in a fixed position. The seat 15 can clamp the four front corners of the door frame. When the door frame needs to be removed, the electric guide rail 7 is activated. The electric guide rail 7 drives the buffer plate 10 and the rack 18 to rise a certain distance. At this time, the rack 18 drives the gear 17 to rotate half a turn in the opposite direction. The gear 17 then drives the hydraulic cylinder 14 and the clamp 15 to rotate half a turn in the opposite direction through the sleeve 16, so that the clamp 15 is erected. Thus, while the inclined welding plate 2 supports the door frame, the clamp 15 quickly releases the restriction on the door frame, making it easy to quickly remove the door frame from the inclined welding plate 2 and improving the ease of use of the device.

[0054] like Figure 1-9As shown, based on the above embodiment, the centering device 8 includes a second telescopic rod 83, which is located behind the inclined welding plate 2. An L-shaped plate 82 is fixedly connected to the free end of the second telescopic rod 83. A pusher 81 is fixedly connected to the end of the L-shaped plate 82 near the inclined welding plate 2. After the door frame is smoothly positioned, the pusher 81 moves horizontally towards the side of the door frame, pushing the door frame to align with the center of the inclined welding plate 2. This avoids excessive deviation between the position of the partitions inside each door frame and the welding head 6 during welding, ensuring consistent welding quality of the partitions inside the same batch of door frames. To improve the pass rate, the centering device 8 also includes an electric guide rail 2 85, which is fixedly connected to the rear side of the inclined welding plate 2. A guide rod 84 is slidably connected to the inner surface of the electric guide rail 2 85. A convex plate 2 86 is fixedly connected to the rear side of the inclined welding plate 2. A trapezoidal pressure block 87 is fixedly connected to the inner surface of the buffer plate 10 on the side away from the connecting plate 11. A roller 88 is hinged to the upper surface of the buffer plate 10. The pusher 81 and the L-shaped plate 82 are reset by the tension of the telescopic rod 2 83 and push the door frame to automatically center. The lifting device is convenient to use. When the door frame is positioned, roller 88 catches it, thus changing the sliding friction of the door frame movement into rolling friction, making the alignment process of the door frame more convenient and effortless, and improving the alignment effect. The retracted end of the telescopic rod 83 is fixedly connected to the side surface of the convex plate 86. The telescopic rod 83 passes through the side of the side bracket 1 near the convex plate 86 and out the side of the side bracket 1 away from the convex plate 86. The end of the guide rod 84 away from the convex plate 86 is fixedly connected to the L-shaped plate 82. The lower inclined surface of the trapezoidal pressure block 87 abuts against the side inclined surface of the pusher 81. Then, the end of the electric guide rail 85 away from the L-shaped plate 82 and the side bracket 1 away from the convex plate 86 are fixedly connected. The rear end of the roller 88 and the front side of the inclined welding plate 2 abut against each other. The elastic reset effect of the telescopic rod 83 enhances the thrust of the pusher 81, so that the door frame is pushed to the center for welding more quickly and smoothly, improving work efficiency. When the pusher 81 moves horizontally, it drives the guide rod 84 to slide in the electric guide rail 85, so that the pusher 81 moves more stably when under pressure, avoiding its bending under pressure, and further improving work efficiency.

[0055] Working principle: After the door frame is smoothly placed, the free end of the telescopic rod 83 retracts inward due to the elastic force of the spring inside, pulling the L-shaped plate 82 closer to the inclined welding plate 2. The L-shaped plate 82 then drives the pusher 81 to move horizontally and closer to the side of the door frame, thereby pushing the door frame to align with the center of the inclined welding plate 2. This avoids large positional deviations between the partitions inside each threshold and the welding head 6 during welding, which would reduce welding accuracy and ensure consistent quality of the partitions inside the same batch of door frames, improving the pass rate. Furthermore, because the door frame is caught by the roller 88 hinged above the buffer plate 10 when it is placed, thus... When the pusher 81 pushes the door frame, the sliding friction between the door frame and the buffer plate 10 is transformed into rolling friction between the door frame and the roller 88, making the door frame alignment process more convenient and effortless, and improving the alignment effect. When the buffer plate 10 descends, it drives the trapezoidal pressure block 87 to descend. When the lower inclined surface of the trapezoidal pressure block 87 contacts the side inclined surface of the pusher 81, it can push the pusher 81 to move towards both sides of the inclined welding plate 2 through the guide of the inclined surface, and pull the free end of the telescopic rod 13 to extend through the L-shaped plate 82. When the trapezoidal pressure block 87 descends to the position where it is separated from the pusher 81, the pusher 81 and the L-shaped plate 82... The plate 82 is reset under the tension of the telescopic rod 83 and pushes the door frame towards the center of the inclined welding plate 2. This automatically aligns the door frame with the inclined welding plate 2 during the door frame's placement, improving the ease of use of the device. Furthermore, the elastic reset effect of the telescopic rod 83 enhances the pushing force of the pusher 81, allowing for faster and smoother pushing of the door frame to the center of the inclined welding plate 2 for welding, thus improving the device's efficiency. Simultaneously, the pusher 81 and the L-shaped plate 82 move horizontally, causing the guide rod 84 to slide within the electric guide rail 85, making the pusher 81 move more stably under pressure. To prevent bending under pressure and further improve its working efficiency, the pusher 81 is equipped with a rubber protective pad at the contact position with the door frame to prevent collision between the pusher 81 and the door frame. After the door frame is removed, the electric guide rail 2 85 is activated. The electric guide rail 2 85 drives the guide rod 84 to slide away from the inclined welding plate 2. At this time, the guide rod 84 then drives the pusher 81 away from the buffer plate 10 through the L-shaped plate 82, thereby releasing the limit of the pusher 81 on the buffer plate 10. At this time, the buffer plate 10 is pulled upward by the telescopic rod 2 83 to reset, which facilitates the subsequent support and buffering of the door frame.

[0056] like Figure 1-9As shown, based on the above embodiment, the anti-welding device 9 includes a protective frame 91, which is set above the base plate 3. An observation plate 92 is fixedly connected to the top inner surface of the protective frame 91, and a positioning angle plate 93 is fixedly connected to both sides of the upper surface of the base plate 3. During welding, the protective frame 91 can block the generated sparks and impurities, improving welding safety. The observation plate 92 allows workers to easily observe the welding area and ensure the welding effect. When the next door frame is placed, the scraper roller 96 contacts the observation plate 92 and scrapes off the adhering impurities, preventing the continuous increase of impurities from damaging the observation effect and ensuring the monitoring effect of the welding area. The anti-welding device 9 also includes a support plate 94, which is fixedly connected to the front side of the buffer plate 10. A connecting rod 95 is hinged to the side of the support plate 94 away from the pusher 81. The scraper roller 96 is fixedly connected to the circumferential surface of the connecting rod 95. A sliding shaft 97 is fixedly connected to the side of the positioning angle plate 93 away from the protective frame 91. A locking rod 98 is slidably connected to the inner surface of the sliding shaft 97. An adjusting shaft 99 is fixedly connected to the side of the locking rod 98 away from the protective frame 91. At one end of frame 91, scraper roller 96 rolls due to friction, increasing the adhesion surface to scrape away more impurities, further ensuring the observation effect of observation plate 92. After a batch of door frames is welded, lock rod 98 is removed from protective frame 91, making it easy to disassemble protective frame 91 and observation plate 92 from the inside of positioning corner plate 93 for cleaning and repair, improving the ease of use of the device. The bottom of protective frame 91 is engaged with the inner surface of positioning corner plate 93, and support plate 94 abuts against both sides of the inner surface of protective frame 91. The circumferential surface of scraper roller 96... The device abuts against the rear side of the observation plate 92. A spring is provided between the adjusting shaft 99 and the positioning angle plate 93. The locking rod 98 is slidably connected to the inner surface of the positioning angle plate 93. The locking rod 98 slides through the bottom side surface of the protective frame 91 and enters the bottom inner surface of the protective frame 91. During installation, the bottom of the protective frame 91 is inserted between the two positioning angle plates 93. The adjusting shaft 99 is released, and it is reset by the spring and drives the locking rod 98 to be inserted into the protective frame 91 to complete the locking. This improves the stability of the device and further promotes the convenience of use.

[0057] Working principle: The welding head 6 is controlled to extend into the protective frame 91. When the welding head 6 is aligned with the door frame and partition, welding can begin. During the welding process, the protective frame 91 can block the sparks and impurities generated during welding, improving welding safety. After blocking the sparks, the observation plate 92 allows workers to easily observe the welding area, thus ensuring the welding effect. After the welded door frame is removed, when placing the next door frame, the buffer plate 10 descends, driving the support plate 94 to descend. The support plate 94 drives the connecting rod 95 to descend, which in turn drives the scraper roller 96 to descend. During the descent, the scraper roller 96 contacts the observation plate 92 and scrapes off the impurities adhering to the observation plate 92, preventing impurities from continuously splashing and adhering to the observation plate 92, thus ensuring that workers can monitor the welding area during the welding process. The scraper roller 96 is also affected by friction when in contact with the observation plate 92. The rolling action increases the adhesion surface, making it easier to scrape away more impurities and further ensuring the observation effect of the observation plate 92. After a batch of door frames is welded, the adjusting shaft 99 is pulled away from the protective frame 91. The adjusting shaft 99 drives the locking rod 98 to slide on the inner surface of the sliding shaft 97 and the positioning angle plate 93, and pulls away from the protective frame 91. At this time, the protective frame 91 and the observation plate 92 can be removed from the inside of the positioning angle plate 93 for easy cleaning and repair, improving the ease of use of the device. When the protective frame 91 and the observation plate 92 need to be installed, the bottom of the protective frame 91 is inserted between the two positioning angle plates 93. At this time, the adjusting shaft 99 is released. The adjusting shaft 99 is reset by the spring set between it and the positioning angle plate 93, and drives the locking rod 98 to slide into the protective frame 91, thereby locking the protective frame 91 and the positioning angle plate 93. This improves the stability of the device and further promotes the ease of use of the device.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A welding and processing device for the inner partition of an automobile door sill, characterized in that, include: Side bracket (1), the front side of the side bracket (1) is fixedly connected to a slanted welding plate (2), the bottom front side of the slanted welding plate (2) is fixedly connected to a base plate (3), the upper surface of the base plate (3) is fixedly connected to an electric slide table (4), the upper moving end of the electric slide table (4) is fixedly connected to a plasma welding arm (5), the free end of the plasma welding arm (5) is hinged to a welding head (6), and the inner surfaces of both sides of the slanted welding plate (2) are fixedly connected to an electric guide rail (7). Alignment device (8), which is disposed above the base plate (3), is used to align the car door frame with the inclined welding plate (2); Weld prevention device (9), the weld prevention device (9) is set on the front side of the inclined welding plate (2), the weld prevention device (9) is used to block the sparks and impurities generated during welding during the welding process; The inclined welding plate (2) includes: A buffer plate (10) is slidably connected to the front side of an electric guide rail (7), and a connecting plate (11) is fixedly connected to the side surface of the buffer plate (10). A protruding plate (12) is fixedly connected to the front side of the top of the inclined welding plate (2), and a telescopic rod (13) is fixedly connected to the lower surface of the protruding plate (12). The inclined welding plate (2) also includes: Hydraulic cylinder (14) is located inside the inclined welding plate (2), and a clamp (15) is fixedly connected to the free end of the front side of the hydraulic cylinder (14). A rotating sleeve (16) is hinged to the inner surfaces of both sides of the inclined welding plate (2), and a gear (17) is fixedly connected to the circumferential surface of the rotating sleeve (16). A rack (18) is fixedly connected to the upper surface of the buffer plate (10); When the rack (18) moves down and just contacts the lower gear (17), the upper gear (17) is driven to rotate by the rack (18), and at the same time, the upper clamp (15) is driven to rotate to face upward and face the lower clamp (15). Then the rack (18) continues to move and drives the upper and lower clamps (15) to rotate to face the door frame and be horizontal.

2. The automotive door sill inner partition welding processing device according to claim 1, characterized in that, The rear end of the buffer plate (10) abuts against the front side of the inclined welding plate (2), the rear end of the connecting plate (11) abuts against the front side of the inclined welding plate (2), a spring is provided inside the telescopic rod (13), the bottom free end of the telescopic rod (13) is fixedly connected to the upper surface of the buffer plate (10), the rear side of the gear (17) abuts against the front side of the inclined welding plate (2), the circumferential surface of the hydraulic cylinder (14) is engaged with the inner surface of the rotating sleeve (16), the rear side of the rack (18) abuts against the front side of the inclined welding plate (2), the rack (18) slides through the lower surface of the convex plate (12) and passes through the upper surface of the convex plate (12), and the rack (18) and the gear (17) are meshed.

3. The automotive sill inner partition welding processing device according to claim 2, characterized in that, The centering device (8) includes: Telescopic rod two (83) is set on the rear side of the inclined welding plate (2), and the free end of the telescopic rod two (83) is fixedly connected to an L-shaped plate (82). A pusher (81) is fixedly connected to one end of the L-shaped plate (82) near the inclined welding plate (2).

4. The automotive sill inner partition welding processing device according to claim 3, characterized in that, The centering device (8) further includes: Electric guide rail two (85) is fixedly connected to the rear side of the inclined welding plate (2), and a guide rod (84) is slidably connected to the inner surface of the electric guide rail two (85). The second protruding plate (86) is fixedly connected to the rear side of the inclined welding plate (2); Trapezoidal pressure block (87), the trapezoidal pressure block (87) is fixedly connected to the inner surface of the buffer plate (10) on the side away from the connecting plate (11); Roller (88) is hinged to the upper surface of buffer plate (10).

5. The automotive sill inner partition welding processing device according to claim 4, characterized in that, The retracted end of the telescopic rod (83) is fixedly connected to the side surface of the convex plate (86). The telescopic rod (83) passes through the side of the side bracket (1) near the convex plate (86) and exits the side of the side bracket (1) away from the convex plate (86). The end of the guide rod (84) away from the convex plate (86) is fixedly connected to the L-shaped plate (82). The lower inclined surface of the trapezoidal pressure block (87) abuts against the side inclined surface of the push frame (81). The end of the electric guide rail (85) away from the L-shaped plate (82) is fixedly connected to the side of the side bracket (1) away from the convex plate (86). The rear end of the roller (88) abuts against the front side of the inclined welding plate (2).

6. The automotive sill inner partition welding processing device according to claim 5, characterized in that, The anti-welding device (9) includes: A protective frame (91) is set above the base plate (3), and an observation plate (92) is fixedly connected to the top inner surface of the protective frame (91). Positioning angle plate (93) is fixedly connected to both sides of the upper surface of the base plate (3).

7. The automotive sill inner partition welding processing device according to claim 6, characterized in that, The anti-welding device (9) also includes: Support plate (94), the support plate (94) is fixedly connected to the front side of the buffer plate (10), and the side of the support plate (94) away from the push frame (81) is hinged with a connecting rod (95). Scraper roller (96), the scraper roller (96) is fixedly connected to the circumferential surface of the connecting rod (95); A sliding shaft (97) is fixedly connected to the side of the positioning angle plate (93) away from the protective frame (91), and a locking rod (98) is slidably connected to the inner surface of the sliding shaft (97). An adjusting shaft (99) is fixedly connected to the end of the locking rod (98) away from the protective frame (91).

8. The automotive sill inner partition welding processing device according to claim 7, characterized in that, The bottom of the protective frame (91) is engaged with the inner surface of the positioning corner plate (93), the support plate (94) abuts against both sides of the inner surface of the protective frame (91), and the circumferential surface of the scraper roller (96) abuts against the rear side of the observation plate (92).

9. The automotive sill inner partition welding processing device according to claim 8, characterized in that, A spring is provided between the adjusting shaft (99) and the positioning angle plate (93). The locking rod (98) is slidably connected to the inner surface of the positioning angle plate (93). The locking rod (98) slides through the bottom side surface of the protective frame (91) and penetrates into the bottom inner surface of the protective frame (91).

Images