A steam chamber current-assisted connection forming device and its use method

Abstract

The present invention provides a steam chamber current-assisted connection forming device and a method of use, which relates to the technical field of steam chambers. The steam chamber current-assisted connection forming device includes an upper seat plate, a lower seat plate, a support, an assembly seat, a transverse movement mechanism, a longitudinal movement mechanism, a hydraulic cylinder, a fixed block, a forging punch, a slider, a copper terminal, a power-connecting copper plate, and a DC power supply. The support is vertically connected between the upper seat plate and the lower seat plate, the longitudinal movement mechanism is arranged on the lower seat plate, the transverse movement mechanism is arranged on the longitudinal movement mechanism, the assembly seat is arranged on the transverse movement mechanism, the hydraulic cylinder is connected to the upper seat plate, the fixed block is connected to the telescopic end of the hydraulic cylinder, the forging punch and the slider are spaced apart on the fixed block, the copper terminal is connected to the slider, and the power-connecting copper plate is arranged on the assembly seat. Compared with the existing technology, the steam chamber current-assisted connection forming device of the present invention can realize efficient and reliable connection forming of large-area steam chambers without damaging the mechanical properties of the aluminum alloy substrate.

Description

Technical Field

[0001] The present invention relates to the technical field of steam chambers, and in particular to a steam chamber current-assisted connection forming device and a use method thereof. Background Art

[0002] As microelectronic devices, such as chips, continue to evolve toward higher power, miniaturization, and integration, the need for heat dissipation is becoming increasingly critical. Vapor chambers, a derivative of heat pipes, offer technical advantages such as three-dimensional thermal conductivity, high maximum heat flux density, and stable operation. They have become the primary passive method for dissipating heat from high-power microelectronic devices. The fabrication of lightweight aluminum alloy vapor chambers is crucial for dissipating heat from chip devices. However, current technology struggles to maintain weld strength in aluminum alloy vapor chambers, making high-strength vapor chamber welding a key technical challenge.

[0003] Currently, welding of large steam chambers is primarily accomplished using diffusion welding and laser welding. Both processes require expensive specialized equipment or complex processes, resulting in high costs and low efficiency. Diffusion welding requires heating the entire steam chamber to very high temperatures and for an extremely long time, significantly reducing the overall mechanical properties and strength of the steam chamber. Furthermore, aluminum alloys have a low laser absorption rate, making it difficult to ensure the quality and strength of the welded joint. Summary of the Invention

[0004] The problem to be solved by the present invention is: how to realize efficient and reliable connection and forming of large-area steam chambers without damaging the mechanical properties of the aluminum alloy substrate.

[0005] The present invention provides a steam chamber current-assisted connection forming device, comprising: an upper seat plate, a lower seat plate, a support, an assembly seat, a transverse movement mechanism, a longitudinal movement mechanism, a hydraulic cylinder, a fixed block, a forging punch, a slider, a copper terminal, a power connection copper plate and a DC power supply, wherein the support is vertically connected between the upper seat plate and the lower seat plate, the longitudinal movement mechanism is arranged on the lower seat plate, the transverse movement mechanism is arranged on the longitudinal movement mechanism, the assembly seat is arranged on the transverse movement mechanism, the assembly seat is used to install the steam chamber, and the hydraulic cylinder is connected to the upper seat plate. Plate, the fixed block is connected to the telescopic end of the hydraulic cylinder, the forging punch and the slider are arranged on the fixed block at intervals, and are used to respectively correspond to two different support columns on the steam chamber, the slider is used to slide up and down along the fixed block, the copper terminal is connected to the slider, the copper terminal is electrically connected to the positive pole of the DC power supply, the power copper plate is arranged on the assembly seat, and the power copper plate is used to contact the lower surface of the steam chamber, and the power copper plate is electrically connected to the negative pole of the DC power supply.

[0006] The steam chamber current-assisted connection forming device provided by the present invention has, compared with the prior art, but is not limited to the following beneficial effects:

[0007] The steam chamber current-assisted connection forming device of the present invention, when in use, first installs the steam chamber to be connected and formed on the assembly seat, so that the position of the steam chamber is fixed relative to the assembly seat, then moves the first support column on the steam chamber to the position directly below the slider on the fixed block by a transverse movement mechanism and / or a longitudinal movement mechanism, then drives the fixed block downward by a hydraulic cylinder, and slides the slider along the fixed block to press the first support column and electrically connect the copper terminal to the support column, so as to achieve a reliable connection for power return. Specifically, the copper terminal is connected to the slider, and the copper terminal and the positive pole of the DC power supply can be electrically connected by a wire. The copper plate for connecting electricity is set on the assembly seat, and the copper plate for connecting electricity is used to contact the lower surface of the steam chamber, and the copper plate for connecting electricity is electrically connected to the negative pole of the DC power supply by a wire. After the DC power supply is turned on and energized, current flows through the copper terminal, the slider and the support column in sequence, and the support column can be heated to a very high temperature under the action of the current, then the fixed block is driven upward by the hydraulic cylinder, and the next support column on the steam chamber is moved by the transverse movement mechanism and / or the longitudinal movement mechanism. The column moves to the position directly below the slider on the fixed block. At the same time, the forging punch on the fixed block is directly above the first supporting column that has just been electrically heated. That is, the forging punch and the slider act on two different supporting columns respectively. The forging punch is used to perform hot forging connection and forming on the corresponding supporting column, and the slider is used to electrically heat the corresponding supporting column to facilitate the subsequent forging punch to perform hot forging connection and forming on the supporting column. Then, the steam chamber is repeatedly moved to the target position through the transverse movement mechanism and / or the longitudinal movement mechanism until the hot forging connection and forming of all supporting columns are completed. Since the slider can slide up and down along the fixed block, when the fixed block moves downward to drive the forging punch to perform hot forging connection and forming on a supporting column, the slider will abut against other supporting columns to electrically heat the supporting column, and can gradually move up along the fixed block as the fixed block moves downward. Since the electric current heating efficiency is extremely high, the upper part of the supporting column can be heated to a very high temperature in just a few seconds, with little impact on the base material, which is conducive to ensuring the strength of the aluminum alloy steam chamber. Compared with the prior art, the steam chamber current-assisted connection and forming device of the present invention can achieve efficient and reliable connection and forming of large-area steam chambers without damaging the mechanical properties of the aluminum alloy substrate.

[0008] Optionally, the steam chamber current assisted connection forming device further includes a pressure plate and an insulating plate, wherein the pressure plate is connected to the telescopic end of the hydraulic cylinder, the insulating plate is connected to the lower end surface of the pressure plate, and the fixed block is connected to the lower end surface of the insulating plate.

[0009] Optionally, the overall shape of the slider is trapezoidal, and a trapezoidal groove that matches the shape of the slider is formed on the fixing block, and the slider is used to slide up and down along the trapezoidal groove.

[0010] Optionally, the steam chamber current assisted connection forming device also includes a spring, and a first through hole coaxially arranged with the trapezoidal groove is opened on the fixed block in the vertical direction, and the spring is arranged in the first through hole, the upper end of the spring is connected to the insulating plate, and the lower end of the spring is connected to the slider.

[0011] Optionally, the slider includes a first block and a second block that are separated, the first block is provided with a first semicircular groove, the second block is provided with a second semicircular groove, the first block and the second block are used for relative movement and contact with each other, so that the first semicircular groove and the second semicircular groove form a circular groove, and the upper end of the support column is used to extend into the circular groove and abut against the slider.

[0012] Optionally, a second through hole is opened in the horizontal direction on the fixing block, and the copper terminal is used to extend into the second through hole and be threadedly connected to the slider, and the aperture of the second through hole is larger than the axial diameter of the copper terminal.

[0013] Optionally, the steam chamber includes an upper cover plate, a lower support plate, and a plurality of support columns arranged between the upper cover plate and the lower support plate, the upper ends of the plurality of support columns all pass through the upper cover plate, and the upper cross-sectional size of the support columns is smaller than the lower cross-sectional size.

[0014] Optionally, the assembly seat includes a seat body and a limit block, the seat body is provided with a groove structure adapted to the shape of the lower support plate, the limit block is used to be detachably connected to the seat body by bolts, and the limit block is used to press the lower support plate into the groove structure.

[0015] Optionally, the longitudinal movement mechanism includes a first linear guide rail, a first linear guide groove, a support plate, a first lead screw, a first nut, a first motor, a first lead screw support seat and a first motor support seat, the first linear guide rail is laid on the lower seat plate along the longitudinal direction, the first linear guide groove is laid on the end surface of the support plate facing the lower seat plate along the longitudinal direction, the first linear guide groove is slidably connected to the first linear guide rail, the first lead screw support seat and the first motor support seat are connected to the lower seat plate at intervals, the first motor is connected to the first motor support seat, the first lead screw is connected to the first lead screw support seat, and the first motor is drivingly connected to the first lead screw, the first nut is threadedly connected to the first lead screw, and the first nut is connected to the support plate;

[0016] The transverse movement mechanism includes a second linear guide rail, a second linear guide groove, a second lead screw, a second nut, a second motor, a second lead screw support seat and a second motor support seat. The second linear guide rail is horizontally laid on the end surface of the support plate away from the lower seat plate, and the second linear guide groove is horizontally laid on the end surface of the assembly seat toward the support plate. The second linear guide groove is slidably connected to the second linear guide rail, the second lead screw support seat and the second motor support seat are connected to the support plate at intervals, the second motor is connected to the second motor support seat, the second lead screw is connected to the second lead screw support seat, and the second motor is drivingly connected to the second lead screw, the second nut is threadedly connected to the second lead screw, and the second nut is connected to the assembly seat.

[0017] In addition, the present invention also provides a method for using the steam chamber current-assisted connection forming device. Based on the steam chamber current-assisted connection forming device as described above, the method includes:

[0018] Step S1, assembling the steam chamber to be connected and formed on the assembly seat;

[0019] Step S2: Control the hydraulic cylinder downward to press the first support column position through the slider to achieve a reliable connection of power return, and then turn on the DC power supply to energize;

[0020] Step S3: Control the hydraulic cylinder to move upward, and move the steam chamber to the next support column position through the transverse movement mechanism or the longitudinal movement mechanism. At this time, two adjacent support column positions are respectively located directly below the slider and the forging punch;

[0021] Step S4: Control the hydraulic cylinder to move downward, and simultaneously achieve electrical heating of one of the support column positions and hot forging connection of the other support column position;

[0022] Step S5, repeat the above steps S3 and S4 until the hot forging connection forming of all support column positions is completed.

[0023] The method for using the steam chamber current-assisted connection forming device provided by the present invention has, compared with the prior art, but is not limited to the following beneficial effects:

[0024] The method for using the steam chamber current-assisted connection forming device described in this invention allows for localized hot forging of the support column during the entire steam chamber welding process. Based on the theory of plastic deformation, this method eliminates the significant thermal impact and resulting reduction in steam chamber strength seen with other welding methods. This method has virtually no impact on the substrate, enabling efficient and reliable large-area steam chamber connection forming without compromising the mechanical properties of the aluminum alloy substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front view of the mold opening of the steam chamber current-assisted connection forming device according to an embodiment of the present invention;

[0026] Figure 2 A side view of the mold closing of the steam chamber current-assisted connection forming device according to an embodiment of the present invention;

[0027] Figure 3 for Figure 1 A partial enlarged view of the middle part;

[0028] Figure 4 for Figure 1 A partial enlarged view of point B in the middle;

[0029] Figure 5 for Figure 2 A partial enlarged view of point C in the middle;

[0030] Figure 6 This is a top view of the steam chamber before welding according to an embodiment of the present invention;

[0031] Figure 7 This is a cross-sectional view of the steam chamber before welding according to an embodiment of the present invention;

[0032] Figure 8 This is a cross-sectional view of the steam chamber after welding according to an embodiment of the present invention;

[0033] Figure 9 This is a top view of the steam chamber after welding according to an embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 1. Upper seat plate; 2. Lower seat plate; 3. Pillar; 4. Assembly seat; 401. Seat body; 402. Limit block; 5. Transverse movement mechanism; 501. Second linear guide rail; 502. Second linear guide groove; 503. Second lead screw; 504. Second nut; 505. Second motor; 506. Second lead screw support seat; 507. Second motor support seat; 6. Longitudinal movement mechanism; 601. First linear guide rail; 602. First linear guide groove; 603. Support plate; 604. First lead screw; 605. First nut; 606. First motor; 607. First lead screw support seat; 608. A motor support seat; 7. Steam chamber; 701. Upper cover plate; 702. Lower support plate; 703. Support column; 704. Friction stir weld; 705. Hot forging weld; 8. Hydraulic cylinder; 9. Fixed block; 901. Second through hole; 10. Forging punch; 11. Slider; 1101. First block; 1102. Second block; 1103. First semicircular groove; 1104. Second semicircular groove; 12. Copper terminal; 13. Power supply copper plate; 14. DC power supply; 15. Press plate; 16. Insulating plate; 17. Spring; 18. Guide screw; 19. Stirring head. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0037] In the description of the present invention, the directions or positional relationships indicated by “up”, “down”, “left”, “right”, “top”, “bottom”, “front”, “back”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical connections; direct connections or indirect connections via an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0039] Throughout this specification, references to terms such as "an embodiment," "one embodiment," and "an implementation" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or implementation are included in at least one embodiment or implementation of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.

[0040] Moreover, the Z-axis in the accompanying drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis (that is, the direction of the arrow of the Z-axis) represents the top, and the negative direction of the Z-axis (that is, the direction opposite to the positive direction of the Z-axis) represents the bottom; the X-axis in the accompanying drawings represents the horizontal direction, that is, the left and right position, and the positive direction of the X-axis (that is, the direction of the arrow of the X-axis) represents the left, and the negative direction of the X-axis (that is, the direction opposite to the positive direction of the X-axis) represents the right; the Y-axis in the accompanying drawings represents the longitudinal direction, that is, the front and back position, and the positive direction of the Y-axis (that is, the direction of the arrow of the Y-axis) represents the front, and the negative direction of the Y-axis (that is, the direction opposite to the positive direction of the Y-axis) represents the back.

[0041] It should also be noted that the aforementioned Z-axis, X-axis, and Y-axis are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0042] like Figures 1 to 2 As shown, the steam chamber current assisted connection forming device of the embodiment of the present invention includes: an upper seat plate 1, a lower seat plate 2, a pillar 3, an assembly seat 4, a transverse movement mechanism 5, a longitudinal movement mechanism 6, a hydraulic cylinder 8, a fixed block 9, a forging punch 10, a slider 11, a copper terminal 12, a power copper plate 13 and a DC power supply 14, wherein the pillar 3 is vertically connected between the upper seat plate 1 and the lower seat plate 2, the longitudinal movement mechanism 6 is arranged on the lower seat plate 2, the transverse movement mechanism 5 is arranged on the longitudinal movement mechanism 6, the assembly seat 4 is arranged on the transverse movement mechanism 5, the assembly seat 4 is used to install the steam chamber 7, and the hydraulic cylinder 8 is connected to the upper seat Plate 1, the fixed block 9 is connected to the telescopic end of the hydraulic cylinder 8, the forging punch 10 and the slider 11 are arranged at intervals on the fixed block 9, and are used to respectively correspond to the two different support columns 703 on the steam chamber 7, the slider 11 is used to slide up and down along the fixed block 9, the copper terminal 12 is connected to the slider 11, the copper terminal 12 is electrically connected to the positive pole of the DC power supply 14, the power copper plate 13 is provided on the assembly seat 4, and the power copper plate 13 is used to contact the lower surface of the steam chamber 7, and the power copper plate 13 is electrically connected to the negative pole of the DC power supply 14.

[0043] In this embodiment, combined with the Figures 1 to 2 As shown, when the steam chamber current-assisted connection forming device of the present invention is used, the steam chamber 7 to be connected and formed is first installed on the assembly seat 4, so that the position of the steam chamber 7 is fixed relative to the assembly seat 4, and then the steam chamber 7 is connected and formed by the transverse movement mechanism 5 (used to drive the assembly seat 4 along the attachment Figure 1 X-axis direction) and / or longitudinal movement mechanism 6 (for driving the transverse movement mechanism 5 along the attached Figure 2The first support column 703 on the steam chamber 7 is moved to the bottom of the slider 11 on the fixed block 9 (movement in the Y-axis direction), and then the fixed block 9 is driven downward by the hydraulic cylinder 8. The slider 11 slides along the fixed block 9 to press the first support column 703 and electrically connect the copper terminal 12 to the support column 703 to achieve a reliable connection for power return. Specifically, the copper terminal 12 is connected to the slider 11, and the copper terminal 12 and the positive pole of the DC power supply 14 can be electrically connected through a wire. The power-connecting copper plate 13 is set on the assembly seat 4, and the power-connecting copper plate 13 is used to contact the lower surface of the steam chamber 7. The power-connecting copper plate 13 and the negative pole of the DC power supply 14 can be electrically connected through a wire. After the DC power supply 14 is turned on and energized, the current flows through the copper terminal 12 and the slider 11 in turn and acts on the support column 703 of the steam chamber 7. Under the action of the current, the upper part of the support column 703 can be heated to a very high temperature to facilitate subsequent hot forging; then the fixed block 7 is driven upward by the hydraulic cylinder 8, and the next support column 703 on the steam chamber 7 is moved to the bottom of the slider 11 on the fixed block 9 through the transverse mechanism 5 and / or the longitudinal mechanism 6. At the same time, the forging The forging punch 10 is located directly above the first support column 703 that has just been electrically heated, that is, the forging punch 10 and the slider 11 act on two different support columns 703 respectively. The forging punch 10 is used to hot forge and connect the corresponding support column 703, and the slider 11 is used to electrically heat the corresponding support column 703, so that the subsequent forging punch 10 can hot forge and connect the support column 703; then the steam chamber 7 is repeatedly moved to the target position through the transverse movement mechanism 5 and / or the longitudinal movement mechanism 6 until the hot forging connection forming of all support columns 703 is completed. In this way, by automatically controlling the actions of structures such as the transverse movement mechanism 5, the longitudinal movement mechanism 6 and the hydraulic cylinder 8, the efficiency of the hot forging connection forming of all support columns 703 can be effectively improved, thereby efficiently and reliably completing the connection forming process of the steam chamber 7. Moreover, since the slider 11 can slide up and down along the fixed block 9, when the fixed block 9 moves downward to drive the forging punch 10 to perform hot forging connection and forming on a support column 703, the slider 11 will abut against other support columns 703 to electrically heat the support column, and can gradually move upward along the fixed block 9 as the fixed block 9 continues to move downward, thereby ensuring that the heating and hot forging processes of the support column are carried out reliably at the same time. In addition, since the electric current heating efficiency is extremely high, the upper part of the support column 703 can be heated to a very high temperature in just a few seconds, and the impact on the substrate is very small, which is beneficial to ensure the strength of the aluminum alloy steam chamber and avoid damaging the mechanical properties of the aluminum alloy substrate. In summary, compared with the prior art, the steam chamber current-assisted connection and forming device of the present invention can achieve efficient and reliable connection and forming of large-area steam chambers without damaging the mechanical properties of the aluminum alloy substrate.

[0044] It should be noted that the steam chamber before welding is as follows Figure 6and attached Figure 7 As shown, it includes an upper cover plate 701, a lower support plate 702 and a support column 703. Typical large-area steam chambers are ≥ 100 cm 2 There are micro-nanoscale capillary cores inside the upper cover plate 701 and the lower support plate 702, which are used to promote the reflux of the working fluid and enhance the evaporation / boiling or condensation performance. The capillary core can be a micro-groove, a micro-array or sintered powder, a wire mesh, etc. There are multiple support columns 703 inside the steam chamber for bearing, wherein the support columns 703 and the lower support plate 702 are directly connected together through machining. In order to ensure that the welding or connection of the steam chamber is more reliable, the upper cover plate 701 and the lower support plate 702 are often overlapped at the joints, and there are overlap steps. Among them, the support column part includes an upper support column with a smaller cross-sectional size and a lower support column with a larger cross-sectional size, so that the lower support column with a larger cross-sectional size forms an overlap with the upper cover plate 701.

[0045] Optionally, the steam chamber 7 includes an upper cover plate 701, a lower support plate 702, and a plurality of support columns 703 arranged between the upper cover plate 701 and the lower support plate 702, the upper ends of the plurality of support columns 703 all pass through the upper cover plate 701, and the upper cross-sectional size of the support columns 703 is smaller than the lower cross-sectional size.

[0046] In this embodiment, the upper cross-sectional dimension of the support column 703 is smaller than the lower cross-sectional dimension. This design has two major advantages. On the one hand, when power is applied for heating, current flows through the support column 703. Since the upper cross-sectional area of ​​the support column 703 is smaller and the resistivity is higher, the current heating mainly acts on this area, and the temperature of this area is significantly higher than that of the lower part of the support column 703. On the other hand, when the support column 703 is forged after heating, since the upper part of the support column 703 is thinner and the temperature is higher, this area is easier to compact after forging, thereby realizing the welding of the upper cover plate 701 and the lower support plate 702 of the steam chamber 7.

[0047] Optionally, the steam chamber current-assisted connection forming device also includes a pressure plate 15 and an insulating plate 16, wherein the pressure plate 15 is connected to the telescopic end of the hydraulic cylinder 8, the insulating plate 16 is connected to the lower end surface of the pressure plate 15, and the fixed block 9 is connected to the lower end surface of the insulating plate 16.

[0048] In this embodiment, combined with the Figure 2 As shown, the pressing plate 15 and the insulating plate 16 can be square plate structures of the same size, wherein the pressing plate 15 can be connected to the lower end of the hydraulic cylinder 8 (attached) by bolts. Figure 2 In the opposite direction of the middle Z axis), the insulating plate 16 can be connected to the lower end surface of the pressing plate 15 by bolts, and the fixing block 9 and the insulating plate 16 can be fixed by bolts.

[0049] Optionally, the overall shape of the slider 11 is trapezoidal, and a trapezoidal groove matching the shape of the slider 11 is formed on the fixing block 9, and the slider 11 is used to slide up and down along the trapezoidal groove.

[0050] In this embodiment, combined with the Figure 4 As shown, the cross-sectional shape of the slider 11 is trapezoidal, and a trapezoidal groove for sliding cooperation with the slider 11 is provided on the fixed block 9. When the fixed block 9 is in the downward process, the slider 11 will contact the support column 703. When the fixed block 9 continues to descend, the slider 11 will move upward in the trapezoidal groove, because during this process, the forging punch 10 will press down the support column 703 to form a hot forging connection.

[0051] Optionally, the steam chamber current assisted connection forming device also includes a spring 17, and a first through hole coaxially arranged with the trapezoidal groove is opened on the fixed block 9 in the vertical direction, and the spring 17 is arranged in the first through hole, the upper end of the spring 17 is connected to the insulating plate 16, and the lower end of the spring 17 is connected to the slider 11.

[0052] In this embodiment, combined with the Figure 4 As shown, the spring 17 is located in the first through hole of the fixing block 9, wherein the first through hole is connected to the trapezoidal groove in the fixing block 9, and the first through hole is located directly above the trapezoidal groove (see FIG. Figure 1 or attached Figure 2 In the positive direction of the middle Z axis), the upper end of the spring 17 can be connected to the insulating plate 16 by welding, and the lower end of the spring 17 can be connected to the upper end of the slider 11 by welding. During the power-on heating process, the pressing force of the spring 17 can ensure that the power circuit is reliably connected.

[0053] Optionally, the slider 11 includes a first block 1101 and a second block 1102, wherein the first block 1101 is provided with a first semicircular groove 1103, and the second block 1102 is provided with a second semicircular groove 1104. The first block 1101 and the second block 1102 are used for relative movement and contact with each other so that the first semicircular groove 1103 and the second semicircular groove 1104 form a circular groove, and the upper end of the support column 703 is used to extend into the circular groove and abut against the slider 11.

[0054] In this embodiment, combined with the Figure 4As shown, the slider 11 includes a separate first block 1101 and a second block 1102, and the upper ends of the first block 1101 and the second block 1102 are respectively connected to the spring 17. When the spring 17 only has the gravity state of the slider 11, the first block 1101 and the second block 1102 have a gap. When the slider 11 contacts the support column 703 and continues to move downward, the first block 1101 and the second block 1102 move relative to each other and contact each other, so that the first semicircular groove 1103 and the second semicircular groove 1104 form a circular groove, which is used to wrap the upper end of the support column 703. When the fixed block 9 moves upward, the first block 1101 and the second block 1102 will gradually move away from each other and expose a gap to facilitate the slider 11 to leave the support column 703.

[0055] Optionally, a second through hole 901 is opened horizontally on the fixing block 9, and the copper terminal 12 is used to extend into the second through hole 901 and be threadedly connected to the slider 11, and the aperture of the second through hole 901 is larger than the axial diameter of the copper terminal 12.

[0056] In this embodiment, combined with the Figure 5 As shown, the fixed block 9 is horizontally (attached Figure 1 A second through hole 901 is provided (in the middle X-axis direction), and the copper terminal 12 can extend into the second through hole 901 and be threadedly connected to the slider 11. In order to avoid movement interference between the copper terminal 12 and the second through hole 901, the aperture of the second through hole 901 is designed to be larger than the shaft diameter of the copper terminal 12. The specific size design can be determined according to the movement stroke of the slider 11.

[0057] Optionally, the steam chamber current-assisted connection forming device further includes a guide screw 18 , and a third through hole is provided on the upper seat plate 1 in the vertical direction, the guide screw 18 extends into the third through hole, and the lower end of the guide screw 18 is threadedly connected to the pressure plate 15 .

[0058] In this embodiment, combined with the Figure 2 As shown, the upper seat plate 1 is vertically (attached Figure 2 A third through hole is provided (in the middle Z-axis direction), wherein a guide screw 18 is arranged in the third through hole, and the lower end of the guide screw 18 can be threadedly connected to the pressure plate 15.

[0059] Optionally, the assembly seat 4 includes a seat body 401 and a limit block 402, the seat body 401 is provided with a groove structure adapted to the shape of the lower support plate 702, the limit block 402 is used to be detachably connected to the seat body 401 by bolts, and the limit block 402 is used to press the lower support plate 702 into the groove structure.

[0060] In this embodiment, combined with the Figure 3 As shown, the base body 401 can be a square block structure, and a groove structure that is adapted to the shape of the lower support plate 702 is opened in the middle position thereof, so that after the steam chamber 7 is placed on the base body 401, it can be initially positioned, and the limit block 402 can be pressed on the edge position of the lower support plate 702, and then the limit block 402 can be connected to the base body 401 by bolts, thereby further limiting the steam chamber 7.

[0061] Optionally, the longitudinal movement mechanism 6 includes a first linear guide rail 601, a first linear guide groove 602, a support plate 603, a first lead screw 604, a first nut 605, a first motor 606, a first lead screw support seat 607 and a first motor support seat 608, wherein the first linear guide rail 601 is longitudinally laid on the lower seat plate 2, the first linear guide groove 602 is longitudinally laid on the end surface of the support plate 603 facing the lower seat plate 2, the first linear guide groove 602 is slidably connected to the first linear guide rail 601, the first lead screw support seat 607 and the first motor support seat 608 are spaced apart and connected to the lower seat plate 2, the first motor 606 is connected to the first motor support seat 608, the first lead screw 604 is connected to the first lead screw support seat 607, and the first motor 606 is drivingly connected to the first lead screw 604, the first nut 605 is threadedly connected to the first lead screw 604, and the first nut 605 is connected to the support plate 603;

[0062] The transverse movement mechanism 5 includes a second linear guide rail 501, a second linear guide groove 502, a second lead screw 503, a second nut 504, a second motor 505, a second lead screw support seat 506 and a second motor support seat 507. The second linear guide rail 501 is horizontally laid on the end surface of the support plate away from the lower seat plate 2, and the second linear guide groove 502 is horizontally laid on the end surface of the assembly seat 4 facing the support plate. The second linear guide groove 502 is slidably connected to the second linear guide rail 501, the second lead screw support seat 506 and the second motor support seat 507 are connected to the support plate at intervals, the second motor 505 is connected to the second motor support seat 507, the second lead screw 503 is connected to the second lead screw support seat 506, and the second motor 505 is drivingly connected to the second lead screw 503, the second nut 504 is threadedly connected to the second lead screw 503, and the second nut 504 is connected to the assembly seat 4.

[0063] In addition, the present invention also provides a method for using the steam chamber current-assisted connection forming device. Based on the steam chamber current-assisted connection forming device as described above, the method includes:

[0064] Step S1, assembling the steam chamber 7 to be connected and formed on the assembly seat 4;

[0065] Step S2: Control the hydraulic cylinder 8 downward to press the first support column position through the slider 11 to achieve a reliable connection of power return, and then turn on the DC power supply 14 to energize;

[0066] Step S3: Control the hydraulic cylinder 8 to move upward, and move the steam chamber 7 to the next support column position through the transverse movement mechanism 5 or the longitudinal movement mechanism 6. At this time, the two adjacent support column positions are respectively located directly below the slider 11 and the forging punch 10;

[0067] Step S4: Control the hydraulic cylinder 8 to move downward, and simultaneously realize the electrical heating of one of the support column positions and the hot forging connection forming of the other support column position;

[0068] Step S5, repeat the above steps S3 and S4 until the hot forging connection forming of all support column positions is completed.

[0069] In this embodiment, combined with the Figure 8 and attached Figure 9 As shown, after hot forging and forming the support column portion of the steam chamber 7 using the method of using the steam chamber current assisted connection forming device, the attached Figure 9 The hot forging weld 705 shown in the figure can then be welded to the upper cover plate 701 and the lower support plate 702 of the steam chamber 7 using friction stir welding by the stirring head 19, and the welded parts as shown in the figure are obtained. Figure 9 Friction stir weld 704 is shown. Throughout the steam chamber welding process, both the hot forging of the support column and the friction stir welding of the surrounding area are localized. Based on the theory of plastic deformation, this method eliminates the significant thermal impact and resulting reduction in steam chamber strength seen with other welding methods. This method has virtually no impact on the substrate, achieving efficient and reliable steam chamber connections over large areas without compromising the mechanical properties of the aluminum alloy.

[0070] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0071] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A steam chamber current assisted connection forming device, characterized in that: include: An upper seat plate (1), a lower seat plate (2), a pillar (3), an assembly seat (4), a transverse movement mechanism (5), a longitudinal movement mechanism (6), a hydraulic cylinder (8), a fixed block (9), a forging punch (10), a slider (11), a copper terminal (12), an electrical copper plate (13) and a DC power supply (14), wherein the pillar (3) is vertically connected between the upper seat plate (1) and the lower seat plate (2), the longitudinal movement mechanism (6) is arranged on the lower seat plate (2), the transverse movement mechanism (5) is arranged on the longitudinal movement mechanism (6), the assembly seat (4) is arranged on the transverse movement mechanism (5), the assembly seat (4) is used to install a steam chamber (7), the hydraulic cylinder (8) is connected to the upper seat plate (1), the fixed block (9), the forging punch (10), the slider (11), the copper terminal (12), the electrical copper plate (13) and the ... The fixed block (9) is connected to the telescopic end of the hydraulic cylinder (8), the forging punch (10) and the slider (11) are arranged on the fixed block (9) at intervals and are used to respectively correspond to two different support columns (703) on the steam chamber (7), the slider (11) is used to slide up and down along the fixed block (9), the copper terminal (12) is connected to the slider (11), the copper terminal (12) is electrically connected to the positive electrode of the DC power supply (14), the power copper plate (13) is arranged on the assembly seat (4), and the power copper plate (13) is used to contact the lower surface of the steam chamber (7), and the power copper plate (13) is electrically connected to the negative electrode of the DC power supply (14).

2. The steam chamber current assisted connection forming device according to claim 1, characterized in that: It also includes a pressing plate (15) and an insulating plate (16), wherein the pressing plate (15) is connected to the telescopic end of the hydraulic cylinder (8), the insulating plate (16) is connected to the lower end surface of the pressing plate (15), and the fixing block (9) is connected to the lower end surface of the insulating plate (16).

3. The steam chamber current assisted connection forming device according to claim 2, characterized in that: The overall shape of the slider (11) is trapezoidal, and the fixed block (9) is provided with a trapezoidal groove that matches the shape of the slider (11), and the slider (11) is used to slide up and down along the trapezoidal groove.

4. The steam chamber current assisted connection forming device according to claim 3, characterized in that: It also includes a spring (17), a first through hole coaxially arranged with the trapezoidal groove is opened on the fixed block (9) in the vertical direction, and the spring (17) is arranged in the first through hole, the upper end of the spring (17) is connected to the insulating plate (16), and the lower end of the spring (17) is connected to the slider (11).

5. The steam chamber current assisted connection forming device according to claim 4, characterized in that: The slider (11) comprises a first block (1101) and a second block (1102) which are separated. A first semicircular groove (1103) is provided on the first block (1101), and a second semicircular groove (1104) is provided on the second block (1102). The first block (1101) and the second block (1102) are used for relative movement and contact with each other so that the first semicircular groove (1103) and the second semicircular groove (1104) form a circular groove. The upper end of the support column (703) is used for extending into the circular groove and abutting against the slider (11).

6. The steam chamber current assisted connection forming device according to claim 3, characterized in that: A second through hole (901) is provided in the horizontal direction on the fixed block (9), and the copper terminal (12) is used to extend into the second through hole (901) and be threadedly connected to the slider (11), and the aperture of the second through hole (901) is larger than the shaft diameter of the copper terminal (12).

7. The steam chamber current assisted connection forming device according to claim 1, characterized in that: The steam chamber (7) comprises an upper cover plate (701), a lower support plate (702), and a plurality of support columns (703) arranged between the upper cover plate (701) and the lower support plate (702), wherein the upper ends of the plurality of support columns (703) all pass through the upper cover plate (701), and the upper cross-sectional dimensions of the support columns (703) are smaller than the lower cross-sectional dimensions.

8. The steam chamber current assisted connection forming device according to claim 7, characterized in that: The assembly seat (4) comprises a seat body (401) and a limiting block (402), wherein the seat body (401) is provided with a groove structure adapted to the shape of the lower support plate (702), and the limiting block (402) is used to be detachably connected to the seat body (401) by bolts, and the limiting block (402) is used to press the lower support plate (702) into the groove structure.

9. The steam chamber current assisted connection forming device according to claim 1, characterized in that: The longitudinal movement mechanism (6) includes a first linear guide rail (601), a first linear guide groove (602), a support plate (603), a first lead screw (604), a first nut (605), a first motor (606), a first lead screw support seat (607) and a first motor support seat (608), wherein the first linear guide rail (601) is longitudinally laid on the lower seat plate (2), the first linear guide groove (602) is longitudinally laid on the end surface of the support plate (603) toward the lower seat plate (2), and the first linear guide groove (602) is slidably connected to the first linear guide rail (601). On the guide rail (601), the first screw support seat (607) and the first motor support seat (608) are spaced apart and connected to the lower seat plate (2), the first motor (606) is connected to the first motor support seat (608), the first screw (604) is connected to the first screw support seat (607), and the first motor (606) is drivingly connected to the first screw (604), the first nut (605) is threadedly connected to the first screw (604), and the first nut (605) is connected to the support plate (603); The transverse movement mechanism (5) comprises a second linear guide rail (501), a second linear guide groove (502), a second lead screw (503), a second nut (504), a second motor (505), a second lead screw support seat (506) and a second motor support seat (507), wherein the second linear guide rail (501) is laid transversely on the end face of the support plate away from the lower seat plate (2), the second linear guide groove (502) is laid transversely on the end face of the assembly seat (4) toward the support plate, and the second linear guide groove (502) is slidably connected to the second linear guide rail. On the guide rail (501), the second screw support seat (506) and the second motor support seat (507) are spaced apart and connected to the support plate, the second motor (505) is connected to the second motor support seat (507), the second screw (503) is connected to the second screw support seat (506), and the second motor (505) is drivingly connected to the second screw (503), the second nut (504) is threadedly connected to the second screw (503), and the second nut (504) is connected to the assembly seat (4).

10. A method for using a steam chamber current-assisted connection forming device, based on the steam chamber current-assisted connection forming device according to any one of claims 1 to 9, characterized in that: The method comprises: Step S1, assembling the steam chamber (7) to be connected and formed on the assembly seat (4); Step S2, controlling the hydraulic cylinder (8) to move downward, pressing the first support column position through the slider (11) to achieve a reliable connection of power return, and then turning on the DC power supply (14) to energize; Step S3, controlling the hydraulic cylinder (8) to move upward, and moving the steam chamber (7) to the next support column position through the transverse movement mechanism (5) or the longitudinal movement mechanism (6), at which time the two adjacent support column positions are respectively located directly below the slider (11) and the forging punch (10); Step S4, controlling the hydraulic cylinder (8) to move downward, and simultaneously achieving electrical heating of one of the support column positions and hot forging connection forming of the other support column position; Step S5, repeat the above steps S3 and S4 until the hot forging connection forming of all support column positions is completed.

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