A high efficiency compacting device and method for fuze packaging

Abstract

This invention discloses a high-efficiency clamping device and sealing method for fuse encapsulation, belonging to the field of fuse assembly technology. It includes a base, a positioning plate, and a clamping rod. The base holds the fuse, and the positioning plate is fixed to the base and spaced vertically from it. The positioning plate has multiple threaded holes corresponding to each encapsulation module. At least a portion of the clamping rod has a threaded section that passes through the threaded hole, allowing for contact clamping of the encapsulation module by adjusting the up-and-down movement of the clamping rod when encapsulating it onto the fuse. This high-efficiency clamping device and sealing method for fuse encapsulation can control the compression amount, clamping force, and other encapsulation design requirements of each encapsulation module through the up-and-down movement of the clamping rod, effectively ensuring the encapsulation accuracy of each fuse module and avoiding excessive clamping force or compression deviations. It features simple structure, convenient assembly, easy operation, accurate control, high efficiency, and high yield.

Description

Technical Field

[0001] This invention belongs to the field of fuse assembly technology, specifically relating to a high-efficiency clamping device and encapsulation method for fuse packaging. Background Technology

[0002] In the manufacturing process of fuse products, in order to ensure the normal operation of the internal circuit board under harsh mechanical environments such as impact and vibration, and to prevent damage to components or connection failure, the current common process is to encapsulate the circuit board module as a whole in each cavity of the fuse body to achieve a reinforcement effect.

[0003] However, when encapsulating modules in a cavity, each module encapsulation has strict process requirements for compression, clamping force, and dimensions. If the clamping force is too large, it will cause internal stress concentration, resulting in reduced audio reliability and unstable performance. If the clamping force is insufficient, displacement may occur during the flow of potting compound, which will also lead to product scrap.

[0004] Currently, the clamping devices used have difficulty in accurately controlling the compression amount, clamping force, and size. They can only encapsulate individual modules one by one, which is cumbersome, time-consuming, inefficient, unreliable, unstable, and inaccurate. Summary of the Invention

[0005] In view of one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides a high-efficiency clamping device and packaging method for fuse packaging, which can solve the problems of low reliability, instability, poor accuracy and low efficiency in the fuse packaging process.

[0006] To achieve the above objectives, one aspect of the present invention provides a high-efficiency clamping device for fuse encapsulation, comprising: The base is used to hold the fuse; A positioning plate is fixed on the base and is spaced vertically from the base. The positioning plate has multiple threaded holes corresponding to each packaging module. The clamping rod has at least a threaded section that passes through the threaded hole, so that the encapsulation module can be pressed into contact by adjusting the up and down of the clamping rod when the encapsulation module is encapsulated on the fuse.

[0007] As a further improvement of the present invention, the clamping force required for the encapsulation module during encapsulation is: After the clamping rod contacts the packaging module, the tightening torque T that each clamping rod needs to apply is:

[0008] in, The thread pitch of the fourth threaded section of the clamping rod; The friction coefficient of the threaded section pair; The thread pitch diameter of the thread segment; The thread profile angle of the thread segment.

[0009] As a further improvement of the invention, a clamping sleeve is also included, which covers one end of the clamping rod near the base.

[0010] As a further improvement of the present invention, the clamping sleeve is made of polytetrafluoroethylene.

[0011] As a further improvement of the present invention, the clamping sleeve is provided with an internal thread, and the threaded section extends to one end of the clamping rod near the base, so as to install the clamping sleeve on the clamping rod by means of a threaded connection.

[0012] As a further improvement of the present invention, the base is provided with at least one boss for placing the fuse; the boss is provided with multiple positioning shafts for the installation and positioning of the fuse.

[0013] As a further improvement of the present invention, the outer diameter of the boss is not less than the outer diameter of the fuse; The width of the positioning plate is 1 / 3 to 1 / 2 of the outer diameter of the fuse.

[0014] As a further improvement of the present invention, a plurality of support rods are provided between the base and the positioning plate, one end of the support rods being fixedly connected to the base and the other end being fixedly connected to the positioning plate.

[0015] As a further improvement of the present invention, the end of the clamping rod opposite to the base is provided with a screwing groove that cooperates with a screwing auxiliary tool.

[0016] Another aspect of the present invention provides a packaging method for fuse encapsulation, wherein the packaging module is compressed using the aforementioned high-efficiency compression device for fuse encapsulation, comprising the following steps: (1) Place the fuse on the base and place each encapsulation module in the corresponding position of the fuse; (2) Rotate the clamping rod downwards until the bottom of the clamping rod contacts the packaging module and then stops; (3) According to the packaging design requirements of the packaging module, rotate the clamping rod downward again to make precise adjustment of the clamping rod; If the required compression amount is Then, tighten the clamping rod until the distance between the upper end face of the clamping rod and the upper end face of the positioning plate is... ; The distance between the upper end face of the clamping rod and the upper end face of the positioning plate after step (2) is completed; If the clamping force is required to reach the design value, the tightening torque is calculated based on the thread parameters of the clamping rod, and the corresponding tightening torque is applied to the clamping rod. (4) Pot the encapsulation module with adhesive. After the adhesive has cured, rotate the clamping rod in the opposite direction until it is completely separated from the encapsulation module. Then remove the fuze to complete the encapsulation of the encapsulation module on the fuze.

[0017] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0018] In summary, the beneficial effects of the above-described technical solutions conceived by this invention compared with the prior art include: (1) The efficient clamping device and encapsulation method for fuze encapsulation of the present invention provides multiple threaded holes on the positioning plate corresponding to each encapsulation module, and inserts the threaded section of the clamping rod into the threaded hole. By adjusting the up and down movement of the clamping rod, the compression amount, clamping force and other encapsulation design requirements of each encapsulation module are controlled respectively, which effectively ensures the encapsulation accuracy of each fuze module and avoids phenomena such as excessive clamping force and excessive compression amount.

[0019] (2) The efficient pressing device and packaging method for fuze packaging of the present invention has the advantages of simple structure, convenient assembly, convenient operation, accurate control, high efficiency and high yield compared with conventional packaging methods. It effectively solves the problems of low reliability, instability, poor accuracy and low efficiency in the fuze module packaging process, and has good application prospects and promotion value. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the high-efficiency clamping device for fuse encapsulation in an embodiment of the present invention; Figure 2 This is a schematic diagram of the base structure in an embodiment of the present invention; Figure 3 This is a schematic diagram of the positioning plate structure in an embodiment of the present invention; Figure 4 This is a schematic diagram of the clamping rod structure in an embodiment of the present invention; Figure 5 This is a schematic diagram of the overall structure of the packaging module during packaging in an embodiment of the present invention; Figure 6 This is a front structural diagram of the packaging module during packaging in an embodiment of the present invention; In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. base; 101. first mounting hole; 102. boss; 103. positioning shaft; 2. support rod; 3. positioning plate; 301. second mounting hole; 302. threaded hole; 4. clamping rod; 401. threaded section; 402. screw groove; 5. clamping sleeve; 6. screw; 7. fuse; 8. encapsulation module. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0023] In the description of this invention, it should be understood that, unless otherwise expressly specified and limited, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0024] Furthermore, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0027] Example: Please see Figures 1-6 The high-efficiency clamping device for fuze encapsulation in a preferred embodiment of the present invention includes a base 1, a positioning plate 3, and a clamping rod 4. The base 1 provides an encapsulation platform for the fuze, the positioning plate 3 provides support for the clamping rod 4, and the clamping rod 4 provides pre-tightening force for the encapsulation of the encapsulation module 8 on the fuze 7, thereby improving the encapsulation accuracy.

[0028] It is known that, as Figure 5 As shown, the fuse 7 in this invention has a groove on its top, and multiple identical or different encapsulation modules 8 need to be set and encapsulated in the groove.

[0029] Specifically, such as Figure 1 As shown, in the preferred embodiment, the base 1 is a flat plate structure used to place the fuse 7 and provide a packaging platform for the fuse 7. Preferably, at least one boss 102 is provided on the base 1, and at least a plurality of positioning shafts 103 are provided on the boss 102 to place the fuse 7 on the boss 102. The positioning shafts 103 cooperate with the inner hole of the fuse 7 to position the fuse 7, ensuring that the fuse 7 is correctly positioned and that the fuse 7 will not shake or move during the packaging and pressing process.

[0030] like Figure 2 As shown, two protrusions 102 are spaced apart on the base 1, and a fuse 7 can be set on each protrusion 102 to simultaneously encapsulate the encapsulation module 8 on both fuses 7. Of course, the number of protrusions 102 can be increased from two to the required number to improve work efficiency by increasing the number of fuses 7 placed.

[0031] Preferably, the outer diameter of the boss 102 is not less than 1 / 2 of the outer diameter of the fuse 7; the spacing between two adjacent bosses 102 is determined according to the size of the fuse 7, so as to ensure that after each fuse 7 is placed on the boss 102, the two adjacent fuses 7 are spaced apart and do not interfere with each other.

[0032] like Figure 2As shown, two positioning shafts 103 are symmetrically arranged on each boss 102, and the fitting clearance between each positioning shaft 103 and the inner hole of the fuse 7 is 0.02mm~0.05mm.

[0033] Furthermore, such as Figure 1 and Figure 3 As shown in the figure, in a specific embodiment of the present invention, the positioning plate 3 is spaced above the base 1 and fixed to the base 1 by the support rod 2; at the same time, a plurality of threaded holes 302 are provided on the positioning plate 3 corresponding to each boss 102, and each threaded hole 302 is provided corresponding to each encapsulation module 8, and the spacing between them is consistent with the spacing between each encapsulation module 8.

[0034] Preferably, the width of the positioning plate 3 is 1 / 3 to 1 / 2 of the outer diameter of the fuse 7, which facilitates subsequent glue application and avoids the positioning plate 3 being too wide and obstructing the glue application line of sight, thus affecting the glue application operation.

[0035] Preferably, a first mounting hole 101 is provided at both ends of the base 1, and a second mounting hole 301 is provided at both ends of the positioning plate 3, so that one end of the support rod 2 is connected to the positioning plate 3 and the other end is connected to the base 1 by screws 6.

[0036] Furthermore, in the specific embodiment of the present invention, the clamping rod 4 is provided corresponding to each threaded hole 302. Each clamping rod 4 is provided with at least a threaded section 401, and the threaded section 401 is inserted into the threaded hole 302. The clamping rod 4 can be adjusted up and down through the rotational engagement between the threaded hole 302 and the threaded section 401. During encapsulation and potting, the clamping rod 4 contacts and presses against the corresponding encapsulation module 8 to provide the required preload force to the encapsulation module 8.

[0037] like Figure 5 In the preferred embodiment shown, two fuses 7 are placed on the base 1. Each fuse 7 needs to be encapsulated with four encapsulation modules 8, so a total of eight clamping rods 4 are provided. The eight clamping rods 4 are arranged one-to-one with the eight encapsulation modules 8 to adjust the preload of each encapsulation module 8 respectively.

[0038] Preferably, a clamping sleeve 5 is connected and installed at one end of the clamping rod 4 near the base 1. The clamping sleeve 5 is preferably made of polytetrafluoroethylene so that when the encapsulation module 8 is clamped, the clamping sleeve 5 directly contacts the encapsulation module 8, which facilitates the contact clamping of the encapsulation module 8 and demolding after potting.

[0039] In actual installation, an internal thread is provided inside the clamping sleeve 5, and the threaded section 401 of the clamping rod extends continuously to the end of the clamping rod 4 near the base 1, such as... Figure 4 As shown, the clamping sleeve 5 is connected and installed on the clamping rod 4 by means of a threaded connection.

[0040] Preferably, a screwing groove 402, such as a "one", "ten" or "rice" groove, is provided at the end of the clamping rod 4 away from the clamping sleeve 5 to cooperate with a screwing auxiliary tool, so as to facilitate the rotation and up and down adjustment of the clamping rod 4 using the auxiliary tool.

[0041] Preferably, the clamping force required for the encapsulation module 8 during encapsulation is: Then, after the clamping rod 4 contacts the packaging module 8, the tightening torque T that each clamping rod 4 still needs to apply is: (1) (1) in, The thread pitch of the threaded section 401 of the clamping rod 4; The friction coefficient for the threaded section 401 is given. The thread pitch diameter is 401 for the threaded section; The thread angle of the 401 thread segment.

[0042] Furthermore, such as Figure 5 and Figure 6 As shown, the present invention also relates to a packaging method for a high-efficiency clamping device for fuse packaging, which specifically includes the following steps: (1) Place the fuse 7 on the base 1 and place each encapsulation module 8 in the corresponding position of the fuse 7.

[0043] In a preferred embodiment, the fuse 7 is placed on the boss 102, and the two positioning shafts 103 on the boss 102 are inserted into the inner hole of the fuse 7 to ensure that the fuse 7 is correctly positioned and does not wobble.

[0044] (2) Rotate the clamping rod 4 downward until the bottom of the clamping rod 4 contacts the encapsulation module 8 and then stop.

[0045] Preferably, after rotation stops, the distance from the upper end of each clamping rod 4 to the upper surface of the positioning plate 3 is measured. .

[0046] like Figure 6 As shown, after each clamping rod 4 contacts each encapsulation module 8, the distance from the upper end of the clamping rod 4 to the upper surface of the positioning plate 3 is respectively... ; (3) According to the clamping design requirements of the encapsulation module 8, rotate the clamping rod 4 again to make precise adjustment of the clamping rod 4; If the design requirement is that the clamping force reaches the design value F, the tightening torque T is calculated according to the thread parameters of the clamping rod in formula (1), and the corresponding tightening torque is applied to the clamping rod 4 at the position of the tightening groove 402.

[0047] When the design requirement is a compression amount of When this is the case, tighten the clamping rod 4 until the distance from the upper end of the clamping rod 4 to the upper surface of the positioning plate 3 is [missing information]. .

[0048] In a preferred embodiment of the present invention, after the eight clamping rods 4 are precisely adjusted, the distances from the upper ends of the clamping rods 4 to the upper surfaces of the positioning plates 3 are respectively... .

[0049] (4) Pot the encapsulation module 8. After the adhesive has cured, rotate the clamping rod 4 in the opposite direction until it is separated from the encapsulation module 8. Then take out the fuse 7 to complete the encapsulation of the encapsulation module 8 on the fuse 7.

[0050] The high-efficiency clamping device and packaging method for fuse packaging of the present invention have the advantages of simple structure, convenient assembly, convenient operation, accurate control, high efficiency and high yield compared with conventional packaging methods. It effectively solves the problems of low reliability, instability, poor accuracy and low efficiency in the packaging process of fuse modules, and has good application prospects and promotion value.

[0051] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A high-efficiency clamping device for fuse encapsulation, characterized in that, include: The base is used to hold the fuse; A positioning plate is fixed on the base and is spaced vertically from the base. The positioning plate has multiple threaded holes corresponding to each packaging module. The clamping rod has at least a threaded section that passes through the threaded hole, so that the encapsulation module can be pressed into contact by adjusting the up and down of the clamping rod when the encapsulation module is encapsulated on the fuse.

2. The high-efficiency clamping device for fuse encapsulation according to claim 1, characterized in that, The required clamping force during the encapsulation of the packaging module is: After the clamping rod contacts the packaging module, the tightening torque T that each clamping rod needs to apply is: in, The thread pitch of the fourth threaded section of the clamping rod; The friction coefficient of the threaded section pair; The thread pitch diameter of the thread segment; The thread profile angle of the thread segment.

3. The high-efficiency clamping device for fuse encapsulation according to claim 1, characterized in that, It also includes a clamping sleeve, which covers one end of the clamping rod near the base.

4. The high-efficiency clamping device for fuse encapsulation according to claim 3, characterized in that, The compression sleeve is made of polytetrafluoroethylene.

5. The high-efficiency clamping device for fuse encapsulation according to claim 3 or 4, characterized in that, The clamping sleeve has an internal thread, and the threaded section extends to one end of the clamping rod near the base so that the clamping sleeve can be installed on the clamping rod by means of a threaded connection.

6. The high-efficiency clamping device for fuse encapsulation according to claim 1, characterized in that, The base is provided with at least one boss for placing the fuse; the boss is provided with multiple positioning shafts for the installation and positioning of the fuse.

7. The high-efficiency clamping device for fuse encapsulation according to claim 6, characterized in that, The outer diameter of the boss is not less than the outer diameter of the fuze; The width of the positioning plate is 1 / 3 to 1 / 2 of the outer diameter of the fuse.

8. The high-efficiency clamping device for fuse encapsulation according to claim 1, characterized in that, Multiple support rods are provided between the base and the positioning plate. One end of each support rod is fixedly connected to the base, and the other end is fixedly connected to the positioning plate.

9. The high-efficiency clamping device for fuse encapsulation according to claim 1, characterized in that, The end of the clamping rod facing away from the base is provided with a screwing groove that cooperates with a screwing auxiliary tool.

10. A packaging method for fuse encapsulation, wherein the encapsulation module is pressed using the high-efficiency pressing device for fuse encapsulation as described in any one of claims 1 to 9, characterized in that, Includes the following steps: (1) Place the fuse on the base and place each encapsulation module in the corresponding position of the fuse; (2) Rotate the clamping rod downwards until the bottom of the clamping rod contacts the packaging module and then stops; (3) According to the packaging design requirements of the packaging module, rotate the clamping rod downward again to make precise adjustment of the clamping rod; If the required compression amount is Then, tighten the clamping rod until the distance between the upper end face of the clamping rod and the upper end face of the positioning plate is... ; The distance between the upper end face of the clamping rod and the upper end face of the positioning plate after step (2) is completed; If the clamping force is required to reach the design value, the tightening torque is calculated based on the thread parameters of the clamping rod, and the corresponding tightening torque is applied to the clamping rod. (4) Pot the encapsulation module with adhesive. After the adhesive has cured, rotate the clamping rod in the opposite direction until it is completely separated from the encapsulation module. Then remove the fuze to complete the encapsulation of the encapsulation module on the fuze.

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