Fuse body processing die

Abstract

The utility model discloses a fuse fuse body processing die, including the processing station, the recess is established in the top middle place of processing station, the inner chamber bottom of recess is pasted with the die, the inner chamber of die is equipped with the solution body, the inner wall of solution body is pasted with the die, the top of die is equipped with the stamping hole required by processing, the inner chamber of recess is equipped with the positioning mechanism, the bottom of die and recess all are equipped with two knockout holes, the top of processing station is equipped with the removal punching mechanism, the bottom of processing station is equipped with the knockout mechanism, and the whole mechanism is controlled through servo motor (first, second servo motor) and cylinder cooperation, can realize the automatic connection of positioning, punching, knockout procedure, need not manual step intervention, the accurate speed control and positioning ability of servo motor ensure each procedure action accurate synchronization, can realize the continuous batch processing, and the single day production capacity is improved compared with traditional die, and the product quality fluctuation is little, and the stability is enhanced significantly.

Description

Technical Field

[0001] This utility model relates to the field of fuse melt processing technology, and in particular to a fuse melt processing mold. Background Technology

[0002] As a critical overcurrent protection component in circuit systems, the precision of the machining of the core component, the fusible element, directly determines the fuse's fusing response speed, rated current stability, and service life. In the mass production of fusible elements, the machining mold is the core equipment ensuring the dimensional accuracy and structural integrity of the fusible element; its performance has a decisive impact on production efficiency and product quality.

[0003] Currently, the following technical pain points are commonly found in fuse melt processing molds within the industry: 1. Insufficient mold positioning accuracy: Existing molds mostly rely on manual calibration or simple mechanical fixtures for fixation. During the stamping process, the mold is prone to displacement due to vibration and external force, which in turn causes problems such as deviation of the stamping hole position of the melt and irregular edges. In severe cases, it may even cause the melt to fail to meet the melting performance requirements, resulting in a low product qualification rate.

[0004] 2. Poor flexibility of punching mechanism: Traditional punching mechanisms are mostly designed with fixed positions or unidirectional (only horizontal / vertical) movement. They cannot flexibly adjust the punching position according to the number of punching holes, hole spacing, and hole diameter specifications of different types of melts. The entire punching assembly needs to be replaced frequently, which not only increases equipment costs but also prolongs production changeover time, resulting in poor versatility.

[0005] 3. Low efficiency of melt ejection and collection: Existing ejection mechanisms often use rigid ejector pins to directly push the melt. During ejection, the force is concentrated, which can easily lead to deformation and damage of the melt edges. At the same time, the ejected melt needs to be collected manually one by one, which increases the number of manual intervention steps. This not only increases labor costs, but also makes it easy to cause secondary damage due to human error, resulting in poor continuity of the production process.

[0006] 4. Low level of automation: The positioning, punching, ejection and other processes of most molds require manual operation in steps. The connection between each link is not smooth and continuous production cannot be achieved, resulting in low production efficiency and difficulty in meeting the needs of mass production. Moreover, the randomness of manual operation further amplifies the risk of product quality fluctuations. Utility Model Content

[0007] In order to overcome the shortcomings of the existing technology, one of the objectives of this utility model is to provide a mold for processing fuse melt.

[0008] One of the objectives of this utility model is achieved through the following technical solution: A fuse melt processing mold includes a processing table. A groove is formed in the middle of the top of the processing table. A mold is fitted to the bottom of the inner cavity of the groove. The inner cavity of the mold contains melt, which is fitted to the inner wall of the mold. A punching hole for processing is formed in the top of the mold. A positioning mechanism is provided in the inner cavity of the groove. Two ejection holes are formed in the bottom of both the mold and the groove. A moving punching mechanism is provided in the top of the processing table. An ejection mechanism is provided in the bottom of the processing table.

[0009] Furthermore, the positioning mechanism includes hydraulic cylinders fixedly connected to the front and rear sidewalls of the groove cavity, and clamping plates are fixedly connected to the output ends of the two hydraulic cylinders. The corresponding sides of the two clamping plates are respectively attached to the front sidewall of the mold.

[0010] Furthermore, the movable punching mechanism includes a first slide groove formed on the top of the processing table near the front side. A first slider is slidably connected to the inner cavity of the first slide groove. A vertical rod is fixedly connected to the top of the first slider. A horizontal plate is fixedly connected to the top of the vertical rod. A second slide groove is formed at the bottom of the horizontal plate. A second slider is slidably connected to the inner cavity of the second slide groove. A cylinder is fixedly connected to the bottom of the second slider. A stamping plate is fixedly connected to the output end of the cylinder. A stamping head is fixedly connected to the bottom of the stamping plate.

[0011] Furthermore, a first threaded hole is provided in the middle of the first slider, and a lead screw that matches the internal thread passes through the inner cavity of the first threaded hole. The left end of the lead screw is movably connected to the left side wall of the inner cavity of the first slide groove. A first servo motor is fixedly connected to the right side of the processing table near the front side. The right end of the lead screw passes through the right side wall of the first slide groove and is movably connected to it. The power output shaft of the first servo motor is fixedly connected to the right end of the lead screw.

[0012] Furthermore, the second slider has a second threaded hole, and a threaded rod matching its internal thread passes through the inner cavity of the second threaded hole. The front end of the threaded rod is movably connected to the front side wall of the inner cavity of the second slide groove, and the rear end of the threaded rod passes through the rear side wall of the second slide groove and is movably connected to it. A second servo motor is fixedly connected to the rear side of the cross plate, and the power output shaft of the second servo motor is fixedly connected to the rear end of the threaded rod.

[0013] Furthermore, the ejection mechanism includes a collection box fixed to the bottom of the processing table. A telescopic cylinder is fixedly connected to the middle of the bottom of the inner cavity of the collection box. A connecting plate is fixedly connected to the output end of the telescopic cylinder. Rubber blocks are fixedly connected to the top of the connecting plate near the front and rear sides.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model effectively solves the pain points of the prior art by specifically designing the positioning mechanism, the moving punching mechanism, and the ejection mechanism, and has the following significant beneficial effects: 1. Precise positioning ensures machining accuracy: By setting hydraulically driven clamping plates on the front and rear side walls of the groove cavity, the mold can be quickly clamped and firmly fixed. The hydraulic cylinder outputs a stable clamping force, which can effectively offset the vibration and external impact during the stamping process and prevent the mold from shifting. At the same time, the clamping plates fit tightly against the side walls of the mold, ensuring that the mold is always in the preset position during the processing, which significantly improves the accuracy of the melt stamping hole position and the edge regularity, and improves the product qualification rate.

[0015] 2. Flexible punching and strong versatility: The moving punching mechanism adopts a dual-axis adjustable design of "lateral + longitudinal": laterally, the first servo motor drives the lead screw to move the first slider along the first slide groove, achieving precise adjustment of the lateral position of the punching head; longitudinally, the second servo motor drives the threaded rod to move the second slider along the second slide groove, achieving precise adjustment of the longitudinal position of the punching head; combined with the cylinder driving the punching head to reciprocate up and down, the punching hole position, spacing, and number of punches can be flexibly adjusted according to the processing requirements of different specifications of melts, without the need to replace the punching components, covering common melt models, shortening changeover time, and significantly reducing equipment costs and production cycles.

[0016] 3. Smooth ejection and convenient collection: The ejection mechanism adopts a combination design of "telescopic cylinder + connecting plate + rubber block": the telescopic cylinder provides stable ejection power, the connecting plate ensures that the rubber block rises synchronously, avoiding single-point force; the flexible material of the rubber block can buffer the ejection impact force, effectively preventing the melt from deforming or breaking, and improving the melt integrity rate; at the same time, the collection box at the bottom of the processing table can directly receive the ejected melt, eliminating the manual collection link, realizing the integration of "ejection-collection", improving production efficiency and reducing labor costs.

[0017] 4. High degree of automation, suitable for mass production: The overall mechanism is controlled by servo motors (first and second servo motors) and cylinders in coordination, which can realize the automated connection of positioning, punching and ejection processes without manual intervention. The precise speed control and positioning capabilities of the servo motors ensure that the actions of each process are accurately synchronized, enabling continuous mass processing. The daily production capacity is higher than that of traditional molds, and the product quality fluctuation is small, with significantly enhanced stability.

[0018] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a perspective view of this embodiment; Figure 2 This is a schematic diagram of the lead screw component in this embodiment; Figure 3 This is a schematic diagram of the structure of the second slide groove of the component in this embodiment; Figure 4 This is a schematic diagram of the ejection mechanism in this embodiment.

[0020] In the diagram: 1. Machining table; 2. First slide groove; 3. Lead screw; 4. Vertical rod; 5. Horizontal plate; 6. Mold; 7. Groove; 8. Collection box; 9. First servo motor; 10. First threaded hole; 11. Hydraulic cylinder; 12. Clamping plate; 13. Melt; 14. Second servo motor; 15. Punching head; 16. Second slide groove; 17. Threaded rod; 18. Second slider; 19. Second threaded hole; 20. Cylinder; 21. Stamping plate; 22. First slider; 23. Connecting plate; 24. Telescopic cylinder; 25. Rubber block; 26. Ejection hole. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Specific implementation examples: The fuse melt processing mold disclosed in this embodiment has a core structure including a processing table 1, a mold 6, a positioning mechanism, a moving punching mechanism, and an ejection mechanism. The connection relationship and cooperation method of each component are as follows: Basic bearing structure: The processing table 1 is the bearing base of the whole equipment, which is made of Q235 steel plate by cutting and processing to ensure structural rigidity. A rectangular groove 7 is opened in the middle of the top of the processing table 1. The size of the groove 7 is adapted to the shape of the mold 6 and is used to place the mold 6. The mold 6 is made of Cr12MoV mold steel forging and precision machining. Its inner cavity shape is consistent with the shape of the fuse molten material to be processed. The top of the mold 6 has 3 circular punching holes (the hole diameter is set to 2mm according to the molten material specification). The bottom of the mold 6 and the groove 7 both have two circular ejection holes 26 (hole diameter 5mm). The ejection holes 26 are used to cooperate with the ejection mechanism to push the molten material. The molten material 13 is placed in the inner cavity of the mold 6. The molten material 13 is made of 0.1mm thick silver copper alloy sheet (which meets the requirements of the conductivity and fusing performance of the fuse molten material), and the molten material 13 is completely attached to the inner wall of the mold 6.

[0025] Positioning mechanism: The positioning mechanism is set in the inner cavity of the groove 7 and is used to fix the mold 6. Specifically, it includes two hydraulic cylinders 11, which are fixedly connected to the front and rear side walls of the inner cavity of the groove 7 by bolts. The hydraulic cylinders 11 are small single-rod piston cylinders (model MOB40×50). The output ends of the two hydraulic cylinders 11 are fixedly connected to clamping plates 12 by welding. The clamping plates 12 are made of wear-resistant cast iron, and a 0.5mm thick rubber pad is pasted on the side that contacts the mold 6 (to prevent the mold 6 from being pinched). The corresponding sides of the two clamping plates 12 are tightly fitted to the front side wall of the mold 6.

[0026] Moving punching mechanism: The moving punching mechanism is located on the top of the processing table 1 near the front side, and is used to achieve precise movement and punching of the punch head 15; specifically, it includes a first slide groove 2, which is a T-shaped groove formed by milling the top of the processing table 1; a first slider 22 (T-shaped structure, adapted to the first slide groove 2) is slidably connected to the inner cavity of the first slide groove 2; a first threaded hole 10 is opened in the middle of the first slider 22, and a lead screw 3 (a trapezoidal thread lead screw with a precision grade of C7) is passed through the inner cavity of the first threaded hole 10; the left end of the lead screw 3 passes through a deep groove The ball bearing is movably connected to the left side wall of the inner cavity of the first slide groove 2. The first servo motor 9 (model 60ST-M00630, rated speed 3000r / min) is fixedly connected to the right side of the processing table 1 near the front via a motor mount. The right end of the lead screw 3 passes through the right side wall of the first slide groove 2 (sealed by a sealed bearing), and the power output shaft of the first servo motor 9 is fixedly connected to the right end of the lead screw 3 via a coupling. The top of the first slider 22 is fixedly connected to a vertical rod 4 (stainless steel, height 300mm) by bolts, and the top of the vertical rod 4 is fixedly connected to a horizontal plate 5 by welding. (Aluminum alloy material, length 500mm); The bottom of the horizontal plate 5 is milled with a second groove 16 (also a T-groove), and the inner cavity of the second groove 16 is slidably connected to a second slider 18 (T-structure); the second slider 18 has a second threaded hole 19, and the inner cavity of the second threaded hole 19 is through which a threaded rod 17 (same specification as lead screw 3) that matches its internal thread is passed; the front end of the threaded rod 17 is movably connected to the front side wall of the inner cavity of the second groove 16 through a deep groove ball bearing, and the rear end of the threaded rod 17 passes through the rear side wall of the second groove 16 (sealed by a sealing bearing), and the rear side of the horizontal plate 5 is through... A second servo motor 14 (with the same model as the first servo motor 9) is fixedly connected to the motor base. The power output shaft of the second servo motor 14 is fixedly connected to the rear end of the threaded rod 17 via a coupling. A cylinder 20 (model SC63×100, working pressure 0.6MPa) is fixedly connected to the bottom of the second slider 18 via bolts. A stamping plate 21 (made of 45# steel, 20mm thick) is fixedly connected to the output end of the cylinder 20 via bolts. A stamping head 15 (made of high-speed steel, with a diameter that matches the stamping hole on the top of the mold 6) is fixedly connected to the bottom of the stamping plate 21 via a threaded connection.

[0027] Ejection Mechanism: The ejection mechanism is located at the bottom of the processing table 1 and is used to eject and collect the processed melt 13. Specifically, it includes a collection box 8 (made of stainless steel, with a rectangular structure and a top opening welded to the bottom of the processing table 1). A telescopic cylinder 24 (model TN32×50, working pressure 0.6MPa) is bolted to the middle of the bottom of the inner cavity of the collection box 8. A connecting plate 23 (made of 45# steel, 15mm thick) is bolted to the output end of the telescopic cylinder 24. Rubber blocks 25 (made of silicone, with a diameter matching the ejection hole 26 and a height of 30mm) are glued to the top of the connecting plate 23 near the front and rear sides.

[0028] II. Working process of the embodiment (including the placement method of solution 13) The specific workflow of this fuse melt processing mold is divided into four stages: "mold fixing → melt placement → precision punching → ejection and collection". The detailed steps are as follows: 1. Mold fixing stage 6 The operator first places the cleaned mold 6 smoothly into the groove 7 on the top of the processing table 1, ensuring that the bottom of the mold 6 fits snugly against the bottom of the inner cavity of the groove 7 without any deviation. Then, the two hydraulic cylinders 11 on the front and rear side walls of the groove 7 are activated. The output ends of the hydraulic cylinders 11 extend synchronously, pushing the clamping plates 12 to move towards the mold 6 until the two clamping plates 12 fit tightly against the front side wall of the mold 6. The working pressure of the hydraulic cylinders 11 is observed to reach 0.4MPa through the pressure gauge (to ensure sufficient clamping force and prevent the mold 6 from shifting during stamping). At this time, the hydraulic cylinders 11 are turned off, and the positioning and fixing of the mold 6 is completed.

[0029] 2. Melt 13 standing stage After the mold 6 is positioned and fixed, the operator first checks whether there are impurities such as iron filings and oil stains inside the mold 6 (if so, blow them clean with compressed air or wipe them with a lint-free cloth); then take the silver-copper alloy melt 13 material that has been pre-cut to the size of the mold 6 cavity (the size is exactly the same as the length and width of the mold 6 cavity, and the thickness is 0.1mm), hold the edge of the melt 13 with both hands, and slowly put it into the cavity of the mold 6; during the placement process, ensure that the four sides of the melt 13 are completely attached to the inner wall of the mold 6, without wrinkles or gaps (the attachment between the melt 13 and the inner wall of the mold 6 can be observed visually, and if there is a slight deviation, gently adjust it with tweezers); after confirming that the melt 13 is placed flat, the placement operation of the melt 13 is completed, and the punching stage is ready.

[0030] 3. Precision punching stage Based on the punching hole position parameters of the melt 13 to be processed (e.g., three punching holes are evenly distributed along the length of the melt 13, with a spacing of 20mm), the hole position coordinates are input through the equipment control system (electrically connected to the first servo motor 9, the second servo motor 14, and the cylinder 20): Lateral position adjustment: Start the first servo motor 9, which drives the lead screw 3 to rotate clockwise. The lead screw 3 engages with the first threaded hole 10 of the first slider 22, driving the first slider 22 to move to the left along the first slide groove 2. Through position feedback from the control system (such as encoder feedback), when the punch head 15 is laterally aligned with the first punch hole, the first servo motor 9 stops running, completing the lateral positioning.

[0031] Longitudinal position adjustment: Start the second servo motor 14, which drives the threaded rod 17 to rotate counterclockwise. The threaded rod 17 engages with the second threaded hole 19 of the second slider 18, driving the second slider 18 to move backward along the second slide groove 16. Similarly, through position feedback, when the stamping head 15 is precisely aligned longitudinally with the first stamping hole, the second servo motor 14 stops running, completing the precise alignment of the stamping head 15.

[0032] Punching action: Start cylinder 20, the output end of cylinder 20 extends downward quickly, pushing the stamping plate 21 and the bottom stamping head 15 downward. The stamping head 15 passes through the stamping hole at the top of the mold 6 in sequence and acts on the melt 13, punching a hole with the same diameter as the stamping head 15 on the melt 13. After punching is completed (punching time is about 0.5s), the output end of cylinder 20 automatically resets, driving the stamping head 15 upward to disengage from the mold 6.

[0033] Multi-hole continuous punching: Repeat the above horizontal and vertical adjustment and punching actions to complete the processing of the remaining two punching holes on the melt 13 in sequence; after all holes are processed, the first servo motor 9 and the second servo motor 14 drive the punching head 15 to reset to the initial position (near the front right corner of the processing table 1) and wait for the next punching.

[0034] 4. Top-out collection phase After all the punched holes of the melt 13 are processed, the telescopic cylinder 24 in the collection box 8 is activated. The output end of the telescopic cylinder 24 extends upward, driving the connecting plate 23 and the two rubber blocks 25 at the top to rise synchronously. During the rising process, the rubber blocks 25 pass through the ejection holes 26 at the bottom of the groove 7 and the ejection holes 26 at the bottom of the mold 6 in sequence, and slowly contact the bottom of the processed melt 13 in the inner cavity of the mold 6. As the telescopic cylinder 24 continues to extend, the rubber blocks 25 push the melt 13 upward until the melt 13 completely leaves the inner cavity of the mold 6 and falls into the collection box 8 below under the action of gravity. After the melt 13 falls into the collection box 8, the telescopic cylinder 24 is activated to reset, driving the connecting plate 23 and the rubber blocks 25 back to the initial position. Then the hydraulic cylinder 11 is activated again to make the clamping plate 12 disengage from the mold 6. The operator takes out the mold 6, cleans it, and then enters the next processing cycle.

[0035] Through the above embodiments, precise and efficient processing of fuse elements can be achieved. The placement of the molten body 13 is simple and easy to operate, and the processing process is highly automated, which can effectively ensure the processing accuracy of the molten body 13 and the product qualification rate.

[0036] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A fuse melt processing mold, including a processing table (1), characterized in that: The processing table (1) has a groove (7) at the top center. A mold (6) is attached to the bottom of the inner cavity of the groove (7). A melt (13) is provided in the inner cavity of the mold (6). The melt (13) is attached to the inner wall of the mold (6). A punching hole required for processing is provided at the top of the mold (6). A positioning mechanism is provided in the inner cavity of the groove (7). Two ejection holes (26) are provided at the bottom of both the mold (6) and the groove (7). A moving punching mechanism is provided at the top of the processing table (1). An ejection mechanism is provided at the bottom of the processing table (1).

2. The fuse link processing die of claim 1, wherein: The positioning mechanism includes hydraulic cylinders (11) fixedly connected to the front and rear side walls of the inner cavity of the groove (7). The output ends of the two hydraulic cylinders (11) are fixedly connected to clamping plates (12). The corresponding sides of the two clamping plates (12) are respectively attached to the front side wall of the mold (6).

3. The fuse link processing die of claim 1, wherein: The movable punching mechanism includes a first slide groove (2) opened on the top of the processing table (1) near the front side. A first slider (22) is slidably connected to the inner cavity of the first slide groove (2). A vertical rod (4) is fixedly connected to the top of the first slider (22). A horizontal plate (5) is fixedly connected to the top of the vertical rod (4). A second slide groove (16) is opened at the bottom of the horizontal plate (5). A second slider (18) is slidably connected to the inner cavity of the second slide groove (16). A cylinder (20) is fixedly connected to the bottom of the second slider (18). A stamping plate (21) is fixedly connected to the output end of the cylinder (20). A stamping head (15) is fixedly connected to the bottom of the stamping plate (21).

4. The fuse link processing die of claim 3, wherein: The first slider (22) has a first threaded hole (10) in the middle. The inner cavity of the first threaded hole (10) is through which a lead screw (3) that matches its internal thread passes. The left end of the lead screw (3) is movably connected to the left side wall of the inner cavity of the first slide groove (2). The right side of the processing table (1) is fixedly connected to the front side of the first servo motor (9). The right end of the lead screw (3) passes through the right side wall of the first slide groove (2) and is movably connected to it. The power output shaft of the first servo motor (9) is fixedly connected to the right end of the lead screw (3).

5. The fuse link processing die of claim 4, wherein: The second slider (18) has a second threaded hole (19), and a threaded rod (17) that matches its internal thread passes through the inner cavity of the second threaded hole (19). The front end of the threaded rod (17) is movably connected to the front side wall of the inner cavity of the second slide groove (16), and the rear end of the threaded rod (17) passes through the rear side wall of the second slide groove (16) and is movably connected to it. The rear side of the horizontal plate (5) is fixedly connected to a second servo motor (14), and the power output shaft of the second servo motor (14) is fixedly connected to the rear end of the threaded rod (17).

6. The fuse melt processing mold according to claim 1, characterized in that: The ejection mechanism includes a collection box (8) fixed to the bottom of the processing table (1). A telescopic cylinder (24) is fixedly connected to the middle of the bottom of the inner cavity of the collection box (8). A connecting plate (23) is fixedly connected to the output end of the telescopic cylinder (24). Rubber blocks (25) are fixedly connected to the top of the connecting plate (23) near the front and rear sides.

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