Alloy inductor forming die
By designing an alloy inductor forming mold that includes a base, a forming middle mold, a forming lower punch, a forming upper punch, and a height adjustment component, the problems of complex structure and poor versatility of existing molds are solved, thereby simplifying the mold and reducing costs, making it suitable for the production of inductors for new products.
Patent Information
- Application Number
- CN202420863116.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2025-01-07
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing alloy inductor forming molds are complex in structure and have poor versatility, resulting in high mold manufacturing costs and making them unsuitable for new product development and experimentation.
Design an alloy inductor forming die including a base, a forming middle die, a forming lower punch, a forming upper punch, and a height adjustment component. By adjusting the depth and height of the forming lower punch and the forming upper punch, the inductor coil and metal magnetic powder can be formed. Combined with the use of a demolding component, the die structure is simplified and can be adapted to the production of inductors of different specifications.
It achieves a simple mold structure and convenient assembly, enabling the production of alloy inductors of different specifications, reducing mold costs, and is suitable for new product research and development and experimentation.
Smart Images
Figure CN222307350U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of powder metallurgy molds, in particular to an alloy inductor forming mold. Background Art
[0002] As one of the three basic components of electronic circuits, inductors mainly play the role of filtering, oscillating, delaying, trapping, selecting signals, filtering noise, stabilizing current and suppressing electromagnetic interference in circuits. The one-piece inductor consists of two parts: the magnet and the winding body. The forming process is to bury the winding body inside the metal magnetic powder (such as Figure 1 As shown in the figure, it is die-casted. The one-piece molded inductor integrates the inductor coil and the magnetic core into a separate unit, which makes it occupy a smaller PCB area, helps to reduce the volume of the overall device, and makes it lighter and more compact. In addition, the one-piece molded inductor can work for a long time under high current conditions and can provide stable power supply to the CPU. At present, the forming process of the one-piece molded inductor is all produced by machine, and the forming molds are designed for specific models. Not only are there many special accessories, the mold structure is complex, the assembly is difficult, and the versatility is poor, but the mold manufacturing cost is high. It is only suitable for the stable production of mature products, but not suitable for the research and development and experimental use of new products. Utility Model Content
[0003] In order to solve the above technical problems, the purpose of the utility model is to provide an alloy inductor forming mold which has a simple structure and is easy to assemble and can meet the needs of forming alloy inductors of different specifications.
[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: an alloy inductor forming mold, comprising a base, a height adjustment member, a forming middle mold, a forming lower punch and a forming upper punch, the base is horizontally arranged, the forming middle mold is horizontally arranged, and a mold hole penetrating up and down is arranged in the middle thereof, the forming middle mold is installed on the upper end of the base through the height adjustment member, the forming lower punch is placed on the upper end of the base, and the upper end of the forming lower punch is aligned with the mold hole and extends into the mold hole to seal the lower end of the mold hole to form a mold groove, the mold groove is used to accommodate an inductor coil and a metal magnetic powder, the lower end of the forming upper punch is inserted into the mold hole and squeezes the metal magnetic powder under the action of an external force to form a blank embedded with an inductor coil, and the height adjustment member is used to drive the height of the forming middle mold relative to the forming lower punch to adjust the groove depth of the mold groove or eject the blank upward.
[0005] The beneficial effect of the above technical solution is that: the forming lower punch can be set at the upper end of the base, and the upper end of the forming lower punch extends into the die hole of the forming middle die, and the lower end of the die hole is sealed. At the same time, the depth of the forming lower punch extending into the die hole can be adjusted to adjust the depth of the die groove, and then the inductor coil and metal magnetic powder are added to the die groove, and finally the forming upper punch is inserted into the upper end of the die groove and the metal magnetic powder in the die groove is compacted into a blank by the forming upper punch, and then the forming upper punch is taken out, and the forming middle die is adjusted downward, so that the blank can be ejected from the die groove by the forming lower punch.
[0006] In the above technical solution, the forming upper punch and the forming lower punch are both straight bar-shaped, and their cross sections are matched with the die hole to be inserted into the die hole in a sealed manner.
[0007] The beneficial effects of the above technical solution are: its structure is simple, and the forming upper punch and the forming lower punch have good sealing performance after being inserted into the die hole.
[0008] In the above technical solution, the die hole is a square hole, and the forming upper punch and the forming lower punch are square bars.
[0009] The beneficial effect of the above technical solution is that the produced blank is finally in a cubic shape.
[0010] The height adjustment member in the above technical solution includes multiple springs and a counterweight ring, the upper end of the base is recessed with multiple lower slots distributed in an annular direction, the lower end of the forming middle die is recessed with multiple upper slots distributed in an annular direction, and the multiple lower slots, the multiple upper slots and the multiple springs correspond to each other one by one, and the corresponding lower slots and upper slots are aligned with each other, the two ends of each spring are respectively inserted into the corresponding lower slot and upper slot, and the multiple springs jointly support the forming middle die, and the counterweight ring is horizontally placed at the upper end of the forming middle die, and the weight of the counterweight ring is adjusted to adjust the height of the forming middle die.
[0011] The beneficial effects of the above technical solution are: its structure is simple and the height is easy to adjust. Placing a counterweight ring on the forming die can press the forming die down, and removing the counterweight ring can move the forming die upward under the action of multiple springs.
[0012] The height adjustment member in the above technical solution also includes multiple adjusting bolts, and a plurality of threaded holes are circumferentially spaced apart at the upper end of the base, and the plurality of threaded holes correspond one-to-one to the plurality of adjusting bolts. The plurality of adjusting bolts are vertically arranged at the edge between the base and the forming mold, and the threaded end of each adjusting bolt faces downward and is threadedly connected to the corresponding threaded hole. The plurality of adjusting bolts are tightened or loosened to adjust the horizontality and / or height of the forming mold.
[0013] The beneficial effect of the above technical solution is that its structure is simple, and the forming middle die can be lifted up to a fixed height by a plurality of adjusting bolts.
[0014] In the above technical solution, the plurality of lower slot holes and the plurality of threaded holes are distributed in a staggered manner in the same circle.
[0015] The beneficial effect of the above technical solution is that the distribution of the adjusting bolts and the springs is orderly and the structure is more compact.
[0016] In the above technical solution, there are three lower slot holes, three upper slot holes, three threaded holes, three adjusting bolts and three springs.
[0017] The beneficial effect of the above technical solution is that the springs and the adjusting bolts are staggered and distributed, thereby achieving good stability.
[0018] The above technical solution also includes a demoulding piece, which is a ring-shaped piece and is horizontally placed on the forming middle die to press the forming middle die to move downward relative to the forming lower punch.
[0019] The beneficial effect of the above technical solution is that after the blank is pressed and formed, the demoulding piece can be placed on the forming middle die, and the forming middle die can be pressed down so that the blank can be pushed upward by the forming lower punch.
[0020] In the above technical solution, the lower end of the demoulding member is provided with three support claws convexly spaced in an circumferential direction, and the area between any two adjacent support claws constitutes a removal port for taking out the blank.
[0021] The beneficial effect of the above technical solution is that: in this way, the demoulding member can be pressed downward under the action of external force so that the blank is ejected between the multiple supporting claws, and then the blank can be taken out from any taking-out port.
[0022] In the above technical solution, the upper end of the forming middle die is concavely provided with three limiting grooves, and the three limiting grooves correspond to the three supporting claws one by one, and each limiting groove is used for the lower end of the supporting claw to extend into.
[0023] The beneficial effect of the above technical solution is that it enables the demoulding piece to have a good horizontal limiting effect on the forming film. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 is a perspective view of the blank;
[0025] Figure 2 This is a schematic diagram of the pre-assembly of the alloy inductor forming die according to the embodiment of the utility model;
[0026] Figure 3 It is a schematic diagram of the working condition when the blank is demoulded in the embodiment of the utility model;
[0027] Figure 4 It is a top view of the base described in the embodiment of the utility model;
[0028] Figure 5 It is a bottom view of the forming middle mold described in the embodiment of the utility model;
[0029] Figure 6 It is a top view of the forming middle mold described in the embodiment of the utility model;
[0030] Figure 7 It is a schematic diagram of pre-assembly of the forming middle die and the forming lower punch described in the embodiment of the utility model;
[0031] Figure 8 It is a schematic diagram of the state of pre-filling the metal magnetic powder in the mold groove in the embodiment of the utility model;
[0032] Fig. 9 This is a schematic diagram of a state in which an inductor coil is placed in the mold groove in the embodiment of the utility model;
[0033] Fig.10 It is a schematic diagram of a state in which the inductor coil in the mold groove is completely embedded in the embodiment of the utility model;
[0034] Fig.11 It is a schematic diagram of the state of the blank being ejected from the die cavity in the embodiment of the utility model.
[0035] In the figure: 1 base; 11 lower slot hole; 12 threaded hole; 2 height adjustment member; 21 spring; 22 counterweight ring; 23 adjustment bolt; 3 forming middle die; 31 die hole; 32 upper slot hole; 33 limit groove; 4 forming lower punch; 5 forming upper punch; 6 demoulding member; 61 supporting claw; 7 blank; 71 inductor coil. DETAILED DESCRIPTION
[0036] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. According to the following description and claims, the advantages and features of the present invention will be more clearly described. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.
[0037] like Figure 2As shown, this embodiment provides an alloy inductor forming mold, including a base 1, a height adjustment member 2, a forming middle mold 3, a forming lower punch 4 and a forming upper punch 5, the base 1 is horizontally arranged, the forming middle mold 3 is horizontally arranged, and a mold hole 31 penetrating from top to bottom is arranged in the middle thereof, the forming middle mold 3 is installed at the upper end of the base 1 through the height adjustment member 2, the forming lower punch 4 is placed at the upper end of the base 1, and the upper end of the forming lower punch 4 is aligned with the mold hole 31 and extends into the mold hole 31 to block the lower end of the mold hole 31 to form a mold groove, the mold groove is used to accommodate the inductor coil and the metal magnetic powder, the lower end of the forming upper punch 5 is inserted into the mold hole 31 and squeezes the metal magnetic powder under the action of external force to form an inductor embedded with the metal magnetic powder. The height adjustment member 2 is used to drive the height of the forming middle die 3 relative to the forming lower punch 4 to adjust the groove depth of the die groove or eject the blank upward. In this way, the forming lower punch can be set at the upper end of the base, and the upper end of the forming lower punch extends into the die hole of the forming middle die, and the lower end of the die hole is blocked. At the same time, the depth of the forming lower punch extending into the die hole can be adjusted to adjust the depth of the die groove (thereby producing alloy inductors of different specifications), and then add the inductor coil and metal magnetic powder into the die groove, and finally insert the forming upper punch into the upper end of the die groove and use the forming upper punch to compact the metal magnetic powder in the die groove into a blank, and then take out the forming upper punch, and then adjust the forming middle die downward so that the blank can be ejected from the die groove by the forming lower punch.
[0038] In the above technical solution, the forming upper punch 5 and the forming lower punch 4 are both straight bars, and their cross sections cooperate with the die hole 31 to be sealed and inserted into the die hole 31. The structure is simple, and the forming upper punch and the forming lower punch have good sealing performance after being inserted into the die hole.
[0039] In the above technical solution, the die hole 31 is a square hole, and the forming upper punch 5 and the forming lower punch 4 are square bars, so that the produced blank is finally in a cubic shape.
[0040] like Figure 4 and Figure 5As shown, the height adjustment member 2 in the above technical scheme includes a plurality of springs 21 and a counterweight ring 22, the upper end of the base 1 is recessed with a plurality of lower slots 11 distributed circumferentially at intervals, the lower end of the forming middle die 3 is recessed with a plurality of upper slots 32 distributed circumferentially at intervals, and the plurality of lower slots 11, the plurality of upper slots 32 and the plurality of springs 21 correspond to each other one by one, and the corresponding lower slots 11 and upper slots 32 are aligned with each other, the two ends of each spring 21 are respectively inserted into the corresponding lower slots 11 and upper slots 32, and the plurality of springs 21 jointly hold up the forming middle die 3, the counterweight ring 22 is horizontally placed at the upper end of the forming middle die 3, and the weight of the counterweight ring 22 is adjusted to adjust the height of the forming middle die 3, the structure is simple, and the height adjustment is convenient, placing the counterweight ring on the forming middle die can press the forming middle die down, and removing the counterweight ring can make the forming middle die move up under the action of the plurality of springs.
[0041] When the counterweight ring is placed on the upper end of the forming middle die, its inner hole is aligned with the die hole and does not affect the forming upper punch passing through the counterweight ring and extending into the die hole.
[0042] The height adjustment member 2 in the above technical solution also includes a plurality of adjusting bolts 23. A plurality of threaded holes 12 are circumferentially spaced apart at the upper end of the base 1. The plurality of threaded holes 12 correspond one to one with the plurality of adjusting bolts 23. The plurality of adjusting bolts 23 are vertically arranged at the edge between the base 1 and the forming mold 3, and the threaded end of each adjusting bolt 23 faces downward and is threadedly connected to the corresponding threaded hole 12. The plurality of adjusting bolts 23 are tightened or loosened to adjust the horizontality and / or height of the forming mold 3. The structure is simple, and the forming mold can be lifted up by a plurality of adjusting bolts to fix its height.
[0043] In the above technical solution, the plurality of lower slot holes 11 and the plurality of threaded holes 12 are staggeredly distributed in the same circle, so that the distribution of the adjusting bolts and the springs is orderly and the structure is more compact.
[0044] In the above technical solution, the number of the lower slot hole 11, the upper slot hole 32, the threaded hole 12, the adjusting bolt 23 and the spring 21 are all three, so that the spring and the adjusting bolt are staggered and distributed, and the stability is good.
[0045] The above technical solution also includes a demolding piece 6, which is a ring-shaped piece, which is horizontally placed on the forming middle die 3 to press the forming middle die 3 downward relative to the forming lower punch 4. In this way, after the blank is pressed into shape, the demolding piece can be placed on the forming middle die, and the forming middle die can be pressed down so that the blank can be ejected upward by the forming lower punch.
[0046] like Figure 3As shown, the lower end of the demolding member 6 in the above technical solution is circumferentially evenly spaced and protrudes with three supporting claws 61, and the area between any two adjacent supporting claws 61 constitutes a removal outlet for taking out the blank, so that the demolding member can be pressed downward under the action of external force so that the blank is ejected between the multiple supporting claws, and then the blank can be taken out from any removal outlet.
[0047] like Figure 6 As shown, the upper end of the forming middle mold 3 in the above technical solution is recessed with three limiting grooves 33, and the three limiting grooves 33 correspond to the three supporting claws 61 one by one. Each limiting groove 33 is used for the lower end of the supporting claw 61 to extend into, so that the horizontal limiting effect of the demolding part on the forming middle film is better.
[0048] Among them, the forming lower punch, counterweight ring, forming middle die and spring in this embodiment need to satisfy the following relationship: when the forming middle die is supported only by multiple springs, the upper end of the forming lower punch just extends into the die hole of the forming middle die, and after the counterweight ring is placed on the forming middle die, the counterweight ring can compress multiple springs to contract, and the upper end of the forming lower punch can extend to the upper end close to the die hole.
[0049] The forming method of the alloy inductor in this embodiment includes the following steps:
[0050] Step 1: First, assemble the base, the forming middle die, the forming lower punch, multiple springs and multiple adjusting bolts in place, and then place a counterweight ring on the upper end of the forming middle die, and at this time, the upper end of the forming lower punch is close to the upper end of the die hole;
[0051] Step 2: Loosen the plurality of adjusting bolts so that the plurality of adjusting bolts together push the forming middle die upward, so that the upper end of the forming lower punch moves slightly downward relative to the die hole and forms a shallow die groove (to achieve the following example). Figure 7 status);
[0052] Step 3: Add metal magnetic powder to the die cavity in advance to form a bottom, and manually insert a forming punch to compact the metal magnetic powder in the die cavity (such as Figure 8 shown);
[0053] Step 4: Remove the weight ring and place an inductor coil (such as Fig. 9 As shown, the forming middle die will move upward relative to the forming lower punch under the action of multiple springs (the depth of the die groove is deepened), and then continue to add metal magnetic powder into the die groove to completely bury the inductor coil, and then continue to insert the forming upper punch into the die hole to compact the metal magnetic powder (as shown in FIG. Fig.10 As shown, metal magnetic powder can be added after each compaction, and compaction can be continued after adding, so that the mold cavity can be filled with compacted metal magnetic powder eventually);
[0054] Step 5: Tighten the plurality of adjusting bolts so that the adjusting bolts move downward relative to the forming die to reserve downward space for the forming die, and then place the demolding piece on the upper end of the forming die, and press the demolding piece downward to press the forming die downward, so that the forming punch ejects the blank from the die hole of the forming die (such as Fig.11 As shown), tweezers can be used to take out the blank from any outlet.
[0055] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.
Claims
1. An alloy inductor forming die, characterized in that: The invention comprises a base (1), a height adjustment member (2), a forming middle die (3), a forming lower punch (4) and a forming upper punch (5), wherein the base (1) is arranged horizontally, the forming middle die (3) is arranged horizontally, and a die hole (31) penetrating from top to bottom is arranged in the middle thereof, the forming middle die (3) is mounted on the upper end of the base (1) through the height adjustment member (2), the forming lower punch (4) is placed on the upper end of the base (1), and the upper end of the forming lower punch (4) is aligned with the die hole (31) and extends The upper punch (5) is inserted into the die hole (31) to seal the lower end of the die hole (31) to form a die groove, and the die groove is used to accommodate the inductor coil and the metal magnetic powder. The lower end of the forming upper punch (5) is inserted into the die hole (31) and squeezes the metal magnetic powder under the action of external force to form a blank embedded with the inductor coil. The height adjustment member (2) is used to drive the height of the forming middle die (3) relative to the forming lower punch (4) to adjust the groove depth of the die groove or eject the blank upward.
2. The alloy inductor forming die according to claim 1, characterized in that: The forming upper punch (5) and the forming lower punch (4) are both in the shape of straight bars, and their cross sections are matched with the die hole (31) so as to be inserted into the die hole (31) in a sealed manner.
3. The alloy inductor forming die according to claim 2, characterized in that: The die hole (31) is a square hole, and the forming upper punch (5) and the forming lower punch (4) are in the shape of square bars.
4. The alloy inductor forming die according to claim 1, characterized in that: The height adjustment member (2) comprises a plurality of springs (21) and a counterweight ring (22); the upper end of the base (1) is recessed with a plurality of lower slots (11) distributed in an annular direction at intervals; the lower end of the forming middle die (3) is recessed with a plurality of upper slots (32) distributed in an annular direction at intervals; the plurality of lower slots (11), the plurality of upper slots (32) and the plurality of springs (21) correspond to each other one by one, and the corresponding lower slots (11) and upper slots (32) are aligned with each other; the two ends of each spring (21) are respectively inserted into the corresponding lower slots (11) and upper slots (32); the plurality of springs (21) jointly hold up the forming middle die (3); the counterweight ring (22) is horizontally placed at the upper end of the forming middle die (3); the weight of the counterweight ring (22) is adjusted to adjust the height of the forming middle die (3).
5. The alloy inductor forming die according to claim 4, characterized in that: The height adjustment member (2) further comprises a plurality of adjustment bolts (23). The upper end of the base (1) is provided with a plurality of threaded holes (12) spaced circumferentially therefrom. The plurality of threaded holes (12) correspond one to one with the plurality of adjustment bolts (23). The plurality of adjustment bolts (23) are vertically arranged at the edge between the base (1) and the forming die (3), and the threaded end of each adjustment bolt (23) faces downward and is threadedly connected to the corresponding threaded hole (12). The plurality of adjustment bolts (23) are tightened or loosened to adjust the horizontality and / or height of the forming die (3).
6. The alloy inductor forming die according to claim 5, characterized in that: The plurality of lower slot holes (11) and the plurality of threaded holes (12) are distributed in a staggered manner in the same circle.
7. The alloy inductor forming die according to claim 5, characterized in that: The lower slot hole (11), the upper slot hole (32), the threaded hole (12), the adjusting bolt (23) and the spring (21) are all provided in three numbers.
8. The alloy inductor forming die according to claim 5, characterized in that: It also includes a demoulding member (6), which is an annular member and is horizontally placed on the forming middle die (3) to press the forming middle die (3) downward relative to the forming lower punch (4).
9. The alloy inductor forming die according to claim 8, characterized in that: The lower end of the demoulding member (6) is provided with three support claws (61) protruding in an circumferential direction at even intervals, and the area between any two adjacent support claws (61) constitutes a take-out port for taking out the blank.
10. The alloy inductor forming die according to claim 9, characterized in that: The upper end of the forming middle die (3) is concavely provided with three limiting grooves (33), the three limiting grooves (33) correspond to the three supporting claws (61) one by one, and each limiting groove (33) is used for the lower end of the supporting claw (61) to extend into.