An automatic welding system and method for producing a combined pump cover

Abstract

The application belongs to the technical field of centrifugal pump production, and particularly relates to an automatic welding system and method for producing a combined pump cover, which comprises a vertical base plate, a suction type load carrying assembly, a first welding assembly, a pre-assembly loading and replenishing assembly, a punching and welding seam polishing assembly, and a second welding assembly, and can realize automatic loading, positioning, welding, punching and polishing of a workpiece. Based on the system, welding, punching, pre-assembly installation, multi-position welding and welding seam polishing of an inner cylinder and an outer cylinder are sequentially completed. The application improves the overall structural strength of the combined pump cover, solves the defects of a traditional pump cover, realizes self-cleaning of an inlet channel through a self-cleaning spiral blade built in a pre-assembly, and realizes automatic production, thereby meeting the requirement of rapid welding and assembly of the combined pump cover and prolonging the service life of the pump cover.

Description

Technical Field

[0001] This invention belongs to the field of centrifugal pump manufacturing technology, specifically relating to an automated welding system and method for producing combined pump covers. Background Technology

[0002] Multistage centrifugal pumps are characterized by their compact overall structure, small size, light weight, low noise, significant energy-saving effect, and convenient maintenance. They adopt standard motors and quick-install mechanical seals, making replacement very convenient. All flow parts of the pump are made of stainless steel, making them suitable for mildly corrosive media. When the motor drives the impeller on the shaft to rotate at high speed, the liquid filling the impeller is thrown from the center of the impeller to the periphery of the impeller along the flow channels between the blades under the action of centrifugal force. Due to the action of the blades, the pressure and velocity of the liquid increase simultaneously. After passing through the flow channels of the guide casing, it is guided to the next stage impeller, and flows through all the impellers and guide casings in succession, further increasing the pressure energy of the liquid.

[0003] Traditional multistage centrifugal pumps have thin pump covers that are prone to deformation or cracking, which can lead to leaks or vibrations, affecting the pump's sealing performance and operational stability. Additionally, the inner wall of the inlet channel of traditional multistage centrifugal pump covers is prone to scaling and blockage over time.

[0004] To address this issue, the inventors designed a combined pump cover suitable for multi-stage centrifugal pumps, which improves the overall structural strength of the pump cover and features a self-cleaning function for the inlet channel. Existing welding systems for pump cover production cannot meet the requirements for rapid welding and assembly of combined pump covers. Therefore, it is necessary to optimize and improve existing welding systems for pump cover production. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned problems in the prior art and to provide an automated welding system and method for the production of combined pump covers.

[0006] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution: This invention provides an automated welding system for the production of combined pump covers, comprising: A vertical base plate, wherein a through hole is provided on the vertical base plate, and the outer diameter of the through hole matches the inner diameter of the outer cylinder; An adsorption-type material carrier assembly is installed on the right side of the through hole of the vertical substrate and is used to adsorb an outer cylinder pre-filled with an inner cylinder. The first welding assembly is installed on the left side below the through hole of the vertical base plate and is used for welding and fixing the inner cylinder, outer cylinder and cover plate. A pre-assembly component feeding assembly is used to snap-fit ​​pre-assemblies one by one onto the inner cylinder and the outer cylinder; A pre-assembled component feeding assembly is distributed on the side of the pre-assembled component feeding assembly away from the vertical base plate. It is used to feed pre-assembled components to the pre-assembled component feeding assembly. The pre-assembled component is composed of a cover plate, an insert, and a cleaning component. The cleaning component is snapped together between the cover plate and the insert. A punching and weld grinding assembly is installed on the right side below the through hole of a vertical base plate. It is used to process perforated structures on the outer and inner cylinders to facilitate the snapping of pre-assembled parts, and to grind the weld seam between the insert and the outer cylinder. The punching and weld grinding assembly includes a base, a second steering motor, a second rotating plate, a synchronous rotation module, a drilling rod, a sleeve, and a grinding ring. The base is mounted on the second rotating plate via the second steering motor, and two synchronous rotation modules are symmetrically mounted on the upper side of the second rotating plate. The synchronous rotation module includes a third lifting push rod, a support frame, a plate base, a movable block, a synchronous gear, a drive motor, and steering gears. The wheel assembly and drive shaft are included. The cylinder of the third lifting push rod is fixed to the second rotating plate. The movable end of the third lifting push rod is mounted on a plate seat via a support frame. Multiple movable blocks are arranged side by side in the plate seat to restrict rotation. Synchronous gears are fixed to the outer side of each movable block. Adjacent synchronous gears mesh with each other. A drive shaft extending into the support frame is fixed to the lower side of one of the movable blocks. A drive motor is mounted on the outer side of the support frame. The output shaft of the drive motor is connected to the drive shaft via a steering gear set. A drilling rod is fixed to the outer side of the movable block of one of the synchronous rotating modules. A grinding ring is supported on the outer side of the movable block of the other synchronous rotating module via a sleeve. The second welding assembly is installed on the right side above the through hole of the vertical base plate and is used for welding and fixing the outer cylinder and the insertion tube.

[0007] Furthermore, in the aforementioned automated welding system for producing combined pump covers, the outer cylinder, inner cylinder, and pre-assembled components together constitute the combined pump cover. The outer cylinder includes a flange and an outer cylinder tube that are integrated together. The flange has multiple flange holes along its circumference, and the outer cylinder tube has several rows of external perforations formed by punching and welding grinding components along its circumference. The inner cylinder includes an inner tube, which has multiple inwardly recessed portions along its circumference. The bottom plate of each recessed portion is formed by a punching and welding grinding assembly and has a row of internal perforations.

[0008] Furthermore, in the above-mentioned automated welding system for producing combined pump covers, the cover plate includes a grooved plate, and a row of positioning protrusions is provided on the inner side of the web portion of the grooved plate. The insertion device includes a strip plate, the upper side of which is provided with a protruding ring portion, and the upper side of the protruding ring portion is provided with an insertion portion; The cleaning component includes a limiting block, a support rod, and a self-cleaning screw blade. The support rod is installed at the center of the limiting block, and the self-cleaning screw blade is installed on the outer side of the support rod. The outer edge of the self-cleaning screw blade abuts against the inner wall of the insertion tube. The limiting block has multiple water inlet holes around the support rod.

[0009] Furthermore, in the aforementioned automated welding system for producing combined pump covers, the convex ring is sleeved on the outside of the corresponding positioning convex ring, and the two together form a limiting area with a rotation limiting block; the strip plate is pre-attached to the inner side of the web of the channel plate with adhesive.

[0010] Furthermore, in the aforementioned automated welding system for producing combined pump covers, the adsorption-type material loading assembly includes a rotary drive, an annular suction cup, and a flange positioning block. The fixed ring of the rotary drive is fixed to the outside of the through hole of the vertical base plate. An annular suction cup is installed on the outside of the moving ring of the rotary drive. A flange positioning block corresponding to the position of the flange hole in the outer cylinder is installed on the outside of the annular suction cup. An adsorption hole offset from the position of the flange positioning block is provided on the outside of the annular suction cup.

[0011] Furthermore, in the aforementioned automated welding system for producing combined pump covers, the first welding component includes a first linear guide pair, a first lifting push rod, a mounting frame, a balance block, a support plate, a first welding head, a tilting motor, and a drive gear. The outer side of the slider of the first linear guide pair is supported by the mounting frame via the first lifting push rod. The mounting frame movably supports the balance block. The center of one side of the balance block is supported by the support plate, and the tilting motor is mounted on the mounting frame. The output end of the tilting motor is equipped with a drive gear. The outer periphery of the balance block is evenly distributed with tooth grooves that mesh with the drive gear.

[0012] Furthermore, in the aforementioned automated welding system for producing combined pump covers, the pre-assembly loading assembly includes a second linear guide pair, a second lifting push rod, a first mounting plate, a first connecting shaft, a first rotating plate, a strip suction cup, a pre-assembly positioning block, a first steering motor, and a first belt drive component. The outer side of the slider of the second linear guide pair is supported by the second lifting push rod, and the upper end of the first connecting shaft is rotated and restricted to the lower side of the first mounting plate. The lower end of the first connecting shaft is symmetrically mounted with a strip suction cup via the first rotating plate. The upper side of the strip suction cup is equipped with a pre-assembly positioning block corresponding to the positioning protrusion ring in the pre-assembly. The upper side of the strip suction cup is provided with an adsorption hole offset from the position of the pre-assembly positioning block. The first steering motor is mounted on the first mounting plate, and the output shaft of the first steering motor is connected to the first connecting shaft via the first belt drive component.

[0013] Furthermore, in the aforementioned automated welding system for producing combined pump covers, the pre-assembled component feeding assembly includes a screw support, a screw motor, a screw, a movable carrier block, a material rack, a circulating conveyor belt, and a trough-shaped material support block. The screw motor is mounted on the outside of the screw support, and the screw is mounted on the output end of the screw motor. The movable carrier block is sleeved on the outside of the screw, and the inner end of the movable carrier block slides against the screw support. The material rack is mounted on the outer end of the movable carrier block. Two vertically arranged circulating conveyor belts are symmetrically installed inside the material rack. Multiple trough-shaped material support blocks are equidistantly arranged on the outer side of the circulating conveyor belt. The trough-shaped material support blocks have slots for easy insertion of pre-assembled components.

[0014] Furthermore, in the aforementioned automated welding system for producing combined pump covers, the second welding assembly includes a third linear guide pair, a fourth lifting push rod, a second mounting plate, a second connecting shaft, a support, a second welding head, a third steering motor, and a second belt drive component. The slider of the third linear guide pair is supported by the second mounting plate via the fourth lifting push rod. The upper end of the second connecting shaft is rotated and restricted to the lower side of the second mounting plate. The lower end of the second connecting shaft is supported by the support and a second welding head is mounted on the second mounting plate. The third steering motor is mounted on the second mounting plate, and the output shaft of the third steering motor is connected to the second connecting shaft via the second belt drive component.

[0015] The present invention also provides an automated welding method for the production of combined pump covers, which is based on the above-mentioned automated welding system for the production of combined pump covers and includes the following steps: S1. Using a feeding robot, the outer cylinder pre-filled with the inner cylinder is installed on the adsorption-type loading assembly, and the outer cylinder is adsorbed and locked. The inner cylinder and the outer cylinder are welded and fixed using the first welding assembly. The outer and inner perforations are processed on the outer and inner cylinders respectively to facilitate the snapping of the pre-assembled parts using the punching and weld grinding assembly. S2. Use the pre-assembly feeding assembly to snap the pre-assembly components one by one onto the inner cylinder and outer cylinder, and use the pre-assembly replenishment assembly to feed the pre-assembly components to the pre-assembly feeding assembly. S3. After the pre-assembled parts are snapped together, the second welding assembly is used to weld and fix the outer cylinder and the insert fitting. The punching and weld grinding assembly is used to grind the weld between the insert fitting and the outer cylinder. S4. Use the first welding assembly to weld and fix the inner cylinder and the cover plate.

[0016] The beneficial effects of this invention are: 1. This invention provides an automated welding system for the production of combined pump covers, which mainly consists of a vertical base plate, an adsorption-type material carrier assembly, a first welding assembly, a pre-assembled part feeding assembly, a pre-assembled part replenishing assembly, a punching and weld grinding assembly, and a second welding assembly. The adsorption-type material carrier assembly adsorbs and locks an outer cylinder pre-filled with an inner cylinder. The first welding assembly welds and fixes the inner and outer cylinders together. The punching and weld grinding assembly processes external and internal through holes on the outer and inner cylinders respectively to facilitate the snapping of pre-assembled parts. The pre-assembled part... The component loading assembly snaps pre-assembled parts one by one onto the inner and outer cylinder components. The pre-assembled part replenishment assembly feeds pre-assembled parts into the pre-assembled part loading assembly. The second welding assembly welds and fixes the outer cylinder component and the insert pipe component. The punching and weld grinding assembly grinds the weld seam between the insert pipe component and the outer cylinder component. The first welding assembly welds and fixes the inner cylinder component and the cover plate component. In this way, the entire process from workpiece loading, positioning, welding, punching to grinding is automated, meeting the requirements for rapid welding and assembly of combined pump covers.

[0017] 2. The combined pump cover prepared by this invention utilizes the inner cylinder to provide radial compressive strength to the outer cylinder and the pre-installed component to enhance the axial compressive strength of the outer cylinder, thereby improving the overall structural strength. This effectively improves the problems of traditional pump covers being too thin and prone to deformation and cracking, and avoids pump body medium leakage, operation vibration and other faults. At the same time, the pre-installed component has a built-in self-cleaning screw structure, which can realize the self-cleaning of the pump cover water inlet channel, effectively preventing scale and blockage on the inner wall of the channel and extending the service life of the pump cover.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the combined pump cover in this invention; Figure 3 This is an exploded view of the combined pump cover in this invention; Figure 4 This is a schematic diagram of the opening process of the outer cylinder in this invention; Figure 5 This is a schematic diagram of the opening process of the inner cylinder in this invention; Figure 6This is a schematic diagram of the structure of the pre-assembled component in this invention; Figure 7 This is an exploded view of the pre-assembled component in this invention; Figure 8 This is a schematic diagram showing the positions of the first and second arc-shaped welding lines in this invention; Figure 9 This is a side view of the adsorption-type material carrier assembly in this invention; Figure 10 This is a schematic diagram of the structure of the adsorption-type material carrier component in this invention; Figure 11 This is a schematic diagram of the structure of the first welding assembly in this invention; Figure 12 This is a schematic diagram of the pre-assembled component feeding assembly in this invention; Figure 13 This is a schematic diagram showing the usage state of the pre-assembled component replenishment assembly in this invention; Figure 14 This is a schematic diagram of the pre-assembled component feeding assembly in this invention; Figure 15 This is a schematic diagram of the punching and weld grinding assembly in this invention; Figure 16 This is a schematic diagram of the structure of the second welding assembly in this invention; Figure 17 This is a connection block diagram of the main components in this invention; In the attached diagram, the components represented by each number are as follows: 1-Vertical substrate, 101-Through hole; 2-Adsorption-type material loading assembly, 201-Rotary drive, 202-Annular suction cup, 203-Flange positioning block; 3-First welding assembly, 301-First linear guide pair, 302-First lifting push rod, 303-Mounting bracket, 304-Balance block, 305-Support plate, 306-First welding head, 307-Tilting motor, 308-Drive gear; 4-Pre-assembled part feeding assembly, 401-Second linear guide pair, 402-Second lifting push rod, 403-First mounting plate, 404-First connecting shaft, 405-First rotating plate, 406-Strip suction cup, 407-Pre-assembled part positioning block, 408-First steering motor, 409-First belt drive component; 5-Pre-assembled component feeding assembly, 501-Screw support, 502-Screw motor, 503-Screw, 504-Modible support block, 505-Material rack, 506-Circulating conveyor belt, 507-Trough-shaped material support block; 6-Punching and weld grinding assembly, 601-Base, 602-Second steering motor, 603-Second rotating plate, 604-Third lifting push rod, 605-Support, 606-Plate base, 607-Moving block, 608-Synchronous gear, 609-Drive motor, 610-Steering gear set, 611-Drive shaft, 612-Drill rod, 613-Sleeve, 614-Grinding ring; 7-Second welding assembly, 701-Third linear guide pair, 702-Fourth lifting push rod, 703-Second mounting plate, 704-Second connecting shaft, 705-Support, 706-Second welding head, 707-Third steering motor, 708-Second belt drive component; 8-Combined pump cover, 81-Outer cylinder, 811-Flange, 812-Outer tube, 813-Flange hole, 814-External perforation, 82-Inner cylinder, 821-Inner tube, 822-Recess, 823-Internal perforation, 83-Cover plate, 831-Slotted plate, 832-Positioning convex ring, 84-Insertion fitting, 841-Strip plate, 842-Convex ring, 843-Insertion fitting, 85-Cleaning component, 851-Limiting block, 852-Support rod, 853-Self-cleaning screw blade, 86-First arc-shaped welding line, 87-Second arc-shaped welding line. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figures 1-3 and Figure 6As shown, this embodiment provides an automated welding system for producing a combined pump cover, including a vertical base plate 1, an adsorption-type material carrier assembly 2, a first welding assembly 3, a pre-assembled part feeding assembly 4, a pre-assembled part replenishing assembly 5, a punching and weld grinding assembly 6, and a second welding assembly 7. A through hole 101 is provided on the vertical base plate 1, the outer diameter of which matches the inner diameter of the outer cylinder 81. The through hole 101 is used to avoid material feeding operations and internal welding operations. The adsorption-type material carrier assembly 2 is installed on the right side of the through hole 101 on the vertical base plate 1, used to adsorb the outer cylinder 81 pre-filled with the inner cylinder 82. The first welding assembly 3 is installed on the left side below the through hole 101 on the vertical base plate 1, used for welding and fixing the inner cylinder 82 to the outer cylinder 81 and the cover plate 83. The pre-assembled part feeding assembly 4 is used for... Pre-assembled parts are snapped onto the inner cylinder 82 and outer cylinder 81 one by one; the pre-assembled part feeding assembly 5 is distributed on the side away from the vertical base plate 1 near the pre-assembled part feeding assembly 4, and is used to feed the pre-assembled parts to the pre-assembled part feeding assembly 4. The pre-assembled parts are composed of a cover plate 83, a tube 84 and a cleaning part 85. Multiple cleaning parts 85 are snapped onto the cover plate 83 and the tube 84; the punching and weld grinding assembly 6 is installed on the right side below the through hole 101 of the vertical base plate 1, and is used to process the through hole structure on the outer cylinder 81 and the inner cylinder 82 to facilitate the snapping onto the pre-assembled parts, and to grind the weld between the tube 84 and the outer cylinder 81; the second welding assembly 7 is installed on the right side above the through hole 101 of the vertical base plate 1, and is used to weld and fix the outer cylinder 81 and the tube 84.

[0023] In this embodiment, the outer cylinder 81, the inner cylinder 82, and the pre-assembled parts together constitute the combined pump cover 8.

[0024] like Figure 4 As shown, the outer cylinder 81 includes a flange 811 and an outer cylinder 812 that are integrated together. One end of the outer cylinder 812 near the flange 811 is open and the other end is closed. The inner side of the end plate at the closed end is provided with a shaft positioning groove that mates with the central shaft of the stirring impeller. The flange 811 is provided with multiple flange holes 813 in the circumferential direction. The outer cylinder 812 is formed by punching and welding grinding assembly 6 in the circumferential direction with several rows of external perforations 814.

[0025] like Figure 5 As shown, the inner cylinder 82 includes an inner cylinder tube 821. The inner cylinder tube 821 has a plurality of inwardly recessed portions 822 along the circumferential direction. The bottom plate of each recessed portion 822 is formed by punching and welding grinding assembly 6 and has a row of internal perforations 823.

[0026] like Figure 7As shown, the cover plate 83 includes a channel plate 831, and a row of positioning protrusions 832 is provided on the inner side of the web portion of the channel plate 831. The insertion tube 84 includes a strip plate 841, and a protrusion 842 is provided on the upper side of the strip plate 841. An insertion tube portion 843 is provided on the upper side of the protrusion 842. The cleaning component 85 includes a limiting block 851, a support rod 852, and a self-cleaning screw 853. The support rod 852 is installed at the center of the limiting block 851, and the self-cleaning screw 853 is installed on the outer side of the support rod 852. The outer edge of the self-cleaning screw 853 abuts against the inner wall of the insertion tube portion 843. The limiting block 851 has multiple water inlet holes around the support rod 852. The convex ring 842 is sleeved on the outside of the corresponding positioning convex ring 832, and the two together form a limiting area with the rotation limiting block 851; the strip plate 841 is pre-attached to the inside of the web of the groove plate 831 by adhesive.

[0027] like Figures 9-10 As shown, the adsorption-type material carrier assembly 2 includes a rotary actuator 201, an annular suction cup 202, and a flange positioning block 203. The fixed ring portion of the rotary actuator 201 is fixed to the outside of the through hole 101 of the vertical base plate 1. The diameter of the through hole 101 is slightly smaller than the inner diameter of the rotary actuator 201. An annular suction cup 202 is installed on the outside of the moving ring portion of the rotary actuator 201. A flange positioning block 203 corresponding to the position of the flange hole 813 in the outer cylinder 81 is installed on the outside of the annular suction cup 202. An adsorption hole offset from the position of the flange positioning block 203 is provided on the outside of the annular suction cup 202.

[0028] The working principle of the adsorption-type material carrier assembly 2 is as follows: The loading robot transfers the outer cylinder 81, which is pre-filled with the inner cylinder 82, to the outside of the annular suction cup 202. The flange positioning block 203 cooperates with the flange hole 813 on the outer cylinder 81 to achieve the initial positioning of the outer cylinder 81, ensuring that the installation position of the outer cylinder 81 meets the welding requirements. After positioning, the annular suction cup 202 generates negative pressure through the adsorption hole, firmly adsorbing the outer cylinder 81 onto the suction cup surface, thereby locking the workpiece and preventing displacement of the workpiece during welding. During welding, the moving ring of the rotary driver 201 can drive the annular suction cup 202 and the adsorbed workpiece to rotate. With the position adjustment of the welding assembly, welding operations at different angles and positions of the workpiece can be achieved without manual flipping of the workpiece, thus improving welding efficiency and welding uniformity.

[0029] like Figure 11As shown, the first welding assembly 3 includes a first linear guide pair 301, a first lifting push rod 302, a mounting frame 303, a balance block 304, a support plate 305, a first welding head 306, a tilting motor 307, and a drive gear 308. The outer side of the slider of the first linear guide pair 301 is supported by the mounting frame 303 via the first lifting push rod 302. The balance block 304 is movably supported in the mounting frame 303. The first welding head 306 is supported at the center of one side of the balance block 304 via the support plate 305. The tilting motor 307 is mounted on the mounting frame 303. The drive gear 308 is mounted on the output end of the tilting motor 307. The outer periphery of the balance block 304 is evenly distributed with tooth grooves that mesh with the drive gear 308.

[0030] The working principle of the first welding assembly 3 is as follows: Welding and fixing of inner cylinder 82 and outer cylinder 81: as follows Figure 8 As shown, except for the recessed portion 822, the outer end of the inner tube 821 forms multiple segments of first arc-shaped welding lines 86 with the inner wall of the outer tube 81, which can form a first fracture ring line. The inner end recessed portion 822 of the inner tube 821 and the end plate of the outer tube 81 form multiple segments of second arc-shaped welding lines 87, which can form a second fracture ring line. The horizontal position of the first welding head 306 is adjusted by the first linear guide pair 301, the vertical height position of the first welding head 306 is adjusted by the first lifting push rod 302, and the welding angle of the first welding head 306 is adjusted by the flipping motor 307, the drive gear 308, and the balance block 304. After the first welding assembly 3 completes the welding operation of a segment of the first arc welding line 86 or the second arc welding line 87, the adsorption-type material carrier assembly 2 drives the outer cylinder 81 and the inner cylinder 82 to rotate at a certain angle, so that the welding operation of the next segment of the first arc welding line 86 or the second arc welding line 87 can be carried out, until the welding operation of the entire first fracture ring line and the second fracture ring line is completed.

[0031] Welding and fixing of inner cylinder 82 and cover plate 83: The two side plates of the groove plate 831 of cover plate 83 and the outer wall of the recess 822 of inner cylinder 82 form a straight welding line; the horizontal position of the first welding head 306 is adjusted by the first linear guide pair 301, the vertical height position of the first welding head 306 is adjusted by the first lifting push rod 302, and the welding angle of the first welding head 306 is adjusted by the flipping motor 307, the drive gear 308, and the balance block 304. After the first welding assembly 3 completes the welding operation of a section of straight welding line, the adsorption-type material carrier assembly 2 drives the outer cylinder 81 and inner cylinder 82 to flip by a certain angle, so that the welding operation of the next section of straight welding line can be carried out, until the welding operation of all straight welding lines is completed.

[0032] like Figure 12As shown, the pre-assembled part loading assembly 4 includes a second linear guide pair 401, a second lifting push rod 402, a first mounting plate 403, a first connecting shaft 404, a first rotating plate 405, a strip suction cup 406, a pre-assembled part positioning block 407, a first steering motor 408, and a first belt drive component 409. The slider of the second linear guide pair 401 is supported by the first mounting plate 403 via the second lifting push rod 402. The upper end of the first connecting shaft 404 has its rotation restricted to the lower side of the first mounting plate 403. The lower end of the first connecting shaft 404 is symmetrically mounted with strip suction cups 406 via the first rotating plate 405. A pre-assembled part positioning block 407 corresponding to the positioning protrusion 832 in the pre-assembled part is mounted on the upper side of the strip suction cup 406. The upper side of the strip suction cup 406 has suction holes offset from the position of the pre-assembled part positioning block 407. A first steering motor 408 is mounted on the first mounting plate 403. The output shaft of the first steering motor 408 is connected to the first connecting shaft 404 via the first belt drive component 409.

[0033] The working principle of the pre-assembled part loading assembly 4 is as follows: The second lifting push rod 402 drives the first mounting plate 403 and the strip suction cup 406 below it to rise. The strip suction cup 406 on the left side picks up the pre-assembled part. Then, the second lifting push rod 402 drives the first mounting plate 403 and the strip suction cup 406 below it to fall. When the first steering motor 408 is working, it drives the first connecting shaft 404 to rotate through the first belt drive component 409. The first connecting shaft 404 drives the first rotating plate 405 and the strip suction cup. Rotation 406 causes the pre-assembled part to move to the right side; the second linear guide pair 401 drives the pre-assembled part to move horizontally into the inner cavity of the inner cylinder 82, and then the second lifting push rod 402 drives the first mounting plate 403 and the strip suction cup 406 below to rise, and the insertion part 843 of the pre-assembled part is inserted into the inner through hole 823 and the outer through hole 814 in sequence, completing the snap-fit ​​installation of the pre-assembled part on the inner cylinder 82 and the outer cylinder 81. Then, the second welding assembly 7 is used to weld and fix the outer cylinder 81 to the insertion part 84. After each pre-assembled part is snap-fitted and loaded, the adsorption-type loading assembly 2 drives the outer cylinder 81 and the inner cylinder 82 to rotate at a certain angle, so that the snap-fit ​​installation of the next pre-assembled part can be carried out, until the snap-fit ​​installation of all pre-assembled parts is completed.

[0034] like Figures 13-14As shown, the pre-assembled component feeding assembly 5 includes a lead screw support 501, a lead screw motor 502, a lead screw 503, a movable carrier block 504, a material rack 505, a circulating conveyor belt 506, and a trough-shaped material support block 507. The lead screw motor 502 is mounted on the outer side of the lead screw support 501, and the lead screw 503 is mounted on the output end of the lead screw motor 502. The movable carrier block 504 is sleeved on the outer side of the lead screw 503. The inner end of the movable carrier block 504 slides against the lead screw support 501, and the material rack 505 is mounted on the outer end of the movable carrier block 504. Two vertically arranged circulating conveyor belts 506 are symmetrically installed inside the material rack 505. Multiple trough-shaped material support blocks 507 are equidistantly arranged on the outer side of the circulating conveyor belt 506. Each trough-shaped material support block 507 has a clamping groove for easy insertion of pre-assembled components. The thickness of the clamping groove is equal to the sum of the thickness of the web of the trough plate 831 and the thickness of the strip plate 841. The trough-shaped material support block 507 is made of wear-resistant silicone material and can adapt to deformation during feeding.

[0035] The working principle of the pre-assembled component feeding assembly 5 is as follows: Pre-assembled components are placed one by one into the slots of the grooved support blocks 507. The grooved support blocks 507 are made of wear-resistant silicone. Two opposing grooved support blocks 507 are used to clamp and support the pre-assembled components, achieving stable placement. When the circulating conveyor belt 506 is working, it drives the two opposing grooved support blocks 507 and the pre-assembled components they clamp to move vertically, transporting the pre-assembled components to the location corresponding to the pre-assembled component feeding assembly 4. The height; when the lead screw motor 502 is working, it drives the lead screw 503 to rotate, and the lead screw 503 drives the movable carrier block 504 to slide along the lead screw support 501, thereby driving the material rack 505 to move vertically, so that the bottom pre-assembled part moves toward the strip suction cup 406 until it is attracted by the strip suction cup 406. Since the attraction force of the strip suction cup 406 is much greater than the frictional resistance, when the strip suction cup 406 descends, the pre-assembled part can be forcibly removed from the clamped groove support block 507.

[0036] like Figure 15As shown, the punching and weld grinding assembly 6 includes a base 601, a second steering motor 602, a second rotating plate 603, a synchronous rotation module, a drilling rod 612, a sleeve 613, and a grinding ring 614. The base 601 is mounted with the second rotating plate 603 via the second steering motor 602. Two synchronous rotation modules are symmetrically mounted on the upper side of the second rotating plate 603. The synchronous rotation module includes a third lifting push rod 604, a support frame 605, a plate base 606, a movable block 607, a synchronous gear 608, a drive motor 609, a steering gear set 610, and a transmission shaft 611. The cylinder of the third lifting push rod 604 is fixed on the second rotating plate 603. The movable end of the third lifting push rod 604 is mounted with the plate base 606 via the support frame 605. Multiple movable blocks 607 are arranged side by side in the plate base 606 to restrict rotation. A synchronous gear 608 is fixed on the outer side of the movable block 607, and two adjacent synchronous gears 608 mesh with each other. One of the movable blocks 607 has a drive shaft 611 that extends into the support frame 605 fixed to its lower side. A drive motor 609 is installed on the outside of the support frame 605. The output shaft of the drive motor 609 is connected to the drive shaft 611 via a steering gear set 610. A drilling rod 612 is fixed to the outside of the movable block 607 of one of the synchronous rotating modules. A grinding ring 614 is supported on the outside of the movable block 607 of the other synchronous rotating module via a sleeve 613. The inner diameter of the sleeve 613 and the grinding ring 614 are matched with the outer diameter of the insertion part 843.

[0037] The working principle of the punching and weld grinding assembly 6 is as follows: Punching function: The second steering motor 602 drives the second rotating plate 603 to rotate, switching the synchronous rotating module with the drilling rod 612 to the working position, aligning it with the punching position of the outer cylinder 81 or the inner cylinder 82; the third lifting push rod 604 drives the support frame 605 and the drilling rod 612 to rise, so that the drilling rod 612 is aligned with the punching position; when the drive motor 609 is working, it drives the transmission shaft 611 to rotate through the steering gear set 610, and the transmission shaft 611 drives the corresponding movable block 607 to rotate. Since the synchronous gears 608 on the outer side of the adjacent movable blocks 607 mesh with each other, all movable blocks 607 rotate synchronously, thereby driving the drilling rod 612 to rotate at high speed; the third lifting push rod 604 continuously pushes the drilling rod 612 to rise, realizing the punching operation of the outer cylinder 81 and the inner cylinder 82, processing the outer through hole 814 and the inner through hole 823 that are easy to snap into the pre-assembled parts; multiple drilling rods 612 work synchronously, and a row of combined through holes can be processed at one time. After each row of combined perforations is completed, the adsorption-type material carrier 2 drives the outer cylinder 81 and inner cylinder 82 to rotate at a certain angle, so that the next row of combined perforations can be processed, until all combined perforations are processed.

[0038] Weld grinding function: After the outer cylinder 81 and the insert 84 are welded, the second steering motor 602 drives the second rotating plate 603 to rotate, switching the synchronous rotating module with the grinding ring 614 to the working position; the third lifting push rod 604 drives the support 605 and the grinding ring 614 to rise, so that the grinding ring 614 is fitted on the outside of the weld seam between the insert 84 and the outer cylinder 81; when the drive motor 609 is working, it drives all the moving blocks 607 to rotate synchronously through the steering gear set 610, the transmission shaft 611, and the synchronous gear 608. The moving blocks 607 drive the grinding ring 614 to rotate at high speed through the sleeve 613; at the same time, the third lifting push rod 604 finely adjusts the height of the grinding ring 614 so that the grinding ring 614 is in full contact with the annular weld seam between the outer cylinder 81 and the insert 84, realizing the grinding treatment of the annular weld seam, removing weld burrs, making the weld seam flat and smooth, improving the welding quality and the appearance precision of the pump cover. After each row of annular weld seams is ground, the adsorption-type material carrier 2 drives the outer cylinder 81 and inner cylinder 82 to rotate at a certain angle, so that the next row of annular weld seams can be ground, until all annular weld seams are ground.

[0039] like Figure 16 As shown, the second welding assembly 7 includes a third linear guide pair 701, a fourth lifting push rod 702, a second mounting plate 703, a second connecting shaft 704, a support 705, a second welding head 706, a third steering motor 707, and a second belt drive component 708. The second mounting plate 703 is supported on the outer side of the slider of the third linear guide pair 701 via the fourth lifting push rod 702. The upper end of the second connecting shaft 704 is rotated and restricted to the lower side of the second mounting plate 703. The lower end of the second connecting shaft 704 is supported on the second welding head 706 via the support 705. The third steering motor 707 is mounted on the second mounting plate 703. The output shaft of the third steering motor 707 is connected to the second connecting shaft 704 via the second belt drive component 708.

[0040] The working principle of the second welding assembly 7 is as follows: the insert part 843 in the insert member 84 protrudes outward relative to the outer cylinder 812 of the outer cylinder member 81, and an annular weld seam is formed between the two. The horizontal position of the second welding head 706 is adjusted by the third linear guide pair 701, and the vertical height position of the second welding head 706 is adjusted by the fourth lifting push rod 702. Due to the inclination of the support 705, the second welding head 706 has a certain tilt angle. When the third steering motor 707 and the second belt drive member 708 drive the second welding head 706 to rotate around the axis of the second connecting shaft 704, it can just be used to weld the annular weld seam. After the second welding assembly 7 completes the welding of a row of annular weld seams, the adsorption-type material loading assembly 2 drives the outer cylinder member 81 and the inner cylinder member 82 to rotate at a certain angle, so that the welding of the next row of annular weld seams can be carried out, until the welding of all annular weld seams is completed.

[0041] like Figure 17 As shown, it also includes a controller, which is electrically connected and controlled to the vertical base plate 1, the adsorption-type material carrier 2, the first welding assembly 3, the pre-assembled part feeding assembly 4, the pre-assembled part replenishing assembly 5, the punching and weld grinding assembly 6, and the second welding assembly 7.

[0042] This embodiment also provides an automated welding method for the production of combined pump covers, including the following steps: S1. Using a feeding robot, the outer cylinder 81 pre-filled with the inner cylinder 82 is installed on the adsorption-type material carrier 2, and the outer cylinder 81 is adsorbed and locked. The inner cylinder 82 and the outer cylinder 81 are welded and fixed using the first welding assembly 3. The outer through hole 814 and the inner through hole 823 are respectively processed on the outer cylinder 81 and the inner cylinder 82 to facilitate the snapping of the pre-assembled parts using the punching and weld grinding assembly 6. S2. Use the pre-installed component feeding assembly 4 to snap the pre-installed components one by one onto the inner cylinder 82 and the outer cylinder 81, and use the pre-installed component replenishing assembly 5 to feed the pre-installed components to the pre-installed component feeding assembly 4. S3. After the pre-assembled parts are connected, the second welding assembly 7 is used to weld and fix the outer cylinder 81 and the insert 84, and the punching and weld grinding assembly 6 is used to grind the weld between the insert 84 and the outer cylinder 81. S4. Use the first welding assembly 3 to weld and fix the inner cylinder 82 and the cover plate 83.

[0043] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An automated welding system for producing combined pump covers, characterized in that, include: A vertical base plate, wherein a through hole is provided on the vertical base plate, and the outer diameter of the through hole matches the inner diameter of the outer cylinder; An adsorption-type material carrier assembly is installed on the right side of the through hole of the vertical substrate and is used to adsorb an outer cylinder pre-filled with an inner cylinder. The first welding assembly is installed on the left side below the through hole of the vertical base plate and is used for welding and fixing the inner cylinder, outer cylinder and cover plate. A pre-assembly component loading assembly is used to snap pre-assemblies one by one onto the inner and outer cylinder components; the outer cylinder component, inner cylinder component, and pre-assemblies together constitute a combined pump cover; the outer cylinder component includes an integral flange and an outer cylinder tube, the flange has multiple flange holes along the circumference, and the outer cylinder tube has several rows of external through holes formed by a punching and welding seam grinding assembly along the circumference; the inner cylinder component includes an inner cylinder tube, the inner cylinder tube has multiple inwardly recessed portions along the circumference, and the bottom plate of each recessed portion has a row of internal through holes formed by a punching and welding seam grinding assembly; A pre-assembled component feeding assembly is distributed on the side of the pre-assembled component feeding assembly away from the vertical base plate. It is used to feed pre-assembled components to the pre-assembled component feeding assembly. The pre-assembled component is composed of a cover plate, an insert, and a cleaning component. The cleaning component is snapped together between the cover plate and the insert. A punching and weld grinding assembly is installed on the right side below the through hole of a vertical base plate. It is used to process perforated structures on the outer and inner cylinders to facilitate the snapping of pre-assembled parts, and to grind the weld seam between the insert and the outer cylinder. The punching and weld grinding assembly includes a base, a second steering motor, a second rotating plate, a synchronous rotation module, a drilling rod, a sleeve, and a grinding ring. The base is mounted on the second rotating plate via the second steering motor, and two synchronous rotation modules are symmetrically mounted on the upper side of the second rotating plate. The synchronous rotation module includes a third lifting push rod, a support frame, a plate base, a movable block, a synchronous gear, a drive motor, and steering gears. The wheel assembly and drive shaft are included. The cylinder of the third lifting push rod is fixed to the second rotating plate. The movable end of the third lifting push rod is mounted on a plate seat via a support frame. Multiple movable blocks are arranged side by side in the plate seat to restrict rotation. Synchronous gears are fixed to the outer side of each movable block. Adjacent synchronous gears mesh with each other. A drive shaft extending into the support frame is fixed to the lower side of one of the movable blocks. A drive motor is mounted on the outer side of the support frame. The output shaft of the drive motor is connected to the drive shaft via a steering gear set. A drilling rod is fixed to the outer side of the movable block of one of the synchronous rotating modules. A grinding ring is supported on the outer side of the movable block of the other synchronous rotating module via a sleeve. The second welding assembly is installed on the right side above the through hole of the vertical base plate and is used for welding and fixing the outer cylinder and the insertion tube.

2. The automated welding system for producing a combined pump cover according to claim 1, characterized in that, The cover plate includes a grooved plate, and a row of positioning protrusions is provided on the inner side of the web portion of the grooved plate; The insertion device includes a strip plate, the upper side of which is provided with a protruding ring portion, and the upper side of the protruding ring portion is provided with an insertion portion; The cleaning component includes a limiting block, a support rod, and a self-cleaning screw blade. The support rod is installed at the center of the limiting block, and the self-cleaning screw blade is installed on the outer side of the support rod. The outer edge of the self-cleaning screw blade abuts against the inner wall of the insertion tube. The limiting block has multiple water inlet holes around the support rod.

3. The automated welding system for producing a combined pump cover according to claim 2, characterized in that, The convex ring is sleeved on the outside of the corresponding positioning convex ring, and the two together form a limiting area with a rotation limiting block; the strip plate is pre-attached to the inside of the web of the channel plate with adhesive.

4. The automated welding system for producing a combined pump cover according to claim 3, characterized in that, The adsorption-type material loading assembly includes a rotary driver, an annular suction cup, and a flange positioning block. The fixed ring of the rotary driver is fixed to the outside of the through hole of the vertical base plate. An annular suction cup is installed on the outside of the moving ring of the rotary driver. A flange positioning block corresponding to the position of the flange hole in the outer cylinder is installed on the outside of the annular suction cup. An adsorption hole offset from the position of the flange positioning block is provided on the outside of the annular suction cup.

5. The automated welding system for producing a combined pump cover according to claim 4, characterized in that, The first welding assembly includes a first linear guide pair, a first lifting push rod, a mounting frame, a balance block, a support plate, a first welding head, a tilting motor, and a drive gear. The outer side of the slider of the first linear guide pair is supported by the mounting frame via the first lifting push rod. The balance block is movably supported in the mounting frame. The first welding head is supported at the center of one side of the balance block via the support plate. The tilting motor is mounted on the mounting frame. The output end of the tilting motor is mounted on the drive gear. The outer periphery of the balance block is evenly distributed with tooth grooves that mesh with the drive gear.

6. The automated welding system for producing a combined pump cover according to claim 5, characterized in that, The pre-assembled component loading assembly includes a second linear guide pair, a second lifting push rod, a first mounting plate, a first connecting shaft, a first rotating plate, a strip suction cup, a pre-assembled component positioning block, a first steering motor, and a first belt drive component. The slider of the second linear guide pair is supported by the first mounting plate via the second lifting push rod. The upper end of the first connecting shaft is restricted to rotate on the lower side of the first mounting plate. The lower end of the first connecting shaft is symmetrically mounted with a strip suction cup via the first rotating plate. The upper side of the strip suction cup is equipped with a pre-assembled component positioning block corresponding to the positioning protrusion ring in the pre-assembled component. The upper side of the strip suction cup is provided with an adsorption hole offset from the position of the pre-assembled component positioning block. The first steering motor is mounted on the first mounting plate. The output shaft of the first steering motor is connected to the first connecting shaft via the first belt drive component.

7. The automated welding system for producing a combined pump cover according to claim 6, characterized in that, The pre-assembled component feeding assembly includes a lead screw support, a lead screw motor, a lead screw, a movable carrier block, a material rack, a circulating conveyor belt, and a trough-shaped material support block. The lead screw motor is installed on the outside of the lead screw support, and the lead screw is installed at the output end of the lead screw motor. The movable carrier block is sleeved on the outside of the lead screw, and the inner end of the movable carrier block slides against the lead screw support. The material rack is installed on the outer end of the movable carrier block. Two vertically arranged circulating conveyor belts are symmetrically installed inside the material rack. Multiple trough-shaped material support blocks are equidistantly arranged on the outer side of the circulating conveyor belt. The trough-shaped material support blocks have slots for easy insertion of pre-assembled components.

8. The automated welding system for producing a combined pump cover according to claim 7, characterized in that, The second welding assembly includes a third linear guide pair, a fourth lifting push rod, a second mounting plate, a second connecting shaft, a support, a second welding head, a third steering motor, and a second belt drive component. The slider of the third linear guide pair is supported by the second mounting plate via the fourth lifting push rod. The upper end of the second connecting shaft is restricted to rotate on the lower side of the second mounting plate. The lower end of the second connecting shaft is supported by the support and has a second welding head. The third steering motor is mounted on the second mounting plate, and the output shaft of the third steering motor is connected to the second connecting shaft via the second belt drive component.

9. An automated welding method for producing combined pump covers, implemented based on the automated welding system for producing combined pump covers as described in claim 8, characterized in that, Includes the following steps: S1. Using a feeding robot, the outer cylinder pre-filled with the inner cylinder is installed on the adsorption-type loading assembly, and the outer cylinder is adsorbed and locked. The inner cylinder and the outer cylinder are welded and fixed using the first welding assembly. The outer and inner perforations are processed on the outer and inner cylinders respectively to facilitate the snapping of the pre-assembled parts using the punching and weld grinding assembly. S2. Use the pre-assembly feeding assembly to snap the pre-assembly components one by one onto the inner cylinder and outer cylinder, and use the pre-assembly replenishment assembly to feed the pre-assembly components to the pre-assembly feeding assembly. S3. After the pre-assembled parts are snapped together, the second welding assembly is used to weld and fix the outer cylinder and the insert fitting. The punching and weld grinding assembly is used to grind the weld between the insert fitting and the outer cylinder. S4. Use the first welding assembly to weld and fix the inner cylinder and the cover plate.

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