Copper foil diffusion welding machine

Abstract

The utility model relates to the technical field of copper foil welding, and discloses a copper foil diffusion welding machine which comprises a rack, a heating mechanism, a pressing mechanism and a detection mechanism. A workbench is arranged in the middle of the rack; a fixed table extending outwards is arranged at the top end of the rack; the heating mechanism comprises a lower heating jig and an upper heating jig; the lower heating jig is arranged on the workbench; the upper heating jig is arranged on the lower heating jig; the upper heating jig and the lower heating jig are used for welding a plurality of copper foils; the downward pressing mechanism comprises a downward pressing driving module and a downward pressing head; the pressing driving module is arranged at the top end of the fixed table; the lower pressing head is arranged at the bottom end of the lower pressing driving module, and the middle of the lower pressing head penetrates through the center of the fixing table. The detection mechanism comprises a pressure sensor and a displacement sensor; the pressure sensor is arranged between the downward pressing driving module and the downward pressing head; the displacement sensor is arranged between the downward pressing driving module and the downward pressing head and located on the outer side of the pressure sensor.

Description

Technical Field

[0001] The utility model relates to the technical field of copper foil welding, in particular to a copper foil diffusion welding machine. Background Art

[0002] Diffusion bonding is a process in which, under certain temperatures and pressures, the surfaces being joined come into contact with each other, causing local microscopic plastic deformation to expand the contact between the surfaces. After a certain period of time, atoms in the bonding layer diffuse into each other, achieving a reliable overall connection. A copper foil diffusion bonding machine specifically welds the surfaces of multiple pieces of copper foil together.

[0003] Currently, existing copper foil diffusion welding machines typically use a servo motor to drive the drive cylinder to achieve precise position control to meet the high-precision requirements of the welding process. However, during the copper foil welding process, the belt between the servo motor and the drive cylinder is prone to expansion under high load, causing a deviation between the actual lowering position of the pressure head and the preset position, affecting the copper foil welding quality.

[0004] Therefore, a copper foil diffusion welding machine is urgently needed to solve the above problems. Utility Model Content

[0005] Based on the above, the purpose of the present invention is to provide a copper foil diffusion welding machine to solve the problem that the belt in the existing copper foil welding machine will expand under high load, causing the downward movement of the lower pressure head to produce errors.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A copper foil diffusion welding machine, comprising a frame, a heating mechanism, a pressing mechanism and a detection mechanism; a workbench is provided in the middle of the frame; a fixed platform extending outward is provided at the top of the frame; the heating mechanism comprises a lower heating jig and an upper heating jig; the lower heating jig is arranged on the workbench; the upper heating jig is arranged on the lower heating jig; the upper heating jig and the lower heating jig are used for welding multiple pieces of copper foil; the pressing mechanism comprises a pressing drive module and a pressing head; the pressing drive module is arranged at the top of the fixed platform; the pressing head is arranged at the bottom of the fixed platform The bottom end of the downward pressure driving module, and the middle part of the downward pressure head is inserted into the center of the fixed platform; the downward pressure driving module is used to drive the displacement of the downward pressure head and drive the upper heating jig to move toward the lower heating jig to abut; the detection mechanism includes a pressure sensor and a displacement sensor; the pressure sensor is arranged between the downward pressure driving module and the downward pressure head, and is used to monitor the downward pressure of the downward pressure head; the displacement sensor is arranged between the downward pressure driving module and the downward pressure head, and is located outside the pressure sensor, and is used to measure the displacement of the downward pressure head.

[0008] As a preferred solution for a copper foil diffusion welding machine, a first connecting plate is provided between the lower pressure head and the pressure sensor; one side of the first connecting plate is connected to the displacement sensor; a guide shaft is provided between the other side of the first connecting plate and the fixed platform; and the first connecting plate is slidably connected to the guide shaft.

[0009] As a preferred solution of the copper foil diffusion welding machine, a shaft sleeve is provided between the first connecting plate and the guide shaft; the shaft sleeve is sleeved on the guide shaft and is slidably connected to the guide shaft.

[0010] As a preferred solution for a copper foil diffusion welding machine, the displacement sensor is a grating ruler, and a reading head slidably connected to the grating ruler is provided on one side of the grating ruler; the reading head is fixedly connected to one side of the first connecting plate.

[0011] As a preferred solution for a copper foil diffusion welding machine, the downward pressure drive module includes a servo motor and a drive cylinder; the drive cylinder is arranged on the fixed table, and the output end of the drive cylinder is connected to the downward pressure head; the servo motor is arranged in parallel on one side of the drive cylinder, and the servo motor and the input end of the drive cylinder are connected through a belt.

[0012] As a preferred solution for a copper foil diffusion welding machine, a fixing frame is provided between the driving cylinder and the fixing table, and the fixing frame has a U-shaped structure; the displacement sensor is located between the top of the fixing frame and the fixing table, and the displacement sensor is respectively arranged perpendicular to the fixing frame and the fixing table.

[0013] As a preferred solution for a copper foil diffusion welding machine, a power box and a transformer are provided on the frame; the power box is provided on one side of the frame; the transformer is provided on the workbench and is located inside the heating mechanism; the power box is electrically connected to the transformer; and the transformer is respectively connected to the upper heating jig and the lower heating jig.

[0014] As a preferred solution for a copper foil diffusion welding machine, the upper heating jig and the lower heating jig have the same structure; the lower heating jig includes a lower heating core, a lower heating seat and two sets of limit assemblies; the lower heating core is arranged on the lower heating seat; the two sets of limit assemblies are symmetrically arranged on both sides of the lower heating seat, and the limit assemblies are connected to the lower heating core; the lower heating seat is electrically connected to the transformer.

[0015] As a preferred solution for a copper foil diffusion welding machine, the limit assembly includes a mounting frame, a limit cylinder and a limit seesaw; the mounting frame is arranged on one side of the lower heating seat; the limit cylinder is arranged at the bottom end of the mounting frame; the limit seesaw is arranged at the top end of the mounting frame; one end of the limit seesaw is connected to the lower heating mold core, and the other end is connected to the output end of the limit cylinder, and the middle part of the limit seesaw is connected to the mounting frame by screws.

[0016] As a preferred solution of the copper foil diffusion welding machine, an infrared temperature sensor is provided on one side of the workbench; and an adjustment seat is provided between the infrared temperature sensor and the workbench.

[0017] The beneficial effects of the utility model are:

[0018] By setting up a detection mechanism, when the copper foil is welded, the downward pressure drive module is started, and the downward pressure drive module drives the downward pressure head to move downward, and the lower pressure head drives the upper heating jig close to the lower heating jig and abuts against the lower heating jig. During the downward movement, the displacement of the lower pressure head is monitored by the displacement sensor, so that the staff can understand whether the lower pressure head is pressed into place. The pressure sensor is also used to synchronously monitor the pressure of the lower pressure head, and further analyze whether the downward pressure is applied after the lower pressure head is pressed into place. Finally, a comprehensive analysis is performed based on the monitoring data of the displacement sensor and the pressure sensor to determine whether the upper heating jig and the lower heating jig are welded in place, thereby realizing fine monitoring of the welding process of multiple pieces of copper foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a copper foil diffusion welding machine provided by the utility model;

[0020] Figure 2 This is a partial structural diagram of a copper foil diffusion welding machine provided by the utility model;

[0021] Figure 3 for Figure 2 A magnified schematic diagram of the middle part;

[0022] Figure 4 This is a schematic diagram of the overall structure of the heating mechanism provided by the utility model;

[0023] Figure 5 This is a schematic diagram of the overall structure of the lower heating fixture provided by the utility model;

[0024] Figure 6 This is a schematic diagram of the overall structure of the limit assembly provided by the utility model.

[0025] Among them, the reference numerals in the figures are:

[0026] 10. Rack; 11. Workbench; 12. Fixed table; 13. Power box; 14. Transformer; 20. Upper heating fixture; 21. Lower heating fixture; 211. Lower heating core; 212. Lower heating seat; 22. Mounting frame; 23. Limit cylinder; 24. Limit rocker; 25. Infrared temperature sensor; 26. Adjustment seat; 30. Down-pressure drive module; 301. Servo motor; 302. Drive cylinder; 31. Down-pressure head; 32. Fixed frame; 40. Pressure sensor; 41. Displacement sensor; 411. Reading head; 42. First connecting plate; 43. Guide shaft; 44. Bushing. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0028] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0030] In the description of this embodiment, the terms "up", "down", "left", "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0031] In the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0032] In one embodiment of the present invention, Figure 1-6 As shown, a copper foil diffusion welding machine is provided, comprising a frame 10, a heating mechanism, a pressing mechanism, and a detection mechanism. A workbench 11 is provided in the middle of the frame 10. A fixed platform 12 extending outward is provided at the top of the frame 10. The heating mechanism comprises a lower heating jig 21 and an upper heating jig 20. The lower heating jig 21 is disposed on the workbench 11. The upper heating jig 20 is disposed on the lower heating jig 21. The upper heating jig 20 and the lower heating jig 21 are used to weld multiple pieces of copper foil. The pressing mechanism comprises a pressing drive module 30 and a pressing head 31. The pressing drive module 30 is disposed at the top of the fixed platform 12. The pressing head 31 is disposed at the bottom of the pressing drive module, and the middle portion of the pressing head 31 is inserted into the center of the fixed platform 12. The pressing drive module 30 is used to drive the pressing head 31 to move and drive the upper heating jig 20 to move and abut against the lower heating jig 21. The detection mechanism comprises a pressure sensor 40 and a displacement sensor 41. The pressure sensor 40 is provided between the downward pressure driving module 30 and the downward pressure head 31 to monitor the downward pressure of the downward pressure head 31. The displacement sensor 41 is provided between the downward pressure driving module 30 and the downward pressure head 31 and outside the pressure sensor 40 to measure the displacement of the downward pressure head 31.

[0033] By setting up a detection mechanism, when the copper foil is welded, the downward pressure driving module 30 is started, and the downward pressure driving module 30 drives the lower pressure head 31 to move downward, and the lower pressure head 31 drives the upper heating jig 20 to approach the lower heating jig 21 and abut against the lower heating jig 21. During the downward movement, the displacement of the lower pressure head 31 is monitored by the displacement sensor 41, so that the staff can understand whether the lower pressure head 31 is pressed into place. The pressure sensor 40 is also used to synchronously monitor the pressure of the lower pressure head 31, and further analyze whether the downward pressure is applied after the lower pressure head 31 is pressed into place. Finally, a comprehensive analysis is performed based on the monitoring data of the displacement sensor 41 and the pressure sensor 40 to determine whether the upper heating jig 20 and the lower heating jig 21 are welded into place, thereby realizing fine monitoring of the welding process of multiple pieces of copper foil.

[0034] Preferably, a first connecting plate 42 is provided between the pressure head 31 and the pressure sensor 40. One side of the first connecting plate 42 is connected to the displacement sensor 41. A guide shaft 43 is provided between the other side of the first connecting plate 42 and the fixed platform 12. The first connecting plate 42 is slidably connected to the guide shaft 43. The guiding effect of the guide shaft 43 improves the stability of the vertical movement of the first connecting plate 42, thereby improving the movement stability of the pressure head 31.

[0035] Furthermore, a sleeve 44 is provided between the first connecting plate 42 and the guide shaft 43. The sleeve 44 is sleeved on the guide shaft 43 and is slidably connected to the guide shaft 43. The guiding effect of the guide shaft 43 and the sleeve 44 improves the stability of the vertical movement of the first connecting plate 42, ensuring that the pressing head 31 can move stably.

[0036] Furthermore, the displacement sensor 41 is a linear scale with a reading head 411 slidably connected to one side of the linear scale. The reading head 411 is fixedly connected to one side of the first connecting plate 42. As the pressing head 31 moves, the reading head 411 cooperates with the linear scale to monitor the movement of the pressing head 31 and provide real-time feedback on the position of the pressing head 31. This allows the user to determine whether the pressing head 31 has reached its intended position, ensuring welding accuracy.

[0037] Preferably, the downward pressure drive module 30 includes a servo motor 301 and a drive cylinder 302. The drive cylinder 302 is arranged on the fixed platform 12, and the output end of the drive cylinder 302 is connected to the downward pressure head 31. The servo motor 301 is arranged in parallel on one side of the drive cylinder 302, and the servo motor 301 and the input end of the drive cylinder 302 are connected by a belt. In this embodiment, a reducer is provided on the output end of the servo motor 301, and the output end of the reducer is connected to the input end of the drive cylinder 302 through a belt. Start the servo motor 301, and under the action of the reducer, the speed of the corresponding load is matched, and the power is transmitted to the drive cylinder 302 through the belt, thereby driving the downward pressure head 31 and the upper heating jig 20 to approach the lower heating jig 21.

[0038] Furthermore, a U-shaped mounting bracket 32 ​​is provided between the drive cylinder 302 and the mounting platform 12. A displacement sensor 41 is positioned between the top of the mounting bracket 32 ​​and the mounting platform 12, and is positioned perpendicular to both the mounting bracket 32 ​​and the mounting platform 12. This vertical positioning of the displacement sensor 41 ensures that it can accurately monitor the displacement of the ram 31, improving measurement accuracy during the downward movement of the ram 31.

[0039] Preferably, a power supply box 13 and a transformer 14 are provided on the frame 10. The power supply box 13 is provided on one side of the frame 10. The transformer 14 is provided on the workbench 11 and is located on the inner side of the heating mechanism. The power supply box 13 is electrically connected to the transformer 14. The transformer 14 is connected to the upper heating fixture 20 and the lower heating fixture 21 at one point respectively. In this embodiment, a frequency converter and a frequency conversion controller are provided in the power supply box 13. When the equipment is working, the mains power converts the three-phase AC into two-phase AC through the frequency converter, and then the two-phase AC is stepped down through the transformer 14 so that the converted voltage is suitable for the conductive heating of the heating mechanism. At the same time, the power of the frequency converter is adjusted to the production requirements through the frequency conversion controller, so as to facilitate the control of the voltage of the equipment to adapt to different types of production and improve the production efficiency of the equipment.

[0040] Specifically, the upper heating jig 20 and the lower heating jig 21 have the same structure, so only the lower heating jig 21 is described in detail. The lower heating jig 21 includes a lower heating core 211, a lower heating seat 212 and two sets of limit assemblies. The lower heating core 211 is arranged on the lower heating seat 212. The two sets of limit assemblies are symmetrically arranged on both sides of the lower heating seat 212, and the limit assemblies are connected to the lower heating core 211. The lower heating seat 212 is electrically connected to the transformer 14. In this embodiment, a cooling plate is provided at the bottom end of the lower heating seat 212, and a plurality of sets of parallel water channels are provided in the cooling plate. The two ends of the water channels are connected to the external water supply device through water pipes respectively. The heat generated by the lower heating seat 212 during operation is heat exchanged through the plurality of water channels to prevent heat from being conducted to other positions of the frame 10. At the same time, when the machine is shut down, heat exchange can be carried out between the surface of the cooling plate and the lower heating seat 212, and the lower heating seat 212 and the lower heating core 211 are quickly cooled.

[0041] Furthermore, the position limiting assembly includes a mounting frame 22, a position limiting cylinder 23, and a position limiting rocker 24. The mounting frame 22 is located on one side of the lower heating base 212. The position limiting cylinder 23 is located at the bottom end of the mounting frame 22. One end of the position limiting rocker 24 is connected to the lower heating core 211, and the other end is connected to the output end of the position limiting cylinder 23. The middle portion of the position limiting rocker 24 is connected to the mounting frame 22 via screws. When installing the lower heating mold core 211, the limiting rocker 24 is lifted by the limiting cylinder 23, so that the limiting rocker 24 is swung downward along the screw at the end away from the limiting cylinder 23. The limiting rocker 24 is embedded in the lower heating seat 212 and abuts against the lower heating seat 212. The end of the limiting rocker 24 away from the limiting cylinder 23 provides downward pressure on the lower heating seat 212, so that the lower heating mold core 211 is fixed on the lower heating seat 212 under the pressure of the limiting rocker 24; when disassembling the lower heating mold core 211, the limiting cylinder 23 is driven to move downward to eliminate the downward pressure of the limiting rocker 24 on the lower heating mold core 211, and the disassembly of the lower heating mold core 211 can be completed.

[0042] Furthermore, an infrared temperature sensor 25 is installed on one side of the workbench 11. An adjustment base 26 is provided between the infrared temperature sensor 25 and the workbench 11. The infrared temperature sensor 25 detects the temperature of the lower heating core 211, allowing staff to understand the actual temperature of the lower heating core 211 and determine the temperature accordingly, thereby making appropriate adjustments.

[0043] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention is disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the above-disclosed technical contents without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention, which do not depart from the content of the technical solution of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A copper foil diffusion bonding machine, characterized in that: include: A frame, wherein a workbench is provided in the middle of the frame; a fixing platform extending outward is provided at the top of the frame; A heating mechanism, comprising a lower heating jig and an upper heating jig; the lower heating jig is arranged on the workbench; the upper heating jig is arranged on the lower heating jig; the upper heating jig and the lower heating jig are used for welding multiple pieces of copper foil; A pressing mechanism, comprising a pressing drive module and a pressing head; the pressing drive module is disposed at the top of the fixed platform; the pressing head is disposed at the bottom of the pressing drive module, and the middle portion of the pressing head is disposed through the center of the fixed platform; the pressing drive module is used to drive the pressing head to move and drive the upper heating jig to move toward the lower heating jig to abut against the lower heating jig; The detection mechanism includes a pressure sensor and a displacement sensor; the pressure sensor is arranged between the downward pressure drive module and the downward pressure head, and is used to monitor the downward pressure of the downward pressure head; the displacement sensor is arranged between the downward pressure drive module and the downward pressure head, and is located outside the pressure sensor, and is used to measure the displacement of the downward pressure head.

2. The copper foil diffusion bonding machine according to claim 1, characterized in that A first connecting plate is provided between the pressure head and the pressure sensor; one side of the first connecting plate is connected to the displacement sensor; a guide shaft is provided between the other side of the first connecting plate and the fixed platform; the first connecting plate is slidably connected to the guide shaft.

3. The copper foil diffusion bonding machine according to claim 2, characterized in that: A shaft sleeve is provided between the first connecting plate and the guide shaft; the shaft sleeve is sleeved on the guide shaft and is slidably connected to the guide shaft.

4. The copper foil diffusion bonding machine according to claim 3, characterized in that The displacement sensor is a grating ruler, and a reading head is provided on one side of the grating ruler, which is slidably connected to the grating ruler; the reading head is fixedly connected to one side of the first connecting plate.

5. The copper foil diffusion bonding machine according to claim 1, characterized in that The downward pressure driving module includes a servo motor and a driving cylinder; the driving cylinder is arranged on the fixed platform, and the output end of the driving cylinder is connected to the downward pressure head; the servo motor is arranged in parallel on one side of the driving cylinder, and the servo motor and the input end of the driving cylinder are connected through a belt.

6. The copper foil diffusion bonding machine according to claim 5, characterized in that A fixing frame is provided between the driving cylinder and the fixing platform, and the fixing frame is in a U-shaped structure; the displacement sensor is located between the top of the fixing frame and the fixing platform, and the displacement sensor is respectively arranged perpendicular to the fixing frame and the fixing platform.

7. The copper foil diffusion bonding machine according to claim 1, characterized in that The frame is provided with a power box and a transformer; the power box is provided on one side of the frame; the transformer is provided on the workbench and is located inside the heating mechanism; the power box is electrically connected to the transformer; the transformer is respectively connected to the upper heating jig and the lower heating jig.

8. The copper foil diffusion bonding machine according to claim 7, characterized in that: The upper heating jig and the lower heating jig have the same structure; the lower heating jig includes a lower heating core, a lower heating seat and two sets of limit assemblies; the lower heating core is arranged on the lower heating seat; the two sets of limit assemblies are symmetrically arranged on both sides of the lower heating seat, and the limit assemblies are connected to the lower heating core; the lower heating seat is electrically connected to the transformer.

9. The copper foil diffusion bonding machine according to claim 8, characterized in that The limiting assembly includes a mounting frame, a limiting cylinder and a limiting rocker; the mounting frame is arranged on one side of the lower heating seat; the limiting cylinder is arranged at the bottom end of the mounting frame; one end of the limiting rocker is connected to the lower heating mold core, and the other end is connected to the output end of the limiting cylinder, and the middle part of the limiting rocker is connected to the mounting frame by screws.

10. The copper foil diffusion bonding machine according to claim 9, characterized in that An infrared temperature sensor is provided on one side of the workbench; an adjustment seat is provided between the infrared temperature sensor and the workbench.

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