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CN-121988883-A - Double-head quasi-synchronous laser welding equipment

CN121988883ACN 121988883 ACN121988883 ACN 121988883ACN-121988883-A

Abstract

The invention belongs to the field of galvanometer laser welding, in particular to double-head quasi-synchronous laser welding equipment which comprises a frame and a displacement mechanism arranged at the top, wherein the displacement mechanism is used for adjusting different positions to weld workpieces, the welding mechanism is arranged on the displacement mechanism and used for welding the workpieces, a first processing mechanism is arranged on the welding mechanism and used for blocking generated scraps during welding and simultaneously cooling the edges and the front of a galvanometer main body, gas seal protection and rotary heat dissipation of the first processing mechanism are used for intercepting welding scraps and dust, heat accumulation at the outer edge of the galvanometer main body is rapidly conducted, the adhesion of impurities and the thermal deformation of lenses are avoided, and a second processing mechanism is used for realizing the removal of harmful substances and the impact cooling of the bottom surface of the galvanometer through the purification, refrigeration and recovery of hot flue gas, so that the environment protection of an operation is guaranteed, a heat dissipation system is formed with the first processing mechanism, the thermal lens effect is effectively inhibited, and the service period of the galvanometer and a core component is remarkably prolonged.

Inventors

  • PAN YU
  • CHEN JINSHENG

Assignees

  • 上海观邑机电有限公司

Dates

Publication Date
20260508
Application Date
20260403

Claims (9)

  1. 1. Double-end quasi-synchronous laser welding equipment, its characterized in that includes: the welding machine comprises a frame (100) and a top-mounted displacement mechanism (200), wherein the displacement mechanism (200) is used for adjusting different positions to weld workpieces; a welding mechanism (300) mounted on the displacement mechanism (200) for performing a welding operation on the workpiece; A first treatment mechanism (400) which is installed on the welding mechanism (300) and is used for blocking generated scraps during welding and simultaneously carrying out cooling treatment on the edge and the front surface of the vibrating mirror main body (340); A second treatment mechanism (500) which is installed on the welding mechanism (300) and is used for absorbing and purifying the generated hot smoke and converting the hot smoke into cold air to cool the bottom surface of the vibrating mirror main body (340) during welding; The second treatment mechanism (500) comprises two sleeves (510), spiral conveying sheets (520) and an activated carbon adsorption column (530), a plurality of refrigerating sheets (550) are fixedly connected to the spiral conveying sheets (520), the angles of the upper ends of the spiral conveying sheets (520) are larger than those of the lower ends, a filter screen (540) is fixedly connected to the bottoms of the sleeves (510), a plurality of spiral grooves (560) are formed in the inner walls of the sleeves (510), hot flue gas generated by welding upwards drifts, impurities are primarily filtered into the sleeves (510) through the filter screen (540) of the filter screen, vortex is formed by upwards drifting through the spiral grooves (560) when entering, the vortex is formed, then the spiral conveying sheets (520) with different angles are rapidly impacted and conveyed to the uppermost part of the inner cavity of the sleeve (510), the plurality of refrigerating sheets (550) and the activated carbon adsorption column (530) convert the hot flue gas into purified cooling gas, and finally the bottom surface of the vibration-absorbing mirror main body (340) is discharged from the sleeve (510) to form impact cooling.
  2. 2. The double-head quasi-synchronous laser welding equipment of claim 1, wherein the spiral conveying sheet (520) is fixedly connected with the inner wall of the sleeve (510), the activated carbon adsorption columns (530) are fixedly connected with the inner cavity of the spiral conveying sheet (520), the two sleeve (510) and the activated carbon adsorption columns (530) are made transparent, the bottoms of the two filter screens (540) are fixedly connected with the gas collecting covers (570), the tops of the two sleeve (510) are respectively provided with the connecting ring (580), and the connecting rings (580) are arranged in a hollow mode.
  3. 3. The dual-head quasi-synchronous laser welding apparatus as set forth in claim 2, wherein the two connecting rings (580) and the top of the sleeve (510) are provided with vent holes (590) in a penetrating manner, and the vent holes (590) are used for directly contacting with the bottom surface of the vibrating mirror main body (340) to form impact when the cooling gas converted into purified cooling gas is discharged from the sleeve (510), so as to avoid bad cooling effect caused by soft contact.
  4. 4. The double-head quasi-synchronous laser welding equipment according to claim 3, wherein the displacement mechanism (200) comprises a vertical linear module (210) fixedly connected to the top of the frame (100), a transverse linear module (220) is arranged on the vertical linear module (210), a fixed frame (230) is arranged on the transverse linear module (220), a rotating motor (240) is fixedly connected to the top of the fixed frame (230), and a disc (250) is sleeved at the output end of the rotating motor (240) through a coupler.
  5. 5. The double-head quasi-synchronous laser welding equipment of claim 4, wherein mounting grooves (260) are formed in two sides of the top of the disc (250), hollow air inlet sheets (270) are fixedly connected to the inner cavities of the mounting grooves (260), the hollow air inlet sheets (270) are driven to rotate by a rotating motor (240) through the disc (250), wind power is generated when the hollow air inlet sheets (270) rotate, the hollow air inlet sheets enter the mounting grooves (260) and are sprayed downwards to form vortex wind to spray and sweep the upper part of the vibrating mirror main body (340), and an air curtain from top to bottom is formed to clean and cool the vibrating mirror main body (340).
  6. 6. The double-head quasi-synchronous laser welding equipment according to claim 5, wherein the hollow air inlet sheets (270) are arranged in two groups and four groups, and the hollow air inlet sheets (270) are arranged in four groups, so that an annular air curtain is formed when the hollow air inlet sheets (270) are rotated to be discharged and purged, chips and impurities can be prevented from falling onto the vibrating mirror main body (340), and impurities adhered on the vibrating mirror main body (340) can be cleaned.
  7. 7. The dual-head quasi-synchronous laser welding device of claim 1, wherein the welding mechanism (300) comprises two laser emitting parts (310), fixing parts (320), a shell (330) and a vibrating mirror main body (340), the two laser emitting parts (310) are fixedly connected to two sides of the bottom of the disc (250), the bottoms of the two fixing parts (320) are fixedly connected with corresponding connecting rings (580), the two fixing parts (320) are fixedly connected to two sides of the disc (250), the two shells (330) are fixedly connected to one side of the fixing parts (320), and inner cavities of the shells (330) are fixedly connected with the vibrating mirror main body (340).
  8. 8. The double-head quasi-synchronous laser welding equipment according to claim 1, wherein the first processing mechanism (400) comprises two heat conducting rings (410) and a connecting sleeve (420), the two heat conducting rings (410) are sleeved on the outer ring of the corresponding shell (330), the connecting sleeve (420) is fixedly connected with the top of the heat conducting rings (410), the periphery of the outer ring of the heat conducting rings (410) is rotationally connected with a heat dissipation ring (421) through a bearing, one side of the heat dissipation ring (421) is fixedly connected with a plurality of heat dissipation fins (430), four slotted holes (440) for connecting an external pipe are formed in the top of the connecting sleeve (420), annular cavities (450) are formed in inner cavities of the connecting sleeve (420), a plurality of inclined grooves (460) are formed in the inner walls of the annular cavities (450), the connecting sleeve (420) is connected with the existing protective gas (such as nitrogen) of the equipment through the slotted holes (440) to form uniform low-pressure air flow, and meanwhile, air flows through the inclined grooves (460) to blow air to the vibration mirror main body (340), residual dust and micro-dust are prevented from entering the outside.
  9. 9. The dual-head quasi-synchronous laser welding equipment of claim 8, wherein the inner walls of the annular cavity (450) are staggered with the inclined grooves (460) to form air outlets (470) corresponding to the heat dissipation rings (421), and the air outlets (470) are used for blowing partial wind entering the annular cavity (450) to the heat dissipation rings (421) to drive the heat dissipation rings (421) and the heat dissipation fins (430) to rotate, so that the heat dissipation fins (430) are in rotary contact with air, and heat of the outer edge of the vibrating mirror main body (340) guided by the heat conduction rings (410) is rapidly discharged and dissipated.

Description

Double-head quasi-synchronous laser welding equipment Technical Field The invention relates to the field of galvanometer laser welding, in particular to double-head quasi-synchronous laser welding equipment. Background The vibrating mirror scanning laser welding machine is laser welding equipment adopting a high-precision optical vibrating mirror scanning mode, is mainly applied to high-efficiency laser spot welding or seal welding of electronic products such as mobile phone shielding covers, metal mobile phone shells, microelectronic elements and the like, and is expanded to the fields of new energy batteries, chips, aerospace components and the like. The existing equipment has the defects that the heat dissipation mode of the existing equipment is single air cooling or water cooling, the temperature of the local area of the vibrating mirror is reduced, the heat dissipation uniformity is poor, the full-dimension heat dissipation of the front face, the edge and the bottom face of the vibrating mirror cannot be realized, the temperature of the vibrating mirror is uneven, the thermal lens effect is caused, the laser focusing point is deviated, the welding joint strength is inconsistent, the welding seam is poor in forming, and the welding quality requirement of precise parts is difficult to meet. Disclosure of Invention In order to make up the defects of the prior art, the heat energy source in the hot flue gas cannot be recovered to radiate the vibrating mirror, so that the heat energy source is wasted and the problem of the increase of the ambient temperature of the equipment is aggravated. The technical scheme adopted by the invention for solving the technical problems is that the double-head quasi-synchronous laser welding equipment comprises: The device comprises a frame and a displacement mechanism arranged at the top, wherein the displacement mechanism is used for adjusting different positions to weld workpieces; A welding mechanism mounted on the displacing mechanism for performing a welding operation on the workpiece; the first processing mechanism is arranged on the welding mechanism and used for blocking generated scraps during welding and simultaneously cooling the edge and the front surface of the vibrating mirror main body; the second treatment mechanism is arranged on the welding mechanism and is used for absorbing and purifying generated hot smoke and converting the hot smoke into cold air to cool the bottom surface of the vibrating mirror main body during welding; The second treatment mechanism comprises two sleeves, spiral conveying sheets and an activated carbon adsorption column, wherein a plurality of refrigerating sheets are fixedly connected to the spiral conveying sheets, the angles of the upper ends of the spiral conveying sheets are larger than those of the lower ends of the spiral conveying sheets, the bottoms of the sleeves are fixedly connected with filter screens, the inner walls of the sleeves are provided with a plurality of spiral grooves, hot smoke generated by welding upwards floats and enters the sleeves through the filter screens of the sleeve, and the hot smoke upwards floats to form vortex flow through the spiral grooves when entering, the hot smoke is quickly impacted and conveyed to the uppermost part of an inner cavity of the sleeve along the spiral conveying sheets with different angles after forming vortex flow, the hot smoke is converted into purified cooling gas by the aid of the plurality of refrigerating sheets and the activated carbon adsorption column in the conveying process, and finally the purified cooling gas is discharged from the inner side of the sleeve to form impact cooling on the bottom surface of the main body of the vibrating mirror. Preferably, the screw conveying piece is fixedly connected with the inner wall of the sleeve, the activated carbon adsorption column is fixedly connected with the inner cavity of the screw conveying piece, the two screw conveying pieces and the activated carbon adsorption column are made transparent, the two screw conveying pieces are fixedly connected with the gas collecting hoods at the bottoms of the filter screens, the two screw conveying pieces and the inner wall of the sleeve are respectively provided with a connecting ring, and the connecting rings are hollow. Preferably, two the ventholes have all been offered all link up around go up with sleeve top, the venthole is used for directly forming the impact with vibrating mirror main part bottom surface contact when discharging from the sleeve with the cooling gas that changes into the purification, avoids soft contact to lead to the cooling effect not good. Preferably, the displacement mechanism comprises a vertical linear module fixedly connected to the top of the frame, a transverse linear module is arranged on the vertical linear module, a fixed frame is arranged on the transverse linear module, a rotating motor is fixedly connected to the top of the fixed fram