200923325 九、發明說明： 【發明所屬之技術領域】 本發明是涉及一種測量裝置，尤其涉及一種進行平面 度測量的測量裝置。 【先前技術】 筆記型電腦前、後蓋注塑成型及烤漆過程中，平面产 測量一直是此類工序的管控難點，而平面的變形程度又= 接影響到產品的品質，因此平面度測量就顯得格外重要。 習知的測量方法是將被測面板立於治具一側，被測面板靠 近上下邊緣的地方貼緊治具的兩定位銷，藉由被測面板與 治具基準面之間的間隙位置來判定其平面度是否符合規格 要求，即被測面板與治具基準面之間出現間隙即判定該被 測面板合若被測面板與治具基準面接冑，而與兩定位 銷或其中任—定位銷不接觸’則判定該被測面板嚴重變 形。此測量方法應用不方便且測量結果不量化，如若♦庐 知變化量還需配合厚度規測量，即藉由插人間隙的厚度^ 數值來幫助界定，此種方法測量效率低、測量誤差大。 【發明内容】 鑒於以上内容，有必要挺祉 ^ 要楗供一種便於測量且測量結果 精確的平面度測量裝置。 T平面度測里裝置’用於測量平板型待測元件的平 —又’ ^括-用於支撐該待測^件的―邊的平台、一垂直 安裝於該平台的支架及一用曰 用於測置待測元件的平面度而安 裝於支架的適當位置處的測奮糸，旦/ 里糸V充5亥測$糸統包括一測 200923325 .夏部、—帶可彈性伸縮的表桿的測量表及—操控該測量部 ，的微調兀件，該測量部的一端抵頂於該測量表的表 才:’測量時，擰緊該微調元件使其推動該測量部向該待測 =件方向移動而與待測元件接觸，並使抵頂於該測量部的 ΐ桿也向㈣測元件方向彈性伸出，該測量表根據表桿伸 、，的長度顯不測1部的移動距離，從而測得該待測元件的 杜j相^ °阿移動地抵頂於測量表，藉由調整微調元 /〜動測里部的運動’使其與待測元件接觸，從而直接 規察測量表的變化量即可得到測量部的位移，進而可得出200923325 IX. Description of the Invention: [Technical Field] The present invention relates to a measuring device, and more particularly to a measuring device for performing flatness measurement. [Prior Art] In the process of injection molding and baking of front and back covers of notebook computers, plane production measurement has always been a difficult point of control of such processes, and the degree of deformation of the plane is affected by the quality of the product, so the flatness measurement appears. Especially important. The conventional measuring method is to stand the test panel on the side of the jig, and the two sides of the test panel are close to the upper and lower edges, and the two positioning pins of the jig are attached, and the gap between the tested panel and the reference surface of the jig is used. Determine whether the flatness meets the specification requirements, that is, a gap exists between the tested panel and the reference surface of the fixture, that is, the panel to be tested is connected to the reference surface of the fixture, and the two positioning pins or the middle-position If the pin does not touch, it is determined that the panel to be tested is severely deformed. This measurement method is inconvenient to use and the measurement results are not quantified. If the amount of change is also required to be measured with the thickness gauge, that is, by the thickness of the insertion gap ^ value to help define, this method has low measurement efficiency and large measurement error. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a flatness measuring device that is easy to measure and accurate in measurement results. The T flatness measuring device 'for measuring the flat type of the component to be tested is flat-and----the platform for supporting the side of the device to be tested, the bracket vertically mounted on the platform, and a user In the measurement of the flatness of the component to be tested and installed at the appropriate position of the bracket, the test / 糸 糸 充 充 充 亥 亥 包括 包括 包括 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 The measuring table and the fine-tuning element for controlling the measuring portion, one end of the measuring portion abuts the table of the measuring table: 'When measuring, tighten the fine-tuning element to push the measuring part to the test piece The direction is moved to contact with the component to be tested, and the mast that is abutted against the measuring portion is also elastically extended in the direction of the (four) measuring component, and the measuring table shows the moving distance of the one portion according to the length of the extension of the crown, thereby It is measured that the D-phase of the device to be tested is moved to the top of the measurement table, and the movement of the inner portion of the micro-modulation element is adjusted to make it contact with the component to be tested, thereby directly observing the measurement table. The amount of change can be obtained by the displacement of the measuring part, which in turn
待測兀件的平面變形量，從而方便、快速地得到測量結果。 【實施方式】 'D 月，…、圖1 ,本發明平面度測量裝置的較佳實施方4 包：：操作架10、-第-定…、-第二定位部50 8〇’;。里糸統70及-微調元件（本實施方式中為微調螺尚 操，架。ίο包括一平台12、一垂直安裝於平台12的 Ί/1 &形支架14及一連接於支架14頂端的橫樑16。支牟 I括兩豎置平行的導執142，支架14每一侧面鄰近平台 孔的邛位均設有—滑動槽140。橫樑16的兩端各設一螺紋 60兩碩部為圓弧面的測量頭2〇分別收容於橫工 的兩螺紋孔16〇。 /…、 第=定位部30呈倒置的“l”形，包括—第—水平部 自該第一水平部的—端垂直延伸的一第二水平部，其^ 200923325 水平部的端壁 相對的一側壁 第一水平部開設一上下貫穿的通孔32,第一 上開設一螺孔35，第二水平部于與螺孔35 上凸設一弧形的第一定位塊34。 第一疋位部50呈方形，包括兩相對的側壁，豆 f上開設一卡口 52’另-侧壁上凸設-弧形的第：定位： 二第一定㈣5〇上開設一貫穿該兩相對側壁 口 52相通的螺孔56。 睛結合參照圖2,測量系統7G包括_測量表（本實施 方式中為百分表72)、固^百分表72的表架％固定架 76、一固定於固定架76的固定體乃、一擋塊乃、一彈菩 73、-連接件（本實施方式為一螺釘⑺及一測量塊乃、。 百分表72的-側凸設—以部顶，固定部72()内延伸出 一可彈性伸縮的表桿722。表架74包括一呈“〔”形的主 體，及兩分別自主體⑽的兩支臂末端向上下兩相反方 向豎直延伸的固定腳746;主體上橫向開設—通孔 742’登直開設—與通孔川相通的螺孔7化每—固定腳 746上均開設一螺孔748。固定架％大致呈方形，包括一 與表桿722伸縮方向平行的第-側面760及一鄰接第一側 面760且與表架74相對的第二側面762。固定架76由第 一側面760的中間部位橫向開設一收容槽764，收容槽764 直延伸直至貫穿第二側面762。固定架76在遠離第一側 面處由頂部向底部貫穿開設—t直的通孔765;固定 架76在第一側面760及第二側面762上於收容槽765的上 下兩側部位鄰近該兩侧面交匯處分別設有兩螺孔、 200923325 768,在與第二側面762相對的側面的中部開設一與收容槽 764相通的通孔769。固定體78包括一固定板及自固 疋板780的中$犬起的固定塊782，固定板谓於固定塊 782的兩側分別對應固定架％的螺孔766開設兩螺孔 784固定塊782上設有一橫向貫穿的螺孔786。測量塊79 包括-豎直部790和一由豎直部79〇 一側面的中間位置垂 直延伸的水平部792，豎直部携另—側面的邊緣處凸設 二便於進行透光判斷的凸緣794，且該另一側面中部設有 -螺孔（圖未示)。水平部792的自由端上開設一螺孔观。 擋塊75鄰近-端處開設一螺孔乃5，另一端為自由端。 、請一併參照圖1至圖3,組裝時，將固定架76透過其 通孔765滑動套設於操作架1〇的支架14的其中一導執 142,沿著導執142移動固定架％到所需位置，複數手動 螺絲（圖未示）可將固定架76固定於該導執142的該位置 處。測量塊79的水平部792穿過固定架％的通孔769而 伸入收容槽764中，將彈簧73套設于水平部792，使螺釘 77穿過擋塊75的螺孔755並鎖入測量塊79的水平部792 的螺孔796’從而將擋塊75鎖固於測量塊79的水平部792 末端，擋塊75的自由端自固定架76的第一側面76〇伸出 收容槽764 ;彈簧73的一端彈性抵頂於固定架％的收容 槽764的槽壁上，另一端彈性抵於擋塊75。兩螺釘788分 別對應的穿過固定體78的螺孔784並鎖入固定架的第 —側面760的螺孔766,從而將固定體78固定於固定架％ 的第一側面760 ’且使固定體78的固定塊782背向收容槽 200923325 764 ’與擋塊75的自由端平行並位於其外側。此時，測旦 塊化擔塊75、彈簣73及螺清77組成一測量部。微調二 .絲80穿過固定體78的螺孔786抵頂在擔塊乃的自由端的 -側面上。兩螺釘745分別穿過表架74的固定腳7牝的螺 孔748而旋入固定架76的第二側面762的螺孔服，從而 將表架74固定於固定架76的第二側面犯。—側辟開—' 一狹槽的軸套724套設於百分表72的固定部㈣上，^ 表72的表桿722及固定部72〇穿過表架％的通孔 使軸套724收容於表架74的通孔742内，表桿Μ2與固定 於擋塊75的螺釘77的螺帽彈性相接觸。—螺釘γ穿過 架74的螺孔744抵頂於軸套724的側壁，並擠壓轴 使其上的狹槽收縮而將固定部720緊固於轴套 將百分表72固定於表架74。使第—定位部3G透過其料 32滑動套設於該導執142’一手動螺絲％穿過第一定位邙 3旦〇的螺孔35將第一定位部3〇可卡固於導軌142上位於測 ΐ糸統70上方的任意位置，且使第一定位部％的第一定 t塊34位於支架14的外側。一方形鎖緊螺母58可移動地 = 142的滑動槽140内，第二定位部5〇的卡口 52卡在支04上’—螺釘59穿過第二定位部別的螺孔 56、螺母58的螺孔，且末端抵頂於支架14，從而將第二 定位部50安裝，支架14。此時，第_定位部則第一定 位塊3 4和第一疋位部5 0的第-宁办 共同位於一置直的基準面上弟二位梓塊二的弧形部最外端 兩導軌U2頂部。 將“Μ裝設於支架14的 11 200923325 請繼續參照圖4,當需測量待測元件％外凸變形的一 量時，鬆釋微調螺絲8Q使其與擔塊％脫離接觸， • =73的彈性回復力推動擋㈣及螺釘77並同時帶動測 里塊79向百分表72運動，怂而拖知了、+ 『運動攸而推動百分表72的表桿722 收縮’直至測量塊79的堅亩邱7〇n Bi·人 扪丑直邛79〇貼合於固定架76。此 日-弟-定位部30的第一定位塊34和第二定位部5〇的第 塊Μ的弧形部最外端所在的基準面與豎直部79〇 之間的垂直距離為一定值 焚相疋俚d δ周整百分表72使其讀數歸 々。根據待測几件90的尺寸調整第—定位部3。和第二定 立部則位置。將待測元件9Q豎起置於操作㈣的平台 第亚^外凸那―面的上下兩端分別緊靠第—定位塊％ 敕训γΓ立塊54 ·。根據待測元件90的外凸部的位置，調 二#里70在導執142上的位置益固定，擰緊微調螺絲 」隹動擋塊75向待測元件90靠近，彈箬73受壓變 :因而推動測量塊79向待測元件9〇運動，此過財，； 們的接觸程度，當測量塊7 9 H有工隙而透光來判斷他 ^ ^ ^ . 、 的凸緣794與待測元件9〇剛 72t 士'數’讀出百分表72的讀數’定值d與百分表 、。貝數之差即為該待測元件即向外凸起的變形值。 =^亦可測量待測元件9Q凹陷的—面的變形值 凹陷變形時，將收容於橫標16的螺紋 臥直邱彻測㈣2〇取下，將其安裝於測量塊79的 豆直部790的螺孔内。#經外 離接觸溫” 絲8〇使其與擔塊75脫 ^ 73的彈性回復力推動擔塊75及螺釘77向百 12 200923325 刀表72運動，直至測量塊79的豎直部790貼合於固定架 -螺釘77的螺帽緊抵於百分表72的表桿722。此時， ，第疋位邓30的第一定位塊34、第二定位部5〇的第二定 位塊54的弧形部最外端及豎直部790的測量頭20的頭部 ^同位於直的基準面上。調整百分表72使其讀數歸 待測兀件90登起*其凹陷_面的上下端部分別緊靠 第疋位塊34及第二定位塊54。根據待測元件的凹陷 部的位置’調整測量系統70纟導軌142上的位置並固定， 擰緊微調螺，絲80使其推動擋塊75及與播塊乃連接一起的 測置塊79向待測元件90靠近’直至測量頭20的頭部鱼待 :” 90接觸’它們的接觸程度同樣藉由透光度來判斷， 田=里頭20的頭部與待測元件9〇剛好接觸並無透光時， 刀表72上的δ貝數即為該待測元件凹陷的變形值。 本發明測量裝置的其他實施方式中，亦可於另一導軌 t42一上裝設另一第一定位部30及另一第二定位部50,並於 3〇和第二定位部％之間襄設另—測量系統 :〇,從而方便兩個測量人員分別對兩待測元件9〇進行測 置0 . 綜上所述’本發明確已符合發明專利之要件，表依法 ^出專财請。惟，以上所述者僅為本發明之較佳實施方 發明之範圍並不以上述實施方式為限，舉凡熟悉本 ^技4之人^在爰依本發明之精神所作之等效修飾或變 化，皆應涵蓋於以下之申請專利範圍内。 【圖式簡單說明】 13 200923325 圖1係本發明平面度測量裝置的較佳實施方式的立體 分解圖。 圖2係圖1中測量系統的立體分解圖。 圖3係圖1的立體組裝圖。 ^ 、圖4係本發明平面度測量裝置的較佳實施方式測量一 待測元件時的使用狀態圖。 【主要元件符號說明】 平台 12 支撐臂 142 測量頭 20 弟一定位塊 34 第一疋位部 50 螺孔 56 測量系統 70 固定部 720 彈簧 73 通孔 742 螺孔 748 固定架 76 收容槽 764 螺孔 766 固定板 780 螺孔 786 水平部 792 微調螺絲 80 支架 14 橫樑 16 第一定位部 30 螺孔 35 卡口 52 螺母 58 螺釘 71、77 表桿 722 表架 74 螺孔 744 擋塊 75 第一側面 760 通孔 765 通孔 769 固定塊 782 測量塊 79 凸緣 794 待測元件 90 操作架 10 滑動槽 140 螺紋孔 160 通孔 32 螺釘 36 第二定位塊 54 螺釘 59 百分表 72 軸套 724 主體 740 固定腳 746 螺孔 755 第二側面 762 螺孔 768 固定體 78 螺孔 784 豎直部 790 螺孔 796 14The amount of plane deformation of the element to be tested, so that the measurement result can be obtained conveniently and quickly. [Embodiment] 'D Month, ..., Fig. 1, a preferred embodiment of the flatness measuring device of the present invention includes: an operating frame 10, a first-position, and a second positioning portion 50 8'. The Lieutenant 70 and the fine adjustment component (in this embodiment, the fine adjustment screw, the frame. The ίο includes a platform 12, a Ί/1 & bracket 14 mounted perpendicularly to the platform 12, and a top attached to the bracket 14 The beam 16 includes two vertical parallel guides 142. Each side of the bracket 14 is provided with a sliding slot 140 adjacent to the platform hole. The two ends of the beam 16 are provided with a thread 60 and two bases. The curved measuring heads 2〇 are respectively received in the two threaded holes 16〇 of the crossbar. The second positioning portion 30 has an inverted “l” shape, including the first-level portion from the first horizontal portion. a second horizontal portion extending vertically, the first horizontal portion of the side wall opposite to the end wall of the horizontal portion of the horizontal portion of the horizontal portion of the horizontal portion of the horizontal portion of the horizontal portion of the horizontal portion of the horizontal portion of the horizontal portion of the horizontal portion of the horizontal portion An arc-shaped first positioning block 34 is protruded from the hole 35. The first clamping portion 50 has a square shape and includes two opposite side walls. The bean f has a bayonet opening 52' and the side wall is convex-arc. No.: positioning: a first screw hole 56 through which the two opposite side wall openings 52 communicate with each other. The measuring system 7G includes a _ measuring table (in the present embodiment, a dial gauge 72), a gantry % fixing bracket 76 of the solid dial gauge 72, a fixed body fixed to the fixing bracket 76, a stopper, and a The embossed 73, the connecting piece (the present embodiment is a screw (7) and a measuring block, the square side of the dial 72 is provided with a top portion, and the fixed portion 72 () extends an elastically stretchable table. The rod 722. The watch frame 74 includes a main body of a "[" shape, and two fixed legs 746 extending vertically from opposite ends of the two arms of the main body (10) in opposite directions; the main body is laterally opened - the through hole 742' Straight opening - a screw hole 7 communicating with the through hole Chuan each of the fixing legs 746 is provided with a screw hole 748. The fixing frame % is substantially square, including a first side 760 parallel to the telescopic direction of the crown 722 and an adjacent The first side 760 is opposite to the second side 762 of the front frame 74. The fixing bracket 76 defines a receiving groove 764 laterally from the middle portion of the first side 760. The receiving groove 764 extends straight until the second side 762 extends through the fixing frame 76. Opening from the top to the bottom away from the first side - t straight through hole 765; fixing frame 76 The first side 760 and the second side 762 are respectively provided with two screw holes, 200923325 768, at the upper and lower sides of the receiving groove 765 adjacent to the intersection of the two sides, and the first side of the side opposite to the second side 762 is opened and received. The through hole 769 is connected to the slot 764. The fixing body 78 includes a fixing plate and a fixed block 782 of the self-fixing plate 780. The fixing plate is respectively disposed on the two sides of the fixing block 782 corresponding to the screw hole 766 of the fixing frame. A two-hole 784 fixing block 782 is provided with a laterally extending screw hole 786. The measuring block 79 includes a vertical portion 790 and a horizontal portion 792 extending perpendicularly from an intermediate position of the vertical portion 79, a vertical portion At the edge of the other side, a flange 794 for facilitating the light transmission is protruded, and a screw hole (not shown) is provided at the middle of the other side. A screw hole view is formed on the free end of the horizontal portion 792. The stopper 75 has a screw hole 5 at the proximal end and a free end at the other end. Referring to FIG. 1 to FIG. 3 together, when assembling, the fixing bracket 76 is slidably disposed through one of the guides 142 of the bracket 14 of the operating frame 1 through the through hole 765, and the fixing frame is moved along the guide 142. To the desired position, a plurality of hand screws (not shown) can secure the bracket 76 to the position of the guide 142. The horizontal portion 792 of the measuring block 79 passes through the through hole 769 of the fixing frame and protrudes into the receiving groove 764, and the spring 73 is sleeved on the horizontal portion 792, so that the screw 77 passes through the screw hole 755 of the stopper 75 and is locked into the measurement. The screw hole 796' of the horizontal portion 792 of the block 79 thus locks the stopper 75 to the end of the horizontal portion 792 of the measuring block 79, and the free end of the stopper 75 extends from the first side 76 of the fixing frame 76 to the receiving groove 764; One end of the spring 73 elastically abuts against the groove wall of the receiving groove 764 of the fixing frame, and the other end elastically abuts against the stopper 75. The two screws 788 respectively pass through the screw holes 784 of the fixing body 78 and lock into the screw holes 766 of the first side 760 of the fixing frame, thereby fixing the fixing body 78 to the first side 760 ′ of the fixing frame % and making the fixing body The fixing block 782 of the 78 is facing away from the receiving groove 200923325 764 'parallel to the free end of the stopper 75 and located outside thereof. At this time, the measuring block block 75, the magazine 73, and the screw clear 77 constitute a measuring portion. The fine wire 2 is passed through the screw hole 786 of the fixing body 78 against the side of the free end of the weight. The two screws 745 are respectively threaded through the screw holes 748 of the fixing legs 7 of the watch frame 74 and screwed into the screw holes of the second side 762 of the fixing frame 76, thereby fixing the watch frame 74 to the second side of the fixing frame 76. - a side opening - 'a slotted bushing 724 is sleeved on the fixing portion (four) of the dial indicator 72, and the watch stem 722 and the fixing portion 72 of the table 72 are passed through the through hole of the watch frame to make the sleeve 724 The rod Μ 2 is elastically contacted with the nut of the screw 77 fixed to the stopper 75 in the through hole 742 of the watch frame 74. - the screw γ passes through the screw hole 744 of the bracket 74 against the side wall of the sleeve 724, and presses the shaft to contract the slot thereon to fasten the fixing portion 720 to the sleeve to fix the dial 72 to the watch frame. 74. The first positioning portion 3 is slidably sleeved on the guide rail 142 through the screw hole 35 of the guide 142' through which the manual positioning screw 3G is slidably disposed through the guide 142'. It is located at any position above the measuring system 70, and the first fixed block 34 of the first positioning portion % is located outside the bracket 14. A square lock nut 58 is movably mounted in the sliding groove 140 of the 142, and the bayonet 52 of the second positioning portion 5〇 is caught on the bracket 04. The screw 59 passes through the screw hole 56 of the second positioning portion and the nut 58. The screw hole and the end abut against the bracket 14 to mount the second positioning portion 50 to the bracket 14. At this time, the first positioning block 34 and the first positioning block of the first positioning unit 50 are located on the first outermost end of the curved portion of the second two blocks 2 on a straight reference plane. The top of the rail U2. Please refer to Figure 4 for the Μ 设 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 2009 The elastic restoring force pushes the gear (4) and the screw 77 and simultaneously drives the measuring block 79 to move toward the dial indicator 72, thereby dragging and knowing, + "moving and pushing the crown 722 of the dial 72 to shrink" until the measuring block 79 The culvert of the first block 34 of the positioning portion 30 and the arc of the first block of the second positioning portion 5〇 are attached to the fixed frame 76. The vertical distance between the reference plane at the outermost end of the part and the vertical portion 79〇 is a certain value. The combustion phase 疋俚d δ weeks of the whole percentage table 72 blames the reading. According to the size of the 90 pieces to be tested - Positioning portion 3. The position of the second fixed portion is set. The element to be tested 9Q is placed upright on the upper and lower ends of the platform of the operation (4), and the upper and lower ends of the surface are respectively close to the first positioning block. Block 54 · According to the position of the convex portion of the component to be tested 90, the position of the adjustment 70 in the guide 142 is fixed, and the fine adjustment screw is tightened. 75 is close to the component to be tested 90, and the magazine 73 is pressed: thus pushing the measuring block 79 to move to the component 9 to be tested, and this is too much, and the degree of contact between the measuring blocks and the measuring block is transparent. To judge the flange 794 of the ^ ^ ^ . , and the component to be tested 9 〇 just 72t 'number' read the dialect 72 reading 'set value d and the dial indicator. The difference between the number of shells is the deformation value of the element to be tested, that is, the outward convexity. =^ can also measure the deformation value of the surface of the object to be tested 9Q, and when the deformation value is concave and deformed, the thread received in the horizontal mark 16 is taken down and tested (4) 2, and is attached to the straight portion 790 of the measuring block 79. Inside the screw hole. The outer elastic contact force of the wire 8 is caused to move the load block 75 and the screw 77 to the knives 72, and until the vertical portion 790 of the measuring block 79 is fitted. The nut of the fixing frame-screw 77 abuts against the rod 722 of the dial indicator 72. At this time, the first positioning block 34 of the third position Deng 30, the second positioning block 54 of the second positioning portion 5〇 The outermost end of the curved portion and the head portion of the measuring head 20 of the vertical portion 790 are located on the straight reference plane. The dial gauge 72 is adjusted so that the reading is returned to the workpiece 90 to be lifted * the upper and lower sides of the recessed surface The end portions abut the third clamping block 34 and the second positioning block 54 respectively. The position of the measuring system 70 on the guide rail 142 is adjusted according to the position of the recessed portion of the component to be tested and fixed, and the fine adjustment screw is tightened, and the wire 80 is pushed to move. The block 75 and the measuring block 79 connected with the broadcast block are close to the element to be tested 90 until the head of the measuring head 20 is waiting for: 90 contact 'the degree of contact is also judged by the transmittance, Tian = When the head of the inner head 20 is just in contact with the component to be tested 9 并无 and there is no light transmission, the δ bay number on the knife table 72 is the deformation value of the recessed component to be tested. . In another embodiment of the measuring device of the present invention, another first positioning portion 30 and another second positioning portion 50 may be disposed on the other rail t42, and between the 3〇 and the second positioning portion%. Set another-measurement system: 〇, so that two surveyors can separately measure the two components to be tested. 9 In summary, the invention has indeed met the requirements of the invention patent, and the table is legally required to make special funds. However, the scope of the invention described above is only the scope of the invention of the present invention and is not limited to the above-described embodiments, and those skilled in the art will be equivalently modified or modified in accordance with the spirit of the invention. All should be covered by the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS 13 200923325 Fig. 1 is a perspective exploded view of a preferred embodiment of the flatness measuring device of the present invention. Figure 2 is an exploded perspective view of the measurement system of Figure 1. 3 is a perspective assembled view of FIG. 1. Fig. 4 is a view showing a state of use of a preferred embodiment of the flatness measuring device of the present invention when measuring an element to be tested. [Main component symbol description] Platform 12 Support arm 142 Measuring head 20 Younger positioning block 34 First clamping part 50 Screw hole 56 Measuring system 70 Fixing part 720 Spring 73 Through hole 742 Screw hole 748 Fixing bracket 76 Storage groove 764 Screw hole 766 Fixing plate 780 Screw hole 786 Horizontal part 792 Fine adjustment screw 80 Bracket 14 Beam 16 First positioning part 30 Screw hole 35 Bayonet 52 Nut 58 Screw 71, 77 Rod 722 Shelf 74 Screw hole 744 Stop 75 First side 760 Through hole 765 Through hole 769 Fixing block 782 Measuring block 79 Flange 794 Component to be tested 90 Operating frame 10 Slot groove 140 Threaded hole 160 Through hole 32 Screw 36 Second positioning block 54 Screw 59 Dial indicator 72 Bushing 724 Body 740 Fixing Foot 746 Screw hole 755 Second side 762 Screw hole 768 Fixing body 78 Screw hole 784 Vertical part 790 Screw hole 796 14