Multi-petal welding forming system and welding process

Abstract

The invention discloses a multi-petal welding forming system, comprising a spherical disk pile, a spherical petal pile and an automatic welding tool; the spherical disk pile is formed by stacking a plurality of spherical arc surface disks with convex surfaces facing downward; the spherical petal pile is formed by stacking a plurality of spherical arc surface petals in a petal shape with convex surfaces facing upward; the automatic welding tool can pick up the spherical arc surface disks on the spherical disk pile, and pick up the spherical arc surface petals on the spherical petal pile; the automatic welding tool can splice the two taken spherical arc surface disks and a plurality of spherical arc surface petals into a complete spherical shell body and weld the spliced ​​splicing seams; the problem of positioning difficulty caused by the method of first fully splicing and then uniformly welding is solved.

Description

Technical Field

[0001] The invention belongs to the field of welding. Background Art

[0002] A complete metal spherical shell structure cannot be formed in one step in the existing processing technology. Generally, multiple spherical petals need to be spliced ​​into a spherical shell, the splicing seams need to be welded in real time, and then the weld surface needs to be polished to finally obtain a complete spherical shell structure.

[0003] For the welding of the ball shell, the inventor has designed a welding process for the ball shell as follows: Figure 1 As shown, two spherical arc disks and several spherical arc petals are gradually spliced ​​into a complete spherical shell, and welding is carried out during the gradual splicing process; the problem of difficult workpiece positioning caused by the method of first splicing and then uniformly welding is avoided; based on this innovative welding process, this case designs an automatic welding system and welding process that can achieve full automation. Summary of the invention

[0004] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a multi-petal welding forming system and a welding process, which can realize automatic welding of the entire process.

[0005] Technical solution: To achieve the above-mentioned purpose, a multi-petal welding forming system of the present invention comprises a spherical disc stack, a spherical petal stack and an automatic welding tool; the spherical disc stack is formed by stacking a plurality of spherical arc surface discs with the convex surface facing downward; the spherical petal stack is formed by stacking a plurality of spherical arc surface petals in the shape of petals with the convex surface facing upward;

[0006] The automatic welding tool can pick up a spherical arc disk from a spherical disk pile, and pick up a spherical arc petal from a spherical petal pile; the automatic welding tool can splice the two spherical arc disks and several spherical arc petals taken into a complete spherical shell and weld the spliced ​​seams.

[0007] Furthermore, the automatic welding tooling includes a transverse rotating shaft, a rocker arm is provided at the end of the transverse rotating shaft, a horizontal guide arm is vertically fixedly connected to the end of the rocker arm, a suction cup bracket is fixedly connected to the end of the guide arm, a rotating suction cup a with the adsorption end facing downward is rotatably installed on the lower side of the suction cup bracket through a rotating mechanism, a rotating suction cup b with the adsorption end facing upward and rotatable along the axis is coaxially arranged below the rotating suction cup a, and the adsorption ends of the rotating suction cups a and b can both adsorb the convex surface of the spherical arc disc.

[0008] Furthermore, a b suction cup bracket is arranged below the b rotating suction cup, a lifter is arranged on the upper side of the b suction cup bracket, and the upper end of the lifter is connected to the b rotating suction cup through a rotating mechanism.

[0009] Furthermore, the a suction cup bracket and the b suction cup bracket are fixedly connected via a vertical synchronization arm.

[0010] Furthermore, a slider is provided on the track along the length direction on the lower side of the guide arm, and a flip motor is fixedly installed on the lower side of the slider through a motor bracket arm, and the axis of the flip motor is parallel to the horizontal rotation axis a; a vertical telescope a is fixedly connected to the flip output shaft of the flip motor, and a transfer suction cup is fixedly connected to the lower end of a telescopic rod a of the telescope a, and the translation of the slider can drive the transfer suction cup to translate to the top of the spherical disk stack with the same axis, and to translate to between the a rotating suction cup and the b rotating suction cup with the same axis; when the a rotating suction cup and the b rotating suction cup respectively adsorb two spherical arc surface disks, the two spherical arc surface disks adsorbed by the a rotating suction cup and the b rotating suction cup are respectively recorded as a spherical arc surface disk and b spherical arc surface disk.

[0011] Furthermore, a transmission tooth body is arranged along the contour array on the outer peripheral contour of the a rotating suction cup, and a gear drive motor is fixedly mounted on the a suction cup bracket, and an output gear connected to the output end of the gear drive motor is meshed with the transmission tooth body.

[0012] Furthermore, the common axis of rotating suction cup a and rotating suction cup b intersects with the axis of transverse rotating axis a, and the intersection is recorded as the target sphere center; a horizontal transverse rotating axis b is arranged above the spherical petal stack, and its axis intersects with the axis of transverse rotating axis a perpendicularly. The intersection of the axis of transverse rotating axis b and the axis of transverse rotating axis a is recorded as a virtual intersection, and the vertical straight line passing through the virtual intersection is recorded as a virtual straight line. The spherical sphere centers of each spherical arc petal on the spherical petal stack are all on the virtual straight line.

[0013] Furthermore, a vertical b expander is vertically fixedly connected to the end of the b transverse rotating shaft, a suction cup support is fixedly connected to the lower end of the b expansion rod of the b expander, a downward suction cup assembly is installed below the suction cup support, and the downward extension of the b expansion rod can enable the suction cup assembly to absorb a spherical arc petal at the top of the spherical petal stack;

[0014] A welder driving motor is fixedly installed above the a rotating suction cup through an independent fixing bracket, the longitudinal output shaft of the welder driving motor is coaxial with the a rotating suction cup, the lower end of the longitudinal output shaft is connected with an oblique arm, the end of the oblique arm is fixedly installed with a welder, and the welding gun extension line of the welding gun of the welder passes through the center of the target sphere; the center of the a spherical arc surface disk adsorbed by the a rotating suction cup coincides with the center of the target sphere, and the outer contour line of the a spherical arc surface disk intersects with the welding gun extension line.

[0015] Further, a welding process of a multi-petal welding forming system:

[0016] Step 1, transfer the suction cup to be coaxial with the spherical disk stack;

[0017] Step 2: The transfer suction cup moves the adsorbed spherical arc disk upward to separate from the spherical disk pile;

[0018] Step 3, the transfer suction cup and the spherical arc surface disc adsorbed thereon are translated to be coaxially located between the rotating suction cup a and the rotating suction cup b;

[0019] Step 4: The spherical arc disk adsorbed by the lower side of the transfer suction cup is adsorbed by the b rotating suction cup, so that the transfer suction cup is separated from the b spherical arc disk adsorbed by the b rotating suction cup below;

[0020] Step 5, the arc surface disc a is tightly clamped between the rotating suction cup a and the transfer suction cup;

[0021] Step six, achieving welding of the arc-shaped a welding gap;

[0022] Step 7, achieving welding of the arc-shaped b welding gap;

[0023] Step 8, welding the upper and lower ends of the second spherical arc surface petal to the spherical arc surface disc a and the spherical arc surface disc b into one;

[0024] Step nine, splicing the spherical arc surface disk a, the spherical arc surface disk b and a plurality of spherical arc surface petals together into a complete spherical shell;

[0025] Step ten, achieving complete welding of the welding gap to be welded c;

[0026] Step eleven, making sure the complete ball shell can be taken out smoothly.

[0027] Beneficial effects: The automatic welding tool of the present invention can automatically splice two spherical arc surface discs and a plurality of spherical arc surface petals into a complete spherical shell and completely weld the spliced ​​seams by using one welding device, thereby improving the consistency and efficiency of product production.

[0028] In the specific process, two spherical arc surface disks and several spherical arc surface petals are gradually spliced ​​into a complete spherical shell, and welding is carried out during the gradual splicing process, which solves the problem of positioning difficulty caused by the method of first fully splicing and then uniformly welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Attached Figure 1 This is the overall welding flow chart of the ball shell;

[0030] Attached Figure 2 It is a schematic diagram of the process from "step one" to "step three";

[0031] Attached Figure 3 It is a schematic diagram of the process from "step 4" to "step 6";

[0032] Attached Figure 4 This is a schematic diagram of the process from “step seven” to “step nine”. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] As attached Figures 1 to 4 A multi-petal welding forming system shown in the figure comprises a spherical disk stack 13, a spherical petal stack 22 and an automatic welding tool; the spherical disk stack 13 is formed by stacking a plurality of spherical arc surface disks 12 with the convex surface facing downward; the spherical petal stack 22 is formed by stacking a plurality of spherical arc surface petals 39 in the shape of petals and with the convex surface facing upward; the automatic welding tool can pick up the spherical arc surface disks 12 on the spherical disk stack 13, and pick up the spherical arc surface petals 39 on the spherical petal stack 22; the automatic welding tool can splice the two spherical arc surface disks 12 and a plurality of spherical arc surface petals 39 picked up into a complete spherical shell 41 and weld the spliced ​​seams.

[0035] In order to realize the position constraint of the spherical disk stack 13 and the spherical petal stack 22, as shown in FIG. Figure 2 An a lifting and ejecting device 50 is arranged below the spherical disk pile 13, and the a lifting and ejecting device 50 can push the spherical disk pile 13 upward; a plurality of a constraint columns 14 are distributed around the spherical disk pile 13; a b lifting and ejecting device 23 is arranged below the spherical petal pile 22, and the b lifting and ejecting device 23 can push the spherical petal pile 22 upward; a plurality of b constraint columns 24 are distributed around the spherical petal pile 22.

[0036] The automatic welding tooling comprises a transverse rotating shaft 8 which can be driven to rotate by a driving device, a rocker arm 9 is vertically connected to the end of the transverse rotating shaft 8, a horizontal guide rail arm 6 is vertically fixedly connected to the end of the rocker arm 9, a suction cup bracket 3 is fixedly connected to the end of the guide rail arm 6, a rotating suction cup 19 with an adsorption end facing downward is rotatably installed on the lower side of the suction cup bracket 3 through a rotating mechanism, a rotating suction cup 19 with an adsorption end facing upward and rotatable along the axis is coaxially arranged below the rotating suction cup 19, and the adsorption ends of the rotating suction cup 19 and the rotating suction cup 17 can both adsorb the convex surface of the spherical arc disk 12; a suction cup bracket 15 is arranged below the rotating suction cup 17, a lifter 16 is arranged on the upper side of the suction cup bracket 15, and the upper end of the lifter 16 is connected to the rotating suction cup 17 b through a rotating mechanism.

[0037] like Figure 2As shown, the a suction cup bracket 3 is fixedly connected to the b suction cup bracket 15 through a vertical synchronous arm; the common axis of the a rotating suction cup 19 and the b rotating suction cup 17 intersects with the axis of the a horizontal rotating shaft 8, and the intersection is recorded as the target ball center 60; a slider 7 is arranged on the track along the length direction at the lower side of the guide arm 6, and a flip motor 11 is fixedly installed at the lower side of the slider 7 through the motor bracket arm 10, and the axis of the flip motor 11 is parallel to the a horizontal rotating shaft 8; the flip output shaft 4 of the flip motor 11 is fixedly connected to the vertical a telescope 5 The lower end of the a telescopic rod 20 of the a telescopic device 5 is fixedly connected with a transfer suction cup 21, and the translation of the slider 7 can drive the transfer suction cup 21 to translate to the top of the spherical disk pile 13 coaxially, and to translate to between the a rotating suction cup 19 and the b rotating suction cup 17 coaxially; when the a rotating suction cup 19 and the b rotating suction cup 17 respectively adsorb two spherical arc surface disks 12, the two spherical arc surface disks 12 adsorbed by the a rotating suction cup 19 and the b rotating suction cup 17 are respectively recorded as a spherical arc surface disk 12a and b spherical arc surface disk 12b.

[0038] A transmission tooth body 18 is arranged in an array along the contour of the outer peripheral contour of the a rotating suction cup 19, and a gear drive motor 34 is fixedly installed on the a suction cup bracket 3. The output gear connected to the output end of the gear drive motor 34 is meshed with the transmission tooth body 18. A horizontal b transverse rotating shaft 28 is arranged above the spherical petal stack 22, and its axis intersects the axis of the a transverse rotating shaft 8 at right angles. The intersection of the axis of the b transverse rotating shaft 28 and the axis of the a transverse rotating shaft 8 is recorded as a virtual intersection 60, and the vertical straight line passing through the virtual intersection 60 is recorded as a virtual straight line 61. The spherical centers of each spherical arc petal 39 on the spherical petal stack 22 are all on the virtual straight line 61.

[0039] A vertical b telescope 29 is vertically fixedly connected to the end of the b transverse rotating shaft 28, and a suction cup support 26 is fixedly connected to the lower end of the b telescopic rod 27 of the b telescope 29. A downward suction cup assembly 25 is installed below the suction cup support 26. The downward extension of the b telescopic rod 27 can enable the suction cup assembly 25 to absorb a spherical arc surface petal 39 at the upper end of the spherical petal pile 22; a welder drive motor 1 is fixedly installed above the a rotating suction cup 19 through an independent fixed bracket, and the longitudinal output shaft 2 of the welder drive motor 1 is coaxial with the a rotating suction cup 19. The lower end of the longitudinal output shaft 2 is connected to an inclined arm 33, and a welder 32 is fixedly installed at the end of the inclined arm 33. The welding gun extension line 60 of the spray welding gun 31 of the welder 32 passes through the target sphere center 60; the sphere center of the a spherical arc surface disk 12a absorbed by the a rotating suction cup 19 coincides with the target sphere center 60, and the outer contour line of the a spherical arc surface disk 12a intersects with the welding gun extension line 60.

[0040] Detailed welding process, such as Figures 2 to 4 As shown:

[0041] Step 1: The slider 7 is translated along the guide rail arm 6, driving the transfer suction cup 21 to be translated to be coaxial with the spherical disk stack 13;

[0042] Step 2: the telescopic rod a 20 is extended downward to make the transfer suction cup 21 descend to suck the spherical arc surface disc 12 at the top of the spherical disc stack 13, and then the telescopic rod a 20 is controlled to retract upward to make the transfer suction cup 21 rise with the sucked spherical arc surface disc 12 to be separated from the spherical disc stack 13;

[0043] Step 3, the control slider 7 is translated along the guide rail arm 6, and the transfer suction cup 21 and the adsorbed spherical arc surface disk 12 are translated to the coaxial center between the a rotation suction cup 19 and the b rotation suction cup 17;

[0044] Step 4: Control the telescopic rod a 20 to extend downward, so that a spherical arc disk 12 adsorbed by the lower side of the transfer suction cup 21 is lowered to fit the b rotating suction cup 17 and is adsorbed by the b rotating suction cup 17. The spherical arc disk 12 adsorbed by the b rotating suction cup 17 is recorded as b spherical arc disk 12b; then control the transfer suction cup 21 to release the adsorption force, and control the telescopic rod a 20 to retract upward, so that the transfer suction cup 21 is separated from the b spherical arc disk 12b adsorbed by the b rotating suction cup 17 below;

[0045] Step 5: first refer to the method of "step 1" to "step 3" to make the transfer suction cup 21 absorb the second spherical arc surface disk 12 and move it to be coaxial between the a rotation suction cup 19 and the b rotation suction cup 17;

[0046] Then, the flip output shaft 4 is controlled to rotate 180°, so that the telescopic rod a 20 and the transfer suction cup 21 originally facing downward face upward, and then the telescopic rod a 20 is controlled to extend upward, so that the spherical arc surface disk 12 adsorbed on the upper side of the transfer suction cup 21 moves upward to fit the a rotating suction cup 19, and the spherical arc surface disk 12 fitted with the a rotating suction cup 19 is recorded as a spherical arc surface disk 12a. At this time, the a spherical arc surface disk 12a is tightly clamped between the a rotating suction cup 19 and the transfer suction cup 21;

[0047] Step 6, the b telescopic rod 27 is extended downward to make the suction cup assembly 25 absorb the spherical arc surface petal 39 at the upper end of the spherical surface petal pile 22, and then the b telescopic rod 27 is controlled to retract upward to a sufficient length, and then the b transverse rotation axis 28 is controlled to rotate 90° counterclockwise, and then the b telescopic rod 27 is controlled to gradually extend until the center of the spherical arc surface petal 39 absorbed by the suction cup assembly 25 is translated to coincide with the target ball center 60, at this time, an arc-shaped a welding gap 40.1 is formed between the upper end contour of the spherical arc surface petal 39 absorbed by the suction cup assembly 25 and the outer contour of the a spherical arc surface disk 12a, and the spherical arc surface petal 3 absorbed by the suction cup assembly 25 is A circular arc-shaped b welding gap 40.2 is formed between the lower end contour of 9 and the outer contour of the b spherical arc surface disk 12b, and from the geometric relationship, it can be known that the welding gun extension line 60 of the spray welding gun 31 intersects with the circular arc-shaped a welding gap 40.1 at this time. At this time, the spray welding gun 31 is controlled to spray the welding liquid to the circular arc-shaped a welding gap 40.1. At the same time, the longitudinal output shaft 2 is controlled to rotate adaptively so that the welding liquid sprayed from the spray welding gun 31 sweeps the circular arc-shaped a welding gap 40.1 along the circular arc path, thereby realizing the welding of the circular arc-shaped a welding gap 40.1; at this time, the spherical arc surface petal 39 and the a spherical arc surface disk 12a have been integrated;

[0048] Step seven, control the a horizontal rotating shaft 8 to rotate 180°, so that the a rotating suction cup 19 reaches the bottom of the b rotating suction cup 17, at this time, the welding gun extension line 60 of the spray welding gun 31 intersects with the arc-shaped b welding gap 40.2 at this time, and control the spray welding gun 31 to spray the welding liquid to the arc-shaped b welding gap 40.2. At the same time, control the longitudinal output shaft 2 to rotate adaptively, so that the welding liquid sprayed from the spray welding gun 31 sweeps the arc-shaped b welding gap 40.2 along the arc path, thereby realizing the welding of the arc-shaped b welding gap 40.2; at this time, the spherical arc surface petal 39, the a spherical arc surface disc 12a and the b spherical arc surface disc 12b have been integrated and tightly clamped between the a rotating suction cup 19 and the b rotating suction cup 17;

[0049] Step eight, control the a horizontal rotation axis 8 to rotate 180 degrees in the opposite direction relative to the previous step, control the a telescopic rod 20 to retract downward, and control the slider 7 to translate, so that the transfer suction cup 21 deviates from between the a rotating suction cup 19 and the b rotating suction cup 17;

[0050] Finally, the gear drive motor 34 is controlled to drive the transmission gear body 18 and then drive the a rotating suction cup 19 to rotate a°, so that the spherical arc surface petal 39 rotates around the axis of the a rotating suction cup 19 to just deviate from its original position; finally, referring to "step 6" to "step 7", the upper and lower ends of the second spherical arc surface petal 39 are welded to the a spherical arc surface disc 12a and the b spherical arc surface disc 12b as a whole;

[0051] Step nine, continuously repeating the latter part of “Step eight” until the a-spherical arc surface disc 12a, the b-spherical arc surface disc 12b and a plurality of spherical arc surface petals 39 are spliced ​​together to form a complete spherical shell 41;

[0052] An arc-shaped c welding gap 40.3 is formed between any two adjacent spherical arc surface petals 39 to wait for welding; at this time, the gear drive motor 34 is controlled to drive the transmission gear body 18 to drive the a rotating suction cup 19 and the complete spherical shell 41 to rotate, so that the axis of an arc-shaped c welding gap 40.3 on the complete spherical shell 41 coincides with the a horizontal rotation axis 8, and this c welding gap 40.3 is recorded as the c welding gap 40.3a to be welded, and then the longitudinal output shaft 2 is controlled to rotate until the welding gun extension line 60 of the spray welding gun 31 intersects with the upper end of the c welding gap 40.3a to be welded;

[0053] Step ten, control the spray welding gun 31 to spray the welding liquid toward one end of the welding gap c 40.3a to be welded, and at the same time, control the a transverse rotating shaft 8 to gradually rotate counterclockwise, so that the welding liquid sprayed by the spray welding gun 31 is relatively scanned along the arc path of the welding gap c 40.3a to be welded, thereby achieving complete welding of the welding gap c 40.3a to be welded;

[0054] Step eleven, referring to the previous two steps, weld the other several c welding gaps 40.3 on the complete ball shell 41, and finally obtain a complete ball shell 41 without gaps; finally, control the lifter 16 to retract downward to a sufficient height so that the clamped complete ball shell 41 can be smoothly taken out.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multi-petal welding forming system, characterized in that: The invention comprises a spherical disk pile (13), a spherical petal pile (22) and an automatic welding tool; the spherical disk pile (13) is formed by stacking a plurality of spherical arc surface disks (12) with convex surfaces facing downwards; the spherical petal pile (22) is formed by stacking a plurality of spherical arc surface petals (39) in the shape of petals with convex surfaces facing upwards; The automatic welding tool can take out the spherical arc surface disk (12) from the spherical surface disk pile (13), and take out the spherical arc surface petal (39) from the spherical surface petal pile (22); the automatic welding tool can splice the taken two spherical arc surface disks (12) and a plurality of spherical arc surface petals (39) into a complete spherical shell (41) and weld the spliced ​​seams; The automatic welding tool comprises a transverse rotating shaft (8), a rocker arm (9) is provided at the end of the transverse rotating shaft (8), a horizontal guide rail arm (6) is vertically fixedly connected to the end of the rocker arm (9), a suction cup bracket (3) is fixedly connected to the end of the guide rail arm (6), a rotating suction cup (19) with an adsorption end facing downward is rotatably installed on the lower side of the suction cup bracket (3) through a rotating mechanism, a rotating suction cup (19) with an adsorption end facing upward and rotatable along the axis is coaxially arranged below the rotating suction cup (19), and the adsorption ends of the rotating suction cup (19) and the rotating suction cup (17) can both adsorb the convex surface of the spherical arc disk (12); A b suction cup bracket (15) is arranged below the b rotating suction cup (17), a lifter (16) is arranged on the upper side of the b suction cup bracket (15), and the upper end of the lifter (16) is connected to the b rotating suction cup (17) via a rotating mechanism; the a suction cup bracket (3) and the b suction cup bracket (15) are fixedly connected via a vertical synchronization arm; A slider (7) is provided on the track along the length direction of the lower side of the guide rail arm (6); a flip motor (11) is fixedly installed on the lower side of the slider (7) through a motor bracket arm (10); the axis of the flip motor (11) is parallel to the a horizontal rotation axis (8); a vertical a telescopic device (5) is fixedly connected to the flip output shaft (4) of the flip motor (11); a transfer suction cup (21) is fixedly connected to the lower end of the a telescopic rod (20) of the a telescopic device (5); and the translation energy band of the slider (7) is fixedly connected to the a telescopic device (20) of the a telescopic device (5). The dynamic transfer suction cup (21) is translated to be coaxially located above the spherical disk stack (13), and is translated to be coaxially located between the a rotation suction cup (19) and the b rotation suction cup (17); when the a rotation suction cup (19) and the b rotation suction cup (17) respectively adsorb the two spherical arc surface disks (12), the two spherical arc surface disks (12) adsorbed by the a rotation suction cup (19) and the b rotation suction cup (17) are respectively recorded as a spherical arc surface disk (12a) and b spherical arc surface disk (12b); The common axis of the a rotating suction cup (19) and the b rotating suction cup (17) intersects with the axis of the a horizontal rotating axis (8), and the intersection is recorded as the target sphere center (60); a horizontal b horizontal rotating axis (28) is arranged above the spherical petal stack (22) and its axis intersects with the axis of the a horizontal rotating axis (8) at right angles; the intersection of the axis of the b horizontal rotating axis (28) and the axis of the a horizontal rotating axis (8) is recorded as a virtual intersection; the vertical straight line passing through the virtual intersection is recorded as a virtual straight line (61); the spherical sphere centers of the spherical arc petals (39) on the spherical petal stack (22) are all on the virtual straight line (61); The end of the b horizontal rotating shaft (28) is vertically fixedly connected to a vertical b telescope (29), the lower end of the b telescopic rod (27) of the b telescope (29) is fixedly connected to a suction cup support (26), and a downward suction cup assembly (25) is installed below the suction cup support (26). The downward extension of the b telescopic rod (27) can enable the suction cup assembly (25) to absorb a spherical arc surface petal (39) at the upper end of the spherical petal pile (22); a welding device drive motor (1) is fixedly installed above the a rotating suction cup (19) through an independent fixed bracket, and the welding The longitudinal output shaft (2) of the device driving motor (1) is coaxial with the a rotating suction cup (19); the lower end of the longitudinal output shaft (2) is connected to an inclined arm (33); the end of the inclined arm (33) is fixedly mounted with a welder (32); a welding gun extension line (60) of a spray welding gun (31) of the welder (32) passes through the target sphere center (60); the sphere center of the a spherical arc surface disk (12a) adsorbed by the a rotating suction cup (19) coincides with the target sphere center (60), and the outer contour line of the a spherical arc surface disk (12a) intersects with the welding gun extension line.

2. A multi-petal welding forming system according to claim 1, characterized in that: A transmission tooth body (18) is arranged in an array along the outer contour of the a rotating suction cup (19); a gear drive motor (34) is fixedly mounted on the a suction cup bracket (3); an output gear connected to the output end of the gear drive motor (34) meshes with the transmission tooth body (18).

3. The welding process of a multi-petal welding forming system according to claim 2, characterized in that: Step 1, transfer the suction cup (21) to be coaxial with the spherical disc stack (13); Step 2, the transfer suction cup (21) moves up with the sucked spherical arc disk (12) to separate from the spherical disk pile (13); Step 3, the transfer suction cup (21) and the spherical arc surface disk (12) adsorbed thereon are translated to between the rotating suction cup a (19) and the rotating suction cup b (17) coaxially located therebetween; Step 4, a spherical arc disk (12) adsorbed on the lower side of the transfer suction cup (21) is adsorbed by the b rotating suction cup (17), so that the transfer suction cup (21) is separated from the b spherical arc disk (12b) adsorbed by the b rotating suction cup (17) below; Step 5, the spherical arc disk (12a) is tightly clamped between the rotating suction cup (19) and the transfer suction cup (21); The b telescopic rod (27) is extended downward to allow the suction cup assembly (25) to absorb the uppermost spherical arc surface flap (39) of the spherical surface flap pile (22), and then the b telescopic rod (27) is controlled to retract upward to a sufficient length, and then the b transverse rotation axis (28) is controlled to rotate 90 degrees counterclockwise, and then the b telescopic rod (27) is controlled to gradually extend until the center of the spherical arc surface flap (39) absorbed by the suction cup assembly (25) is translated to coincide with the center of the target ball (60); An arc-shaped welding gap a (40.1) is formed between the upper end contour of the spherical arc surface petal (39) sucked by the suction cup assembly (25) and the outer contour of the spherical arc surface disc a (12a); A circular arc-shaped welding gap (40.2) is formed between the lower end contour of the spherical arc surface petal (39) sucked by the suction cup assembly (25) and the outer contour of the spherical arc surface disc (12b); Step six, achieving welding of the arc-shaped welding gap (40.1); Step 7, achieving welding of the arc-shaped b welding gap (40.2); Step eight, welding the upper and lower ends of the second spherical arc surface petal (39) to the spherical arc surface disc a (12a) and the spherical arc surface disc b (12b) into one body; Step nine, continuously repeating step eight, so that the a spherical arc surface disk (12a), the b spherical arc surface disk (12b) and a plurality of spherical arc surface petals (39) are spliced ​​together to form a complete spherical shell (41); An arc-shaped c welding gap (40.3) is formed between any two adjacent spherical arc surface petals (39) to wait for welding; at this time, the gear drive motor (34) is controlled to drive the transmission gear body (18) to drive the a rotating suction cup (19) and the complete spherical shell (41) to rotate, so that the axis of a circular arc-shaped c welding gap (40.3) on the complete spherical shell (41) coincides with the a horizontal rotation axis (8), and this c welding gap (40.3) is recorded as the c welding gap (40.3a) to be welded; Step 10, achieving complete welding of the welding gap (40.3a) to be welded c; Step eleven, the complete ball shell (41) can be taken out smoothly.

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