Welding tool for automobile seat framework assembly and using method of welding tool

Abstract

The invention discloses a welding tool for an automobile seat framework assembly and a using method of the welding tool, and relates to the field of welding equipment.The welding tool comprises a welding platform, an inclination angle plate used for adjusting the inclination angle of a seat back is fixedly installed at one end of the top face of the welding platform, and a first installation plate is fixedly installed on one side of the inclination angle plate; a plurality of automobile seat framework positioning assemblies are fixedly mounted at the other end of the first mounting plate and the other end of the welding platform and used for positioning and clamping an automobile seat framework, and three sets of the automobile seat framework positioning assemblies horizontally clamp the three edges of a seat face correspondingly. The clamping point positions of the five sets of automobile seat framework positioning assemblies do not affect the working path of a welding gun, so that a welding robot can conduct assembly welding on a plurality of structural parts according to a complete welding track, and therefore the automobile seat framework welding efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to a welding tool for an automobile seat frame assembly and a use method thereof. Background Art

[0002] The welding tooling is a set of flexible welding fixing, pressing and positioning fixtures, which are mainly used for welding operations of various weldable materials. When welding the car seat frame, it is necessary to use a special car seat welding tooling to fix and clamp the car seat frame, and then use welding equipment to weld the car working frame.

[0003] For example, the Chinese patent publication number is: CN217859711U, which is a welding tool for an automobile seat frame assembly, including a load-bearing plate, a tooling plate and a main switch. The load-bearing plate is fixedly connected to a support plate, the tooling plate is provided with a clamping mechanism for fixing the seat frame, the main switch includes an up and down switch, a left and right switch and a front and rear switch, and the load-bearing plate is provided with an up and down adjustment mechanism for adjusting the welding height of the seat frame; the up and down adjustment mechanism includes a first electric push rod fixedly connected to the load-bearing plate, the first electric push rod is provided with a rotating groove and is rotatably connected to a rotating rod through the rotating groove.

[0004] When assembling the car seat frame, the car seat back, seat surface and some parts to be welded need to be fixed and clamped at a certain inclination angle. Multiple parts are fixed and clamped on the welding table, which affects the working path of the welding gun, causing the welding gun to weld the car seat frame efficiently and continuously, affecting the efficiency of welding the car seat frame. Summary of the invention

[0005] The object of the present invention is to provide a welding tool for an automobile seat frame assembly and a method of using the same, so as to solve the problem proposed in the above-mentioned background technology that multiple components are fixedly clamped on the welding table, affecting the working path of the welding gun, causing the welding gun to efficiently and continuously weld the automobile seat frame, and affecting the efficiency of welding the automobile seat frame.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding tool for an automobile seat frame assembly, comprising a welding platform, one end of the top surface of the welding platform is fixedly installed with an inclined angle plate for adjusting the inclination angle of the seat back, one side of the inclined angle plate is fixedly installed with a No. 1 mounting plate, and the other end of the No. 1 mounting plate and the welding platform are fixedly installed with a plurality of automobile seat frame positioning components, and the automobile seat frame positioning components are used to position and clamp the automobile seat frame, wherein three groups of the automobile seat frame positioning components respectively clamp the three edges of the seat surface horizontally, and two groups of the automobile seat frame positioning components respectively tilt and clamp the two sides of the seat back.

[0007] Preferably, the welding platform comprises support legs, reinforcing rods and a mounting platform, the four support legs are respectively fixedly mounted at four corners of the bottom surface of the mounting platform, and the reinforcing rods are respectively fixedly mounted between two adjacent support legs.

[0008] Preferably, a load-bearing platform is fixedly mounted on one end of the top surface of the mounting platform, the inclined angle plate is fixedly mounted on the top surface of the load-bearing platform, and the plurality of automobile seat frame positioning components are fixedly mounted on the other end of the top surface of the mounting platform.

[0009] Preferably, the inclined angle plate includes a bottom plate, a base, an adjustment shaft, and an inclined plate. The two bases are respectively fixedly mounted on both sides of one end of the bottom plate, and the two ends of the adjustment shaft are respectively rotatably clamped inside the base, and the movement of the adjustment shaft passes through one end of the inclined plate.

[0010] Preferably, the driving assembly includes a No. 2 driving motor, a positioning slot is symmetrically opened on one side of the inclined plate, a clamping strip is symmetrically fixedly installed on one side of the No. 1 mounting plate, and the clamping strip is fixedly connected to the inside of the positioning slot.

[0011] Preferably, a plurality of No. 1 adjusting threaded holes are respectively opened on both sides of the base plate, and the internal threads of two of the No. 1 adjusting threaded holes are connected to a No. 1 adjusting bolt, and support clamps are provided on both sides of the base plate, and one end of the support clamp is rotatably clamped to the outer side of one end of the No. 1 adjusting bolt.

[0012] Preferably, a plurality of No. 2 adjusting threaded holes are respectively opened on both sides of the inclined plate, and the internal threads of two of the No. 2 adjusting threaded holes are connected with No. 2 adjusting bolts, and the other end of the supporting clamp is rotatably clamped on one end of the No. 2 adjusting bolt.

[0013] Preferably, the automobile seat frame positioning assembly includes a positioning frame, a mounting platform and a quick clamp, the two positioning frames are fixedly installed on the top surface of the welding platform by bolts, one side of the positioning frame is fixedly connected to the mounting platform by bolts, a No. 2 mounting plate is fixedly installed on the top surface of the mounting platform, the quick clamp is fixedly installed on the top surface of the No. 2 mounting plate, and a frame slot is fixedly installed on one side of the mounting platform.

[0014] Preferably, the clamping end of the quick clamp is fixedly connected to a multi-point clamping plate, one end of the multi-point clamping plate is fixedly connected to a plurality of upper clamping grooves, and a rubber cushion is fixedly installed inside the skeleton clamping groove.

[0015] A method for using a welding tool for an automobile seat frame assembly comprises the following steps: S1. placing a car seat seat frame between three sets of car seat frame positioning components, and the three sets of car seat frame positioning components respectively position and clamp three sides of the car seat seat frame; S2. Adjust the opening and closing angle between the bottom plate and the tilting plate in the tilting angle plate so that the tilting angle of the tilting angle plate meets the installation angle of the seat back. Pass the No. 1 adjusting bolt and the No. 2 adjusting bolt through the two ends of the supporting clamp and thread them into the No. 1 adjusting threaded hole and the No. 2 adjusting threaded hole respectively to complete the angle adjustment of the tilting angle plate. S3, placing the seat back between two sets of automobile seat frame positioning components, and the two sets of automobile seat frame positioning components respectively position and clamp the two sides of the automobile seat back frame; S4. Place the structural parts to be welded on the welding surfaces of the seat back and seat surface, start the welding robot to drive the welding gun to perform assembly welding.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the clamping points of the five groups of automobile seat frame positioning components will not affect the working path of the welding gun, so that the welding robot can assemble and weld multiple structural parts according to a complete welding trajectory, thereby improving the efficiency of welding the automobile seat frame.

[0017] 2. In the present invention, the No. 2 adjusting threaded holes at different positions represent different preset angles. When other preset angles need to be replaced, the No. 2 adjusting bolt is taken out from the No. 2 adjusting threaded hole and installed inside other No. 2 adjusting threaded holes to achieve rapid adjustment of different preset angles.

[0018] 3. In the present invention, when the automobile seat frame positioning assembly positions and clamps the automobile seat frame, the automobile seat frame is first placed inside the frame slot, and the quick clamp is bent so that the multi-point clamp plate positions and clamps the upper end of the automobile seat frame, wherein one end of the multi-point clamp plate is fixedly connected with a plurality of upper clamp slots, and the upper clamp slots and the frame slots cooperate with each other for positioning, so that only a single quick clamp is needed to clamp the automobile seat frame at multiple points, thereby reducing the equipment cost of the automobile seat frame assembly welding tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a welding tool for an automobile seat frame assembly according to the present invention; Figure 2 This is a three-dimensional structural schematic diagram of a welding platform used in a welding tool for an automobile seat frame assembly according to the present invention; Figure 3 It is a three-dimensional structural schematic diagram of an inclined angle plate used in a welding tool for an automobile seat frame assembly according to the present invention; Figure 4 A schematic diagram of the connection relationship between the inclined angle plate and the first mounting plate in a welding tool for an automobile seat frame assembly of the present invention; Figure 5It is a three-dimensional structural schematic diagram of an automobile seat frame positioning component used in an automobile seat frame assembly welding tool of the present invention; Figure 6 It is a schematic diagram of the connection relationship between the mounting platform and the frame slot in a welding tool for an automobile seat frame assembly of the present invention; Figure 7 The present invention is a three-dimensional structural schematic diagram of a quick clamp used in a welding tool for an automobile seat frame assembly.

[0020] In the figure: 1. welding platform; 11. supporting leg; 12. reinforcing rod; 13. mounting platform; 131. load-bearing platform; 2. inclined angle plate; 21. bottom plate; 211. No. 1 adjusting threaded hole; 212. No. 1 adjusting bolt; 22. base; 23. adjusting shaft; 24. inclined plate; 241. positioning slot; 242. No. 2 adjusting threaded hole; 243. No. 2 adjusting bolt; 25. supporting clamp; 3. No. 1 mounting plate; 31. clamping strip; 4. car seat frame positioning assembly; 41. positioning frame; 42. mounting platform; 421. No. 2 mounting plate; 422. frame slot; 423. rubber cushion; 43. quick clamp; 431. multi-point clamp; 432. upper clamping slot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described 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.

[0022] Example 1: Reference Figure 1 and Figure 2 As shown: a welding tool for an automobile seat frame assembly, comprising a welding platform 1, one end of the top surface of the welding platform 1 is fixedly installed with an inclined angle plate 2 for adjusting the inclination angle of the seat back, one side of the inclined angle plate 2 is fixedly installed with a No. 1 mounting plate 3, and the other end of the No. 1 mounting plate 3 and the welding platform 1 are fixedly installed with a number of automobile seat frame positioning components 4, the automobile seat frame positioning components 4 are used to position and clamp the automobile seat frame, wherein three groups of automobile seat frame positioning components 4 respectively clamp the three edges of the seat surface horizontally, and two groups of automobile seat frame positioning components 4 respectively clamp the two sides of the seat back at an angle, the welding platform 1 comprises support legs 11, reinforcement rods 12 and a mounting platform 13, the four support legs 11 are respectively fixedly installed at the four corners of the bottom surface of the mounting platform 13, and the reinforcement rods 12 are respectively fixedly installed between two adjacent support legs 11.

[0023] In this embodiment, the car seat seat frame is placed between three groups of car seat frame positioning components 4, and the three groups of car seat frame positioning components 4 respectively position and clamp the three sides of the car seat seat frame; the seat back is placed between two groups of car seat frame positioning components 4, and the two groups of car seat frame positioning components 4 respectively position and clamp the two sides of the car seat back frame; the structural parts to be welded are placed on the welding surfaces of the seat back and the seat surface, and the welding robot is started to drive the welding gun to perform assembly welding, wherein the clamping points of the five groups of car seat frame positioning components 4 will not affect the working path of the welding gun, so that the welding robot can perform assembly welding on multiple structural parts according to the complete welding trajectory, thereby improving the efficiency of welding the car seat frame.

[0024] Embodiment 2: Figure 1 - Figure 7 As shown, it includes a welding platform 1, one end of the top surface of the welding platform 1 is fixedly installed with a tilting angle plate 2 for adjusting the tilt angle of the seat back, one side of the tilting angle plate 2 is fixedly installed with a No. 1 mounting plate 3, and the other end of the No. 1 mounting plate 3 and the welding platform 1 are fixedly installed with a number of automobile seat frame positioning components 4, the automobile seat frame positioning components 4 are used to position and clamp the automobile seat frame, wherein three groups of automobile seat frame positioning components 4 respectively clamp the three edges of the seat surface horizontally, and two groups of automobile seat frame positioning components 4 respectively tilt and clamp the two sides of the seat back, a bearing platform 13 is fixedly installed at one end of the top surface of the mounting platform 13, the tilting angle plate 2 is fixedly installed on the top surface of the bearing platform 131, and a number of automobile seat frame positioning components 4 are fixedly installed at the other end of the top surface of the mounting platform 13, the tilting angle plate 2 includes a bottom plate 21, a base 22, an adjusting shaft 23, and a tilting plate 24, and the two bases 22 are respectively fixedly installed Mounted on both sides of one end of the bottom plate 21, the two ends of the adjusting shaft 23 are respectively rotatably clamped in the inside of the base 22, and the movement of the adjusting shaft 23 passes through one end of the inclined plate 24. A positioning slot 241 is symmetrically provided on one side of the inclined plate 24, and a clamping strip 31 is symmetrically fixedly installed on one side of the No. 1 mounting plate 3, and the clamping strip 31 is fixedly clamped in the inside of the positioning slot 241. A number of No. 1 adjusting threaded holes 211 are respectively provided on both sides of the bottom plate 21, and the internal threads of the two No. 1 adjusting threaded holes 211 are connected to the No. 1 adjusting bolt 212. Support clamps 25 are provided on both sides of the bottom plate 21, and one end of the support clamp 25 is rotatably clamped in the outside of one end of the No. 1 adjusting bolt 212. A number of No. 2 adjusting threaded holes 242 are respectively provided on both sides of the inclined plate 24, and the internal threads of the two No. 2 adjusting threaded holes 242 are connected to the No. 2 adjusting bolt 243, and the other end of the support clamp 25 is rotatably clamped in one end of the No. 2 adjusting bolt 243.

[0025] In this embodiment, workers can adjust the opening and closing angle between the bottom plate 21 and the inclined plate 24 in the inclined angle plate 2 according to the inclination angle of the chair back. After the adjustment is completed, the No. 1 adjusting bolt 212 and the No. 2 adjusting bolt 243 are passed through the two ends of the support clamp 25, and are respectively threadedly connected to the inside of the No. 1 adjusting threaded hole 211 and the No. 2 adjusting threaded hole 242, so that the support clamp 25 provides stable support for the inclined plate 24, wherein the No. 2 adjusting threaded hole 242 at different positions represents different preset angles. When other preset angles need to be replaced, the No. 2 adjusting bolt 243 is taken out from the No. 2 adjusting threaded hole 242 and installed in other No. 2 adjusting threaded holes 242 to achieve rapid adjustment of different preset angles.

[0026] Embodiment 3: According to Figure 1 - Figure 7 As shown, it includes a welding platform 1, one end of the top surface of the welding platform 1 is fixedly installed with an inclined angle plate 2 for adjusting the inclination angle of the seat back, one side of the inclined angle plate 2 is fixedly installed with a No. 1 mounting plate 3, and the other end of the No. 1 mounting plate 3 and the welding platform 1 are fixedly installed with a plurality of automobile seat frame positioning components 4, and the automobile seat frame positioning components 4 are used to position and clamp the automobile seat frame, wherein three groups of automobile seat frame positioning components 4 respectively clamp the three edges of the seat surface horizontally, and two groups of automobile seat frame positioning components 4 respectively clamp the two sides of the seat back in an inclined manner, and the automobile seat frame positioning components 4 include positioning frames 41, a mounting table 42 and a quick clamp 43, the two positioning frames 41 are fixedly installed on the top surface of the welding platform 1 by bolts, one side of the positioning frame 41 is fixedly connected to the mounting table 42 by bolts, a No. 2 mounting plate 421 is fixedly installed on the top surface of the mounting table 42, the quick clamp 43 is fixedly installed on the top surface of the No. 2 mounting plate 421, one side of the mounting table 42 is fixedly installed with a skeleton slot 422, the clamping end of the quick clamp 43 is fixedly connected with a multi-point clamp 431, one end of the multi-point clamp 431 is fixedly connected with a plurality of upper clamping slots 432, and a rubber cushion 423 is fixedly installed inside the skeleton slot 422.

[0027] In this embodiment, when the automobile seat frame positioning component 4 positions and clamps the automobile seat frame, the automobile seat frame is first placed inside the frame slot 422, and the quick clamp 43 is bent so that the multi-point clamp 431 positions and clamps the upper end of the automobile seat frame, wherein one end of the multi-point clamp 431 is fixedly connected with a plurality of upper clamping grooves 432, and the upper clamping grooves 432 and the frame slot 422 cooperate with each other for positioning, so that only a single quick clamp 43 is required to clamp the automobile seat frame at multiple points, thereby reducing the equipment cost of the automobile seat frame assembly welding tooling, and at the same time, the rubber pad 423 inside the frame slot 422 can protect the outer surface of the clamping point of the automobile seat frame.

[0028] Embodiment 4: A casting process for an impeller, comprising the following steps: S1, placing the seat frame of the automobile seat between three sets of automobile seat frame positioning components 4, and the three sets of automobile seat frame positioning components 4 respectively position and clamp the three sides of the seat frame of the automobile seat; S2, adjust the opening and closing angle between the bottom plate 21 and the inclined plate 24 in the inclined angle plate 2, so that the inclination angle of the inclined angle plate 2 meets the installation angle of the seat back, pass the No. 1 adjustment bolt 212 and the No. 2 adjustment bolt 243 through the two ends of the support clamp 25, and respectively thread them into the No. 1 adjustment threaded hole 211 and the No. 2 adjustment threaded hole 242, to complete the angle adjustment of the inclined angle plate 2; S3, placing the seat back between two sets of automobile seat frame positioning components 4, and the two sets of automobile seat frame positioning components 4 respectively position and clamp the two sides of the automobile seat back frame; S4. Place the structural parts to be welded on the welding surfaces of the seat back and seat surface, start the welding robot to drive the welding gun to perform assembly welding.

[0029] The method of use and working principle of the device are as follows: the seat frame of the automobile seat is placed between three groups of automobile seat frame positioning components 4, and the three groups of automobile seat frame positioning components 4 respectively position and clamp the three sides of the seat frame of the automobile seat; the seat back is placed between two groups of automobile seat frame positioning components 4, and the two groups of automobile seat frame positioning components 4 respectively position and clamp the two sides of the seat back frame of the automobile seat; the structural parts to be welded are placed on the welding surface of the seat back and the seat surface, and the welding robot is started to drive the welding gun to perform assembly welding; the worker can adjust the opening and closing angle between the bottom plate 21 and the inclined plate 24 in the inclined angle plate 2 according to the inclination angle of the seat back. After the adjustment is completed, the No. 1 adjustment bolt 212 and the No. 2 adjustment bolt are tightened. The joint bolt 243 passes through the two ends of the support clamp 25 and is respectively threadedly connected to the inside of the No. 1 adjustment threaded hole 211 and the No. 2 adjustment threaded hole 242, so that the support clamp 25 provides stable support for the tilt plate 24; when the automobile seat frame positioning assembly 4 positions and clamps the automobile seat frame, first place the automobile seat frame inside the frame slot 422, and bend the quick clamp 43 so that the multi-point clamp 431 positions and clamps the upper end of the automobile seat frame, wherein one end of the multi-point clamp 431 is fixedly connected to a plurality of upper clamping grooves 432, and the upper clamping grooves 432 and the frame slots 422 cooperate with each other for positioning, so that only a single quick clamp 43 is required to clamp the automobile seat frame at multiple points.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding tool for automobile seat frame assembly, characterized in that: The invention comprises a welding platform (1), wherein one end of the top surface of the welding platform (1) is fixedly mounted with an inclined angle plate (2) for adjusting the inclination angle of a seat back, one side of the inclined angle plate (2) is fixedly mounted with a No. 1 mounting plate (3), and the other end of the No. 1 mounting plate (3) and the welding platform (1) are fixedly mounted with a plurality of automobile seat frame positioning components (4), wherein the automobile seat frame positioning components (4) are used to position and clamp the automobile seat frame, wherein three groups of the automobile seat frame positioning components (4) respectively clamp the three edges of the seat surface horizontally, and two groups of the automobile seat frame positioning components (4) respectively clamp the two sides of the seat back in an inclined manner.

2. The welding tool for automobile seat frame assembly according to claim 1 is characterized in that: The welding platform (1) comprises support legs (11), reinforcing rods (12) and a mounting platform (13); the four support legs (11) are respectively fixedly mounted at four corners of the bottom surface of the mounting platform (13); and the reinforcing rods (12) are respectively fixedly mounted between two adjacent support legs (11).

3. The welding tool for automobile seat frame assembly according to claim 2 is characterized in that: A load-bearing platform (131) is fixedly mounted on one end of the top surface of the mounting platform (13), the inclined angle plate (2) is fixedly mounted on the top surface of the load-bearing platform (131), and the plurality of automobile seat frame positioning assemblies (4) are fixedly mounted on the other end of the top surface of the mounting platform (13).

4. The welding tool for automobile seat frame assembly according to claim 1 is characterized in that: The inclined angle plate (2) comprises a bottom plate (21), a base (22), an adjustment shaft (23), and an inclined plate (24); the two bases (22) are respectively fixedly mounted on two sides of one end of the bottom plate (21); the two ends of the adjustment shaft (23) are respectively rotatably clamped inside the base (22); and the movement of the adjustment shaft (23) passes through one end of the inclined plate (24).

5. The welding tool for automobile seat frame assembly according to claim 4 is characterized in that: A positioning slot (241) is symmetrically provided on one side of the inclined plate (24), and a clamping strip (31) is symmetrically fixedly installed on one side of the first mounting plate (3), wherein the clamping strip (31) is fixedly clamped inside the positioning slot (241).

6. The welding tool for automobile seat frame assembly according to claim 5, characterized in that: A plurality of No. 1 adjusting threaded holes (211) are respectively provided on both sides of the bottom plate (21), and the internal threads of two of the No. 1 adjusting threaded holes (211) are connected to a No. 1 adjusting bolt (212). Support clamps (25) are provided on both sides of the bottom plate (21), and one end of the support clamp (25) is rotatably clamped to the outside of one end of the No. 1 adjusting bolt (212).

7. The welding tool for automobile seat frame assembly according to claim 6 is characterized in that: A plurality of No. 2 adjusting threaded holes (242) are respectively provided on both sides of the tilting plate (24), and the inner threads of two No. 2 adjusting threaded holes (242) are connected with No. 2 adjusting bolts (243), and the other end of the supporting clamp (25) is rotatably clamped on one end of the No. 2 adjusting bolt (243).

8. The welding tool for automobile seat frame assembly according to claim 1 is characterized in that: The automobile seat frame positioning assembly (4) comprises a positioning frame (41), a mounting platform (42) and a quick clamp (43), wherein the two positioning frames (41) are fixedly mounted on the top surface of the welding platform (1) by means of bolts, one side of the positioning frame (41) is fixedly connected to the mounting platform (42) by means of bolts, a second mounting plate (421) is fixedly mounted on the top surface of the mounting platform (42), the quick clamp (43) is fixedly mounted on the top surface of the second mounting plate (421), and a frame slot (422) is fixedly mounted on one side of the mounting platform (42).

9. The welding tool for automobile seat frame assembly according to claim 8, characterized in that: The clamping end of the quick clamp (43) is fixedly connected to a multi-point clamp (431), one end of the multi-point clamp (431) is fixedly connected to a plurality of upper clamping grooves (432), and a rubber cushion (423) is fixedly installed inside the skeleton clamping groove (422).

10. A method for using a welding tool for an automobile seat frame assembly, characterized in that: The following steps are involved: S1, placing the seat frame of the automobile seat between three sets of automobile seat frame positioning components (4), wherein the three sets of automobile seat frame positioning components (4) respectively position and clamp three sides of the seat frame of the automobile seat; S2, adjusting the opening and closing angle between the bottom plate (21) and the tilting plate (24) of the tilting angle plate (2) so that the tilting angle of the tilting angle plate (2) satisfies the installation angle of the chair back, passing the No. 1 adjusting bolt (212) and the No. 2 adjusting bolt (243) through the two ends of the supporting clamp (25), and respectively threading them into the No. 1 adjusting threaded hole (211) and the No. 2 adjusting threaded hole (242), thereby completing the angle adjustment of the tilting angle plate (2); S3, placing the seat back between two sets of automobile seat frame positioning components (4), the two sets of automobile seat frame positioning components (4) respectively positioning and clamping two sides of the automobile seat back frame; S4. Place the structural parts to be welded on the welding surfaces of the seat back and seat surface, start the welding robot to drive the welding gun to perform assembly welding.

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