CN103038021B - 传感器壳体 - Google Patents

传感器壳体 Download PDF

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CN103038021B
CN103038021B CN201080067869.8A CN201080067869A CN103038021B CN 103038021 B CN103038021 B CN 103038021B CN 201080067869 A CN201080067869 A CN 201080067869A CN 103038021 B CN103038021 B CN 103038021B
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sensor housing
plastic body
described sensor
boss
described plastic
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CN103038021A (zh
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C·朗格尔
S·托伯特
J·盖佩尔
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Pepperl and Fuchs SE
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    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for 
    • B23P11/005—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by expanding or crimping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
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    • B29C65/567—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
    • B29C65/568—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined using a swaging operation, i.e. totally deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
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    • B29C66/05—Particular design of joint configurations
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    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1226—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least one bevelled joint-segment
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    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/55—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles sealing elements being incorporated into the joints, e.g. gaskets
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential joints
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24—Housings ; Casings for instruments
    • G01D11/245—Housings for sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/542—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles joining hollow covers or hollow bottoms to open ends of container bodies
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    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B17/00—Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other and involving plastic deformation
    • F16B17/008—Connecting constructional elements or machine parts by a part of or on one member entering a hole in the other and involving plastic deformation of sheets or plates mutually

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

本发明涉及一种用于将塑料体插入到传感器壳体的开口中的方法，其中，所述开口包括一个具有边缘的侧面，其方式是，在所述边缘上构造一个凸缘状的隆起并且在所述侧面上构造一个用于支撑所述塑料体的凸肩形凸台，在所述凸台上在放置塑料体之前放入一个条带形的密封装置，所述塑料体这样支撑在所述传感器壳体的侧面的凸台上，使得所述塑料体的侧面与所述传感器壳体的侧面端对端地相互连接，借助于所述传感器壳体的侧面的至少一部分与所述塑料体的侧面的一部分之间的变形产生一个形状配合的、弹性地支持的连接，从而使得在连接部位处在所述传感器壳体的和所述塑料体的上侧上在所述传感器壳体与所述塑料体之间形成基本上无接缝并且基本上无阶梯的过渡部。

Description

传感器壳体
技术领域
本发明涉及一种用于插入塑料体的方法和一种传感器壳体。
背景技术
塑料向金属壳体中的插入在技术方面是一个重要的组成部分，特别是在需要进行光学检查的制造工艺的领域中。在食品工程领域中，在这种连接上常常提出针对物理和化学特性的高要求，特别是这种复合物需满足可靠性、密封性的高要求并且遵守相应的标准。此外，这种连接遭受强的-40℃至120℃范围内的交变温度并且遭受很多Bar范围内的压力波动。为了能够满足高的要求，在传统方法中借助于机械的固定器件(例如螺钉和夹子)和/或借助于化学的密封器件(大多呈粘接剂的形式)保护壳体与塑料体之间的连接部位。但是其缺点是，放入壳体边缘与塑料体的彼此贴靠的侧面的密封面之间的粘接介质和/或密封介质包含不期望的成分，它们可能挥发并且不能足够地抵抗老化。另一方面，机械式密封器件在制造方面是费事的并且特别是在清洁时导致很多卫生缺点。
此外，值得期望的是，特别是在两种材料之间的接口的表面上构造尽可能平坦地、无接缝的过渡部，以便抑制物质的嵌顿。为此，一般在相互连接之后需要费事的机械后处理步骤，以便确保所需的表面特性。
发明内容
在该背景下，本发明的任务在于，提供一种用于插入塑料体的方法和一种传感器壳体，它们分别降低现有技术的缺点。
所述任务通过下述技术方案中的用于插入塑料体的方法和传感器壳体解决。本发明的有利的构型是后述说明的主题。
根据本发明技术方案的主题，提出了一种用于将塑料体插入到传感器壳体的开口中的方法，其中，所述塑料体和所述传感器壳体分别具有表面，其中，所述开口包括一个具有边缘的侧面，并且，在所述传感器壳体的表面的边缘上构造一个凸缘状的隆起并且在所述侧面上在垂直于所述传感器壳体的表面的方向上构造一个用于支撑所述塑料体的凸肩形凸台，并且在所述凸台上在放置塑料体之前放入一个条带形的密封装置，并且所述塑料体这样支撑在所述传感器壳体的侧面的凸台上，使得所述塑料体的侧面与所述传感器壳体的侧面端对端地相互连接，并且借助于所述传感器壳体的侧面的至少一部分与所述塑料体的侧面的一部分之间的变形产生一个形状配合的、弹性地支持的连接并且在使用了变形之后在所述传感器壳体的表面上不再存在隆起，从而使得在连接部位处在所述传感器壳体的和所述塑料体的表面上在所述传感器壳体与所述塑料体之间形成基本上无接缝并且基本上无阶梯的过渡部。
根据本发明技术方案的主题，提出了一种传感器壳体，其具有表面，所述传感器壳体包括一具有传感器壳体的边缘和侧面的开口，其垂直于该传感器壳体的表面具有缩进的轮廓和凸肩形的凸台，一支撑在所述凸台上的条带形的密封装置和一具有表面和侧面的塑料体，其中，所述塑料体的侧面部分地端对端地靠置在所述传感器壳体的侧面上并且所述塑料体的下侧部分地支撑在所述密封装置上，并且在所述传感器壳体的表面上不存在隆起，并且在构造在所述传感器壳体的表面和所述塑料体的表面上的连接部位处在所述传感器壳体与所述塑料体之间形成基本上无接缝并且基本上无阶梯的过渡部。
本发明方法的一个优点在于，两种不同的材料可在无附加的机械或化学固定器件的情况下彼此接合。此外，至少在其表面上抑制接缝和阶梯的形成。由此可以构造无粘接材料的复合物，其很大程度上对于大气气体和/或液体来说是不可透过的。特别是在食品领域中应用的情况下，表面的很大程度上的无接缝性和无粘接材料性抑制物质的不期望的沉积或粘接材料的挥发，这会使得该复合物的卫生或无菌特性变差。此外，由于变形过程结合两个侧面的匹配的轮廓导向而在无迄今为止必要的附加后处理步骤如抛光或铣削的情况下在传感器壳体的上侧与塑料体的上侧之间实现无阶梯的过渡部。
在所述方法的一个优选的进一步方案中，借助于所述变形在所述传感器壳体的侧面上构造一缩进的轮廓，以便将塑料体相对于传感器壳体固定以防止垂直移动。此外有利的是，传感器壳体与塑料体之间的密封装置由弹性材料如维通、橡胶或复合塑料构成，以便产生弹性的形状配合，所述形状配合基本上垂直于金属表面起作用。在此有利的是，塑料体的外边缘适当的倒棱，以便有助于传感器壳体的侧凹式侧面的形成。根据另一进一步构型有利的是，塑料体的侧面也设有阶梯形的凸台。在此，所述凸台的轮廓经过适当选择，从而在变形时仅仅塑料体的凸台的下侧支撑在密封装置上并且塑料体的下侧的至少一部分在传感器的边缘之间在变形过程中可回弹。
通过该构造特别是可以在使用透明塑料的情况下提供用于检查加工过程的可能性，而不会由于与化学或机械侵蚀性材料直接接触而损坏传感器。此外，通过选择适当的塑料可以将电场或磁场穿过一般盘形构成的塑料体发射或接收。这种场一般被金属屏蔽。
本申请人通过实验发现，在本发明的具有放入的塑料体的壳体中，密封装置优选构造为弹性的、环绕的条带。此外，密封装置的弹性特性和几何构型可以视要求而定并且根据变形时的作用力适当地进行选择。
附图说明
下面将参考附图详细阐述本发明。在此，同类的部件用相同的标记表示。附图中：
图1是具有安置的塑料体的传感器壳体的示意性剖视图，其处于未接合状态中；
图2是根据第一实施方式处于连接状态中的示意性剖视图；
图3是根据另一实施方式处于连接状态中的示意性剖视图；
图4是具有嵌入的塑料体的传感器壳体的俯视图，其处于接合状态中。
具体实施方式
图1的剖视图示出传感器壳体10的未连接的布置状态，其具有构造在传感器壳体10的边缘20上的隆起15。此外，所述传感器壳体10包括一个具有阶梯形的凸台35的侧面30。密封装置40支撑在所述凸台35上。此外，所述传感器壳体10还包括一个具有处于内部的塑料体50的开口17。所述塑料体50包括一个具有阶梯形的凸台60的侧面55。此外，在所述塑料体50的上边缘上构造一个倒棱65。根据所示的实施方式，所述凸台60的平行于塑料体50的表面的延伸被选择得比传感器壳体10的凸台35的延伸稍大，所述传感器壳体特别是由金属制成。这是优选的，因为所述塑料体在压入时或在变形过程时可稍稍回弹。此外，所述凸台35在垂直于表面的方向上的延伸相应于塑料体50的凸台55的厚度和密封装置40的厚度。根据所示的实施方式，塑料体50的侧面55和传感器壳体10的侧面对接地设置。
在图2中示出传感器壳体10的和塑料体50的根据本发明的实施方式，其处于连接状态中，也就是在使用了变形方法之后。在此，传感器壳体10的侧面30与塑料体50的侧面55很大程度上形状配合地连接。在传感器壳体10的表面上不再存在如图1所示的隆起15，因为传感器壳体10的相应的金属在形成该传感器壳体10的侧棱边的缩进区段75的情况下形成一个具有倒棱65的形状配合部。此外，塑料体50的表面与传感器壳体10的表面在连接部位70处形成无阶梯的和无接缝的过渡部。通过所述变形使得所述密封装置40弹性地变形并且现在将塑料体50在垂直于表面的方向上压到传感器壳体10的侧面30的缩进区段75上。此外，借助于所述密封装置40将所述侧面30相对于侧面55在形成缝隙78的情况下密封。视环绕的密封装置40的尺寸和弹性而定并且根据所使用的金属-和塑料面的材料特性的几何尺寸以及侧棱边上的阶梯形凸台的几何结构，不仅可调节塑料体相对于传感器壳体的压紧压力，而且也可以调节所述侧面上的缝隙的尺寸。本申请人通过试验发现，尽管在密封装置与传感器壳体的侧棱边之间存在竖直的缝隙，仍可以在塑料体与传感器壳体之间的过渡区域中确保可靠的密封。
根据图3的实施方式，传感器壳体10的侧面30的区域中和塑料体50的侧面55的区域中的剖视图示出这两个面之间的完全的形状配合。据此，由密封装置完全填充所述凸台35与所述凸台60之间的空间。
图4示出借助于本发明的方法制造的传感器壳体10的俯视图，其具有插入的塑料体50。在连接部位70处，传感器壳体10和塑料体50形成几乎无接缝并且几乎无阶梯的过渡部。尽管沿着连接部位70的曲率半径小，但是通过对于传感器壳体10使用的金属的相应可延展性也确保的是，借助于所述变形也在所述表面上的棱边区域中形成很大程度上无接缝并且绝大程度上无阶梯的过渡部，而无需对表面进行机械再处理。此外，可以在无需使用机械或化学固定器件的情况下提供可靠的、可承受机械载荷的密封连接，该密封连接特别是适合于在食品工程领域中应用。

Claims (12)

1.一种用于将塑料体(50)插入到传感器壳体(10)的开口(17)中的方法，其中，所述塑料体(50)和所述传感器壳体(10)分别具有表面，其中，所述开口(17)包括一个具有边缘(20)的侧面(30)，并且，
在所述传感器壳体(10)的表面的边缘(20)上构造一个凸缘状的隆起(15)并且在所述侧面(30)上在垂直于所述传感器壳体(10)的表面的方向上构造一个用于支撑所述塑料体(50)的凸肩形凸台(35)，
并且在所述凸台(35)上在放置塑料体(50)之前放入一个条带形的密封装置(40)，
并且所述塑料体(50)这样支撑在所述传感器壳体(10)的侧面(30)的凸台(35)上，使得所述塑料体(50)的侧面(55)与所述传感器壳体(10)的侧面(30)端对端地相互连接，
并且借助于所述传感器壳体(10)的侧面(30)的至少一部分与所述塑料体(50)的侧面(55)的一部分之间的变形产生一个形状配合的、弹性地支持的连接并且在使用了变形之后在所述传感器壳体(10)的表面上不再存在隆起，从而使得在连接部位(70)处在所述传感器壳体(10)的和所述塑料体(50)的表面上在所述传感器壳体(10)与所述塑料体(50)之间形成基本上无接缝并且基本上无阶梯的过渡部。
2.根据权利要求1所述的方法，其特征在于，借助于所述变形在所述传感器壳体(10)的侧面上构造一缩进的轮廓。
3.根据权利要求1或2所述的方法，其特征在于，在所述塑料体(50)的侧面(55)上构造一阶梯形的凸台(60)。
4.根据权利要求1或2所述的方法，其特征在于，通过所述传感器壳体(10)与所述塑料体(50)之间的密封装置(40)产生一弹性的形状配合部，所述形状配合部将所述塑料体(50)基本上垂直地朝所述壳体表面的表面的方向顶压。
5.根据权利要求1或2所述的方法，其特征在于，在所述传感器壳体(10)和所述塑料体(50)之间构造一无粘接材料的复合体，该复合体对于液体来说是不可透过的。
6.根据权利要求1或2所述的方法，其特征在于，在所述传感器壳体(10)和所述塑料体(50)之间构造一无粘接材料的复合体，该复合体对于大气气体来说是不可透过的。
7.根据权利要求1或2所述的方法，其特征在于，在所述塑料体(50)的表面上在与所述传感器壳体(10)的表面连接的连接部位(70)处形成一个无阶梯的并且无接缝的过渡部。
8.一种传感器壳体(10)，其具有表面，所述传感器壳体包括
一具有传感器壳体(10)的边缘(20)和侧面(30)的开口(17)，其垂直于该传感器壳体(10)的表面具有缩进的轮廓和凸肩形的凸台(35)，
一支撑在所述凸台(35)上的条带形的密封装置(40)和一具有表面和侧面(55)的塑料体(50)，其中，所述塑料体(50)的侧面(55)部分地端对端地靠置在所述传感器壳体(10)的侧面(30)上并且所述塑料体(50)的下侧部分地支撑在所述密封装置(40)上，并且在所述传感器壳体(10)的表面上不存在隆起，并且在构造在所述传感器壳体(10)的表面和所述塑料体(50)的表面上的连接部位(70)处在所述传感器壳体(10)与所述塑料体(50)之间形成基本上无接缝并且基本上无阶梯的过渡部。
9.根据权利要求8所述的传感器壳体(10)，其特征在于，所述传感器壳体(10)包括一开口(17)，所述开口具有设置在其中的塑料体(50)。
10.根据权利要求8或9所述的传感器壳体(10)，其特征在于，所述密封装置(40)构造为弹性环绕的条带。
11.根据权利要求8或9所述的传感器壳体(10)，其特征在于，所述连接部位(70)在所述传感器壳体(10)的侧面与所述塑料体(50)的侧面之间形成基本上无粘接材料的过渡部。
12.根据权利要求8或9所述的传感器壳体(10)，其特征在于，所述塑料体(50)的表面与所述传感器壳体(10)的表面在所述连接部位(70)处形成无阶梯的和无接缝的过渡部。
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