Stainless steel fender and welding aid thereof

Abstract

The present application relates to the technical field of welding, and discloses a stainless steel fender tile and a welding auxiliary tool thereof, which comprise a base, the base specifically comprises a bottom plate, a plurality of support columns are fixedly installed on the bottom plate, the upper ends of the plurality of support columns are jointly fixedly connected with a multi-shaft welding machine, a processing table and a mounting seat are further fixedly installed on the upper surface of the bottom plate, the upper surface of the processing table is provided with an adjusting groove, two groups of sliding components are slidingly installed in the adjusting groove, a limiting component is arranged on the sliding component, and a fixing seat is fixedly installed at the middle position of the adjusting groove.In the present application, the sliding components are arranged on the base, the second electric telescopic rod drives the limiting table to slide along the movable table, and the adsorption effect of the electromagnet and the magnetic attraction plate is matched, so that the movable table and the fixed table slide relatively, the two groups of limiting components are slid as a whole to the outside of the base, an open loading space without support column interference is realized, and the loading convenience is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to a stainless steel mudguard and its welding accessories. Background Technology

[0002] Stainless steel mudguards, as an important component of commercial vehicles, primarily serve to prevent mud and water splashes and protect the vehicle body and surrounding vehicles and pedestrians. With the diversification of logistics transportation and engineering operation scenarios, vehicles are placing higher demands on the structural strength and durability of mudguards. Currently, stainless steel mudguards are mostly single-plate structures, directly installed after being stamped or bent. This traditional structure has significant shortcomings when facing complex working conditions: in long-distance highway driving scenarios, mudguards are subjected to high-frequency, low-amplitude vibrations and airflow impacts for extended periods, making them prone to fatigue fracture at the connection point with the vehicle frame; in harsh road conditions such as mines and construction sites, mudguards are easily struck by gravel kicked up by wheels, leading to localized dents or bending deformation; and in large-span applications such as semi-trailers, extra-long mudguards are prone to sagging or twisting deformation in the middle due to their own weight and crosswinds.

[0003] Meanwhile, existing welding fixtures for stainless steel mudguards also have many limitations. Traditional welding fixtures mostly use fixed clamping structures, which are difficult to adapt to the support requirements of mudguard ends with different arc radii. Moreover, the loading process is often limited by the column or support structure of the welding equipment, resulting in limited operating space and difficulties in loading. To address this, we propose a stainless steel mudguard and its welding fixture. Summary of the Invention

[0004] The present invention mainly addresses the technical problems existing in the prior art by providing a stainless steel mudguard and its welding accessories.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a welding auxiliary tool for stainless steel mudguards, including a base, the base specifically including a bottom plate, multiple support columns fixedly installed on the bottom plate, the upper ends of the multiple support columns being fixedly connected to a multi-axis welding machine, a processing table and a mounting seat fixedly installed on the upper surface of the bottom plate, wherein the upper surface of the processing table is provided with an adjustment groove, two sets of sliding components are slidably installed inside the adjustment groove, and limit components are provided on the sliding components, a fixed seat is fixedly installed in the middle position of the adjustment groove, and two sets of pressing components used in conjunction with the multi-axis welding machine are slidably installed on the upper surface of the mounting seat;

[0006] The adjusting groove has two symmetrically arranged sliding seats slidably installed inside. The sliding assembly specifically includes a fixed platform fixedly connected to the sliding seats. A movable platform is connected to the end of the fixed platform. A second electric telescopic rod is fixedly installed on the upper surface of the fixed platform away from the movable platform. A limit platform is fixedly installed at the output end of the second electric telescopic rod, and the bottom surface of the limit platform is slidably connected to the upper surface of the movable platform. A first fixed frame is fixedly installed on both sides of the upper surface of the limit platform. A sleeve is rotatably installed between the two first fixed frames. An adjusting gear is fixedly installed in the middle of the sleeve. Two sets of fixed rods are fixedly installed on the outer wall of the sleeve. An adjusting rod is slidably connected to each set of fixed rods. A connecting rod is fixedly connected to the end of each set of multiple adjusting rods. A rack plate that meshes with the adjusting gear is slidably installed on the upper surface of the limit platform below the adjusting gear. A first electric telescopic rod is also fixedly installed. The output end of the first electric telescopic rod is fixedly connected to the rack plate.

[0007] Preferably, a third electric telescopic rod is fixedly installed on the bottom surface of the movable platform at the end away from the fixed platform. An installation plate is fixedly installed on the output end of the third electric telescopic rod. Two symmetrically arranged grooves are opened on the bottom surface of the installation plate, and multiple rollers are rotatably installed inside the grooves.

[0008] Preferably, the mounting base specifically includes a mounting platform, the upper surface of which is provided with a first guide rail, and the lower end of the outer wall of the mounting platform is provided with a rectangular groove; the pressing component includes a multi-axis manipulator, which slides on the upper surface of the mounting base, and a connecting box is rotatably mounted at the end of the multi-axis manipulator. A first drive motor is fixedly mounted on the outer wall of the end where the multi-axis manipulator connects to the connecting box. Two symmetrically arranged pressure rods are slidably mounted on the lower end of the connecting box. An elastic pressure plate is fixedly mounted on the bottom surface of each pressure rod. A spring is sleeved on the outer wall of the pressure rod. One end of the spring is fixed to the upper surface of the elastic pressure plate, and the other end is fixedly connected to the bottom surface of the connecting box.

[0009] Preferably, a magnetic suction plate is fixedly installed on the upper surface of the end of the movable platform away from the fixed platform, and an electromagnet that works in conjunction with the magnetic suction plate is fixedly installed on the outer wall of the limiting platform.

[0010] Preferably, a bidirectional lead screw is rotatably installed inside the adjustment groove. The bidirectional lead screw is threadedly connected to two sliding seats inside the adjustment groove. A second drive motor is fixedly installed on the outer wall of the processing table corresponding to the end of the bidirectional lead screw. The output end of the second drive motor is fixedly connected to the end of the bidirectional lead screw.

[0011] Preferably, a support platform is movably mounted on the upper surface of the fixed base, and the support platform specifically includes a fourth electric telescopic rod and a rectangular plate.

[0012] Preferably, contact sensors are provided on both outer walls of the fixed end of the third electric telescopic rod. The contact sensors specifically include a trigger and a piezoelectric sensing component, wherein the trigger and the piezoelectric sensing component are fixedly installed at corresponding positions on the outer walls of the third electric telescopic rod and the processing table.

[0013] Preferably, a Hall sensor is fixedly installed at the middle position of the outer wall of the limiting platform, and a magnet is fixedly installed on the outer wall of the fixing platform directly below the Hall sensor.

[0014] Preferably, the upper surface of the movable platform is provided with a second guide rail, and the limiting platform slides along the second guide rail.

[0015] A stainless steel mudguard, wherein the stainless steel mudguard is provided with at least one of a first reinforcing component, a second reinforcing component, or a third reinforcing component;

[0016] The first reinforcing component includes a torque-resistant reinforcing frame, which has an X-shaped structure, and positioning rods are welded and fixed at both ends of the torque-resistant reinforcing frame.

[0017] The second reinforcing component includes multiple first reinforcing ribs equidistantly distributed on the upper surface of the stainless steel mudguard, wherein multiple second reinforcing ribs are welded and fixedly installed between two adjacent first reinforcing ribs located at both ends of the stainless steel mudguard, and annular reinforcing ribs are also fixed at both ends of the stainless steel mudguard.

[0018] The third reinforcing component includes a rectangular frame welded and fixed to the upper surface of the stainless steel mudguard. A cross-shaped reinforcing frame is welded and fixed inside the rectangular frame. Multiple mounting holes are opened through the stainless steel mudguard. A ring is welded and fixed to the upper surface of the stainless steel mudguard at the position corresponding to the multiple mounting holes. Multiple radial Y-shaped reinforcing frames are welded and fixed to the periphery of the multiple rings.

[0019] Beneficial effects

[0020] This invention provides a stainless steel mudguard and its welding fixture. It has the following beneficial effects:

[0021] (1) The stainless steel mudguard and its welding accessories, by setting a sliding component on the base, the second electric telescopic rod drives the limiting platform to slide along the movable platform, and with the adsorption effect of the electromagnet and the magnetic plate, the movable platform and the fixed platform slide relative to each other, and the two sets of limiting components are slid to the outside of the base as a whole, realizing an open loading space without the interference of the support column, which greatly improves the convenience of loading. In addition, the sleeve in the limiting component is driven to rotate through the cooperation of the rack plate and the adjusting gear. The two sets of fixed rods are set vertically and can rotate around the axis of the sleeve. Combined with the gear adjustment structure between the adjusting rod and the fixed rod, the support angle and support length can be flexibly adjusted, thereby realizing the precise support of stainless steel mudguards with different end arc radii, which significantly improves the versatility and adaptability of the welding accessories.

[0022] (2) The stainless steel mudguard and its welding tools, by setting a pressing component that can slide along the guide rail on the mounting base, and using a multi-axis manipulator in conjunction with a rotatable connecting box and elastic pressure plate, can flexibly adjust the pressing posture according to the arrangement position of the reinforcing ribs, and perform vertical stable pressing on complex structures such as X-type anti-torque reinforcing frame, corrugated reinforcing ribs or radial Y-type reinforcing frame. The setting of spring and elastic pressure plate can provide flexible buffer during the pressing process, avoid damage to the workpiece caused by rigid pressing. Before welding, the reinforcing ribs and mudguard body are reliably pre-positioned, effectively preventing the reinforcing ribs from shifting due to vibration or thermal stress during the welding process, thereby ensuring the welding position accuracy and weld quality, and greatly improving the yield.

[0023] (3) The stainless steel mudguard and its welding accessories, with a limiting component that uses a rotating adjustment structure, can stably support the stainless steel mudguard in two orientations: with the upper surface facing up and the back facing up. Specifically, the sleeve in the limiting component rotates at an angle driven by the meshing of the rack and pinion and the adjusting gear, allowing the two sets of fixed rods and adjusting rods to switch to opposite working states with the angle facing outward or inward depending on the mudguard's orientation: when the upper surface of the mudguard is facing up, the limiting component supports the arc-shaped bottoms at both ends of the mudguard in an outward orientation, facilitating the welding of reinforcing components on the upper surface of the mudguard; when the back of the mudguard is facing up, the limiting component switches to an inward orientation, providing reverse support to the arc-shaped structures at both ends of the mudguard, making the back of the mudguard face up for welding operations. The same set of welding accessories can accommodate the welding needs of the mudguard in two different orientations without changing the tooling, effectively reducing tooling changeover time, improving production efficiency, and lowering equipment investment costs, demonstrating good versatility and economy. Attached Figure Description

[0024] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0025] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0026] Figure 1 This is a schematic diagram of the overall structure of the welding fixture of the present invention;

[0027] Figure 2 This is a schematic diagram of the pressing component structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the mounting base structure of the present invention;

[0029] Figure 4 This is a schematic diagram of the sliding component structure of the present invention;

[0030] Figure 5 This is a schematic diagram of the limiting component structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the adjusting groove structure of the present invention;

[0032] Figure 7 This is a schematic diagram of the limiting component of the present invention supporting the stainless steel mudguard.

[0033] Figure 8 For the present invention Figure 4 Enlarged view of a portion of point A in the middle;

[0034] Figure 9 This is a schematic diagram of the first stainless steel mudguard structure of the present invention;

[0035] Figure 10 This is a schematic diagram of the first reinforcing component structure of the present invention;

[0036] Figure 11 This is a schematic diagram of the second stainless steel mudguard structure of the present invention;

[0037] Figure 12 This is a front view of the second stainless steel mudguard of the present invention;

[0038] Figure 13 This is a schematic diagram of the third stainless steel mudguard structure of the present invention;

[0039] Figure 14 This is a schematic diagram of the third reinforcing component structure of the present invention.

[0040] Legend:

[0041] 1. Base; 101. Base plate; 102. Machining table; 2. Support column; 3. Multi-axis welding machine; 4. Mounting seat; 401. Mounting table; 402. Rectangular groove; 403. First guide rail; 5. Fixed seat; 6. Support table; 7. Pressing assembly; 701. Multi-axis robot; 702. Connecting box; 703. First drive motor; 704. Pressure rod; 705. Spring; 706. Elastic pressure plate; 8. Limiting assembly; 801. Limiting platform; 802. First fixed frame; 803. Sleeve; 804. Fixed rod; 805. Adjusting rod; 806. Connecting rod; 807. Adjusting gear; 808. Rack plate; 809. First electric telescopic rod; 9. Sliding assembly; 901. Fixed... 902. Fixed platform; 903. Second electric telescopic rod; 904. Movable platform; 905. Second guide rail; 906. Magnetic suction plate; 907. Third electric telescopic rod; 908. Mounting plate; 909. Roller; 9000. Contact sensor; 10. Stainless steel mudguard; 11. First reinforcing assembly; 1101. Torque-resistant reinforcing frame; 1102. Positioning rod; 12. Second reinforcing assembly; 1201. First reinforcing rib; 1202. Second reinforcing rib; 1203. Annular reinforcing rib; 13. Third reinforcing assembly; 1301. Rectangular frame; 1302. Cross reinforcing frame; 1303. Circular ring; 1304. Y-shaped reinforcing frame; 14. Electromagnet; 15. Adjustment groove; 16. Second drive motor. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] like Figure 1 - Figure 14As shown, a stainless steel mudguard includes a stainless steel mudguard 10. The stainless steel mudguard 10 is provided with a first reinforcing component 11, a second reinforcing component 12, or a third reinforcing component 13. The stainless steel mudguard 10 is welded to the first reinforcing component 11 to form a first stainless steel mudguard; the stainless steel mudguard 10 is welded to the second reinforcing component 12 to form a second stainless steel mudguard; and the stainless steel mudguard 10 is welded to the third reinforcing component 13 to form a third stainless steel mudguard. The first reinforcing component 11 includes a torque-resistant reinforcing frame 1101, which has an X-shaped structure. Positioning rods 1102 are welded and fixed to both ends of the torque-resistant reinforcing frame 1101. The second reinforcing component 12 includes multiple first reinforcing ribs 1201 equidistantly distributed on the upper surface of the stainless steel mudguard 10. The multiple first reinforcing ribs 1201 have a semi-circular cross-section. Multiple second reinforcing ribs 1202 are welded and fixed between two adjacent first reinforcing ribs 1201 located at both ends of the stainless steel mudguard 10. The two adjacent second reinforcing ribs 1202 are arranged in a V-shape or inverted V-shape. Annular reinforcing ribs 1203 are also fixed at both ends of the stainless steel mudguard 10. The cross section of the annular reinforcing ribs 1203 is an upwardly curved arc. The third reinforcing component 13 includes a rectangular frame 1301 welded and fixed to the upper surface of the stainless steel mudguard 10. A cross reinforcing frame 1302 is welded and fixed inside the rectangular frame 1301. Multiple mounting holes are opened through the stainless steel mudguard 10. A ring 1303 is welded and fixed to the upper surface of the stainless steel mudguard 10 at the position corresponding to the multiple mounting holes. Multiple radial Y-shaped reinforcing frames 1304 are welded and fixed to the periphery of the multiple rings 1303.

[0044] As a technical optimization of the present invention, a welding auxiliary tool for stainless steel mudguards includes a base 1, which specifically includes a base plate 101. Support columns 2 are fixedly installed at the four corners of the base plate 101. The upper ends of the four support columns 2 are fixedly connected to a multi-axis welding machine 3. A processing table 102 and a mounting seat 4 are also fixedly installed on the upper surface of the base plate 101. The mounting seat 4 specifically includes a mounting platform 401. A first guide rail 403 is provided on the upper surface of the mounting platform 401. An electric slide table and an electric slide rail are provided inside the first guide rail 403. A rectangular groove 402 is provided at the lower end of the outer wall of the mounting platform 401. An adjustment groove 15 is provided on the upper surface of the processing table 102. Two sets of symmetrically arranged sliding components 9 are slidably installed inside the adjustment groove 15. A limit component 8 is movably installed on the sliding component 9. A fixed seat 5 is fixedly installed in the middle position of the adjustment groove 15. Two sets of pressing components 7 that are used in conjunction with the multi-axis welding machine 3 are slidably installed on the upper surface of the mounting seat 4.

[0045] The adjusting groove 15 has two symmetrically arranged sliding seats slidably installed inside. The sliding assembly 9 specifically includes a fixed platform 901 fixedly connected to the sliding seats. A movable platform 903 is connected to the end of the fixed platform 901. Both the movable platform 903 and the fixed platform 901 include comb teeth, which cross each other to form a sliding fit. A second electric telescopic rod 902 is fixedly installed on the upper surface of the fixed platform 901 away from the movable platform 903. A limiting platform 801 is fixedly installed at the output end of the second electric telescopic rod 902, and the bottom surface of the limiting platform 801 is slidably connected to the upper surface of the movable platform 903. First fixing frames 802 are fixedly installed on both sides of the upper surface of the limiting platform 801. A sleeve 803 is rotatably installed between the two first fixing frames 802. An adjusting gear 807 is fixedly installed in the middle of the sleeve 803. Two sets of fixing rods 804 are fixedly installed on the outer wall of the sleeve 803, and the two sets of fixing rods 804 are perpendicular to each other. 4. Adjusting rods 805 are slidably connected to each other. Each set of multiple adjusting rods 805 is fixedly connected to a connecting rod 806 at the end. The outer wall of the connecting rod 806 is covered with an elastic soft pad. The fixed rod 804 and the adjusting rod 805 are pulled out relative to each other along the axial direction and the combined length is adjusted by a limiting structure. The limiting structure can be a bending spring on the adjusting rod 805 and a multi-level slot on the outer wall of the fixed rod 804. When sliding relative to each other, the spring falls into different slots to adjust the gear. The upper surface of the limiting platform 801 is provided with a clearance groove below the adjusting gear 807. A rack plate 808 that meshes with the adjusting gear 807 is slidably installed inside the clearance groove. A first electric telescopic rod 809 is also fixedly installed inside the clearance groove. The output end of the first electric telescopic rod 809 is fixedly connected to the rack plate 808. The rack plate 808 is slidably driven to slide inside the clearance groove by the extension and retraction of the output end of the first electric telescopic rod 809, thereby driving the sleeve 803 to rotate.

[0046] When feeding the stainless steel mudguard 10, the output ends of the two second electric telescopic rods 902 are uniformly extended under the control of the PLC controller. Under the action of the second electric telescopic rods 902, the limiting platform 801 is pushed to slide along the second guide rail 904 on the movable platform 903. When the electromagnet 14 at the end of the limiting platform 801 contacts the magnetic plate 905, the electromagnet 14 is energized and tightly attracted to the magnetic plate 905. The second electric telescopic rods 902 continue to push the limiting platform 801 outward. At this time, relative sliding occurs between the movable platform 903 and the fixed platform 901. When the mounting plate 907 slides outside the base plate 101, the output end of the third electric telescopic rod 906 extends, causing the bottom surface of the mounting plate 907 to contact the ground. With the cooperation of the third electric telescopic rod 906 and the mounting plate 907, the end of the movable platform 903 is pushed outward. The two sets of limiting components 8 slide to the outside of the base 1 along with the movable platform 903, so that the staff can load the stainless steel mudguard 10 outside the base plate 101 without interference from the support column 2. After the stainless steel mudguard 10 is loaded and supported between the two sets of limiting components 8, the output end of the second electric telescopic rod 902 shortens to slide the limiting platform 801 and the movable platform 903 back to the initial position. When the limiting platform 801 moves into the device, the third electric telescopic rod 906 shortens simultaneously to avoid interference with the sliding of the movable platform 903 and the limiting platform 801. The combined length between the fixed rod 804 and the adjusting rod 805 in the limiting component 8 can be manually adjusted, so that the limiting component 8 can be used to support stainless steel mudguards 10 with different end arc radii.

[0047] As a technical optimization of the present invention, a third electric telescopic rod 906 is fixedly installed on the bottom surface of the movable platform 903 away from the fixed platform 901. An installation plate 907 is fixedly installed on the output end of the third electric telescopic rod 906. Two symmetrically arranged grooves are opened on the bottom surface of the installation plate 907, and multiple rollers 908 are rotatably installed inside the grooves. When the movable platform 903 extends to the outside of the base 1, the output end of the third electric telescopic rod 906 extends and cooperates with the installation plate 907 to support the movable platform 903, ensuring that the two sets of limiting components 8 and sliding components 9 can still stably support the stainless steel mudguard 10 outside the base 1.

[0048] As a technical optimization of the present invention, the pressing component 7 includes a multi-axis manipulator 701. The multi-axis manipulator 701 slides on the upper surface of the mounting base 4 through the cooperation of an electric slide rail and an electric slide table. A connecting box 702 is rotatably mounted at the end of the multi-axis manipulator 701. A first drive motor 703 is fixedly mounted on the outer wall of the end of the connection between the multi-axis manipulator 701 and the connecting box 702. Two symmetrically arranged pressure rods 704 are slidably mounted on the lower end of the connecting box 702. The bottom surfaces of the two pressure rods 704 are both fixed. An elastic pressure plate 706 is fixedly installed, and a spring 705 is sleeved on the outer wall of the pressure rod 704. One end of the spring 705 is fixed to the upper surface of the elastic pressure plate 706, and the other end is fixedly connected to the bottom surface of the connecting box 702. The multi-axis manipulator 701 is a common six-axis multi-joint robot, such as the Elite CS612AZ. The multi-axis manipulator 701 drives the pressure rod 704 and the elastic pressure plate 706 to move, which can satisfy the requirement of pressing the welded structures set at various positions on the outer surface and back of the stainless steel mudguard 10.

[0049] As a technical optimization of the present invention, a magnetic suction plate 905 is fixedly installed on the upper surface of the movable platform 903 away from the fixed platform 901, and an electromagnet 14 that works in conjunction with the magnetic suction plate 905 is fixedly installed on the outer wall of the limiting platform 801; when the electromagnet 14 contacts the magnetic suction plate 905, the electromagnet 14 can be tightly attracted and connected to the magnetic suction plate 905 after being energized, so that the limiting platform 801 and the movable platform 903 are combined to form a whole and move synchronously.

[0050] As a technical optimization of the present invention, a bidirectional lead screw is rotatably installed inside the adjusting groove 15. The bidirectional lead screw is threadedly connected to two sliding seats inside the adjusting groove 15. A second drive motor 16 is fixedly installed on the outer wall of the processing table 102 corresponding to the end of the bidirectional lead screw. The output end of the second drive motor 16 is fixedly connected to the end of the bidirectional lead screw. The bidirectional lead screw is driven to rotate by the second drive motor 16. The two sliding seats located inside the adjusting groove 15 are matched with the adjusting groove 15. That is, the adjusting groove 15 can limit the sliding seats. Under the action of threaded transmission, the two sliding seats can move closer to each other or further away from each other. By adjusting the two sliding seats in conjunction with the two sets of limiting components 8, the device can have two limiting support methods for the stainless steel mudguard 10.

[0051] As a technical optimization of the present invention, a support platform 6 is movably installed on the upper surface of the fixed base 5. The support platform 6 specifically includes a fourth electric telescopic rod and a rectangular plate. The fixed base 5 and the support platform 6 are detachably connected. Depending on the different positions of the stainless steel mudguard 10 during welding, the support platform 6 with different ranges can be replaced to support the middle section of the stainless steel mudguard 10.

[0052] As a technical optimization of the present invention, contact sensors 909 are provided on both outer walls of the fixed end of the third electric telescopic rod 906. The contact sensor 909 specifically includes a trigger and a piezoelectric sensing component, wherein the trigger and the piezoelectric sensing component are fixedly installed at corresponding positions on the outer walls of the third electric telescopic rod 906 and the processing table 102, respectively. When the electromagnet 14 contacts the magnetic suction plate 905, the electromagnet 14 is energized and tightly attracted to the magnetic suction plate 905. When the limiting table 801 and the movable table 903 slide back into the base 1, the contact sensor 909 transmits an electrical signal to the controller, and then the controller de-energizes the electromagnet 14, thereby separating the limiting table 801 from the movable table 903.

[0053] As a technical optimization of the present invention, a Hall sensor is fixedly installed at the middle position of the outer wall of the limiting stage 801, and a magnet is fixedly installed on the outer wall of the fixing stage 901 directly below the Hall sensor; through the inductive cooperation between the Hall sensor and the magnet, it is used to indicate whether the limiting stage 801 has been reset to the initial position after loading, thereby improving the accuracy when the two sets of limiting components 8 are used in conjunction with the multi-axis welding machine 3.

[0054] As a technical optimization of the present invention, a second guide rail 904 is provided on the upper surface of the movable platform 903, and the limiting platform 801 slides along the second guide rail 904; the second guide rail 904 can limit the limiting platform 801 and at the same time enhance the connection between the limiting platform 801 and the movable platform 903.

[0055] Working principle of the invention:

[0056] In use, the stainless steel mudguard 10, after being stamped and bent, is placed in front of two sets of limiting components 8 for support. The stainless steel mudguard 10 can be welded using a multi-axis welding machine 3, a common existing technology. A Yaskawa AR1440 welding device can be selected. When feeding the stainless steel mudguard 10, the output ends of the two second electric telescopic rods 902 are uniformly extended under the control of the PLC controller. Under the action of the second electric telescopic rods 902, the limiting platform 801 is pushed to slide along the second guide rail 904 on the movable platform 903. When the electromagnet 14 at the end of the limiting platform 801 contacts the magnetic plate 905, the electromagnet 14 is energized and tightly attracts the magnetic plate 905. The second electric telescopic rod 902 continuously pushes the limiting platform 801 outward. At this time, a force is generated between the movable platform 903 and the fixed platform 901. When the mounting plate 907 slides to the outside of the base plate 101, the output end of the third electric telescopic rod 906 extends, causing the bottom surface of the mounting plate 907 to contact the ground. With the cooperation of the third electric telescopic rod 906 and the mounting plate 907, the end of the movable platform 903 is supported. At this time, the two sets of limiting components 8 slide to the outside of the base 1 along with the movable platform 903, making it convenient for the staff to load the stainless steel mudguard 10 outside the base plate 101 without interference from the support column 2. After the stainless steel mudguard 10 is loaded and supported and limited between the two sets of limiting components 8, the output end of the second electric telescopic rod 902 shortens to slide the limiting platform 801 and the movable platform 903 back to the initial position. When the limiting platform 801 moves into the device, the third electric telescopic rod 906 shortens synchronously to avoid interference with the sliding of the movable platform 903 and the limiting platform 801.

[0057] The placement position of the stainless steel mudguard 10 is adjusted according to the location of the reinforcing components on it. The limiting components 8 can rotate and adjust according to the placement position of the stainless steel mudguard 10. After the two sets of limiting components 8 limit the stainless steel mudguard 10, the structures contained within the first reinforcing component 11, the second reinforcing component 12, and the third reinforcing component 13 can be loaded onto the stainless steel mudguard 10 by an external intelligent multi-axis robotic arm 701 (multi-purpose SCARA robot) or manually by the operator. Then, under the combined action of the two sets of pressing components 7, the reinforcing structures contained within the first reinforcing component 11, the second reinforcing component 12, and the third reinforcing component 13 are pressed together, facilitating the welding of the reinforcing components on the stainless steel mudguard 10 by the multi-axis welding machine 3. The multi-axis manipulator 701 included in the pressing component 7 can slide along the upper surface of the mounting base 4. The two sets of pressing components 7 are set off one after the other on the mounting base 4. The positions of the two sets of pressing components 7 are adjusted by the cooperation of the electric slide table and the electric slide rail. For example, when the anti-torque reinforcing frame 1101 included in the first reinforcing component 11 is placed on the stainless steel mudguard 10, the first drive motor 703 set at the end of the multi-axis manipulator 701 drives the connecting box 702 to rotate, so that the pressure rod 704 installed at the bottom of the connecting box 702 can press the welding position of the anti-torque reinforcing frame 1101 vertically. Then, the multi-axis welding machine 3 is used to weld the anti-torque reinforcing frame 1101 to avoid the anti-torque reinforcing frame 1101 shaking during the welding process, which would affect the welding accuracy.

[0058] The limiting component 8 is adjusted according to the shape of the stainless steel mudguard 10. The stainless steel mudguard 10 is a 304 stainless steel plate formed by stamping, with a rectangular straight plate in the middle and curved arc-shaped plates at both ends. The arc-shaped structure at both ends of the stainless steel mudguard 10 is adapted to the truck tire. Depending on the usage, such as on long-distance highways, the stainless steel mudguard 10 needs to withstand high-frequency low-amplitude vibration and airflow impact during use. The fracture point is usually at the connection between the mounting bracket and the mudguard. A rectangular frame 1301 is welded to the upper surface of the stainless steel mudguard 10 to reinforce it. At the same time, multiple cross-shaped reinforcing frames 1302 are welded and fixed inside the rectangular frame 1301 to divide the upper surface of the stainless steel mudguard 10 into a grid. Then, at the mounting hole where the stainless steel mudguard 10 connects to the truck's connecting parts... The welding ring 1303 strengthens the structure at the mounting hole, and Y-shaped reinforcing frames 1304 are radially distributed on the periphery of the ring 1303 to focus on strengthening the mounting hole on the stainless steel mudguard 10. The grid structure can greatly improve the overall rigidity, disperse the high-frequency vibration energy, and avoid stress concentration on a single point. Therefore, when feeding the stainless steel mudguard 10, the rack plate 808 is driven to slide by the first electric telescopic rod 809, which in turn drives the sleeve 803 to rotate, so that the two sets of limiting components 8 are rotated and adjusted to the position with the angle facing outward as shown in the mounting seat 4. The multiple fixing rods 804 and adjusting rods 805 on the same set of limiting components 8 can support the bottom end of the stainless steel mudguard 10 and the upper half of the stainless steel mudguard 10, which facilitates the multi-axis welding machine 3 to weld the third reinforcing component 13 on the upper surface of the stainless steel mudguard 10.If the stainless steel mudguard 10 is used in complex road conditions such as mines and construction sites, the mudguard is easily struck by large pieces of gravel kicked up by vehicle wheels. The failure mode is local denting or bending deformation. In this case, multiple equidistant first reinforcing ribs 1201 are welded to the upper surface of the stainless steel mudguard 10 to enhance the overall strength of the stainless steel mudguard 10 and absorb the energy of point impacts. In addition, multiple second reinforcing ribs 1202 are welded between adjacent first reinforcing ribs 1201 in the lower half of both ends of the stainless steel mudguard 10 to form a "grid"-like local reinforcement. Annular reinforcement is also provided at the bottom of both ends of the stainless steel mudguard 10. Rib 1203, as a natural annular reinforcing rib, prevents the bottom from tearing due to scratches. In this case, the second reinforcing component 12 is still located on the outer surface of the stainless steel mudguard 10. The limiting and supporting method of the two sets of limiting components 8 for the stainless steel mudguard 10 is the same as in the previous case. It is worth mentioning that when welding the outer surface of the arc-shaped structure at both ends of the stainless steel mudguard 10, the two sets of pressing components 7 slide to one end of the stainless steel mudguard 10 at the same time. Then, the end of the multi-axis robot 701 equipped with the connecting box 702 can rotate at multiple angles so that the connecting box 702 is rotated to be perpendicular to the tangential surface of the outer surface of the arc-shaped structure. Two sets of connecting boxes 702 can respectively press and fix the two ends of the same first reinforcing rib 1201 or second reinforcing rib 1202. By cooperating with the two sets of pressing components 7 and the multi-axis welding machine 3, the second reinforcing component 12 can be welded on the outer surface of the stainless steel mudguard 10. If the stainless steel mudguard 10 is used in the middle section of a semi-trailer and is a large-span, extra-long mudguard, the first reinforcing component 11 is set on the back of the stainless steel mudguard 10 to prevent the middle part of the plate from sagging due to its own weight and from twisting and deformation caused by crosswinds or passing airflow. In this case, the stainless steel mudguard 10 needs to be kept with the back facing upwards during the welding process. By adjusting the angles of the two sets of limiting components 8 so that they face inwards relative to each other, as shown in the pressing component 7, the two sets of limiting components 8 support and limit the arc-shaped structures at both ends of the stainless steel mudguard 10. At this time, the back of the stainless steel mudguard 10 faces upwards, facilitating the cooperation between the multi-axis welding machine 3 and the pressing component 7 to weld the first reinforcing component 11 to the back of the middle section of the stainless steel mudguard 10. Similarly, during the welding of the first reinforcing component 11, the two sets of pressing components 7 are used to press the anti-torque reinforcing frame 1101 and the positioning rod 1102 together, thus welding the first reinforcing component 11 onto the back of the stainless steel mudguard 10. With the assistance of this device, the stainless steel mudguard 10 can be welded with the first reinforcing component 11, the second reinforcing component 12, or the third reinforcing component 13 to form a third stainless steel mudguard suitable for highways, a second stainless steel mudguard suitable for mines and construction sites, and a first stainless steel mudguard suitable for large-span semi-trailer trucks.

[0059] During the welding process of the stainless steel mudguard 10, the user can replace the support platform 6 installed on the fixing seat 5 according to whether the outer surface of the stainless steel mudguard 10 is facing up or the back is facing up. The middle section of the stainless steel mudguard 10 is supported by the support platforms 6 with different ranges.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A welding aid for a stainless steel mudguard, comprising a base (1), characterized in that: The base (1) specifically includes a base plate (101), on which multiple support columns (2) are fixedly installed. The upper ends of the multiple support columns (2) are fixedly connected to a multi-axis welding machine (3). A processing table (102) and a mounting seat (4) are also fixedly installed on the upper surface of the base plate (101). An adjustment groove (15) is provided on the upper surface of the processing table (102). Two sets of sliding components (9) are slidably installed inside the adjustment groove (15). A limit component (8) is provided on the sliding component (9). A fixed seat (5) is fixedly installed in the middle position of the adjustment groove (15). Two sets of pressing components (7) that are used in conjunction with the multi-axis welding machine (3) are slidably installed on the upper surface of the mounting seat (4). The adjusting groove (15) has two symmetrically arranged sliding seats slidably installed inside. The sliding assembly (9) specifically includes a fixed platform (901) fixedly connected to the sliding seats. The end of the fixed platform (901) is connected to a movable platform (903). A second electric telescopic rod (902) is fixedly installed on the upper surface of the fixed platform (901) away from the movable platform (903). A limiting platform (801) is fixedly installed at the output end of the second electric telescopic rod (902). The bottom surface of the limiting platform (801) is slidably connected to the upper surface of the movable platform (903). A first fixing frame (802) is fixedly installed on both sides of the upper surface of the limiting platform (801). A sleeve (803) is rotatably installed between the two first fixing frames (802). An adjusting gear (807) is fixedly installed in the middle position of the sleeve (803). Two sets of fixing rods (804) are fixedly installed on the outer wall of the sleeve (803). The two sets of fixing rods (804) are perpendicular to each other. An adjusting rod (805) is slidably connected to each set of fixing rods (804). A connecting rod (806) is fixedly connected to the end of each set of multiple adjusting rods (805). A clearance groove is opened on the upper surface of the limiting platform (801) below the adjusting gear (807). A rack plate (808) that meshes with the adjusting gear (807) is slidably installed inside the clearance groove. A first electric telescopic rod (809) is also fixedly installed inside the clearance groove. The output end of the first electric telescopic rod (809) is fixedly connected to the rack plate (808). A magnetic plate (905) is fixedly installed on the upper surface of the end of the movable platform (903) away from the fixed platform (901), and an electromagnet (14) that works in conjunction with the magnetic plate (905) is fixedly installed on the outer wall of the limiting platform (801).

2. The welding fixture for a stainless steel mudguard according to claim 1, characterized in that: A third electric telescopic rod (906) is also fixedly installed on the bottom surface of the movable platform (903) away from the fixed platform (901). An installation plate (907) is fixedly installed on the output end of the third electric telescopic rod (906). Two symmetrically arranged grooves are opened on the bottom surface of the installation plate (907). Multiple rollers (908) are rotatably installed inside the grooves.

3. The welding fixture for a stainless steel mudguard according to claim 2, characterized in that: The mounting base (4) specifically includes a mounting platform (401), the upper surface of the mounting platform (401) is provided with a first guide rail (403), and the lower end of the outer wall of the mounting platform (401) is provided with a rectangular groove (402). The pressing assembly (7) includes a multi-axis manipulator (701), which slides on the upper surface of the mounting base (4). A connecting box (702) is rotatably mounted at the end of the multi-axis manipulator (701). A first drive motor (703) is fixedly mounted on the outer wall of the end where the multi-axis manipulator (701) connects to the connecting box (702). Two symmetrically arranged pressure rods (704) are slidably mounted on the lower end of the connecting box (702). An elastic pressure plate (706) is fixedly mounted on the bottom surface of each of the two pressure rods (704). A spring (705) is sleeved on the outer wall of the pressure rod (704). One end of the spring (705) is fixed to the upper surface of the elastic pressure plate (706), and the other end is fixedly connected to the bottom surface of the connecting box (702).

4. The welding fixture for a stainless steel mudguard according to claim 3, characterized in that: A bidirectional lead screw is rotatably installed inside the adjustment groove (15). The bidirectional lead screw is threadedly connected to two sliding seats inside the adjustment groove (15). A second drive motor (16) is fixedly installed on the outer wall of the processing table (102) at the corresponding position of the end of the bidirectional lead screw. The output end of the second drive motor (16) is fixedly connected to the end of the bidirectional lead screw.

5. The welding fixture for a stainless steel mudguard according to claim 4, characterized in that: A support platform (6) is movably mounted on the upper surface of the fixed base (5). The support platform (6) specifically includes a fourth electric telescopic rod and a rectangular plate.

6. The welding fixture for a stainless steel mudguard according to claim 5, characterized in that: A contact sensor (909) is provided on the outer wall of the fixed end of the third electric telescopic rod (906). The contact sensor (909) specifically includes a trigger and a piezoelectric sensing component, wherein the trigger and the piezoelectric sensing component are respectively fixedly installed at the corresponding positions on the outer wall of the third electric telescopic rod (906) and the processing table (102).

7. The welding fixture for a stainless steel mudguard according to claim 6, characterized in that: A Hall sensor is fixedly installed at the middle position of the outer wall of the limiting platform (801), and a magnet is fixedly installed on the outer wall of the fixing platform (901) directly below the Hall sensor.

8. The welding fixture for a stainless steel mudguard according to claim 7, characterized in that: The upper surface of the movable platform (903) is provided with a second guide rail (904), and the limiting platform (801) slides along the second guide rail (904).

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