Fuse body point flux device

Abstract

A flux-dispensing device for fuses includes: a worktable; a moving assembly including a gantry, a first linear module, a second linear module, and a third linear module; and a flux-dispensing assembly including a flux gun and a product carrier. The flux gun is mounted on a slide of the second linear module, and the product carrier is mounted on a slide of the third linear module. The product carrier includes a substrate placement plate on a base. A substrate containing fuses is placed on one side of the substrate placement plate, and the substrate is enclosed on that side. A limiting member is provided on the other side of the substrate placement plate to lock and limit the substrate. A heating block is provided inside the base to heat and maintain the temperature of the substrate. An array of fuses is placed on the substrate, and the flux gun dispenses flux onto the fuses on the substrate. The purpose of this invention is to automatically dispense flux onto fuses placed on a substrate, greatly improving flux-dispensing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fuse manufacturing technology, and more specifically to a fluxing device for fuse elements. Background Technology

[0002] A fuse is a protective electrical device that breaks the circuit by melting its fusible element when the current exceeds a specified value for a certain period of time, due to the heat generated by the fuse itself. Currently, fuses are widely used in various circuits, such as the overall circuitry of electric vehicles, as protective devices against short circuits and overcurrents. The manufacturing process of a fuse typically involves several steps in forming the fuse element. The fuse element, for example, is a sheet-like copper strip. A groove is usually formed on the copper strip, and flux is injected into the groove. Then, a coating mechanism coats solder onto the flux in the groove on the copper strip. The flux helps the solder melt more evenly in the groove. The molten solder, with the assistance of the flux, spreads and adheres to the metal, forming a conductive and mechanically strong solder joint after cooling and solidification.

[0003] The current method of applying flux to fuses is generally manual. The operator holds a flux gun, aligns the syringe with the groove on the copper strip, and applies flux one strip at a time to a tray containing multiple copper strips. Because the grooves are small and numerous, and the flux gun has wiring, manual application requires holding the gun in one hand and using a fixing pen in the other to hold the copper strip in place. This manual operation is time-consuming, labor-intensive, inefficient, and prone to missed or incorrect applications. Utility Model Content

[0004] The purpose of this invention is to provide a flux application device for fusible links, which can automatically apply flux to fusible links placed on a substrate, thereby greatly improving flux application efficiency.

[0005] To achieve the above objectives, the solution of this utility model is: A fluxing device for fused body points, comprising: Workbench; The moving component includes a gantry, a first linear module, a second linear module, and a third linear module. The gantry is mounted on a workbench, the first linear module is mounted on top of the gantry, the second linear module is mounted on a slide of the first linear module and is perpendicular to the first linear module; the third linear module is mounted on the workbench and located at the bottom of the gantry, and is perpendicular to the first linear module. The flux application assembly includes a flux gun and a product carrier. The flux gun is mounted on a slide of a second linear module, and the product carrier is mounted on a slide of a third linear module. The product carrier includes a substrate placement plate on a base. A substrate loaded with fuses is placed on one side of the substrate placement plate, and the substrate is surrounded on that side of the substrate placement plate. A limiting member is provided on the other side of the substrate placement plate to lock and limit the substrate. A heating block is provided in the base to heat and keep the substrate warm. A fuse array is placed on the substrate, and the flux gun applies flux to the fuses on the substrate.

[0006] Furthermore, the limiting component includes a support block, a locking block, a connector, and an elastic support member. The support block is connected and fixed on the substrate placement plate. The front end of the locking block faces the substrate. The connector is connected to the rear end of the locking block and passes through the support block to limit its movement. The elastic support member is sleeved on the connector and supports the locking block between the rear end of the locking block and the support block. The locking block is compressed, retracted, and popped out with the help of the elastic support member to lock the substrate. The substrate, after being locked, is limited on the substrate placement plate.

[0007] Furthermore, the substrate is square, and a square limiting groove is formed in the top surface of the substrate placement plate. One corner of the substrate is inserted into one side of the substrate placement plate, and the corner of the substrate is blocked. The limiting member is located opposite the corner of the substrate that has been inserted. The front end of the locking block forms a locking edge that allows the corner of the substrate to be locked in.

[0008] Furthermore, the connecting parts are two screws fixed to the rear end of the locking block. The screws pass through the support block and are then limited to the rear end face of the support block by nuts. The elastic support is a spring sleeved on the screws.

[0009] Furthermore, the flux gun includes a shell, a heating tube, a loading syringe, a needle cap, and an end cap. The heating tube is covered on the outside of the loading syringe, and the shell is installed on the outside of the heating tube. The needle cap is located at the bottom of the loading syringe, and a needle tip is provided at the bottom of the needle cap. The end cap is movably connected to the upper end of the loading syringe and can seal and close. The upper part of the loading syringe is also connected to an air inlet pipe, and the outer end of the air inlet pipe is connected to an air compressor. The air compressor is connected to a controller, and the controller controls the air pressure of the air compressor. The air inlet pipe blows air and pressurizes the flux in the loading syringe, and the flux is squeezed out from the needle tip.

[0010] Furthermore, the flux gun also includes a mounting bracket, a hand-tightening bolt, and a connector. The mounting bracket is fixed to the outer casing, the hand-tightening bolt is fixed to the mounting bracket and can be manually rotated, and the rotated hand-tightening bolt presses against the end cap. The connector is connected to the heating element to supply power to it.

[0011] Furthermore, the first linear module is set along the X-axis, the second linear module is set along the Y-axis, and the third linear module is set along the Z-axis. The flux gun moves along the Y-axis under the drive of the second linear module, moves along the X-axis under the drive of the first linear module, and the product carrier moves along the Z-axis under the drive of the third linear module.

[0012] Furthermore, the workbench is equipped with two third linear modules, each of which is equipped with a product carrier.

[0013] With the above structure, the flux-applying equipment for fuse elements of this invention, through the cooperation of three linear modules, allows the flux-applying gun to dispense flux vertically and horizontally, while the product carrier below can move back and forth. This enables sequential flux application to the array of fuses arranged on the product carrier. Furthermore, the product carrier can directly position and heat-insulate the substrate containing the fuse elements, ensuring stable flux application. This invention can automatically apply flux to fuse elements placed on a substrate, greatly improving flux application efficiency and ensuring flux quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial enlarged view of the substrate placement plate in this utility model; Figure 3 This is a schematic diagram of the disassembled substrate placement plate in this utility model; Figure 4 This is an exploded view of the structure of the midpoint flux gun of this utility model; Figure 5 This is a cross-sectional view of the flux gun at the center of this utility model. Detailed Implementation

[0015] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0016] Combination Figures 1 to 5 As shown, this utility model discloses a fluxing device for fused bodies, characterized in that it includes: a workbench 1, a moving component, and a fluxing component.

[0017] The moving assembly includes a gantry frame 11, a first linear module 2, a second linear module 3, and a third linear module 4. The gantry frame 11 is mounted on the workbench 1. The first linear module 2 is mounted on the top of the gantry frame 11. The second linear module 3 is mounted on the slide (not shown in the figure) of the first linear module 2 and is perpendicular to the first linear module 2. The third linear module 4 is mounted on the workbench 1 and located at the bottom of the gantry frame 11 and is perpendicular to the first linear module 2.

[0018] The flux application assembly includes a flux gun 5 and a product carrier. The flux gun 5 is mounted on a slide 31 of the second linear module 3, and the product carrier is mounted on a slide 41 of the third linear module 4. The product carrier includes a substrate placement plate 62 mounted on a base 61. A substrate 63 containing a fuse is placed on one side of the substrate placement plate 62, and the substrate 63 is surrounded on that side of the substrate placement plate 62. A limiting member 7 is provided on the other side of the substrate placement plate 62 to lock and limit the substrate 63. A heating block 64 is provided inside the base 61 to heat and keep the substrate 63 warm. The heating block 64 contains a heating rod and a K-type thermocouple. The heating block 64 is located below the substrate placement plate 62. The substrate placement plate 62 and the substrate 63 are made of thermally conductive material. The purpose of setting the heating block 64 at the bottom of the substrate 63 is that if the substrate 63 is cool, the flux from the flux gun 5 will easily solidify directly when it is applied to the pressure groove of the fuse, and then the tip of the flux gun 5 will stick together, obstructing subsequent flux dispensing and preventing continuous flux application. During the flux application operation, multiple fuses (not shown in the figure) are placed in an array on the substrate 63, and the flux gun 5 can sequentially apply flux to the fuses on the substrate 63.

[0019] like Figure 1 , Figure 2 As shown, the limiting member 7 includes a support block 71, a locking block 72, a connecting member, and an elastic supporting member. In this embodiment, the connecting member consists of two screws 73 fixed to the rear end of the locking block, and the elastic supporting member is a spring 74 sleeved on the screws 73. The support block 71 can be locked to the substrate placement plate 62. The front end of the locking block 71 faces the substrate 63. The connecting member is connected to the rear end of the locking block 71 and passes through the support block 71 to limit its movement. The elastic supporting member is sleeved on the connecting member and supports the rear end of the locking block and the support block. That is, after the screws 73 pass through the support block 71, they are limited to the rear end face of the support block 71 by a nut 731. The spring 74 is provided on the screws 73 and supports the rear end of the locking block 71 and the support block 71. With the above structure, the card block 72 can be compressed, retracted and popped out with the help of the elastic support to block the substrate 63. The substrate 63 after being blocked can be limited on the substrate placement plate 62, and the substrate 63 can be positioned during the automatic flux dispensing operation.

[0020] In this embodiment, the substrate 63 is square, and a square limiting groove 621 is formed in the top surface of the substrate placement plate 62. One corner of the substrate 63 is inserted into one side of the substrate placement plate 62, and the corner of the substrate 63 is surrounded by the corner of the limiting groove 621. The limiting member 7 is located opposite the corner of the substrate 63 that has been inserted. The front end of the locking block 72 forms a locking edge (right angle edge) that allows the corner of the substrate 63 to be locked in.

[0021] Combination Figure 4 , Figure 5 As shown, the flux gun 5 includes a housing 51, a heating tube 52, a loading syringe 53, a needle cap 54, and an end cap 55. The heating tube 52 is wrapped around the outside of the loading syringe 53, and the housing 51 is mounted on the outside of the heating tube 52. The needle cap 54 is located at the bottom of the loading syringe 53, and a needle tip 541 is provided at the bottom of the needle cap 54. The end cap 55 is movably connected to the upper end of the loading syringe 53 and can seal it. In use, flux, such as rosin, is added to the loading syringe 53, and the heating tube 52 heats the loading syringe 53 to melt the flux. The upper part of the loading syringe 53 is also connected to an air inlet pipe (not shown in the figure). The outer end of the air inlet pipe is connected to a compressor mechanism, which is connected to a controller (not shown in the figure). The controller can control the outlet air pressure of the compressor mechanism (the controller includes a pressure gauge, a pressure regulating valve, a back suction valve, etc.), so that the air inlet pipe can blow air and pressurize the flux in the loading syringe 53. Under the action of air pressure, the flux is squeezed out from the needle tip, realizing vector blowing of flux to point it onto the fused body. The flux gun 5 also includes a fixing frame 56, a hand-tightening bolt 57, and a connector 58. The fixing frame 56 is fixed to the outer shell 51. The hand-tightening bolt 57 is fixed to the fixing frame 56 and can be manually rotated. After rotation, the hand-tightening bolt 57 can press against the end cap 55. When it is necessary to open the end cap 55 for adding material, the hand-tightening bolt 57 can be rotated in the opposite direction to contact the end cap 55. The connector 58 can be connected to an external power source and is connected to the heating tube 52 to supply power.

[0022] In this embodiment, the workbench 1 is equipped with two third linear modules 4, each with a product carrier. This allows one product carrier to apply flux while the other carrier is mounting a substrate, with the substrate already arrayed with flux-applied fuses, thus improving efficiency. Alternatively, two second linear modules 3 can be installed on the first linear module 2, allowing two sets of flux-applied guns 5 to operate simultaneously, depending on usage requirements.

[0023] When the flux-applying device for fuse elements of this utility model is in operation, the first linear module 2 is set along the X-axis, the second linear module 3 is set along the Y-axis, and the third linear module 4 is set along the Z-axis. The flux-applying gun moves along the Y-axis under the drive of the second linear module, and the flux-applying gun 5 can move along the X-axis under the drive of the first linear module 2. The product carrier moves along the Z-axis under the drive of the third linear module 4. The moving components realize the three-axis movement between the flux-applying gun and the product carrier through the combination of the three linear modules. The flux-applying gun 5 can move longitudinally back and forth to realize continuous flux application and lateral horizontal movement. The movement of the product carrier forms a vertical path relative to the horizontal movement of the flux-applying gun 5, thereby realizing the sequential application of flux to the fuse elements (pressure grooves) arranged in an array on the substrate 63. The automated operation is achieved by controlling the movement path and operation frequency of each linear module.

[0024] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A fluxing device for fused body points, characterized in that, include: Workbench; The moving component includes a gantry, a first linear module, a second linear module, and a third linear module. The gantry is mounted on a workbench, the first linear module is mounted on top of the gantry, and the second linear module is mounted on a slide of the first linear module. The second linear module is perpendicular to the first linear module. The third linear module is set on the workbench and located at the bottom of the gantry frame. The third linear module is set perpendicular to the first linear module. The flux application assembly includes a flux gun and a product carrier. The flux gun is mounted on a slide of a second linear module, and the product carrier is mounted on a slide of a third linear module. The product carrier includes a substrate placement plate on a base. A substrate loaded with fuses is placed on one side of the substrate placement plate, and the substrate is surrounded on that side of the substrate placement plate. A limiting member is provided on the other side of the substrate placement plate to lock and limit the substrate. A heating block is provided in the base to heat and keep the substrate warm. A fuse array is placed on the substrate, and the flux gun applies flux to the fuses on the substrate.

2. The fluxing device for fused body points as described in claim 1, characterized in that: The limiting component includes a support block, a locking block, a connector, and an elastic support member. The support block is fixed to the substrate placement plate. The front end of the locking block faces the substrate. The connector is connected to the rear end of the locking block and passes through the support block to limit its movement. The elastic support member is sleeved on the connector and supports the locking block between the rear end of the locking block and the support block. The locking block is compressed, retracted, and popped out with the help of the elastic support member to lock the substrate. The substrate is then limited on the substrate placement plate after being locked.

3. The fluxing device for fused body points as described in claim 2, characterized in that: The substrate is square, and a square limiting groove is formed in the top surface of the substrate placement plate. One corner of the substrate is inserted into one side of the substrate placement plate, and the corner of the substrate is blocked. The limiting member is located opposite the corner of the substrate that has been inserted. The front end of the locking block forms a locking edge that allows the corner of the substrate to be locked in.

4. A fluxing device for fused body points as described in claim 2 or 3, characterized in that: The connecting parts are two screws fixed to the rear end of the locking block. The screws pass through the support block and are then limited by nuts to the rear end face of the support block. The elastic support is a spring sleeved on the screws.

5. The fluxing device for fuse points as described in claim 1, characterized in that: The flux gun includes a shell, a heating tube, a loading syringe, a needle cap, and an end cap. The heating tube is covered on the outside of the loading syringe, and the shell is installed on the outside of the heating tube. The needle cap is located at the bottom of the loading syringe, and a needle tip is provided at the bottom of the needle cap. The end cap is movably connected to the upper end of the loading syringe and can seal it. The upper part of the loading syringe is also connected to an air inlet pipe, and the outer end of the air inlet pipe is connected to an air compressor. The air compressor is connected to a controller, which controls the air pressure of the air compressor. The air inlet pipe blows air and pressurizes the flux in the loading syringe, and the flux is squeezed out from the needle tip.

6. The fluxing device for fuse points as described in claim 5, characterized in that: The flux gun also includes a mounting bracket, a hand-tightening bolt, and a connector. The mounting bracket is fixed to the outer casing, the hand-tightening bolt is fixed to the mounting bracket and can be manually rotated. After being rotated, the hand-tightening bolt presses against the end cap, and the connector is connected to the heating element to supply power to it.

7. The fluxing device for fuse points as described in claim 1, characterized in that: The first linear module is set along the X-axis, the second linear module is set along the Y-axis, and the third linear module is set along the Z-axis. The flux gun moves along the Y-axis under the drive of the second linear module, moves along the X-axis under the drive of the first linear module, and the product carrier moves along the Z-axis under the drive of the third linear module.

8. The fluxing device for fuse points as described in claim 1, characterized in that: The workbench is equipped with two third linear modules, and each third linear module is equipped with a product carrier.

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