A water pump impeller welding device

Abstract

The application discloses a water pump impeller welding device, which comprises a front cover plate carrying assembly, a blade positioning assembly, an indexing turntable and a conveying belt. The application belongs to the technical field of impeller welding. The front cover plate carrying assembly realizes automatic grabbing and carrying of the front cover plate through telescopic columns, turnover rings and rotating discs. The blade positioning assembly adopts a bidirectional constraint structure to ensure the positioning accuracy of the blades. When the arc-shaped blades are pushed to the front cover plate through push piece rods, the upper ends are retained in the positioning discharge ports, forming bidirectional constraints and reducing welding deformation. The indexing turntable and the conveying belt cooperatively complete multi-station welding. The rear cover plate positioning grooves of the indexing turntable are optimally designed in height with the blades, so that the welding concentricity of the front and rear cover plates is ensured. The bidirectional constraint structure and the indexing turntable are designed to guarantee the welding parallelism and dynamic balance performance.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of impeller welding, and particularly relates to a water pump impeller welding device. BACKGROUND

[0002] The water pump impeller is composed of a rear cover plate, a front cover plate and a plurality of arc-shaped blades, and the welding procedure is as follows: the front cover plate and the blades are welded first, and then the welded parts are welded with the rear cover plate.

[0003] Since the thickness of the blades of the water pump impeller is relatively thin, the blades are prone to deformation due to the thermal stress of welding in the actual welding production of the water pump impeller, and then the following quality problems are caused: the flow channel size deviation caused by the radial deviation of the blades; the parallelism deviation of the front cover plate and the rear cover plate caused by the welding deformation; and the dynamic balance failure caused by the insufficient concentricity of the blades. These problems will directly cause the overall scrap of the impeller. SUMMARY

[0004] In view of the above problems, the water pump impeller welding device is provided to overcome the defects of the prior art.

[0005] The technical scheme adopted by the application is as follows: the water pump impeller welding device comprises a front cover plate carrying assembly, a blade positioning assembly, an indexing turntable and a conveying belt, the conveying belt is arranged on the left side, the right side and the front side of the indexing turntable respectively, the blade positioning assembly is arranged on the conveying belt on the left side of the indexing turntable, and the front cover plate carrying assembly is arranged between the indexing turntable and the conveying belt on the left side.

[0006] Further, the support plate is internally and symmetrically provided with a shaft sleeve, the support plate is centrally provided with a stop block sliding groove, the side wall of the stop block sliding groove is provided with a positioning sliding groove, the turnover ring is provided with a notch, the inner wall of the turnover ring is centrally provided with a ring groove, the two sides of the turnover ring are symmetrically provided with rotating columns, the rotating columns are provided with turnover ring transmission wheels, the rotating disc is provided with a gear ring and a suction disc rack, the suction disc rack is provided with telescopic suction discs, and the gear ring rotates in the ring groove.

[0007] Further, the front cover plate carrying assembly further comprises a positioning stop block, a rotating disc motor and a turnover driving assembly, the positioning stop block slides in the stop block sliding groove, the positioning stop block is centrally provided with a motor groove, the rotating disc motor is arranged in the motor groove, and the turnover driving assembly is arranged in the support plate.

[0008] Furthermore, a block return spring is provided on the rear side of the positioning block, the end of the block return spring is provided on the inner wall of the block slide groove, a block slide rail is provided on the side wall of the positioning block, the block slide rail slides in the positioning slide groove, a motor gear is provided on the turntable motor, the motor gear is located below the positioning block, and the motor gear is meshed with the gear ring.

[0009] Preferably, when the flip ring rotates to the positioning stop block, its side wall squeezes the bevel of the positioning stop block, causing the positioning stop block to compress the stop block return spring and slide into the stop block slot, while driving the motor gear below to avoid, preventing the motor gear from colliding with the flip ring and being damaged.

[0010] Furthermore, the flip drive assembly includes a transmission shaft and a flip motor, the transmission shaft passes through the block slide groove and rotates in the shaft sleeve, an inner transmission wheel is symmetrically provided on the inner side of the transmission shaft, and an outer transmission wheel is symmetrically provided at both ends of the transmission shaft, the outer transmission wheel is connected to the flip ring transmission wheel through a transmission chain, and a motor transmission wheel is provided on the flip motor, and the motor transmission wheel is connected to the inner transmission wheel through a transmission chain.

[0011] Preferably, the flip ring is driven to rotate by a flip motor to make the telescopic suction cup face downward, and then the telescopic column moves downward to make the suction cup extend out of the suction cup frame and adsorb the front cover plate, and then the suction cup is retracted and the telescopic column is moved upward, and the flip ring is reset, thereby realizing automatic grasping and handling of the front cover plate.

[0012] Furthermore, the blade positioning assembly includes a blade box and a blade push plate, the blade push plate is arranged in the blade box, the rear wall of the blade push plate is provided with a push plate spring, the end of the push plate spring is provided on the left inner wall of the blade box, the bottom of the blade box is provided with a support frame, the support frame is fixed on the conveyor belt below it, a positioning discharge port is provided on the right side of the bottom plate of the blade box, a cylinder frame is provided on the arc-shaped right wall of the blade box, a push rod slide groove is provided on the cylinder frame, and a baffle rotating seat is provided at the bottom of the blade box.

[0013] Furthermore, the blade positioning assembly also includes a feed port baffle, a feed port push rod and a push rod cylinder. The feed port baffle rotates on the baffle rotating seat, the feed port push rod slides in the push rod slot, the push rod cylinder is arranged on the cylinder frame, and the air rod of the push rod cylinder is connected to the feed port push rod.

[0014] Furthermore, the discharge port baffle rod is provided with a long rod, an oblique rod and a short rod, the long rod is located below the positioning discharge port, the connection between the long rod and the oblique rod rotates on the baffle rod rotating seat, the short rod is provided with a baffle rod return spring, the top of the baffle rod return spring is provided at the bottom of the blade box, the discharge push rod is provided with a positioning slide rod and a push rod, the positioning slide rod slides in the push rod slide groove, and the push rod is located above the positioning discharge port.

[0015] Preferably, the push rod cylinder drives the blanking push rod to move downward, and the arc blade is pushed from the positioning blanking port to the fitting position of the front cover plate through the push rod. The upper end of the arc blade remains in the positioning blanking port, forming a two-way constraint structure (anti-deformation design), and the blanking port baffle bar moves synchronously to prevent the blade from accidentally falling off. After completing the welding of the current blade, the flip ring moves downward to completely separate the blade from the positioning blanking port, and the turntable motor drives the gear ring to rotate, driving the front cover plate to the next welding station. The above process is repeated in a cycle until all arc blades are positioned and welded, thereby achieving the technical effect of positioning welding of all arc blades on the front cover plate.

[0016] Furthermore, a circular array on the indexing turntable is provided with a rear cover positioning groove, a rear cover positioning column is provided in the rear cover positioning groove, an arc-shaped baffle is provided at one end of the conveyor belt, and the arc-shaped baffle of the conveyor belt at the bottom of the blade positioning assembly is coaxial with the flip ring.

[0017] Preferably, the telescopic column rotates to drive the welded front cover to move to above the rear cover positioning slot of the indexing turntable, and the flip motor drives the flip ring to rotate so that the arc-shaped blades on the front cover face downward (the blade height is optimized and there is no interference from the support plate). The telescopic column is pressed down to make the arc-shaped blades fit the surface of the rear cover. After the welding of the current blade is completed, the turntable motor drives the rotating disk to switch to the next workstation, and the operation is cyclically repeated until all the arc-shaped blades are welded to the rear cover, thereby achieving the technical effect of precise positioning and welding of the rear cover and the arc-shaped blades.

[0018] The beneficial effects achieved by the present invention using the above structure are as follows:

[0019] 1. When the flip ring rotates to the positioning stop, its side wall squeezes the bevel of the positioning stop, causing the positioning stop to compress the stop return spring and slide into the stop slot, while driving the motor gear below to avoid collision with the flip ring to prevent damage.

[0020] 2. The flip motor drives the flip ring to rotate so that the telescopic suction cup faces downward, and then the telescopic column moves downward to make the suction cup extend out of the suction cup frame and adsorb the front cover. The suction cup is then retracted and the telescopic column moves upward, and the flip ring is reset, realizing automatic grabbing and handling of the front cover.

[0021] 3. The push rod cylinder drives the blanking push rod to move downward, and the arc blade is pushed from the positioning blanking port to the fitting position of the front cover through the push rod. The upper end of the arc blade remains in the positioning blanking port, forming a two-way constraint structure (anti-deformation design). The blanking port baffle moves synchronously to prevent the blade from accidentally falling off. After completing the welding of the current blade, the flip ring moves downward to completely separate the blade from the positioning blanking port. The turntable motor drives the gear ring to rotate, driving the front cover to the next welding station. The above process is repeated in a cycle until all arc blades are positioned and welded, thereby achieving the technical effect of positioning welding of all arc blades on the front cover.

[0022] 4. The telescopic column rotates, driving the welded front cover to move to the top of the rear cover positioning slot of the indexing turntable. The flip motor drives the flip ring to rotate so that the arc-shaped blades on the front cover face downward (the blade height is optimized and there is no interference from the support plate). The telescopic column presses down to make the arc-shaped blades fit the surface of the rear cover. After the current blade is welded, the turntable motor drives the rotating disk to switch to the next station, and the cycle operation is repeated until all the arc-shaped blades are welded to the rear cover, achieving the technical effect of precise positioning and welding of the rear cover and the arc-shaped blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of a water pump impeller welding device proposed by the present invention;

[0024] Figure 2 A top view of a water pump impeller welding device proposed by the present invention;

[0025] Figure 3 for Figure 2 A cross-sectional view along the cutting line AA;

[0026] Figure 4 This is a structural schematic diagram of a front cover plate carrying assembly of a water pump impeller welding device proposed by the present invention;

[0027] Figure 5 for Figure 4 A cross-sectional view along the cutting line BB;

[0028] Figure 6 for Figure 5 A cross-sectional view along the cutting line CC;

[0029] Figure 7 This is a schematic structural diagram of a blade positioning assembly of a water pump impeller welding device proposed by the present invention;

[0030] Figure 8 for Figure 7 A cross-sectional view along the cutting line DD;

[0031] Figure 9 This is a structural schematic diagram of a flip ring of a water pump impeller welding device proposed by the present invention;

[0032] Figure 10 This is a structural schematic diagram of a positioning block of a water pump impeller welding device proposed by the present invention;

[0033] Figure 11 This is a structural schematic diagram of a water pump impeller of a water pump impeller welding device proposed by the present invention.

[0034] Among them, 1. Front cover plate handling assembly, 11. Telescopic column, 111. Support plate, 1111. Bushing, 1112. Block slide, 1113. Positioning slide, 12. Flip ring, 121. Notch, 122. Ring groove, 123. Rotating column, 124. Flip ring transmission wheel, 13. Rotating disk, 131. Gear ring, 132. Suction cup frame, 133. Telescopic suction cup, 14. Positioning block, 141. Motor slot, 142. Block return spring, 143. Block slide rail, 15. Turntable motor, 151. Motor gear, 16. Flip drive assembly, 161. Drive shaft, 1611. Inner transmission wheel, 1612. Outer transmission wheel, 162. Flip motor, 1621 , motor drive wheel, 2, blade positioning assembly, 21, blade box, 211, support frame, 212, positioning discharge port, 213, cylinder frame, 2131, push rod slide, 214, baffle rotating seat, 22, blade push plate, 221, push plate spring, 23, discharge port baffle, 231, long rod, 232, oblique rod, 233, short rod, 234, baffle return spring, 24, discharge push rod, 241, positioning slide, 242, push rod, 25, push rod cylinder, 3, indexing turntable, 31, rear cover positioning groove, 32, rear cover positioning column, 4, water pump impeller, 41, front cover, 42, curved blades, 43, rear cover, 5, conveyor belt, 51, curved baffle.

[0035] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0038] like Figures 1-11As shown, the present invention proposes a water pump impeller welding device, including a front cover plate transport assembly 1, a blade positioning assembly 2, a dividing turntable 3 and a conveyor belt 5, the conveyor belt 5 is respectively arranged on the left side, right side and front side of the dividing turntable 3, the blade positioning assembly 2 is arranged on the conveyor belt 5 on the left side of the dividing turntable 3, and the front cover plate transport assembly 1 is arranged between the dividing turntable 3 and the conveyor belt 5 on the left side; the front cover plate transport assembly 1 includes a telescopic column 11, a flip ring 12 and a rotating disk 13, a support plate 111 is provided on the top of the telescopic column 11, the flip ring 12 rotates on the support plate 111, and the rotating disk 13 rotates in the support plate 111.

[0039] A shaft sleeve 1111 is symmetrically provided inside the support plate 111, a block slide groove 1112 is provided in the center of the support plate 111, a positioning slide groove 1113 is provided on the side wall of the block slide groove 1112, a flip ring 12 is provided with a notch 121, a ring groove 122 is provided in the center of the inner wall of the flip ring 12, rotating columns 123 are symmetrically provided on both sides of the flip ring 12, a flip ring transmission wheel 124 is provided on the rotating column 123, the rotating disk 13 is provided with a gear ring 131 and a suction cup frame 132, a telescopic suction cup 133 is provided on the suction cup frame 132, and the gear ring 131 rotates in the ring groove 122.

[0040] The front cover plate transport assembly 1 also includes a positioning block 14, a turntable motor 15 and a flipping drive assembly 16. The positioning block 14 slides in the block slide groove 1112. A motor groove 141 is provided in the center of the positioning block 14. The turntable motor 15 is provided in the motor groove 141. The flipping drive assembly 16 is provided in the support plate 111.

[0041] A block return spring 142 is provided on the rear side of the positioning block 14, and the end of the block return spring 142 is provided on the inner wall of the block slide groove 1112. A block slide rail 143 is provided on the side wall of the positioning block 14, and the block slide rail 143 slides in the positioning slide groove 1113. A motor gear 151 is provided on the turntable motor 15, and the motor gear 151 is located below the positioning block 14. The motor gear 151 is meshed with the gear ring 131.

[0042] The flip drive assembly 16 includes a transmission shaft 161 and a flip motor 162. The transmission shaft 161 passes through the block slide groove 1112 and rotates in the shaft sleeve 1111. An inner transmission wheel 1611 is symmetrically provided on the inner side of the transmission shaft 161, and an outer transmission wheel 1612 is symmetrically provided at both ends of the transmission shaft 161. The outer transmission wheel 1612 is connected to the flip ring transmission wheel 124 through a transmission chain. A motor transmission wheel 1621 is provided on the flip motor 162, and the motor transmission wheel 1621 is connected to the inner transmission wheel 1611 through a transmission chain.

[0043] The blade positioning assembly 2 includes a blade box 21 and a blade push plate 22. The blade push plate 22 is arranged in the blade box 21. The rear wall of the blade push plate 22 is provided with a push plate spring 221. The end of the push plate spring 221 is provided on the left inner wall of the blade box 21. A support frame 211 is provided at the bottom of the blade box 21. The support frame 211 is fixed on the conveyor belt 5 below it. A positioning discharge port 212 is provided on the right side of the bottom plate of the blade box 21. A cylinder frame 213 is provided on the arc-shaped right wall of the blade box 21. A push rod slide groove 2131 is provided on the cylinder frame 213. A baffle rotating seat 214 is provided at the bottom of the blade box 21.

[0044] The blade positioning assembly 2 also includes a feed port baffle 23, a feed port push rod 24 and a push rod cylinder 25. The feed port baffle 23 rotates on the baffle rotating seat 214, the feed port push rod 24 slides in the push rod slot 2131, the push rod cylinder 25 is arranged on the cylinder frame 213, and the air rod of the push rod cylinder 25 is connected to the feed port push rod 24.

[0045] The discharge port baffle 23 is provided with a long rod 231, an oblique rod 232 and a short rod 233. The long rod 231 is located below the positioning discharge port 212. The connection between the long rod 231 and the oblique rod 232 rotates on the baffle rotating seat 214. The short rod 233 is provided with a baffle return spring 234. The top of the baffle return spring 234 is located at the bottom of the blade box 21. The discharge push rod 24 is provided with a positioning slide rod 241 and a push rod 242. The positioning slide rod 241 slides in the push rod slide groove 2131, and the push rod 242 is located above the positioning discharge port 212.

[0046] A circular array is provided on the indexing turntable 3 with a rear cover positioning groove 31, and a rear cover positioning column 32 is provided in the rear cover positioning groove 31. The water pump impeller 4 includes a front cover 41, curved blades 42 and a rear cover 43. The curved blades 42 are distributed in a circular array between the front cover 41 and the rear cover 43. An arcuate baffle 51 is provided at one end of the conveyor belt 5. The arcuate baffle 51 of the conveyor belt 5 at the bottom of the blade positioning assembly 2 is coaxial with the flip ring 12. The conveyor belt 5 on the left side of the indexing turntable 3 is used to transport the front cover 41, the blade positioning assembly 2 is used to store the curved blades 42, the conveyor belt 5 on the right side of the indexing turntable 3 is used to transport the rear cover 43, and the conveyor belt 5 on the front side of the indexing turntable 3 is used to transport the welded water pump impeller 4.

[0047] During specific use, the conveyor belt 5 at the bottom of the blade positioning assembly 2 transports the front cover plate 41 to the arc-shaped baffle 51, and the transmission shaft 161 is driven to rotate by the flip motor 162. The outer transmission wheels 1612 at both ends of the transmission shaft 161 drive the flip ring transmission wheel 124 to rotate, that is, the flip ring 12 rotates. After the flip ring 12 rotates 180° clockwise, the telescopic suction cup 133 faces downward. When the flip ring 12 rotates to the positioning block 14, the side wall of the flip ring 12 will squeeze the bevel edge of the positioning block 14, so that the positioning block 14 squeezes the block return spring 142 and slides into the block slide groove 1112. The positioning block 14 drives the motor gear 151 below to move into the block slide groove 1112 to ensure that the motor gear 151 will not block the rotation path of the flip ring 12.

[0048] Further, the telescopic column 11 drives the support plate 111 to descend, and at the same time the telescopic suction cup 133 on the suction cup frame 132 extends out and absorbs the front cover 41, and then the telescopic suction cup 133 retracts into the suction cup frame 132, so that the front cover 41 is attached to the surface of the rotating disk 13, and then the flip motor 162 drives the motor drive wheel 1621 to reverse, driving the flip ring 12 to reset, and the rotating disk 13 drives the front cover 41 thereon to rotate together, so that the front cover 41 faces the blade box 21, and the flip motor 162 stops working. At this time, the positioning block 14 is no longer blocked by the side wall of the flip ring 12, and the block reset spring 142 drives the positioning block 14 to reset, so that the positioning block 14 slides into the notch 121 of the flip ring 12, and the motor gear 151 at the bottom of the positioning block 14 is meshed and connected with the gear ring 131.

[0049] When the front cover 41 is positioned toward the blade box 21, the telescopic column 11 drives the support plate 111 to rise, so that the distance between the front cover 41 and the blade box 21 reaches the welding height, the push rod cylinder 25 is started, the push rod cylinder 25 drives the blanking push rod 24 to move downward, the push rod 242 moves downward, and pushes the arc-shaped blade 42 on the lower side of the push rod 242 to move downward, and the arc-shaped blade 42 slides out from the positioning and blanking port 212 of the blade box 21. In the process of the arc-shaped blade 42 moving downward, the arc The curved blade 42 will push the long rod 231 below the positioning discharge port 212, causing the discharge port baffle 23 to rotate around the baffle rotating seat 214, and the short rod 233 of the discharge port baffle 23 will squeeze the baffle return spring 234, and the curved blade 42 will move precisely to fit with the front cover 41. At this time, the upper end of the curved blade 42 is still constrained by the positioning discharge port 212, forming a two-way constrained anti-deformation structure, and then the fitting part of the curved blade 42 and the front cover 41 is welded.

[0050] After the arc blade 42 is welded, the telescopic column 11 moves downward, driving the arc blade 42 downward, so that the arc blade 42 is separated from the positioning discharge port 212, and the discharge port stopper 23 is reset under the elastic force of the stopper reset spring 234, so that the long rod 231 is re-attached to the positioning discharge port 212, preventing the arc blade 42 from falling from the positioning discharge port 212, and the push rod cylinder 25 is reset, driving the discharge push rod 24 to move upward, and after the push rod 242 moves to a height higher than the arc blade 42 in the blade box 21, under the elastic force of the push plate spring 221 The blade pushing plate 22 pushes the arc-shaped blade 42 to move, so that a new arc-shaped blade 42 moves to the positioning discharge port 212. At the same time, the turntable motor 15 is started, driving the motor gear 151 to rotate a certain angle and then stop working. The motor gear 151 drives the gear ring 131 to rotate, and the rotating disk 13 drives the front cover plate 41 to rotate, so that the arc-shaped blade 42 on the front cover plate 41 rotates with the front cover plate 41, and the position of the next arc-shaped blade 42 is vacated on the front cover plate 41 below the positioning discharge port 212. The above process is repeated to continue welding the remaining arc-shaped blades 42.

[0051] After the arc blades 42 on the front cover plate 41 are welded, the telescopic column 11 rotates, and the support plate 111 drives the welded front cover plate 41 to rotate to the top of one of the rear cover plate positioning grooves 31 of the indexing turntable 3. At this time, the rear cover plate positioning groove 31 is equipped with the rear cover plate 43, and the flip motor 162 drives the flip ring 12 to rotate, so that the arc blades 42 on the front cover plate 41 face downward. The height of the arc blades 42 is relatively low, and the arc blades 42 will not be blocked by the support plate 111 during their rotation. After the arc blades 42 face downward, the telescopic column 11 retracts downward, driving the support plate 11 1 moves downward, that is, the front cover plate 41 welded with the arc-shaped blades 42 moves downward, and at the same time, the telescopic suction cup 133 gradually extends from the suction cup frame 132 until the arc-shaped blades 42 are attached to the surface of the rear cover plate 43, and then the fitting part of the rear cover plate 43 and the arc-shaped blades 42 is welded, and under the drive of the turntable motor 15, the welding of all the arc-shaped blades 42 is completed. After the welding is completed, the indexing turntable 3 rotates 60° according to the preset angle, and the worker removes the water pump impeller 4 and transfers it to the finished product conveyor belt 5, and re-installs the rear cover plate 43 from another conveyor belt 5 into the empty rear cover plate positioning groove 31.

[0052] The above is the overall workflow of the present invention, and you can just repeat these steps.

[0053] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0054] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

[0055] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A water pump impeller welding device, characterized by: It comprises a front cover plate transport assembly (1), a blade positioning assembly (2), a dividing turntable (3) and a conveyor belt (5), wherein the conveyor belt (5) is respectively arranged on the left side, the right side and the front side of the dividing turntable (3), the blade positioning assembly (2) is arranged on the conveyor belt (5) on the left side of the dividing turntable (3), and the front cover plate transport assembly (1) is arranged between the dividing turntable (3) and the conveyor belt (5) on the left side; The front cover plate transport assembly (1) comprises a telescopic column (11), a flip ring (12) and a rotating disk (13); a support plate (111) is provided on the top of the telescopic column (11); the flip ring (12) rotates on the support plate (111); and the rotating disk (13) rotates inside the support plate (111); A shaft sleeve (1111) is symmetrically provided inside (111), a stopper slot (1112) is provided at the center of the support plate (111), a positioning slot (1113) is provided on the side wall of the stopper slot (1112), a notch (121) is provided on the flip ring (12), a ring slot (122) is provided at the center of the inner wall of the flip ring (12), rotating columns (123) are symmetrically provided on both sides of the flip ring (12), a flip ring transmission wheel (124) is provided on the rotating column (123), the rotating disk (13) is provided with a gear ring (131) and a suction cup frame (132), a telescopic suction cup (133) is provided on the suction cup frame (132), and the gear ring (131) rotates in the ring slot (122); The flip drive assembly (16) includes a transmission shaft (161) and a flip motor (162), wherein the transmission shaft (161) passes through the block slide groove (1112) and rotates in the shaft sleeve (1111), an inner transmission wheel (1611) is symmetrically provided on the inner side of the transmission shaft (161), and outer transmission wheels (1612) are symmetrically provided at both ends of the transmission shaft (161), and the outer transmission wheel (1612) is connected to the flip ring transmission wheel (124) through a transmission chain, and a motor transmission wheel (1621) is provided on the flip motor (162), and the motor transmission wheel (1621) is connected to the inner transmission wheel (1611) through a transmission chain; The blade positioning assembly (2) includes a blade box (21) and a blade push plate (22), wherein the blade push plate (22) is arranged in the blade box (21), a push plate spring (221) is provided on the rear wall of the blade push plate (22), and the end of the push plate spring (221) is provided on the left inner wall of the blade box (21), a support frame (211) is provided at the bottom of the blade box (21), and the support frame (211) is fixed on the conveyor belt (5) below it, a positioning discharge port (212) is provided on the right side of the bottom plate of the blade box (21), a cylinder frame (213) is provided on the arc-shaped right wall of the blade box (21), and a push rod slide groove (2131) is provided on the cylinder frame (213), and a blocking rod rotating seat (214) is provided at the bottom of the blade box (21).

2. A water pump impeller welding device according to claim 1, characterized in that: The front cover plate transport assembly (1) further comprises a positioning block (14), a turntable motor (15) and a flip drive assembly (16), wherein the positioning block (14) slides in a block slide groove (1112), a motor groove (141) is provided at the center of the positioning block (14), the turntable motor (15) is arranged in the motor groove (141), and the flip drive assembly (16) is arranged in the support plate (111).

3. A water pump impeller welding device according to claim 2, characterized in that: A block return spring (142) is provided on the rear side of the positioning block (14), and the end of the block return spring (142) is provided on the inner wall of the block slide groove (1112). A block slide rail (143) is provided on the side wall of the positioning block (14), and the block slide rail (143) slides in the positioning slide groove (1113). A motor gear (151) is provided on the turntable motor (15), and the motor gear (151) is located below the positioning block (14). The motor gear (151) is meshed with the gear ring (131).

4. A water pump impeller welding device according to claim 3, characterized in that: The blade positioning assembly (2) further includes a discharge port stopper (23), a discharge push rod (24) and a push rod cylinder (25), wherein the discharge port stopper (23) rotates on a stopper rotating seat (214), the discharge push rod (24) slides in a push rod slide groove (2131), and the push rod cylinder (25) is arranged on a cylinder frame (213), and a gas rod of the push rod cylinder (25) is connected to the discharge push rod (24).

5. A water pump impeller welding device according to claim 4, characterized in that: The discharge port baffle (23) is provided with a long rod (231), an oblique rod (232) and a short rod (233), the long rod (231) is located below the positioning discharge port (212), the connection between the long rod (231) and the oblique rod (232) is rotated on the baffle rotating seat (214), the short rod (233) is provided with a baffle return spring (234), the top of the baffle return spring (234) is located at the bottom of the blade box (21), the discharge push rod (24) is provided with a positioning slide rod (241) and a push rod (242), the positioning slide rod (241) slides in the push rod slide groove (2131), and the push rod (242) is located above the positioning discharge port (212).

6. A water pump impeller welding device according to claim 5, characterized in that: A circular array of rear cover plate positioning grooves (31) are provided on the indexing turntable (3), and rear cover plate positioning posts (32) are provided in the rear cover plate positioning grooves (31).

7. A water pump impeller welding device according to claim 6, characterized in that: An arc-shaped baffle (51) is provided at one end of the conveyor belt (5), and the arc-shaped baffle (51) of the conveyor belt (5) at the bottom of the blade positioning assembly (2) is coaxial with the turning ring (12).

Images