200815228 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種汽車零組件及其製造方法，特別 是指一種輕結構型汽車儀表板托架及其製造方法。 【先前技術】 如圖1、2所不，一習知之汽車儀表板托架i，為美國 公告專利號第 5,934,733 號「Extruded Instrument panelBACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile component and a method of manufacturing the same, and more particularly to a light structure type automobile instrument panel bracket and a method of manufacturing the same. [Prior Art] As shown in Figs. 1 and 2, a conventional automobile instrument panel bracket i is US Patent No. 5,934,733 "Extruded Instrument panel".
Structure」。該汽車儀表板托架i是裝設於一車輛2上，用 以支撐儀表板，並包含一筆直的擠型主樑n、二分別固設 於該擠型主樑η之兩相反端的固定板12、二間隔地設置於 4擠型主樑左側上的型定架13、一設置於該擠型主樑U 上並介於該二型定架13間的轉向定位架14，及一設置於該 擠型主樑11右側上的置物架15。 該私型主樑11的截面是呈矩形，並於四周面上分別形 成有四滑槽111。每一型定架13上形成有二可於兩相鄰滑 槽111中滑移的凸垣131。該轉向定位架14與置物架亦 有類似於上述型定架13的凸垣131設計。藉此設計，使得 所述的型疋架13、轉向定位架14，及置物架可於該擠 型主樑11上滑動及吊掛。 然而，由於該擠型主樑11是為利用擠製的方式成型， 其截面幾何的前後均一，對於零配件較複雜之設計，而需 要有該擠型主樑u之截面配合變化時，則此設計是無法滿 足的。因此’造成零配件的設計受到相當大的限制，致使 設計彈性較差，而難以符合設計的需求。 200815228 如圖3所示’另-.習知之汽車儀表板托架3,包含一筆 直均一的主樑31、二分別銲接於該主樑31兩相反端的固定 座32、-銲接在該主樑31左側上的型定架^、一鲜接在 該主樑31上且位於該型定架33中的轉向定位座％、一焊 接在該主樑31右側上的置物架35，及—銲接在該主襟Μ 上並介於該型定架33與置物架35之間的框格架3“ 於製造該汽車儀表板托架3時，是直接取用鋼管作為 八主樑’再以板金沖壓方式製造其他組件。之後，再將 該二固定座32、型定架33、置物架35,及框格架36等組 件依其設計銲接於該主樑31之適當位置上。 μ上述之製造方式，在設計的變化上可以較為多樣化， 付合設計上的需求，是目前製造上的主流。然而，除了在 使用的零件數量較多，會花費較多的時間在銲接作孝上， :且整體的重量也會較重等問題之外，其最大問題在於因 ^亥主樑的截面形狀是平滑均—的，沒有任何的截面變 的梦2提供t述組件銲接定位之用。因此，在輝接位置 ;“工制上疋相當困容易發生銲接位置偏差太多， =後續的組裝蚊無法準確對位，报可能需要拆卸重新 知接’反而造成組裝作業的 製造成本大幅提高。、 “業時間’致使 【發明内容】 柘本&月之目的’即在提供-種輕結構型汽車儀 =才 反托架及其製造方法，可以製造截面具變 提供精確定位之用，㈣，還可以減輕重量並讓組裝方便 200815228 、迅速，有效節省成本。 _ ^於是，本發明之輕結構型汽車儀表板托架，包含一主 樑、二固定座，以及一轉向定位座。該主樑具有-管體部 μ—形成於該管體部之兩相反側且戴面呈非圓形的第—膨 管部，及一介於該二第一膨管部間且截面呈非圓形的第= 膨管部，所述之第-、二料部均是以内高壓成型技術: 形成ϋ固定座是分別套合於該主標之二第一膨管部。 该轉向定位座是穿套於該主樑之第二膨管部上。 ，本發明輕結構型汽車儀表板托架之製造方法，包含一 備衣步驟、一膨管步驟，及一組裝步驟，該備製步驟是備 製一直管、二时座，與—轉向定位座，該轉向定位座上 形成有-截面呈非圓形的貫穿孔，每一固定座上形成有一 截面呈非圓形的嵌合槽。該膨管步驟是以内高壓成型技術 使該直管膨脹形成有二第—膨管部，及一介於該二第—膨 官部間的第二膨管部’每_第_膨管部的截面是與每一固 定座之嵌合槽㈣相對應’而該第二膨管部的截面是盘該 轉向定位座之貫穿孔截面相對應。該組裝步驟是將該主摔 之第二膨管部嵌合固定於該轉向定位座之貫穿孔中，再將 該二較座分別嵌合固定於該主樑之二第—膨管部上。 本發明之功效在於利用肉古阵丄， j用内同壓成型技術於主樑上形成 所述的第―、二膨管部，透過該主樑之截面形狀的改變， 使得該m與該轉向定位座可精確地定位於該主摔之 預設位置，藉此’可以減輕重量並讓組裝更方便與迅速， 有效節省成本。 200815228 【實施方式】 有關本發明之前述及其他技術内$、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細說明中，將可 清楚的呈現。 如圖4、5所示，本發明輕結構型汽車儀表板托架之較 佳實施例，適用於裝設在-車輛4中，作為儀表板之支樓Structure". The automobile instrument panel bracket i is mounted on a vehicle 2 for supporting the instrument panel, and comprises a straight extruded main beam n and two fixing plates respectively fixed on opposite ends of the extruded main beam η 12, two type spacers 13 disposed on the left side of the four extruded main beam, a steering positioning frame 14 disposed on the extruded main beam U and interposed between the two types of fixed frames 13, and one disposed on The rack 15 on the right side of the extruded main beam 11. The private main beam 11 has a rectangular cross section, and four sliding grooves 111 are formed on the peripheral surfaces. Each type of fixed frame 13 is formed with two tenons 131 which are slidable in two adjacent sliding grooves 111. The steering yoke 14 and the shelf also have a tenon 131 design similar to the type of retainer 13 described above. With this design, the truss 13, the steering locator 14, and the rack can be slid and hung on the extruded main beam 11. However, since the extruded main beam 11 is formed by extrusion, its cross-section geometry is uniform before and after, and for a complicated design of the spare parts, when the cross-sectional matching of the extruded main beam u is required, then Design is not enough. Therefore, the design of the parts is subject to considerable restrictions, resulting in poor design flexibility and difficulty in meeting the design requirements. 200815228 As shown in FIG. 3, the conventional vehicle dashboard bracket 3 includes a straight uniform main beam 31, two fixed seats 32 welded to opposite ends of the main beam 31, and welded to the main beam 31. a type fixing frame on the left side, a steering positioning seat 100 which is attached to the main beam 31 and located in the type fixing frame 33, a rack 35 welded on the right side of the main beam 31, and - welded thereto The frame 3 on the main raft and between the type of the fixed frame 33 and the rack 35 "is directly taken from the steel pipe as the eight main beam when manufacturing the automobile instrument panel bracket 3" and then stamped by sheet metal After the other components are manufactured, the components such as the two fixing bases 32, the retainer 33, the rack 35, and the frame frame 36 are welded to the appropriate positions of the main beam 31 according to the design. The design changes can be more diversified, and the design requirements are the mainstream of current manufacturing. However, in addition to the large number of parts used, it will take more time to weld on the filial piety: In addition to the heavier weight, the biggest problem is the cut of the main beam The shape of the surface is smooth and uniform, and there is no cross-section change. The dream 2 provides the positioning of the assembly of the t-part. Therefore, in the position of the splicing; "the workmanship is quite difficult and the welding position deviation is too easy, = follow-up The assembled mosquitoes cannot be accurately aligned, and the report may need to be disassembled and re-informed, which in turn causes a significant increase in the manufacturing cost of the assembly operation. "Industrial time" causes [invention content] 柘本 & month of the purpose of providing a kind of light structure type car instrument = only anti-bracket and its manufacturing method, can make the cross-section change to provide precise positioning, (4) The utility model can also reduce the weight and make the assembly convenient for 200815228, and quickly and effectively save the cost. _ ^ Thus, the light structure type automobile instrument panel bracket of the invention comprises a main beam, two fixing seats, and a steering positioning seat. The beam has a tube body portion μ-shaped portion formed on opposite sides of the tube body portion and having a non-circular surface, and a non-circular cross section between the two first tube portions The first swelled pipe part, the first and second material parts are all formed by the internal high pressure forming technology: the forming ϋ fixing seat is respectively fitted to the first expanded pipe part of the main standard. The steering positioning seat is worn over The second expansion tube portion of the main beam. The manufacturing method of the light structure type automobile instrument panel bracket of the present invention comprises a preparation step, a expansion tube step, and an assembly step, wherein the preparation step is prepared Tube, two-time seat, and - steering positioning seat, the steering position A through hole having a non-circular cross section is formed thereon, and each fixing seat is formed with a fitting groove having a non-circular cross section. The expansion pipe step is to expand the straight pipe to form a second expansion by an internal high pressure forming technique. a pipe portion, and a second expanded pipe portion between the two first expansion portions, a section of each of the _ _ swelled pipe portions corresponding to a fitting groove (four) of each fixing seat, and the second swelled pipe The cross section of the portion corresponds to the cross section of the through hole of the steering positioning seat. The assembling step is to fit and fix the second expanded pipe portion of the main drop to the through hole of the steering positioning seat, and then separate the two seats The fitting is fixed on the second expansion tube portion of the main beam. The effect of the invention is to form the first and second expansion tube portions on the main beam by using the same pressure forming technology. Through the change of the cross-sectional shape of the main beam, the m and the steering positioning seat can be accurately positioned at the preset position of the main drop, thereby 'reducing the weight and making the assembly more convenient and rapid, and effectively saving cost. 200815228 [Embodiment] The foregoing and other technologies related to the present invention are The features and functions of the present invention will be clearly described in the following detailed description of a preferred embodiment of the reference drawings. As shown in Figures 4 and 5, the preferred implementation of the light structure type automobile instrument panel bracket of the present invention is shown. For example, it is suitable for installation in the vehicle 4 as a branch of the instrument panel.
。該輕結構型汽車儀表板托架包含—主樑5、二固定座6, 以及一轉向定位座7。 4主仏5具有-管體部51、二形成於該管體部之兩 相反側且戴面呈非圓形的第一膨管部52，及一介於該二第 -膨管52部間且截面呈非圓形的第二膨管部53。所述之第 、一膨官部52、53的截面尺寸均大於該管體部51的截 面尺寸。 —在該較佳實施例中，該主樑5之管體部51的截面是呈 ^狀/ —第—膨官部52與該第二膨管部53的截面均 壬八角&狀，§然，也可以是其他非圓形的形狀，主要目 的在於可敗卡忒一固定座6與轉向定位座7,使其不轉動。 該主樑5是以銘合金材料一體成型製成，也可以使用鎮合 金、鈦合金，或是鋼材所製成。 口疋座6疋分別套合於該主樑$之二第一膨管 上每目疋座6具有一座體61，及一形成於該座體 上且截面與每一第-膨管部52之截面相對應的嵌合槽62 找較佳實施例中，每—嵌合槽62的截面是與前述第一 以52的截面相對應，是呈六角管狀，藉此，可密合地 200815228 套於4主樑5上。每一固定座6是以鑄造方式一體成型， 其材質是鋁合金，當然，也可以是以鎂合金，或是鈦合金 等輕金屬為製作的材質。. The light structure type automobile instrument panel bracket comprises a main beam 5, two fixing seats 6, and a steering positioning seat 7. 4 main 仏 5 has a tube body portion 51, two first expansion tube portions 52 formed on opposite sides of the tube body portion and having a non-circular wearing surface, and a portion interposed between the two first-expansion tubes 52 The second expanded tube portion 53 having a non-circular cross section. The cross-sectional dimensions of the first and second expansion portions 52, 53 are both larger than the cross-sectional dimensions of the tubular portion 51. - in the preferred embodiment, the cross-section of the tubular body portion 51 of the main beam 5 is in the shape of a ^ - the first expanded portion 52 and the second expanded portion 53 are uniformly octagonal & However, other non-circular shapes are also possible, and the main purpose is to defeat the fixing seat 6 and the steering positioning seat 7 so as not to rotate. The main beam 5 is formed by integrally molding the alloy material, or it can be made of alloy, titanium or steel. The mouthpiece 6 is respectively sleeved on the first sling of the main beam, and each of the slings 6 has a body 61, and a body formed on the body and having a cross section and each of the first swelled portions 52 The fitting groove 62 corresponding to the cross section is a preferred embodiment. Each of the fitting grooves 62 has a cross section corresponding to the cross section of the first portion 52, and is hexagonal in shape, thereby being closely attached to the 200815228 sleeve. 4 main beam 5 on. Each of the fixing bases 6 is integrally formed by casting, and the material thereof is an aluminum alloy. Of course, it may be made of a magnesium alloy or a light metal such as a titanium alloy.
忒轉向定位座7主要是用以定位方向盤，是穿套於嗲 主樑5之第二膨管部53上。該轉向定位座7具有一本體μ ，及至少一形成於該本體71上且截面與該主樑5之第二膨 Β °卩53之截面相對應的貫穿孔72。在該較佳實施例中，是 在。亥本體71上形成有二相間隔設置之貫穿孔72，該轉向定 位座7是以鑄造方式一體成型。其所使用的材質是鋁合金 仁也可以疋鎂合金，或是鈦合金等輕金屬材質。 應說明的是，關於該二固定座6與轉向定位座7的外 觀形狀，是依設計者的需求而會有所改變，不應 例中所揭露為限。 、β 口如圖6所#，並配合目5，本發明輕結構型汽車儀表 :架之製造方法的較佳實施例，包含一備製㈣Μ、一 管步驟82、_切斷步驟83，及一組裝步驟84。 該備製步驟81是備製一直管5，、二固定座6，盘一 向7旬。每—时座6上形成有-截面呈非圓形的t 槽，該轉向定位座7上形成有二相間p H ^ σ % π 办 々日间隔且截面呈非圓: 、貝:2°該二固定座6與該轉向定位座7均是以鑄 方式-體成型。由於以鑄造技術成形所述的固定座6盘 向ϊΓί7,域屬技觸域巾具有1者依先前私 所此輕易完成，在此不予詳細說明。The yoke steering seat 7 is mainly used for positioning the steering wheel and is sleeved on the second squiggly portion 53 of the 嗲 main beam 5. The steering positioning seat 7 has a body μ and at least one through hole 72 formed in the body 71 and having a section corresponding to a section of the second expansion port 53 of the main beam 5. In the preferred embodiment, it is. The sea body 71 is formed with two through-holes 72 which are spaced apart from each other, and the steering positioning seat 7 is integrally formed by casting. The material used is aluminum alloy, nylon or magnesium alloy, or light metal such as titanium alloy. It should be noted that the appearance of the two fixing bases 6 and the steering positioning seat 7 may be changed according to the needs of the designer, and should not be limited as disclosed in the examples. , the β port is as shown in FIG. 6 and in conjunction with the item 5, the preferred embodiment of the manufacturing method of the light structure type automobile instrument: the frame of the present invention comprises a preparation (four), a step 82, a cutting step 83, and An assembly step 84. The preparation step 81 is to prepare the pipe 5 and the two fixing bases 6, and the disk is always in the same direction. A t-groove having a non-circular cross section is formed on each of the time bases 6, and the two-phase p H ^ σ % π is formed on the steering positioning seat 7 and the cross section is non-circular: and the shell is 2°. Both the fixing base 6 and the steering positioning seat 7 are formed by casting. Since the fixing base 6 is formed by the casting technique to the ϊΓί7, the one of the domain genre touch-field towels is easily completed according to the prior private, and will not be described in detail herein.
如圖7、8所示，並配合圖6,該膨管步驟82是利用J 9 200815228 ▽，.As shown in Figures 7 and 8, and in conjunction with Figure 6, the bulging step 82 utilizes J 9 200815228 ▽.
高壓成型技術’例如液壓成型製程（Hydro-forming Process) ，是於一内高壓成型模具9中進行成型。 該内高壓成型模具9具有可上下蓋合的一上模91與一 下模92。該上、下模91、92可界定出二第一膨脹室96、 一介於該二第一膨脹室96之間的第二膨脹室97，及一連通 所述第一、二膨脹室96、97且截面小於第一、二膨脹室96 、97的置管空間98。 執行液壓成型製程時 管空間98，並予以合模。在該上、下模91、92與直管5，之 間可舖置潤滑介質’如塑膠膜’減少摩擦力，幫助成型。 接著，在該直管5,的一端口塞置一密封塊93，而另一 端口則塞置一可供液體流通的注液塊94。該密封塊93與注 液塊94的周面上環設有複數密封環95，使得該直管$，與該 密封塊93、注液塊94能形成密封效果。 之後，令液體（如水）自該注液塊94注入該直管5，内。 當液體充滿於該直管5,時，其壓力會逐漸昇高，而使得該 直管5,相應於該二第一膨脹室96與該第二膨脹室等三 處產生徑向膨脹，藉此形成該二第—膨管部52 *二: 管部53。在該較佳實施例中，戶斤述的第一、二膨管部^ 5二的截面形狀是與每—固定座6之喪合槽62截面與該轉向 定位座7之二貫穿孔72截面相對應。 83是將該直管 ’即可成為該主 99將適當長度 如圖9、1〇,並配合目6，該切斷步驟 5’上的二第一膨管部52各切斷一局部長度 樑5。在該較佳實施例中，*以_切除工^ 10 200815228 的第一膨官部52切除。然而，對於其他類型的設計上忒例 如4直管5之需切除的部分是可以與該二固定座6相嵌合 谷置枯，則該切斷步驟83為非必要之實施步驟，可予以省 略。High pressure forming technology, such as a hydro-forming process, is formed in an internal high pressure forming die 9. The inner high pressure molding die 9 has an upper die 91 and a lower die 92 which are vertically closable. The upper and lower dies 91, 92 can define two first expansion chambers 96, a second expansion chamber 97 interposed between the two first expansion chambers 96, and a first and second expansion chambers 96, 97. The cross-section is smaller than the duct space 98 of the first and second expansion chambers 96, 97. The tube space 98 is executed during the hydroforming process and is clamped. A lubricating medium such as a plastic film can be placed between the upper and lower molds 91, 92 and the straight tube 5 to reduce friction and aid in molding. Next, a sealing block 93 is plugged in one port of the straight pipe 5, and a liquid injecting block 94 through which the liquid flows is plugged in the other port. The seal block 93 and the peripheral surface of the liquid injection block 94 are provided with a plurality of seal rings 95 so that the straight pipe $ can form a sealing effect with the seal block 93 and the liquid injection block 94. Thereafter, a liquid such as water is injected into the straight tube 5 from the liquid injection block 94. When the liquid is filled in the straight pipe 5, the pressure thereof is gradually increased, so that the straight pipe 5 is radially expanded corresponding to the two first expansion chambers 96 and the second expansion chamber, thereby The two first expansion tube portions 52*2 are formed: the tube portion 53. In the preferred embodiment, the cross-sectional shape of the first and second expanded tubular portions of the household is the cross-section of the cross-section of the grooving groove 62 of each of the fixing seats 6 and the two through-holes 72 of the steering positioning seat 7. Corresponding. 83 is the straight pipe 'that can be the main 99 will be the appropriate length as shown in Figure 9, 1 〇, and match the purpose 6, the two first expansion pipe 52 on the cutting step 5' each cut a partial length beam 5. In the preferred embodiment, * is cut by the first expansion portion 52 of the _cutter ^ 10 200815228. However, for other types of design, for example, the portion of the straight tube 5 to be cut can be fitted to the two mounts, the cutting step 83 is an unnecessary implementation step and can be omitted.
回到圖5、6，該組裝步驟84是將該主樑5穿過該轉向 疋位座7之二貫穿孔72，並使該第二膨管部53嵌合固定於 名一貝牙孔72中。接著，再令該主樑5之二第一膨管部52 分別與該二固定座6之嵌合槽62嵌合固定。在該較佳實施 财，該轉向定位座7與該二固定座6 Μ膠合的方式固 疋於该主# 5上’當然也可以在嵌套之後，再行銲接。另 外，於该主樑5、固定座6、轉向定位座7之 以螺絲鎖固的方式固定域可行的。 置處 利用内回壓成型技術’於該主樑5之預固定位置形 :1圓形的Ir、二膨管冑52、53,變化該主樑5的截面形 —亚配合每一固定座6之嵌合槽62與該轉向定位座7之 2^2的設計，能使时座6、轉向定位座7可精確地 疋位於该主樑5之預設位置 豸免後續之組裝作業發生 Γ。㈣ ’使組裝作業較為迅速且方便，以降低成 1於其他之零組件，如 - 36(均見於R γ 35與框格架 見於圖3)，仍可透過上述的方式， 組裝的方便性。 于丰確的疋位與 田於該主樑5是 ，太fee 衣狂的万式一體成： 本身即可減少材料之使用量，及減少二 於該主樑5 、， 一疋位令件 。亚且，再配合以輕金屬材質製成的固定座 11 200815228 向疋位座7 ’例如銘、！美、鈦，.藉此有效降低該輕結構 型汽車儀表板托架的重量。 ^歸納上述，本發明之輕結構型汽車儀表板托架及其製 =方法，是利用内高壓成型技術於該主樑5上形成所需的 第一二二膨管部52、53，透過該主樑5之截面形狀的改變 使仔該_固定座6與該轉向定位座7可精確地定位於該 • 主樑5之預設位置上，讓組裝更方便與迅速，有效節省成 φ 本同％因為δ亥主樑5為一體成型，可減少材料之用量 ' ，並配合輕金屬的使用，可有效地減輕整體重量與零件數 ’故確實能達到本發明之目的。 ^惟以上所述者，僅為本發明之較佳實施例而已，當不 =以此限定本發明實施之範圍，即大凡依本發明中請專利 範圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 • 圖1是一立體圖，說明—習知之汽車儀表板托架，為 美國公告專利號第 5,934,733 號「Extnided Instni_t ^ Structure」； 圖2是圖1之剖面圖； 圖3是一立體圖，說明另一習知之汽車儀表板架 態樣； 圖4是-立體圖，說明本發明輕結構型汽車儀表板托 架之較佳實施例，是裝設於一車輛内； 圖5是該輕結構型汽車儀表板托架的立體分解圖’· 12 圖 6是一户。 架之製造方法，說明本發明輕結構型汽車儀表板托' 奴佳實施例； 圖 7是一製γ 一 Λ、w 社不意圖，說明是以一古其里认 ^ ^ ^ 成型模具中，,、，^ 直g置於一内尚屋 乂進行膨管步驟； 體注入該直管以形成 圖8是一盤如一 * 衣私不意圖，說明將液 高壓’而使該直管膨脹變形； 圖9是一立體圖，說明該直管膨脹變形之後 ； 以及 一切除工具，將該 圖10是一製程示意圖， 直管之部分第一膨脹部予以切除 13 200815228 :【主要元件符號說明】 4…… …車輛 82 » * - ，膨管步驟 5 * * ^ 4 ^ …主樑 83…… *切斷步驟 5 » » » . …直管 84…… 。組裝步驟 51 * # ? …管體部 ：5 * 〇 ^ ® 5内南壓成型模具 52… …第一膨管部 91…… +上模 53… …第二膨管部 92 ® ^ 下模 S & i> …固定座 93 * * s 9密封塊 61 — …座體 94 — 注液塊 6 2 - « * …散合槽 95…… 密封環 7…… …轉向定位座 9 6 »… 第一膨脹室 ， …本體 97…… ，第二膨脹室 7 2 β ^ " …貫穿孔 98…… 置管空間 81… …備製步驟 99… s切除工具Referring back to FIGS. 5 and 6, the assembly step 84 is such that the main beam 5 passes through the two through holes 72 of the steering clamp seat 7, and the second expansion tube portion 53 is fitted and fixed to the first tooth hole 72. in. Then, the first expanded tube portions 52 of the main beams 5 are respectively fitted and fixed to the fitting grooves 62 of the two fixing bases 6. In the preferred embodiment, the steering positioning seat 7 and the two fixing bases 6 are glued to the main #5. Of course, after the nesting, the welding can be performed. In addition, it is feasible to fix the main beam 5, the fixing base 6, and the steering positioning seat 7 in a screw-locking manner. The position is determined by the internal back pressure forming technology in the pre-fixed position of the main beam 5: 1 circular Ir, two expanded tubes 52, 53, changing the sectional shape of the main beam 5 - sub-mating each fixing seat 6 The design of the fitting groove 62 and the steering positioning seat 7 can enable the timing seat 6 and the steering positioning seat 7 to be accurately positioned at the preset position of the main beam 5 to avoid subsequent assembly work. (d) ‘The assembly work is quick and convenient, so as to reduce the number of other components, such as - 36 (both seen in R γ 35 and sash frame as shown in Figure 3), the convenience of assembly can still be achieved through the above method. In the rich position and the field in the main beam 5, too fee mad madness: itself can reduce the amount of material used, and reduce the number of the main beam 5, a positional order. Yahe, together with the fixed seat made of light metal material 11 200815228 To the seat 7 ’ For example, Ming! US, titanium, to effectively reduce the weight of the light structure car dashboard bracket. In summary, the light structure type automobile instrument panel bracket and the method for manufacturing the same according to the present invention are formed on the main beam 5 by using an internal high pressure forming technique to form a required first two or two expanded tube portions 52 and 53 through the The change of the sectional shape of the main beam 5 enables the yoke holder 6 and the steering positioning seat 7 to be accurately positioned at the preset position of the main beam 5, which makes assembly more convenient and rapid, and effectively saves φ. % Because the δHai main beam 5 is integrally formed, the amount of material can be reduced, and the use of light metal can effectively reduce the overall weight and the number of parts. Therefore, the object of the present invention can be achieved. The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the practice of the present invention, that is, the simple equivalent change of the scope of the patent and the description of the invention in the present invention. And modifications are still within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a conventional automobile instrument panel bracket, which is U.S. Patent No. 5,934,733, "Extnided Instni_t ^ Structure"; Fig. 2 is a sectional view of Fig. 1; A perspective view of another conventional automobile instrument panel frame; FIG. 4 is a perspective view showing a preferred embodiment of the light structure type automobile instrument panel bracket of the present invention, which is installed in a vehicle; FIG. An exploded view of a light-structured car dashboard bracket'· Figure 6 is a household. The manufacturing method of the frame illustrates the embodiment of the light-structured automobile instrument panel of the present invention, and the figure 7 is a system of γ Λ Λ, w 社 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不 不, , , ^ directly g placed in a room to carry out the expansion tube step; body injection of the straight tube to form Figure 8 is a disk such as a * private, not to explain the high pressure of the liquid to make the straight tube expansion deformation; Figure 9 is a perspective view showing the straight tube after the expansion deformation; and a cutting tool, the figure 10 is a process schematic diagram, part of the first expansion portion of the straight tube is cut 13 200815228: [main symbol description] 4... ...vehicle 82 » * - , bulging step 5 * * ^ 4 ^ ... main beam 83... * cut off step 5 » » » . ... straight tube 84... . Assembly step 51 * # ? ...tube body: 5 * 〇^ ® 5 inner south pressure forming mold 52... first expanded tube portion 91... upper mold 53... second expanded tube portion 92 ^ lower mold S &i> ...fixing seat 93 * * s 9 sealing block 61 - ... seat body 94 - liquid filling block 6 2 - « * ... loose groove 95... sealing ring 7 ... ... steering positioning seat 9 6 »... An expansion chamber, ... body 97..., second expansion chamber 7 2 β ^ " ...through hole 98... tube space 81... preparation step 99...s cutting tool
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