Tool clamp for brazing of heat dissipation plate

Abstract

The utility model discloses a work fixture for brazing a heat dissipation plate, which comprises a base plate and heat dissipation fins, a centering clamping piece is arranged on the outer side of the base plate, the centering clamping piece comprises a centering plate, a long transverse plate, a vertical plate, a fixing strip, a centering screw rod and a fixing screw rod, a centering sliding groove is arranged on the side face of the centering plate, and the centering plate is provided with a clamping groove. The centering screw rotates in the centering sliding groove and rotationally penetrates through the centering plate, two sets of centering sliding blocks are arranged in the centering sliding groove in a sliding mode, the centering screw penetrates through the centering sliding blocks in a threaded mode, the long transverse plate is fixed to the centering sliding blocks, an adjusting sliding groove is formed in the center of the top end of the long transverse plate, an adjusting sliding block slides in the adjusting sliding groove, and the vertical plate is fixed to the adjusting sliding block. A fixing sliding groove is formed in the center of the side face of the vertical plate, a fixing sliding block slides in the fixing sliding groove, a fixing screw rod is rotationally arranged in the fixing sliding groove and penetrates through the fixing sliding block in a threaded mode, and a fixing strip is fixed to the fixing sliding block, in this way, the clamping position can be freely adjusted according to the size, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of heat sink processing technology, specifically to a tooling fixture for heat sink brazing. Background Technology

[0002] Copper pin-fin heat sink substrate, also known as pin-type copper substrate, is a key component for heat dissipation of high-power electronic devices. Its core feature is to improve heat dissipation efficiency through densely arranged copper pins or pin fins. It mainly consists of a substrate and heat dissipation fins soldered onto the substrate. The densely arranged pin fin structure on the substrate surface significantly increases the heat dissipation surface area, forming a direct cooling channel, effectively accelerating the transfer of heat to the surrounding environment or coolant, resulting in good heat dissipation performance.

[0003] In the process of processing copper fin heat sink substrate, the heat sink fins need to be arranged on the substrate in advance and fixed by tooling fixtures before brazing. However, most of the existing tooling fixtures are only applicable to heat sink fins of a single size and cannot be freely adjusted in terms of clamping position, making them inconvenient to use.

[0004] Based on this, the present invention designs a tooling fixture for brazing heat sinks to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a tooling fixture for brazing heat sinks.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A fixture for brazing a heat sink includes a base plate and heat sink fins. A centering clamp is provided on the outer side of the base plate. The centering clamp includes a centering plate, a long horizontal plate, a vertical plate, a fixing strip, a centering screw, and a fixing screw. A centering groove is formed on the side of the centering plate. The centering screw rotates within the centering groove and passes through the centering plate. Two sets of centering sliders slide within the centering groove. The centering screw is threaded through the centering sliders. The long horizontal plate is fixed to the centering sliders. An adjusting groove is formed at the center of the top of the long horizontal plate. An adjusting slider slides within the adjusting groove. The vertical plate is fixed to the adjusting sliders. A fixing groove is formed at the center of the side of the vertical plate. A fixing slider slides within the fixing groove. The fixing screw rotates within the fixing groove and is threaded through the fixing slider. The fixing strip is fixed to the fixing slider.

[0008] Furthermore, the long horizontal plate is threadedly fixed to the centering slider, the vertical plate is threadedly fixed to the adjusting slider, and the fixing strip is threadedly fixed to the fixing slider.

[0009] Furthermore, the centering groove is provided through both sides of the centering plate and has a sliding block. The block is threadedly fixed to the side of the centering plate. The centering screw rotates through the block. The adjusting groove is provided through both sides of the long horizontal plate. Adjusting holes are provided on the inner wall of the adjusting groove and on the side of the adjusting slider. The adjusting holes on the adjusting groove are equally spaced, and adjusting rods are inserted into the adjusting holes.

[0010] Furthermore, an auxiliary sliding groove is provided on the side of the upright plate of a set, an auxiliary slider slides in the auxiliary sliding groove, a guide rod is fixed in the auxiliary sliding groove, the auxiliary slider is movably sleeved on the outer wall of the guide rod, and the fixing strip is threadedly fixed to the side of the auxiliary slider.

[0011] Furthermore, the centering plate is assembled from two sets of edge center plates and multiple sets of inner center plates, the centering groove is formed on the side of the edge center plates and the inner center plates, and the long horizontal plate is threadedly fixed to the edge center plates.

[0012] Furthermore, the long horizontal plate includes a set of edge horizontal plates and multiple sets of center horizontal plates, the adjusting groove is formed on the edge horizontal plates and the center horizontal plates, and the edge horizontal plates are threadedly fixed to the edge center plates.

[0013] Furthermore, the fixing strip includes two sets of edge strips and multiple sets of center strips, with the edge strips threaded onto the fixing slider and the auxiliary slider.

[0014] Furthermore, connecting grooves are provided on one side of the edge plate, one side of the inner plate, one side of the edge plate, one side of the center plate, one side of a set of edge strips, and one side of the center strip. Connecting blocks are fixed on the other side of the edge plate, the other side of the inner plate, the other side of the center plate, the other side of another set of edge strips, and the other side of the center strip. Fixing holes are provided on the connecting grooves and connecting blocks, and fixing rods are installed in the fixing holes.

[0015] The beneficial effects of this utility model are:

[0016] 1. By setting up centering clamps, the positions of the two sets of long horizontal plates can be adjusted according to the size of the substrate. At the same time, an appropriate number of fixing strips can be selected for installation according to the size of the heat dissipation fins and their positions can be adjusted to achieve multi-position clamping and fixing of the heat dissipation fins, which facilitates subsequent processing.

[0017] 2. By setting adjustment holes and adjustment rods, the appropriate adjustment hole position can be selected. The adjustment rod is inserted into the adjustment hole to position the upright plate, thereby achieving adjustment and fixation of the fixing strip. By setting auxiliary slides, auxiliary sliders, and guide rods, the stability is improved during the downward movement of the fixing strip with the assistance of the guide rods, and with the cooperation of the auxiliary slides and auxiliary sliders. By setting edge middle plates, inner middle plates, edge horizontal plates, center horizontal plates, edge strips, center strips, connecting grooves, and connecting blocks, the assembly length of the middle plates, long horizontal plates, and fixing strips can be adjusted according to specific needs, facilitating installation and use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional view of the main structure of a tooling fixture for brazing a heat sink plate according to the present invention.

[0019] Figure 2 This is a three-dimensional view of the edge plate structure of a tooling fixture for brazing a heat sink plate according to the present invention.

[0020] Figure 3 This is a three-dimensional view of the inner plate structure of a tooling fixture for brazing a heat sink plate according to the present invention.

[0021] Figure 4 This is a three-dimensional view of the edge horizontal plate structure of a tooling fixture for brazing a heat sink plate according to the present invention.

[0022] Figure 5 This is a perspective view of the central horizontal plate structure of a tooling fixture for brazing a heat sink plate according to the present invention.

[0023] Figure 6 This utility model discloses a three-dimensional edge strip structure for a tooling fixture used for brazing a heat sink plate. Figure 1 .

[0024] Figure 7 This utility model discloses a three-dimensional edge strip structure for a tooling fixture used for brazing a heat sink plate. Figure 2 .

[0025] Figure 8 This is a perspective view of the center strip structure of a tooling fixture for brazing a heat sink plate according to the present invention.

[0026] The labels in the diagram represent:

[0027] 1. Base plate; 2. Heat dissipation fins; 3. Centering plate; 4. Long horizontal plate; 5. Vertical plate; 6. Fixing strip; 7. Centering screw; 8. Fixing screw; 9. Centering groove; 10. Centering slider; 11. Adjusting groove; 12. Adjusting slider; 13. Fixing groove; 14. Fixing slider; 15. Block; 16. Auxiliary groove; 17. Auxiliary slider; 18. Guide rod; 19. Edge middle plate; 20. Inner middle plate; 21. Edge horizontal plate; 22. Center horizontal plate; 23. Edge strip; 24. Center strip; 25. Connecting groove; 26. Connecting block; 27. Fixing hole; 28. Fixing rod; 29. ​​Adjusting hole; 30. Adjusting rod. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0029] In some embodiments, please refer to the accompanying drawings. Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7 A fixture for brazing a heat sink includes a base plate 1 and heat sink fins 2. A centering clamp is provided on the outer side of the base plate 1. The centering clamp includes a centering plate 3, a long horizontal plate 4, a vertical plate 5, a fixing strip 6, a centering screw 7, and a fixing screw 8. A centering groove 9 is provided on the side of the centering plate 3. The centering screw 7 rotates in the centering groove 9 and passes through the centering plate 3. Two sets of centering sliders 10 slide in the centering groove 9. The centering screw 7 is threaded through the centering sliders 10. The long horizontal plate 4 is fixed on the centering sliders 10. An adjusting groove 11 is provided at the center of the top of the long horizontal plate 4. An adjusting slider 12 slides in the adjusting groove 11. The vertical plate 5 is fixed on the adjusting slider 12. A fixing groove 13 is provided at the center of the side of the vertical plate 5. A fixing slider 14 slides in the fixing groove 13. The fixing screw 8 rotates in the fixing groove 13 and is threaded through the fixing slider 14. The fixing strip 6 is fixed on the fixing slider 14.

[0030] Before brazing, the heat dissipation fins 2 are placed on the substrate 1 according to the processing requirements. Using the centering clamp, the centering screw 7 is rotated. Through the sliding cooperation between the centering screw 7 and the centering slider 10, the positions of the two sets of long horizontal plates 4 are adjusted so that they fit against the side of the substrate 1. After adjustment, according to the size of the heat dissipation fins 2, an appropriate number of adjusting sliders 12 are selected and slid into the adjusting grooves 11 to install multiple sets of vertical plates 5. Using the fixing strips 6 on the vertical plates 5, the fixing screw 8 is rotated. Through the threaded cooperation between the fixing screw 8 and the fixing slider 14, the fixing strip 6 moves down and contacts the heat dissipation fins 2, clamping them to facilitate subsequent brazing.

[0031] In this embodiment of the utility model, by setting a centering clamp, the positions of the two sets of long horizontal plates 4 can be adjusted according to the size of the substrate 1. At the same time, according to the size of the heat dissipation fins 2, an appropriate number of fixing strips 6 can be selected for installation and their positions can be adjusted to achieve multi-position clamping and fixing of the heat dissipation fins 2, which is convenient for subsequent processing.

[0032] In one embodiment of this utility model, the long horizontal plate 4 is threadedly fixed to the centering slider 10, the vertical plate 5 is threadedly fixed to the adjusting slider 12, and the fixing strip 6 is threadedly fixed to the fixing slider 14, facilitating the loading and unloading of the long horizontal plate 4, the vertical plate 5, and the fixing strip 6; the centering groove 9 is provided through both sides of the centering plate 3 and has a sliding block 15, the block 15 being threadedly fixed to the side of the centering plate 3, and the centering screw 7 is rotatably provided through the block 15; the adjusting groove 11 is provided through both sides of the long horizontal plate 4, and adjusting holes 29 are provided on the inner wall of the adjusting groove 11 and on the side of the adjusting slider 12, the adjusting holes 29 on the adjusting groove 11 being equally spaced, and the adjusting holes 29... An adjusting rod 30 is inserted into the upright plate 5. When installing the upright plate 5, an adjusting hole 29 at a suitable position can be selected. The adjusting rod 30 is inserted into the adjusting hole 29 to position it, thereby adjusting and fixing the fixing strip 6. An auxiliary sliding groove 16 is opened on the side of the upright plate 5. An auxiliary slider 17 slides in the auxiliary sliding groove 16. A guide rod 18 is fixed in the auxiliary sliding groove 16. The auxiliary slider 17 is movably sleeved on the outer wall of the guide rod 18. The fixing strip 6 is threaded to the side of the auxiliary slider 17. When the fixing strip 6 moves down, with the assistance of the guide rod 18 and the cooperation of the auxiliary sliding groove 16 and the auxiliary slider 17, the stability is improved.

[0033] In some embodiments, such as Figures 1 to 8 As shown, the centering plate 3 is assembled from two sets of edge center plates 19 and multiple sets of inner center plates 20. The centering groove 9 is opened on the side of the edge center plates 19 and the inner center plates 20. The long horizontal plate 4 is threadedly fixed on the edge center plate 19. The long horizontal plate 4 includes one set of edge horizontal plates 21 and multiple sets of center horizontal plates 22. The adjusting groove 11 is opened on the edge horizontal plates 21 and the center horizontal plates 22. The edge horizontal plates 21 are threadedly fixed on the edge center plate 19. The fixing strip 6 includes two sets of edge strips 23 and multiple sets of center strips 24. The edge strips 23 are threadedly fixed on the fixing slider 14 and the auxiliary slider 17. Connecting grooves 25 are provided on one side of the edge plate 19, one side of the inner plate 20, one side of the edge plate 21, one side of the center plate 22, one side of a set of edge strips 23, and one side of the center strip 24. Connecting blocks 26 are fixed on the other side of the edge plate 19, the other side of the inner plate 20, the other side of the center plate 22, the other side of another set of edge strips 23, and the other side of the center strip 24. Fixing holes 27 are provided on the connecting grooves 25 and the connecting blocks 26, and fixing rods 28 are installed in the fixing holes 27.

[0034] In use, first assemble the centering plate 3. Using the connection groove 25 and the connecting block 26, assemble the edge center plate 19 and the inner center plate 20 into the centering plate 3, making it fit against one side of the substrate 1. Then, use the fixing rod 28 inserted into the fixing hole 27 for fixation. Next, slide the blocking block 15 and the centering slider 10 into the centering groove 9. Then, thread the edge horizontal plate 21 onto the centering slider 10. According to the size of the substrate 1, rotate the centering screw 7. Through the sliding cooperation of the centering screw 7 and the centering slider 10, adjust the position of the two sets of edge horizontal plates 21 so that they fit against the side of the substrate 1, making the two sets of edge horizontal plates 21 symmetrically arranged on both sides of the substrate 1. Then, according to the size of the substrate 1, select an appropriate number of center strips 24 and, together with the edge strips 23, fit them in the connection groove 25 and the connecting block 26. The assembly is completed into a fixing strip 6, which is then fixed by inserting a fixing rod 28 into a fixing hole 27. Based on its length, the centering screw 7 is reversed to adjust the spacing between the two sets of edge horizontal plates 21. After adjustment, a suitable number of center horizontal plates 22 are selected according to the size of the substrate 1. Using the cooperation of the connecting groove 25 and the connecting block 26, they form a long horizontal plate 4 with the edge horizontal plates 21. The fixing rod 28 is then inserted into the fixing hole 27 for fixing. Based on the size of the heat dissipation fins 2, a suitable number of adjusting sliders 12 are selected and slid into the adjusting groove 11 to install multiple sets of upright plates 5. Using the fixing strip 6 on the upright plate 5, the fixing screw 8 is rotated. The threaded cooperation between the fixing screw 8 and the fixing slider 14 causes the fixing strip 6 to move down and contact the heat dissipation fins 2, clamping them for subsequent brazing.

[0035] In this embodiment of the utility model, by setting an edge middle plate 19, an inner middle plate 20, an edge horizontal plate 21, a central horizontal plate 22, an edge strip 23, a central strip 24, a connecting groove 25, and a connecting block 26, the assembly length of the middle plate 3, the long horizontal plate 4, and the fixing strip 6 can be adjusted according to specific needs for edge installation and use.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fixture for brazing a heat sink, comprising a base plate (1) and heat sink fins (2), characterized in that: A centering clamp is provided on the outer side of the substrate (1). The centering clamp includes a centering plate (3), a long horizontal plate (4), a vertical plate (5), a fixing strip (6), a centering screw (7), and a fixing screw (8). A centering groove (9) is provided on the side of the centering plate (3). The centering screw (7) rotates in the centering groove (9) and rotates through the centering plate (3). Two sets of centering sliders (10) slide in the centering groove (9). The centering screw (7) is threaded through the centering sliders (10). The long horizontal plate (4) is fixed on the substrate. On the centering slider (10), an adjusting groove (11) is provided at the top center of the long horizontal plate (4), and an adjusting slider (12) slides in the adjusting groove (11). The vertical plate (5) is fixed on the adjusting slider (12). A fixing groove (13) is provided at the center of the side of the vertical plate (5), and a fixing slider (14) slides in the fixing groove (13). The fixing screw (8) rotates in the fixing groove (13) and is threaded through the fixing slider (14). The fixing strip (6) is fixed on the fixing slider (14).

2. The tooling fixture for brazing a heat sink plate according to claim 1, characterized in that, The long horizontal plate (4) is threadedly fixed to the centering slider (10), the vertical plate (5) is threadedly fixed to the adjusting slider (12), and the fixing strip (6) is threadedly fixed to the fixing slider (14).

3. The tooling fixture for brazing a heat sink plate according to claim 1, characterized in that, The centering groove (9) is provided through both sides of the centering plate (3) and a blocking block (15) slides therethrough. The blocking block (15) is threadedly fixed to the side of the centering plate (3). The centering screw (7) rotates through the blocking block (15). The adjusting groove (11) is provided through both sides of the long horizontal plate (4). Adjusting holes (29) are provided on the inner wall of the adjusting groove (11) and on the side of the adjusting slider (12). The adjusting holes (29) on the adjusting groove (11) are equally spaced. An adjusting rod (30) is inserted into the adjusting hole (29).

4. The tooling fixture for brazing a heat sink plate according to claim 3, characterized in that, An auxiliary slide groove (16) is provided on the side of the upright plate (5) of the set. An auxiliary slider (17) slides in the auxiliary slide groove (16). A guide rod (18) is fixed in the auxiliary slide groove (16). The auxiliary slider (17) is movably sleeved on the outer wall of the guide rod (18). The fixing strip (6) is threadedly fixed to the side of the auxiliary slider (17).

5. The tooling fixture for brazing a heat sink plate according to claim 1, characterized in that, The centering plate (3) is assembled from two sets of edge center plates (19) and multiple sets of inner center plates (20). The centering groove (9) is opened on the side of the edge center plate (19) and the inner center plate (20). The long horizontal plate (4) is threadedly fixed on the edge center plate (19).

6. The tooling fixture for brazing a heat sink plate according to claim 5, characterized in that, The long horizontal plate (4) includes a set of edge horizontal plates (21) and multiple sets of center horizontal plates (22). The adjusting groove (11) is opened on the edge horizontal plates (21) and the center horizontal plates (22). The edge horizontal plates (21) are threadedly fixed on the edge middle plate (19).

7. The tooling fixture for brazing a heat sink plate according to claim 6, characterized in that, The fixing strip (6) includes two sets of edge strips (23) and multiple sets of center strips (24). The edge strips (23) are threadedly fixed to the fixing slider (14) and the auxiliary slider (17).

8. The tooling fixture for brazing a heat sink plate according to claim 7, characterized in that, Connecting grooves (25) are provided on one side of the edge plate (19), one side of the inner plate (20), one side of the edge plate (21), one side of the center plate (22), one side of a set of edge strips (23), and one side of the center strip (24). Connecting blocks (26) are fixed on the other side of the edge plate (19), the other side of the inner plate (20), the other side of the center plate (22), the other side of another set of edge strips (23), and the other side of the center strip (24). Fixing holes (27) are provided on the connecting grooves (25) and the connecting blocks (26). Fixing rods (28) are installed in the fixing holes (27).

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