Cold-roll steel sheet laser welding processing system and method

Abstract

The invention relates to the technical field of laser welding, in particular to a cold-roll steel sheet laser welding machining system and method, the cold-roll steel sheet laser welding machining system is matched with the cold-roll steel sheet laser welding machining system for completion, and the cold-roll steel sheet laser welding machining system comprises a first rectangular plate, a working platform, a lifting clamping mechanism, a wheel disc clamping mechanism and a feeding auxiliary mechanism. According to the laser welding machining system and method for the cold-rolled steel sheets, the adopted lifting clamping mechanism is provided with the wheel disc clamping mechanism and the feeding auxiliary mechanism which are matched, the multiple blades can be driven to swing by a proper angle, then the multiple blades are jointly clamped through the multiple first arc-shaped clamping plates, and the machining efficiency is improved. The problem that the angles of the blades are not consistent when the blades are manually and sequentially placed during manual welding is solved, the front wheel disc and the rear wheel disc can be clamped, the multiple blades and multiple welding positions of the front wheel disc and the rear wheel disc are welded at the same time, manual sequential welding is not needed, and the welding efficiency and the welding quality of the multiple blades and the front wheel disc and the rear wheel disc are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser welding, and in particular to a cold-rolled steel plate laser welding processing system and method. Background Art

[0002] Centrifugal fans are widely used in industrial production, especially in ventilation, exhaust, refrigeration and heating systems. The impeller of a centrifugal fan usually consists of multiple blades and two front and rear discs. These parts work at high speeds and are subjected to large centrifugal forces and aerodynamic loads. The welding quality will directly affect the performance and service life of the fan, and high-strength welding is usually required between the multiple blades and the front and rear discs.

[0003] In the existing welding between the blades and the front and rear discs, due to the large number of blades to be welded and their special shapes, the front and rear discs can only be effectively clamped, and supporting blades need to be manually installed in sequence, and then the connections between the blades and the front and rear discs are welded in sequence. The inclination angle of the blade determines the flow path and flow rate of the airflow, which is a key factor affecting the efficiency of the fan. Manually installed supporting welding may result in inconsistent inclination angles of multiple blades. The welding efficiency and welding quality between the blades and the front and rear discs need to be improved. Summary of the invention

[0004] Technical problem to be solved: The present invention provides a cold-rolled steel plate laser welding processing system and method, which can solve the above-mentioned problems.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a cold-rolled steel plate laser welding processing system, including a rectangular plate 1, a working platform with a circular mounting opening in the middle installed on the upper end of the rectangular plate 1, a lifting and clamping mechanism is arranged on the working platform, a wheel clamping mechanism is arranged on the working platform, and a feeding auxiliary mechanism is arranged on the rectangular plate 1 and the working platform.

[0006] The lifting and clamping mechanism includes a rectangular plate 2 with a circular mounting hole in the middle part arranged on the upper side of the working platform, a lifting part is arranged on the working platform and the rectangular plate 2, a circular plate 1 is arranged on the lower side of the rectangular plate 2, and a plurality of arc-shaped support plates evenly distributed in a circle are installed on the lower end of the rectangular plate 2. A blade clamping part is arranged on the rectangular plate 2, the circular plate 1 and the plurality of arc-shaped support plates, and a wheel clamping part 1 is arranged on the blade clamping part. The wheel clamping mechanism includes a rectangular slide symmetrically opened at the front and rear ends of the upper side of the working platform, a rectangular through hole is arranged on the right side of the inner wall of the opposite ends of the front and rear rectangular slides, and a wheel clamping part 2 is arranged on the rectangular through hole and the working platform. The feeding auxiliary mechanism includes a rectangular feed port opened at the left end of the working platform, the rectangular feed port is connected to the circular mounting port of the working platform, a circular column is rotatably installed in the circular mounting port of the working platform, an auxiliary limiting part is arranged on the circular column, and a rotating lifting part is arranged on the rectangular plate 1, the working platform and the circular column.

[0007] Preferably, the blade clamping part includes a barrel-shaped mounting seat rotatably mounted in a circular mounting hole on the second rectangular plate, a passive gear ring is fixedly sleeved on the outer wall of the barrel-shaped mounting seat and rotatably connected to the lower end of the second rectangular plate, a forward and reverse motor is installed in the barrel-shaped mounting seat, the output shaft of the forward and reverse motor rotates and passes through the barrel-shaped mounting seat, and is fixedly connected to a transmission shaft, the first circular plate is fixedly sleeved on the transmission shaft, a second circular plate is rotatably mounted on a lower end of the circular plate, the second circular plate is rotatably sleeved on the transmission shaft, an arc-shaped waist hole is symmetrically opened on the upper end of the first circular plate, and two front and rear support rods fixedly connected to the barrel-shaped mounting seat are installed on the upper end of the second circular plate, the front support rod is fixedly sleeved on the transmission shaft, and the front support rod is fixedly sleeved on the transmission shaft. The rear two support rods are respectively slidably connected to the corresponding arc-shaped waist holes, and a blade clamping group is commonly provided on the circular plate one and the circular plate two. The blade clamping group includes a plurality of guide sliding holes one which are evenly distributed in a circle and opened at the upper end of the circular plate one, a plurality of arc-shaped waist holes two which are evenly distributed in a circle and opened at the upper end of the circular plate two, a plurality of arc-shaped clamping plates one which are evenly distributed in a circle and arranged on the lower side of the circular plate two, an arc-shaped connecting plate is installed at one end of the arc-shaped clamping plate one which faces the corresponding arc-shaped waist hole two, a connecting sliding rod one which has a limiting circular plate on the upper end is installed on the upper end of the arc-shaped connecting plate, and the connecting sliding rod one is slidably connected to the corresponding arc-shaped waist hole two and the guide sliding hole one.

[0008] Preferably, the blade clamping part also includes a forward and reverse motor 2 installed on the rectangular plate 2, the output shaft of the forward and reverse motor 2 is fixedly connected to a gear column, the cross-sections of the multiple arc support plates are all L-shaped, and the multiple arc support plates are commonly installed with an annular plate at one end away from the rectangular plate 2, and a transmission gear ring is rotatably installed on the upper end of the annular plate, and the transmission gear ring is meshed with the gear column, and a blade clamping group is also commonly provided on the annular plate and the transmission gear ring. The difference is that the arc clamping plates on the upper and lower sides are facing opposite directions, and the upper arc clamping plate 1 is located at the lower side of the circular plate 2, and the lower arc clamping plate 1 is located at the upper side of the transmission gear ring.

[0009] Preferably, the wheel clamping part 1 includes a circular plate 3 fixedly mounted on the outer wall of the transmission shaft at the upper side position of the circular plate 1, a plurality of arc-shaped waist holes 3 uniformly distributed around the circumference are opened on the upper end of the circular plate 3, a plurality of guide sliding holes 2 uniformly distributed around the circumference are opened on the upper end of the passive gear ring, a plurality of waist-shaped connecting rods uniformly distributed around the circumference are arranged on the upper end of the circular plate 3, a connecting sliding rod 2 is installed through one end of the waist-shaped connecting rod located on the circular plate 3, the connecting sliding rod 2 is slidably connected to the corresponding arc-shaped waist hole 3 and the guide sliding hole 2, a support rod 2 is installed at the lower end of the other end of the waist-shaped connecting rod, an arc-shaped splint 1 is installed at the lower end of the support rod 2, an arc-shaped waist hole 1 is also symmetrically opened on the upper end of the circular plate 3, and the front and rear support rods 1 are also slidably connected to the two arc-shaped waist holes 1 on the circular plate 3.

[0010] Preferably, the auxiliary limiting portion includes a plurality of storage slots evenly distributed in a circle formed on the outer wall of the circular column, a plurality of fan-shaped mounting slots evenly distributed in a circle formed on the upper end of the circular column, the plurality of fan-shaped mounting slots and the plurality of storage slots are staggered, the plurality of storage slots are slidably connected with a fan-shaped base via a tension spring, two supporting uprights are symmetrically rotatably installed on the fan-shaped base via a torsion spring (not shown in the drawings), limiting baffles are installed on the upper ends of the two supporting uprights, a transmission gear is installed on the lower end of the circular column, circular through holes are provided at the lower end of the transmission gear at positions corresponding to the plurality of fan-shaped mounting slots and the plurality of storage slots, and the plurality of circular through holes are respectively connected to the corresponding fan-shaped mounting slots and the storage slots.

[0011] Preferably, the rotating lifting part includes a No. 1 motor installed at the lower end of the working platform through a motor seat, the output shaft of the No. 1 motor is fixedly connected with an incomplete gear 1, the incomplete gear 1 is meshed with a transmission gear, a forward and reverse motor 3 is installed on a rectangular plate 1, the output shaft of the forward and reverse motor 3 is fixedly connected with a lead screw 1, the upper end of the lead screw 1 is rotatably connected to the transmission gear, the lead screw 1 is threadedly connected with a mounting plate, an annular slide groove 1 is provided at the upper end of the mounting plate, an annular mounting plate is rotatably installed at the position of the annular slide groove 1 on the upper end of the mounting plate, and the circular through holes corresponding to the plurality of storage tanks are slid into the grooves. A supporting slide bar is dynamically installed, and multiple supporting slide bars are fixed and penetrate through the annular mounting plate, and the lower ends of the multiple supporting slide bars are slidably connected to the annular slide groove 1, and the upper ends of the multiple supporting slide bars are installed with a top material plate slidably connected to the corresponding storage trough, and the upper end of the annular mounting plate is installed with multiple top rods evenly distributed in a circle, and the multiple top rods and the multiple supporting slide bars are staggered. A limiting slide bar 1 is installed on the upper end of the rectangular plate 1 on both the front and rear sides of the forward and reverse motor 3, and an annular slide groove 2 is opened at the lower end of the transmission gear, and the upper ends of the front and rear two limiting slide bars 1 are slidably connected to the annular slide groove 2.

[0012] Preferably, the second wheel clamping part includes a double-axis motor installed on the inner wall of the rectangular through hole through a motor seat, the front and rear output shafts of the double-axis motor are respectively fixedly connected with a screw 2, and support vertical plates are slidably installed in the front and rear rectangular slide grooves, the front and rear screws are respectively threadedly connected to the corresponding support vertical plates, and clamping plates are symmetrically installed on the front and rear upper ends of the front and rear support vertical plates. Left and right bearing seats are installed on the opposite sides of the inner walls of the bottom ends of the front and rear rectangular slide grooves, and the opposite ends of the front and rear screws are respectively rotatably connected to the corresponding bearing seats, and a limiting slide bar 2 is installed on the left side of the inner wall of the rectangular slide groove, which slides through the corresponding support vertical plate, and the end of the limiting slide bar 2 away from the corresponding support vertical plate is fixedly connected to the corresponding bearing seat.

[0013] Preferably, the lifting and clamping mechanism further comprises a forward and reverse motor four mounted on the rectangular plate two, the output shaft of the forward and reverse motor four being fixedly connected to an incomplete gear two, and the incomplete gear two is meshed with the passive gear ring.

[0014] Preferably, the lifting part includes two hydraulic push rods installed on the upper end of the working platform and distributed diagonally in a rectangular shape, the telescopic ends of the two hydraulic push rods are fixedly connected to the rectangular plate 2, and two auxiliary sliding rods installed on the upper end of the working platform and distributed diagonally in a rectangular shape, the upper ends of the two auxiliary sliding rods slide through the rectangular plate 2, and a limiting circular plate is installed.

[0015] Preferably, the present invention further provides a cold-rolled steel plate laser welding processing method, which is completed by using a cold-rolled steel plate laser welding processing system, and includes the following steps:

[0016] S1: Blade loading: Multiple blades are transported to multiple storage troughs on the circular column through a loading auxiliary mechanism.

[0017] S2: Push in the front wheel disc: Push the front wheel disc to the upper end of the circular column, clamp it in place with the wheel disc clamping mechanism, and then control the wheel disc clamping mechanism to release and return to its original position.

[0018] S3: Clamping blades and front wheel disc: Through the cooperation of the feeding auxiliary mechanism and the lifting clamping mechanism, multiple blades are conveyed upward, and multiple blades and the front wheel disc are clamped at the same time.

[0019] S4: Push in and clamp the rear wheel disc: push the rear wheel disc to the upper end of the circular column and clamp it through the wheel disc clamping mechanism.

[0020] S5: Welding: Two external automatic welding robot arms simultaneously weld multiple blades and multiple welding positions of the front and rear wheel discs.

[0021] S6: Take out the fan impeller. After welding is completed, take out the fan impeller.

[0022] Beneficial effects: 1. The auxiliary feeding mechanism and peripheral feeding equipment used in the cold-rolled steel plate laser welding processing system and method provided by the present invention can sequentially convey multiple blades to the corresponding storage troughs, thereby completing the uniform feeding of the blades, and the wheel clamping mechanism can position the front wheel disc so that it is located directly above the circular column, which is convenient for subsequent multiple blades to drive the front wheel disc to rise synchronously for feeding, thereby avoiding the time-consuming and labor-intensive problem of manually placing the blades one by one during manual welding.

[0023] 2. The lifting and clamping mechanism and the feeding auxiliary mechanism adopted in the cold-rolled steel plate laser welding processing system and method provided by the present invention can drive multiple blades to move upward while driving multiple limit baffles to move upward synchronously, thereby avoiding the problem of multiple blades tilting and collapsing, and the multiple blades will drive the front wheel disc to move upward synchronously, and can control the circular plate 2 to move downward so that it fits with the upper end of the front wheel disc, which is convenient for the subsequent clamping of the blades and the front wheel disc.

[0024] 3. The lifting and clamping mechanism used in the cold-rolled steel plate laser welding processing system and method provided by the present invention cooperates with the wheel clamping mechanism and the feeding auxiliary mechanism, which can first drive the multiple blades to swing to a suitable angle, and then use the multiple arc-shaped clamping plates on the upper and lower sides to clamp the multiple blades together, so as to avoid the problem of inconsistent inclination angles of the blades placed manually in sequence during manual welding, and can clamp the front and rear wheels at the same time, and weld multiple welding positions of the multiple blades and the front and rear wheels at the same time, without the need for manual welding in sequence, effectively improving the welding efficiency and welding quality of the multiple blades and the front and rear wheels. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Figure 1 It is a first stereoscopic structural schematic diagram of the cold-rolled steel plate laser welding processing system of the present invention.

[0027] Figure 2 It is a method flow chart of the cold-rolled steel plate laser welding processing method of the present invention.

[0028] Figure 3 It is a second three-dimensional structural schematic diagram of the cold-rolled steel plate laser welding processing system of the present invention.

[0029] Figure 4 It is a partial cross-sectional three-dimensional structural schematic diagram of a wheel clamping mechanism and a feeding auxiliary mechanism in the cold-rolled steel plate laser welding processing system of the present invention.

[0030] Figure 5 It is a schematic diagram of the first partial cross-section stereoscopic structure of the feeding auxiliary mechanism in the cold-rolled steel plate laser welding processing system of the present invention.

[0031] Figure 6 It is a schematic diagram of the second partial cross-section stereoscopic structure of the feeding auxiliary mechanism in the cold-rolled steel plate laser welding processing system of the present invention.

[0032] Figure 7 The present invention Figure 6 Enlarged view of the X in the middle.

[0033] Figure 8 It is a three-dimensional structural schematic diagram of the lifting and clamping mechanism in the cold-rolled steel plate laser welding processing system of the present invention.

[0034] Fig. 9 It is a schematic diagram of the first partial cross-section stereoscopic structure of the lifting and clamping mechanism in the cold-rolled steel plate laser welding processing system of the present invention.

[0035] Fig.10 The present invention Fig. 9 Enlarged view of Y in the middle.

[0036] Fig.11 It is a schematic diagram of the second partial cross-section stereoscopic structure of the lifting and clamping mechanism in the cold-rolled steel plate laser welding processing system of the present invention.

[0037] Fig.12 It is a three-dimensional structural schematic diagram of a wheel clamping part in the cold-rolled steel plate laser welding processing system of the present invention.

[0038] Fig.13 It is a schematic diagram of a partially cutaway three-dimensional structure of a wheel clamping portion in the cold-rolled steel plate laser welding processing system of the present invention.

[0039] Fig.14 It is a schematic diagram of the partial cross-sectional three-dimensional structure of circular plate one, circular plate two and circular plate three in the cold-rolled steel plate laser welding processing system of the present invention.

[0040] In the figure: 1, rectangular plate 1; 2, working platform; 3, lifting and clamping mechanism; 31, rectangular plate 2; 32, lifting part; 321, hydraulic push rod; 322, auxiliary slide rod; 33, circular plate 1; 34, arc-shaped support plate; 35, blade clamping part; 351, barrel-shaped mounting seat; 352, passive gear ring; 353, forward and reverse motor 1; 354, transmission shaft; 355, circular plate 2; 356, arc-shaped waist hole 1; 357, support rod 1; 358, guide slide hole 1; 359, arc waist hole 2; 360, arc splint 1; 361, arc connecting plate; 362, connecting slide bar 1; 363, forward and reverse motor 2; 364, gear column; 365, ring plate; 366, transmission gear ring; 37, wheel clamping part 1; 371, round plate 3; 372, arc waist hole 3; 373, guide slide hole 2; 374, waist connecting rod; 375, connecting slide bar 2; 376, support rod 2; 377, arc splint 2; 38, forward and reverse motor Machine 4; 39, incomplete gear 2; 4, wheel clamping mechanism; 41, rectangular slide; 42, rectangular through hole; 43, wheel clamping part 2; 431, double-axis motor; 432, lead screw 2; 433, support plate; 434, clamping plate; 435, bearing seat; 436, limit slide bar 2; 5, feeding auxiliary mechanism; 51, rectangular feed port; 52, circular column; 53, auxiliary limit part; 531, storage trough; 532, fan-shaped mounting groove; 533, fan-shaped Base; 534, supporting upright; 535, limiting baffle; 536, transmission gear; 537, circular through hole; 54, rotating lifting part; 541, motor No. 1; 542, incomplete gear No. 1; 543, forward and reverse motor No. 3; 544, lead screw No. 1; 545, mounting plate; 546, annular slide No. 1; 547, annular mounting plate; 548, supporting slide rod; 549, ejector plate; 550, ejector rod; 551, limiting slide rod No. 1; 552, annular slide No. 2. DETAILED DESCRIPTION

[0041] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0042] See also Figure 1 A cold-rolled steel plate laser welding processing system comprises a rectangular plate 1, a working platform 2 with a circular mounting opening in the middle is installed on the upper end of the rectangular plate 1, a lifting clamping mechanism 3 is arranged on the working platform 2, a wheel clamping mechanism 4 is arranged on the working platform 2, and a feeding auxiliary mechanism 5 is arranged on the rectangular plate 1 and the working platform 2.

[0043] See also Figure 1 , Figure 3 and Figure 4The lifting and clamping mechanism 3 includes a rectangular plate 2 31 with a circular mounting hole in the middle provided on the upper side of the working platform 2, a lifting part 32 is provided on the working platform 2 and the rectangular plate 2 31, a circular plate 1 33 is provided on the lower side of the rectangular plate 2 31, and a plurality of arc-shaped support plates 34 evenly distributed in a circumference are installed on the lower end of the rectangular plate 2 31, a blade clamping part 35 is provided on the rectangular plate 2 31, the circular plate 1 33 and the plurality of arc-shaped support plates 34, and a wheel clamping part 1 37 is provided on the blade clamping part 35. The wheel clamping mechanism 4 includes a rectangular chute 41 symmetrically provided on the front and rear ends of the upper end of the working platform 2, a rectangular through hole 42 is provided on the right side of the inner wall of the opposite ends of the front and rear rectangular chute 41, and a wheel clamping part 2 43 is provided on the rectangular through hole 42 and the working platform 2. The feeding auxiliary mechanism 5 includes a rectangular feed port 51 opened at the left end of the working platform 2, the rectangular feed port 51 is connected to the circular mounting port of the working platform 2, a circular column 52 is rotatably installed in the circular mounting port of the working platform 2, an auxiliary limiting portion 53 is arranged on the circular column 52, and a rotating lifting portion 54 is commonly arranged on the rectangular plate 1, the working platform 2 and the circular column 52.

[0044] See also Figure 4 , Figure 5 , Figure 6 and Figure 7 The auxiliary limiting portion 53 includes a plurality of storage grooves 531 uniformly distributed in a circle formed on the outer wall of the circular column 52, a plurality of fan-shaped mounting grooves 532 uniformly distributed in a circle formed on the upper end of the circular column 52, the plurality of fan-shaped mounting grooves 532 and the plurality of storage grooves 531 are arranged alternately, the plurality of storage grooves 531 are all slidably connected with a fan-shaped base 533 through a tension spring, two supporting uprights 534 are symmetrically rotatably mounted on the fan-shaped base 533 through a torsion spring (not shown in the drawings), and a limiting baffle 535 is mounted on the upper ends of the two supporting uprights 534, a transmission gear 536 is mounted on the lower end of the circular column 52, and circular through holes 537 are arranged at the lower end of the transmission gear 536 corresponding to the positions of the plurality of fan-shaped mounting grooves 532 and the plurality of storage grooves 531, and the plurality of circular through holes 537 are respectively connected to the corresponding fan-shaped mounting grooves 532 and the storage grooves 531.

[0045] See also Figure 5 and Figure 6The rotating lifting part 54 includes a No. 1 motor 541 installed at the lower end of the working platform 2 through a motor seat, the output shaft of the No. 1 motor 541 is fixedly connected with an incomplete gear 542, the incomplete gear 542 is meshed with a transmission gear 536, a forward and reverse motor 3 543 is installed on the rectangular plate 1, the output shaft of the forward and reverse motor 3 543 is fixedly connected with a lead screw 544, the upper end of the lead screw 544 is rotatably connected to the transmission gear 536, the lead screw 544 is threadedly connected with a mounting plate 545, the upper end of the mounting plate 545 is provided with an annular groove 546, the upper end of the mounting plate 545 is rotatably mounted with an annular mounting plate 547 corresponding to the position of the annular groove 546, corresponding to the circular through holes 537 of the plurality of storage troughs 531 A supporting slide bar 548 is installed in the inner sliding movement, and multiple supporting slide bars 548 are fixed and penetrate through the annular mounting plate 547, and the lower ends of multiple supporting slide bars 548 are slidably connected in the annular slide groove 546, and the upper ends of multiple supporting slide bars 548 are installed with a top material plate 549 slidably connected in the corresponding storage trough 531, and the upper end of the annular mounting plate 547 is installed with multiple top rods 550 evenly distributed in a circle, and the multiple top rods 550 and multiple supporting slide bars 548 are staggered. A limiting slide bar 551 is installed on the front and rear sides of the forward and reverse motor 3 543 at the upper end of the rectangular plate 1, and an annular slide groove 2 552 is opened at the lower end of the transmission gear 536, and the upper ends of the front and rear two limiting slide bars 551 are slidably connected in the annular slide groove 2 552.

[0046] See also Figure 1 and Figure 4 The second wheel clamping part 43 includes a double-axis motor 431 installed on the inner wall of the rectangular through hole 42 through a motor seat, and the front and rear output shafts of the double-axis motor 431 are respectively fixedly connected with a second lead screw 432, and the front and rear rectangular slide grooves 41 are both slidably installed with support vertical plates 433, and the front and rear lead screws 432 are respectively threadedly connected to the corresponding support vertical plates 433, and the upper ends of the front and rear support vertical plates 433 are symmetrically installed with clamping plates 434, and the opposite sides of the inner walls of the bottom ends of the front and rear rectangular slide grooves 41 are respectively installed with left and right bearing seats 435, and the opposite ends of the front and rear lead screws 432 are respectively rotatably connected to the corresponding bearing seats 435, and a limiting slide rod 436 that slides through the corresponding support vertical plate 433 is installed on the left side of the inner wall of the rectangular slide groove 41, and the end of the limiting slide rod 436 away from the corresponding support vertical plate 433 is fixedly connected to the corresponding bearing seat 435.

[0047] First, the incomplete gear 1 542 is controlled to rotate intermittently through the No. 1 motor 541, and the incomplete gear 1 542 is transmitted with the transmission gear 536 to drive the circular column 52 to rotate intermittently. During this period, multiple storage troughs 531 will be connected with the rectangular feed port 51 in sequence. At the same time, the external loading equipment intermittently transports multiple blades to the rectangular feed port 51, and continues to push them inward to make them enter the corresponding storage troughs 531 until blades are transported in multiple storage troughs 531. At this time, multiple blades are respectively located on the corresponding top plate 549, and then the external loading equipment pushes the front wheel disc from left to right to the upper side of the circular column 52, and the front and rear two lead screws 2 432 are controlled to rotate forward by the dual-axis motor 431, and the front and rear two lead screws 2 432 respectively drive the corresponding clamping plates 43 4 approaches each other until the front and rear clamping plates 434 approach each other to jointly clamp the front wheel disc in position, at which time the front wheel disc is located directly above the circular column 52, and then the front and rear lead screws 432 are controlled to reverse by the dual-axis motor 431, and the front and rear lead screws 432 respectively drive the corresponding clamping plates 434 to move away from each other and return to their original positions, the feeding auxiliary mechanism 5 and the peripheral feeding equipment can sequentially convey the multiple blades to the corresponding storage tank 531, thereby completing the uniform feeding of the blades, and the wheel clamping mechanism 4 can align and clamp the front wheel disc so that it is located directly above the circular column 52, so that the subsequent multiple blades drive the front wheel disc to rise synchronously for feeding, thereby avoiding the time-consuming and labor-intensive problem of manually placing the blades in sequence during manual welding.

[0048] See also Figure 3 and Figure 8 The lifting part 32 includes two hydraulic push rods 321 installed on the upper end of the working platform 2 and distributed diagonally in a rectangular shape, the telescopic ends of the two hydraulic push rods 321 are fixedly connected to the rectangular plate 31, and two auxiliary sliding rods 322 installed on the upper end of the working platform 2 and distributed diagonally in a rectangular shape, the upper ends of the two auxiliary sliding rods 322 slide through the rectangular plate 31 and are installed with a limited position circular plate.

[0049] After the current wheel disc is located directly above the circular column 52, the forward and reverse motor 3 543 is first used to control the screw 1 544 to rotate forward, and the screw 1 544 drives the annular mounting plate 547 to move upward through the mounting plate 545. The annular mounting plate 547 will drive multiple supporting slide bars 548 and multiple ejector bars 550 to move upward synchronously, and the multiple supporting slide bars 548 respectively drive the blades to move upward through the corresponding ejector plates 549 until the multiple blades all move upward to exit the storage trough 531. During this period, the multiple ejector bars 550 will drive the corresponding two supporting uprights 534 and two limit baffles 535 to move upward synchronously through the fan-shaped base 533. At this time, the multiple limit baffles 535 will exit the corresponding fan-shaped mounting grooves 532, and the multiple blades are respectively located at two adjacent The two hydraulic push rods 321 are then controlled to jointly drive the rectangular plate 31 to move downward. At this time, the circular plate 33, the blade clamping part 35 and the wheel disc clamping part 37 will all move downward with the rectangular plate 31 until the circular plate 355 moves downward to a position that fits the upper end of the front wheel disc. The lifting and clamping mechanism 3 and the feeding auxiliary mechanism 5 cooperate to drive the multiple blades to move upward while driving the multiple limit baffles 535 to move upward synchronously, thereby avoiding the problem of multiple blades tilting and collapsing. The multiple blades will drive the front wheel disc to move upward synchronously, and the circular plate 355 can be controlled to move downward to fit the upper end of the front wheel disc, which is convenient for the subsequent clamping of the blades and the front wheel disc.

[0050] See also Figure 1 , Fig. 9 , Fig.10 and Fig.14The blade clamping portion 35 includes a barrel-shaped mounting seat 351 rotatably mounted in a circular mounting hole on the rectangular plate 31, a passive gear ring 352 rotatably connected to the lower end of the rectangular plate 31 is fixedly sleeved on the outer wall of the barrel-shaped mounting seat 351, a forward and reverse motor 353 is installed in the barrel-shaped mounting seat 351, the output shaft of the forward and reverse motor 353 rotates through the barrel-shaped mounting seat 351 and is fixedly connected to a transmission shaft 354, a circular plate 33 is fixedly sleeved on the transmission shaft 354, a circular plate 355 is rotatably mounted on the lower end of the circular plate 33, the circular plate 355 is rotatably sleeved on the transmission shaft 354, an arc-shaped waist hole 356 is symmetrically opened on the upper end of the circular plate 33, and two front and rear support rods 353 fixedly connected to the barrel-shaped mounting seat 351 are installed on the upper end of the circular plate 355. 7. The front and rear two support rods 357 are respectively slidably connected to the corresponding arc-shaped waist holes 356. The circular plate 33 and the circular plate 355 are jointly provided with a blade clamping group, which includes a plurality of guide sliding holes 358 evenly distributed in a circumference opened at the upper end of the circular plate 33, a plurality of arc-shaped waist holes 359 evenly distributed in a circumference opened at the upper end of the circular plate 355, and a plurality of arc-shaped clamping plates 360 evenly distributed in a circumference are arranged on the lower side of the circular plate 355. An arc-shaped connecting plate 361 is installed at one end of the arc-shaped clamping plate 360 ​​facing the corresponding arc-shaped waist hole 359. A connecting slide rod 362 with a limiting circular plate on the upper end is installed on the upper end of the arc-shaped connecting plate 361. The connecting slide rod 362 is slidably connected to the corresponding arc-shaped waist hole 359 and the guide sliding hole 358.

[0051] See also Figure 1 , Figure 8 , Fig. 9 and Fig.11 The blade clamping part 35 also includes a forward and reverse motor 2 363 installed on the rectangular plate 2 31, and the output shaft of the forward and reverse motor 2 363 is fixedly connected to a gear column 364. The cross-sections of the multiple arc support plates 34 are all L-shaped, and the ends of the multiple arc support plates 34 away from the rectangular plate 2 31 are jointly installed with an annular plate 365, and a transmission gear ring 366 is rotatably installed on the upper end of the annular plate 365. The transmission gear ring 366 is meshed with the gear column 364. The annular plate 365 and the transmission gear ring 366 are also jointly provided with a blade clamping group. The difference is that the arc clamping plates 1 360 on the upper and lower sides are facing oppositely, and the upper arc clamping plate 1 360 is located at the lower side of the circular plate 2 355, and the lower arc clamping plate 1 360 is located at the upper side of the transmission gear ring 366.

[0052] See also Figure 12-14The wheel clamping part 1 37 includes a circular plate 371 fixedly mounted on the outer wall of the transmission shaft 354 at the upper side of the circular plate 1 33, a plurality of arc-shaped waist holes 372 evenly distributed around the circumference are opened on the upper end of the circular plate 371, a plurality of guide sliding holes 2 373 evenly distributed around the circumference are opened on the upper end of the passive gear ring 352, a plurality of waist-shaped connecting rods 374 evenly distributed around the circumference are arranged on the upper end of the circular plate 371, and one end of the waist-shaped connecting rod 374 located on the circular plate 371 penetrates A connecting slide rod 2 375 is installed, and the connecting slide rod 2 375 is slidably connected to the corresponding arc-shaped waist hole 372 and the guide slide hole 2 373. A support rod 2 376 is installed at the lower end of the other end of the waist-shaped connecting rod 374, and an arc-shaped clamping plate 1 377 is installed at the lower end of the support rod 2 376. The upper end of the circular plate 371 is also symmetrically provided with an arc-shaped waist hole 1 356, and the front and rear support rods 1 357 are also slidably connected to the two arc-shaped waist holes 1 356 on the circular plate 371.

[0053] See also Figure 1 , Figure 3 and Figure 8 The lifting and clamping mechanism 3 also includes a forward and reverse motor 4 38 installed on the rectangular plate 2 31 , and the output shaft of the forward and reverse motor 4 38 is fixedly connected to an incomplete gear 2 39 , and the incomplete gear 2 39 is meshed with the passive gear ring 352 .

[0054] When the two hydraulic push rods 321 jointly drive the rectangular plate 31 to move downward, the circular plate 355, the annular plate 365 and the transmission gear ring 366 will all move downward with the rectangular plate 31. It should be noted that the multiple arc-shaped clamping plates 360 are initially in a retracted state. The transmission shaft 354 is first controlled to rotate forward by the forward and reverse motor 353, and the transmission shaft 354 drives the circular plate 33 to rotate. Under the cooperation of the arc-shaped waist hole 359 and the guide sliding hole 358, the multiple connecting slide rods 362 will respectively drive the corresponding arc-shaped clamping plates 360 to slide along the arc-shaped waist hole 359 until the arc-shaped clamping plates 360 corresponding to the connecting slide rods 362 are all moved to the end of the corresponding arc-shaped waist hole 359 away from the transmission shaft 354. At this time, the arc-shaped clamping plates 360 corresponding to the connecting slide rods 362 are 1 360 becomes extended state, and multiple blades are located between two adjacent arc-shaped clamping plates 1 360. During this period, the transmission shaft 354 will drive the circular plate 371 to rotate. Under the cooperation of the arc-shaped waist hole 372 and the guide slide hole 2 373, multiple connecting slide rods 2 375 will drive the corresponding support rods 2 376 to slide along the corresponding guide slide hole 2 373 through the corresponding waist-shaped connecting rod 374, until multiple connecting slide rods 2 375 all move to the end of the corresponding guide slide hole 2 373 close to the transmission shaft 354. At this time, multiple support rods 2 376 respectively drive the corresponding arc-shaped clamping plates 2 377 to follow and move toward the transmission shaft 354, and jointly clamp the front wheel disc. It should be noted that during this period, the two support rods 1 357 will respectively perform adaptive sliding compensation along the corresponding arc-shaped waist hole 1 356.

[0055] Then, the incomplete gear 2 39 and the passive gear ring 352 are controlled by the forward and reverse motor 4 38 to drive the passive gear ring 352 to rotate at a suitable angle. The passive gear ring 352 drives the transmission shaft 354 to rotate synchronously through the barrel-shaped mounting seat 351. The transmission shaft 354 drives the corresponding multiple arc-shaped clamping plates 1 360 to rotate synchronously through the circular plate 2 355. At this time, the corresponding multiple arc-shaped clamping plates 1 360 will jointly push the multiple blades to make the multiple blades follow the swing. During this period, the multiple blades will push the adjacent limit baffles 535 to make them also follow the swing. At the same time, through the forward and reverse motor 4 The reversing motor 2 363 controls the gear column 364 to rotate forward, and the gear column 364 is transmitted with the transmission gear ring 366 to drive the transmission gear ring 366 to rotate. Under the cooperation of the arc waist hole 2 359 and the guide sliding hole 1 358, the plurality of connecting slide rods 1 362 will respectively drive the corresponding arc splint 1 360 to slide along the arc waist hole 2 359 until the arc splint 1 360 corresponding to the connecting slide rod 1 362 moves to the end of the corresponding arc waist hole 2 359 close to the axis of the transmission gear ring 366. At this time, the arc splint 1 360 becomes extended state, and the multiple arc clamping plates 360 corresponding to the circular plate 1 33 and the multiple arc clamping plates 360 corresponding to the transmission gear ring 366 will clamp the multiple blades together and further adjust the swing angle of the blades. When the multiple blades and the front wheel disc are clamped, the two hydraulic push rods 321 are controlled to jointly drive the rectangular plate 2 31 to move upward and return to the original position. At this time, the multiple blades and the front wheel disc will move upward with it. At this time, the upper end faces of the multiple limit baffles 535 will be lower than the height of the lower end faces of the multiple blades. Under the action of the torsion spring, the multiple limit baffles 535 will return to its original position, and then the forward and reverse motor three 543 will control the lead screw one 544 to reverse, and the lead screw one 544 will drive the annular mounting plate 547 to move downward through the mounting plate 545, and the annular mounting plate 547 will drive multiple supporting slide rods 548 and multiple push rods 550 to move downward synchronously until they return to the corresponding fan-shaped mounting grooves 532 and storage grooves 531 and return to their original positions. During this period, under the action of the tension spring, the fan-shaped base 533 will drive the corresponding two supporting uprights 534 and two limit baffles 535 to move downward synchronously and return to their original positions.

[0056] Then, the rear wheel disc is pushed from left to right to the upper side of the circular column 52 by the external loading equipment, and the front and rear two lead screws 432 are controlled to rotate forward by the dual-axis motor 431, and the front and rear two lead screws 432 respectively drive the corresponding clamping plates 434 to approach each other, until the front and rear clamping plates 434 approach each other and clamp the rear wheel disc together. At this time, the front wheel disc is located directly above the circular column 52, and then the two hydraulic push rods 321 are controlled to jointly drive the rectangular plate 2 31 to move downward until the lower end faces of the multiple blades are tightly fitted with the upper end face of the rear wheel disc, and the two external automatic welding manipulators can simultaneously weld the blades and the connection positions of the front and rear wheel discs. After welding is completed, the transmission shaft 354 is controlled to reverse by the forward and reverse motor 1 353. At this time, the multiple arc-shaped clamping plates 1 360 corresponding to the disc 1 will become retracted and return to their original positions, and the multiple arc-shaped clamping plates 1 360 will also release the front wheel disc and return to their original positions, and then the forward and reverse motor 2 The gear column 363 controls the gear column 364 to reverse, at which time the arc-shaped clamping plates 360 corresponding to the transmission gear ring 366 will become retracted and return to their original positions, and the front and rear two lead screws 432 will continue to be controlled by the dual-axis motor 431 to reverse, and the front and rear two lead screws 432 will respectively drive the corresponding clamping plates 434 to move away from each other and return to their original positions, so that the welded fan impeller can be taken out by the external material taking equipment, and the lifting clamping mechanism 3, the wheel clamping mechanism 4 and the feeding auxiliary mechanism 5 can cooperate to first drive the multiple blades to swing to a suitable angle, and then use the multiple arc-shaped clamping plates 360 on the upper and lower sides to clamp the multiple blades together, so as to avoid the problem of inconsistent inclination angles of the blades manually placed in sequence during manual welding, and the front and rear wheels can be clamped at the same time, and multiple welding positions of multiple blades and the front and rear wheels can be welded at the same time, without manual welding in sequence, effectively improving the welding efficiency and welding quality of multiple blades and the front and rear wheels.

[0057] See also Figure 2 In addition, the present invention also provides a cold-rolled steel plate laser welding processing method, which is completed by using a cold-rolled steel plate laser welding processing system, and includes the following steps:

[0058] S1: Blade loading: Multiple blades are transported to multiple storage troughs 531 on the circular column 52 through an external loading device.

[0059] S2: Pushing in the front wheel disc: Pushing the front wheel disc to the upper end of the circular column 52, clamping the wheel disc clamping mechanism 4 in position, and then controlling the wheel disc clamping mechanism 4 to release and restore to the original position.

[0060] S3: Clamping the blades and the front wheel disc: The multiple blades are conveyed upwards and the multiple blades and the front wheel disc are clamped at the same time through the cooperation of the feeding auxiliary mechanism 5 and the lifting clamping mechanism 3.

[0061] S4: Push in and clamp the rear wheel disc: push the rear wheel disc to the upper end of the circular column 52 and clamp it through the wheel disc clamping mechanism 4.

[0062] S5: Welding: Two external automatic welding robot arms simultaneously weld multiple blades and multiple welding positions of the front and rear wheel discs.

[0063] S6: Take out the fan impeller: After welding is completed, take out the fan impeller.

[0064] In the description of the embodiments of the present invention, it should be noted that the terms: "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "outer", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. In addition, in the description of the present invention, unless otherwise specified, "multiple", "multiple roots", and "multiple groups" mean two or more.

[0065] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cold-rolled steel plate laser welding processing system, comprising a rectangular plate (1), a working platform (2) with a circular mounting opening in the middle installed on the upper end of the rectangular plate (1), characterized in that: The working platform (2) is provided with a lifting and clamping mechanism (3), the working platform (2) is provided with a wheel clamping mechanism (4), and the rectangular plate (1) and the working platform (2) are provided with a feeding auxiliary mechanism (5); The lifting and clamping mechanism (3) comprises a rectangular plate (31) with a circular mounting hole in the middle arranged on the upper side of the working platform (2); a lifting portion (32) is arranged on the working platform (2) and the rectangular plate (31); a circular plate (33) is arranged on the lower side of the rectangular plate (31); a plurality of arc-shaped support plates (34) evenly distributed in a circumference are installed on the lower end of the rectangular plate (31); a blade clamping portion (35) is arranged on the rectangular plate (31), the circular plate (33) and the plurality of arc-shaped support plates (34); and a wheel disc clamping portion (37) is arranged on the blade clamping portion (35); The wheel disc clamping mechanism (4) comprises a rectangular slide groove (41) symmetrically provided at the front and rear ends of the upper end of the working platform (2); a rectangular through hole (42) is provided on the right side of the inner wall of the opposite ends of the front and rear rectangular slide grooves (41); and a second wheel disc clamping part (43) is provided on the rectangular through hole (42) and the working platform (2); The feeding auxiliary mechanism (5) comprises a rectangular feeding port (51) opened at the left end of the working platform (2), the rectangular feeding port (51) being connected to the circular mounting port of the working platform (2), a circular column (52) being rotatably mounted in the circular mounting port of the working platform (2), an auxiliary limiting portion (53) being arranged on the circular column (52), and a rotating lifting portion (54) being commonly arranged on the rectangular plate 1 (1), the working platform (2) and the circular column (52).

2. The cold-rolled steel plate laser welding processing system according to claim 1, characterized in that: The blade clamping portion (35) comprises a barrel-shaped mounting seat (351) rotatably mounted in a circular mounting hole on the second rectangular plate (31); a passive gear ring (352) rotatably connected to the lower end of the second rectangular plate (31) is fixedly sleeved on the outer wall of the barrel-shaped mounting seat (351); a forward and reverse motor (353) is mounted in the barrel-shaped mounting seat (351); an output shaft of the forward and reverse motor (353) rotatably penetrates the barrel-shaped mounting seat (351); The first circular plate (33) is fixedly mounted on the transmission shaft (354), the lower end of the first circular plate (33) is rotatably mounted with a second circular plate (355), the second circular plate (355) is rotatably mounted on the transmission shaft (354), the upper end of the first circular plate (33) is symmetrically provided with an arc-shaped waist hole (356), and the upper end of the second circular plate (355) is mounted with two front and rear support rods (356) fixedly connected to the barrel-shaped mounting seat (351). 357), the front and rear support rods 1 (357) are respectively slidably connected to the corresponding arc-shaped waist holes 1 (356), the circular plate 1 (33) and the circular plate 2 (355) are jointly provided with a blade clamping group, the blade clamping group includes a plurality of guide sliding holes 1 (358) evenly distributed in a circumference opened at the upper end of the circular plate 1 (33), a plurality of arc-shaped waist holes 2 (359) evenly distributed in a circumference opened at the upper end of the circular plate 2 (355), and the circular plate 2 ( A plurality of arc-shaped clamping plates (360) evenly distributed in a circumference are arranged on the lower side of the arc-shaped clamping plate (355), an arc-shaped connecting plate (361) is installed at one end of the arc-shaped clamping plate (360) facing the corresponding arc-shaped waist hole (359), and a connecting slide rod (362) with a limiting circular plate on the upper end is installed on the upper end of the arc-shaped connecting plate (361), and the connecting slide rod (362) is slidably connected to the corresponding arc-shaped waist hole (359) and the guide slide hole (358).

3. The cold-rolled steel plate laser welding processing system according to claim 1, characterized in that: The blade clamping part (35) further comprises a second forward and reverse motor (363) mounted on the second rectangular plate (31), the output shaft of the second forward and reverse motor (363) being fixedly connected to a gear column (364), the cross-sections of the plurality of arc-shaped support plates (34) are all L-shaped, an annular plate (365) is commonly mounted at one end of the plurality of arc-shaped support plates (34) away from the second rectangular plate (31), a transmission gear ring (366) is rotatably mounted on the upper end of the annular plate (365), the transmission gear ring (366) is meshed with the gear column (364), and a blade clamping group is also commonly arranged on the annular plate (365) and the transmission gear ring (366), the difference being that the arc-shaped clamping plates (360) on the upper and lower sides face opposite directions, the upper arc-shaped clamping plate (360) is located at the lower side of the second circular plate (355), and the lower arc-shaped clamping plate (360) is located at the upper side of the transmission gear ring (366).

4. The cold-rolled steel plate laser welding processing system according to claim 1, characterized in that: The wheel clamping part (37) comprises a circular plate (371) fixedly sleeved on the outer wall of the transmission shaft (354) at the upper side of the circular plate (33), a plurality of arc-shaped waist holes (372) evenly distributed in a circumference are opened on the upper end of the circular plate (371), a plurality of guide sliding holes (373) evenly distributed in a circumference are opened on the upper end of the passive gear ring (352), a plurality of waist-shaped connecting rods (374) evenly distributed in a circumference are arranged on the upper end of the circular plate (371), and one end of the waist-shaped connecting rod (374) located on the circular plate (371) penetrates and is installed There is a connecting slide rod 2 (375), which is slidably connected to the corresponding arc-shaped waist hole 3 (372) and the guide slide hole 2 (373). The lower end of the other end of the waist-shaped connecting rod (374) is installed with a support rod 2 (376), and the lower end of the support rod 2 (376) is installed with an arc-shaped clamping plate 2 (377). The upper end of the circular plate 3 (371) is also symmetrically opened with an arc-shaped waist hole 1 (356), and the front and rear support rods 1 (357) are also slidably connected to the two arc-shaped waist holes 1 (356) on the circular plate 3 (371).

5. The cold-rolled steel plate laser welding processing system according to claim 1, characterized in that: The auxiliary limiting portion (53) comprises a plurality of storage grooves (531) uniformly distributed in a circumference and provided on the outer wall of the circular column (52); a plurality of fan-shaped installation grooves (532) uniformly distributed in a circumference are provided on the upper end of the circular column (52); the plurality of fan-shaped installation grooves (532) and the plurality of storage grooves (531) are arranged in a staggered manner; the plurality of storage grooves (531) are all slidably connected to a fan-shaped base (533) via a tension spring; the fan-shaped base (533) is symmetrically rotated via a torsion spring. Two supporting uprights (534) are dynamically installed, and a limit baffle (535) is installed on the upper ends of the two supporting uprights (534). A transmission gear (536) is installed on the lower end of the circular column (52). Circular through holes (537) are opened at the positions of the lower end of the transmission gear (536) corresponding to the multiple fan-shaped installation grooves (532) and the multiple material storage grooves (531). The multiple circular through holes (537) are respectively connected to the corresponding fan-shaped installation grooves (532) and the material storage grooves (531).

6. The cold-rolled steel plate laser welding processing system according to claim 1, characterized in that: The rotating lifting part (54) comprises a first motor (541) installed at the lower end of the working platform (2) through a motor seat, the output shaft of the first motor (541) is fixedly connected to an incomplete gear (542), the incomplete gear (542) is meshed with a transmission gear (536), a forward and reverse motor (543) is installed on the first rectangular plate (1), the output shaft of the forward and reverse motor (543) is fixedly connected to a lead screw (544), the upper end of the lead screw (544) is rotatably connected to the transmission gear (536), the lead screw (544) is threadedly connected to a mounting plate (545), the upper end of the mounting plate (545) is provided with an annular groove (546), the upper end of the mounting plate (545) is rotatably mounted with an annular mounting plate (547) corresponding to the position of the annular groove (546), and the circular through holes (536) corresponding to the plurality of material storage troughs (531) are provided. 7) is slidably installed with a support slide bar (548), multiple support slide bars (548) are fixed and penetrated on the annular mounting plate (547), and the lower ends of the multiple support slide bars (548) are slidably connected in the annular slide groove 1 (546), and the upper ends of the multiple support slide bars (548) are installed with a top material plate (549) slidably connected in the corresponding storage tank (531), and the upper end of the annular mounting plate (547) is installed with multiple top rods (550) evenly distributed in a circle, and the multiple top rods (550) and the multiple support slide bars (548) are staggered. The upper end of the rectangular plate 1 (1) is installed with a limit slide bar 1 (551) on both sides of the forward and reverse motor 3 (543), and the lower end of the transmission gear (536) is provided with an annular slide groove 2 (552), and the upper ends of the front and rear two limit slide bars 1 (551) are slidably connected in the annular slide groove 2 (552).

7. The cold-rolled steel plate laser welding processing system according to claim 1, characterized in that: The second wheel clamping part (43) comprises a double-axis motor (431) mounted on the inner wall of the rectangular through hole (42) through a motor seat, the front and rear output shafts of the double-axis motor (431) are respectively fixedly connected with a second lead screw (432), the front and rear two rectangular slide grooves (41) are both slidably mounted with a support vertical plate (433), the front and rear two lead screws (432) are respectively threadedly connected to the corresponding support vertical plates (433), and the upper ends of the front and rear two support vertical plates (433) are symmetrically mounted with a clamping plate (431). 34), two left and right bearing seats (435) are installed on the opposite sides of the inner walls of the bottom ends of the front and rear rectangular slide grooves (41), and the opposite ends of the front and rear lead screws (432) are respectively rotatably connected to the corresponding bearing seats (435), and a limiting slide bar (436) is installed on the left side of the inner wall of the rectangular slide groove (41) and slides through the corresponding supporting vertical plate (433), and one end of the limiting slide bar (436) away from the corresponding supporting vertical plate (433) is fixedly connected to the corresponding bearing seat (435).

8. The cold-rolled steel plate laser welding processing system according to claim 1, characterized in that: The lifting and clamping mechanism (3) also includes a forward and reverse motor four (38) installed on the rectangular plate two (31), and the output shaft of the forward and reverse motor four (38) is fixedly connected to an incomplete gear two (39), and the incomplete gear two (39) is meshed with the passive gear ring (352).

9. The cold-rolled steel plate laser welding processing system according to claim 1, characterized in that: The lifting part (32) comprises two hydraulic push rods (321) installed on the upper end of the working platform (2) and distributed diagonally in a rectangular shape, the telescopic ends of the two hydraulic push rods (321) are fixedly connected to the second rectangular plate (31), and two auxiliary sliding rods (322) installed on the upper end of the working platform (2) and distributed diagonally in a rectangular shape, the upper ends of the two auxiliary sliding rods (322) slide through the second rectangular plate (31) and are installed with a limiting circular plate.

10. A cold-rolled steel plate laser welding method, characterized in that: The cold-rolled steel plate laser welding processing system as claimed in claim 5 is used to complete the process. The following steps are involved: S1: Blade loading: conveying a plurality of blades to a plurality of storage tanks (531) on a circular column (52) through an external loading device; S2: Pushing in the front wheel disc: pushing the front wheel disc to the upper end of the circular column (52), clamping the wheel disc clamping mechanism (4) in position, and then controlling the wheel disc clamping mechanism (4) to release and restore to the original position; S3: Clamping the blades and the front wheel disc: The plurality of blades are conveyed upwards and the plurality of blades and the front wheel disc are clamped at the same time by the cooperation of the feeding auxiliary mechanism (5) and the lifting clamping mechanism (3); S4: Pushing and clamping the rear wheel disc: pushing the rear wheel disc to the upper end of the circular column (52) and clamping it by the wheel disc clamping mechanism (4); S5: welding: two external automatic welding robot arms simultaneously weld multiple blades and multiple welding positions of the front and rear wheels; S6: Take out the fan impeller: After welding is completed, take out the fan impeller.

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