Welding tool and method for copper paste metal aluminum oxide ceramic substrate

Abstract

The invention discloses a welding tool and method for a copper paste metal aluminum oxide ceramic substrate, and relates to the technical field of circuit boards, the welding tool comprises a main body, a mounting groove, a limiting mechanism, an auxiliary mechanism and a lifting mechanism, the mounting groove is formed in the main body, the auxiliary mechanism is arranged in the mounting groove, and the limiting mechanism is mounted on the auxiliary mechanism; lifting mechanisms are symmetrically arranged on one side of the mounting groove, a storage cover is detachably mounted on the upper side surface of the main body, a lifting table is fixedly connected to the side, close to the storage cover, of the main body, and a welding assembly is slidably connected to the lifting table; a second motor of the device starts to drive a sliding block to linearly move along a sliding rail, a first threaded rod rotates to enable a driving piece to drive a fan to move and work, ventilation and heat dissipation are conducted on a base plate, power of a lifting mechanism is associated with movement of the sliding block of an auxiliary mechanism, movement of the sliding block is converted into sliding of a movable frame, and a movable frame protruding block pushes a lifting plate transmission block; the lifting plate rotates around the rotating frame, and the welding and discharging requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of circuit boards, in particular to a welding tool and method for a copper slurry metal alumina ceramic substrate. Background Art

[0002] With the rapid development of electronic technology, electronic equipment is moving towards miniaturization, high performance and high reliability. Among many electronic components, ceramic substrates have been widely used in power semiconductors, integrated circuits and other fields due to their excellent electrical insulation properties, high thermal conductivity, thermal expansion coefficient matching the chip, and chemical stability. Among them, copper paste metal alumina ceramic substrates have become one of the key basic materials to meet the needs of high-end electronic equipment due to their good conductivity and processability. However, in order to give full play to the performance advantages of copper paste metal alumina ceramic substrates and achieve reliable connection with other electronic components, high-quality welding processes and suitable welding tooling are essential; During the welding process, ensuring that the substrate is in a precise and stable position is a key factor in ensuring welding quality. Traditional tooling often relies on simple fixtures or slots to fix the substrate. For workpieces such as copper paste metal alumina ceramic substrates that require high positioning accuracy, it is difficult to achieve micron-level or even higher precision positioning, which can easily lead to position deviation of the welding joint, affecting the electrical connection performance and overall reliability of the product; the welding of copper paste metal alumina ceramic substrates needs to be carried out under specific temperature, pressure and ventilation conditions to ensure good melting and diffusion of welding materials and avoid impurities from mixing into the solder joints. Some existing welding tooling lacks effective auxiliary functions, such as being unable to provide a stable and uniform ventilation and heat dissipation environment, which can easily cause local overheating and smoke accumulation during welding, thereby affecting the quality of the solder joints and may even damage the substrate material; different welding process scenarios, such as multi-layer welding and the need to adjust the welding angle, have different requirements for the height of the substrate. However, most conventional welding tooling lacks a flexible height adjustment mechanism, making it difficult to quickly and accurately adjust the substrate to a suitable height position, limiting the diversity and adaptability of the welding process, and increasing the difficulty and time cost of operation; The traditional welding tooling may not be reasonable in structural design, and lacks effective linkage and automation between various operation links. For example, in the steps of placing the substrate, adjusting the position, welding, and taking out the finished product, frequent manual intervention, complex manual adjustments and repeated operations are required, resulting in low overall welding operation efficiency and difficulty in meeting large-scale and high-efficiency production needs. Therefore, those skilled in the art provide a welding tool and method for copper slurry metal alumina ceramic substrates to solve the problems raised in the above background technology. Summary of the invention

[0003] The object of the present invention is to provide a welding tool and method for a copper slurry metal alumina ceramic substrate to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A welding tool for a copper slurry metal alumina ceramic substrate, comprising a main body, a mounting slot, a lifting platform, a limiting mechanism, an auxiliary mechanism and a lifting mechanism, wherein the four corners of the bottom of the main body are fixedly connected with support legs, and a mounting slot is provided inside the main body, an auxiliary mechanism is arranged inside the mounting slot, a limiting mechanism is installed on the auxiliary mechanism, and a lifting mechanism is symmetrically arranged on one side of the mounting slot, a storage cover is detachably installed on the upper surface of the main body, and a lifting platform is fixedly connected to a side of the main body close to the storage cover, and a welding assembly is slidably connected to the lifting platform; The auxiliary mechanism includes a first synchronous wheel, a synchronous belt, a first threaded rod, a second threaded rod, a slide rail, a second motor, a second synchronous wheel, a driving member, a guide groove, a threaded sleeve, a guide block, a sliding block and a fan. A second motor is embedded in one side of the installation groove, a second threaded rod is fixedly connected to an output end of the second motor, and slide rails are fixedly connected to both sides of the second threaded rod in the installation groove, sliding blocks are movably connected to the slide rails and the second threaded rod, and the first threaded rod is movably connected above the second threaded rod in the installation groove, a first synchronous wheel and a second synchronous wheel are respectively arranged on one side of the first threaded rod and the second threaded rod, and a synchronous belt is sleeved between the first synchronous wheel and the second synchronous wheel.

[0005] As a further solution of the present invention: the limiting mechanism includes a mounting seat, a guide rod, a fixed frame, a limiting seat, a rotating groove, a limiting plate, a transmission plate, a transmission rod, a limiting rod, a rotating shaft, a first motor and a rotating disk, the upper side of the sliding block is fixedly connected to the mounting seat, the upper side of the mounting seat is symmetrically provided with guide rods, both sides of the guide rods are movably connected to the fixing frames, and the lower side of the fixing frames are fixedly connected with transmission plates, and the inside of the mounting seat is provided with the first motor, the output end of the first motor is fixedly connected to the rotating disk, both sides of the rotating disk are movably connected with transmission rods, the side of the transmission rod away from the rotating disk is movably connected with the transmission plate, and the upper side of the fixed frame is fixedly connected with the limiting seat.

[0006] As a further solution of the present invention: a rotation groove is symmetrically opened on the upper side of the limit seat, a rotation shaft is movably connected in the rotation groove, the rotation groove is movably connected to the limit plate through the rotation shaft, and a limit rod is symmetrically arranged on the lower side of the limit plate, the limit rod has an arc-shaped structure, and the limit rod is located in the rotation groove.

[0007] As a further solution of the present invention: the first threaded rod is located on the limit seat, and a driving member is movably connected to the first threaded rod and the limit seat, a guide groove is provided on the inner surface of the driving member, a threaded sleeve is movably connected inside the driving member, a guide block is provided on the side of the threaded sleeve close to the guide groove, the guide block is located in the guide groove, and the threads of the threaded sleeve and the first threaded rod cooperate with each other, and a fan is connected to the fixed rod on the side of the driving member away from the first threaded rod.

[0008] As a further solution of the present invention: the lifting mechanism includes a lifting plate, a transmission rack, a fixed block, a fixed rod, a transmission wheel, a transmission block, a rotating frame, a movable frame and a protrusion. Slide grooves are opened on both sides of the installation groove close to the second motor, and the movable frame is slidably connected inside the slide groove. The lower side of the sliding frame is a rack structure, and the upper side of the sliding frame is fixedly connected to a protrusion, and one side of the slide groove is fixedly connected to a rotating frame, and a lifting plate is movably connected to the rotating frame, and the lifting plate is fixedly connected to the side of the rotating frame close to the transmission block, and the transmission block and the protrusion cooperate with each other.

[0009] As a further solution of the present invention: fixed blocks are fixedly connected on both sides of the mounting seat, fixed rods are provided on the fixed blocks, transmission wheels are movably connected to the fixed rods, and a transmission rack is fixedly connected on one side of the mounting groove close to the slide rail, the transmission rack and the transmission wheel are meshed with each other, and the transmission wheel and the sliding frame are meshed with each other.

[0010] As a further solution of the present invention: a gasket is arranged on the side of the lifting plate away from the rotating frame, the gasket is made of rubber material, and a base plate is placed on the limiting seat, and the lifting plate and the base plate cooperate with each other.

[0011] As a further solution of the present invention: a plurality of through holes are arranged at equal distances on the surface of the fan, the through holes cooperate with the surface of the substrate, and the fan is electrically connected to an external power supply.

[0012] A method for welding a copper slurry metal alumina ceramic substrate comprises the following steps: S1: Start the second motor of the auxiliary mechanism to drive the second threaded rod to rotate, and with the help of the guide rail, the sliding block moves linearly. At the same time, the first threaded rod rotates synchronously through the synchronous belt, driving the auxiliary mechanism and the limit mechanism to move to the initial position suitable for placing the substrate; S2: Start the first motor of the limit mechanism, the rotating disk rotates to drive the transmission rod to swing, so that the fixed frame moves along the guide rod, accurately defines the direction, drives the limit seat and the limit plate to be fine-tuned, so that the limit plate fits tightly to the substrate and accurately positions the substrate; S3: The first threaded rod rotates to make the driving part move axially, driving the fan to be in place and then connected to the power supply. The through hole of the fan is aligned with the surface of the substrate to ventilate and dissipate heat, blow away smoke and prevent impurities from gathering, thus creating a welding environment; S4: The sliding block of the auxiliary mechanism moves to drive the transmission wheel to rotate, driving the movable frame to slide along the slide groove, and the protrusion moves with it, pushing the transmission block of the lifting plate. The lifting plate rotates around the rotating frame, and its rubber gasket contacts the substrate and lifts the substrate to the required height to meet the welding height requirements.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. When the second motor is started, its output end will drive the second threaded rod fixedly connected thereto to rotate. In the installation groove, a second synchronous wheel is arranged on one side of the second threaded rod, and a first synchronous wheel is arranged on one side of the first threaded rod located above the second threaded rod. A synchronous belt is sleeved between the first synchronous wheel and the second synchronous wheel. With the transmission effect of the synchronous belt, the first threaded rod can rotate at the same speed and direction as the second threaded rod. In the installation groove, since the sliding block and the second threaded rod are threadedly connected, under the guidance of the slide rail, the sliding block will move linearly along the direction of the slide rail, and the synchronous rotation of the first threaded rod further ensures the coordination and stability of the entire transmission process, making the movement of the sliding block more stable and orderly. The first threaded rod is located on the limit seat. When the first threaded rod rotates driven by the synchronous belt, based on the thread matching relationship, the threaded sleeve will generate axial displacement movement along the first threaded rod, and because of the limit guiding effect of the guide block in the guide groove, the entire driving member is driven to perform corresponding linear rotation along the axial direction of the first threaded rod. Therefore, when the driving member moves in the above process, the fan will also move synchronously, and the fan itself is electrically connected to the external power supply and can be powered on and work normally. A plurality of through holes are arranged at equal distances on the surface of the fan, and these through holes cooperate with the surface of the substrate. When the fan is working, the through holes can be used to ventilate the surface of the substrate, dissipate heat, or blow away impurities generated during welding, etc., depending on the actual needs in the welding process; 2. When the first motor is started, the output end of the motor will drive the rotating disk fixedly connected thereto to rotate. As the rotating disk rotates, the transmission rod will make a corresponding swinging action like a connecting rod mechanism, and then drive the fixed frame to move along the guide rod symmetrically arranged on the upper side of the mounting seat through the transmission plate. A rotating groove is symmetrically opened on the upper side of the limit seat, and the limit plate is movably connected to the rotating shaft in the rotating groove. When the fixed frame moves under the drive of the transmission rod, the limit seat will also move to the corresponding position synchronously, and the limit rod with an arc structure symmetrically arranged on the lower side of the limit plate is located in the rotating groove. This structural design allows the limit plate to rotate around the rotating shaft at a certain angle. When the workpiece needs to be limited, after the limit seat moves to the appropriate position, the workpiece will contact the limit plate. The blocking effect of the limit plate and the limit rod is utilized to limit the workpiece from multiple directions, limit the translation of the workpiece in the plane and limit its rotation to a certain extent, thereby ensuring that the workpiece can be stably in the set position during the welding process, and ensuring that the welding operation can be carried out accurately and smoothly. 3. The power transmission of the lifting mechanism is related to the movement of the sliding block in the auxiliary mechanism. In the auxiliary mechanism, the second motor drives the second threaded rod to rotate, driving the sliding block to move along the slide rail. On the lifting mechanism side, fixed rods are provided on the fixed blocks fixedly connected on both sides of the mounting seat, and a transmission wheel is movably connected to the fixed rod. At the same time, a transmission rack is fixedly connected to the side of the mounting groove close to the slide rail, and the transmission rack and the transmission wheel are meshed with each other, and the transmission wheel is also meshed with the sliding frame where the sliding block is located. When the sliding block of the auxiliary mechanism moves, due to the meshing relationship between the rack structure of the sliding block and the transmission wheel, the transmission wheel will be driven to rotate on the fixed rod, and the transmission wheel will be meshed with the transmission rack in the mounting groove. Based on this series of meshing transmission, the transmission wheel will roll along the transmission rack, thereby driving the movement of the components connected thereto, thereby converting the movement of the sliding block of the auxiliary mechanism into the action of the relevant components in the lifting mechanism.

[0014] The lifting plate is supported by the rotating frame and the lifting plate is lifted up and the lifting plate is lifted up to a certain height, thereby meeting the requirements of the lifting plate height adjustment during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic diagram of the structure of a welding tool for a copper slurry metal alumina ceramic substrate.

[0016] Figure 2 The figure is a top view of a welding tool for a copper slurry metal alumina ceramic substrate.

[0017] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction.

[0018] Figure 4 The figure is a schematic diagram of the structure of the auxiliary mechanism in a welding tool for a copper slurry metal alumina ceramic substrate.

[0019] Figure 5 for Figure 3 A is a schematic diagram of the partially enlarged structure of FIG.

[0020] Figure 6 The present invention is a schematic diagram of the cooperation between the first threaded rod and the threaded sleeve in a welding tool auxiliary mechanism for a copper slurry metal alumina ceramic substrate.

[0021] Figure 7 The present invention is a schematic diagram of the structure of a guide groove in a driving part in a welding tool auxiliary mechanism for a copper slurry metal alumina ceramic substrate.

[0022] Figure 8 The present invention is a structural schematic diagram of a limiting mechanism in a welding tool for a copper slurry metal alumina ceramic substrate.

[0023] Fig. 9 The figure is a schematic diagram of the structure of a lifting mechanism in a welding tool for a copper slurry metal alumina ceramic substrate.

[0024] Fig.10 The present invention is a structural schematic diagram of a limit plate in a limit mechanism of a welding tool for a copper slurry metal alumina ceramic substrate.

[0025] Fig.11 The figure is a schematic diagram of the cooperation between the rotating disk and the transmission rod in a limiting mechanism of a welding tool for a copper slurry metal alumina ceramic substrate.

[0026] In the figure: 1, main body; 2, mounting groove; 3, supporting leg; 4, lifting platform; 5, limiting mechanism; 501, mounting seat; 502, guide rod; 503, fixing frame; 504, limiting seat; 505, rotating groove; 506, limiting plate; 507, transmission plate; 508, transmission rod; 509, limiting rod; 510, rotating shaft; 511, first motor; 512, rotating disk; 6, storage cover; 7, welding assembly; 8, auxiliary mechanism; 801, first synchronous wheel; 802, synchronous belt; 803, first thread Rod; 804, second threaded rod; 805, slide rail; 806, second motor; 807, second synchronous wheel; 808, driving member; 809, guide groove; 810, threaded sleeve; 811, guide block; 812, sliding block; 813, fan; 9, lifting mechanism; 901, lifting plate; 902, transmission rack; 903, fixed block; 904, fixed rod; 905, transmission wheel; 906, transmission block; 907, rotating frame; 908, movable frame; 909, protrusion; 910, slide groove; 10, base plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1

[0029] Reference Figure 1-Figure 7 , this embodiment provides a welding tool for a copper paste metal alumina ceramic substrate, including a main body 1, a mounting groove 2, a lifting platform 4, a limiting mechanism 5, an auxiliary mechanism 8 and a lifting mechanism 9, wherein the four corners of the bottom of the main body 1 are fixedly connected with support legs 3, and a mounting groove 2 is opened inside the main body 1, and an auxiliary mechanism 8 is arranged inside the mounting groove 2, and the limiting mechanism 5 is installed on the auxiliary mechanism 8, and a lifting mechanism 9 is symmetrically arranged on one side of the mounting groove 2, a storage cover 6 is detachably installed on the upper surface of the main body 1, and a lifting platform 4 is fixedly connected to the side of the main body 1 close to the storage cover 6, and a welding assembly 7 is slidably connected to the lifting platform 4; In this embodiment, specifically, the auxiliary mechanism 8 includes a first synchronous wheel 801, a synchronous belt 802, a first threaded rod 803, a second threaded rod 804, a slide rail 805, a second motor 806, a second synchronous wheel 807, a driving member 808, a guide groove 809, a threaded sleeve 810, a guide block 811, a sliding block 812 and a fan 813. A second motor 806 is embedded in one side of the installation groove 2, and the output end of the second motor 806 is fixedly connected to the second threaded rod 804, and the slide rail 805 is fixedly connected to both sides of the second threaded rod 804 in the installation groove 2, and the sliding block 812 is movably connected to the slide rail 805 and the second threaded rod 804, and the first threaded rod 803 is movably connected above the second threaded rod 804 in the installation groove 2, and the first synchronous wheel 801 and the second synchronous wheel 807 are respectively arranged on one side of the first threaded rod 803 and the second threaded rod 804, and a synchronous belt 802 is sleeved between the first synchronous wheel 801 and the second synchronous wheel 807; The first threaded rod 803 is located on the limiting seat 504, and a driving member 808 is movably connected between the first threaded rod 803 and the limiting seat 504. A guide groove 809 is provided on the inner surface of the driving member 808. A threaded sleeve 810 is movably connected inside the driving member 808. A guide block 811 is provided on the side of the threaded sleeve 810 close to the guide groove 809. The guide block 811 is located in the guide groove 809, and the threads of the threaded sleeve 810 and the first threaded rod 803 are matched with each other. A fan 813 is connected to the fixed rod 904 on the side of the driving member 808 away from the first threaded rod 803. The surface of the fan 813 is provided with a plurality of through holes at equal distances, the through holes cooperate with the surface of the substrate 10, and the fan 813 is electrically connected to an external power source.

[0030] When the second motor 806 is started, its output end will drive the second threaded rod 804 fixedly connected thereto to rotate. In the installation groove 2, a second synchronous wheel 807 is provided on one side of the second threaded rod 804, and a first synchronous wheel 801 is provided on one side of the first threaded rod 803 located above the second threaded rod 804. A synchronous belt 802 is sleeved between the first synchronous wheel 801 and the second synchronous wheel 807. With the transmission effect of the synchronous belt 802, the first threaded rod 803 can rotate at the same speed and direction as the second threaded rod 804. In the installation groove 2, since the sliding block 812 and the second threaded rod 804 are threadedly connected, under the guidance of the slide rail 805, the sliding block 812 will move linearly along the direction of the slide rail 805, and the synchronous rotation of the first threaded rod 803 also further ensures the coordination and stability of the entire transmission process, making the movement of the sliding block 812 more stable. Smoothly and orderly, the first threaded rod 803 is located on the limit seat 504. When the first threaded rod 803 rotates driven by the synchronous belt 802, based on the thread matching relationship, the threaded sleeve 810 will produce axial displacement movement along the first threaded rod 803, and because of the limiting guiding effect of the guide block 811 in the guide groove 809, the entire driving member 808 is driven to perform corresponding linear rotation along the axial direction of the first threaded rod 803. Therefore, when the driving member 808 moves in the above process, the fan 813 will also move synchronously, and the fan 813 itself is electrically connected to the external power supply and can be powered on and work normally. A plurality of through holes are equidistantly arranged on the surface of the fan 813, and these through holes cooperate with the surface of the substrate 10. When the fan 813 is working, the through holes can be used to ventilate the surface of the substrate 10, dissipate heat or blow away impurities generated during welding, etc., depending on the actual needs in the welding process.

[0031] Example 2

[0032] Reference Figure 8-Figure 11 This embodiment is based on the previous embodiment, and is different from the previous embodiment in that the limiting mechanism 5 includes a mounting seat 501, a guide rod 502, a fixing frame 503, a limiting seat 504, a rotating groove 505, a limiting plate 506, a transmission plate 507, a transmission rod 508, a limiting rod 509, a rotating shaft 510, a first motor 511 and a rotating disk 512, and the upper side of the sliding block 812 is fixedly connected to the mounting seat 501, and the upper side of the mounting seat 501 is symmetrically provided with a guide rod 50 2. The two sides of the guide rod 502 are movably connected with the fixing frame 503, and the lower part of the fixing frame 503 is fixedly connected with the transmission plate 507, and the mounting seat 501 is provided with a first motor 511 inside, and the output end of the first motor 511 is fixedly connected with the rotating disk 512, and the two sides of the rotating disk 512 are movably connected with the transmission rod 508, and the side of the transmission rod 508 away from the rotating disk 512 is movably connected with the transmission plate 507, and the upper side of the fixing frame 503 is fixedly connected with the limit seat 504; The upper side of the limit seat 504 is symmetrically provided with a rotation groove 505, in which a rotation shaft 510 is movably connected, and the rotation groove 505 is movably connected to the limit plate 506 through the rotation shaft 510, and a limit rod 509 is symmetrically arranged on the lower side of the limit plate 506, and the limit rod 509 is an arc-shaped structure, and the limit rod 509 is located in the rotation groove 505; When the first motor 511 is started, the output end of the motor will drive the rotating disk 512 fixedly connected thereto to rotate. As the rotating disk 512 rotates, the transmission rod 508 will perform a corresponding swinging motion like a connecting rod mechanism, and then drive the fixing frame 503 to move along the guide rod 502 symmetrically arranged on the upper side of the mounting seat 501 through the transmission plate 507. A rotating groove 505 is symmetrically opened on the upper side of the limit seat 504. The rotating groove 505 is movably connected to the limit plate 506 through the rotating shaft 510. When the fixing frame 503 moves driven by the transmission rod 508, the limit seat 504 will also move to the corresponding position synchronously. The limiting rod 509 with an arc-shaped structure symmetrically arranged on the lower side of the limiting plate 506 is located in the rotating groove 505. This structural design allows the limiting plate 506 to rotate around the rotating axis 510 at a certain angle. When the workpiece needs to be limited, after the limiting seat 504 moves to a suitable position, the workpiece will contact the limiting plate 506. The blocking effect of the limiting plate 506 and the limiting rod 509 can be used to limit the workpiece from multiple directions, limiting the translation of the workpiece in the plane and limiting its rotation to a certain extent, thereby ensuring that the workpiece can be stably in the set position during the welding process, and ensuring that the welding operation can be carried out accurately and smoothly.

[0033] Example 3

[0034] Reference Figure 5 , Figure 8 and Fig. 9 , this embodiment is based on the previous embodiment, and is different from the previous embodiment in that the lifting mechanism 9 includes a lifting plate 901, a transmission rack 902, a fixed block 903, a fixed rod 904, a transmission wheel 905, a transmission block 906, a rotating frame 907, a movable frame 908 and a protrusion 909, and the inside of the mounting groove 2 is provided with a slide groove 910 on both sides close to the second motor 806, and the inside of the slide groove 910 is slidably connected with the movable frame 908, the lower side of the sliding frame is a rack structure, and the upper side of the sliding frame is fixedly connected with a protrusion 909, and one side of the slide groove 910 is fixedly connected with a rotating frame 907, and the lifting plate 901 is movably connected to the rotating frame 907, and the lifting plate 901 is fixedly connected to the side of the rotating frame 907 close to the lifting plate 901. The transmission block 906 and the protrusion 909 cooperate with each other; The mounting seat 501 is fixedly connected with fixed blocks 903 on both sides, and the fixed blocks 903 are provided with fixed rods 904, and the fixed rods 904 are movably connected with transmission wheels 905, and a transmission rack 902 is fixedly connected to one side of the mounting groove 2 close to the slide rail 805, and the transmission rack 902 and the transmission wheel 905 are meshed with each other, and the transmission wheel 905 and the sliding frame are meshed with each other; A gasket is provided on one side of the lifting plate 901 away from the rotating frame 907 . The gasket is made of rubber material. A substrate 10 is placed on the limiting seat 504 . The lifting plate 901 and the substrate 10 cooperate with each other.

[0035] The power transmission of the lifting mechanism 9 is related to the movement of the sliding block 812 in the auxiliary mechanism 8. In the auxiliary mechanism 8, the second motor 806 drives the second threaded rod 804 to rotate, driving the sliding block 812 to move along the slide rail 805. On the lifting mechanism 9 side, the fixed blocks 903 fixedly connected on both sides of the mounting seat 501 are provided with fixed rods 904, and the fixed rods 904 are movably connected to the transmission wheel 905. At the same time, a transmission rack 902 is fixedly connected to one side of the mounting groove 2 close to the slide rail 805. The transmission rack 902 and the transmission wheel 905 are meshed with each other, and the transmission The wheel 905 is also meshed with the sliding frame where the sliding block 812 is located. When the sliding block 812 of the auxiliary mechanism 8 moves, due to the meshing relationship between the rack structure of the sliding block 812 and the transmission wheel 905, the transmission wheel 905 will be driven to rotate on the fixed rod 904, and the transmission wheel 905 will be meshed with the transmission rack 902 in the installation groove 2. Based on this series of meshing transmission, the transmission wheel 905 will roll along the transmission rack 902, and then drive the parts connected thereto to move, so as to convert the movement of the sliding block 812 of the auxiliary mechanism 8 into the action of the relevant parts in the lifting mechanism 9; Slide grooves 910 are provided on both sides of the installation groove 2 near the second motor 806. The movable frame 908 is slidably connected inside the slide grooves 910, and the lower side of the movable frame 908 is a rack structure, which is meshed with the transmission wheel 905. During the rotation of the transmission wheel 905, the movable frame 908 will be driven to slide linearly along the slide grooves 910. The upper side of the movable frame 908 is fixedly connected to a protrusion 909, and the protrusion 909 will move synchronously with the sliding of the movable frame 908 to prepare for the subsequent action of the lifting plate 901. The protrusion 909 on the movable frame 908 and the transmission block 906 of the lifting plate 901 They cooperate with each other. When the movable frame 908 slides along the slide groove 910 under the above-mentioned transmission action, the protrusion 909 will push the transmission block 906. Since the transmission block 906 is pushed by the protrusion 909, and the lifting plate 901 is supported and rotated by the rotating frame 907, under the action of such force, the lifting plate 901 will rotate around the rotating frame 907 to achieve an upward lifting action away from the side of the rotating frame 907, thereby lifting the substrate 10 upward to a certain height, meeting the demand for height adjustment of the substrate 10 during welding, and facilitating the unloading of the substrate 10.

[0036] Example 4

[0037] A method for welding a copper slurry metal alumina ceramic substrate as claimed in any one of claims 1 to 8, comprising the following steps: S1: Start the second motor 806 of the auxiliary mechanism 8 to drive the second threaded rod 804 to rotate, and guide the slide rail 805 to make the sliding block 812 move linearly. At the same time, the first threaded rod 803 is rotated synchronously through the synchronous belt 802 to drive the auxiliary mechanism 8 and the limiting mechanism 5 to move to the initial position suitable for placing the substrate; S2: Start the first motor 511 of the limit mechanism 5, the rotating disk 512 rotates to drive the transmission rod 508 to swing, so that the fixed frame 503 moves along the guide rod 502, accurately defines the direction, drives the limit seat 504 and the limit plate 506 to fine-tune, so that the limit plate 506 fits the substrate tightly, and accurately positions the substrate 10; S3: The first threaded rod 803 rotates to make the driving member 808 move axially, driving the fan 813 to be in place and then connected to the power supply. The through hole of the fan 813 is aligned with the surface of the substrate to ventilate and dissipate heat, blow away smoke and prevent impurities from gathering, thus creating a welding environment; S4: The sliding block 812 of the auxiliary mechanism 8 moves to drive the transmission wheel 905 to rotate, driving the movable frame 908 to slide along the slide groove 910, and the protrusion 909 moves with it, pushing the transmission block 906 of the lifting plate 901, and the lifting plate 901 rotates around the rotating frame 907, and its rubber gasket contacts the substrate and lifts the substrate to the required height to meet the welding height requirement.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A welding tool for copper slurry metal alumina ceramic substrate, characterized in that: The invention comprises a main body (1), a mounting groove (2), a lifting platform (4), a limiting mechanism (5), an auxiliary mechanism (8) and a lifting mechanism (9), wherein the four corners of the bottom of the main body (1) are fixedly connected to support legs (3), and a mounting groove (2) is provided inside the main body (1), an auxiliary mechanism (8) is arranged inside the mounting groove (2), a limiting mechanism (5) is installed on the auxiliary mechanism (8), and a lifting mechanism (9) is symmetrically arranged on one side of the mounting groove (2), a storage cover (6) is detachably installed on the upper surface of the main body (1), and a lifting platform (4) is fixedly connected to a side of the main body (1) close to the storage cover (6), and a welding component (7) is slidably connected to the lifting platform (4); The auxiliary mechanism (8) comprises a first synchronous wheel (801), a synchronous belt (802), a first threaded rod (803), a second threaded rod (804), a slide rail (805), a second motor (806), a second synchronous wheel (807), a driving member (808), a guide groove (809), a threaded sleeve (810), a guide block (811), a sliding block (812) and a fan (813); the second motor (806) is embedded in one side of the installation groove (2); and the output end of the second motor (806) is fixedly connected to the second threaded rod (804). , and slide rails (805) are fixedly connected to both sides of the second threaded rod (804) in the installation groove (2), and sliding blocks (812) are movably connected to the slide rails (805) and the second threaded rod (804), and a first threaded rod (803) is movably connected above the second threaded rod (804) in the installation groove (2), and a first synchronous wheel (801) and a second synchronous wheel (807) are respectively arranged on one side of the first threaded rod (803) and the second threaded rod (804), and a synchronous belt (802) is sleeved between the first synchronous wheel (801) and the second synchronous wheel (807).

2. The welding tool for a copper slurry metal alumina ceramic substrate according to claim 1, characterized in that: The limiting mechanism (5) comprises a mounting seat (501), a guide rod (502), a fixing frame (503), a limiting seat (504), a rotating groove (505), a limiting plate (506), a transmission plate (507), a transmission rod (508), a limiting rod (509), a rotating shaft (510), a first motor (511) and a rotating disk (512); the upper side of the sliding block (812) is fixedly connected to the mounting seat (501); the upper side of the mounting seat (501) is symmetrically provided with a guide rod (502); two guide rods (502) are provided on the guide rods (502) The sides are movably connected to fixed frames (503), and the bottom of the fixed frames (503) are fixedly connected to transmission plates (507), and a first motor (511) is arranged inside the mounting seat (501), and the output end of the first motor (511) is fixedly connected to a rotating disk (512), and the two sides of the rotating disk (512) are movably connected to transmission rods (508), and the side of the transmission rod (508) away from the rotating disk (512) is movably connected to the transmission plate (507), and the upper side of the fixed frames (503) is fixedly connected to a limiting seat (504).

3. The welding tool for a copper slurry metal alumina ceramic substrate according to claim 2, characterized in that: A rotation groove (505) is symmetrically provided on the upper side of the limit seat (504), a rotation shaft (510) is movably connected in the rotation groove (505), the rotation groove (505) is movably connected to the limit plate (506) via the rotation shaft (510), and a limit rod (509) is symmetrically provided on the lower side of the limit plate (506), the limit rod (509) is in an arc-shaped structure, and the limit rod (509) is located in the rotation groove (505).

4. The welding tool for a copper slurry metal alumina ceramic substrate according to claim 3, characterized in that: The first threaded rod (803) is located on the limiting seat (504), and a driving member (808) is movably connected between the first threaded rod (803) and the limiting seat (504). A guide groove (809) is provided on the inner surface of the driving member (808), and a threaded sleeve (810) is movably connected inside the driving member (808). A guide block (811) is provided on a side of the threaded sleeve (810) close to the guide groove (809), and the guide block (811) is located in the guide groove (809). The threads of the threaded sleeve (810) and the first threaded rod (803) cooperate with each other, and a fan (813) is connected to a fixed rod (904) on a side of the driving member (808) away from the first threaded rod (803).

5. The welding tool for the copper slurry metal alumina ceramic substrate according to claim 4, characterized in that: The lifting mechanism (9) comprises a lifting plate (901), a transmission rack (902), a fixed block (903), a fixed rod (904), a transmission wheel (905), a transmission block (906), a rotating frame (907), a movable frame (908) and a protrusion (909). Slide grooves (910) are provided on both sides of the installation groove (2) close to the second motor (806). The movable frame (908) is slidably connected inside the slide groove (910). The lower side of the sliding frame is a rack structure, and the upper side of the sliding frame is fixedly connected to the protrusion (909). One side of the slide groove (910) is fixedly connected to the rotating frame (907). The lifting plate (901) is movably connected to the rotating frame (907). The lifting plate (901) is fixedly connected to the transmission block (906) on one side of the lifting plate (901) close to the rotating frame (907). The transmission block (906) and the protrusion (909) cooperate with each other.

6. A welding tool for a copper slurry metal alumina ceramic substrate according to claim 5, characterized in that: The mounting seat (501) is fixedly connected to fixed blocks (903) on both sides, and the fixed blocks (903) are each provided with a fixed rod (904), and the fixed rod (904) is movably connected to a transmission wheel (905), and a transmission rack (902) is fixedly connected to one side of the mounting groove (2) close to the slide rail (805), and the transmission rack (902) and the transmission wheel (905) are meshed with each other, and the transmission wheel (905) and the sliding frame are meshed with each other.

7. The welding tool for a copper slurry metal alumina ceramic substrate according to claim 5, characterized in that: A gasket is provided on the side of the lifting plate (901) away from the rotating frame (907), the gasket is made of rubber material, and a base plate (10) is placed on the limiting seat (504), and the lifting plate (901) and the base plate (10) cooperate with each other.

8. The welding tool for a copper slurry metal alumina ceramic substrate according to claim 4, characterized in that: The surface of the fan (813) is provided with a plurality of through holes at equal distances, the through holes cooperate with the surface of the substrate (10), and the fan (813) is electrically connected to an external power source.

9. A welding method for a copper slurry metal alumina ceramic substrate as claimed in any one of claims 1 to 8, characterized in that: The steps include: S1: starting the second motor (806) of the auxiliary mechanism (8) to drive the second threaded rod (804) to rotate, and with the help of the guide rail (805), the sliding block (812) moves linearly, and at the same time, the first threaded rod (803) rotates synchronously through the synchronous belt (802), driving the auxiliary mechanism (8) and the limiting mechanism (5) to move to the initial position suitable for placing the substrate; S2: starting the first motor (511) of the limit mechanism (5), causing the rotating disk (512) to rotate and drive the transmission rod (508) to swing, so that the fixed frame (503) moves along the guide rod (502), accurately defines the direction, and drives the limit seat (504) and the limit plate (506) to be fine-tuned, so that the limit plate (506) fits tightly to the substrate, and accurately positions the substrate (10); S3: The first threaded rod (803) rotates to cause the driving member (808) to move axially, driving the fan (813) to be in place and then connected to the power supply. The through hole of the fan (813) is aligned with the surface of the substrate to ventilate and dissipate heat, blow away smoke and prevent impurities from gathering, thereby creating a welding environment; S4: The sliding block (812) of the auxiliary mechanism (8) moves to drive the transmission wheel (905) to rotate, driving the movable frame (908) to slide along the slide groove (910), and the protrusion (909) follows, pushing the transmission block (906) of the lifting plate (901), and the lifting plate (901) rotates around the rotating frame (907), and its rubber gasket contacts the substrate and lifts the substrate to the required height to meet the welding height requirement.

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