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CN-121988926-A - Intelligent welding system for aluminum alloy automobile frame

CN121988926ACN 121988926 ACN121988926 ACN 121988926ACN-121988926-A

Abstract

The invention provides an intelligent welding system for an aluminum alloy automobile frame, which belongs to the technical field of intelligent welding systems and comprises a welding table, a rectangular frame, two groups of bearing rods, a length adjusting piece, a width adjusting piece, a frame welding piece, a turnover piece and a conveying piece, wherein a working cavity is formed in the top of the welding table, the rectangular frame is rotatably arranged in the working cavity, a complete welding process is formed through matching of the welding table, the rectangular frame, the bearing rods, the adjusting piece, the welding piece, the turnover piece and the conveying piece, the working cavity provides a sealed and stable working space for welding operation, the rectangular frame is rotatably arranged, the turnover piece is matched to realize multi-angle welding positioning of the frame, the problem of single-angle welding dead angle is solved, the two groups of bearing rods and the bearing piece can stably support the frame, the length adjusting piece and the width adjusting piece are respectively matched with frames with different lengths and widths, special tools are not required to be replaced, and the universality of equipment is improved.

Inventors

  • GU XIANHUI
  • ZHOU LING
  • MA YUJUAN
  • LI CHUNYAN
  • ZHANG GUINING

Assignees

  • 重庆市铜梁职业教育中心

Dates

Publication Date
20260508
Application Date
20260312

Claims (10)

  1. 1. An intelligent welding system for an aluminum alloy automotive frame, comprising: a welding table (100), wherein a working cavity (102) is formed at the top of the welding table (100); a rectangular frame (300), the rectangular frame (300) being rotatably arranged in the working chamber (102); The two groups of bearing rods (601), the two groups of bearing rods (601) are respectively arranged in the front inner cavity and the rear inner cavity of the rectangular frame (300), and the two ends of the two groups of bearing rods (601) are respectively and slidably connected with a bearing piece for bearing the aluminum alloy frame; The length adjusting piece is arranged in the middle of each group of bearing rods (601) and is used for driving two groups of bearing pieces on the same bearing rod (601) to move oppositely or reversely along the axial direction of the bearing rod (601) so as to be suitable for aluminum alloy frames with different lengths; The width adjusting piece is arranged on the inner side of one end of the rectangular frame (300) and is used for adjusting the distance between the two groups of bearing rods (601) so as to adapt to aluminum alloy frames with different widths; The frame welding parts are provided with two groups and are respectively positioned at the front side and the rear side of the welding table (100) and are used for carrying out welding operation on the aluminum alloy frame fixed on the supporting part; The turnover piece is arranged on one side of the welding table (100) and is used for driving the rectangular frame (300) to rotate around a horizontal shaft in the working cavity (102) so as to realize multi-angle welding and positioning of the aluminum alloy frame; The conveying piece is arranged at the bottom of the working cavity (102) and is used for automatically conveying the welded aluminum alloy frame to an external station.
  2. 2. The intelligent welding system of the aluminum alloy automobile frame according to claim 1, wherein the bearing parts comprise bearing brackets (600) respectively sleeved at two ends of each group of bearing rods (601) in a sliding manner, each group of bearing brackets (600) are arranged in an L shape, a plurality of groups of bearing plates (800) for bearing the aluminum alloy automobile frame are arranged on the inner side of each group of bearing brackets (600), and the top of each group of bearing plates (800) is connected with a positioning part for clamping the aluminum alloy automobile frame in a sliding manner; The length adjusting piece comprises two groups of fixing rings (702) fixedly sleeved on the middle of each group of bearing rods (601), the bottoms of the two groups of fixing rings (702) on the same side are fixedly connected with mounting rings (701) respectively, a double-shaft motor (700) is fixedly installed between the two groups of mounting rings (701) on the same side, two groups of output ends of each double-shaft motor (700) are respectively connected with a screw rod (703) in a key manner, the outer peripheral surface of each screw rod (703) is respectively connected with an inner threaded pipe (704) in a threaded manner, and the top of each inner threaded pipe (704) is respectively fixedly connected with the bottom of a corresponding side bearing bracket (600); The upper parts of the right sides of the two groups of bearing brackets (600) positioned on the left side are fixedly connected with second ranging sensors (614), and the detection ends of each group of the second ranging sensors (614) are respectively aligned with the surfaces of the corresponding side bearing brackets (600) and are used for detecting the distance between the two groups of bearing brackets (600) on the same bearing rod (601) so as to be matched with aluminum alloy frames with different lengths; The width adjusting piece comprises rectangular grooves (611) which are formed in the front side and the rear side of two ends of a rectangular frame (300), two groups of bearing rods (601) extend to the interiors of corresponding side rectangular grooves (611) respectively, the end parts of the bearing rods (601) in the two groups of left rectangular grooves (611) are connected with nut seats (602) respectively, bearing grooves (605) are formed in the left side of the rectangular frame (300), a second bevel gear (607) is rotationally connected to the upper part of the bearing grooves (605), first bevel gears (604) are meshed with the bottoms of the front side and the rear side of the second bevel gear (607), second lead screws (603) are fixedly connected to the outsides of the two groups of first bevel gears (604), the outer side end parts of the two groups of the second lead screws (603) extend into the rectangular grooves (611) respectively and are connected with corresponding side nut seats (602) in a threaded mode, a second driving motor (606) is fixedly connected to the inner wall of the left upper side of the rectangular frame (300), and the output shaft (606) extends downwards to the second bevel gear (605) and is connected with a second shaft (605) in a bearing mode; Guide rods (612) are fixedly connected inside the two groups of rectangular grooves (611) on the right side respectively, guide sleeves (613) are sleeved on the outer peripheral surfaces of the two groups of guide rods (612) in a sliding mode respectively, and the surfaces of the two groups of guide sleeves (613) are connected with the end portions of the corresponding side bearing rods (601) respectively; mounting holes (610) are formed in the front side and the rear side of the two ends of the rectangular frame (300), the inner cavities of each group of the mounting holes (610) are respectively communicated with the inner portions of corresponding side rectangular grooves (611), fixing blocks (609) are fixedly connected to the inner portions of the mounting holes (610), first distance measuring sensors (608) are fixedly connected to the end portions of the fixing blocks (609), the detection ends of the first distance measuring sensors (608) are respectively aligned with the surfaces of corresponding side nut seats (602), and the distance between two groups of bearing rods (601) is detected, so that aluminum alloy frames with different widths are adapted.
  3. 3. The intelligent welding system of an aluminum alloy automobile frame according to claim 2, wherein the frame welding parts comprise support brackets (403) which are respectively arranged on the front side and the rear side of the welding table (100), the top of each group of support brackets (403) is respectively fixedly connected with a welding robot (400), the peripheral surface of the welding end of each group of welding robots (400) is respectively fixedly connected with a mounting sleeve (408), the surface of each group of mounting sleeves (408) is respectively fixedly connected with an extension plate (409), the surface of each group of extension plates (409) is respectively fixedly connected with a visual sensor for monitoring the quality of a welding line and a temperature sensor for monitoring the temperature of the welding line, and the front side and the rear side of the welding table (100) are respectively provided with a moving part for moving the corresponding side support bracket (403).
  4. 4. The intelligent welding system for the aluminum alloy automobile frame according to claim 3, wherein the moving part comprises limiting grooves (407) which are respectively formed in the front side surface and the rear side surface of the welding table (100) and are arranged along the length of the welding table (100), first lead screws (406) are respectively connected in a rotating mode in the limiting grooves (407), nut seats (404) are respectively connected to the outer peripheral surfaces of the first lead screws (406) in a threaded mode, the end portions of the nut seats (404) are respectively and fixedly connected with corresponding side support brackets (403), rotating motors (402) are respectively and fixedly connected to the front side and the rear side of one end of the welding table (100), and output shafts of the two groups of rotating motors (402) are respectively extended into the corresponding side limiting grooves (407) and are connected with end portions of the corresponding side first lead screws (406) in a key mode.
  5. 5. The intelligent welding system of an aluminum alloy automobile frame according to claim 1, wherein the turnover piece comprises a first driving motor (101) fixedly installed at one end of a welding table (100), an output shaft of the first driving motor (101) rotates to penetrate through the welding table (100) and is fixedly connected with the end of a rectangular frame (300), and an angle monitoring piece for monitoring the turnover angle of the rectangular frame (300) is arranged at one end of the rectangular frame (300); one end of the rectangular frame (300) is fixedly connected with a guide ring (105) respectively, and the guide ring (105) is rotatably connected to the inner wall of the welding table (100).
  6. 6. The intelligent welding system for the aluminum alloy automobile frame according to claim 5, wherein the angle monitoring piece comprises permanent magnets (106) which are respectively embedded in an upper portion and a lower portion of one end of the rectangular frame (300), one end of the welding table (100) is provided with a Hall sensor (104) which is arranged at the lower portion of the first driving motor (101), and the detection end of the Hall sensor (104) penetrates through the welding table (100) and is used for monitoring the permanent magnets (106).
  7. 7. The intelligent welding system of the aluminum alloy automobile frame according to claim 1, wherein the conveying member comprises a conveying belt (501) arranged at the lower part of the working cavity (102), a discharge hole (103) is formed in the lower part of one side of the welding table (100) and located at the corresponding position of the output end of the conveying belt (501), an upward pushing member for pushing the conveying belt (501) upwards is arranged at the bottom of the welding table (100), the lifting timing of the upward pushing member is linked with the overturning action of the rectangular frame (300), and after the welding is completed and the rectangular frame (300) is rotated out of the working cavity (102), the upward pushing member lifts the conveying belt (501) to receive materials and convey the materials to the discharge hole (103).
  8. 8. The intelligent welding system of an aluminum alloy automobile frame according to claim 7, wherein the pushing-up part comprises a bearing frame (502) arranged at the bottom of the welding table (100), four corner tops of the bearing frame (502) are respectively and fixedly connected with pushing-up plates (500), upper ends of each group of the pushing-up plates (500) respectively extend upwards into the working cavity (102) and are fixedly connected to the bottom of the conveying belt (501), an electric pushing-up push rod (503) is fixedly connected to the bottom of the welding table (100), and telescopic ends of the electric pushing-up push rods (503) are fixedly connected to the top of the bearing frame (502).
  9. 9. The intelligent welding system of the aluminum alloy automobile frame according to claim 2, wherein the positioning piece comprises guide holes (801) which are formed in the top of each group of bearing plates (800) and are arranged along the length of the bearing plates (800), the inner cavity of each group of guide holes (801) is slidably connected with pushing blocks (802), the top of each group of pushing blocks (802) is fixedly connected with bearing seats (804) respectively, the inner sides of each group of bearing seats (804) are fixedly connected with clamping blocks (807) respectively, the outer side end parts of each group of bearing plates (800) are fixedly connected with first electric pushing rods (803) respectively, and the telescopic ends of each group of first electric pushing rods (803) extend into corresponding side guide holes (801) respectively and are fixedly connected with corresponding side pushing blocks (802); Monitoring holes (808) are formed in the outer parts of the bearing seats (804) and the clamping blocks (807) in each group, an inner threaded ring (805) is fixedly connected to the outer side of each bearing seat (804) and located on the outer peripheral surface of the corresponding side monitoring hole (808), pressure sensors (806) are respectively connected to the inner parts of the inner threaded rings (805) in a threaded mode, and detection ends of the pressure sensors (806) in each group are located in the monitoring holes (808) in the corresponding side clamping blocks (807).
  10. 10. The intelligent welding system of an aluminum alloy automobile frame according to claim 9, further comprising a controller (200) and an operation screen (201) fixedly mounted on one end surface of the welding table (100), wherein a signal output end of the operation screen (201) is electrically connected to a signal input end of the controller (200) through a wire, and signal output ends of the first ranging sensor (608), the second ranging sensor (614), the visual sensor, the temperature sensor, the hall sensor (104) and the pressure sensor (806) are electrically connected with a signal input end of the controller (200) through wires, and the first driving motor (101), the second driving motor (606), the rotating motor (402), the push-up electric push rod (503) and the first electric push rod (803) are controlled by the controller (200).

Description

Intelligent welding system for aluminum alloy automobile frame Technical Field The invention relates to the technical field of intelligent welding systems, in particular to an intelligent welding system for an aluminum alloy automobile frame. Background Under the development trend of light weight of automobiles, aluminum alloy has become a key material for manufacturing white automobile bodies, chassis and frames due to high specific strength, good corrosion resistance and recyclability. Welding is a core connection process in the manufacture of aluminum alloy frames, and the quality of the welding is directly related to the structural strength, safety and fatigue life of the frames. At present, china patent with publication number CN118123282B discloses an automobile aluminum alloy frame welding device and a use method thereof. The welding equipment for the automobile aluminum alloy frame comprises a welding machine assembly, a pretreatment assembly, an air pipe fitting, a control box assembly and a fixing assembly, wherein the welding machine assembly comprises a fixing section, a rotating shaft piece and a welding piece which are sequentially connected, and the middle part of the air pipe fitting is wound at the lower end of the welding piece. The welding machine component is used for welding the aluminum alloy frame, the rotating shaft component is used for moving the welding piece, the welding piece can weld the aluminum alloy frame, the pretreatment component can conduct surface treatment on the welding seam before welding the aluminum alloy frame, surface oxidation of the welding seam is prevented, poor welding seam is further caused, the chemical components of a welding area can be stabilized through the air pipe component, oxidation of the welding seam is prevented, the welding seam can be heated after welding, heat loss of the welding seam is relieved, the control box component is used for providing protection gas and a power supply, and the aluminum alloy frame can be fixed by the fixing component. The automobile aluminum alloy frame welding equipment and the application method thereof have some problems in actual use, the structural design of the fixing component is too simple, the fixing of the automobile aluminum alloy frame with single specification can be realized, a flexible adjusting mechanism is lacked, the aluminum alloy frames with different lengths and widths can not be adjusted in an adapting way, and special fixing tools are required to be replaced frequently aiming at frames with different models in actual production, so that the operation is complicated, the time and labor are wasted, the tool cost is greatly increased, the equipment universality is extremely poor, and the batch production efficiency is severely restricted; secondly, there is obvious limitation in welding angle adjustment, the welding position is adjusted only through the moving welding piece of the rotating shaft piece, a turnover mechanism capable of driving the aluminum alloy frame to turn over is not arranged, multi-angle turning positioning of the frame itself cannot be achieved, welding operation can be carried out only under a single angle, a large number of welding dead angles exist, incomplete welding coverage of hidden parts or complex welding seams of the frame is easy to cause incomplete welding seams, welding defects and other problems, and the actual requirements of high-precision welding of the aluminum alloy frame are difficult to meet. Disclosure of Invention The invention aims to solve the problems in the background art, and provides an intelligent welding system for an aluminum alloy automobile frame. The specific technical scheme is as follows: The intelligent welding system for the aluminum alloy automobile frame comprises a welding table, a rectangular frame, two groups of bearing rods, a length adjusting piece, a width adjusting piece, an aluminum alloy frame welding piece, a overturning piece and an aluminum alloy conveying device, wherein a working cavity is formed in the top of the welding table, the rectangular frame is rotatably arranged in the working cavity, the two groups of bearing rods are respectively arranged in front and rear inner cavities of the rectangular frame, two ends of the two groups of bearing rods are respectively connected with bearing pieces for bearing the aluminum alloy frame in a sliding mode, the length adjusting piece is arranged in the middle of each group of bearing rods and used for driving the two groups of bearing pieces on the same bearing rod to move relatively or oppositely along the axial direction of the bearing rod so as to adapt to aluminum alloy frames with different lengths, the width adjusting piece is arranged at the inner side of one end of the rectangular frame and used for adjusting the distance between the two groups of bearing rods so as to adapt to the aluminum alloy frames with different widths, the frame welding piece is provided with two