200841955 九、發明說明： 【發明所屬之技術領域】 本發明係關於一種心轴模，尤指一種應用於該彎管機 ’對管件彎曲部份提供内部辅助支撐之心軸模結構設計。 【先前技術】200841955 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a mandrel die, and more particularly to a mandrel die structure design for applying the internal auxiliary support to the curved portion of the pipe bender. [Prior Art]
彎管機係一種應用於管件彎曲加工的專用機具，為使 官件可以彎曲成預定的圓弧形，該彎管機係利用其機台一 端1管件移送裝置夾持著管件，朝向機台另端機頭上=設 之彎管裝置處推送，使管件在彎管裝置中之導模輪與曲手 機構相對配合之旋轉作用，對管件施以側向的推壓或拉伸 作用，讓管件依循著該導模輪中漸進彎曲成形。 又，為了減少管件於彎曲加工過程中發生内凹之現象 ，目前已知彎管機之管件移送裝置處通常會加裝—受控於 心模控制器之可撓性心轴模，藉以伸入管件預定彎曲部位 處提供適當的内部支撐’進而減少管件彎曲後發生内凹之 現象。 如第六圖所示，将揭丁— n 、， ，、揭不目則一般習知之彎管機心軸模 設計，由圖中可以見及，該心 罕由接係包括一心軸接頭（6 0)以及數個萬向接頭由拉△人 、 (u)串接組合於該心軸接頭（ Θ 0 ) —知》，该心軸接頭（β n 伐頌C60)一端形成球窩 )，該些萬向接頭（7 〇 ^ ^ b 1 U )係由—球狀樞接件（7 i )以 及一支撐環套（7 2 )所细# 1 ； 、、’成’該球狀樞接件（7 1 ) — 端具有球狀樞接部（7 1 Ί、 1 ) 2)之組接部（713)二：另端為具有球寓槽（71 '"支揮環套（7 2 )係固接於 4 200841955 球狀柩接件（7 ])令Λ ± 接頭（7 0 )係以复=部（7 1 3 )外側，該些萬向 萬向接頭（7〇)之社* 丄1)樞没另一 另以該些萬向接頭（7 中而作串連組合，The pipe bending machine is a special machine for bending the pipe fittings. In order to bend the official part into a predetermined arc shape, the pipe bending machine clamps the pipe fittings with one pipe piece conveying device at one end of the machine table, and faces the machine table. Pushing at the end of the head = the bending device at the end of the pipe, so that the guide wheel of the pipe fitting in the pipe bending device and the crank mechanism cooperate with each other, and exert a lateral pushing or stretching action on the pipe fitting, so that the pipe fittings follow The progressive bending of the guide wheel is formed. Moreover, in order to reduce the phenomenon of the concave of the pipe fitting during the bending process, it is known that the pipe transfer device of the pipe bending machine is usually installed with a flexible mandrel die controlled by the core die controller. The pipe provides a suitable internal support at the predetermined bending point to reduce the occurrence of a concave after the pipe is bent. As shown in the sixth figure, the design of the mandrel die of the pipe bender, which is generally known, can be seen from the figure. The heart is connected by a mandrel joint (6). 0) and a plurality of universal joints are combined by the puller and (u) in the mandrel joint ((0)- knowing, the mandrel joint (β n cut C60) forms a ball socket at one end), The universal joint (7 〇 ^ ^ b 1 U ) is composed of a spherical pivoting member (7 i ) and a supporting ring sleeve (7 2 ); #1, '成' the spherical pivoting member (7 1 ) — The end has a spherical pivoting part (7 1 Ί, 1 ) 2) The joint part (713) 2: The other end has a ball groove (71 '" fulcrum ring sleeve (7 2 ) Fastened to 4 200841955 Spherical splicing (7)) Λ ± joint (7 0) is the outer part of the complex part (7 1 3), the universal joint (7 〇) of the community * 丄1) The pivot does not have another universal joint (7 in series),
η樞設於該心轴接頭（）R、=—端之球狀樞接部（u — 頭（6〇) 一端的球窩栌〔RU 猎此使其具有可撓曲性，並能伸入“。’ 彎曲部份提供辅助支撐。 （50)内，對其 惟前揭萬向接頭式心轴模設計，雖可 彎曲加工時提供iA 午（5 〇 ) 績供其弓曲部份之内部支撐 轴模中之數萬向接頭ί7Λ、士…、而該心 ，任一相部S 6技、 ）在该官件（5 0 )彎曲過程 ㈣萬向接頭（7 0 )之支撐環套（7 圍彎曲弧徑部位係呈較大 s ;卜 .ς 〇 . ^ 4距，以致該心軸模無法對管 ◎ ;曲部位足夠的支撐’易使管件（5 0 )外圍 考曲弧徑部位未㈣切的部位發生内 ^ 件（50)-曲的品質不良。 冢使侍， 此外，該萬向接頭式心軸模中每一節萬向接頭的長度 扁長旋擺的幅度偏大’造成該心軸模之最小可彎曲半： 偏大’不適m管機進行管件作較小曲率半徑之彎曲： 工 〇 【發明内容】 “本發明之主I目的在於提供一種彎管機之心轴模，希 藉此叹s十’克服先前既有心軸模無法於管件彎曲時提供足 夠的内部支撐，易於管件彎曲部位產生凹陷現象之缺點、。 為達成前揭目的，本發明所設計之彎管機心轴模係包 200841955 括： 一心軸接頭； 數球窩關節，該些球窩關節外周面形成半圓球形樞接 部，一端形成内凹之半圓球凹穴形球窩槽，該些球窩關節 各设有一貫孔連通第二球窩槽，該些球窩關節各以第一球 狀樞接部可轉動地樞設於另一球窩關節之第二球窝槽串接 組合，並設於該心軸接頭一端；以及η is pivotally placed at the ball-shaped pivoting portion of the mandrel joint () R, = - end (u - head (6 〇) end of the ball and socket RU [RU hunting to make it flexible, and can penetrate "." The curved part provides auxiliary support. In (50), the only universal joint type mandrel die design is provided. Although it can be bent, iA noon (5 〇) is provided for the inside of the bow part. Supporting the number of universal joints in the shaft mold ί7Λ, 士..., and the heart, any phase S 6 technique, ) in the bending process of the official member (50) (4) the support ring sleeve of the universal joint (70) 7 The curved arc diameter is a large s; Bu.ς 〇. ^ 4 distance, so that the mandrel mold can not support the tube ◎; the curved part is sufficient to support the tube (50) The (4)-cut part has a bad quality of the inner part (50)-curve. In addition, the length of the long flat swing of each joint of the universal joint type mandrel mold is too large. The minimum bendable half of the mandrel mold: too large 'not suitable for the pipe machine to bend the pipe with a small radius of curvature: work 〇 [Abstract] "The main I of the present invention It is to provide a mandrel mold of a pipe bending machine, and to overcome the shortcomings of the previous mandrel die which can not provide sufficient internal support when the pipe is bent, which is easy to cause a concave phenomenon in the bent portion of the pipe. OBJECTIVE: The mandrel die set 200841955 designed by the present invention comprises: a mandrel joint; a plurality of ball and socket joints, wherein the outer peripheral surface of the ball and socket joint forms a semicircular spherical pivoting portion, and one end forms a concave semicircular ball pocket. a ball socket, each of the ball and socket joints is provided with a constant hole communicating with the second ball socket, and the ball joints are rotatably pivoted to the second ball joint by the first spherical joint Ball sockets are connected in series and disposed at one end of the mandrel joint;
一可撓性連接件，穿過於該些球窩關節之中孔，並以 一、連接該心轴接頭。 本發明藉由心軸模之設計，相較於先前既有心轴模， 本發明之特點在於：本發明係—種彎管機之心 '軸模係使用 =個球窩接頭可轉動地串接組合，並配合-可撓性連接穿 。又其中’及連接於心軸接頭—端，該些球窩關節更於其夕卜 ::形成半圓球形樞接部，内部設有一内凹之半圓球形球 ::，使該些球寫關節各以其半圓球狀樞接部可轉動地樞 球窩關節之球窩槽作串接組合，>此，當本發明 其：：：心軸模伸入管件中’配合彎管機之彎管裝置於該 Α之内邻進仃彎曲加工時，該心軸模可利用該些球窩關節 :之二::圍彎曲弧徑部位均呈較小的間隙及高度差等特 件内部提供密實之辅助支撐，使管件之彎曲部位 有較佳之形狀，不致有管件内凹之情形。 部直發明所設計的球寫關節係呈半圓球形，其内 使得球寫關1窝槽，且該些球窩關節組合係呈層層套合， 寓關郎間可作小幅度的旋擺1而讓整個心轴模之 6 200841955 最小彎曲半徑小於先前既有萬向接頭式心軸模之最小彎曲 半徑，是故，當其應用於管件彎曲加工作業時，即可適用 =彎管機進行管件作較小曲率半徑之彎曲加卫，使該心轴 模可以擴大其適用範圍。 ,此外，本發明所設計之球窩關節構造，僅於其外周面 形成半圓球樞接部’以及内部形成半圓球狀球窩槽等設計 ’相較於先前既有心軸模中由球狀極接件以及支撑套件組 成之萬向接頭，本發明更具有構造簡單化，及降低成本等 功效。 【實施方式】 本發明彎管機之心軸模之組成，主要係包括一心軸接 頭、數個球窩接頭可轉動地串接組合於該心軸接頭一側， 以及一可撓性連接件穿設於該些球窩接頭組合中，並以一 端連接該心軸接頭，該心軸模尚可進一步包括一關接定位 件設於該些球窩接頭組合之另端，組接該可撓性連接件之 另端。以下進—步分就第—、二圖及第三圖所示之兩種具 體可行之心軸模較佳實施例來說明本發明心軸模之具體構 造，其中： 如第一、二圖所示之第一較佳實施例，由圖中可以見 及X軸模（1 )係包括一心軸接頭（1 〇 )、數球窩關 即（2 0 )、一關節定位件（3 〇 )以及一可撓性連接件 (40)，其中： 该心軸接頭（1 0 ) -端具有-連接部（1 1 )，用 以連接彎管機之心模控制器，另端形成半圓球形球窩槽（ 7 200841955 12)，該心軸接頭（1〇)中貫設有_中孔（i3)連 通該半圓球形球窩槽（1 2 )，該中孔（]_ 3 )鄰接半圓 球形球窩槽（1 2)之區段為螺孔狀之組接段（1 3工） ’該中孔（1 3 )#於連接部（1 1 )之區段也可為螺孔 狀之固接段（132)。 該些球窩關節（2 0 "既呈碗狀體，其外周面形成半a flexible connector passing through the holes in the ball and socket joints and connecting the mandrel joints. The invention adopts the design of the mandrel module, and the invention is characterized in that: the invention is a type of bending machine, the heart of the bending machine is rotatably connected in series using a ball joint. Combination, and fit - flexible connection. In addition, 'and connected to the mandrel joint-end, the ball and socket joints are more:: forming a semi-spherical spherical pivoting portion, and internally having a concave semi-spherical spherical ball::, the ball is written to each joint The ball and socket groove of the pivotal ball joint of the pivotal joint of the semicircular spherical joint portion is connected in series, and this is: when the present invention::: the mandrel mold is inserted into the pipe member, the pipe bender is matched with the pipe bender When the device is bent and processed in the vicinity of the crucible, the mandrel mold can utilize the ball and socket joints: the second:: the curved portion of the curved portion has a small gap and a height difference, and the like is provided inside the special part. The auxiliary support makes the curved portion of the pipe member have a better shape without the concave portion of the pipe member. The ball-writing joint system designed by the Ministry of Direct Inventive is semi-spherical, which makes the ball write off 1 socket, and the ball-and-socket joints are layered and nested. And let the whole mandrel model 6 200841955 minimum bending radius is smaller than the minimum bending radius of the previous universal joint type mandrel module, so when it is applied to the pipe bending processing, it can be applied = pipe bending machine for pipe fittings Curving with a smaller radius of curvature allows the mandrel die to expand its range of application. In addition, the ball and socket joint structure designed by the present invention only forms a semicircular ball pivoting portion on the outer peripheral surface thereof and a design such as a semicircular spherical ball groove formed therein. Compared with the previously existing mandrel mold, the spherical pole is formed. The universal joint composed of the connector and the support kit has the advantages of simple structure, reduced cost and the like. [Embodiment] The composition of the mandrel mold of the pipe bending machine of the present invention mainly comprises a mandrel joint, a plurality of ball joints rotatably coupled in series on one side of the mandrel joint, and a flexible connecting member. Provided in the ball joint assembly, and connected to the mandrel joint at one end, the mandrel mold may further include a closing positioning member disposed at the other end of the ball joint assembly, and the flexible portion is assembled The other end of the connector. The following is a detailed description of the two specific embodiments of the mandrel mold shown in the first, second and third figures to illustrate the specific configuration of the mandrel module of the present invention, wherein: In the first preferred embodiment, it can be seen that the X-axis mold (1) includes a mandrel joint (1 〇), a number of ball joints (2 0 ), a joint positioning member (3 〇), and a flexible connecting member (40), wherein: the mandrel joint (10)-end has a connecting portion (1 1 ) for connecting the core mold controller of the bender, and the other end forms a semi-spherical ball socket a slot (7 200841955 12), wherein the mandrel joint (1〇) is provided with a middle hole (i3) communicating with the semicircular spherical ball groove (1 2 ), the middle hole (]_ 3 ) adjoining the semicircular spherical ball groove The section of (1 2) is a screw-shaped assembly section (1 3 working). The section of the middle hole (1 3 )# at the connecting portion (1 1 ) may also be a screw-shaped fastening section ( 132). The ball and socket joints (20 " both in the shape of a bowl, the outer peripheral surface of which forms a half
圓球形樞接部（2 1 )，於較大徑端之内部形成半圓球形 凹穴狀的半圓球形球窩槽（22)，且該些球窩關節（2 中又有貝孔（2 3 )連通半圓球形球窩槽（2 2 ) ，該些球窩關節（2 〇 )係以其半圓球形樞接部（2 1 ) 可轉動地樞設於另—球窩㈣（20)之半圓球形球寓槽 (2 2 )方式串接組合，位於一側之球窩關節（2 〇 )以 其半圓球形樞接部（2丄）可轉動地樞設於該心軸接頭（ 10)之半圓球形球窩槽（12)中。 該關節定位件（30)外周面具有一球狀樞接部（3 3，=部設有一貫穿的固接孔（32)，該固接孔（ r , . . ^ 疋1 1干1 3 0 )以其球狀柩接 &入3:)可轉動地樞設於該些串接之球窩關冑（2㈡ 、、且δ另端之半圓球形球窩槽（2 2 )中。 該可撓性連接件（40)係包括一可換 、以及分設於該可撓性條（4 ( 4 1 ) …及第二組接部（43()4二兩…-組接部" „^^ ^ 该弟一組接部（42)外 周面叹有敎部，該可撓性逹接 i 節定位# f q u 4 0 )係牙设於該關 件（3〇)及該些球寫關節（20)申，並以第二 8 200841955 组接部（4 3 )固定於該關節定位件（3 〇 )之固接孔（ 3 2 )中’以第一組接部（4 2 )螺設於該心轴接頭（1 0 )中孔（1 3 )之組接段（1 3 1 )處，前述之可撓性 條（4 1 )可為鋼索或其他等效之構件。 如第三圖所示之第二較佳實施例，由圖中可以見及該 心軸杈（1)係包括一心軸接頭（1〇)、數球窩關節（ 2 0 )、一關節定位件（3 〇 )以及一可撓性連接件（4 0)，其中： 該心軸接頭（1 0 ) 一端具有一連接部（i i )，用 以連接彎管機之心模控制器，另端形成半圓球形樞接部（ 1 4 )，該心軸接頭（1 〇 )中貫設有一中孔（1 3 )， 該中孔（1 3 )鄰接半圓球形樞接部（1 4 )之區段為螺 孔狀之組接段（1 3 1 )，該中孔（1 3 )位於連接部（ 11)之區段也可為螺孔狀之固接段（132)。 …該些球窩關節（2 〇 )概呈碗狀體，其外周面形成半 ===(21)，於其較大徑端之内部形成半圓球 厂窩槽（22) ’且該些球窩關節（2〇)中設有_ + 孔連通半圓球形球寓槽（22)，該些球窩關冑（貝 係以其半圓球形枢接部（2 1 )可轉動地樞設於另 關節（“）”圓球形球寫槽（22)方式4組：寓 =於-側之球窩( 2 Q )以其半圓球形球窩槽 :樞設於該心軸接頭(1〇)之半圓球形樞接部 該關節定位件（3〇)外周面形成球狀樞接 ^ ο 1 9 200841955 )’於其較大徑端之内部形成半圓球形球窩槽 且該關節定位件（3 〇 )内部設有一固接孔（ 該半圓球形球寓槽（33)，該固接孔（32)可二= 孔，該關節定位件（30)以其半圓球形球寫槽（U、） 可轉動地樞設於該些串接之球寫關節（2 G )組合另端之 半圓球狀樞接部（2 1 )上。 該可撓性連接件（40)係包括一可挽性條（41) 二及分設於該可撓性條（川兩端之第— u以及第二組接部（43)，該第一組接部（42)外 ^ft螺紋部’該可挽性連接件（4 0)係穿設於該關 即疋件（3 Q )及該些球寫關節（2 0 )中，並以第二 組接=固定於該關節定位件（3 〇)之固接孔（3 2) I 、第、、且接( 4 2 )螺設於該心軸接頭（1 〇 )中孔 之、且接奴（1 3 1 )處’前述之可撓性條（4 1 )可為鋼索或其他等效之構件。 如第四、五圖所示，前揭心軸模（1 )第一、第二較 ^實施例於使用時，係以該心軸接頭（1〇)之連接部（ 1 )組接：件推送裝置之心模控制器，並使該心軸模（ 入4聲曲加工之官件（5 〇 )内部，當管件（5 〇 、、破推送至彎管機之彎管裝置處，該心_(i)係被推 廷:至管件待彎曲部位Μ 的内邛，如此，當管件（5 0 )為彎 2置施以彎曲加工時，該些球寓關節（20)可隨同管 二（二）彎曲’並對管件（5〇)之管壁提供必要的支 牙，其中該些球窝關節（2〇)因係呈串連狀，且彼此間 200841955 呈相互緊抵狀態，故在总 在⑤件（5 〇 )彎曲加工過程中，時 時維持著球窩關節（P 、 2 0 )相互緊抵之狀態，確保管件（ 5 0 )彎曲後之形狀不 队+致產生凹陷等現象，使薄形管件（ 5 0 )彎曲加工後呈有佟 1欠，、有優異的產品品質。 田吕件（5 0 )預定部位為彎管裝置完成彎曲加工後 ’該心轴模（1、ga I在4a spherical pivoting portion (2 1 ), forming a semi-spherical spherical recessed semi-spherical spherical socket (22) inside the larger diameter end, and the ball and socket joints (2 in the shell hole (2 3 ) Connected to a semi-spherical ball socket (2 2 ), the ball and socket joint (2 〇) is pivotally pivoted to the semicircular spherical ball of the other ball socket (4) (20) with its semicircular spherical pivot portion (2 1 ) The groove (2 2 ) is connected in series, and the ball and socket joint (2 〇) located on one side is rotatably pivoted on the semicircular spherical ball of the mandrel joint (10) with its semicircular spherical pivoting portion (2 丄) In the socket (12), the outer peripheral mask of the joint positioning member (30) has a spherical pivoting portion (33, the portion is provided with a through fixing hole (32), and the fixing hole (r, . . .疋1 1 dry 1 3 0 ) rotatably pivoted to the tandem ball joints (2(2), and δ at the other end of the semicircular spherical ball socket (with its spherical connection & 3:) 2 2) The flexible connector (40) includes a replaceable, and is separately disposed on the flexible strip (4 ( 4 1 ) ... and the second set of joints (43 ( ) 4 two... -Groups " „^^ ^ The brother’s group of joints (42) sighs outside There is a crotch, the flexible splicing i section positioning # fqu 4 0 ) the teeth are set in the closing member (3 〇) and the ball writing joints (20), and the second 8 200841955 group joint ( 4 3) fixed in the fixing hole (3 2 ) of the joint positioning member (3 )), the first group of joints (4 2 ) is screwed to the hole (1 3 ) of the spindle joint (10) At the junction (1 3 1 ), the aforementioned flexible strip (4 1 ) may be a steel cable or other equivalent member. As shown in the second preferred embodiment, it can be seen from the figure. And the mandrel 杈 (1) includes a mandrel joint (1 〇), a number of ball joints (20), a joint positioning member (3 〇), and a flexible connecting member (40), wherein: The mandrel joint (10) has a connecting portion (ii) at one end for connecting the heart mold controller of the bender, and the other end forms a semicircular spherical pivoting portion (14), which is continuous in the mandrel joint (1 〇) A central hole (1 3 ) is disposed, and the middle hole (1 3 ) is adjacent to the semicircular spherical pivoting portion (1 4 ), and the segment of the semicircular spherical pivoting portion (1 4 ) is a screw-shaped connecting portion (1 3 1 ), and the central hole (1 3 ) The section located at the connecting portion (11) may also be a screw-shaped fastening section ( 132). The ball and socket joints (2 〇) are generally bowl-shaped, and the outer peripheral surface is formed with half ===(21), and a semi-spherical ball socket (22) is formed inside the larger diameter end thereof. The ball and socket joints (2〇) are provided with _+ holes communicating with semicircular spherical ball grooves (22), and the ball and socket joints are rotatably pivoted by the semicircular spherical pivoting portions (2 1 ) In the other joint (")" spherical ball writing groove (22) mode 4 groups: the yoke = the side of the ball socket (2 Q) with its semi-spherical ball socket: pivoted on the mandrel joint (1 〇) The semicircular spherical pivoting portion of the joint positioning member (3〇) forms a spherical pivot joint. ο 1 9 200841955 ) 'The semicircular spherical ball socket is formed inside the larger diameter end and the joint positioning member (3 〇 The inside is provided with a fixing hole (the semicircular spherical ball groove (33), the fixing hole (32) can be two holes, and the joint positioning member (30) can be rotated by the semicircular spherical ball writing groove (U,) The ground pivot is disposed on the semicircular spherical pivot portion (2 1 ) of the other end of the ball joint joint (2 G ). The flexible connector (40) includes a levable strip (41) and is disposed on the flexible strip (the first end of the river - u and the second set of joints (43), the first The connecting portion (42) is externally ft-threaded, and the slidable connecting member (40) is disposed in the closing member (3Q) and the ball writing joint (20), and is Two sets of joints = fixed holes (3 2) fixed to the joint positioning member (3 )) I, the first, and the (4 2 ) screw are provided in the hole of the spindle joint (1 〇), and are connected The slave (1 1 1 ) at the slave (1 3 1 ) may be a steel cable or other equivalent member. As shown in the fourth and fifth figures, the front core mold (1) is first and second. In the case of use, the connection portion (1) of the mandrel joint (1) is assembled: the core mold controller of the piece pushing device, and the mandrel mold is entered into Inside the piece (5 〇), when the pipe fitting (5 〇, , is pushed to the bender of the pipe bender, the heart _(i) is pushed: to the inner part of the pipe to be bent, so when When the pipe fittings (50) are bent and placed for bending, the ball joints (20) can be used Tube 2 (b) bends and provides the necessary teeth for the tube wall of the tube (5〇), wherein the ball and socket joints (2〇) are in series and are in a state of mutual abutment with each other in 200841955. Therefore, during the bending process of 5 pieces (5 〇), the ball and socket joints (P, 20) are maintained in a state of close contact with each other, ensuring that the shape of the pipe (50) is not formed after the bending of the pipe (50). In other cases, the thin pipe fittings (50) are bent and processed to have a defect of 1 ,1, and have excellent product quality. The predetermined part of the Tianlu (50) is the bending device after the bending device is finished. 1, ga I at 4
p精其可撓曲之特性，以心模控制器之 拉動下，脫離該管件（R 、b 0 ) %、曲部位，改移至管件（5 〇)下-個預定彎曲部份處，進行下一次彎曲加工。 經由前述之說明可知’本發明以其創新的心軸模設計 |主要係利用數個球窩接頭（20)呈可轉動地串接組合 可撓性連接件（4 Q)穿設其中，再連接該心轴 :(1〇) ’該些球窩關節（20)間更利用其外周面 =球形樞接部（21)可轉動地枢設於另一球寫關節 〇)之+圓球形球窩槽（2 2)作串接組合，如此， 虽该心軸模（1 )受控伸管 置對哕〜土 k “牛（5 0 )中，配合彎管裝 可八（5 〇 )進行彎曲加工時，該心軸模（1 )因 曲球窩：節（2〇) ☆彎曲後，無論是内、外圍彎 ““15位均呈較小的間隙及高度差，對管件（5 0 )内 且右^ '之辅助支掠，使官件（50)之-曲部位 具有較佳之形狀，不致有管 a .丄 名g仟1 b ϋ )產生内凹之情形， 疋 本發明確可提供一項創新 轴模設計。 ㈣新且*具產業利用價值的心 【圖式簡單說明】 第-圖係本發明心軸模第一較佳實施例之立體分解示 11 200841955 意圖。 立#圖係本發明心軸模第一較佳實施例之組合平面示 思圖。 & ®俦、本發明心軸模第二較佳實施例之組合平面示 第四圖倍楚 „ 用 於薄形管件=二： 轴模第一較佳實施例應 τ3曲時之平面示意圖。 _ 苐五圖係第三圖所示心轴模_ 形管件彎曲時之早而_立θ 、弟—較佳實施例應用於薄 J F W不忍圖。 意圖 弟六圖係習知心軸模應用於薄形管件彎曲 後之平面示p fine its flexible characteristics, with the pull of the heart mold controller, off the pipe (R, b 0) %, curved parts, moved to the pipe (5 〇) under a predetermined bending part, proceed The next bending process. Through the foregoing description, it can be seen that the present invention uses its innovative mandrel die design|mainly through a plurality of ball joints (20) which are rotatably connected in series by a flexible connecting member (4 Q), and then connected. The mandrel: (1〇) 'The ball joints (20) are further circumscribed by the outer peripheral surface = the spherical pivoting portion (21) is pivotally pivoted to the other ball writing joint 〇) + spherical ball socket The groove (2 2) is connected in series, so that although the mandrel die (1) is controlled by the extension pipe, it is placed in the 哕~土 k "牛(5 0 ), and the bending pipe can be bent by eight (5 〇). During processing, the mandrel mold (1) due to the curved ball socket: section (2〇) ☆ after bending, both inner and outer bends "" 15 positions are smaller gaps and height difference, the pipe fittings (50) The inner and right ^'s auxiliary plucking, so that the curved portion of the official member (50) has a better shape, and there is no tube a. 丄 仟 g仟1 b ϋ ) creates a concave condition, and the present invention does provide An innovative shaft mold design. (4) New and * industrial use value of the heart [schematic description of the drawings] The first figure is a three-dimensional decomposition of the first preferred embodiment of the mandrel mold of the present invention 11 200841955 The present invention is a combined plan view of the first preferred embodiment of the mandrel die of the present invention. & ® 俦, the combination of the second preferred embodiment of the mandrel die of the present invention is shown in the fourth figure. For thin tubular fittings = two: The schematic diagram of the first preferred embodiment of the axial mould should be τ3 curved. _ 苐 图 图 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 第三 弯曲 弯曲 弯曲 弯曲 弯曲 弯曲 弯曲 弯曲 弯曲 弯曲 弯曲Intention, the six-figure model is applied to the flat tube after bending of the thin pipe fittings.
【主要元件符號說明】 (1)心軸模 (1 〇)心軸接頭 (1 2 )半圓球形球窩槽 ^ 1 3 1 )組接段 (1 4 )半圓球形樞接部 (2 0 )球窩關節 (2 2 )半圓球形球窩槽 (3 0 )關節定位件 (3 2 )固接孔 (4 〇 )可撓性連接件 (42)第一組接部 (5 〇 )管件 丄1 )連接部 1 3 )中孔 1 3 2 )固接段 2 1 )半圓球形樞接部 2 3 )貫孔 3 1 )球狀拖接部 3 3 )半圓球形球窩槽 41)可撓性條 4 3 )第二組接部 12 200841955 (6 0 )心軸接頭 （ (7 0 )萬向接頭 （ (7 1 1 )球狀樞接部 （ (713)組接部 （ 61)球窩槽 *7 1 )球狀極接件 712)球窩槽 7 2 )支撐環套[Description of main component symbols] (1) Mandrel mold (1 〇) Mandrel joint (1 2 ) Semi-spherical ball socket ^ 1 3 1 ) Group connection (1 4 ) Semi-circular spherical pivot (20) ball Wool joint (2 2 ) semi-spherical ball socket (3 0 ) joint positioning member (3 2 ) fixing hole (4 〇) flexible joint (42) first set joint (5 〇) fitting 丄 1 ) Connecting portion 1 3 ) middle hole 1 3 2 ) fixing portion 2 1 ) semicircular spherical pivoting portion 2 3 ) through hole 3 1 ) spherical drag portion 3 3 ) semicircular spherical ball socket 41) flexible strip 4 3) The second set of joints 12 200841955 (6 0 ) Mandrel joints ((7 0 ) universal joints ((7 1 1 ) spherical pivot joints ( (713) joints ( 61) ball sockets * 7 1) spherical pole piece 712) ball socket 7 2) support ring sleeve
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