General positioning and adjusting tool for silicone rubber potting equipment

CN224896944UActive Publication Date: 2026-10-27CHINA SOUTH IND GRP SHANGHAI ELECTRIC CONTROL RES INST
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Patent Information

Application Number
CN202522368856.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-07
Publication Date
2026-10-27
Estimated Expiration
2035-11-07

AI Technical Summary

Technical Problem

该技术方案采用了真空基座,需要依靠设置有硅胶圈形成真空密封区域,在实现真空基座和定位销定位配合时,需要通过真空吸孔抽真空为了保证真空密封,还需要在真空定位孔及真空定位槽的边缘安装硅胶垫,不仅增加了治具制作成本还对部件劳损变形提出了要求,进一步对产品的形状尺寸也提出了要求,使得该技术通用性不佳

Benefits of technology

1、本实用新型定位销、定位槽、定位孔等可以灵活调整的定位孔,可根据产品需要独立更换、组合、选择调整,支持从单一定位到多点定位,从粗定位到精定位的不同工作方式,满足不同工件的定位需求,实现了产品通用性层面的提升;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of general positioning adjustment jig of silicone rubber potting equipment, belong to silicone rubber potting technical field.Silicone rubber potting equipment general positioning adjustment jig includes: jig bottom plate, positioning groove, positioning hole, positioning pin and carrying handle.Positioning groove is used to place product, positioning hole is matched with detachable positioning pin, realizes product accurate positioning, the distribution, quantity and type of positioning groove, positioning hole, positioning pin can be adjusted according to product, so that jig is widely used.Jig bottom plate reserves standardization hole position, it is convenient to process additional positioning hole or groove according to new product demand, realizes quick extension.Jig is carried by carrying handle.
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Description

Technical Field

[0001] This utility model relates to the field of silicone rubber potting technology, specifically to a universal positioning and adjustment fixture for silicone rubber potting equipment. Background Technology

[0002] Silicone rubber potting technology has a wide and important application in many fields such as electronics, automobiles, and aerospace. Its core function is to build a reliable protective barrier for precision components, protecting them from various environmental factors such as humidity, vibration, and high temperature, thereby ensuring the stability and long service life of the components.

[0003] Traditional potting fixtures are often custom-designed for a single product, resulting in extremely poor versatility. Different types and specifications of products require specially designed fixtures, which not only significantly extends the product development cycle, as each new product launch necessitates redesigning the fixture with new time and effort, but also substantially increases production costs. The accumulated costs from fixture design and material expenses to manufacturing costs place a heavy financial burden on companies. More importantly, these inflexible fixtures struggle to adapt quickly to product upgrades or changes in production demands, severely limiting production efficiency and failing to meet the demands of modern industrial production for high efficiency and flexibility.

[0004] More specifically, potting fixtures also lack versatility. As businesses expand and product varieties increase, the types of products that need to be processed on the production line also increase. However, existing fixtures are difficult to extend or modify simply to adapt to new product potting requirements. Once product specifications change, it is often necessary to redesign and manufacture entirely new fixtures. This not only results in a huge waste of resources but also makes the production process cumbersome and complex, further affecting the continuity and stability of production.

[0005] Currently, the relevant existing technologies include: Chinese patent application CN206869503U discloses a combined vacuum processing fixture, including a vacuum base and a positioning fixture. A silicone ring forms a vacuum-sealed area on the upper surface of the vacuum base. A vacuum suction hole is provided on the vacuum base, connecting to the interior of the vacuum-sealed area, and a positioning pin is provided on the outer side of the silicone ring. The positioning fixture has a positioning hole to cooperate with the positioning pin for positioning with the vacuum base. Vacuum is drawn through the vacuum suction hole, and the silicone ring seals the fixture, ensuring a tight fit between the positioning fixture and the vacuum base. The positioning fixture also has a workpiece positioning groove, with a vacuum positioning hole at the bottom and a vacuum positioning channel connecting to the vacuum suction hole on the positioning fixture for vacuum positioning of the workpiece. This technical solution uses a vacuum base, which requires the use of silicone rings to form a vacuum sealing area. When the vacuum base and the positioning pin are positioned and fitted, a vacuum is required through a vacuum suction hole. In order to ensure a vacuum seal, silicone pads also need to be installed on the edges of the vacuum positioning hole and the vacuum positioning groove. This not only increases the cost of fixture manufacturing, but also puts forward requirements on the wear and deformation of the parts, and further puts forward requirements on the shape and size of the product, making the technology less versatile.

[0006] Therefore, the existing technology has the drawback of poor jig versatility and needs to be improved. Utility Model Content

[0007] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a universal positioning and adjustment fixture for silicone rubber potting equipment.

[0008] The universal positioning and adjustment fixture for silicone rubber potting equipment provided by this utility model includes: a fixture base plate, a positioning groove, multiple positioning holes, and multiple positioning pins. The positioning grooves are in multiple sets and are formed on the surface of the fixture base plate. The product is placed in the coarse positioning through the positioning grooves. The multiple positioning holes are distributed on the base plate of the fixture, and the positioning pins that can be flexibly disassembled and installed can achieve precise positioning of the product on the base plate of the fixture. The positioning hole includes: a first positioning hole and / or a second positioning hole. The locating pin includes: a first locating pin and / or a second locating pin. The first positioning hole and the first positioning pin are matched and used for positioning the product perpendicular to the plane of the fixture base plate; The second positioning hole and the second positioning pin are matched and used for positioning in the plane direction of the product fixture base plate.

[0009] Preferably, when the product is placed into the positioning groove, the product is positioned by utilizing the surface transition fit; The positioning pin, combined with the positioning hole, limits and positions the product in different orthogonal directions.

[0010] Preferably, the locating pin is made of stainless steel or steel with a hard chrome plating.

[0011] Preferably, the base plate of the fixture has pre-reserved standardized holes, and positioning holes or positioning grooves are added using the standardized holes according to different product processing conditions.

[0012] Preferably, the surface of the fixture base plate is anodized.

[0013] Preferably, the base plate of the fixture is made of aluminum alloy.

[0014] Preferably, the base plate of the fixture is formed by CNC machining.

[0015] Preferably, the universal positioning and adjustment fixture for the silicone rubber potting equipment further includes: a handling handle. The handling handle is installed on the side edge of the fixture base plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The positioning pins, positioning grooves, positioning holes, etc. of this utility model can be flexibly adjusted and can be independently replaced, combined, selected and adjusted according to product needs. It supports different working modes from single positioning to multi-point positioning, and from coarse positioning to fine positioning, to meet the positioning needs of different workpieces and improve the versatility of the product. 2. This utility model provides an "interface" for adding new modules in the future through the standard hole array and reserved hole positions of the base plate, so that functional expansion can be achieved without reprocessing the base plate, thus realizing the scalability at the structural level; 3. This utility model achieves rapid positioning and adjustment through modular design, thereby improving production efficiency; 4. This utility model can meet the accuracy requirements of products with high-precision positioning needs. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the overall structure and positioning hole arrangement of this utility model; Figure 2 This is a schematic diagram of the overall structure and positioning pin installation of this utility model; Figure 3 This is a structural diagram of the first positioning pin of this utility model; Figure 4 This is a schematic diagram of the second locating pin of this utility model.

[0018] The diagram shows: Detailed Implementation

[0019] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0020] like Figures 1 to 4 As shown, this utility model embodiment provides a universal positioning and adjustment fixture for silicone rubber potting equipment, including: a fixture base plate 101, a positioning groove 102, positioning holes, positioning pins, and a handling handle. The fixture base plate 101 has a positioning groove 102 for placing the product. Positioning holes are distributed on the fixture base plate 101, and, in conjunction with the flexibly detachable and installable positioning pins, achieve precise positioning of the product on the fixture base plate 101. A handling handle 107 is installed on the side edge of the fixture base plate 101 to facilitate handling and placement of the fixture. The distribution, quantity, and type of the positioning holes and positioning pins are adjusted according to product positioning requirements. The fixture base plate 101 has pre-reserved standardized holes, and additional positioning holes or grooves can be machined according to new product requirements for rapid expansion. Utilizing the potting adjustment method in the potting equipment allows for the simultaneous potting of multiple different types of products, saving product placement time and ensuring potting accuracy.

[0021] Furthermore, the fixture base plate 101 serves as a basic support platform, and its surface is anodized to improve wear resistance. The fixture base plate 101 is made of lightweight, high-strength material, balancing durability and portability; specifically, it can be made of high-strength aluminum alloy. In a more preferred embodiment, the fixture base plate 101 can be CNC machined to ensure the accuracy of the positioning holes.

[0022] Furthermore, the installation methods differ depending on the product: For products requiring lower positioning accuracy or with protrusions at the bottom, the product can be directly placed into the positioning groove 102, and stable positioning of the product can be achieved by using the surface transition fit. For products requiring higher precision positioning or with mismatched shapes, positioning pins combined with positioning holes are used to limit and position the product in different orthogonal directions, ensuring installation reliability and positioning accuracy.

[0023] Specifically, such as Figures 1 to 4 As shown, the locating pin is mounted on the fixture, which is placed in a vacuum potting apparatus during the potting process. The shapes of the locating pin and locating hole can be selected according to the product characteristics. The first positioning hole 103 and the first positioning pin 105 are matched and are suitable for positioning the product when it is placed perpendicular to the plane of the fixture base plate 101.

[0024] The second positioning hole 104 and the second positioning pin 106 are matched and are suitable for positioning the mounting reference in the plane direction of the product fixture base plate 101.

[0025] In a more preferred embodiment, the locating pin is made of wear-resistant stainless steel or steel with a hard chrome plating to ensure wear resistance and durability.

[0026] Furthermore, the potting process using the universal positioning and adjustment fixture of the silicone rubber potting equipment of this utility model includes: Step S1: Confirm product positioning standards; Step S2: Product preparation; Step S3: Install the locating pin; Step S4: Position the product on the fixture base plate 101; Step S5: Control the injection of silicone rubber through the equipment program to ensure uniform potting and no air bubbles.

[0027] At the beginning and end of the process, the universal positioning and adjustment fixture for the silicone rubber potting equipment is placed on the equipment workbench or removed from the equipment workbench by means of the handling handle 107.

[0028] Compared with existing technologies, this utility model's technical solution eliminates the need for vacuum sealing, thus eliminating the need for auxiliary equipment (such as vacuum pumping equipment) during use. Furthermore, the fitting accuracy of the corresponding mating parts (positioning pins and positioning holes) is a transition fit, meaning that only basic geometric accuracy needs to be ensured during part processing. This facilitates processing without incurring additional costs or waste, while fully meeting the requirements for high scalability and adaptability—meeting the needs of product manufacturing and processing in various fields such as electronics, automotive, and aerospace. Its technical principles do not restrict the shape and size of the product, and the fixture can be adapted to meet product requirements, demonstrating broad market prospects and application value. In addition, due to the use of lightweight, high-strength materials, balancing durability and portability, the maintenance cost of this technical solution is significantly reduced.

[0029] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A universal positioning and adjustment fixture for silicone rubber potting equipment, characterized in that, include: The fixture includes a base plate (101), a positioning groove (102), multiple positioning holes, and multiple positioning pins. The positioning groove (102) has multiple sets and is formed on the surface of the fixture base plate (101). The product is roughly positioned and placed through the positioning groove (102). The plurality of positioning holes are distributed on the fixture base plate (101), and the positioning pins that can be flexibly disassembled and installed can realize the precise positioning of the product on the fixture base plate (101); The positioning holes include: a first positioning hole (103) and / or a second positioning hole (104). The positioning pins include: a first positioning pin (105) and / or a second positioning pin (106). The first positioning hole (103) and the first positioning pin (105) are matched and used to position the product perpendicular to the plane of the fixture base plate (101); The second positioning hole (104) and the second positioning pin (106) are matched and used for positioning in the plane direction of the product fixture base plate (101).

2. The universal positioning and adjustment fixture for silicone rubber potting equipment according to claim 1, characterized in that, When the product is placed into the positioning groove (102), the product is positioned by using the surface transition fit; The positioning pin, combined with the positioning hole, limits and positions the product in different orthogonal directions.

3. The universal positioning and adjustment fixture for silicone rubber potting equipment according to claim 2, characterized in that, The positioning pin is made of stainless steel or steel with a hard chrome plated surface.

4. The universal positioning and adjustment fixture for silicone rubber potting equipment according to claim 2, characterized in that, The fixture base plate (101) has pre-reserved standardized holes. Depending on the processing of different products, positioning holes or positioning grooves can be added using the standardized holes.

5. The universal positioning and adjustment fixture for silicone rubber potting equipment according to claim 2, characterized in that, The surface of the fixture base plate (101) is anodized.

6. The universal positioning and adjustment fixture for silicone rubber potting equipment according to claim 2, characterized in that, The fixture base plate (101) is made of aluminum alloy.

7. The universal positioning and adjustment fixture for silicone rubber potting equipment according to claim 2, characterized in that, The fixture base plate (101) is formed by CNC machining.

8. The universal positioning and adjustment fixture for silicone rubber potting equipment according to claim 2, characterized in that, Also includes: A handling handle (107) is mounted on the side edge of the fixture base plate (101).

Citation Information

Patent Citations

  • Modular vacuum processing tool

    CN206869503U