Tin sheet forming die

Abstract

The invention relates to the technical field of tin sheet production, in particular to a tin sheet forming die which comprises fixing frames, four hydraulic rods are installed on the upper portions of the inner walls of the fixing frames, an upper male die is jointly installed on output shafts of the four fixing frames, a base is fixedly connected to the inner sides of the fixing frames, and a lower female die assembly is arranged at the upper end of the base. A guide mechanism used for guiding and processing tin sheets is arranged on the inner side of the lower female die assembly, a mechanical arm is installed at the front end of the fixing frame, and an output shaft of the mechanical arm is provided with an industrial control mechanism used for maintaining die core components and processing finished products. Through the array type convex points at the lower end of the upper convex die and the air guide grids with the height slightly smaller than the total thickness of the tin sheet, the preset special-shaped grid and convex point structure is embossed on the surface of the tin sheet, meanwhile, the air guide grids form an interconnected air guide channel network, air is effectively exhausted in the forming process, bubble residues are avoided, and the welding void rate is reduced from the structure source.

Description

Technical Field

[0001] This invention relates to the field of tin sheet production equipment technology, specifically to a tin sheet forming mold. Background Technology

[0002] In the field of metal pressure processing molds, especially in the soldering process of large-area pads on the bottom of packaged devices, the forming quality of the solder sheet directly determines the solder void rate. Current technologies mostly employ direct soldering of ordinary structures or solder paste application processes for the solder sheet, which have significant shortcomings.

[0003] First, the molding structure is simple, resulting in serious air bubble residue during soldering and a high bottom void rate, which cannot meet the requirements of high-reliability packaging. Second, after the tin sheet is formed, surface cleaning, flux coating, and mold maintenance rely on manual labor or scattered equipment. The disconnect between processes leads to low production efficiency, and incomplete cleaning and uneven coating further aggravate the void problem. Third, traditional molds lack integrated intelligent detection and self-maintenance mechanisms. Wear of the upper punch and debris residue need to be checked manually, making it difficult to guarantee molding accuracy. The overall process does not meet the development requirements of automation, integration, and intelligence in the intelligent manufacturing equipment industry. Therefore, we propose a tin sheet forming mold. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a tin sheet forming mold.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: a tin sheet forming mold, including a fixed frame, four hydraulic rods installed on the upper inner wall of the fixed frame, the output shafts of the four hydraulic rods being jointly mounted on an upper punch, a base fixedly connected to the inner side of the fixed frame, a lower die assembly provided at the upper end of the base, a guiding mechanism for guiding the tin sheet on the inner side of the lower die assembly, the guiding mechanism including a curing component for spraying tin sheet, the guiding mechanism including a coating component for guiding movement, a robotic arm installed at the front end of the fixed frame, the output shaft of the robotic arm being provided with an industrial control mechanism for maintaining the core components of the mold and processing finished products, the industrial control mechanism including a cleaning component for detecting and cleaning the upper punch, and a detection component for detecting the tin sheet.

[0006] Preferably, the lower end of the upper punch is provided with multiple sets of air guide grids with a height slightly lower than the total thickness of the tin sheet, and the lower end of the upper punch is provided with protrusions. The height of the protrusions of the upper punch is the same as the total thickness of the tin sheet, and the protrusions of the upper punch are distributed in an array.

[0007] Preferably, the die assembly includes a die body fixedly connected to the base. The upper end of the die body is provided with an assembly groove. Multiple electric ejector plates are provided on the inner side of the assembly groove. The inner wall of the assembly groove is provided with two mutually symmetrical guide grooves. The upper end of the die body is provided with two symmetrical longitudinal grooves and two symmetrical transverse grooves.

[0008] Preferably, the curing component includes two movable blocks, which are slidably connected to the inner side of the longitudinal groove. A first electric telescopic rod is installed at the upper end of the movable block. The output shafts of the two first electric telescopic rods are fixedly connected to a fixed bracket. The fixed bracket is slidably connected to the inner side of the transverse groove. A flux container is provided at the upper end of the fixed bracket. Multiple electric atomizing spray heads are provided on the outer side of the flux container near the rear. A vacuum extraction pipe is provided at the upper end of the movable block near the front end. The vacuum extraction pipe is slidably connected to the inner side of the guide groove.

[0009] Preferably, a gas supply pipe is slidably connected to the inner side of the fixed bracket, the inlet of the gas supply pipe is fixedly connected to compressed argon gas through a pipe, and multiple exhaust valves are spaced apart on the outer side of the gas supply pipe, with multiple rubber hoses fixedly connected to the output pipe of each exhaust valve.

[0010] Preferably, one of the two movable blocks has a first threaded rod threadedly connected to its inner side, and the front and rear ends of the first threaded rod are rotatably connected to the lower die body. The other movable block has a guide rod slidably connected to its inner side, and the front and rear ends of the guide rod are fixedly connected to the lower die body. The curing assembly includes a first motor installed at the rear end of the lower die body, and the output shaft of the first motor is fixedly connected to the first threaded rod.

[0011] Preferably, the coating assembly includes a fixed plate fixedly connected to a fixed bracket. A second motor is installed at the rear end of the fixed plate. A rotating plate is fixedly connected to the output shaft of the second motor. A plurality of locking rods are fixedly connected to the front end of the rotating plate. The locking rods are arranged along the semi-circular arc of the rotating plate. Two sliding plates are slidably connected to the front end of the fixed plate. The front end of one of the two sliding plates is fixedly connected to an air supply pipe. A limiting frame is fixedly connected to the side of the two sliding plates that are close to each other. Two mutually symmetrical locking toothed racks are fixedly connected to the inner wall of the limiting frame. The outer sides of the locking toothed racks engage with the plurality of locking rods.

[0012] Preferably, the cleaning assembly includes an assembly plate fixedly connected to the output shaft of the robotic arm. A second electric telescopic rod is mounted on the upper end of the assembly plate. The output shaft of the second electric telescopic rod is provided with two flexible electric clamps. A first industrial camera is provided on the housing of the flexible electric clamps. Two base plates are fixedly connected to the housing of the second electric telescopic rod. A third electric telescopic rod is provided on the inner side of the base plates. A locking block is fixedly connected to the output shaft of the third electric telescopic rod. A cleaning shaft is rotatably connected to the inner sides of the two locking blocks. A third motor is provided on one side of one of the two locking blocks. The output shaft of the third motor is fixedly connected to the cleaning shaft. Multiple flexible protrusions are provided on the outer side of the cleaning shaft.

[0013] Preferably, the detection component includes a first slide rail, the upper end of which is fixedly connected to an assembly plate. A fourth motor is mounted on one side of the first slide rail. A second threaded rod is rotatably connected to the inner side of the first slide rail. Opposing threads are provided on the outer side of the second threaded rod. The output shaft of the fourth motor is fixedly connected to the second threaded rod. A limit block is threadedly connected to the outer side of the second threaded rod. The limit block is slidably connected to the inner side of the slide groove of the first slide rail. A second slide rail is fixedly connected to the lower end of the limit block. A fourth electric telescopic rod is provided at both the front and rear ends of the second slide rail. A vacuum suction cup is provided on the output shaft of the fourth electric telescopic rod. The vacuum suction cup is slidably connected to the inner side of the second slide rail. A second industrial camera is provided near the top of the outer side of the vacuum suction cup housing. A grating sensor is mounted at the lower end of the first slide rail.

[0014] A method for using a forming mold for tin sheets, applicable to one of the forming molds for tin sheets mentioned above, includes the following steps:

[0015] S1, place the solder sheet inside the lower die assembly, start the output shaft of the hydraulic rod to drive the upper punch to move downward and first contact the solder sheet. Through plastic deformation, the internal grid and bump structure are imprinted. The upper punch continues to move downward and cooperates with the lower die assembly to punch out the shape of the solder sheet.

[0016] S2, the upper punch returns via the hydraulic rod, and under the action of the electric ejector plate, it pushes the formed irregular tin sheet out of the lower die assembly. After the tin sheet is ejected but before it is completely separated, the coating assembly is activated to clean the outside of the tin sheet with airflow, and the curing assembly is activated to perform atomized spraying.

[0017] S3, driven by a robotic arm, moves the industrial control mechanism between the upper punch and the lower die assembly. The cleaning component inspects and replaces the upper punch after production, and the detection component detects and removes the finished solder sheets for sorting.

[0018] Compared with the prior art, the present invention provides a molding die for tin sheets, which has the following beneficial effects:

[0019] 1. This invention uses an array of raised dots (with a height consistent with the total thickness of the tin sheet) at the lower end of the upper punch and an air guide grid with a height slightly lower than the total thickness of the tin sheet to imprint a pre-designed irregular grid and raised dot structure on the surface of the tin sheet. At the same time, the air guide grid forms an interconnected network of air guide channels, effectively expelling air during the forming process and avoiding residual air bubbles, thus reducing the welding void rate from the structural source. Four hydraulic rods synchronously drive the upper punch downward, and with the guide structure of the fixed frame, ensure the parallelism of the upper punch, so that the force is uniform during the imprinting and punching process, resulting in high dimensional accuracy of the tin sheet and neat punched edges. This solves the forming defect problem caused by uneven force on the mold in the prior art.

[0020] 2. Existing technologies often involve separate or manual operations for cleaning the surface of solder sheets and applying flux, resulting in incomplete cleaning and uneven coating. The guiding mechanism of this invention integrates a coating component and a curing component. Compressed argon gas is flexibly blown through a rubber hose to clean the surface of the solder sheet and the mold cavity, while impurities are simultaneously adsorbed by a vacuum extraction pipe, achieving integrated cleaning of physical blowing and vacuum adsorption. After cleaning, an electric atomizing spray head simultaneously sprays flux. Utilizing the high hydrophilicity of the cleaned solder sheet, the flux forms a uniform and defect-free film, significantly improving the wettability of the solder sheet during soldering and effectively reducing the void rate at the bottom of the solder joint. The curing and coating components of the guiding mechanism can be retracted into the transverse groove of the lower mold body via a first electric telescopic rod, achieving integrated storage of the auxiliary mechanism and the mold body without occupying additional space. This solves the problem of separate surface treatment equipment and molds, and scattered layout in existing technologies, making the mold structure more compact and the production cycle more consistent.

[0021] 3. This invention utilizes a cleaning component within an industrial control mechanism. A first industrial camera monitors the usage status of the upper punch in real time, and the flexible tabs of the cleaning shaft can be embedded into the gaps of the air guide grid to deeply clean residual debris. When the upper punch is determined to be unsuitable for production, a flexible electric clamp can automatically clamp and replace it, achieving an automated closed loop of detection, cleaning, and replacement of the core components of the mold. This significantly improves mold maintenance efficiency and avoids subjective errors from manual operation. The detection component, through multi-dimensional detection using a second industrial camera and a grating sensor, combined with automated adsorption and sorting by a vacuum suction cup, achieves full-dimensional detection and sorting of the size, structure, and appearance of the finished tin sheets. This solves the problems of low efficiency and high misjudgment rate in existing manual sorting techniques, ensuring that only qualified products enter subsequent processes and improving product yield. The robotic arm drives the industrial control mechanism to move precisely between mold maintenance and finished product inspection processes, achieving automated continuous operation of molding, cleaning, inspection, and sorting processes. This replaces the manual transfer between multiple processes in existing technologies, significantly improving production efficiency and meeting the automation and intelligent development requirements of the intelligent manufacturing equipment industry. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the upper punch of the present invention;

[0024] Figure 3 This is a schematic diagram of the overall structure of the lower die assembly and guide mechanism of the present invention;

[0025] Figure 4 This is a cross-sectional view of the overall structure of the lower die assembly and guide mechanism of the present invention. Figure 1 ;

[0026] Figure 5 This is a cross-sectional view of the overall structure of the lower die assembly and guide mechanism of the present invention. Figure 1 two;

[0027] Figure 6 This is an enlarged schematic diagram of a portion of the curing component of the present invention. Figure 1 ;

[0028] Figure 7 This is an enlarged schematic diagram of a portion of the curing component of the present invention. Figure 2 ;

[0029] Figure 8 This is an enlarged schematic diagram of a portion of the curing component of the present invention. Figure 3 ;

[0030] Figure 9 This is a cross-sectional schematic diagram of the overall structure of the coating component of the present invention;

[0031] Figure 10 This is a schematic diagram of the overall structure of the industrial control mechanism of the present invention. Figure 1 ;

[0032] Figure 11 This is a schematic diagram of the overall structure of the industrial control mechanism of the present invention. Figure 2 ;

[0033] Figure 12 This is a cross-sectional schematic diagram of the overall structure of the industrial control mechanism of the present invention.

[0034] In the diagram: 1. Fixing frame; 2. Hydraulic rod; 3. Upper punch; 4. Base; 5. Lower die assembly; 51. Lower die body; 52. Assembly slot; 53. Guide slot; 54. Longitudinal slot; 55. Transverse slot; 6. Guide mechanism; 61. Curing assembly; 611. Moving block; 612. First electric telescopic rod; 613. Fixing bracket; 614. Flux tank; 615. Electric atomizing spray head; 616. Gas supply pipe; 617. Exhaust valve; 618. Rubber hose; 619. Vacuum extraction pipe; 6110. First threaded rod; 6111. Guide rod; 6112. First motor; 62. Coating assembly; 621. Fixing plate; 622. Second motor; 623. Rotating plate 624. Clamping rod; 625. Slide plate; 626. Limiting frame; 627. Gear rack; 7. Robotic arm; 8. Industrial control mechanism; 81. Cleaning assembly; 811. Assembly plate; 812. Second electric telescopic rod; 813. Flexible electric clamp; 814. First industrial camera; 815. Base plate; 816. Third electric telescopic rod; 817. Clamping block; 818. Third motor; 819. Cleaning shaft; 82. Detection assembly; 821. First slide rail; 822. Fourth motor; 823. Second threaded rod; 824. Limiting block; 825. Second slide rail; 826. Fourth electric telescopic rod; 827. Vacuum suction cup; 828. Second industrial camera; 829. Grating sensor. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0036] The following electrical components are all electrically connected via an external PLC controller.

[0037] Please see Figure 1 - Figure 12 A molding die for forming tin sheets includes a fixed frame 1. Four hydraulic rods 2 are installed on the upper inner wall of the fixed frame 1. The output shafts of the four hydraulic rods 2 are jointly mounted on an upper punch 3. A base 4 is fixedly connected to the inner side of the fixed frame 1. A lower die assembly 5 is provided at the upper end of the base 4. A guide mechanism 6 for guiding the tin sheets is provided on the inner side of the lower die assembly 5. The guide mechanism 6 includes a curing component 61 for spraying tin sheets and a coating component 62 for guiding movement. A robotic arm 7 is installed at the front end of the fixed frame 1. The output shaft of the robotic arm 7 is provided with an industrial control mechanism 8 for maintaining the core components of the mold and processing finished products. The industrial control mechanism 8 includes a cleaning component 81 for detecting and cleaning the upper punch plate and a detection component 82 for detecting tin sheets.

[0038] In this embodiment, the lower end of the upper punch 3 is provided with multiple sets of air guide grids with a height slightly lower than the total thickness of the tin sheet. The lower end of the upper punch 3 is provided with protrusions. The height of the protrusions of the upper punch 3 is the same as the total thickness of the tin sheet. The protrusions of the upper punch 3 are distributed in an array.

[0039] Specifically, the height of the multiple sets of air guide grids at the lower end of the upper punch 3 is slightly lower than the total thickness of the tin sheet, which can guide air and prevent air bubbles from being generated during forming; the array of bumps at its lower end, which are the same height as the total thickness of the tin sheet, imprint the preset grid and bump structure on the surface of the tin sheet through plastic deformation. At the same time, the upper punch 3 and the lower die assembly 5 cooperate to complete the punching and forming process of the tin sheet shape. The air guide grid divides the entire interior of the tin sheet into multiple interconnected areas, forming a network of air guide channels.

[0040] In this embodiment, the lower die assembly 5 includes a lower die body 51 fixedly connected to the base 4. The upper end of the lower die body 51 is provided with an assembly groove 52. Multiple electric ejector plates are provided on the inner side of the assembly groove 52. The inner wall of the assembly groove 52 is provided with two mutually symmetrical guide grooves 53. The upper end of the lower die body 51 is provided with two relatively symmetrical longitudinal grooves 54 and two relatively symmetrical transverse grooves 55.

[0041] Specifically, the lower die body 51 is fixedly connected to the base 4 to provide support for the lower die part; the assembly groove 52 is used to place the tin sheet to be formed, and the inner electric ejector plate pushes it upward after the tin sheet is formed; the guide groove 53 provides sliding guidance for the vacuum extraction pipe 619; the longitudinal groove 54 provides sliding space for the moving block 611 to realize its back and forth movement; the transverse groove 55 provides sliding guidance for the fixed bracket 613, so that the fixed bracket 613 can move laterally to cover the tin sheet processing area.

[0042] In this embodiment, the curing component 61 includes two moving blocks 611. The moving blocks 611 are slidably connected to the inner side of the longitudinal groove 54. A first electric telescopic rod 612 is installed on the upper end of the moving blocks 611. The output shafts of the two first electric telescopic rods 612 are fixedly connected to a fixed bracket 613. The fixed bracket 613 is slidably connected to the inner side of the transverse groove 55. A flux tank 614 is provided at the upper end of the fixed bracket 613. A plurality of electric atomizing spray heads 615 are provided on the outer side of the flux tank 614 near the rear. A vacuum extraction pipe 619 is provided at the upper end of the moving blocks 611 near the front end. The vacuum extraction pipe 619 is slidably connected to the inner side of the guide groove 53.

[0043] Specifically, the movable block 611 is slidably connected to the inner side of the longitudinal groove 54. Driven by the first motor 6112 and the first threaded rod 6110, it moves linearly along the longitudinal groove 54, causing the fixed bracket 613 and the upper components to move to cover the tin sheet processing area. The first electric telescopic rod 612 is installed on the upper end of the movable block 611. Its output shaft drives the fixed bracket 613 to move along the transverse groove 55, and can also drive the fixed bracket 613, the curing component 61, and the coating component 62 to retract into the transverse groove 55 and reset. The fixed bracket 613 is slidably connected to the inside of the transverse groove 55 and is used to integrate and install components such as the flux tank 614 and the gas supply pipe 616, so as to realize the synchronous movement of each component; the flux tank 614 stores flux, and multiple electric atomizing spray heads 615 on its outside spray flux onto the surface of the cleaned irregular tin sheet, so that the flux forms a uniform film; the vacuum extraction pipe 619 is slidably connected to the inside of the guide groove 53 and moves synchronously with the moving block 611, adsorbing and sweeping impurities and small particles in real time to avoid secondary pollution.

[0044] In this embodiment, a gas supply pipe 616 is slidably connected to the inner side of the fixed bracket 613. The inlet of the gas supply pipe 616 is fixedly connected to compressed argon gas through a pipe. Multiple exhaust valves 617 are spaced apart on the outer side of the gas supply pipe 616. Multiple rubber hoses 618 are fixedly connected to the output pipe of the exhaust valve 617. The output pressure and blowing angle of the exhaust valve 617 are designed for the cavity depth and solder sheet thickness of the assembly groove 52 of the lower die body 51, ensuring that the airflow can accurately act on the gap between the solder sheet surface and the inner wall of the cavity, achieving a customized cleaning effect.

[0045] Specifically, the gas supply pipe 616 is slidably connected to the inside of the fixed bracket 613, and the inlet is fixedly connected to the compressed argon gas through a pipe, delivering the compressed argon gas to multiple exhaust valves 617; the exhaust valves 617 divert the compressed argon gas in the gas supply pipe 616, and blow it onto the surface of the irregular tin sheet and the mold cavity of the assembly slot 52 through multiple rubber hoses 618 connected to the output pipe, removing metal debris and dust; the rubber hoses 618 are flexibly swung under the airflow, physically cleaning the mold cavity and the surface of the irregular tin sheet, improving the cleaning effect.

[0046] In this embodiment, one of the two moving blocks 611 is threadedly connected to a first threaded rod 6110 on its inner side. The front and rear ends of the first threaded rod 6110 are rotatably connected to the lower die body 51. The other moving block 611 is slidably connected to a guide rod 6111 on its inner side. The front and rear ends of the guide rod 6111 are fixedly connected to the lower die body 51. The curing assembly 61 includes a first motor 6112 installed at the rear end of the lower die body 51. The output shaft of the first motor 6112 is fixedly connected to the first threaded rod 6110.

[0047] Specifically, the first threaded rod 6110 is threadedly connected to the inner side of one of the moving blocks 611, and its front and rear ends are rotatably connected to the lower die body 51. Driven by the first motor 6112, it rotates, causing the moving block 611 to move linearly along the longitudinal groove 54. The guide rod 6111 is slidably connected to the inner side of the other moving block 611, and its front and rear ends are fixedly connected to the lower die body 51, providing guidance for the movement of the moving block 611 and ensuring the parallelism and stability of the movement of the two moving blocks 611. The first motor 6112 is installed at the rear end of the lower die body 51, and its output shaft is fixedly connected to the first threaded rod 6110, providing power for the movement of the moving block 611 and driving the curing component 61 to cover the tin sheet processing area.

[0048] In this embodiment, the coating assembly 62 includes a fixed plate 621 fixedly connected to a fixed bracket 613. A second motor 622 is installed at the rear end of the fixed plate 621. A rotating plate 623 is fixedly connected to the output shaft of the second motor 622. A plurality of locking rods 624 are fixedly connected to the front end of the rotating plate 623. The locking rods 624 are arranged along the semi-circular arc of the rotating plate 623. Two sliding plates 625 are slidably connected to the front end of the fixed plate 621. The front end of one of the two sliding plates 625 is fixedly connected to the air supply pipe 616. A limiting frame 626 is fixedly connected to the side of the two sliding plates 625 that are close to each other. Two mutually symmetrical locking racks 627 are fixedly connected to the inner wall of the limiting frame 626. The outer side of the locking racks 627 meshes with the plurality of locking rods 624.

[0049] Specifically, the fixed plate 621 is fixedly connected to the fixed bracket 613 and is used to install components such as the second motor 622, providing an installation base for the coating assembly 62. The second motor 622 is mounted on the fixed plate 621, and its output shaft drives the rotating plate 623 to rotate, providing power for the reciprocating motion of the coating assembly 62. The rotating plate 623 is fixedly connected to the output shaft of the second motor 622, and multiple locking rods 624 arranged along a semi-circular arc at its front end periodically engage with the rack 627, driving the slide plate 625 to reciprocate. The locking rods 624 are fixedly connected to the front end of the rotating plate 623 and are arranged along the semi-circular arc of the rotating plate 623. By engaging with the rack 627, they convert the rotational motion of the rotating plate 623 into the reciprocating linear motion of the slide plate 625. The slide plate 625 slides... Connected to the front end of the fixed plate 621, one of the slide plates 625 is fixedly connected to the air supply pipe 616. Driven by the locking rod 624 and the locking rack 627, it slides back and forth along the fixed plate 621, driving the air supply pipe 616 to move synchronously, thereby achieving comprehensive blowing of the surface of the irregular tin sheet. The limiting frame 626 is fixedly connected to the side of the two slide plates 625 that are close to each other. Two symmetrical locking racks 627 are fixedly connected to the inner wall to connect the two slide plates 625 so that they move synchronously. The motion is transmitted through the engagement of the locking rack 627 and the locking rod 624. The locking rack 627 is fixedly connected to the inner wall of the limiting frame 626 and engages with multiple locking rods 624 on the outer side, converting the rotational motion of the rotating plate 623 into the reciprocating linear motion of the slide plate 625.

[0050] In this embodiment, the cleaning assembly 81 includes an assembly plate 811 fixedly connected to the output shaft of the robotic arm 7. A second electric telescopic rod 812 is mounted on the upper end of the assembly plate 811. The output shaft of the second electric telescopic rod 812 is provided with two flexible electric clamps 813. The housing of the flexible electric clamps 813 is provided with a first industrial camera 814. The housing of the second electric telescopic rod 812 is fixedly connected with two base plates 815. A third electric telescopic rod 816 is provided on the inner side of the base plate 815. The output shaft of the third electric telescopic rod 816 is fixedly connected with a locking block 817. The inner sides of the two locking blocks 817 are rotatably connected to a cleaning shaft 819. A third motor 818 is provided on one side of one of the two locking blocks 817. The output shaft of the third motor 818 is fixedly connected to the cleaning shaft 819. A plurality of flexible protrusions are provided on the outer side of the cleaning shaft 819.

[0051] Specifically, the assembly plate 811 is fixedly connected to the output shaft of the robotic arm 7, and is used to install components such as the second electric telescopic rod 812 and the first slide rail 821, providing an installation base for the industrial control mechanism 8; the second electric telescopic rod 812 is installed on the upper end of the assembly plate 811, and the output shaft drives the flexible electric clamp 813 upward to approach the upper punch 3, while providing auxiliary movement for the fitting of the cleaning shaft 819; the flexible electric clamp 813 is set on the output shaft of the second electric telescopic rod 812, and is used to clamp the upper punch 3 to realize its replacement. The first industrial camera 814 on its housing collects the post-use status image of the upper punch 3 to evaluate whether the upper punch 3 meets the production requirements; the first industrial camera 814 is set on the housing of the flexible electric clamp 813 to collect the post-use status image of the lower end of the upper punch 3 in real time, and transmits it to the control system for analysis and judgment on whether the upper punch 3 can continue production; the base plate 815 is fixedly connected to the housing of the second electric telescopic rod 812, and is set on the inner side. A third electric telescopic rod 816 is provided for mounting support of the third electric telescopic rod 816 and the cleaning shaft 819. The third electric telescopic rod 816 is set inside the base plate 815. The output shaft drives the cleaning shaft 819 to fit against the upper punch 3 through the locking block 817, providing power for the movement of the cleaning shaft 819. The locking block 817 is fixedly connected to the output shaft of the third electric telescopic rod 816. The inner sides of the two locking blocks 817 are rotatably connected to the cleaning shaft 819, which is used to install the cleaning shaft 819 and drive it to fit against the upper punch 3. The third motor 818 is set on one side of one of the locking blocks 817. The output shaft is fixedly connected to the cleaning shaft 819, driving the cleaning shaft 819 to rotate and clean the lower end of the upper punch 3. The cleaning shaft 819 is rotatably connected to the inner sides of the two locking blocks 817. Multiple flexible protrusions are set on the outer side. Under the drive of the third motor 818, the flexible protrusions are rotated and embedded into the air guide grid gap of the upper punch 3 to deeply clean the residual debris in the grid.

[0052] In this embodiment, the detection component 82 includes a first slide rail 821, the upper end of which is fixedly connected to the mounting plate 811. A fourth motor 822 is mounted on one side of the first slide rail 821. A second threaded rod 823 is rotatably connected to the inner side of the first slide rail 821. Opposing threads are provided on the outer side of the second threaded rod 823. The output shaft of the fourth motor 822 is fixedly connected to the second threaded rod 823. A limit block 824 is threadedly connected to the outer side of the second threaded rod 823. The limit block 824 is slidably connected. The lower end of the limiting block 824 is fixedly connected to the inner side of the groove of the first slide rail 821, and the second slide rail 825 is fixedly connected to the inner side of the groove. The front and rear ends of the second slide rail 825 are provided with a fourth electric telescopic rod 826. The output shaft of the fourth electric telescopic rod 826 is provided with a vacuum suction cup 827. The vacuum suction cup 827 is slidably connected to the inner side of the second slide rail 825. The outer side of the vacuum suction cup 827 is provided with a second industrial camera 828 near the top. The lower end of the first slide rail 821 is equipped with a grating sensor 829.

[0053] Specifically, the upper end of the first slide rail 821 is fixedly connected to the assembly plate 811, and the inner side is rotatably connected to the second threaded rod 823, which provides sliding guidance for the limiting block 824, realizing the lateral movement of the limiting block 824; the fourth motor 822 is installed on one side of the first slide rail 821, and the output shaft is fixedly connected to the second threaded rod 823, driving the second threaded rod 823 to rotate, providing power for the opposing movement of the limiting block 824; the inner side of the second threaded rod 823 is rotatably connected to the first slide rail 821, and the outer side is provided with opposing threads, which rotate under the drive of the fourth motor 822, driving the two limiting blocks 824 to move in opposite directions through the opposing threads; the limiting block 824 is threaded to the outer side of the second threaded rod 823 and slidably connected to the inner side of the slide groove of the first slide rail 821, driving the second slide rail 825 to move laterally along the first slide rail 821; the second slide rail 825 is fixedly connected to the lower end of the limiting block 824, and the front... The rear two ends are equipped with a fourth electric telescopic rod 826, which provides longitudinal movement guidance for the vacuum chuck 827 and the second industrial camera 828. The fourth electric telescopic rod 826 is set at the front and rear ends of the second slide rail 825. The output shaft drives the vacuum chuck 827 and the second industrial camera 828 to move longitudinally along the second slide rail 825 to realize the longitudinal position adjustment of the tin sheet. The vacuum chuck 827 is slidably connected to the inner side of the second slide rail 825 and is used to adsorb the finished tin sheet and bring it out of the mold area for sorting. The second industrial camera 828 is set on the upper outer side of the vacuum chuck 827 housing and collects images of the tin sheet surface grid, bump structure and shape size in real time. It is fused with the detection data of the grating sensor 829 to determine the finished state of the tin sheet. The grating sensor 829 is installed at the lower end of the first slide rail 821 to perform initial position and contour detection of the tin sheet and cooperate with the second industrial camera 828 to determine the finished state of the tin sheet.

[0054] A method for using a forming mold for tin sheets, applicable to one of the forming molds for tin sheets mentioned above, includes the following steps:

[0055] S1, place the tin sheet inside the lower die assembly 5, start the output shaft of the hydraulic rod 2 to drive the upper punch 3 to move downward and first contact the tin sheet. Through plastic deformation, the internal grid and bump structure are imprinted. The upper punch 3 continues to move downward and cooperates with the lower die assembly 5 to punch out the shape of the tin sheet.

[0056] S2, the upper punch 3 returns through the hydraulic rod 2, and under the action of the electric ejector plate, pushes the formed irregular tin sheet out of the lower die assembly 5. After the tin sheet is ejected and before it is completely separated, the coating assembly 62 is started to clean the outside of the tin sheet with airflow, and the curing assembly 61 is started to perform atomized spraying.

[0057] S3, the robotic arm 7 drives the industrial control mechanism 8 to move between the upper punch 3 and the lower die assembly 5. The cleaning component 81 checks the post-production status of the upper punch 3 and replaces it. The detection component 82 detects and removes the finished solder sheets for sorting.

[0058] Working principle: During use, the solder sheet is precisely placed inside the assembly groove 52 of the lower die body 51. The four hydraulic rods 2 above the inner wall of the fixing frame 1 are activated by the mold integrated control system. Their output shafts synchronously drive the upper punch 3 to descend linearly along the guide structure of the fixing frame 1. It first contacts the surface of the solder sheet. Using the array of protrusions at the lower end of the upper punch 3, whose height is consistent with the total thickness of the solder sheet, and the air guide grid whose height is slightly lower than the total thickness of the solder sheet, the preset grid and protrusion structure are imprinted on the surface of the solder sheet through plastic deformation. The upper punch 3 continues to descend and precisely cooperates with the lower die assembly 5 to complete the punching and forming process of the solder sheet shape.

[0059] After the upper punch 3 is driven back by the hydraulic rod 2, the mold control system immediately links with multiple electric ejector plates inside the assembly groove 52 to push the formed shaped tin sheet upward. When the tin sheet is ejected to the critical state before it is completely separated from the assembly groove 52, the guide mechanism 6 is activated in conjunction with the mold body to realize the continuous connection between the forming process and the core process of the mold. First, start the coating assembly 62: start the second motor 622 on the fixed plate 621, whose output shaft drives the rotating plate 623 to rotate. Multiple locking rods 624 arranged along the semi-circular arc at the front end of the rotating plate 623 periodically engage two symmetrical locking racks 627 on the inner wall of the limiting frame 626. Through the limiting frame 626, the two sliding plates 625 are driven to slide back and forth along the fixed plate 621. One of the sliding plates 625 synchronously drives the gas supply pipe 616 slidably connected to the inner side of the fixed bracket 613 to move synchronously. The compressed argon gas entering through the pipeline at the inlet of the gas supply pipe 616 is diverted through multiple exhaust valves 617. Multiple rubber hoses 618 connected to the outlet pipe of the exhaust valve 617 are used to precisely blow the surface of the tin sheet and the mold cavity of the assembly slot 52. The airflow drives the rubber hoses 618 to swing flexibly, physically cleaning the metal debris and dust attached to the mold cavity and the surface of the tin sheet, ensuring the cleanliness of the tin sheet surface.

[0060] While the coating component 62 is being purged, the curing component 61 is activated in conjunction: the first motor 6112 at the rear end of the lower die body 51 is activated, and its output shaft drives the first threaded rod 6110 to rotate. The moving block 611, which is threadedly connected to the first threaded rod 6110, moves linearly along the longitudinal groove 54, and the other moving block 611 slides synchronously along the guide rod 6111 to ensure the parallelism and stability of the movement of the two moving blocks 611. The moving block 611 drives the fixed bracket 613 to move along the inner side of the transverse groove 55 through the first electric telescopic rod 612, covering the entire tin sheet processing area. The vacuum extraction pipe 619 near the front end of the upper part of the moving block 611 moves synchronously along the guide groove 53, adsorbing and removing impurities and tiny particles blown up in real time, avoiding secondary pollution caused by impurities falling, and realizing integrated cleaning of blowing and adsorption; while the cleaning process is progressing, multiple electric atomizing spray heads 615 on the outside of the flux tank 614 on the upper part of the fixed bracket 613 are started simultaneously, spraying flux onto the cleaned solder sheet surface. Utilizing the high hydrophilicity of the cleaned solder sheet surface, the flux forms a uniform and defect-free film, improving the subsequent performance of the solder sheet. After the guide mechanism 6 completes the cleaning and spraying process, the first electric telescopic rod 612 drives the fixed bracket 613 and the integrated curing component 61 and coating component 62 above to retract into the transverse groove 55 to reset, ensuring that the upper part of the lower mold body 51 remains horizontal, providing a flat working surface for the next molding process, and realizing the integrated storage of the mold auxiliary mechanism and the main body;

[0061] After the guiding mechanism completes its 6th process, the mold control system activates the robotic arm 7 mounted at the front end of the fixed frame 1. Its output shaft drives the industrial control mechanism 8 to precisely move to the preset position between the upper punch 3 and the lower die assembly 5, realizing the automated connection between mold core component maintenance and finished product processing. First, the cleaning assembly 81 is activated: the second electric telescopic rod 812 on the upper end of the assembly plate 811 is activated, and its output shaft drives the flexible electric clamp 813 to move upward towards the upper punch 3. At the same time, the first industrial camera 814 on the housing of the flexible electric clamp 813 collects the post-use status image of the lower end of the upper punch 3 in real time and transmits it to the control system for analysis. Simultaneously, the two third electric telescopic rods 816 on the inner side of the base plate 815 are activated, and their output shafts drive the cleaning shaft 819 to precisely fit against the lower end surface of the upper punch 3 through the locking block 817. The third motor 818 is activated to drive the cleaning shaft 819 to rotate. Multiple flexible protrusions on the outer side of the cleaning shaft 819 are embedded into the air guide grid gaps of the upper punch 3 to deeply clean the debris remaining in the grid. After cleaning, the first industrial camera 814 collects images again. The control system evaluates whether the upper punch 3 meets the requirements for the next production. If it is determined that the production status is not met, the control system immediately links the flexible electric clamp 813 to accurately clamp the upper punch 3 and complete the automatic replacement, realizing the intelligent detection, maintenance and replacement of the core components of the mold.

[0062] After the cleaning component 81 completes its work, the detection component 82 is activated under the linkage of the control system: the grating sensor 829 at the lower end of the first slide rail 821 is turned on to perform initial position and contour detection on the finished tin sheet in the assembly slot 52; the fourth motor 822 on one side of the first slide rail 821 is activated, and its output shaft drives the inner second threaded rod 823 to rotate. Using the opposing threads on the outer side of the second threaded rod 823, the two limit blocks 824 are driven to move synchronously in opposite directions along the slide groove of the first slide rail 821, thereby driving the second slide rail 825 at the lower end of the limit block 824 to achieve lateral position adjustment; the fourth electric telescopic rod 826 at both ends of the second slide rail 825 is activated simultaneously to drive the vacuum suction cup 827 and the second industrial camera 828 on the outer side of the vacuum suction cup 827 housing to move longitudinally along the second slide rail 825, forming a two-dimensional moving detection trajectory. The second industrial camera 828 acquires real-time images of the grid, bump structure, and dimensions of the tin sheet surface. These images are then fused with the detection data from the grating sensor 829, and the control system accurately determines the finished product's status. After the determination is complete, the vacuum suction cup 827 precisely picks up the finished tin sheet, and the robotic arm 7 carries the tin sheet out of the mold area. The tin sheet is then automatically sorted according to the detection results, achieving integrated detection and sorting operations.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A molding die for forming tin sheets, comprising a fixing frame (1), characterized in that: Four hydraulic rods (2) are installed on the upper inner wall of the fixed frame (1). The output shafts of the four hydraulic rods (2) are jointly installed with an upper punch (3). A base (4) is fixedly connected to the inner side of the fixed frame (1). A lower die assembly (5) is provided at the upper end of the base (4). A guide mechanism (6) for guiding the tin sheet is provided on the inner side of the lower die assembly (5). The guide mechanism (6) includes a curing assembly (61) for spraying tin sheet and a coating assembly (62) for guiding movement. A robotic arm (7) is installed at the front end of the fixed frame (1). An industrial control mechanism (8) for maintenance of the core components of the mold and finished product processing is provided on the output shaft of the robotic arm (7). The industrial control mechanism (8) includes a cleaning assembly (81) for detecting and cleaning the upper punch plate and a detection assembly (82) for detecting tin sheet.

2. The forming mold for tin sheets according to claim 1, characterized in that: The lower end of the upper punch (3) is provided with multiple sets of air guide grids with a height slightly lower than the total thickness of the tin sheet. The lower end of the upper punch (3) is provided with protrusions. The height of the protrusions of the upper punch (3) is the same as the total thickness of the tin sheet. The protrusions of the upper punch (3) are distributed in an array.

3. The forming mold for tin sheets according to claim 1, characterized in that: The lower die assembly (5) includes a lower die body (51) fixedly connected to the base (4). The upper end of the lower die body (51) is provided with an assembly groove (52). Multiple electric ejector plates are provided on the inner side of the assembly groove (52). The inner wall of the assembly groove (52) is provided with two mutually symmetrical guide grooves (53). The upper end of the lower die body (51) is provided with two relatively symmetrical longitudinal grooves (54). The upper end of the lower die body (51) is provided with two relatively symmetrical transverse grooves (55).

4. The forming mold for tin sheets according to claim 1, characterized in that: The curing component (61) includes two movable blocks (611), which are slidably connected to the inner side of the longitudinal groove (54). A first electric telescopic rod (612) is installed on the upper end of the movable block (611). The output shafts of the two first electric telescopic rods (612) are fixedly connected to a fixed bracket (613). The fixed bracket (613) is slidably connected to the inner side of the transverse groove (55). A flux tank (614) is provided at the upper end of the fixed bracket (613). Multiple electric atomizing spray heads (615) are provided on the outer side of the flux tank (614) near the rear. A vacuum extraction pipe (619) is provided on the upper end of the movable block (611) near the front end. The vacuum extraction pipe (619) is slidably connected to the inner side of the guide groove (53).

5. The forming mold for tin sheets according to claim 4, characterized in that: The inner side of the fixed bracket (613) is slidably connected to a gas supply pipe (616). The inlet of the gas supply pipe (616) is fixedly connected to compressed argon gas through a pipe. Multiple exhaust valves (617) are provided at intervals on the outer side of the gas supply pipe (616). Multiple rubber hoses (618) are fixedly connected to the outlet pipe of the exhaust valve (617).

6. The forming mold for tin sheets according to claim 4, characterized in that: One of the two movable blocks (611) is threaded with a first threaded rod (6110) on its inner side. The front and rear ends of the first threaded rod (6110) are rotatably connected to the lower die body (51). The other movable block (611) is slidably connected with a guide rod (6111) on its inner side. The front and rear ends of the guide rod (6111) are fixedly connected to the lower die body (51). The curing component (61) includes a first motor (6112) installed at the rear end of the lower die body (51). The output shaft of the first motor (6112) is fixedly connected to the first threaded rod (6110).

7. The forming mold for tin sheets according to claim 1, characterized in that: The coating assembly (62) includes a fixed plate (621) fixedly connected to a fixed bracket (613). A second motor (622) is installed at the rear end of the fixed plate (621). A rotating plate (623) is fixedly connected to the output shaft of the second motor (622). A plurality of locking rods (624) are fixedly connected to the front end of the rotating plate (623). The locking rods (624) are arranged along the semi-circular arc of the rotating plate (623). Two sliding plates (625) are slidably connected to the front end of the fixed plate (621). The front end of one of the two sliding plates (625) is fixedly connected to the air supply pipe (616). A limiting frame (626) is fixedly connected to the side of the two sliding plates (625) that are close to each other. Two mutually symmetrical locking racks (627) are fixedly connected to the inner wall of the limiting frame (626). The outer side of the locking racks (627) meshes with the plurality of locking rods (624).

8. The forming mold for tin sheets according to claim 1, characterized in that: The cleaning assembly (81) includes an assembly plate (811) fixedly connected to the output shaft of the robotic arm (7). A second electric telescopic rod (812) is mounted on the upper end of the assembly plate (811). The output shaft of the second electric telescopic rod (812) is provided with two flexible electric clamps (813). The housing of the flexible electric clamps (813) is provided with a first industrial camera (814). The housing of the second electric telescopic rod (812) is fixedly connected with two base plates (815). A third electric telescopic rod (816) is provided on the inner side of the device. The output shaft of the third electric telescopic rod (816) is fixedly connected to a locking block (817). The inner sides of the two locking blocks (817) are rotatably connected to a cleaning shaft (819). A third motor (818) is provided on one side of one of the two locking blocks (817). The output shaft of the third motor (818) is fixedly connected to the cleaning shaft (819). Multiple flexible protrusions are provided on the outer side of the cleaning shaft (819).

9. The forming mold for tin sheets according to claim 1, characterized in that: The detection component (82) includes a first slide rail (821), the upper end of which is fixedly connected to the mounting plate (811). A fourth motor (822) is mounted on one side of the first slide rail (821). A second threaded rod (823) is rotatably connected to the inner side of the first slide rail (821). Opposing threads are provided on the outer side of the second threaded rod (823). The output shaft of the fourth motor (822) is fixedly connected to the second threaded rod (823). A limit block (824) is threadedly connected to the outer side of the second threaded rod (823). The limit block (824) is slidably connected to... The lower end of the limiting block (824) is fixedly connected to the inner side of the groove of the first slide rail (821), and the second slide rail (825) is fixedly connected to the lower end of the limiting block (824). The front and rear ends of the second slide rail (825) are provided with a fourth electric telescopic rod (826). The output shaft of the fourth electric telescopic rod (826) is provided with a vacuum suction cup (827). The vacuum suction cup (827) is slidably connected to the inner side of the second slide rail (825). The outer side of the vacuum suction cup (827) near the upper position is provided with a second industrial camera (828). The lower end of the first slide rail (821) is equipped with a grating sensor (829).

10. The method of using a tin sheet forming mold according to claim 1, applicable to a tin sheet forming mold according to any one of claims 1-9, characterized in that: Includes the following steps: S1, place the tin sheet inside the lower die assembly (5), start the output shaft of the hydraulic rod (2) to drive the upper punch (3) to move downward and first contact the tin sheet. Through plastic deformation, the internal grid and bump structure are stamped out. The upper punch (3) continues to move downward and cooperates with the lower die assembly (5) to punch out the shape of the tin sheet. S2, the upper punch (3) returns through the hydraulic rod (2), and under the action of the electric ejector plate, the shaped tin sheet is pushed out of the lower die assembly (5). After the tin sheet is ejected and before it is completely separated, the coating assembly (62) is started to clean the airflow on the outside of the tin sheet, and the curing assembly (61) is started to perform atomized spraying. S3, the robotic arm (7) drives the industrial control mechanism (8) to move between the upper punch (3) and the lower die assembly (5), the cleaning assembly (81) checks the post-production status of the upper punch (3) and replaces it, and the detection assembly (82) detects and removes the finished tin sheets for sorting.

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