A radium welding production line and its operation method

Abstract

The invention provides a radium welding production line and an operation method thereof, comprising a feeding line and a return line, wherein both ends of the feeding line and the return line are provided with lifting and transferring mechanisms, the feeding line, the lifting and transferring mechanism and the return line form a cyclic transfer fixture, the fixture comprising an assembly plate and a carrier plate, a material embedding groove is provided on the top surface of the carrier plate, a positioning component is convexly provided around the contour of the material embedding groove, a clamping component is provided in the assembly plate, and an elastic support component is provided in the material embedding groove; at least one accessory assembly station, a code scanning station, at least one radium welding station, a pressure holding station, a solder joint inspection station and a stripping station are arranged from the beginning to the end of the feeding line, the stripping station comprises a stripping frame with a stripping window, a stripping lifter is provided below the stripping window, the stripping lifter lifts and drives the ejecting mechanism, stripping limiters are symmetrically provided on both sides of the stripping frame, a stripping limiter plate is fixedly provided on a telescopic rod facing upward of the stripping limiter, and a stripping buffer column facing the ejecting mechanism is provided on the stripping limiter plate.

Description

Technical Field

[0001] The invention belongs to the field of mechanical technology and relates to a full-automatic assembly welding system, in particular to a radium welding operation line and an operation method thereof. Background Art

[0002] In the field of non-standard automation, laser welding is a very important process. At present, laser welding lines have always been semi-automatic lines, through manual loading, laser welding by laser welding machine, and manual unloading after material return. Based on process requirements, the following problems need to be solved for semi-automatic laser welding lines to become automatic lines:

[0003] 1. Fixture reflow problem. 2. Laser welded parts assembly problem. 3. Stud laser welding problem. Since the stud is relatively small and the number of welds is required, the laser welding automatic line needs to consider the positioning and pressure holding of the stud. 4. Laser welding smoke problem. 5. Material stripping problem.

[0004] The degree of coordination between the laser welding jig and the laser welding product plays a key role in the effect of laser welding. If the laser welding product and the jig do not coordinate well, it will cause cold welding, leaking welding or inaccurate welding points. At present, in the field of laser welding, the development structure of laser welding jigs is single, and a single set of jigs has a single function. It can only realize one process, and several sets of jigs need to cooperate with each other to complete the overall welding process. Especially after laser welding, due to the small gap between the laser welding jig and the product, it is not easy for the product to be removed from the laser welding jig, and the process of removing the material is easy to cause three damages and deformation of the product, which seriously reduces the yield of the product.

[0005] For example, a Chinese patent document has disclosed an automatic assembly line for a vehicle-mounted wireless charger [Chinese Patent No.: CN202110551648.8]. The present invention relates to an automatic assembly line for a vehicle-mounted wireless charger, comprising: a reflow elevator, a dispensing mechanism, a radiator installation device, a pressure-maintaining device, a hot riveting device, a soldering device, a screw locking device, and a testing mechanism arranged in sequence along the extension direction of the reflow elevator. The reflow elevator is used to transfer and reflow the production carrier of the vehicle-mounted wireless charger, the dispensing mechanism is used for the installation and dispensing of coils and magnetic sheets, the radiator installation device is used for the installation of the radiator, the pressure-maintaining device is used for online pressure maintenance of the material, the hot riveting device is used for the hot riveting installation of the filter board, the soldering device is used for soldering the material, the screw locking device is used for the installation of the shell, and the testing mechanism is used for testing the wireless charger. The present invention is provided with a dispensing mechanism, a radiator installation device, a pressure-maintaining device, a hot riveting device, a soldering device, a screw locking device, and a testing mechanism, which can realize the integrated automatic production of the vehicle-mounted wireless charger and improve production efficiency.

[0006] Although the above technical solution has processes such as reflow, pressure holding, and welding, it is specially designed for chargers, which has limitations and cannot be applied to the production of other components. In addition, the above technical solution has a complex structure, increases equipment costs, and has complicated processes, making it difficult to accurately position, resulting in low processing accuracy. Summary of the invention

[0007] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a laser welding production line and its operation method which connects assembly, code scanning, welding, pressure holding, inspection and material removal in an orderly manner through a circulating conveyor line, improves work efficiency and optimizes process effects.

[0008] The purpose of the present invention can be achieved through the following technical solutions: a radium welding production line, comprising a feeding line and a return line arranged in parallel up and down, both ends of the feeding line and the return line are provided with a lifting and transferring mechanism, the feeding line, the lifting and transferring mechanism and the return line are a cyclic transfer jig, the jig comprises an assembly plate and a carrier plate stacked from bottom to top, an embedding groove is arranged on the top surface of the carrier plate, a positioning component is convexly arranged around the contour of the embedding groove, a clamping component is arranged in the assembly plate, and a spring is arranged in the embedding groove support component; at least one accessory assembly station, a code scanning station, at least one radium welding station, a pressure holding station, a solder joint inspection station and a stripping station are arranged on the feeding line from the starting end to the tail end; the stripping station includes a stripping rack with a stripping window, a stripping lifter is installed under the stripping window, the stripping lifter lifts and drives the ejecting mechanism, stripping limiters are symmetrically arranged on both sides of the stripping rack, a stripping limit plate is fixed on the upward telescopic rod of the stripping limiter, and a stripping buffer column facing the ejecting mechanism is arranged on the stripping limit plate.

[0009] In the above-mentioned laser welding production line, the feeding line / the return line includes a machine base located at both ends, the machine bases at both ends are fixedly connected by a frame, a group of transmission pulleys are hinged on the machine base through a rotating shaft, the outer periphery of the transmission pulleys at both ends is tensioned and sleeved with a transmission belt, the rotating shaft of any group of the transmission pulleys is connected to a transmission motor, and a number of station sensors are evenly arranged on the top surface of the frame.

[0010] In the above-mentioned laser welding operation line, the lifting and transferring mechanism includes a lifter, the upward lifting shaft of the lifter is fixedly connected to the lifting platform, two sets of transfer pulleys are hinged on the lifting platform, the outer periphery of the relatively arranged transfer pulleys is tensioned and sleeved with the transfer belt, the rotating shaft of any set of the transfer pulleys is connected to the transfer motor, and an in-position sensor is arranged on the lifting platform.

[0011] In the above-mentioned laser welding operation line, the accessory assembly station includes an assembly frame with an assembly window, and an assembly lifter is arranged below the assembly window. An assembly material table is fixedly arranged on the upward lifting rod of the assembly lifter, and at least two assembly positioning columns are protruding from the assembly material table. Assembly limiters are symmetrically arranged on both sides of the assembly frame, and an assembly limit plate is fixedly arranged on the upward telescopic rod of the assembly limiter, and an assembly buffer column facing the assembly material table is arranged on the assembly limit plate.

[0012] In the above-mentioned laser welding operation line, the code scanning station includes a code scanning frame with a code scanning window, a translator is installed on the top surface of the code scanning frame, a code scanning machine is fixed on the telescopic end of the translator, and the scanning window of the code scanning machine is downwardly aligned with the code scanning window, and a code scanning lifter is provided below the code scanning window on the code scanning frame, a code scanning material fixing table is fixed on the upward lifting rod of the code scanning lifter, at least two code scanning positioning columns are protruding from the code scanning material fixing table, code scanning limiters are symmetrically provided on both sides of the code scanning frame, a code scanning limit plate is fixed on the upward telescopic rod of the code scanning limiter, and a code scanning buffer column facing the code scanning material fixing table is provided on the code scanning limit plate.

[0013] In the above-mentioned radium welding operation line, the radium welding station includes a radium welding frame with a radium welding window, a radium welding cover is provided on the top surface of the radium welding window, at least two fixed blocks are fixedly provided around the periphery of the radium welding window, the fixed blocks are pressed against the side walls of the radium welding cover to form a plane positioning, a radium welding groove is correspondingly opened on the radium welding cover, a three-dimensional moving mechanism is installed on the top surface of the radium welding frame, and the three-dimensional moving mechanism drives and connects a radium welding gun; the radium welding frame is provided with a radium welding lifter below the radium welding window, a radium welding fixing table is fixed on the upward lifting rod of the radium welding lifter, at least two radium welding positioning columns are protruding from the radium welding fixing table, radium welding limiters are symmetrically provided on both sides of the radium welding frame, a radium welding limit plate is fixed on the upward telescopic rod of the radium welding limiter, and a radium welding buffer column facing the radium welding fixing table is provided on the radium welding limit plate.

[0014] In the above-mentioned radium welding production line, the three-dimensional moving mechanism includes an X-slide electric cylinder, a Y-slide electric cylinder is fixed on the X-slide of the X-slide electric cylinder, a Z-lifting electric cylinder is fixed on the Y-slide of the Y-slide electric cylinder, and the lifting end of the Z-lifting electric cylinder is fixedly connected to the radium welding gun.

[0015] In the above-mentioned radium welding operation line, the pressure-maintaining station includes a pressure-maintaining frame with a pressure-maintaining window, the pressure-maintaining window is covered with a pressure-maintaining plate, a plurality of pressure-maintaining holes are opened on the pressure-maintaining plate, a plurality of pressure-maintaining blocks are pressed on the top surface of the pressure-maintaining plate, and the pressure-maintaining columns of the pressure-maintaining blocks are correspondingly inserted into the pressure-maintaining holes; the pressure-maintaining frame is provided with a pressure-maintaining lifter below the pressure-maintaining window, a pressure-maintaining material-setting platform is fixed on the upward lifting rod of the pressure-maintaining lifter, at least two pressure-maintaining positioning columns are protruding from the pressure-maintaining material-setting platform, pressure-maintaining limiters are symmetrically arranged on both sides of the pressure-maintaining frame, a pressure-maintaining limit plate is fixed on the upward telescopic rod of the pressure-maintaining limiter, and a pressure-maintaining buffer column facing the pressure-maintaining material-setting platform is arranged on the pressure-maintaining limit plate.

[0016] In the above-mentioned radium welding operation line, the welding point inspection station includes an inspection frame with an inspection window, and an inspection lifter is arranged below the inspection window. An inspection and material setting table is fixed on the upward lifting rod of the inspection lifter, and at least two inspection positioning columns are protruding from the inspection and material setting table. Inspection limiters are symmetrically arranged on both sides of the inspection frame, and an inspection limit plate is fixed on the upward telescopic rod of the inspection limiter, and an inspection buffer column facing the inspection and material setting table is arranged on the inspection limit plate.

[0017] In the above-mentioned radium welding operation line, the ejection mechanism includes a ejection plate fixedly connected to the top of the telescopic rod of the stripping lifter, a plurality of ejection pins and ejection rods are erected on the ejection plate, a plurality of round holes and flat holes are correspondingly opened on the jig, the ejection pins are aligned and connected with the round holes, and the ejection rods are aligned and connected with the flat holes.

[0018] In the above-mentioned radium welding production line, the positioning assembly includes a plurality of limit blocks in the form of square cones and a plurality of T-shaped positioning blocks, the clamping assembly includes a clamping frame slidably installed in the assembly plate, at least one clamping spring is clamped between the clamping frame and the assembly plate, and a plurality of push rods of the clamping frame form a one-to-one confrontation with a plurality of the positioning blocks.

[0019] In the above-mentioned laser welding production line, a plurality of mounting holes are provided on the top surface of the assembly plate, and the elastic support assembly includes a support spring and a support column installed from bottom to top in the mounting holes, and the support column extends into the embedding groove to form lifting and sliding.

[0020] An operation method of a radium welding operation line, characterized in that the following are arranged in sequence from the beginning to the end of the feeding line: 1. accessory assembly station, 2. accessory assembly station, 3. code scanning station, 4. radium welding station, 5. accessory assembly station, 6. accessory assembly station, 7. pressure holding station, 8. radium welding station, 9. radium welding station, 10. solder joint inspection station, 11. stripping station, and the operation method comprises the following steps:

[0021] 1. The lifter drives the lifting platform to a low position. The return line places the empty jig on the transfer platform. The in-place sensor senses the empty jig. The lifter lifts the lifting platform to a high position, starts the transfer motor to drive the transfer belt to transport the empty jig to the feeding line.

[0022] 2. The station sensor senses that the empty jig enters the first accessory assembly station. First, the assembly limiters on both sides lift the assembly limit plates, and the empty jig is blocked and positioned by the assembly buffer column. Then, the assembly material table is raised by the assembly lifter, so that the assembly positioning column corresponds to the positioning hole on the empty jig. The assembly lifter continues to rise, so that the empty jig is separated from the transmission belt and pressed under the assembly window. A T-shaped piece is placed to form a positioning. The assembly lifter descends to re-place the jig with material on the feeding line, and the assembly limit plate descends to release the jig with material.

[0023] 3. The station sensor senses that the unloaded jig enters the second accessory assembly station. First, the assembly limiters on both sides lift the assembly limit plates, and the jig with materials is blocked and positioned by the assembly buffer column. Then, the assembly material table is raised by the assembly lifter, so that the assembly positioning column corresponds to the positioning hole on the jig with materials. The assembly lifter continues to rise, so that the jig with materials is separated from the transmission belt and pressed under the assembly window. The workpiece is placed to form a position. The assembly lifter descends to re-place the jig with materials on the feeding line, and the assembly limit plate descends to release the jig with materials.

[0024] 4. The station sensor senses that the material jig enters the code scanning station. First, the code scanning limiters on both sides lift the code scanning limit plate, and the code scanning buffer column blocks and positions the material jig. Then, the code scanning lifter raises the code scanning material table so that the code scanning positioning column corresponds to the positioning hole on the material jig. The code scanning lifter continues to rise, so that the material jig is separated from the transmission belt and pressed under the code scanning window. The translator pushes the code scanner, and the code scanner is turned on to scan and enter the product. The code scanning lifter descends to re-place the material jig on the feeding line, and the scanning limit plate descends to release the material jig.

[0025] 5. The station sensor senses that the jig with material enters the first laser welding station. First, the laser welding limiters on both sides lift the laser welding limit plates, and the laser welding buffer columns are used to block and position the jig with material. Then, the laser welding lifter raises the laser welding fixed material table, so that the laser welding positioning columns correspond to the positioning holes on the jig with material. The laser welding lifter continues to rise, so that the jig with material is separated from the transmission belt and pressed under the laser welding window. The welding parts on the product are exposed by the laser welding groove. Move the laser welding gun to the alignment position to weld the T-shaped parts and the I-shaped parts. The laser welding lifter descends to place the jig with material on the feeding line again, and the laser welding limit plate descends to release the jig with material.

[0026] 6. The station sensor senses that the empty jig enters the third accessory assembly station. First, the assembly limiters on both sides lift the assembly limit plates, and the empty jig is blocked and positioned by the assembly buffer column. Then, the assembly material table is raised by the assembly lifter, so that the assembly positioning column corresponds to the positioning hole on the empty jig. The assembly lifter continues to rise, so that the empty jig is separated from the transmission belt and pressed under the assembly window. A total of 8 studs are installed at the four corners. The assembly lifter descends to re-place the jig with material on the feeding line, and the assembly limit plate descends to release the jig with material.

[0027] 7. The station sensor senses that the empty jig enters the fourth accessory assembly station. First, the assembly limiters on both sides lift the assembly limit plates, and the empty jig is blocked and positioned by the assembly buffer column. Then, the assembly material table is raised by the assembly lifter, so that the assembly positioning column corresponds to the positioning hole on the empty jig. The assembly lifter continues to rise, so that the empty jig is separated from the transmission belt and pressed under the assembly window. The two studs in the middle are installed. The assembly lifter descends to re-place the jig with material on the feeding line, and the assembly limit plate descends to release the jig with material.

[0028] 8. The station sensor senses that the material jig enters the pressure-holding station. First, the pressure-holding limiters on both sides lift the pressure-holding limit plate, and the material jig is blocked and positioned by the pressure-holding buffer column. Then, the pressure-holding fixed material table is raised by the pressure-holding lifter, so that the pressure-holding positioning column corresponds to the positioning hole on the material jig. The pressure-holding lifter continues to rise, so that the material jig is separated from the transmission belt and pressed under the pressure-holding plate in the pressure-holding window. The 10 studs assembled on the product are aligned with the 10 pressure-holding holes one by one, and the pressure-holding block is placed so that the pressure-holding columns are inserted into the pressure-holding holes one by one and pressed on the studs for pressure-holding operation. The pressure-holding lifter descends to place the material jig back on the feeding line, and the pressure-holding limit plate descends to release the material jig.

[0029] 9. The station sensor senses that the jig with material enters the second laser welding station. First, the laser welding limiters on both sides lift the laser welding limit plates, and the laser welding buffer columns are used to block and position the jig with material. Then, the laser welding lifter raises the laser welding fixed material table, so that the laser welding positioning columns correspond to the positioning holes on the jig with material. The laser welding lifter continues to rise, so that the jig with material is separated from the transmission belt and pressed under the laser welding window. The welding parts on the product are exposed by the laser welding groove. Move the laser welding gun to the alignment position to weld the four studs at the positioning point. The laser welding lifter descends to place the jig with material on the feeding line again, and the laser welding limit plate descends to release the jig with material.

[0030] 10. The station sensor senses that the jig with material enters the third radium welding station. First, the radium welding limiters on both sides lift the radium welding limit plates, and the jig with material is blocked and positioned by the radium welding buffer column. Then, the radium welding fixed material table is raised by the radium welding lifter, so that the radium welding positioning column corresponds to the positioning hole on the jig with material. The radium welding lifter continues to rise, so that the jig with material is separated from the transmission belt and pressed under the radium welding window. The welding part on the product is exposed by the radium welding groove. Move the radium welding gun to the alignment position to weld the remaining 6 studs. The radium welding lifter descends to place the jig with material on the feeding line again, and the radium welding limit plate descends to release the jig with material.

[0031] 11. The station sensor senses that the material jig enters the solder joint inspection station. First, the inspection limiters on both sides lift the inspection limit plate, and the material jig is blocked and positioned by the inspection buffer column. Then, the inspection lifter is raised to check the material setting table, so that the inspection positioning column corresponds to the positioning hole on the material jig. The inspection lifter continues to rise, so that the material jig is separated from the transmission belt and pressed under the inspection window. Each solder joint on the product is inspected. The inspection lifter is lowered to re-place the material jig on the feeding line, and the inspection limit plate is lowered to release the material jig.

[0032] 12. When the station sensor senses that the material-carrying jig enters the stripping station, the stripping limiters on both sides first lift the stripping limit plates, and the material-carrying jig is blocked and positioned by the stripping buffer column. Then, the stripping lifter drives the ejector plate and the ejector pins and ejector rods thereon to rise and extend into the inserting slot. The ejector pins correspondingly lift the studs of the workpieces, thereby realizing the stripping effect on the workpieces. The ejector rods correspondingly lift the T-pieces, thereby realizing the stripping effect on the T-pieces. The stripping lifter descends to place the material-carrying jig on the feeding line again, and the stripping limit plates descend to release the material-carrying jig.

[0033] 13. The lifter lifts the lifting platform to the high position, and the feeding line places the empty jig on the transfer platform. The in-place sensor senses the empty jig, and the lifter lowers the lifting platform to the low position. The transfer motor is started to drive the transfer belt to transport the empty jig to the return line.

[0034] Compared with the prior art, the radium welding production line and its operation method have the following beneficial effects:

[0035] 1. The automatic line fixture reflux method is adopted, and the line fixture is refluxed through the lifting mechanism at both ends of the line body, so as to realize the uninterrupted use of the fixture and improve the utilization efficiency of the fixture and the product processing efficiency.

[0036] 2. The automated radium welding line positions the radium welding jig, and the positioning of the jig ensures the position of the radium welded parts. In addition, an inspection station is added to ensure the assembly of the radium welded parts.

[0037] 3. It is specially designed for lifting and removing products after radium welding. The cylinder corresponding to the welding point is used for lifting, and the edge position corresponding to the sheet is used for lifting, so as to avoid the three damages of the product in the process of removing the material and improve the product yield.

[0038] 4. According to the product combination structure, a combination of elastic support and clamping fixation is adopted accordingly, which can not only achieve a close fit between products, but also form a stable clamping effect and effectively avoid causing three damages to the products. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is the overall structure diagram of the radium welding production line.

[0040] Figure 2 This is the structural diagram of the lifting and transferring mechanism in this radium welding production line.

[0041] Figure 3 This is the structural diagram of the accessory assembly station in this laser welding production line.

[0042] Figure 4 This is the structural diagram of the code scanning station in this laser welding production line.

[0043] Figure 5 This is the structural diagram of the radium welding station in this radium welding production line.

[0044] Figure 6 This is the structural diagram of the pressure-maintaining station in this laser welding production line.

[0045] Figure 7 This is the structural diagram of the solder joint inspection station in this radium welding production line.

[0046] Figure 8 This is the structural diagram of the stripping station in this laser welding production line.

[0047] Fig. 9 This is the internal structure of the stripping station in the laser welding production line. Figure 1 .

[0048] Fig.10 This is the internal structure of the stripping station in the laser welding production line. Figure 2 .

[0049] Fig.11 This is the positioning structure diagram of the product in the stripping station of this laser welding production line.

[0050] In the figure, 1, machine base; 2, frame; 3, station sensor; 4, transmission belt; 5, lifter; 6, lifting platform; 7, transfer belt; 8, assembly frame; 9, assembly lifter; 10, assembly material table; 11, assembly stopper; 12, assembly stopper plate; 13, assembly buffer column; 14, code scanning frame; 15, translator; 16, code scanning machine; 17, code scanning lifter; 18, code scanning material table; 19, code scanning stopper; 20, code scanning stopper plate; 21, code scanning buffer column; 22, radium welding frame; 23, radium welding cover; 24, fixing block; 25, radium welding lifter; 26, radium welding groove; 27, radium welding stopper; 28, radium welding stopper plate; 29, radium welding buffer column; 30, pressure holding frame; 31, pressure holding plate; 32, pressure holding block; 3 3. Pressure-maintaining column; 34. Pressure-maintaining lifter; 35. Pressure-maintaining locking column; 36. Pressure-maintaining limiter; 37. Pressure-maintaining limiter plate; 38. Pressure-maintaining buffer column; 39. Inspection frame; 40. Inspection lifter; 41. Inspection material table; 42. Inspection limiter; 43. Inspection limiter plate; 44. Inspection buffer column; 45. Material stripping frame; 46. Material stripping lifter; 47. Ejection plate; 48. Ejection pin; 49. Ejection rod; 50. Material stripping limiter; 51. Material stripping limiter plate; 52. Material stripping buffer column; 53. Assembly plate; 54. Clamping spring; 55. Clamping frame; 56. Push rod; 57. Support spring; 58. Support column; 59. Loading plate; 60. Limit block; 61. Positioning block; 62. I-shaped part; 63. Stud; 64. T-shaped part. DETAILED DESCRIPTION

[0051] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0052] Embodiment 1

[0053] like Figures 1 to 11 As shown, the radium welding production line includes a feeding line and a return line arranged in parallel above and below. Both ends of the feeding line and the return line are provided with lifting and transferring mechanisms. The feeding line, the lifting and transferring mechanism and the return line are a circular transfer fixture. The fixture includes an assembly plate 53 and a carrier plate 59 stacked from bottom to top. An embedding groove is arranged on the top surface of the carrier plate 59. A positioning component is convexly arranged around the contour of the embedding groove. A clamping component is arranged in the assembly plate 53, and an elastic support component is arranged in the embedding groove. The feeding line is provided from the beginning to the end. At least one accessory assembly station, a code scanning station, at least one radium welding station, a pressure holding station, a solder joint inspection station and a stripping station are arranged. The stripping station includes a stripping frame 45 with a stripping window, a stripping lifter 46 is installed under the stripping window, the stripping lifter 46 lifts and drives the ejecting mechanism, and stripping limiters 50 are symmetrically arranged on both sides of the stripping frame 45. A stripping limit plate 51 is fixed on the upward telescopic rod of the stripping limiter 50, and a stripping buffer column 52 facing the ejecting mechanism is arranged on the stripping limit plate 51.

[0054] The feeding line / returning line includes a machine base 1 located at both ends, which are fixedly connected by a frame 2. A group of transmission pulleys are hinged on the machine base 1 through a rotating shaft. The outer periphery of the transmission pulleys at both ends is tensioned and sleeved with a transmission belt 4. The rotating shaft of any group of transmission pulleys is connected to a transmission motor. A number of station sensors 3 are evenly arranged on the top surface of the frame 2.

[0055] The feeding line or the return line is composed of two parallel transmission belts 4 to form a conveying platform, and the transmission motor provides the transmission belt 4 with the transmission operation power. A number of auxiliary wheels are hinged on the frame 2, and the auxiliary wheels are correspondingly arranged under the transmission belt 4 to support the transmission belt 4 to assist in the operation. The transmission direction of the feeding line is opposite to that of the return line. The jig with material is sent out through the feeding line located on the upper layer, and the transportation position of the jig with material is sensed by the station sensor 3, and the empty jig is sent back through the return line located on the lower layer.

[0056] The lifting and transferring mechanism includes a lifter 5, an upward lifting shaft of the lifter 5 is fixedly connected to a lifting platform 6, two sets of transfer pulleys are hinged on the lifting platform 6, the outer peripheries of the relatively arranged transfer pulleys are tensioned and sleeved with transfer belts 7, the rotating shaft of any set of transfer pulleys is connected to a transfer motor, and an in-position sensor is arranged on the lifting platform 6.

[0057] The lifter 5 is specifically a lifting cylinder, which forms a transfer platform through two parallel transfer belts 7. When the lifter 5 drives the lifting platform 6 to a low position, the return line places the empty jig on the transfer platform, the in-place sensor senses the empty jig, the lifter 5 lifts the lifting platform 6 to a high position, starts the transfer motor to drive the transfer belt 7 to transport the empty jig to the feeding line. On the contrary, the feeding line unloads the jig with material, the in-place sensor senses the jig with material, and sends the empty jig to the return line.

[0058] The accessory assembly station includes an assembly frame 8 with an assembly window, an assembly lifter 9 is arranged below the assembly window, an assembly material table 10 is fixedly arranged on the upward lifting rod of the assembly lifter 9, at least two assembly positioning columns are protruding from the assembly material table 10, assembly limiters 11 are symmetrically arranged on both sides of the assembly frame 8, an assembly limit plate 12 is fixedly arranged on the upward telescopic rod of the assembly limiter 11, and an assembly buffer column 13 facing the assembly material table 10 is arranged on the assembly limit plate 12.

[0059] The assembly lifter 9 and the assembly limiter 11 are both lifting cylinders, and the assembly buffer column 13 is an oil pressure buffer. When the station sensor 3 senses that the material jig enters the accessory assembly station, the assembly limiters 11 on both sides first lift the assembly limit plate 12, and the material jig is blocked and positioned by the assembly buffer column 13, and then the assembly lifter 9 raises the assembly fixed material table 10, so that the assembly positioning column corresponds to the positioning hole on the material jig, and the assembly lifter 9 continues to rise, so that the material jig is separated from the transmission belt 4 and pressed under the assembly window, and small parts are put in one by one for positioning and assembly operations.

[0060] The code scanning station includes a code scanning frame 14 with a code scanning window, a translator 15 is installed on the top surface of the code scanning frame 14, a code scanning machine 16 is fixed on the telescopic end of the translator 15, and the scanning window of the code scanning machine 16 is downwardly aligned with the code scanning window, and a code scanning lifter 17 is arranged below the code scanning window on the code scanning frame 14, a code scanning material fixing platform 18 is fixed on the upward lifting rod of the code scanning lifter 17, and at least two code scanning positioning columns are protruding from the code scanning material fixing platform 18, code scanning limiters 19 are symmetrically arranged on both sides of the code scanning frame 14, a code scanning limit plate 20 is fixed on the upward telescopic rod of the code scanning limiter 19, and a code scanning buffer column 21 facing the code scanning material fixing platform 18 is arranged on the code scanning limit plate 20.

[0061] The code scanning lifter 17 and the code scanning limiter 19 are both lifting cylinders, the translator 15 is a translating cylinder, and the code scanning buffer column 21 is an oil pressure buffer. When the station sensor 3 senses that the material jig enters the code scanning station, the code scanning limiters 19 on both sides first lift the code scanning limit plate 20, and the code scanning buffer column 21 blocks and positions the material jig, and then the code scanning lifter 17 raises the code scanning material table 18, so that the code scanning positioning column corresponds to the positioning hole on the material jig, and the code scanning lifter 17 continues to rise, so that the material jig is separated from the transmission belt 4 and pressed under the code scanning window, and the translator 15 pushes the code scanner 16, and the code scanner 16 is turned on to scan and enter the product.

[0062] The radium welding station includes a radium welding frame 22 with a radium welding window, a radium welding cover 23 is covered on the top surface of the radium welding window, at least two fixed blocks 24 are fixedly arranged around the radium welding window, the fixed blocks 24 are pressed against the side walls of the radium welding cover 23 to form a plane positioning, a radium welding groove 26 is correspondingly opened on the radium welding cover 23, a three-dimensional moving mechanism is installed on the top surface of the radium welding frame 22, and the three-dimensional moving mechanism drives and connects the radium welding gun; the radium welding frame 22 is provided with a radium welding lifter 25 below the radium welding window, a radium welding fixed material platform is fixed on the upward lifting rod of the radium welding lifter 25, at least two radium welding positioning columns are protruded on the radium welding fixed material platform, radium welding limiters 27 are symmetrically arranged on both sides of the radium welding frame 22, a radium welding limit plate 28 is fixed on the upward telescopic rod of the radium welding limiter 27, and a radium welding buffer column 29 facing the radium welding fixed material platform is arranged on the radium welding limit plate 28.

[0063] The laser welding lifter 25 and the laser welding stopper 27 are both lifting cylinders, and the laser welding buffer column 29 is an oil pressure buffer. When the station sensor 3 senses that the material jig enters the laser welding station, the laser welding stoppers 27 on both sides first lift the laser welding limit plates 28, and the laser welding buffer columns 29 block and position the material jig. Then, the laser welding lifter 25 raises the laser welding fixed material table, so that the laser welding positioning column corresponds to the positioning hole on the material jig. The laser welding lifter 25 continues to rise, so that the material jig is separated from the transmission belt 4 and pressed under the laser welding window. The welding part on the product is exposed by the laser welding groove 26, and the laser welding gun is moved to the alignment position for welding.

[0064] The three-dimensional moving mechanism includes an X-slide electric cylinder, a Y-slide electric cylinder is fixed on the X-slide of the X-slide electric cylinder, a Z-lift electric cylinder is fixed on the Y-slide of the Y-slide electric cylinder, and the lifting end of the Z-lift electric cylinder is fixedly connected to a radium welding gun. The radium welding gun is driven to slide horizontally in the X direction by the X-slide electric cylinder, the radium welding gun is driven to slide horizontally in the Y direction by the Y-slide electric cylinder, and the radium welding gun is driven to lift vertically in the Z direction by the Z-lift electric cylinder, thereby realizing that the radium welding gun can reach any position of the product for welding operation.

[0065] The pressure-keeping station includes a pressure-keeping frame 30 with a pressure-keeping window, on which a pressure-keeping plate 31 is provided, and the pressure-keeping plate 31 is elastically fixed by a plurality of pressure-keeping locking columns 35, and a plurality of pressure-keeping holes are opened on the pressure-keeping plate 31, and a plurality of pressure-keeping blocks 32 are pressed on the top surface of the pressure-keeping plate 31, and the pressure-keeping columns 33 of the pressure-keeping blocks 32 are correspondingly inserted into the pressure-keeping holes; a pressure-keeping lifter 34 is provided below the pressure-keeping window on the pressure-keeping frame 30, and a pressure-keeping material-fixing platform is fixed on the upward lifting rod of the pressure-keeping lifter 34, and at least two pressure-keeping positioning columns are protruding from the pressure-keeping material-fixing platform, and pressure-keeping limiters 36 are symmetrically provided on both sides of the pressure-keeping frame 30, and a pressure-keeping limiter plate 37 is fixed on the upward telescopic rod of the pressure-keeping limiter 36, and a pressure-keeping buffer column 38 facing the pressure-keeping material-fixing platform is provided on the pressure-keeping limiter plate 37.

[0066] The pressure-holding lifter 34 and the pressure-holding limiter 36 are both lifting cylinders, and the pressure-holding buffer column 38 is an oil pressure buffer. When the station sensor 3 senses that the material-carrying jig enters the pressure-holding station, the pressure-holding limiters 36 on both sides first lift the pressure-holding limit plate 37, and the material-carrying jig is blocked and positioned by the pressure-holding buffer column 38, and then the pressure-holding material table is raised by the pressure-holding lifter 34, so that the pressure-holding positioning column corresponds to the positioning hole on the material-carrying jig, and the pressure-holding lifter 34 continues to rise, so that the material-carrying jig is separated from the transmission belt 4 and pressed under the pressure-holding plate 31 in the pressure-holding window, and the several studs 63 assembled on the product are aligned one by one with the several pressure-holding holes, and the pressure-holding block 32 is inserted so that the pressure-holding columns 33 are inserted into the pressure-holding holes one by one and pressed on the studs 63 to perform the pressure-holding operation.

[0067] The welding spot inspection station includes an inspection frame 39 with an inspection window, and an inspection lifter 40 is arranged below the inspection window on the inspection frame 39. An inspection and setting table 41 is fixed on the upward lifting rod of the inspection lifter 40, and at least two inspection positioning columns are protruding from the inspection and setting table 41. Inspection limiters 42 are symmetrically arranged on both sides of the inspection frame 39, and an inspection limit plate 43 is fixed on the upward telescopic rod of the inspection limiter 42. An inspection buffer column 44 facing the inspection and setting table 41 is arranged on the inspection limit plate 43.

[0068] The inspection lifter 40 and the inspection stopper 42 are both lifting cylinders, and the inspection buffer column 44 is an oil pressure buffer. When the station sensor 3 senses that the material jig enters the welding point inspection station, the inspection stoppers 42 on both sides first lift the inspection limit plate 43, and the material jig is blocked and positioned by the inspection buffer column 44, and then the inspection lifter 40 raises the inspection fixed material table 41, so that the inspection positioning column corresponds to the positioning hole on the material jig, and the inspection lifter 40 continues to rise, so that the material jig is separated from the transmission belt 4 and pressed under the inspection window, and each welding point on the product is inspected.

[0069] The ejection mechanism includes an ejection plate 47 fixedly connected to the top of the telescopic rod of the stripping lifter 46, and a plurality of ejection pins 48 and ejection rods 49 are erected on the ejection plate 47. A plurality of corresponding round holes and flat holes are opened on the fixture, and the ejection pins 48 are aligned with the round holes, and the ejection rods 49 are aligned with the flat holes.

[0070] The top of the ejector pin 48 is fixedly connected to the cylindrical head through a cone, and the top of the cylindrical head is a circular plane; the ejector rod 49 is a sheet-shaped rod body, and the top of the ejector rod 49 is a rectangular plane. The product includes an I-shaped part 62 and a T-shaped part 64. The T-shaped part 64 is stacked on the bottom side of the vertical rod of the I-shaped part 62, and a number of studs 63 are laser-welded on the I-shaped part 62; a number of ejector pins 48 are located one by one below the number of studs 63, and a number of ejector rods 49 are located below the T-shaped part 64. The ejector lifter 46 drives the telescopic rod to extend or retract, and synchronously drives the ejector plate 47 and the ejector pins 48 and ejector rods 49 thereon to rise or fall, so that the ejector pins 48 and ejector rods 49 extend into the embedded material groove for ejection. Because the studs 63 are located in the welding position, the ejector pins 48 correspondingly lift the studs 63 of the I-shaped part 62, thereby realizing the ejection of the I-shaped part 62 and avoiding damaging the surface of the I-shaped part 62. The T-shaped piece 64 is correspondingly lifted by the ejecting rod 49, so that the T-shaped piece 64 is removed.

[0071] The positioning assembly includes a plurality of limit blocks 60 in the form of square cones and a plurality of T-shaped positioning blocks 61. The clamping assembly includes a clamping frame 55 slidably mounted in the assembly plate 53. At least one clamping spring 54 is clamped between the clamping frame 55 and the assembly plate 53. A plurality of push rods 56 of the clamping frame 55 form a one-to-one confrontation with the plurality of positioning blocks 61.

[0072] The square pyramidal inclined surface of the limiting block 60 is used to form an introduction angle, which is conducive to the smooth insertion of the I-shaped piece 62 and avoids scratching the edge of the I-shaped piece 62, while improving the assembly efficiency. The peripheral edge of the I-shaped piece 62 is fixed by a plurality of limiting blocks 60, thereby improving the positioning accuracy of the I-shaped piece 62. The edge of the T-shaped piece 64 is positioned by a plurality of positioning blocks 61.

[0073] A clamping opening is formed between a plurality of push rods 56 and a plurality of positioning blocks 61. The T-shaped piece 64 is first placed in the clamping opening, and then the I-shaped piece 62 is stacked on top of the T-shaped piece 64. The clamping frame 55 is pushed by the clamping spring 54, so that the push rod 56 forms an elastic thrust on the product, thereby ensuring a stable clamping state of the product.

[0074] A plurality of mounting holes are provided on the top surface of the assembly plate 53. The elastic support assembly includes a support spring 57 and a support column 58 installed from bottom to top in the mounting hole. The support column 58 extends into the embedded material groove to form a lifting and sliding motion. When the T-shaped piece 64 is placed in the embedded material groove, the plurality of support columns 58 elastically support the T-shaped piece 64, thereby providing a buffer force to avoid crushing the surface of the T-shaped piece 64, and at the same time providing an elastic pressing force to achieve a close fit between the T-shaped piece 64 and the I-shaped piece 62.

[0075] Compared with the existing technology, this laser welding production line has the following beneficial effects:

[0076] 1. The automatic line fixture reflux method is adopted, and the line fixture is refluxed through the lifting mechanism at both ends of the line body, so as to realize the uninterrupted use of the fixture and improve the utilization efficiency of the fixture and the product processing efficiency.

[0077] 2. The automated radium welding line positions the radium welding jig, and the positioning of the jig ensures the position of the radium welded parts. In addition, an inspection station is added to ensure the assembly of the radium welded parts.

[0078] 3. It is specially designed for lifting and removing products after radium welding. The cylinder corresponding to the welding point is used for lifting, and the edge position corresponding to the sheet is used for lifting, so as to avoid the three damages of the product in the process of removing the material and improve the product yield.

[0079] 4. According to the product combination structure, a combination of elastic support and clamping fixation is adopted accordingly, which can not only achieve a close fit between products, but also form a stable clamping effect and effectively avoid causing three damages to the products.

[0080] Embodiment 2

[0081] Based on the first embodiment, the difference of this embodiment is that:

[0082] like Figure 1As shown, an operation method of a laser welding operation line is arranged in sequence from the beginning to the end of the feeding line: 1. Accessory assembly station, 2. Accessory assembly station, 3. Code scanning station, 4. Laser welding station, 5. Accessory assembly station, 6. Accessory assembly station, 7. Pressure holding station, 8. Laser welding station, 9. Laser welding station, 10. Solder point inspection station, 11. Stripping station. The operation method includes the following steps:

[0083] 1. The lifter 5 drives the lifting platform 6 to a low position. The return line places the empty jig on the transfer platform. The in-place sensor senses the empty jig. The lifter 5 lifts the lifting platform 6 to a high position, starts the transfer motor to drive the transfer belt 7 to transport the empty jig to the feeding line.

[0084] 2. The station sensor 3 senses that the empty jig enters the first accessory assembly station. First, the assembly limiters 11 on both sides lift the assembly limit plates 12, and the empty jig is blocked and positioned by the assembly buffer columns 13. Then, the assembly material table 10 is raised by the assembly lifter 9, so that the assembly positioning columns correspond to the positioning holes on the empty jig. The assembly lifter 9 continues to rise, so that the empty jig is separated from the transmission belt 4 and pressed under the assembly window. The T-shaped piece 64 is placed to form a position. The assembly lifter 9 descends to re-place the jig with material on the feeding line, and the assembly limit plate 12 descends to release the jig with material.

[0085] 3. The station sensor 3 senses that the unloaded jig enters the second accessory assembly station. First, the assembly limiters 11 on both sides lift the assembly limit plates 12, and the jig with materials is blocked and positioned by the assembly buffer columns 13. Then, the assembly material table 10 is raised by the assembly lifter 9, so that the assembly positioning columns correspond to the positioning holes on the jig with materials. The assembly lifter 9 continues to rise, so that the jig with materials is separated from the transmission belt 4 and pressed under the assembly window. The workpiece 62 is placed to form a position. The assembly lifter 9 descends to re-place the jig with materials on the feeding line, and the assembly limit plates 12 descend to release the jig with materials.

[0086] 4. The station sensor 3 senses that the material jig enters the code scanning station. First, the code scanning limiters 19 on both sides lift the code scanning limit plates 20, and the code scanning buffer columns 21 are used to block and position the material jig. Then, the code scanning lifter 17 raises the code scanning material table 18, so that the code scanning positioning columns correspond to the positioning holes on the material jig. The code scanning lifter 17 continues to rise, so that the material jig is separated from the transmission belt 4 and pressed under the code scanning window. The translator 15 pushes the code scanning machine 16, and the code scanning machine 16 is turned on to scan and enter the product. The code scanning lifter 17 descends to re-place the material jig on the feeding line, and the scanning limit plate descends to release the material jig.

[0087] 5. The station sensor 3 senses that the material jig enters the first radium welding station. First, the radium welding stoppers 27 on both sides lift the radium welding stopper plates 28, and the material jig is blocked and positioned by the radium welding buffer columns 29. Then, the radium welding material table is raised by the radium welding lifter 25, so that the radium welding positioning columns correspond to the positioning holes on the material jig. The radium welding lifter 25 continues to rise, so that the material jig is separated from the transmission belt 4 and pressed under the radium welding window. The welding part on the product is exposed by the radium welding groove 26. The radium welding gun is moved to the alignment position to weld the T-shaped piece 64 and the I-shaped piece 62. The radium welding lifter 25 descends to place the material jig on the feeding line again, and the radium welding stopper plates 28 descend to release the material jig.

[0088] 6. The station sensor 3 senses that the empty jig enters the third accessory assembly station. First, the assembly limiters 11 on both sides lift the assembly limit plates 12, and the empty jig is blocked and positioned by the assembly buffer columns 13. Then, the assembly material table 10 is raised by the assembly lifter 9, so that the assembly positioning columns correspond to the positioning holes on the empty jig. The assembly lifter 9 continues to rise, so that the empty jig is separated from the transmission belt 4 and pressed under the assembly window. A total of 8 studs 63 are installed at the four corners. The assembly lifter 9 descends to re-place the jig with material on the feeding line, and the assembly limit plates 12 descend to release the jig with material.

[0089] 7. The station sensor 3 senses that the empty jig enters the fourth accessory assembly station. First, the assembly limiters 11 on both sides lift the assembly limit plates 12, and the empty jig is blocked and positioned by the assembly buffer columns 13. Then, the assembly material table 10 is raised by the assembly lifter 9, so that the assembly positioning columns correspond to the positioning holes on the empty jig. The assembly lifter 9 continues to rise, so that the empty jig is separated from the transmission belt 4 and pressed under the assembly window. The two studs 63 in the middle are installed. The assembly lifter 9 descends to re-place the jig with material on the feeding line, and the assembly limit plate 12 descends to release the jig with material.

[0090] 8. The station sensor 3 senses that the material jig enters the pressure-holding station. First, the pressure-holding limiters 36 on both sides lift the pressure-holding limit plates 37, and the pressure-holding buffer columns 38 are used to block and position the material jig. Then, the pressure-holding material table is raised by the pressure-holding lifter 34, so that the pressure-holding positioning columns correspond to the positioning holes on the material jig. The pressure-holding lifter 34 continues to rise, so that the material jig is separated from the transmission belt 4 and pressed under the pressure-holding plate 31 in the pressure-holding window. The 10 studs 63 assembled on the product are aligned with the 10 pressure-holding holes one by one, and the pressure-holding block 32 is inserted so that the pressure-holding columns 33 are inserted into the pressure-holding holes one by one and pressed on the studs 63 for pressure-holding operation. The pressure-holding lifter 34 descends to place the material jig on the feeding line again, and the pressure-holding limit plates 37 descend to release the material jig.

[0091] 9. The station sensor 3 senses that the material jig enters the second radium welding station. First, the radium welding stoppers 27 on both sides lift the radium welding stopper plates 28, and the material jig is blocked and positioned by the radium welding buffer columns 29. Then, the radium welding fixed material table is raised by the radium welding lifter 25, so that the radium welding positioning columns correspond to the positioning holes on the material jig. The radium welding lifter 25 continues to rise, so that the material jig is separated from the transmission belt 4 and pressed under the radium welding window. The welding parts on the product are exposed by the radium welding groove 26. The radium welding gun is moved to the alignment position to weld the four studs 63 at the positioning points. The radium welding lifter 25 descends to re-place the material jig on the feeding line, and the radium welding stopper plates 28 descend to release the material jig.

[0092] 10. The station sensor 3 senses that the material jig enters the third radium welding station. First, the radium welding stoppers 27 on both sides lift the radium welding stopper plates 28, and the material jig is blocked and positioned by the radium welding buffer columns 29. Then, the radium welding material table is raised by the radium welding lifter 25, so that the radium welding positioning columns correspond to the positioning holes on the material jig. The radium welding lifter 25 continues to rise, so that the material jig is separated from the transmission belt 4 and pressed under the radium welding window. The welding parts on the product are exposed by the radium welding groove 26. The radium welding gun is moved to the alignment position to weld the remaining 6 studs 63. The radium welding lifter 25 descends to place the material jig on the feeding line again, and the radium welding stopper plates 28 descend to release the material jig.

[0093] 11. The station sensor 3 senses that the material jig enters the solder joint inspection station. First, the inspection limiters 42 on both sides lift the inspection limit plates 43, and the material jig is blocked and positioned by the inspection buffer column 44. Then, the inspection lifter 40 is raised to the inspection setting table 41, so that the inspection positioning column corresponds to the positioning hole on the material jig. The inspection lifter 40 continues to rise, so that the material jig is separated from the transmission belt 4 and pressed under the inspection window. Each solder joint on the product is inspected. The inspection lifter 40 is lowered to re-place the material jig on the feeding line, and the inspection limit plate 43 is lowered to release the material jig.

[0094] 12. The station sensor 3 senses that the material-carrying jig enters the stripping station. First, the stripping limiters 50 on both sides lift the stripping limit plates 51, and the stripping buffer columns 52 are used to block and position the material-carrying jig. Then, the stripping lifter 46 drives the ejector plate 47 and the ejector pins 48 and the ejector rods 49 thereon to rise and extend into the inserting groove. The ejector pins 48 correspondingly lift the studs 63 of the I-shaped part 62, thereby realizing the stripping effect on the I-shaped part 62. The ejector rods 49 correspondingly lift the T-shaped part 64, thereby realizing the stripping effect on the T-shaped part 64. The stripping lifter 46 descends to place the material-carrying jig on the feeding line again, and the stripping limit plates 51 descend to release the material-carrying jig.

[0095] 13. The lifter 5 lifts the lifting platform 6 to a high position, and the feeding line places the empty jig on the transfer platform. The in-place sensor senses the empty jig, and the lifter 5 lowers the lifting platform 6 to a low position, and starts the transfer motor to drive the transfer belt 7 to transport the empty jig to the return line.

[0096] Compared with the prior art, the operation method of the radium welding production line has the following beneficial effects:

[0097] 1. The automatic line fixture reflux method is adopted, and the line fixture is refluxed through the lifting mechanism at both ends of the line body, so as to realize the uninterrupted use of the fixture and improve the utilization efficiency of the fixture and the product processing efficiency.

[0098] 2. The automated radium welding line positions the radium welding jig, and the positioning of the jig ensures the position of the radium welded parts. In addition, an inspection station is added to ensure the assembly of the radium welded parts.

[0099] 3. It is specially designed for lifting and removing products after radium welding. The cylinder corresponding to the welding point is used for lifting, and the edge position corresponding to the sheet is used for lifting, so as to avoid the three damages of the product in the process of removing the material and improve the product yield.

[0100] 4. According to the product combination structure, a combination of elastic support and clamping fixation is adopted accordingly, which can not only achieve a close fit between products, but also form a stable clamping effect and effectively avoid causing three damages to the products.

[0101] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0102] Although this article uses more base 1; frame 2; station sensor 3; transmission belt 4; lifter 5; lifting platform 6; transfer belt 7; assembly frame 8; assembly lifter 9; assembly material table 10; assembly limiter 11; assembly limit plate 12; assembly buffer column 13; code scanning frame 14; translator 15; code scanning machine 16; code scanning lifter 17; code scanning material table 18; code scanning limiter 19; code scanning limit plate 20; code scanning buffer column 21; radium welding frame 22; radium welding cover 23; fixing block 24; radium welding lifter 25; radium welding groove 26; radium welding limiter 27; radium welding limit plate 28; radium welding buffer column 29; pressure holding frame 30; pressure holding plate 31; pressure holding block 32; pressure holding column 33; pressure holding The pressure lifter 34; the pressure-maintaining locking column 35; the pressure-maintaining stopper 36; the pressure-maintaining stopper plate 37; the pressure-maintaining buffer column 38; the inspection frame 39; the inspection lifter 40; the inspection fixed material table 41; the inspection stopper 42; the inspection stopper plate 43; the inspection buffer column 44; the stripping frame 45; the stripping lifter 46; the ejector plate 47; the ejector pin 48; the ejector rod 49; the stripping stopper 50; the stripping stopper plate 51; the stripping buffer column 52; the assembly plate 53; the clamping spring 54; the clamping frame 55; the push rod 56; the support spring 57; the support column 58; the loading plate 59; the stopper block 60; the positioning block 61; the I-shaped piece 62; the stud 63; the T-shaped piece 64 and other terms are used, but the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

[0103] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A radium welding production line, comprising a feeding line and a return line arranged in parallel up and down, characterized in that: Both ends of the feeding line and the return line are provided with lifting and transferring mechanisms, the feeding line, the lifting and transferring mechanism and the return line are a cyclic transfer jig, the jig comprises an assembly plate and a carrier plate stacked from bottom to top, an embedding groove is arranged on the top surface of the carrier plate, a positioning component is convexly provided around the contour of the embedding groove, a clamping component is arranged in the assembly plate, and an elastic support component is arranged in the embedding groove; at least one accessory assembly station, a code scanning station, at least one radium welding station, a pressure holding station, a solder joint inspection station and a stripping station are arranged from the beginning to the end of the feeding line, the stripping station comprises a stripping frame with a stripping window, a stripping lifter is installed below the stripping window, the stripping lifter lifts and drives the ejecting mechanism, stripping limiters are symmetrically arranged on both sides of the stripping frame, a stripping limiter plate is fixed on the upward telescopic rod of the stripping limiter, and a stripping buffer column facing the ejecting mechanism is arranged on the stripping limiter plate; The lifting and transferring mechanism comprises a lifter, the lifting shaft of the lifter facing upward is fixedly connected to the lifting platform, two sets of transfer pulleys are hinged on the lifting platform, the outer periphery of the transfer pulleys arranged opposite to each other is tensioned and sleeved with a transfer belt, the rotating shaft of any set of transfer pulleys is connected to the transfer motor, and a position sensor is arranged on the lifting platform; The accessory assembly station comprises an assembly rack with an assembly window, an assembly lifter is arranged below the assembly window, an assembly material table is fixedly arranged on an upward lifting rod of the assembly lifter, at least two assembly positioning columns are convexly arranged on the assembly material table, assembly stoppers are symmetrically arranged on both sides of the assembly rack, an assembly stopper plate is fixedly arranged on an upward telescopic rod of the assembly stopper, and an assembly buffer column facing the assembly material table is arranged on the assembly stopper plate; The radium welding station comprises a radium welding frame with a radium welding window, a radium welding cover is arranged on the top surface of the radium welding window, at least two fixed blocks are fixedly arranged around the radium welding window, the fixed blocks are pressed against the side walls of the radium welding cover to form a plane positioning, a radium welding groove is correspondingly opened on the radium welding cover, a three-dimensional moving mechanism is installed on the top surface of the radium welding frame, and the three-dimensional moving mechanism drives and connects a radium welding gun; a radium welding lifter is arranged below the radium welding window, a radium welding fixed material table is fixed on the upward lifting rod of the radium welding lifter, at least two radium welding positioning columns are convexly arranged on the radium welding fixed material table, radium welding limiters are symmetrically arranged on both sides of the radium welding frame, a radium welding limit plate is fixed on the upward telescopic rod of the radium welding limiter, and a radium welding buffer column facing the radium welding fixed material table is arranged on the radium welding limit plate; The ejection mechanism includes an ejection plate fixedly connected to the top of the telescopic rod of the stripping lifter, a plurality of ejection pins and ejection rods are erected on the ejection plate, a plurality of round holes and flat holes are correspondingly opened on the jig, the ejection pins are aligned and penetrated through the round holes, and the ejection rods are aligned and penetrated through the flat holes.

2. The radium welding production line according to claim 1, characterized in that: The feeding line and the return line include machine bases at both ends, which are fixedly connected by a frame, a group of transmission pulleys are hinged on the machine base through a rotating shaft, and the outer periphery of the transmission pulleys at both ends is tensioned and sleeved with a transmission belt, and the rotating shaft of any group of the transmission pulleys is connected to a transmission motor, and a number of station sensors are evenly arranged on the top surface of the frame.

3. The radium welding production line according to claim 1, characterized in that: The code scanning station includes a code scanning frame with a code scanning window, a translator is installed on the top surface of the code scanning frame, a code scanning machine is fixed on the telescopic end of the translator, and the scanning window of the code scanning machine is downwardly aligned with the code scanning window, and a code scanning lifter is arranged below the code scanning window on the code scanning frame, a code scanning material fixing table is fixed on the upward lifting rod of the code scanning lifter, at least two code scanning positioning columns are protruded on the code scanning material fixing table, code scanning limiters are symmetrically arranged on both sides of the code scanning frame, a code scanning limit plate is fixed on the upward telescopic rod of the code scanning limiter, and a code scanning buffer column facing the code scanning material fixing table is arranged on the code scanning limit plate.

4. The radium welding production line according to claim 1, characterized in that: The three-dimensional moving mechanism includes an X-slide electric cylinder, a Y-slide electric cylinder is fixed on the X-slide frame of the X-slide electric cylinder, a Z-lifting electric cylinder is fixed on the Y-slide frame of the Y-slide electric cylinder, and the lifting end of the Z-lifting electric cylinder is fixedly connected to the radium welding gun.

5. The radium welding production line according to claim 1, characterized in that: The pressure-keeping station includes a pressure-keeping frame with a pressure-keeping window, a pressure-keeping plate is provided on the pressure-keeping window, a plurality of pressure-keeping holes are opened on the pressure-keeping plate, a plurality of pressure-keeping blocks are pressed on the top surface of the pressure-keeping plate, and the pressure-keeping columns of the pressure-keeping blocks are correspondingly inserted into the pressure-keeping holes; a pressure-keeping lifter is provided on the pressure-keeping frame below the pressure-keeping window, a pressure-keeping material-setting platform is fixed on the upward lifting rod of the pressure-keeping lifter, at least two pressure-keeping positioning columns are protruding from the pressure-keeping material-setting platform, pressure-keeping limiters are symmetrically provided on both sides of the pressure-keeping frame, a pressure-keeping limit plate is fixed on the upward telescopic rod of the pressure-keeping limiter, and a pressure-keeping buffer column facing the pressure-keeping material-setting platform is provided on the pressure-keeping limit plate.

6. The radium welding production line according to claim 1, characterized in that: The welding point inspection station includes an inspection frame with an inspection window, an inspection lifter is arranged below the inspection window, an inspection and material setting table is fixed on an upward lifting rod of the inspection lifter, at least two inspection positioning columns are protruded on the inspection and material setting table, inspection limiters are symmetrically arranged on both sides of the inspection frame, an inspection limit plate is fixed on an upward telescopic rod of the inspection limiter, and an inspection buffer column facing the inspection and material setting table is arranged on the inspection limit plate.

7. The radium welding production line according to claim 1, characterized in that: The positioning assembly includes a plurality of limiting blocks in the form of square cones and a plurality of T-shaped positioning blocks. The clamping assembly includes a clamping frame slidably mounted in the assembly plate. At least one clamping spring is clamped between the clamping frame and the assembly plate. A plurality of push rods of the clamping frame form a one-to-one confrontation with a plurality of the positioning blocks.

8. The radium welding production line as claimed in claim 1, characterized in that: A plurality of mounting holes are arranged on the top surface of the assembly plate. The elastic support assembly comprises a support spring and a support column which are installed from bottom to top in the mounting holes. The support column extends into the embedding groove to form lifting and sliding.

9. A method for operating a radium welding production line, characterized in that: Arranged from the beginning to the end of the feeding line: the first accessory assembly station, the second accessory assembly station, the code scanning station, the first laser welding station, the third accessory assembly station, the fourth accessory assembly station, the pressure holding station, the second laser welding station, the third laser welding station, the solder joint inspection station, and the stripping station. The operation method includes the following steps: Step 1: The lifter drives the lifting platform to a low position, and the return line places the empty jig on the transfer platform. The in-place sensor senses the empty jig, and the lifter lifts the lifting platform to a high position, and starts the transfer motor to drive the transfer belt to transport the empty jig to the feeding line; Step 2: When the station sensor senses that the empty jig has entered the first accessory assembly station, the assembly limiters on both sides first lift the assembly limit plates, and the empty jig is blocked and positioned by the assembly buffer columns. Then, the assembly material table is raised by the assembly lifter, so that the assembly positioning columns correspond to the positioning holes on the empty jig. The assembly lifter continues to rise, so that the empty jig is separated from the transmission belt and pressed under the assembly window. A T-shaped piece is placed to form a positioning position. The assembly lifter descends to re-place the jig with material on the feeding line, and the assembly limit plate descends to release the jig with material. Step 3: When the station sensor senses that the unloaded jig has entered the second accessory assembly station, the assembly limiters on both sides first lift the assembly limit plates, and the jig with materials is blocked and positioned by the assembly buffer columns. Then, the assembly material table is raised by the assembly lifter, so that the assembly positioning columns correspond to the positioning holes on the jig with materials. The assembly lifter continues to rise, so that the jig with materials is separated from the transmission belt and pressed under the assembly window. The workpiece is placed to form a position. The assembly lifter descends to re-place the jig with materials on the feeding line, and the assembly limit plate descends to release the jig with materials. Step 4: When the station sensor senses that the material jig enters the code scanning station, the code scanning limiters on both sides first lift the code scanning limit plates, and the material jig is blocked and positioned by the code scanning buffer columns. Then, the code scanning material table is raised by the code scanning lifter, so that the code scanning positioning columns correspond to the positioning holes on the material jig. The code scanning lifter continues to rise, so that the material jig is separated from the transmission belt and pressed under the code scanning window. The translator pushes the code scanner, and the code scanner is turned on to scan and enter the product. The code scanning lifter descends to place the material jig on the feeding line again, and the scanning limit plate descends to release the material jig. Step 5. The station sensor senses that the material jig enters the first laser welding station. First, the laser welding limiters on both sides lift the laser welding limit plates, and the material jig is blocked and positioned by the laser welding buffer columns. Then, the laser welding fixed material table is raised by the laser welding lifter, so that the laser welding positioning columns correspond to the positioning holes on the material jig. The laser welding lifter continues to rise, so that the material jig is separated from the transmission belt and pressed under the laser welding window. The welding parts on the product are exposed by the laser welding groove. Move the laser welding gun to the alignment position to weld the T-shaped parts and the I-shaped parts. The laser welding lifter descends to place the material jig on the feeding line again, and the laser welding limit plate descends to release the material jig. Step 6. The station sensor senses that the empty jig enters the third accessory assembly station. First, the assembly limiters on both sides lift the assembly limit plates, and the empty jig is blocked and positioned by the assembly buffer columns. Then, the assembly material table is raised by the assembly lifter, so that the assembly positioning columns correspond to the positioning holes on the empty jig. The assembly lifter continues to rise, so that the empty jig is separated from the transmission belt and pressed under the assembly window. A total of 8 studs are installed at the four corners. The assembly lifter descends to re-place the jig with material on the feeding line, and the assembly limit plate descends to release the jig with material. Step 7. The station sensor senses that the empty jig enters the fourth accessory assembly station. First, the assembly limiters on both sides lift the assembly limit plates, and the empty jig is blocked and positioned by the assembly buffer columns. Then, the assembly material table is raised by the assembly lifter, so that the assembly positioning columns correspond to the positioning holes on the empty jig. The assembly lifter continues to rise, so that the empty jig is separated from the transmission belt and pressed under the assembly window. The two studs in the middle are installed. The assembly lifter descends to re-place the jig with material on the feeding line, and the assembly limit plate descends to release the jig with material. Step 8. When the station sensor senses that the material jig enters the pressure-holding station, the pressure-holding limiters on both sides first lift the pressure-holding limit plate, and the material jig is blocked and positioned by the pressure-holding buffer column. Then, the pressure-holding fixed material table is raised by the pressure-holding lifter, so that the pressure-holding positioning column corresponds to the positioning hole on the material jig. The pressure-holding lifter continues to rise, so that the material jig is separated from the transmission belt and pressed under the pressure-holding plate in the pressure-holding window. The 10 studs assembled on the product are aligned with the 10 pressure-holding holes one by one, and the pressure-holding block is placed so that the pressure-holding columns are inserted into the pressure-holding holes one by one and pressed on the studs for pressure-holding operation. The pressure-holding lifter descends to place the material jig back on the feeding line, and the pressure-holding limit plate descends to release the material jig. Step 9. The station sensor senses that the material jig enters the second radium welding station. First, the radium welding limiters on both sides lift the radium welding limit plates, and the material jig is blocked and positioned by the radium welding buffer columns. Then, the radium welding fixed material table is raised by the radium welding lifter, so that the radium welding positioning columns correspond to the positioning holes on the material jig. The radium welding lifter continues to rise, so that the material jig is separated from the transmission belt and pressed under the radium welding window. The welding parts on the product are exposed by the radium welding groove. Move the radium welding gun to the alignment position to weld the four studs at the positioning points. The radium welding lifter descends to place the material jig back on the feeding line, and the radium welding limit plate descends to release the material jig. Step 10. The station sensor senses that the material jig enters the third radium welding station. First, the radium welding limiters on both sides lift the radium welding limit plates, and the material jig is blocked and positioned by the radium welding buffer columns. Then, the radium welding fixed material table is raised by the radium welding lifter, so that the radium welding positioning columns correspond to the positioning holes on the material jig. The radium welding lifter continues to rise, so that the material jig is separated from the transmission belt and pressed under the radium welding window. The welding parts on the product are exposed by the radium welding groove. Move the radium welding gun to the alignment position to weld the remaining 6 studs. The radium welding lifter descends to place the material jig back on the feeding line, and the radium welding limit plate descends to release the material jig. Step 11. When the station sensor senses that the material jig enters the solder joint inspection station, the inspection limiters on both sides first lift the inspection limit plates, and the material jig is blocked and positioned by the inspection buffer column. Then, the inspection lifter is raised to inspect the material setting table, so that the inspection positioning column corresponds to the positioning hole on the material jig. The inspection lifter continues to rise, so that the material jig is separated from the transmission belt and pressed under the inspection window. Each solder joint on the product is inspected. The inspection lifter is lowered to re-place the material jig on the feeding line, and the inspection limit plate is lowered to release the material jig. Step 12: When the station sensor senses that the material-carrying jig enters the stripping station, the stripping limiters on both sides first lift the stripping limit plates, and the material-carrying jig is blocked and positioned by the stripping buffer columns. Then, the stripping lifter drives the ejector plate and the ejector pins and ejector rods thereon to rise and extend into the embedded material slot. The ejector pins correspondingly lift the studs of the workpieces, thereby realizing the stripping effect on the workpieces. The ejector rods correspondingly lift the T-pieces, thereby realizing the stripping effect on the T-pieces. The stripping lifter descends to re-place the material-carrying jig on the feeding line, and the stripping limit plates descend to release the material-carrying jig. Step 13: The lifter lifts the lifting platform to the highest position, and the feeding line places the empty jig on the transfer platform. The in-place sensor senses the empty jig, and the lifter lowers the lifting platform to the lowest position. The transfer motor is started to drive the transfer belt to transport the empty jig to the return line.

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