Protective cover assembly for an electric pump and laser surface treatment system and control method

Abstract

The present application relates to a kind of protective cover assembly and laser surface treatment system and control method for electric pump, belong to industrial automation assembly and precision high-end equipment manufacturing field.Trest is fixed on ground, transport device, mechanical hand clamping device and push-pull device are installed on trest, protective cover installation device and laser surface treatment device are fixed on trest respectively;The laser surface treatment device includes a positioning platform capable of two-dimensional motion in horizontal plane, a laser processing module installed on the positioning platform, and an electric pump rotating module for clamping and rotating.The advantage is that the laser head can flexibly and accurately cover the surfaces of complex three-dimensional workpieces, effectively breaking through the limitations of traditional equipment on the adaptability of special-shaped parts machining;At the same time, relying on multi-axis linkage control and industrial vision positioning, the accuracy of laser processing path is guaranteed, and uniform and consistent surface is formed on different surfaces of different workpieces.

Description

Technical Field

[0001] This invention relates to the fields of industrial automated assembly and precision high-end equipment manufacturing, particularly to electric pump assembly equipment and laser beam processing, and especially to a protective cover assembly and laser surface treatment system and control method for electric pumps. It integrates the two major processes of precision assembly of the protective cover and laser surface modification into the same automated platform, and achieves efficient, high-quality continuous production through collaborative control. Background Technology

[0002] When laser surface treatment technology is applied to industrial parts with complex three-dimensional geometric features and assembly requirements, such as electric pumps, existing technical solutions still have significant limitations: First, for components with accessories such as protective covers, the installation of the protective covers and surface functionalization are usually separate processes, requiring multiple loading and unloading and positioning, which is cumbersome and inefficient. Second, for workpieces with multiple curved surfaces and features, existing laser processing equipment often lacks a compatible multi-degree-of-freedom collaborative motion system and real-time visual feedback, often requiring manual intervention to adjust the posture, resulting in insufficient automation and processing accuracy. In addition, the various stages of the entire process from workpiece loading, assembly, precision processing to unloading are often independent of each other, lacking integrated design and a unified control system, resulting in poor production line coordination and limited overall capacity, which restricts the large-scale application of this technology in the mass production of high-end parts. Summary of the Invention

[0003] The purpose of this invention is to provide a protective cover assembly and laser surface treatment system and control method for electric pumps, solving the technical problems of low automation, poor adaptability to complex workpieces, insufficient processing efficiency and consistency, and low integration of various processes in existing laser surface processing technologies. This invention integrates multiple processes such as workpiece loading, transfer, protective cover installation, laser treatment, and unloading into a single system, achieving full-process automation, significantly improving production efficiency, and reducing labor costs and operational complexity. The system features a clear modular design, with each device functioning independently yet collaboratively. Laser processing parameters and motion paths can be flexibly adjusted and are adaptable to different materials, facilitating process optimization and functional expansion.

[0004] The above-mentioned objective of the present invention is achieved through the following technical solution:

[0005] A protective cover assembly and laser surface treatment system for an electric pump includes a frame 1, a transport device 2 for automatic feeding and positioning, a robotic gripper 3, a protective cover mounting device 4, a laser surface treatment device 5, and a pushing device 6. The frame 1 is fixed to the ground. The transport device 2, the robotic arm base 305 of the robotic gripper 3, and the pushing device 6 are mounted on the tabletop 101 of the frame 1. The protective cover mounting device 4 and the laser surface treatment device 5 are respectively fixed to the profile B104 of the frame 1 and the tabletop 101. The transport device 2 is used for conveying and initially positioning the electric pump 409. The robotic gripper 3 is used to pick up the electric pump 409 from the transport device 2 and transfer it to the protective cover mounting device 4. The protective cover mounting device 4 is used to clamp and fix the electric pump 409 and automatically complete the picking up and tightening of the protective cover. The laser surface treatment device 5 is used to perform laser surface treatment on the surface of the fixed electric pump 409, and includes a laser processing module 507 and an electric pump rotation module 509 for clamping and rotating the electric pump 409. The pusher device 6 is used to remove the processed electric pump.

[0006] The laser surface treatment device 5 uses a dual-cylinder drive to control the forward and backward movement of the laser processing module 507, achieving flexible stroke expansion. The specific structure is as follows: cylinder A501 and guide rail A502 are respectively fixed on the tabletop 101, support plate 504 is fixed on slider A503 and connected to the piston rod of cylinder A501, and moves along guide rail A502 under the drive of cylinder A501; guide rail B505 is fixed on support plate 504, and the outer shell 508 of laser processing module 507 is installed on slider C519 of guide rail B505 and connected to the piston rod of cylinder B506, and moves along guide rail B505 under the drive of cylinder B506.

[0007] The laser processing module 507 of the laser surface treatment device 5 comprises: a laser gun head 510, a transmission pulley 511, a guide rail C512, an industrial camera 513, a slider B514, and a stepper motor B515 installed inside the housing 508. The guide rail C512 and the stepper motor B515 are fixedly installed on the inner wall of the housing 508. The transmission pulley 511 is installed on the output shaft of the stepper motor B515 and connected to a belt drive system. The slider B514 is fixedly connected to the belt drive system and is sleeved on the guide rail C512, moving linearly along the guide rail C512 under the drive of the stepper motor B515. The laser gun head 510 and the industrial camera 513 are fixedly installed side by side on the slider B514 and move synchronously with the slider B514.

[0008] The electric pump rotation module 509 contains a rotary cylinder B516, a connecting plate 517, a cylinder connecting block 518, and an electric pump 409. The rotary cylinder B516 is fixed on the working platform 204 of the transport device 2. The connecting plate 517 is connected to the output shaft of the rotary cylinder B516, and the cylinder connecting block 518 is mounted on the connecting plate 517. The electric pump 409 is clamped on the cylinder connecting block 518 and is driven to rotate by the rotary cylinder B516 to perform laser treatment on its various surfaces.

[0009] The protective cover installation device 4 includes a ball screw pair 401, a coupling 402, a stepper motor A403, a torque gun 404, a support plate A405, a support plate B406, a protective cover pickup module 407, a universal coupling 408, an electric pump 409, a vibratory feeder 410, a torque gun adjustment module 411, a protective cover scraper 412, a rod cylinder A413, a cover remover 414, a pneumatic finger B415, a rod cylinder B416, a cylinder C417, a rotary cylinder A418, a locking pin 419, a protective cover tightening head 420, and a feeding channel 421. The torque gun 404 is fixedly mounted on the support plate A405, the support plate A405 is fixedly mounted on the support plate B406, the support plate B406 is fixedly connected to the nut of the ball screw assembly 401, and the ball screw assembly 401 is connected to the stepper motor A403 through the coupling 402; one end of the universal coupling 408 is connected to the torque gun 404, and the other end is connected to the protective cover tightening head 420.

[0010] The torque gun adjustment module 411 is installed on the side of the support plate A405. The cylinder C417 is connected to the locking pin 419, and the locking pin 419 is connected to the protective cover tightening head 420. The rotary cylinder A418 is connected to the protective cover tightening head 420 and is used to drive the protective cover tightening head 420 to rotate to the position to be installed on the electric pump 409. The vibrating plate 410 outputs the protective cover in an orderly manner through the feeding channel 421 through the vibration process, and cooperates with the rotary cylinder A418 to transport the protective cover to the protective cover tightening head 420, thus completing the work of removing and installing the protective cover.

[0011] The protective cover pickup module 407 is adjacent to the torque gun adjustment module 411 and is installed on one side of the support plate A405; the cylinder body of the rod cylinder B416 is fixed on the protective cover pickup module 407, and its piston rod is connected to the cover remover 414; the pneumatic finger B415 is installed on the cover remover 414; the cylinder body of the rod cylinder A413 is fixed on the protective cover pickup module 407, and its piston rod is connected to the protective cover scraper 412, which is arranged adjacent to the cover remover 414.

[0012] The transport device 2 includes a base 201, a profile frame 202, an electric push rod 203, a work platform 204, a pneumatic finger A208, and a photoelectric sensor 210. The profile frame 202 is supported and fixed on the tabletop 101 by several bases 201, and the work platform 204 is fixed on the profile frame 202. The pneumatic finger A208 is installed on the crossbeam of the profile frame 202, and the photoelectric sensor 210 is installed on the side of the profile frame 202.

[0013] The robotic gripper 3 includes a multi-degree-of-freedom robotic arm, which is fixed to the tabletop 101 by a robotic arm base 305. Motors A301, B302 and C303 drive the multi-degree-of-freedom robotic arm, and a flexible gripper 304 is installed at the end of the multi-degree-of-freedom robotic arm.

[0014] The pushing device 6 includes a material rack 601 fixed to the right side of the frame 1, and a waste box 609 fixed to the working platform 204; the cylinder body of the rod cylinder C602 is fixed to the table 101, and its piston rod is connected to the push plate 603; the push plate 603 is fixed to the slider D605, and the slider D605 is sleeved on the guide rail D604. The rod cylinder C602 drives the push plate 603 to move linearly along the guide rail D604 to realize the pushing action; the cylinder body of the rod cylinder D606 is fixed to the profile D107 and the column B106 of the frame 1, and its piston rod is connected to the conveyor chain 608, driving the conveyor chain 608 to move intermittently to realize the conveying of the electric pump 409 on the material rack 601.

[0015] The laser surface treatment device 5 uses a nanosecond pulsed laser with the following parameters: wavelength λem is 1060nm; average output power P is 100W; repetition frequency FP is 1~1000 kHz; pulse width Tp is 12~500ns; and spot diameter is 50μm.

[0016] Another object of the present invention is to provide a control method for a protective cover assembly and laser surface treatment system for an electric pump, comprising the following steps:

[0017] Step 1: The electric pump 409 to be processed is transported to the working platform 204 by the transport device 2. After the photoelectric sensor 210 detects that it is in place, the electric push rod 203 and the pneumatic finger A208 are controlled to work together to push and clamp the electric pump 409 to the photoelectric sensor 210, thus completing the initial positioning.

[0018] Step 2: The multi-degree-of-freedom robotic arm of the robotic gripper 3 moves, driving the flexible gripper 304 at its end to grasp the electric pump 409 located at the photoelectric sensor 210 and transfer it to the position of the protective cover mounting device 4.

[0019] Step 3: The automatic installation process of the protective cover includes feeding the protective cover, tightening the protective cover, reversing the torque gun, and recycling defective products. The specific process is as follows:

[0020] 1. Protective cover feeding: Vibrating plate 410 outputs the protective cover in an orderly manner through feeding channel 421 through vibration process, and transports the protective cover to the protective cover tightening head 420 to complete the cover picking action.

[0021] 2. Tightening the protective cover: Stepper motor A403 drives ball screw pair 401 to drive torque gun 404 forward, so that the protective cover tightening head 420 is connected with the protective cover mounting position of electric pump 409; universal coupling 408 compensates for angular deviation and buffers impact in real time during tightening to ensure that the protective cover is screwed in smoothly.

[0022] 3. Torque gun reversal: After the protective cover is installed, the cylinder C417 in the torque gun adjustment module 411 drives the locking pin 419 to unlock, and the rotating cylinder A418 drives the protective cover tightening head 420 to rotate downward 90° to pick up the next protective cover, and then rotates upward 90° to reset, ready for the next station installation.

[0023] 4. Recycling of defective products: If the protective cover fails to be installed, the protective cover picking module 407 starts the recycling program; the rod cylinder B416 drives the cover picker 414 to move upward to hook the defective protective cover, the pneumatic finger B415 controls the cover picker 414 to close and grab it, and then the rod cylinder B416 drives the protective cover scraper 412 to move upward to scrape the protective cover off, so that it slides down the slope into the recycling container;

[0024] Step 4: The rotary cylinder B516 of the electric pump rotary module 509 is started, which drives the clamped electric pump 409 to rotate through the connecting plate 517 and the cylinder connecting block 518, so that the surface to be processed is oriented towards the laser processing direction.

[0025] Step 5: Cylinder A501 drives the support plate 504 to move along guide rail A502, and cylinder B506 drives the housing 508 of the laser processing module 507 to move along guide rail B505. Then, stepper motor B515 drives slider B514 to slide along guide rail C512 via belt drive, so that industrial camera 513 reaches the preset focal length. Under constant light source conditions, industrial camera 513 images the surface of electric pump 409 and transmits the image to the control system for analysis to determine whether there are defects on the surface.

[0026] Step Six: If the surface quality is qualified, cylinders A501, B506 and stepper motor B515 drive the laser gun head 510 to scan and process the surface of the electric pump 409 along the three-dimensional path. The electric pump is surface treated by laser processing. After one surface is processed, return to step four to change the surface. Repeat steps four to six until all outer surfaces are processed.

[0027] Step 7: After all surface processing is completed, the pneumatic finger A208 releases its grip on the electric pump 409, entering the unloading and sorting process. If the product is deemed qualified after inspection, the rod cylinder D606 drives the conveyor chain 608 via the cylinder rod 607. Under the control of the conveyor chain 608, the pusher plate 603 of the pushing device 6 moves backward along the guide rail D604 via the slider D605, leaving the work platform 204 to make room for the electric pump 409. Subsequently, the robotic gripper 3 pushes the electric pump 409 from the processing position to the finished product area of ​​the material rack 601, completing the unloading of qualified products. If the product is deemed unqualified after inspection: the rod cylinder C602 of the pushing device 6 drives the pusher plate 603 to move forward in a straight line along the guide rail D604, directly pushing the electric pump 409 into the waste box 609, realizing the automatic sorting of unqualified products.

[0028] The beneficial effects of this invention are as follows: by highly integrating multiple processes such as loading, transfer, clamping, multi-faceted laser processing, and unloading, the entire process is automated, improving production efficiency while reducing labor costs and operational complexity. The laser head of this invention can flexibly and accurately cover all surfaces of complex three-dimensional workpieces, effectively overcoming the limitations of traditional equipment in processing irregularly shaped parts. Simultaneously, relying on multi-axis linkage control and industrial vision positioning, the accuracy of the laser processing path is ensured, guaranteeing the formation of a uniform and consistent processed surface on different surfaces of different workpieces. This effectively solves the problems of low efficiency and poor adaptability of traditional step-by-step processes, and has advantages such as high integration, high automation, and flexible processing. Attached Figure Description

[0029] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate the invention and are used to explain it, but do not constitute an undue limitation of the invention.

[0030] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0031] Figure 2 This is a schematic diagram of the test bench structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the transportation device of the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of the robotic gripper of the present invention;

[0034] Figure 5 This is a schematic diagram of the protective cover mounting device of the present invention;

[0035] Figure 6 This is a schematic diagram of the torque gun adjustment module in the protective cover mounting device of the present invention;

[0036] Figure 7 This is a schematic diagram of the protective cover picking module in the protective cover mounting device of the present invention;

[0037] Figure 8 This is a schematic diagram of the laser surface treatment structure of the present invention;

[0038] Figure 9 This is a schematic diagram of a partial internal structure of the laser processing module housing of the present invention;

[0039] Figure 10 This is a schematic diagram of the electric pump rotary module structure for laser surface treatment according to the present invention;

[0040] Figure 11 This is a schematic diagram of the pushing device of the present invention.

[0041] In the diagram: 1. Platform; 2. Transport device; 3. Robotic gripper; 4. Protective cover mounting device; 5. Laser surface treatment device; 6. Pushing device; 101. Tabletop; 102. Column A; 103. Profile A; 104. Profile B; 105. Profile C; 106. Column B; 107. Profile D; 201. Base; 202. Profile frame; 203. Electric push rod; 204. Work platform; 205. Connecting block; 206. Upper crossbeam; 207. Lower crossbeam; 208. 10. Pneumatic finger A; 209. Baffle; 210. Photoelectric sensor; 301. Motor A; 302. Motor B; 303. Motor C; 304. Flexible gripper; 305. Robotic arm base; 401. Ball screw pair; 402. Coupling; 403. Stepper motor A; 404. Torque gun; 405. Support plate A; 406. Support plate B; 407. Protective cover pickup module; 408. Universal coupling; 409. Electric pump; 410. Vibratory feeder; 411. Torque gun adjustment module 412. Protective cover scraper; 413. Rod-operated cylinder A; 414. Cover remover; 415. Pneumatic finger B; 416. Rod-operated cylinder B; 417. Cylinder C; 418. Rotary cylinder A; 419. Locking pin; 420. Protective cover tightening head; 421. Feeding channel; 501. Cylinder A; 502. Guide rail A; 503. Slider A; 504. Support plate; 505. Guide rail B; 506. Cylinder B; 507. Laser processing module; 508. Housing; 509. Electric pump rotary... 510. Module; 511. Laser gun head; 512. Transmission pulley; 513. Guide rail C; 514. Industrial camera; 515. Slider B; 516. Stepper motor B; 517. Rotary cylinder B; 518. Connecting plate; 519. Cylinder connecting block; 510. Slider C; 601. Material rack; 602. Rod cylinder C; 603. Push plate; 604. Guide rail D; 605. Slider D; 606. Rod cylinder D; 607. Cylinder rod; 608. Conveyor chain; 609. Waste box. Detailed Implementation

[0042] The technical solutions in 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. To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] See Figures 1 to 11As shown, the present invention relates to a protective cover assembly and laser surface treatment system and control method for electric pumps, belonging to the field of precision surface processing and automated assembly technology. The system includes a frame and a transport device, a robotic gripper, a protective cover installation device, a laser surface treatment device, and a pushing device mounted on it, realizing a fully integrated automated operation from electric pump loading, automatic protective cover installation, laser surface treatment to finished product unloading. Its core lies in the fact that the system first automatically assembles the protective cover to the designated position on the electric pump using a vibratory feeder and cylinders, and then the protective cover installation device completes the overall precise positioning of the electric pump. Multi-axis linkage control enables the laser to precisely cover the complex surface of the electric pump, achieving efficient and uniform surface treatment. This system integrates the two major processes of protective cover assembly and surface treatment into one, effectively solving the problems of low efficiency and poor adaptability of traditional step-by-step processes, and has the advantages of high integration, good automation, and flexible processing.

[0044] See Figure 1 As shown, the protective cover assembly and laser surface treatment system for electric pumps of the present invention includes a frame 1, a transport device 2, a robotic gripper 3, a protective cover installation device 4, a laser surface treatment device 5, and a pushing device 6. The frame 1 is fixed on the ground, providing a mounting base for other functional devices. The transport device 2, the robotic arm base 305 of the robotic gripper 3, and the pushing device 6 are mounted on the tabletop 101 of the frame 1. The protective cover installation device 4 and the laser surface treatment device 5 are respectively fixed on the profile B104 of the frame 1 and the tabletop 101. The transport device 2 is used for transporting and initially positioning the electric pump 409 to be processed. The robotic gripper 3 is used to grab the electric pump 409 from the transport device 2 and transfer it to the protective cover installation device 4. The protective cover installation device 4 is responsible for accurately positioning the electric pump 409 and installing the protective cover. The laser surface treatment device 5 performs multi-faceted laser processing on the electric pump 409 with the protective cover installed. The pushing device 6 is responsible for transporting the finished product to a designated location, realizing fully automated operation.

[0045] See Figure 2 As shown, the frame 1 includes a desktop 101, columns A102 and B106, and profiles A103, B104, C105, and D107 connecting the columns. Columns A102 and B106 are vertically fixed to both ends of the desktop 101, forming the main support. Profiles A103, B104, C105, and D107 connect between columns A102 and B106, forming the upper support frame of the system, used for installing and fixing other heavy or cantilever components.

[0046] See Figure 3As shown, the transport device 2 includes a base 201, a profile frame 202, an electric push rod 203, a work platform 204, a connecting block 205, an upper crossbeam 206, a lower crossbeam 207, a pneumatic finger A208, a baffle 209, and a photoelectric sensor 210. Multiple bases 201 are fixed on the tabletop 101, supporting the profile frame 202 and the work platform 204, with the work platform 204 fixed above the profile frame 202. The electric push rod 203 is mounted on the profile frame 202, and the work platform 204 is fixed on the profile frame 202. The pneumatic finger A208 is mounted on the lower crossbeam 207 and the baffle 209, and is used for the transfer of the electric pump 409. The lower crossbeam 207 and the upper crossbeam 206 are fixed parallel to each other on the profile C105 of the platform 1, and the upper crossbeam 206 is connected to the profile C105 of the platform 1 via the connecting block 205. The photoelectric sensor 210 is installed on the side of the profile frame 202 for positioning. The electric pump 409 is placed on the work platform 204. After the photoelectric sensor 210 detects that it is in position, the electric push rod 203 and the pneumatic finger A208 work together to push and clamp the electric pump 409 to the designated loading station, completing the initial positioning and sorting.

[0047] See Figure 4 As shown, the robotic gripper 3 includes motor A301, motor B302, motor C303, flexible gripper 304, and robotic arm base 305. The robotic arm base 305 is fixed on the tabletop 101 of the platform 1. Motors A301, B302, and C303 drive a multi-joint, multi-degree-of-freedom robotic arm, controlling the spatial position and gripping action of the flexible gripper 304 at the end, thus achieving multi-degree-of-freedom spatial movement. The flexible gripper 304 is made of flexible materials such as rubber and is used to safely and stably grasp the electric pump 409 from the transport device 2 and accurately transfer it to the predetermined clamping position of the protective cover mounting device 4.

[0048] See Figure 5As shown, the protective cover mounting device 4 includes a ball screw assembly 401, a coupling 402, a stepper motor A403, a torque gun 404, a support plate A405, a support plate B406, a protective cover pickup module 407, a universal coupling 408, an electric pump 409, a vibratory feeder 410, a torque gun adjustment module 411, and a feeding channel 421. The stepper motor A403 is mounted on the desktop 101 and drives the ball screw assembly 401 via the coupling 402. The support plate B406 is fixedly connected to the nut of the ball screw assembly 401 and can move linearly along the screw axis under the drive of the stepper motor A403. The torque gun 404 is mounted on the support plate A405, and the support plate A405 is fixed to the support plate B406. The vibratory feeder 410 is installed on the rear side of the desktop 101 and fixed on the baffle 209. Vibration causes the protective cover to be output in an orderly manner through the feeding channel 421, and the protective cover is then transported to the protective cover tightening head 420 by components such as the rotary cylinder A418, completing the cover removal and initial installation. The universal coupling 408 connects the protective cover tightening head 420 and the torque gun 404, used to compensate for angular deviations and buffer instantaneous impacts during tightening, ensuring the stability and reliability of the protective cover installation and preventing damage to the protective cover or threads due to jamming.

[0049] See Figure 6 As shown, the torque gun adjustment module 411 is installed on the side of the support plate A405. This module is used to control the direction switching of the protective cover tightening head 420 and includes a cylinder C417, a rotary cylinder A418, a locking pin 419, and the protective cover tightening head 420. After the protective cover of the electric pump at one station is installed, the cylinder C417 drives the locking pin 419 to move to the left, releasing the lock on the protective cover tightening head 420; then the rotary cylinder A418 drives the protective cover tightening head 420 to rotate downwards by 90° to complete the pickup of the next protective cover; after pickup, the rotary cylinder A418 drives the protective cover tightening head 420 to rotate upwards by 90° to reset, preparing for the loading of the protective cover at the next station. Through the coordinated operation of the torque gun adjustment module 411 and the universal coupling 408, continuous automatic installation and attitude adjustment of the protective cover are realized.

[0050] See Figure 7As shown, the protective cover pickup module 407 is used to recover defective protective covers that have failed to be installed. It includes a protective cover scraper 412, a rod cylinder A413, a cover picker 414, a pneumatic finger B415, and a rod cylinder B416. When a protective cover fails to be installed, the rod cylinder B416 drives the cover picker 414 to move upward and contact the protective cover. Then, the pneumatic finger B415 drives the cover picker 414 to open and hook the non-compliant protective cover. The cover picker 414 moves downward, and the pneumatic finger B415 drives the cover picker 414 to close. At the same time, the rod cylinder B416 drives the protective cover scraper 412 to move upward, scraping the protective cover off the cover picker 414. The protective cover slides down the inclined surface of the protective cover scraper 412 into the recycling container, completing the automatic recovery of the defective protective cover.

[0051] See Figure 8 As shown, the laser surface treatment device 5 includes a cylinder A501, a guide rail A502, a slider A503, a support plate 504, a guide rail B505, a cylinder B506, a laser processing module 507, and an electric pump rotation module 509. The cylinder A501 and guide rail A502 are fixed to the tabletop 101. The support plate 504 is connected to the slider A503. The guide rail B505 is fixed to the support plate 504. The housing 508 of the laser processing module 507 is mounted on the slider C519 of the guide rail B505.

[0052] See Figure 9 As shown, the laser processing module 507 comprises: a laser gun head 510, a transmission pulley 511, a guide rail C512, an industrial camera 513, a slider B514, and a stepper motor B515, all housed inside a housing 508. The stepper motor B515 and the guide rail C512 are fixed to the inner wall of the housing 508. The transmission pulley 511 is mounted on the output shaft of the stepper motor B515 and connected to the slider B514 via a belt drive system. The laser gun head 510 and the industrial camera 513 are fixed side-by-side on the slider B514. The stepper motor B515 drives the belt drive, enabling the slider B514 and its associated laser gun head 510 and industrial camera 513 to perform precise vertical lifting and lowering movements along the guide rail C512 to adjust the processing focal length.

[0053] See Figure 10 As shown, the electric pump rotation module 509 includes a rotary cylinder B516, a connecting plate 517, and a cylinder connecting block 518. The rotary cylinder B516 is fixed on the working platform 204 of the transport device 2. The connecting plate 517 is connected to the output shaft of the rotary cylinder B516. The cylinder connecting block 518 is mounted on the connecting plate 517 and is used to receive and clamp the electric pump 409 from the protective cover mounting device 4. During laser processing, the rotary cylinder B516 can precisely drive the electric pump 409 to rotate, thereby sequentially facing each surface to be processed toward the laser gun head 510, realizing continuous automated processing of multiple surfaces by the electric pump.

[0054] See Figure 11 As shown, the pushing device 6 includes a material rack 601, a rod cylinder C602, a push plate 603, a guide rail D604, a slider D605, a rod cylinder D606, a cylinder rod 607, a conveyor chain 608, and a waste box 609. The material rack 601 is fixed to the right side of the frame 1, and the waste box 609 is fixed to the work platform 204. The waste box 609 is used to collect electric pumps with poor surface treatment effects during processing. The cylinder body of the rod cylinder C602 is fixed to the table 101; the push plate 603 is fixed to the slider D605, and the slider D605 is sleeved on the guide rail D604 fixed to the table. After the electric pump 409 completes processing, the rod cylinder D606 drives the conveyor chain 608 via the cylinder rod 607. Driven by the conveyor chain 608, the push plate 603 moves backward along the guide rail D604 via the slider D605, leaving the work platform 204. Then, a robotic gripper pushes the electric pump to the material rack 601, completing the unloading process. If the product is defective, the rod cylinder C602 drives the push plate 603 to move linearly along the guide rail D604, pushing the electric pump 409 into the waste bin 609.

[0055] See Figures 1 to 11 As shown, the working process of this invention is as follows:

[0056] 1. Loading and Positioning: The electric pump 409 to be processed is manually placed on the working platform 204 of the transport device 2. After the photoelectric sensor 210 detects that the electric pump has arrived, the electric push rod 203 and the pneumatic finger A208 work together to push and clamp the electric pump 409 to the designated loading station, completing the initial positioning.

[0057] II. Electric Pump Transfer and Clamping: The multi-degree-of-freedom robotic arm of the robotic gripper 3 moves under the drive of motors A301, B302, and C303, and its flexible gripper 304 at the end grasps the electric pump. Subsequently, the multi-degree-of-freedom robotic arm precisely transfers the electric pump to the clamping position of the protective cover mounting device 4 in front of the photoelectric sensor 210.

[0058] III. The automatic installation of protective covers, including protective cover feeding, protective cover tightening, torque gun reversal, and non-conforming product recycling, follows the specific process as follows:

[0059] 1. Protective cover feeding: Vibrating plate 410 outputs the protective cover in an orderly manner through feeding channel 421 through vibration process, and transports the protective cover to the protective cover tightening head 420 to complete the cover picking action.

[0060] 2. Tightening the protective cover: Stepper motor A403 drives ball screw pair 401 to drive torque gun 404 forward, so that the protective cover tightening head 420 is connected with the protective cover mounting position of electric pump 409; universal coupling 408 compensates for angular deviation and buffers impact in real time during tightening to ensure that the protective cover is screwed in smoothly.

[0061] 3. Torque gun reversal: After the protective cover is installed, the cylinder C417 in the torque gun adjustment module 411 drives the locking pin 419 to unlock, and the rotating cylinder A418 drives the protective cover tightening head 420 to rotate downward 90° to pick up the next protective cover, and then rotates upward 90° to reset, ready for the next station installation.

[0062] 4. Recycling of defective products: If the protective cover fails to be installed, the protective cover picking module 407 starts the recycling program; the rod cylinder B416 drives the cover picker 414 to move upward to hook the defective protective cover, the pneumatic finger B415 controls the cover picker 414 to close and grab it, and then the rod cylinder B416 drives the protective cover scraper 412 to move upward to scrape the protective cover off, so that it slides down the slope into the recycling container;

[0063] IV. Electric Pump Rotation Positioning: The rotary cylinder B516 of the electric pump rotation module 509 is started, and the clamped electric pump 409 is driven to rotate through the connecting plate 517 and the cylinder connecting block 518, so that the surface to be processed is oriented towards the laser processing direction.

[0064] V. Laser Head 3D Positioning and Surface Pre-inspection: First, cylinder A501 drives the support plate 504 to move along guide rail A502; then, cylinder B506, fixed on the support plate 504, drives the housing 508 of the laser processing module 507 to move along guide rail B505. Inside the laser processing module 507, stepper motor B515 drives slider B514 along guide rail C512 via transmission pulley 511 and belt, allowing the industrial camera 513 to reach a preset focal length. Under constant light source conditions, the industrial camera 513 images the current electric pump surface and transmits the image to the control system for analysis to determine if there are any obvious defects on the surface.

[0065] VI. Laser Processing: If the surface quality is acceptable, the control system coordinates the movement of cylinders A501, B506, and stepper motor B515 according to a preset program, driving the laser gun head 510 to scan and process the surface of the current electric pump 409 along the planned three-dimensional path. Laser processing is then used to treat the surface of the electric pump. After one surface is processed, the electric pump rotation module 509 drives the electric pump 409 to change its angle, so that the next surface to be processed faces the laser gun head 510. The process returns to step four for surface switching, repeating steps four through six until all outer surfaces are processed.

[0066] VII. Unloading and Sorting Output: After all surface processing is completed, the pneumatic finger A208 releases its grip on the electric pump 409, entering the unloading and sorting process. If the product is deemed qualified by inspection, the rod cylinder D606 drives the conveyor chain 608 via the cylinder rod 607. Under the control of the conveyor chain 608, the pusher plate 603 of the pushing device 6 moves backward along the guide rail D604 via the slider D605, leaving the work platform 204 to make room for the electric pump 409. Subsequently, the robotic gripper 3 pushes the electric pump 409 from the processing position to the finished product area of ​​the material rack 601, completing the unloading of qualified products. If the product is deemed unqualified by inspection: the rod cylinder C602 of the pushing device 6 drives the pusher plate 603 to move forward linearly along the guide rail D604, directly pushing the electric pump 409 into the waste box 609, realizing the automatic sorting of unqualified products.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made to the present invention should be included within the scope of protection of the present invention.

Claims

1. A protective cover assembly and laser surface treatment system for electric pumps, characterized in that: The device includes a frame (1), a transport device (2) for automatic feeding and positioning, a robotic gripper (3), a protective cover mounting device (4), a laser surface treatment device (5), and a pushing device (6); the frame (1) is fixed on the ground, and the base (305) of the transport device (2), the robotic gripper (3), and the pushing device (6) are mounted on the tabletop (101) of the frame (1); the protective cover mounting device (4) and the laser surface treatment device (5) are respectively fixed on the profile B (104) and the tabletop (101) of the frame (1); the laser surface treatment device (5) includes a laser processing module (507) and an electric pump rotation module (509). The laser surface treatment device (5) uses a dual-cylinder drive to control the laser processing module (507) to move back and forth, so as to achieve flexible extension of the stroke. The specific structure is as follows: cylinder A (501) and guide rail A (502) are fixed on the table (101) respectively. The support plate (504) is fixed on the slider A (503) and connected to the piston rod of cylinder A (501). Under the drive of cylinder A (501), it moves along the guide rail A (502); the guide rail B (505) is fixed on the support plate (504). The outer shell (508) of the laser processing module (507) is installed on the slider C (519) of the guide rail B (505) and connected to the piston rod of cylinder B (506). Under the drive of cylinder B (506), it moves along the guide rail B (505). The protective cover mounting device (4) is as follows: a torque gun (404) is fixedly mounted on a support plate A (405), a torque gun adjustment module (411) is mounted on the side of the support plate A (405), the support plate A (405) is fixedly mounted on a support plate B (406), the support plate B (406) is fixedly connected to the nut of the ball screw pair (401), the ball screw pair (401) is connected to the stepper motor A (403) through a coupling (402); one end of the universal coupling (408) is connected to the torque gun (404), and the other end is connected to the protective cover tightening head ( 420) Connection; The protective cover pickup module (407) is adjacent to the torque gun adjustment module (411) and installed on one side of the support plate A (405). The cylinder body of the rod cylinder B (416) is fixed on the protective cover pickup module (407), and its piston rod is connected to the cover taker (414). The pneumatic finger B (415) is installed on the cover taker (414). The cylinder body of the rod cylinder A (413) is fixed on the protective cover pickup module (407), and its piston rod is connected to the protective cover scraper (412). The protective cover scraper (412) is set adjacent to the cover taker (414). The protective cover tightening head (420) is connected to the locking pin (419), the cylinder C (417) is connected to the locking pin (419), and the rotary cylinder A (418) is connected to the protective cover tightening head (420), driving the protective cover tightening head (420) to rotate to correspond to the installation position of the electric pump (409); the vibratory plate (410) outputs the protective cover in an orderly manner through the feeding channel (421) through the vibration process, and cooperates with the rotary cylinder A (418) to transport the protective cover to the protective cover tightening head (420), completing the work of taking off the cover and installing the protective cover.

2. The protective cover assembly and laser surface treatment system for electric pumps according to claim 1, characterized in that: The laser processing module (507) consists of: a laser gun head (510), a transmission pulley (511), a guide rail C (512), an industrial camera (513), a slider B (514), and a stepper motor B (515) installed inside the outer shell (508). The guide rail C (512) and the stepper motor B (515) are fixedly installed on the inner wall of the outer shell (508). The transmission pulley (511) is installed on the output shaft of the stepper motor B (515) and connected to a belt drive system. The slider B (514) is fixedly connected to the belt drive system and is sleeved on the guide rail C (512). Under the drive of the stepper motor B (515), it moves linearly along the guide rail C (512). The laser gun head (510) and the industrial camera (513) are fixedly installed side by side on the slider B (514) and move synchronously with the slider B (514).

3. The protective cover assembly and laser surface treatment system for electric pumps according to claim 1, characterized in that: The electric pump rotation module (509) contains a rotary cylinder B (516), a connecting plate (517), a cylinder connecting block (518), and an electric pump (409). The rotary cylinder B (516) is fixed on the working platform (204) of the transport device (2). The connecting plate (517) is connected to the output shaft of the rotary cylinder B (516). The cylinder connecting block (518) is installed on the connecting plate (517). The electric pump (409) is clamped on the cylinder connecting block (518) and is driven by the rotary cylinder B (516) to rotate in order to perform laser treatment on its various surfaces.

4. The protective cover assembly and laser surface treatment system for electric pumps according to claim 1, characterized in that: The transport device (2) includes a base (201), a profile frame (202), an electric push rod (203), a work platform (204), a pneumatic finger A (208), and a photoelectric sensor (210). The profile frame (202) is supported and fixed on the table (101) by several bases (201), and the work platform (204) is fixed on the profile frame (202). The pneumatic finger A (208) is installed on the crossbeam of the profile frame (202), and the photoelectric sensor (210) is installed on the side of the profile frame (202).

5. The protective cover assembly and laser surface treatment system for electric pumps according to claim 1, characterized in that: The robotic gripper (3) includes a multi-degree-of-freedom robotic arm, which is fixed on the table (101) by a robotic arm base (305). Motors A (301), B (302) and C (303) drive the multi-degree-of-freedom robotic arm, and a flexible gripper (304) is installed at the end of the multi-degree-of-freedom robotic arm.

6. The protective cover assembly and laser surface treatment system for an electric pump according to claim 1, characterized in that: The pushing device (6) is as follows: the material rack (601) is fixed on the right side of the frame (1), and the waste box (609) is fixed on the working platform (204); the cylinder body of the rod cylinder C (602) is fixed on the table (101), the push plate (603) is fixed on the slider C (605), the slider C (605) is sleeved on the guide rail D (604), the rod cylinder C (602) drives the push plate (603) to move linearly along the guide rail D (604) to realize the pushing action; the cylinder body of the rod cylinder D (606) is fixed on the profile D (107) and the column B (106) of the frame (1), the cylinder rod (607) of the rod cylinder D (606) is connected to the conveyor chain (608), and drives the conveyor chain (608) to move intermittently to realize the conveying of the electric pump (409) on the material rack (601).

7. The protective cover assembly and laser surface treatment system for electric pumps according to claim 1, characterized in that: The laser surface treatment device (5) uses a nanosecond pulsed laser with the following parameters: wavelength λem is 1060nm; average output power P is 100W; repetition frequency FP is 1~1000 kHz; pulse width Tp is 12~500ns; and spot diameter is 50μm.

8. The protective cover assembly and laser surface treatment system for an electric pump according to any one of claims 1 to 7, characterized in that: The control method includes the following steps: Step 1: The electric pump (409) to be processed is transported to the work platform (204) by the transport device (2). After the photoelectric sensor (210) detects that it is in place, the electric push rod (203) and the pneumatic finger A (208) are controlled to work together to push the electric pump (409) and clamp it to the photoelectric sensor (210) to complete the initial positioning. Step 2: The multi-degree-of-freedom robotic arm of the robotic gripper (3) moves, driving the flexible gripper (304) at its end to grab the electric pump (409) located at the photoelectric sensor (210) and transfer it to the position of the protective cover mounting device (4); Step 3: The automatic installation process of the protective cover includes feeding the protective cover, tightening the protective cover, reversing the torque gun, and recycling defective products. The specific process is as follows: Protective cover loading: The vibratory plate (410) outputs the protective cover in an orderly manner through the feeding channel (421) through the vibration process, and transports the protective cover to the protective cover tightening head (420) to complete the cover picking action; Tightening the protective cover: Stepper motor A (403) drives ball screw pair (401) to drive torque gun (404) forward, so that the protective cover tightening head (420) docks with the protective cover mounting position of electric pump (409); Universal coupling (408) compensates for angle deviation and buffers impact in real time during tightening to ensure that the protective cover is screwed in smoothly; Torque gun reversal: After the protective cover is installed, the cylinder C (417) in the torque gun adjustment module (411) drives the locking pin (419) to unlock, and the rotating cylinder A (418) drives the protective cover tightening head (420) to rotate downward 90° to pick up the next protective cover, and then rotates upward 90° to reset, ready for the next station installation; Non-conforming product recycling: If the protective cover fails to be installed, the protective cover picking module (407) starts the recycling program; the rod cylinder B (416) drives the cover picker (414) to move upward to hook the non-conforming protective cover, the pneumatic finger B (415) controls the cover picker (414) to close and grab, and then the rod cylinder B (416) drives the protective cover scraper (412) to move upward to scrape the protective cover off, so that it slides down the slope into the recycling container; Step 4: The rotary cylinder B (516) of the electric pump rotary module (509) is started, and the clamped electric pump (409) is driven to rotate through the connecting plate (517) and the cylinder connecting block (518), so that the surface to be processed is oriented towards the laser processing direction; Step 5: Cylinder A (501) drives the support plate (504) to move along guide rail A (502), and cylinder B (506) drives the housing (508) of the laser processing module (507) to move along guide rail B (505). Then, stepper motor B (515) drives slider B (514) to slide along guide rail C (512) through belt transmission, so that the industrial camera (513) reaches the preset focal length. Under constant light source conditions, the industrial camera (513) images the surface of the electric pump (409) and transmits the image to the control system for analysis to determine whether there are defects on the surface. Step 6: If the surface quality is qualified, cylinder A (501), cylinder B (506) and stepper motor B (515) drive the laser gun head (510) to scan and process the surface of the electric pump (409) along the three-dimensional path. The electric pump is surface treated by laser processing. After one surface is processed, return to step 4 to change the surface. Repeat steps 4 to 6 until all the outer surfaces are processed. Step 7: After all surface processing is completed, the pneumatic finger A (208) releases its grip on the electric pump (409) and enters the unloading and sorting process; if the product is qualified after inspection, the rod cylinder D (606) drives the conveyor chain (608) through the cylinder rod (607), and the push plate (603) of the pushing device (6) moves backward along the guide rail D (604) through the slider C (605) under the control of the conveyor chain (608), leaving the work platform (204). ), to make room for the electric pump (409) to move out; then the robotic gripper (3) pushes the electric pump (409) from the processing position to the finished product area of ​​the material rack (601) to complete the unloading of qualified products; if the product is determined to be unqualified by inspection, the rod cylinder C (602) of the pushing device (6) drives the push plate (603) to move straight along the guide rail D (604) to push the electric pump (409) directly into the waste box (609) to realize the automatic sorting of unqualified products.

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