Welding manufacturing process of automobile B column and patch plate

Abstract

The invention relates to the technical field of automobile accessories, in particular to an automobile B column and patch plate welding manufacturing process which comprises a welding table, a fixing assembly, a positioning assembly and a sliding assembly, and the top of the welding table is provided with the fixing assembly used for fixing an automobile B column; the fixing assembly is internally provided with a stepped threaded piece used for moving the patch plate up and down, the top of the welding table is provided with a positioning assembly used for positioning the patch plate in the automobile B column, and the top of the welding plate is provided with a sliding assembly used for being matched with the fixing assembly to put the patch plate into the automobile B column. The fixing assembly is started, the patch plate is placed through the sliding assembly and the stepped threaded part, and meanwhile the positioning assembly is used for being matched with the sliding assembly to place the patch plate in the automobile B column.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, in particular to a welding manufacturing process for an automobile B-pillar and a patch plate. Background Art

[0002] The B-pillar is part of the car body structure, which refers to the pillar between the front and rear doors of the vehicle. It is usually located behind the second row of seats or above the heads of the rear passengers. The main function of the B-pillar is to support the roof, protect the occupants from impact from above, and enhance the rigidity of the vehicle. When the vehicle rolls over or other accidents occur, the strength of the B-pillar is crucial to protect the safety of the occupants.

[0003] Among them, in order to improve the strength and stability of the B-pillar, high-strength steel plates, aluminum alloys and other materials are usually used for its manufacture, and the patch plate is fixedly connected to the B-pillar body through a welding process. The patch plate is generally in contact with the inner wall of the B-pillar, while the inside of the B-pillar is an irregular shape. When welding the two, it is first necessary to ensure that the B-pillar and the patch plate can be accurately positioned to fit each other, and when positioning the patch plate on the inner side of the B-pillar, shaking can easily cause deformation of the patch plate.

[0004] In view of this, we propose a welding manufacturing process for automobile B-pillar and patch plate. Summary of the invention

[0005] The object of the present invention is to provide a welding manufacturing process for an automobile B-pillar and a patch plate to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides a welding manufacturing process for an automobile B-pillar and a patch plate, comprising the following steps:

[0007] S1. Prepare the B-pillars, patch plates and welding tools of the automobiles that have been manufactured and matched with the models, and check whether there is oil stain, rust or other impurities on the surface;

[0008] S2. Then fix the B-pillar and the welding plate in specific fixtures respectively, and accurately position and clamp them;

[0009] S3. After positioning and clamping, and before formal welding, preheat the contact surface between the B-pillar and the patch plate;

[0010] S4. Welding can be carried out after preheating. According to the requirements of the welding process, select the appropriate welding method and parameters for welding;

[0011] S5. Finally, after welding is completed, the weld is reinforced as needed;

[0012] Among them, in S2, the B-pillar of the automobile is fixed and the patch plate is positioned by a welding table. The top of the welding table is provided with a fixing component for fixing the B-pillar of the automobile, and the fixing component is provided with a stepped threaded member for moving the patch plate up and down. The top of the welding table is provided with a positioning component for positioning the patch plate in the B-pillar of the automobile, and the top of the welding plate is provided with a sliding component for cooperating with the fixing component to put the patch plate into the B-pillar of the automobile, wherein:

[0013] The patch plate is placed by starting the fixing assembly and using the sliding assembly and the stepped screw piece, and the positioning assembly is used to cooperate with the sliding assembly to place the patch plate in the B-pillar of the car.

[0014] As a preferred embodiment of the present invention, the top of the welding table is fixedly connected to a limiting table, the center position of the top of the welding table is fixedly connected to a placing table, the limiting table is located between the placing table and the fixed component and the sliding component, the welding table is slidably connected to a sliding table on both sides of the placing table, the two sides of the sliding table are fixedly connected to a fixed frame, the fixed frame is provided with a slide rail on the top of one end away from the sliding table, and the slide rail is fixedly connected to the top of the welding table through a plurality of columns, wherein:

[0015] The bottom of the slide rail is slidably connected with a second slide rod.

[0016] As a preferred embodiment of the present invention, a sliding block is fixedly connected to the bottom of the sliding platform, a No. 1 rotating rod is arranged on the inner side of the sliding block, a thread groove is provided on the middle end of the No. 1 rotating rod, the No. 1 rotating rod is threadedly connected to the sliding block on the outer side of the thread groove, and one end of the No. 1 rotating rod is fixedly connected to a No. 1 bevel gear, wherein:

[0017] The top of the sliding platform is slidably connected to a sliding rod No. 1, and the sliding rod No. 1 is slidably connected to the outer wall of the sliding rod No. 2 at one end away from the sliding platform.

[0018] As a preferred embodiment of the present invention, the fixed component includes a No. 1 motor, the output end of the No. 1 motor is fixedly connected to a transmission telescopic rod, the middle end outer wall of the transmission telescopic rod is fixedly connected to a circular gear, a No. 2 rotating rod is provided at the bottom of the circular gear, the No. 2 rotating rod is fixedly connected to a threaded protrusion directly below the circular gear, the circular gear is meshingly connected to the threaded protrusion, and the two ends of the No. 2 rotating rod are fixedly connected to No. 2 bevel gears, and the No. 2 bevel gears are meshingly connected to the No. 1 bevel gear.

[0019] As a preferred embodiment of the present invention, the transmission telescopic rod is divided into a thick rod part and a thin rod part, the outer wall of the thick rod part is fixedly connected to a turntable, and the thin rod part is fixedly connected to a fixing plate at one end away from the thick rod part, wherein:

[0020] The top of the welding table is fixedly connected with a partition and a No. 1 fixed column, the thin rod part is slidably connected to the inner side of the No. 1 fixed column, and the thick rod part passes through the partition.

[0021] As a preferred embodiment of the present invention, a stepped threaded component is arranged above the turntable, the outer wall of the threaded part of the stepped threaded component is matched with the outer wall width of the turntable, a No. 3 rotating rod is fixedly connected to the inner side of the stepped threaded component, the No. 3 rotating rod is rotatably connected to a thin connecting rod at the end away from the stepped threaded component, the outer wall of the thin connecting rod is fixedly connected to a snap component, the snap component is slidably connected to the inner side of a No. 1 fixed column, and the thin connecting rod is fixedly connected to a push plate at the end away from the stepped threaded component.

[0022] As a preferred embodiment of the present invention, the positioning assembly includes a No. 2 motor, the output end of the No. 2 motor is fixedly connected to a No. 4 rotating rod, the No. 4 rotating rod is fixedly connected to a rotating column at an end away from the No. 2 motor, the inner side of the rotating column is slidably connected to a No. 3 sliding rod, one end of the No. 3 sliding rod is provided with a No. 4 sliding column, the No. 3 sliding rod is rotatably connected to one side of the No. 4 sliding column, and a spring is provided on the outer wall of the No. 3 sliding rod between the No. 4 sliding column and the rotating column.

[0023] As a preferred embodiment of the present invention, the fourth sliding column is slidably connected to the outer wall of the No. 1 sliding rod, the No. 4 sliding column is telescopically connected to the No. 1 extension rod on the side away from the No. 3 sliding rod, the No. 1 extension rod is fixedly connected to a fixing piece at one end away from the No. 4 sliding column, and the top of the fixing piece is fixedly connected to an electromagnet.

[0024] As a preferred embodiment of the present invention, the sliding assembly includes a No. 2 fixed column, a slope is provided on the top of the No. 2 fixed column, a No. 2 extension rod is fixedly connected to one side of the No. 2 fixed column, a bending connecting rod is slidably connected to the outer wall of the No. 2 extension rod, a No. 4 sliding rod is provided at the end of the bending connecting rod away from the No. 2 extension rod, the No. 4 sliding rod is slidably connected to one end of the bending connecting rod, and the bending connecting rod is fixedly connected to an electric telescopic rod on the side away from the No. 4 sliding rod.

[0025] As a preferred embodiment of the present invention, a stop plate is fixedly connected to the bottom of the fourth sliding rod, and the bottom of the stop plate is in contact with the slope.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. In the welding manufacturing process of the automobile B-pillar and the patch plate, the transmission telescopic rod and the turntable rotate together under the drive of the No. 1 motor, the fixed plate is attached to one end of the B-pillar, and the electric telescopic rod extends at the same time and pushes the bending connecting rod to slide to the left on the No. 2 extension rod. At the same time, the bending connecting rod will drive the No. 4 sliding rod and the support plate to slide to the left, and the slope is used to support the other end of the automobile B-pillar on the side away from the bending connecting rod, so that the automobile B-pillar is fixed.

[0028] 2. In the welding manufacturing process of the automobile B-pillar and the patch plate, the patch plate is clamped at the bottom of the fixing part on both sides and fixed by adsorption under the action of the electromagnet. When the turntable rotates, the stepped threaded part will be driven to rotate, and the No. 3 rotating rod will be driven by the stepped threaded part to the right and move downward a short distance, so that the push plate abuts against one end of the patch plate, and the abutting plate affected by the slope also slides toward the lower left side of the slope and abuts against the other end of the patch plate to fix the patch plate.

[0029] 3. In the welding manufacturing process of the automobile B-pillar and the patch plate, the No. 4 rotating rod is driven by the No. 2 motor to rotate the rotating column and the sliding column. When the sliding column is restricted by the No. 1 sliding rod and the No. 2 sliding rod, it will slide left and right on the No. 2 sliding rod. When it slides to the leftmost or rightmost end of the No. 2 sliding rod, it will drive the sliding column to slide downward on the No. 1 sliding rod. At this time, the patch plate clamped by it cooperates with the push plate and the abutment plate to be transported to the fitting position of the B-pillar. Finally, the welding rod of the external device is used for welding. This allows the staff to fix the B-pillar and the patch plate in the device without other operations, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an overall three-dimensional schematic diagram of the welding manufacturing process of the automobile B-pillar and the patch plate of the present invention;

[0031] Figure 2 It is a cross-sectional schematic diagram of a side of the welding manufacturing process of the automobile B-pillar and the patch plate of the present invention;

[0032] Figure 3 It is a cross-sectional schematic diagram of the other side of the welding manufacturing process of the automobile B-pillar and the patch plate of the present invention;

[0033] Figure 4 It is a longitudinal cross-sectional schematic diagram of the welding manufacturing process of the automobile B-pillar and the patch plate of the present invention;

[0034] Figure 5 It is an overall three-dimensional detailed schematic diagram of the welding manufacturing process of the automobile B-pillar and the patch plate of the present invention;

[0035] Figure 6 It is a three-dimensional schematic diagram of the fixed components of the welding manufacturing process of the automobile B-pillar and the patch plate of the present invention;

[0036] Figure 7 It is a three-dimensional schematic diagram of the positioning components of the welding manufacturing process of the automobile B-pillar and the patch plate of the present invention;

[0037] Figure 8 It is an enlarged schematic diagram of part A of the welding manufacturing process of the automobile B-pillar and the patch plate of the present invention;

[0038] Fig. 9 It is a three-dimensional schematic diagram of a sliding assembly of a welding manufacturing process of a B-pillar and a patch plate of an automobile according to the present invention;

[0039] The meaning of each number in the figure is:

[0040] 1. Welding table; 11. Limiting table; 12. Placing table; 13. Sliding table; 131. Sliding block; 132. No. 1 rotating rod; 133. Threaded groove; 134. No. 1 bevel gear; 135. No. 1 sliding rod; 14. Fixed frame; 15. Slide rail; 151. No. 2 sliding rod; 2. Fixed assembly; 21. No. 1 motor; 22. Circular gear; 221. No. 2 rotating rod; 2211. Threaded protrusion; 2212. No. 2 bevel gear; 23. Transmission telescopic rod; 231. Thick rod part; 232. Thin rod part; 233. Fixed plate; 234. Turntable; 24. Partition; 25. Stepped threaded part; 251. No. 3 rotating rod; 252. Thin connecting rod; 2521. Buckle; 2522. Push plate; 26. No. 1 fixed column;

[0041] 3. Positioning assembly; 31. Motor No. 2; 32. Rotating rod No. 4; 33. Rotating column; 331. Sliding rod No. 3; 332. Spring; 34. Sliding column; 341. Extension rod No. 1; 342. Fixing piece; 3421. Electromagnet; 4. Sliding assembly; 41. Fixed column No. 2; 411. Slope; 412. Extension rod No. 2; 42. Sliding rod No. 4; 421. Abutment plate; 43. Bending connecting rod; 44. Electric telescopic rod. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0044] Embodiment 1

[0045] See also Figure 1-Figure 9 As shown, this embodiment provides a welding manufacturing process for a B-pillar and a patch plate of an automobile, comprising the following steps:

[0046] S1. Prepare the B-pillars, patch plates and welding tools of the automobiles that have been manufactured and matched with the models, and check whether there is oil stain, rust or other impurities on the surface;

[0047] S2. Then fix the B-pillar and the welding plate in specific fixtures respectively, and accurately position and clamp them;

[0048] S3. After positioning and clamping, and before formal welding, preheat the contact surface between the B-pillar and the patch plate;

[0049] S4. Welding can be carried out after preheating. According to the requirements of the welding process, select the appropriate welding method and parameters for welding;

[0050] S5. Finally, after welding is completed, the weld is reinforced as needed;

[0051] Among them, in S2, the B-pillar of the automobile is fixed and the patch plate is positioned by the welding table 1. The top of the welding table 1 is provided with a fixing component 2 for fixing the B-pillar of the automobile, and the fixing component 2 is provided with a stepped threaded part 25 for moving the patch plate up and down. The top of the welding table 1 is provided with a positioning component 3 for positioning the patch plate in the B-pillar of the automobile, and the top of the welding plate 1 is provided with a sliding component 4 for cooperating with the fixing component 2 to place the patch plate into the B-pillar of the automobile, wherein: the patch plate is placed by starting the fixing component 2 and using the sliding component 4 and the stepped threaded part 25, and the positioning component 3 is used to cooperate with the sliding component 4 to place the patch plate in the B-pillar of the automobile.

[0052] like Figure 1-Figure 5As shown, the top of the welding table 1 is fixedly connected to a limiting table 11, the top center of the welding table 1 is fixedly connected to a placing table 12, the limiting table 11 is located between the placing table 12 and the fixed component 2 and the sliding component 4, the welding table 1 is slidably connected to a sliding table 13 on both sides of the placing table 12, and fixed frames 14 are fixedly connected to both sides of the sliding table 13. The fixed frame 14 is provided with a slide rail 15 on the top of the end away from the sliding table 13, and the slide rail 15 is fixedly connected to the top of the welding table 1 through a plurality of columns, wherein: the bottom of the slide rail 15 is slidably connected to a second slide A movable rod 151, a sliding block 131 is fixedly connected to the bottom of the sliding table 13, a No. 1 rotating rod 132 is arranged on the inner side of the sliding block 131, a thread groove 133 is opened at the middle end of the No. 1 rotating rod 132, the No. 1 rotating rod 132 is threadedly connected to the sliding block 131 on the outer side of the thread groove 133, and one end of the No. 1 rotating rod 132 is fixedly connected to a No. 1 bevel gear 134, wherein: a No. 1 sliding rod 135 is slidably connected to the top of the sliding table 13, and the No. 1 sliding rod 135 is slidably connected to the outer wall of the No. 2 sliding rod 151 at the end away from the sliding table 13.

[0053] like Figure 5-Figure 6 As shown, the fixing assembly 2 includes a No. 1 motor 21, the output end of the No. 1 motor 21 is fixedly connected to a transmission telescopic rod 23, the outer wall of the middle end of the transmission telescopic rod 23 is fixedly connected to a circular gear 22, a No. 2 rotating rod 221 is arranged at the bottom of the circular gear 22, the No. 2 rotating rod 221 is fixedly connected to a threaded protrusion 2211 just below the circular gear 22, the circular gear 22 is meshingly connected to the threaded protrusion 2211, the two ends of the No. 2 rotating rod 221 are fixedly connected to a No. 2 bevel gear 2212, the No. 2 bevel gear 2212 is meshingly connected to the No. 1 bevel gear 134, the transmission telescopic rod 23 is divided into a thick rod part 231 and a thin rod part 232, the outer wall of the thick rod part 231 is fixedly connected to a turntable 234, the thin rod part 232 is fixedly connected to the end away from the thick rod part 231 A fixed plate 233 is connected, wherein: a partition 24 and a No. 1 fixed column 26 are fixedly connected to the top of the welding table 1, the thin rod part 232 is slidably connected to the inner side of the No. 1 fixed column 26, the thick rod part 231 passes through the partition 24, a stepped threaded member 25 is arranged above the turntable 234, the outer wall of the threaded part of the stepped threaded member 25 is matched with the outer wall width of the turntable 234, a No. 3 rotating rod 251 is fixedly connected to the inner side of the stepped threaded member 25, the No. 3 rotating rod 251 is rotatably connected to a thin connecting rod 252 at the end away from the stepped threaded member 25, the outer wall of the thin connecting rod 252 is fixedly connected to a snap member 2521, the snap member 2521 is slidably connected to the inner side of the No. 1 fixed column 26, and the thin connecting rod 252 is fixedly connected to a push plate 2522 at the end away from the stepped threaded member 25.

[0054] like Fig. 9As shown, the sliding assembly 4 includes a No. 2 fixed column 41, a slope 411 is provided on the top of the No. 2 fixed column 41, a No. 2 extension rod 412 is fixedly connected to one side of the No. 2 fixed column 41, a bending link 43 is slidably connected to the outer wall of the No. 2 extension rod 412, a No. 4 sliding rod 42 is provided at the end of the bending link 43 away from the No. 2 extension rod 412, the No. 4 sliding rod 42 is slidably connected to one end of the bending link 43, the bending link 43 is fixedly connected to an electric telescopic rod 44 on the side away from the No. 4 sliding rod 42, and a support plate 421 is fixedly connected to the bottom of the No. 4 sliding rod 42, and the bottom of the support plate 421 is in contact with the slope 411.

[0055] It can be seen from this that when the B-pillar of the car is placed and fixed, Figure 6 As shown, the staff first places the B-pillar of the car on the placement platform 12 and the limit platform 11, and the transmission telescopic rod 23 is rotated under the drive of the first motor 21. At the same time, the transmission telescopic rod 23 is extended through the thread on the thin rod part 232 and drives the turntable 234 to rotate. At this time, the fixing plate 233 is attached to one end of the B-pillar. When the first motor 21 is started, Fig. 9 As shown, the electric telescopic rod 44 simultaneously extends and pushes the bending link 43 to slide to the left on the second extension rod 412, and the bending link 43 drives the fourth sliding rod 42 and the abutment plate 421 to slide to the left, until the bending link 43 abuts against one end of the slope 411, and the slope 411 is pushed to the left for a short distance, so that the slope 411 abuts against the other end of the car B-pillar on the side away from the bending link 43, so that the car B-pillar is fixed. Because the car B-pillar is a shell with a hollow interior, it is easy to deform due to excessive extrusion after subsequent preheating. Therefore, when fixing it, the two-point fixation is more evenly stressed, and the B-pillar is not easy to deform.

[0056] like Figure 6 As shown, the staff clamps the two sides of the patch plate at the bottom of the fixing member 342, and fixes it under the action of the electromagnet 3421. At the same time, the rotating disk 234 rotates and drives the stepped thread member 25 to rotate, and the stepped thread member 25 will continue to slide to the right from the larger diameter part to the smaller diameter part. At this time, the third rotating rod 251 will be driven by the stepped thread member 25 to move a short distance to the right and downward, so that the push plate 2522 is against one end of the patch plate. Fig. 9 As shown, the abutment plate 421 affected by the slope 411 also slides toward the lower left side of the slope 411 and abuts against the other end of the patch plate to fix the patch plate.

[0057] Embodiment 2

[0058] Different from the first embodiment, in order to realize the positioning of the patch plate after the B-pillar of the automobile is fixed, as shown in FIG. Figure 7-Figure 8As shown, the positioning assembly 3 includes a No. 2 motor 31, the output end of the No. 2 motor 31 is fixedly connected to the No. 4 rotating rod 32, the No. 4 rotating rod 32 is fixedly connected to a rotating column 33 at one end away from the No. 2 motor 31, the inner side of the rotating column 33 is slidably connected to the No. 3 sliding rod 331, one end of the No. 3 sliding rod 331 is provided with a No. 4 sliding column 34, the No. 3 sliding rod 331 is rotatably connected to one side of the No. 4 sliding column 34, and a spring 332 is provided on the outer wall of the No. 3 sliding rod 331 at this end between the No. 4 sliding column 34 and the rotating column 33.

[0059] like Figure 8 As shown, the fourth sliding column 34 is slidably connected to the outer wall of the No. 1 sliding rod 135, and the No. 4 sliding column 34 is telescopically connected to the No. 1 extension rod 341 on the side away from the No. 3 sliding rod 331, and the No. 1 extension rod 341 is fixedly connected to a fixing member 342 at one end away from the No. 4 sliding column 34, and the top of the fixing member 342 is fixedly connected to an electromagnet 3421.

[0060] It can be seen from this that after fixing the car B-pillar, the patch plate needs to be positioned and fixed. Figure 7-Figure 8 As shown, the fourth rotating rod 32 rotates under the drive of the second motor 31, and drives the sliding rod 34 to rotate through the rotating column 33. When the sliding rod 34 is restricted by the first sliding rod 135 and the second sliding rod 151, it will slide left and right on the second sliding rod 151. When sliding to the leftmost or rightmost end of the second sliding rod 151, it will drive the sliding rod 34 to slide downward on the first sliding rod 135. At this time, the patch plate clamped by it cooperates with the push plate 2522 and the abutment plate 421 to be transported to the B-pillar fitting position, and finally welded with an external welding rod, so that the staff does not need to perform other operations after fixing the B-pillar and the patch plate in the device, saving time and effort.

[0061] It should be noted that during the rotation of the circular gear 22, the threaded protrusion 2211 will drive the second rotating rod 221 to rotate, and the second bevel gear 2212 will drive the first bevel gear 134 and the first rotating rod 132 to rotate. At this time, the sliding block 131 will slide to the left or right together with the sliding table 13 under the drive of the first rotating rod 132, and in the process of moving to both sides and downward after the fixing component 2, the positioning component 3 and the sliding component 4 are fixed, the patch plate will fit with the B-pillar, and then preheat for welding.

[0062] The above shows and describes 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 by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A welding manufacturing process for a car B-pillar and a patch plate, characterized in that: The steps include: S1. Prepare the B-pillars, patch plates and welding tools of the automobiles that have been manufactured and matched with the models, and check whether there is oil stain, rust or other impurities on the surface; S2. Then fix the B-pillar and the welding plate in specific fixtures respectively, and accurately position and clamp them; S3. After positioning and clamping, and before formal welding, preheat the contact surface between the B-pillar and the patch plate; S4. Welding can be carried out after preheating. According to the requirements of the welding process, select the appropriate welding method and parameters for welding; S5. Finally, after welding is completed, the weld is reinforced as needed; In S2, the B-pillar of the automobile is fixed and the patch plate is positioned by means of a welding platform (1), the top of the welding platform (1) is provided with a fixing component (2) for fixing the B-pillar of the automobile, the fixing component (2) is provided with a stepped threaded member (25) for moving the patch plate up and down, the top of the welding platform (1) is provided with a positioning component (3) for positioning the patch plate in the B-pillar of the automobile, the top of the welding plate (1) is provided with a sliding component (4) for cooperating with the fixing component (2) to place the patch plate in the B-pillar of the automobile, wherein: The patch plate is placed by starting the fixing component (2) and using the sliding component (4) and the stepped screw member (25), and the positioning component (3) is used to cooperate with the sliding component (4) to place the patch plate in the B-pillar of the automobile.

2. The welding manufacturing process of a vehicle B-pillar and a patch plate according to claim 1 is characterized in that: The top of the welding platform (1) is fixedly connected to a limiting platform (11), the center position of the top of the welding platform (1) is fixedly connected to a placing platform (12), the limiting platform (11) is located between the placing platform (12) and the fixing component (2) and the sliding component (4), the welding platform (1) is slidably connected to a sliding platform (13) on both sides of the placing platform (12), the two sides of the sliding platform (13) are fixedly connected to a fixing frame (14), the fixing frame (14) is provided with a slide rail (15) at the top of one end away from the sliding platform (13), and the slide rail (15) is fixedly connected to the top of the welding platform (1) through a plurality of columns, wherein: The bottom of the slide rail (15) is slidably connected to a second slide rod (151).

3. The welding manufacturing process of the automobile B-pillar and the patch plate according to claim 2 is characterized in that: The bottom of the sliding platform (13) is fixedly connected to a sliding block (131), a first rotating rod (132) is arranged on the inner side of the sliding block (131), a thread groove (133) is provided on the middle end of the first rotating rod (132), the first rotating rod (132) is threadedly connected to the sliding block (131) on the outer side of the thread groove (133), and one end of the first rotating rod (132) is fixedly connected to a first bevel gear (134), wherein: The top of the sliding platform (13) is slidably connected to a first sliding rod (135), and the first sliding rod (135) is slidably connected to the outer wall of the second sliding rod (151) at one end away from the sliding platform (13).

4. The welding manufacturing process of the automobile B-pillar and the patch plate according to claim 3 is characterized in that: The fixing assembly (2) comprises a first motor (21), the output end of the first motor (21) is fixedly connected to a transmission telescopic rod (23), the middle end outer wall of the transmission telescopic rod (23) is fixedly connected to a circular gear (22), a second rotating rod (221) is arranged at the bottom of the circular gear (22), the second rotating rod (221) is fixedly connected to a threaded protrusion (2211) just below the circular gear (22), the circular gear (22) is meshingly connected to the threaded protrusion (2211), and the two ends of the second rotating rod (221) are fixedly connected to a second bevel gear (2212), and the second bevel gear (2212) is meshingly connected to the first bevel gear (134).

5. The welding manufacturing process of the automobile B-pillar and the patch plate according to claim 4 is characterized in that: The transmission telescopic rod (23) is divided into a thick rod portion (231) and a thin rod portion (232), the outer wall of the thick rod portion (231) is fixedly connected to a rotating disk (234), and the thin rod portion (232) is fixedly connected to a fixing plate (233) at one end away from the thick rod portion (231), wherein: The top of the welding platform (1) is fixedly connected to a partition (24) and a first fixing column (26); the thin rod portion (232) is slidably connected to the inner side of the first fixing column (26); and the thick rod portion (231) passes through the partition (24).

6. The welding manufacturing process of the automobile B-pillar and the patch plate according to claim 5 is characterized in that: A stepped threaded member (25) is arranged above the rotating disk (234), the outer wall of the threaded portion of the stepped threaded member (25) matches the width of the outer wall of the rotating disk (234), a third rotating rod (251) is fixedly connected to the inner side of the stepped threaded member (25), the third rotating rod (251) is rotatably connected to a thin connecting rod (252) at one end away from the stepped threaded member (25), a snap-fit ​​member (2521) is fixedly connected to the outer wall of the thin connecting rod (252), the snap-fit ​​member (2521) is slidably connected to the inner side of the first fixed column (26), and the thin connecting rod (252) is fixedly connected to a push plate (2522) at one end away from the stepped threaded member (25).

7. The welding manufacturing process of the automobile B-pillar and the patch plate according to claim 6 is characterized in that: The positioning assembly (3) includes a No. 2 motor (31), the output end of the No. 2 motor (31) is fixedly connected to a No. 4 rotating rod (32), the No. 4 rotating rod (32) is fixedly connected to a rotating column (33) at one end away from the No. 2 motor (31), the inner side of the rotating column (33) is slidably connected to a No. 3 sliding rod (331), one end of the No. 3 sliding rod (331) is provided with a No. 4 sliding column (34), the No. 3 sliding rod (331) is rotatably connected to one side of the No. 4 sliding column (34), and a spring (332) is sleeved on the outer wall of the No. 3 sliding rod (331) at the end between the No. 4 sliding column (34) and the rotating column (33).

8. The welding manufacturing process of the automobile B-pillar and the patch plate according to claim 7 is characterized in that: The fourth sliding column (34) is slidably connected to the outer wall of the first sliding rod (135); the fourth sliding column (34) is telescopically connected to the first extension rod (341) at a side away from the third sliding rod (331); the first extension rod (341) is fixedly connected to a fixing member (342) at one end away from the fourth sliding column (34); and the top of the fixing member (342) is fixedly connected to an electromagnet (3421).

9. The welding manufacturing process of a vehicle B-pillar and a patch plate according to claim 1 is characterized in that: The sliding assembly (4) includes a No. 2 fixed column (41), a slope (411) is provided on the top of the No. 2 fixed column (41), a No. 2 extension rod (412) is fixedly connected to one side of the No. 2 fixed column (41), a bending connecting rod (43) is slidably connected to the outer wall of the No. 2 extension rod (412), a No. 4 sliding rod (42) is provided at the end of the bending connecting rod (43) away from the No. 2 extension rod (412), the No. 4 sliding rod (42) is slidably connected to one end of the bending connecting rod (43), and the bending connecting rod (43) is fixedly connected to an electric telescopic rod (44) at a side away from the No. 4 sliding rod (42).

10. The welding manufacturing process of the automobile B-pillar and the patch plate according to claim 9 is characterized in that: The bottom of the fourth sliding rod (42) is fixedly connected to a support plate (421), and the bottom of the support plate (421) is in contact with the slope (411).

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