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CN-121847967-B - Protective cover assembly and laser surface treatment system for electric pump and control method

CN121847967BCN 121847967 BCN121847967 BCN 121847967BCN-121847967-B

Abstract

The invention relates to a protective cover assembly and laser surface treatment system for an electric pump and a control method, and belongs to the field of industrial automatic assembly and precise high-end equipment manufacturing. The rack is fixed on the ground, the transportation device, the manipulator clamping device and the pushing device are arranged on the rack, and the protective cover mounting device and the laser surface treatment device are respectively fixed on the rack; the laser surface treatment device comprises a positioning platform capable of performing two-dimensional motion in a horizontal plane, a laser treatment module mounted on the positioning platform, and an electric pump rotation module for clamping and rotating. The laser head has the advantages that the laser head can flexibly and accurately cover all surfaces of complex three-dimensional workpieces, effectively breaks through the limitation of insufficient processing adaptability of traditional equipment to special-shaped workpieces, and simultaneously ensures the accuracy of laser processing paths and ensures that uniform and consistent surfaces are formed on different surfaces of different workpieces by means of multi-axis linkage control and industrial vision positioning.

Inventors

  • ZHU XIANYONG
  • WANG NAN
  • SONG YULAI
  • XIAO XIONG
  • YANG SONG
  • JIANG CHENG
  • LUO YANRU
  • LIU JIAAN

Assignees

  • 吉林大学

Dates

Publication Date
20260512
Application Date
20260317

Claims (8)

  1. 1. The protective cover assembly and laser surface treatment system for the electric pump is characterized by comprising a rack (1), a conveying device (2) for automatic feeding and positioning, a manipulator clamping device (3), a protective cover mounting device (4), a laser surface treatment device (5) and a pushing device (6), wherein the rack (1) is fixed on the ground, a base (305) of the manipulator clamping device (3) and the pushing device (6) are mounted on a table top (101) of the rack (1), the protective cover mounting device (4) and the laser surface treatment device (5) are respectively fixed on a section B (104) and the table top (101) of the rack (1), and the laser surface treatment device (5) comprises a laser treatment module (507) and an electric pump rotation module (509); The laser surface treatment device (5) adopts a double-cylinder driving mode to control a laser treatment module (507) to move forwards and backwards so as to realize flexible extension of a stroke, and the specific structure is that a cylinder A (501) and a guide rail A (502) are respectively fixed on a table top (101), a supporting vertical plate (504) is fixed on a sliding block A (503) and connected with a piston rod of the cylinder A (501) to move along the guide rail A (502) under the driving of the cylinder A (501), a guide rail B (505) is fixed on the supporting vertical plate (504), a shell (508) of the laser treatment module (507) is arranged on a sliding block C (519) of the guide rail B (505) and connected with the piston rod of the cylinder B (506), and the supporting vertical plate (504) is driven by the cylinder B (506) to move along the guide rail B (505); The protective cover mounting device (4) is characterized in that a torque gun (404) is fixedly mounted on a support plate A (405), a torque gun adjusting module (411) is mounted on the side surface 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 with a nut of a ball screw pair (401), the ball screw pair (401) is connected with a stepping motor A (403) through a coupling (402), one end of a universal coupling (408) is connected with the torque gun (404) and the other end is connected with a protective cover screwing head (420), the protective cover picking module (407) is adjacent to the torque gun adjusting module (411), a cylinder body with a rod cylinder B (416) is mounted on one side of the support plate A (405), a piston rod of the protective cover picking module is connected with a cover taking device (414), a pneumatic finger B (415) is mounted on the cover taking device (414), a cylinder body with the rod cylinder A (413) is fixedly mounted on the protective cover picking module (407), and the piston rod B is connected with a protective cover scraping plate (412) and the protective cover scraping plate (412) is adjacent to the cover taking device (414); The protective cover screwing head (420) is connected with the locking pin (419) in a matched mode, the air cylinder C (417) is connected with the locking pin (419), the rotary air cylinder A (418) is connected with the protective cover screwing head (420) and drives the protective cover screwing head (420) to rotate to correspond to a position to be mounted of the electric pump (409), the protective cover is orderly output through the feeding channel (421) through the vibration process by the vibration disc (410), and the protective cover is conveyed to the protective cover screwing head (420) in a matched mode through the rotary air cylinder A (418), so that cover taking and protective cover mounting are completed.
  2. 2. The protective cover assembly and laser surface treatment system for the electric pump of claim 1, wherein the laser treatment module (507) is characterized in that a laser gun head (510), a transmission belt wheel (511), a guide rail C (512), an industrial camera (513), a slide block B (514) and a stepping motor B (515) are arranged in the shell (508), the guide rail C (512) and the stepping motor B (515) are fixedly arranged on the inner wall of the shell (508), the transmission belt wheel (511) is arranged on an output shaft of the stepping motor B (515) and connected with a belt transmission system, the slide block B (514) is fixedly connected with the belt transmission system and sleeved on the guide rail C (512), and the laser gun head (510) and the industrial camera (513) are fixedly arranged on the slide block B (514) in parallel and synchronously move along with the slide block B (514).
  3. 3. The system for assembling and laser surface treatment of protective cover for electric pump according to claim 1, wherein the electric pump rotating module (509) comprises a rotating cylinder B (516), a connecting plate (517), a cylinder connecting block (518) and an electric pump (409), wherein the rotating cylinder B (516) is fixed on the working platform (204) of the transportation device (2), the connecting plate (517) is connected with the output shaft of the rotating 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 to rotate by the rotating cylinder B (516) to perform laser treatment on each surface.
  4. 4. The protective cover assembly and laser surface treatment system for the electric pump according to claim 1, wherein the transporting device (2) comprises a base (201), a profile frame (202), an electric push rod (203), a working platform (204), a pneumatic finger A (208) and a photoelectric sensor (210), the profile frame (202) is supported and fixed on a table top (101) through a plurality of bases (201), the working platform (204) is fixed on the profile frame (202), the pneumatic finger A (208) is installed on a cross beam of the profile frame (202), and the photoelectric sensor (210) is installed on the side edge of the profile frame (202).
  5. 5. The system for assembling and processing the surface of the protective cover for the electric pump according to claim 1, wherein the manipulator clamping device (3) comprises a multi-degree-of-freedom manipulator which is fixed on the table top (101) through a manipulator base (305), a motor A (301), a motor B (302) and a motor C (303) drive the multi-degree-of-freedom manipulator, and a flexible clamping jaw (304) is arranged at the tail end of the multi-degree-of-freedom manipulator.
  6. 6. The protective cover assembly and laser surface treatment system for the electric pump according to claim 1, wherein the pushing device (6) is characterized in that a material rack (601) is fixed on the right side of the rack (1), a waste box (609) is fixed on a working platform (204), a cylinder body of a rod cylinder C (602) is fixed on a tabletop (101), a pushing plate (603) is fixed on a sliding block C (605), the sliding block C (605) is sleeved on a guide rail D (604), the rod cylinder C (602) drives the pushing plate (603) to linearly move along the guide rail D (604) to realize pushing action, the cylinder body of the rod cylinder D (606) is fixed on a section bar D (107) and a column B (106) of the rack (1), and a cylinder rod (607) of the rod cylinder D (606) is connected with a conveying chain (608) to drive the conveying chain (608) to intermittently move so as to realize conveying of the electric pump (409) on the material rack (601).
  7. 7. The protective cover assembly and laser surface treatment system for the electric pump according to claim 1 is characterized in that the laser surface treatment device (5) adopts a nanosecond pulse laser, wherein specific parameters are that the wavelength lambdaem is 1060nm, the average output power P is 100W, the repetition frequency FP is 1-1000 kHz, the pulse width Tp is 12-500 ns, and the spot diameter is 50 μm.
  8. 8. The protective cover assembly and laser surface treatment system for an electric pump according to any one of claims 1 to 7, wherein the control method comprises the steps of: Firstly, conveying an electric pump (409) to be processed to a working platform (204) through a conveying device (2), controlling an electric push rod (203) to act cooperatively with a pneumatic finger A (208) after the electric pump is detected in place by a photoelectric sensor (210), pushing and clamping the electric pump (409) to the photoelectric sensor (210), and completing preliminary positioning; step two, the multi-degree-of-freedom mechanical arm of the mechanical arm clamping device (3) moves to drive the flexible clamping jaw (304) at the tail end of the mechanical arm to grab the electric pump (409) positioned at the photoelectric sensor (210) and transfer the electric pump to the position of the protective cover mounting device (4); The third step, the automatic installation process of the protective cover comprises the specific processes of feeding the protective cover, screwing the protective cover, reversing the torsion gun and recycling unqualified products, wherein the specific processes are as follows: The protective cover is fed, namely the vibration disc (410) orderly outputs the protective cover through the feeding channel (421) in a vibration process, and the protective cover is conveyed to the protective cover screwing head (420) to finish the cover taking action; The protective cover is screwed, namely the stepping motor A (403) drives the ball screw pair (401) to drive the torque gun (404) to advance, so that the protective cover screwing head (420) is in butt joint with the protective cover mounting position of the electric pump (409); After the installation of the protective cover is completed, a cylinder C (417) in the torsion gun adjusting module (411) drives a locking pin (419) to unlock, a rotary cylinder A (418) drives a protective cover screwing head (420) to rotate downwards by 90 degrees to pick up the next protective cover, and then the protective cover is rotated upwards by 90 degrees to reset and prepare for the installation of the next station; The method comprises the steps of recovering unqualified products, namely, if the installation of a protective cover fails, starting a recovery program by a protective cover pickup module (407), driving a cover remover (414) to move upwards by a rod cylinder B (416) to hook the unqualified protective cover, controlling the cover remover (414) to be closed and grabbed by a pneumatic finger B (415), and then driving a protective cover scraper (412) to move upwards by the rod cylinder B (416) to scrape the protective cover down so as to enable the protective cover to slide into a recovery container along an inclined plane; Starting a rotary air cylinder B (516) of an electric pump rotary module (509), driving the clamped electric pump (409) to rotate through a connecting plate (517) and an air cylinder connecting block (518), and enabling the surface to be processed to face the laser processing direction; A cylinder A (501) drives a supporting vertical plate (504) to move along a guide rail A (502), a cylinder B (506) drives a shell (508) of a laser processing module (507) to move along a guide rail B (505), and then a stepping motor B (515) drives a sliding block B (514) to slide along a guide rail C (512) through belt transmission so that an industrial camera (513) reaches a preset focal length; Step six, if the surface quality is qualified, driving a laser gun head (510) by a cylinder A (501), a cylinder B (506) and a stepping motor B (515) to scan the surface of an electric pump (409) along a three-dimensional path, and carrying out surface treatment on the electric pump through laser processing; The method comprises the steps of finishing surface machining, loosening clamping of an electric pump (409) by a pneumatic finger A (208), entering a blanking and sorting process, driving a conveying chain (608) by a rod cylinder D (606) through a cylinder rod (607) if a product is judged to be qualified through detection, enabling a push plate (603) of a pushing device (6) to move backwards along a guide rail D (604) through a sliding block C (605) under the control of the conveying chain (608), leaving a working platform (204) to move out of a yielding space for the electric pump (409), pushing the electric pump (409) to a finished product area of a material frame (601) from a machining position by a mechanical arm clamping device (3) to finish blanking of qualified products, and driving the push plate (603) to move forwards linearly along the guide rail D (604) by a rod cylinder C (602) of the pushing device (6) if the product is judged to be unqualified through detection, and directly pushing the electric pump (409) into a waste box (609) to realize automatic sorting of the unqualified products.

Description

Protective cover assembly and laser surface treatment system for electric pump and control method Technical Field The invention relates to the field of industrial automatic assembly and precise high-end equipment manufacturing, in particular to the field of electric pump assembly equipment and laser beam machining, and particularly relates to a protective cover assembly and laser surface treatment system for an electric pump and a control method. The two working procedures of precise assembly of the protective cover and laser surface modification are integrated on the same automatic platform, and high-efficiency and high-quality continuous production equipment and technology are realized through cooperative control. Background When the laser surface treatment technology is applied to industrial parts with complex three-dimensional geometric characteristics and assembly requirements, such as an electric pump, the prior art scheme still has significant limitations that firstly, for assemblies with accessories such as protective covers, the installation and surface functionalization treatment of the protective covers are usually separation procedures, multiple feeding and discharging and positioning are needed, the process is complicated and the efficiency is low, secondly, for multi-curved-surface and multi-characteristic workpieces, the prior laser processing equipment often lacks a multi-degree-of-freedom cooperative motion system and real-time visual feedback which are matched with the multi-curved-surface and multi-characteristic workpieces, manual intervention is needed to adjust the gesture, the degree of automation and the processing precision are insufficient, and furthermore, all links from workpiece feeding, assembly and precise treatment to blanking often mutually independent, lack an integrated design and unified control system, so that the production line is poor in cooperation and limited in whole capacity, and the large-scale application of the technology in high-end part batch manufacturing is restricted. Disclosure of Invention The invention aims to provide a protective cover assembly and laser surface treatment system for an electric pump and a control method thereof, which solve the technical problems of low automation degree, poor adaptability to complex workpieces, insufficient machining efficiency and consistency, low integration level of each process and the like in the existing laser surface machining technology. According to the invention, a plurality of working procedures such as workpiece feeding, transferring, protective cover mounting, laser processing, blanking conveying and the like are integrated into one system, so that full-process automation is realized, the production efficiency is remarkably improved, and the labor cost and the operation complexity are reduced. The modular design of the system is clear, and the functions of the devices are independent and can be cooperated. The laser processing parameters and the motion path can be flexibly adjusted, are suitable for different materials, and are easy to process optimization and function expansion. The above object of the present invention is achieved by the following technical solutions: the protective cover assembly and laser surface treatment system for the electric pump comprises a rack 1, a conveying device 2, a manipulator clamping device 3, a protective cover mounting device 4, a laser surface treatment device 5 and a pushing device 6, wherein the conveying device 2 is used for automatically feeding and positioning, the rack 1 is fixed on the ground, a manipulator base 305 and the pushing device 6 of the conveying device 2, the manipulator clamping device 3 are mounted on a table top 101 of the rack 1, and the protective cover mounting device 4 and the laser surface treatment device 5 are respectively fixed on a section B104 and the table top 101 of the rack 1. The transporting device 2 is used for conveying and preliminary positioning of the electric pump 409, the manipulator clamping device 3 is used for grabbing the electric pump 409 from the transporting device 2 and transferring the electric pump 409 to the protective cover mounting device 4, and the protective cover mounting device 4 is used for clamping and fixing the electric pump 409 and automatically completing the picking and screwing mounting of the protective cover. The laser surface treatment device 5 is used for performing laser processing surface treatment on the surface of the fixed electric pump 409, and comprises a laser processing module 507 and an electric pump rotating module 509 for clamping and rotating the electric pump 409. The pushing device 6 is used for removing the processed electric pump. The laser surface treatment device 5 adopts a double-cylinder driving mode to control a laser treatment module 507 to move back and forth so as to realize flexible expansion of a stroke, and the specific structure is that a cylinder A501 and a guide ra