TW202108283A - High strength damping chuck - Google Patents

High strength damping chuck Download PDF

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Publication number
TW202108283A
TW202108283A TW108129320A TW108129320A TW202108283A TW 202108283 A TW202108283 A TW 202108283A TW 108129320 A TW108129320 A TW 108129320A TW 108129320 A TW108129320 A TW 108129320A TW 202108283 A TW202108283 A TW 202108283A
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Taiwan
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damping
sleeve
chuck
clamping force
disk portion
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TW108129320A
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Chinese (zh)
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TWI723499B (en
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林原禾
林昆賢
林昆葆
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優藶國際有限公司
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Priority to TW108129320A priority Critical patent/TWI723499B/en
Priority to CN202010800829.5A priority patent/CN112388342B/en
Publication of TW202108283A publication Critical patent/TW202108283A/en
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Publication of TWI723499B publication Critical patent/TWI723499B/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

A high strength damping chuck includes a connection shaft, a clamp, a damping member, a plurality of rotators, a pivot sleeve, and a unidirectional mechanism. The pivot sleeve is on the outer side of the connection shaft and connected with the clamp, so as to be rotatable. When the pivot sleeve rotates to force the clamp for clamping a tool, the plate portion is tightened on the contact position in advance to generate a friction resistance, and a second tightening process forces the two plate portions to be pressed and deformed for increasing the friction resistance again. The unidirectional mechanism is between the pivot sleeve and the damping member, and drives the damping member to rotate through the unidirectional mechanism when the pivot sleeve rotates toward a loosening direction. By orderly releasing the friction resistances, the tool is easily driven when clamped with higher strength.

Description

具高夾緊力之阻尼式夾頭Damping chuck with high clamping force

本發明係關於一種工具用之夾頭，尤指一種具高夾緊力之阻尼式夾頭。The present invention relates to a chuck for tools, especially a damping chuck with high clamping force.

習知工具機刀桿之夾頭，由後套旋動以驅動夾爪對刀具產生夾緊的扭力，為後套對其內部所設的滾珠施壓於連接座後，由連接座和本體以兩相對的面抵接壓迫所生，且扭力在壓迫產生的瞬間達到最大。然而，雖以面抵接壓迫可生迫緊的效果，但因加工機操作之震動或刀桿快速旋轉後停止瞬間所生反向的轉動慣量，都有可能造成連接座或本體鬆動而導致抵接迫緊失效，造成刀具於夾爪上鬆脫的問題，故有須進一步改良。The chuck of the tool bar of the conventional machine tool is rotated by the back sleeve to drive the clamping jaws to generate a clamping torque for the tool. After the back sleeve presses the balls set inside it on the connecting seat, the connecting seat and the body The two opposing faces abut the pressure, and the torque reaches its maximum at the moment the pressure is generated. However, although surface contact pressure can produce a tightening effect, the vibration of the processing machine or the reverse moment of inertia generated at the moment of the rapid rotation of the tool bar may cause the connection seat or the body to loosen and cause the pressure. The clamping failure caused the tool to loosen on the clamping jaws, so further improvement is needed.

如台灣專利公告第I313208號發明專利，係一種工具機刀桿夾頭，主要揭露在其若干夾爪受後套旋動而對刀具生夾緊的扭力時，可將旋轉蓋往鎖定(LOCK)方向旋轉，以鎖定夾爪在防鬆脫狀態，除非將旋轉蓋往非鎖定(UNLOCK)方向旋轉而解鎖，否則防鬆脫狀態將維持而不會減弱或消失，意即後套被鎖住而無法往解鎖方向轉動。For example, Taiwan Patent Publication No. I313208 Invention Patent, which is a tool bar chuck for machine tools, mainly reveals that the rotating cover can be locked (LOCK) when several of its clamping jaws are rotated by the back sleeve to clamp the tool. Rotate in the direction to lock the jaws in the anti-loosening state. Unless the rotating cover is turned to the UNLOCK direction to unlock, the anti-loosing state will remain without weakening or disappearing, which means that the rear sleeve is locked and the Cannot turn to unlock direction.

然而，上述專利雖可透過旋轉蓋往鎖定(LOCK)方向旋轉，以控制制動塊對中軸之齒環產生卡制阻擋而防鬆脫，但在實務上發現，操作人員常在拆換刀具的過程中，忘記將旋轉蓋往非鎖定(UNLOCK)方向先旋轉至解鎖，就以工具對後套進行拆轉的動作，後套因被強行轉動而導致卡制狀態下的制動塊和齒環崩壞，造成整個夾頭損壞的情形發生。However, although the above-mentioned patent can rotate the rotating cover to the LOCK direction to control the brake block to block the gear ring of the central shaft and prevent it from loosening, it is found in practice that the operator often removes and replaces the tool. If you forget to turn the rotating cover in the UNLOCK direction to unlock it first, use a tool to disassemble the back cover. The back cover is forcibly rotated, causing the brake block and ring gear to collapse in the locked state. , Resulting in damage to the entire chuck.

為解決上述課題，本發明提供一種具高夾緊力之阻尼式夾頭，讓夾頭不會有所述損壞的結果發生，即可對刀具提供高夾緊力之功能。In order to solve the above-mentioned problems, the present invention provides a damping chuck with high clamping force, so that the chuck will not be damaged as a result, and can provide the function of high clamping force to the tool.

本發明之一項實施例提供一種具高夾緊力之阻尼式夾頭，其包含一連接軸、一夾具、一阻尼件、複數滾子、一樞轉套以及一單向機構。連接軸具有一端部，且鄰近端部具有一沿徑向環設的第一盤部；夾具接設於端部，可相對連接軸旋動且呈軸向位移，用以夾緊刀具；阻尼件具有一軸孔而可轉動地套設於連接軸，阻尼件於一端具有一沿徑向環設的第二盤部，且以有第二盤部的一端抵接第一盤部，且在第一盤部和第二盤部間存在一間隙；複數滾子設在第二盤部異於第一盤部的一側； 樞轉套在異於第二盤部的一側承靠在複數滾子並可轉動地設在連接軸的外側且連結夾具，樞轉套向一旋緊方向轉動而連動夾具夾緊所述刀具時，第二盤部在前述抵接處對第一盤部預先迫緊而形成一摩擦阻力，且複數滾子在樞轉套再朝旋緊方向轉動時對第二盤部繼續施壓，使第二盤部在有間隙處受壓形變而二次迫緊第一盤部並提高摩擦阻力；單向機構單向驅動地連結在樞轉套和阻尼件之間，樞轉套僅在朝相反旋緊方向之一旋鬆方向轉動時，以單向機構帶動阻尼件相對連接軸轉動，以先後釋放所述二次迫緊和預先迫緊的力量至摩擦阻力解除。An embodiment of the present invention provides a damping chuck with high clamping force, which includes a connecting shaft, a clamp, a damping member, a plurality of rollers, a pivot sleeve, and a one-way mechanism. The connecting shaft has one end, and the adjacent end has a first disk part circumferentially arranged in the radial direction; the clamp is connected to the end and can rotate relative to the connecting shaft and is axially displaced to clamp the tool; damping member It has a shaft hole and is rotatably sleeved on the connecting shaft. The damping member has a second disk portion circumferentially arranged along the radial direction at one end, and the end with the second disk portion abuts against the first disk portion, and There is a gap between the disc part and the second disc part; the plural rollers are arranged on the side of the second disc part different from the first disc part; the pivot sleeve is on the side different from the second disc part to bear against the plural rollers It is rotatably arranged on the outside of the connecting shaft and connected to the clamp. When the pivot sleeve rotates in a tightening direction and the clamp is clamped by the linkage clamp, the second disc part pre-presses the first disc part at the aforesaid abutment. A frictional resistance is formed, and the plurality of rollers continue to press the second disc when the pivot sleeve rotates in the tightening direction, so that the second disc is compressed and deformed at the gap and tightens the first disc twice. The one-way mechanism is connected between the pivot sleeve and the damping member in a one-way driving manner. The pivot sleeve is only rotated in one of the opposite tightening directions, and the damping member is driven by the one-way mechanism to oppose each other. The connecting shaft rotates to successively release the force of the secondary pressing and the pre-pressing until the frictional resistance is relieved.

藉此，利用連接軸有阻尼件之設置，而可在樞轉套向旋緊方向轉動的過程，先以第二盤部和第一盤部在抵接處產生預先迫緊而有所述摩擦阻力，此時夾具即已夾緊所述刀具，且因第一盤部和第二盤部間存在所述間隙，使樞轉套可再向旋緊方向轉動，讓第二盤部受所述滾子之施壓而在有間隙處形變，進而對第一盤部產生二次迫緊以提高所述摩擦阻力，故被夾具所夾緊之刀具，即可達到高夾緊力且不易鬆脫之功效。若欲鬆脫刀具時，只須將樞轉套往旋鬆方向轉動至所述摩擦阻力自然解除即可，不會有夾頭因未解鎖而強行轉動所導致損壞的情形發生。By this, the connecting shaft is provided with a damping element, and the pivot sleeve can be rotated in the tightening direction. First, the second disc part and the first disc part are pre-stressed at the abutting position to cause the friction Resistance. At this time, the clamp has clamped the tool, and because of the gap between the first disc part and the second disc part, the pivot sleeve can be rotated in the tightening direction again, allowing the second disc part to be affected by the The pressure of the roller deforms where there is a gap, and then produces a secondary tightening of the first disc to increase the friction resistance, so the tool clamped by the clamp can achieve high clamping force and is not easy to loosen The effect. If you want to loosen the tool, you only need to rotate the pivot sleeve in the loosening direction until the frictional resistance is naturally relieved, and there will be no damage to the chuck due to the forcible rotation of the chuck because it is not unlocked.

在一較佳實施例中，樞轉套包括一後套和一前套所接合組成，後套對應連接軸的位置而設，前套對應夾具的位置而設，單向機構設於後套。In a preferred embodiment, the pivot sleeve includes a rear sleeve and a front sleeve joined together, the rear sleeve is set corresponding to the position of the connecting shaft, the front sleeve is set corresponding to the position of the clamp, and the one-way mechanism is set on the rear sleeve.

在一較佳實施例中，阻尼件具有一沿其環周而設之棘齒部，單向機構包括一掣動塊和一彈性件，掣動塊的位置對應棘齒部而可樞擺地設在後套之一容槽中，彈性件也在容槽內且位在掣動塊旁，彈性件常態壓掣於掣動塊單向卡掣於棘齒部，而僅在後套朝旋鬆方向轉動時帶動阻尼件轉動。In a preferred embodiment, the damping member has a ratchet part along its circumference, and the one-way mechanism includes a detent block and an elastic part. The position of the detent part corresponds to the ratchet part and is pivotable. Set in one of the receptacles of the back sleeve, the elastic piece is also in the receptacle and is located beside the detent block. The elastic piece is normally pressed and depressed on the detent piece to be clamped to the ratchet part in one direction, and only rotates in the back sleeve. Rotating in the loose direction drives the damping member to rotate.

藉此，後套朝旋鬆方向轉動時，可藉由掣動塊卡掣在棘齒部而帶動阻尼件轉動至所述摩擦阻力自然解除，且後套在朝旋緊方向轉動時，也能藉由掣動塊在棘齒部上跨齒所生的聲響對操作人員達到提示的效果，讓操作人員獲知掣動塊已確實卡掣於棘齒部而無背隙，避免後套因背隙存在而空轉。Thereby, when the back sleeve rotates in the unscrewing direction, the damper can be driven to rotate by the detent block to the ratchet part until the friction resistance is naturally relieved, and the back sleeve can also be rotated in the tightening direction. The sound generated by the detent block across the ratchet teeth can prompt the operator, letting the operator know that the detent block is indeed locked in the ratchet part without backlash, and avoid backlash due to backlash. Exist and idling.

在一較佳實施例中，單向機構包括一滾動件，滾動件可轉動地設在後套之一卡槽中，僅在後套朝旋鬆方向轉動時，滾動件在卡槽中被定位於一卡掣位置，以卡掣於阻尼件之環周而帶動阻尼件單向轉動。In a preferred embodiment, the one-way mechanism includes a rolling element, the rolling element is rotatably arranged in a slot of the back sleeve, and the rolling element is positioned in the slot only when the back sleeve rotates in the loosening direction At a detent position, the detent is clamped on the circumference of the damping element to drive the damping element to rotate in one direction.

在一較佳實施例中，卡槽順著後套的轉動方向由深而淺且在相異的兩端形成一深端和一淺端，後套朝旋鬆方向轉動時，滾動件位在淺端且被定位於卡掣位置，以卡掣於阻尼件之環周；另後套朝旋緊方向轉動時，滾動件移向深端且脫離卡掣位置而可自由轉動。In a preferred embodiment, the card slot changes from deep to shallow along the direction of rotation of the back sleeve and forms a deep end and a shallow end at different two ends. When the back sleeve rotates in the loosening direction, the rolling element is located The shallow end is positioned at the detent position so as to be detented on the circumference of the damping element; when the back sleeve rotates in the tightening direction, the rolling element moves to the deep end and escapes from the detent position and can rotate freely.

在一較佳實施例中，單向機構更包括一彈性件，彈性件也在卡槽中且位在滾動件旁，滾動件被彈性件常態推向淺端。In a preferred embodiment, the one-way mechanism further includes an elastic member. The elastic member is also in the slot and located beside the rolling member, and the rolling member is normally pushed to the shallow end by the elastic member.

在一較佳實施例中，單向機構更包括一保持器以及一環圈件，所述滾動件的數量為複數，保持器呈環形而被定位在環圈件中，複數滾動件環設於保持器，環圈件固接於後套而與其同動，於環圈件的內周具有複數所述卡槽，各卡槽係對應一前述滾動件而設。In a preferred embodiment, the one-way mechanism further includes a retainer and a ring member, the number of the rolling members is plural, the retainer is ring-shaped and is positioned in the ring member, and the plurality of rolling members are arranged around the retainer In the device, the ring member is fixedly connected to the back sleeve to move with it, and the inner circumference of the ring member is provided with a plurality of said grooves, and each of the grooves is provided corresponding to one of the aforementioned rolling members.

藉此，後套朝旋鬆方向轉動時，可帶動阻尼件轉動至所述摩擦阻力自然解除，且後套朝旋緊方向轉動時，也能藉由滾動件保持在卡掣位置而卡掣在阻尼件的環周，後套在帶動阻尼件單向轉動的任何時候都不會有背隙，讓後套能順暢地帶動阻尼件朝旋鬆方向轉動。Thereby, when the back sleeve rotates in the loosening direction, the damping member can be driven to rotate until the friction resistance is naturally released, and when the back sleeve rotates in the tightening direction, the rolling element can also be held in the latching position by the rolling element. On the circumference of the damping element, the back sleeve will not have backlash at any time when the damping element is driven to rotate in one direction, so that the back sleeve can smoothly drive the damping element to rotate in the loosening direction.

為便於說明本發明於上述發明內容一欄中所表示的中心思想，茲以具體實施例表達。實施例中各種不同物件係按適於說明之比例、尺寸、變形量或位移量而描繪，而非按實際元件的比例予以繪製，合先敘明。In order to facilitate the description of the central idea of the present invention expressed in the column of the above-mentioned summary of the invention, specific embodiments are used to express. The various objects in the embodiment are drawn according to the proportion, size, deformation or displacement suitable for illustration, rather than drawn according to the proportion of the actual element, which will be described first.

請參閱圖1至圖11所示，本發明提供一種具高夾緊力之阻尼式夾頭100，其包含一連接軸10、一夾具20、一阻尼件30、複數滾子40、一樞轉套50以及一單向機構60，其中：1 to 11, the present invention provides a damping chuck 100 with high clamping force, which includes a connecting shaft 10, a clamp 20, a damping member 30, a plurality of rollers 40, a pivot Set of 50 and a one-way mechanism 60, of which:

所述連接軸10，其具有一端部11，且鄰近端部11具有一第一盤部12，此第一盤部12是沿連接軸10的徑向環設。於本實施例中，連接軸10在異於端部11的一端和一刀柄13連接，而可接合於工具機之主軸(圖中未示)。The connecting shaft 10 has an end portion 11, and adjacent to the end portion 11 has a first disc portion 12, and the first disc portion 12 is circumferentially arranged along the radial direction of the connecting shaft 10. In this embodiment, the connecting shaft 10 is connected to a tool holder 13 at an end different from the end 11, and can be connected to the main shaft of the machine tool (not shown in the figure).

所述夾具20，其接設於端部11，可相對連接軸10旋動且呈軸向位移，夾具20是用以夾緊刀具70。於本實施例中，夾具20包括一爪座21、一螺桿22和三個夾爪23，此述之爪座21設有三個導槽211，這三個導槽211於爪座21約略以120度等角而設。螺桿22在爪座21內可轉動地接設在連接軸10的端部11，且螺桿22的一端有一座部221，在此座部221並具有三個滑溝222，各夾爪23是以一端設在對應的滑溝222，且各夾爪23同時位在對應的導槽211，當螺桿22轉動而相對端部11軸向縮入時，夾爪23會順著所在之導槽211及滑溝222中移動，此時三個夾爪23會相對遠離而擴張；另當螺桿22轉動而相對端部11軸向伸出時，三個夾爪23變成相對靠近而內縮。The clamp 20 is connected to the end 11 and can be rotated relative to the connecting shaft 10 and exhibits axial displacement. The clamp 20 is used to clamp the tool 70. In this embodiment, the clamp 20 includes a claw base 21, a screw 22, and three clamping claws 23. The claw base 21 described here is provided with three guide grooves 211. The three guide grooves 211 are approximately 120 in the claw base 21. Set at equal angles in degrees. The screw 22 is rotatably connected to the end 11 of the connecting shaft 10 in the claw seat 21, and one end of the screw 22 has a seat 221, where the seat 221 also has three sliding grooves 222, and each clamping jaw 23 is One end is provided in the corresponding sliding groove 222, and each clamping jaw 23 is located in the corresponding guide groove 211 at the same time. When the screw 22 rotates and the opposite end 11 is axially retracted, the clamping jaw 23 will follow the guide groove 211 and When the sliding groove 222 moves, the three clamping jaws 23 will be relatively far away and expand; when the screw 22 rotates and the opposite end 11 extends axially, the three clamping jaws 23 become relatively close and retracted.

所述阻尼件30，其具有一軸孔31而可轉動地套設於連接軸10，阻尼件30於一端具有一第二盤部32，此第二盤部32是沿阻尼件30的徑向環設。阻尼件30在有第二盤部32的一端有一凸出部33(如圖3所示)，此凸出部33抵接於第一盤部12，且在第一盤部12和第二盤部32間存在一間隙G(如圖6所示)，此間隙G於本實施例中係第一盤部12和第二盤部32之間懸空所形成，但不以此為限，如第二盤部32也可以在朝向第一盤部12的一側部分挖空(圖中未示)，而在第二盤部32貼合第一盤部12時，改以挖空處和第一盤部12間形成所述間隙G。The damping member 30 has a shaft hole 31 and is rotatably sleeved on the connecting shaft 10. The damping member 30 has a second disk portion 32 at one end, and the second disk portion 32 is a ring along the radial direction of the damping member 30 Assume. The damping member 30 has a protruding portion 33 (as shown in FIG. 3) at one end of the second disc portion 32, and the protruding portion 33 abuts against the first disc portion 12, and is located between the first disc portion 12 and the second disc portion 12 There is a gap G between the parts 32 (as shown in FIG. 6). The gap G is formed by the suspension between the first disc part 12 and the second disc part 32 in this embodiment, but it is not limited to this. The second disc portion 32 can also be hollowed out on the side facing the first disc portion 12 (not shown in the figure), and when the second disc portion 32 is attached to the first disc portion 12, the cutout and the first The gap G is formed between the disk portions 12.

所述複數滾子40，是設在第二盤部32異於第一盤部12的一側，所述滾子40於本實施例中皆為滾珠，但不此為限，在不同實施例中亦可為滾柱。The plurality of rollers 40 are arranged on the side of the second disk portion 32 that is different from the first disk portion 12. In this embodiment, the rollers 40 are all balls, but it is not limited to this. In different embodiments The middle can also be a roller.

所述樞轉套50，其在異於第二盤部32的一側承靠在複數滾子40，樞轉套50並可轉動地設在連接軸10的外側，且樞轉套50連結於夾具20，以帶動夾具20相對連接軸10呈軸向位移。於本實施例中，樞轉套50包括一後套51和一前套52所接合組成，後套51對應連接軸10的位置而設，前套52則對應夾具20的位置而設，單向機構60於本實施例中是設在後套51。此外，爪座21在前套52之中而同軸連結於後套51，後套51轉動而經爪座21和三個夾爪23帶動螺桿22相對連接軸10呈軸向位移，三個夾爪23隨螺桿22之軸向位移而如前所述擴張或內縮。本實施例之後套51，其內部呈階級狀而形成一階緣511，以此階緣511承靠在滾子40。The pivot sleeve 50 bears against the plurality of rollers 40 on a side different from the second disk portion 32, the pivot sleeve 50 is rotatably provided on the outside of the connecting shaft 10, and the pivot sleeve 50 is connected to The clamp 20 drives the clamp 20 to move axially relative to the connecting shaft 10. In this embodiment, the pivot sleeve 50 includes a rear sleeve 51 and a front sleeve 52 which are joined together. The rear sleeve 51 is set corresponding to the position of the connecting shaft 10, and the front sleeve 52 is set corresponding to the position of the clamp 20. The mechanism 60 is provided in the back cover 51 in this embodiment. In addition, the claw seat 21 is coaxially connected to the rear sleeve 51 in the front sleeve 52. The rear sleeve 51 rotates and drives the screw 22 to move axially relative to the connecting shaft 10 through the claw seat 21 and the three clamping jaws 23. The three clamping jaws With the axial displacement of the screw 22, the screw 23 expands or contracts as described above. After this embodiment, the sleeve 51 has a stepped shape inside to form a stepped edge 511, and the stepped edge 511 bears against the roller 40.

上述之樞轉套50，當其向一旋緊方向D1(如圖5所示)轉動而連動夾具20夾緊刀具70時，第二盤部32之凸出部33對第一盤部12預先迫緊而形成一摩擦阻力，且複數滾子40在樞轉套50再朝旋緊方向D1轉動時，以階緣511經所承靠的滾子40對第二盤部32繼續施壓，使第二盤部32在有間隙G處受壓形變而二次迫緊第一盤部12，所述摩擦阻力因此提高。前述二次迫緊，是在第二盤部32在凸出部33對第一盤部12預先迫緊之情況下，由第二盤部32在有間隙G處受壓形變而對第一盤部12再施壓迫緊，故即使二次迫緊所造成所述摩擦阻力提高的狀態消失時，預先迫緊的扭力仍在，所述摩擦阻力仍存在於第一盤部12和第二盤部32間。The above-mentioned pivot sleeve 50, when it rotates in a tightening direction D1 (as shown in FIG. 5) and the linkage clamp 20 clamps the tool 70, the protruding portion 33 of the second disc portion 32 advances to the first disc portion 12 Is compressed to form a frictional resistance, and when the pivot sleeve 50 rotates in the tightening direction D1, the step edge 511 continues to press the second disc 32 through the roller 40 supported by it, so that The second disk portion 32 is compressed and deformed at the gap G to tighten the first disk portion 12 twice, and the frictional resistance is therefore increased. The aforementioned secondary tightening is when the second disc portion 32 is pre-stressed against the first disc portion 12 by the protruding portion 33, the second disc portion 32 is compressed and deformed at the gap G to press and deform the first disc portion 32. The part 12 is compressed again, so even if the state of increased frictional resistance caused by the secondary tightening disappears, the pre-tensioned torsion force is still there, and the frictional resistance still exists in the first disc part 12 and the second disc part 32 rooms.

所述單向機構60，其係單向驅動地連結在樞轉套50和阻尼件30之間。樞轉套50除了可往旋緊方向D1轉動，也可反向而往一旋鬆方向D2(如圖5所示)轉動，樞轉套50僅在朝旋鬆方向D2轉動時，以單向機構60帶動阻尼件30相對連接軸10轉動，以先後釋放所述二次迫緊和預先迫緊的扭力至前述的摩擦阻力解除。The one-way mechanism 60 is connected between the pivot sleeve 50 and the damping member 30 in a one-way driving manner. The pivot sleeve 50 can not only rotate in the tightening direction D1, but also in the opposite direction to a loosening direction D2 (as shown in Figure 5). The pivot sleeve 50 only rotates in the loosening direction D2 in a one-way direction. The mechanism 60 drives the damping member 30 to rotate relative to the connecting shaft 10 to sequentially release the torsion force of the secondary tightening and the pre-tensioning until the aforementioned frictional resistance is relieved.

於本實施例中，阻尼件30具有一棘齒部34，此棘齒部34是沿著阻尼件30的環周而設，而單向機構60包括一掣動塊61和一彈性件62，掣動塊61的位置對應棘齒部34而設在後套51之一容槽512中，且掣動塊61可在容槽512中樞擺。所述彈性件62也在容槽512內，且彈性件62位在掣動塊61旁而常態壓掣於掣動塊61，使掣動塊61單向卡掣於棘齒部34，所以在後套51朝旋緊方向D1或旋鬆方向D2轉動時，僅在朝旋鬆方向D2轉動會帶動阻尼件30轉動。本實施例之棘齒部34有36齒，掣動塊61在阻尼件30每轉動10度時卡合於一齒，但不以此為限，棘齒部34可增減齒數，以調整掣動塊61在阻尼件30轉動時卡合於齒的角度。In this embodiment, the damping member 30 has a ratchet portion 34, which is arranged along the circumference of the damping member 30, and the one-way mechanism 60 includes a detent block 61 and an elastic member 62, The position of the detent block 61 corresponds to the ratchet part 34 and is disposed in a receiving slot 512 of the rear sleeve 51, and the detent block 61 can pivot in the receiving slot 512. The elastic member 62 is also in the accommodating slot 512, and the elastic member 62 is located next to the detent block 61 and is normally pressed against the detent block 61, so that the detent block 61 is unidirectionally clamped to the ratchet portion 34, so When the rear sleeve 51 rotates in the tightening direction D1 or the loosening direction D2, only rotating in the loosening direction D2 will drive the damping member 30 to rotate. The ratchet part 34 of this embodiment has 36 teeth. The detent block 61 is engaged with one tooth every time the damping member 30 rotates 10 degrees, but it is not limited to this. The ratchet part 34 can increase or decrease the number of teeth to adjust the switch. The movable block 61 is engaged with the angle of the tooth when the damper 30 rotates.

承上，本實施例之單向機構60包括一限位片63，限位片63是設在後套51且蓋設在容槽512，以限位片63限制掣動塊61和彈性件62於容槽512中，避免掣動塊61和彈性件62從容槽512中跳脫。所述彈性件62，於本實施例中為彈片，但不以此為限，彈性件62亦可為壓縮彈簧(圖中未示)，亦可達到常態壓掣於掣動塊61之作用。In conclusion, the one-way mechanism 60 of this embodiment includes a limiting piece 63. The limiting piece 63 is provided on the rear sleeve 51 and covered with the receiving groove 512, and the limiting piece 63 restricts the detent block 61 and the elastic member 62 In the accommodating groove 512, the detent block 61 and the elastic member 62 are prevented from jumping out of the accommodating groove 512. The elastic member 62 is an elastic piece in this embodiment, but it is not limited to this. The elastic member 62 can also be a compression spring (not shown in the figure), and can also achieve the function of pressing the detent block 61 in a normal state.

實際操作本發明之阻尼式夾頭100以安裝刀具70時，刀具70以鑽頭為例，操作者可徒手轉動後套51以連動爪座21旋轉至三個夾爪23擴張，即可將刀具70放置在三個夾爪23間，接著往旋緊方向D1轉動後套51至三個夾爪23夾住刀具70後再繼續轉動後套51，此時階緣511會經所承靠的滾子40對第二盤部32施壓至凸出部33對第一盤部12形成前述預先迫緊而產生所述摩擦阻力，讓夾爪23對刀具70夾緊，操作者接著可再往旋緊方向D1轉動後套51，滾子40受階緣511再施力之下會對第二盤部32繼續施壓，使第二盤部32在有間隙G處受壓形變而二次迫緊第一盤部12(如圖7所示)，所述摩擦阻力因而提高，此時除了三個夾爪23對所夾住的刀具70具有更高的夾緊力之外，也因所述摩擦阻力提高而不易鬆脫，操作者必須以工具耗費力氣才能再將後套51往旋鬆方向D2轉動，因而形成易鎖但不易拆的特點。In actual operation of the damping chuck 100 of the present invention, when the tool 70 is installed, the tool 70 is taken as an example of a drill. The operator can rotate the back sleeve 51 with his bare hands to rotate the claw seat 21 until the three clamping claws 23 expand, and then the tool 70 Place it between the three clamping jaws 23, and then rotate the back sleeve 51 in the tightening direction D1 until the three clamping jaws 23 clamp the cutter 70, and then continue to rotate the back sleeve 51. At this time, the step edge 511 will pass the roller on which it rests. 40 presses the second disk portion 32 until the protrusion 33 forms the aforementioned pre-tension on the first disk portion 12 to generate the frictional resistance, so that the clamping jaw 23 clamps the tool 70, and the operator can then tighten it again Rotate the rear sleeve 51 in the direction D1, the roller 40 will continue to press the second disc 32 under the further force of the step edge 511, so that the second disc 32 is compressed and deformed at the gap G and tightens the second disc again. A disk portion 12 (as shown in FIG. 7), the frictional resistance is thus increased. At this time, in addition to the higher clamping force of the three clamping jaws 23 on the clamped tool 70, the frictional resistance is also It is not easy to loosen when it is raised, and the operator must use tools and effort to rotate the back cover 51 in the loosening direction D2, which is easy to lock but not easy to disassemble.

承上，隨著後套51往旋緊方向D1轉動，掣動塊61在棘齒部34上因為跨齒而產生咔咔聲響，所以在後套51往旋緊方向D1轉動至一定緊度而不易再繼續轉動時，操作人員可藉由所述聲響獲知掣動塊61與棘齒部34已無背隙，表示掣動塊61已確實卡掣於棘齒部34上。Continuing, as the rear sleeve 51 rotates in the tightening direction D1, the detent block 61 produces a clicking sound on the ratchet portion 34 due to the straddling of the teeth. Therefore, the rear sleeve 51 rotates in the tightening direction D1 to a certain degree of tightness. When it is difficult to continue to rotate, the operator can learn from the sound that there is no backlash between the pawl 61 and the ratchet part 34, which means that the pawl 61 is indeed locked on the ratchet part 34.

若要將刀具70從三個夾爪23中取離，操作者必須以工具(例如扳手)將後套51往旋鬆方向D2轉動，即藉由所述單向機構60帶動阻尼件30轉動，此時三個夾爪23不會被馬上鬆脫，而是在後套51往旋鬆方向D2轉動的過程中，隨著階緣511對滾子40的施壓逐漸減退，而先讓前述第二盤部32在有間隙G處因受壓產生的形變恢復原狀，以解除所述二次迫緊，接著再讓前述預先迫緊的力量消失，此時所述摩擦阻力便完全解除，三個夾爪23便會開始擴張至使刀具70鬆脫。To remove the cutter 70 from the three clamping jaws 23, the operator must use a tool (such as a wrench) to rotate the back sleeve 51 in the loosening direction D2, that is, the one-way mechanism 60 drives the damping member 30 to rotate, At this time, the three clamping jaws 23 will not be released immediately. Instead, as the pressure of the step edge 511 on the roller 40 gradually decreases as the pressure of the step edge 511 on the roller 40 is gradually reduced during the rotation of the rear sleeve 51 in the loosening direction D2, the aforementioned first The deformation of the two discs 32 due to pressure at the gap G returns to its original shape to release the secondary compression, and then let the aforementioned pre-tensioning force disappear. At this time, the frictional resistance is completely released. The clamping jaw 23 will begin to expand to release the cutter 70.

由上述之說明不難發現本發明之優點，在於：From the above description, it is not difficult to find the advantages of the present invention in:

1.利用連接軸10有阻尼件30之設置，而可在樞轉套50向旋緊方向D1轉動的過程，先以第二盤部32和第一盤部12在抵接處產生預先迫緊而有所述摩擦阻力，且因第一盤部12和第二盤部32間存在間隙G，使樞轉套50可再向旋緊方向D1轉動，讓第二盤部32受滾子40施壓而在有間隙G處形變，進而對第一盤部12產生二次迫緊以提高所述摩擦阻力，故被夾具20所夾緊之刀具70，即可達到高夾緊力且不易鬆脫之功效。若欲鬆脫刀具70時，只須將樞轉套50往旋鬆方向D2轉動至所述摩擦阻力自然解除即可，不會有夾頭因未解鎖而強行轉動所導致損壞的情形發生。1. The connecting shaft 10 is provided with a damping member 30, and the pivot sleeve 50 can be rotated in the tightening direction D1. First, the second disc portion 32 and the first disc portion 12 are pre-stressed at the abutment. With the frictional resistance, and because of the gap G between the first disk portion 12 and the second disk portion 32, the pivot sleeve 50 can be rotated in the tightening direction D1, so that the second disk portion 32 is applied by the roller 40. It deforms at the gap G under pressure, and then produces a secondary tightening of the first disc 12 to increase the frictional resistance. Therefore, the tool 70 clamped by the clamp 20 can achieve a high clamping force and is not easy to loosen The effect. If you want to loosen the tool 70, you only need to rotate the pivot sleeve 50 in the loosening direction D2 until the frictional resistance is naturally released, and there will be no damage to the chuck due to the forcible rotation of the chuck because it is not unlocked.

2.後套51朝旋鬆方向D2轉動時，可藉由掣動塊61卡掣在棘齒部34而帶動阻尼件30轉動至所述摩擦阻力自然解除，且後套51若是朝旋緊方向D1轉動，也能藉由掣動塊61在棘齒部34上跨齒時所產生的聲響對操作人員達到提示的效果，讓操作人員獲知掣動塊61已確實卡掣於棘齒部34而無背隙，避免後套51因背隙存在而空轉。2. When the rear sleeve 51 rotates in the loosening direction D2, the damping member 30 can be driven to rotate until the frictional resistance is naturally relieved by the detent block 61 being locked on the ratchet part 34, and if the rear sleeve 51 moves in the tightening direction D1 rotation can also prompt the operator by the sound generated by the detent block 61 straddling the teeth on the ratchet part 34, so that the operator knows that the detent part 61 is indeed locked on the ratchet part 34. There is no backlash, and the back cover 51 is prevented from idling due to the existence of backlash.

請參閱圖8所示，為本發明之第二實施例，本實施例之單向機構60，其包括滾動件61A和彈性件62A，其與前述實施例之主要差異在於，該滾動件61A於本實施例中為滾珠，彈性件62A於本實施例中為壓縮彈簧，其可轉動地設在後套51之一卡槽53A中，彈性件62A也在卡槽53A中且位在滾動件61A旁。Please refer to FIG. 8, which is a second embodiment of the present invention. The one-way mechanism 60 of this embodiment includes a rolling element 61A and an elastic element 62A. The main difference from the previous embodiment is that the rolling element 61A is In this embodiment, it is a ball. In this embodiment, the elastic member 62A is a compression spring, which is rotatably disposed in a groove 53A of the back sleeve 51, and the elastic member 62A is also in the groove 53A and is located in the rolling member 61A. beside.

承上，所述卡槽53A，其順著後套51的轉動方向由深而淺，並且在相異的兩端形成一深端531A和一淺端532A，且滾動件61A於本實施例中是常態被彈性件62A推向淺端532A，滾動件61A因而在卡槽512A被定位於一卡掣位置P，而僅在後套51朝旋鬆方向D2轉動時，滾動件61A會在卡掣位置P卡掣於阻尼件30之環周，故僅在後套51朝旋鬆方向D2轉動時帶動阻尼件30單向轉動；另後套51朝旋緊方向D1轉動時，滾動件61A會移向深端531A且脫離卡掣位置P，故滾動件61A可自由轉動而不會對阻尼件30之環周產生卡掣。On the other hand, the card slot 53A changes from deep to shallow along the rotation direction of the back sleeve 51, and a deep end 531A and a shallow end 532A are formed at two different ends, and the rolling element 61A is in this embodiment Normally, it is pushed to the shallow end 532A by the elastic member 62A. Therefore, the rolling member 61A is positioned at a latching position P in the latching groove 512A, and only when the rear sleeve 51 rotates in the loosening direction D2, the rolling member 61A is latched. The position P is locked on the circumference of the damping member 30, so the damping member 30 is driven to rotate in one direction only when the rear sleeve 51 rotates in the loosening direction D2; when the rear sleeve 51 rotates in the tightening direction D1, the rolling member 61A will move To the deep end 531A and away from the latching position P, the rolling element 61A can rotate freely without jamming the circumference of the damping element 30.

藉此，本實施例除了後套51朝旋鬆方向D2轉動時，可帶動阻尼件30轉動至所述摩擦阻力自然解除，而可達到與第一實施例相同之功效外，若後套51是朝旋緊方向D1轉動，此時也能藉由滾動件61A被彈性件62A保持在卡掣位置P，而可在後套51朝旋鬆方向D2轉動時，卡掣在阻尼件30的環周，所以後套51在帶動阻尼件30轉動的任何時候都不會有背隙，讓後套51能順暢地帶動阻尼件30朝旋鬆方向D2轉動。Thereby, this embodiment can drive the damping member 30 to rotate until the frictional resistance is naturally released when the back sleeve 51 rotates in the loosening direction D2, and can achieve the same effect as the first embodiment, if the back sleeve 51 is Rotate in the tightening direction D1. At this time, the rolling element 61A can also be held in the latching position P by the elastic element 62A. When the rear sleeve 51 rotates in the loosening direction D2, the latch is latched on the circumference of the damper 30 Therefore, there will be no backlash at any time when the rear sleeve 51 drives the damping member 30 to rotate, so that the rear sleeve 51 can smoothly drive the damping member 30 to rotate in the loosening direction D2.

請參閱圖9至圖11所示，為本發明之第三實施例，和第二實施例之主要差異在於，本實施例之單向機構60包括複數滾動件61B、一保持器62B，以及一環圈件63B，沒有第二實施例所述之彈性件62A，滾動件61B為滾柱。其中，保持器62B呈環形而被定位在環圈件63B之中，複數滾動件61B則是環設於保持器62B，而環圈件63B固接於後套51而與其同動，於環圈件63B的內周具有複數卡槽64B，各卡槽64B亦順著後套51的轉動方向由深而淺，並且在相異的兩端形成一深端641B和一淺端642B，各卡槽64B係對應一前述滾動件61B而設。Please refer to FIGS. 9 to 11, which are the third embodiment of the present invention. The main difference from the second embodiment is that the one-way mechanism 60 of this embodiment includes a plurality of rolling elements 61B, a retainer 62B, and a ring The ring member 63B does not have the elastic member 62A described in the second embodiment, and the rolling member 61B is a roller. Among them, the retainer 62B has a ring shape and is positioned in the ring member 63B, the plurality of rolling members 61B are ringed around the retainer 62B, and the ring member 63B is fixed to the rear sleeve 51 to move with the ring member 63B. The inner circumference of the piece 63B has a plurality of card slots 64B. Each card slot 64B also changes from deep to shallow along the rotation direction of the rear sleeve 51, and a deep end 641B and a shallow end 642B are formed at two different ends. 64B is corresponding to the aforementioned rolling element 61B.

承上，藉由卡槽64B在深端641B和淺端642B之間有由深而淺之結構，而當後套51朝旋鬆方向D2轉動時，環圈件63B隨後套51轉動而以淺端642B讓滾動件61B定位在所述卡掣位置P，以卡掣在阻尼件30的環周，同樣能帶動阻尼件30單向轉動；另當後套51朝旋緊方向D1轉動時，環圈件63B隨後套51轉動而讓滾動件61B往深端641B移動，進而脫離卡掣位置P，滾動件61B此時可自由轉動而不會對阻尼件30之環周產生卡掣。Continuing, there is a deep and shallow structure between the deep end 641B and the shallow end 642B by the slot 64B, and when the back sleeve 51 rotates in the loosening direction D2, the ring member 63B then rotates the sleeve 51 to become shallower The end 642B allows the rolling member 61B to be positioned at the detent position P to be detented on the circumference of the damping member 30, which can also drive the damping member 30 to rotate in one direction; in addition, when the rear sleeve 51 rotates in the tightening direction D1, the ring The ring member 63B then rotates the sleeve 51 to allow the rolling member 61B to move to the deep end 641B, and then to leave the latching position P. The rolling member 61B can rotate freely at this time without jamming the circumference of the damping member 30.

藉此，本實施例除可達到與第一實施例相同之功效外，可由卡槽64B在深端641B和淺端642B之間有由深而淺之結構，而在環圈件63B隨後套51轉動的過程之中，複數滾動件61B能在卡槽64B的深端641B和淺端642B之間順暢地定位在卡掣位置P，或是從卡掣位置P脫離，以達到和第二實施例能讓後套51能順暢地帶動阻尼件30朝旋鬆方向D2轉動之功效。Therefore, in addition to achieving the same effect as the first embodiment, this embodiment can have a deep and shallow structure between the deep end 641B and the shallow end 642B by the slot 64B, and the ring member 63B is then covered with 51 During the rotation, the plurality of rolling elements 61B can be smoothly positioned at the latching position P between the deep end 641B and the shallow end 642B of the latching groove 64B, or separated from the latching position P, so as to achieve the compatibility with the second embodiment The effect of allowing the back cover 51 to smoothly drive the damping member 30 to rotate in the loosening direction D2.

以上所舉實施例僅用以說明本發明而已，非用以限制本發明之範圍。舉凡不違本發明精神所從事的種種修改或變化，俱屬本發明意欲保護之範疇。The above-mentioned embodiments are only used to illustrate the present invention, and are not used to limit the scope of the present invention. All modifications or changes made without violating the spirit of the present invention fall within the scope of the present invention's intended protection.

100:阻尼式夾頭 10:連接軸 11:端部 12:第一盤部 13:刀柄 20:夾具 21:爪座 211:導槽 22:螺桿 221:座部 222:滑溝 23:夾爪 30:阻尼件 31:軸孔 32:第二盤部 33:凸出部 34:棘齒部 40:滾子 50:樞轉套 51:後套 511:階緣 512:容槽 52:前套 53A:卡槽 531A:深端 532A:淺端 60:單向機構 61:掣動塊 61A:滾動件 61B:滾動件 62:彈性件 62A:彈性件 62B:保持器 63:限位片 63B:環圈件 64B:卡槽 641B:深端 642B:淺端 70:刀具 D1:旋緊方向 D2:旋鬆方向 G:間隙 P:卡掣位置100: Damping chuck 10: connecting shaft 11: end 12: The first set 13: Knife handle 20: Fixture 21: Claw seat 211: Guide Groove 22: Screw 221: Seat 222: Slippery Ditch 23: Gripper 30: Damping parts 31: Shaft hole 32: The second part 33: Protruding part 34: Ratchet 40: Roller 50: pivot sleeve 51: back cover 511: Fate 512: Tolerance 52: front set 53A: Card slot 531A: deep end 532A: shallow end 60: One-way mechanism 61: Move block 61A: Rolling pieces 61B: Rolling pieces 62: Elastic 62A: Elastic part 62B: Retainer 63: limit piece 63B: Ring parts 64B: card slot 641B: deep end 642B: shallow end 70: Tool D1: Tightening direction D2: Unscrew direction G: gap P: Card position

圖1係本發明第一實施例之阻尼式夾頭之立體外觀圖。 圖2係本發明第一實施例之阻尼式夾頭之立體分解圖。 圖3係本發明第一實施例之阻尼件在有第二盤部的一端所示之立體外觀圖 圖4係圖1於4-4剖線所視之剖視圖。 圖5係圖4於5-5剖線所視之剖視圖。 圖6係圖4於A處之局部放大圖。 圖7係圖6中之滾子受階緣施壓時之示意圖，圖中凸出部對第一盤部預先迫緊，且由第二盤部在有間隙處受壓形變而對第一盤部再施壓迫緊。 圖8係本發明第二實施例之阻尼式夾頭對應圖5剖視位置所視另一實施例之剖視圖。 圖9係本發明第三實施例之阻尼式夾頭對應圖5剖視位置所視又一實施例之剖視圖。 圖10係圖9於B處之局部放大圖，圖中以複數滾動件在卡掣位置單向帶動阻尼件旋轉之示意圖。 圖11係圖9於B處之另一局部放大圖，圖中以複數滾動件脫離卡掣位置之示意圖。Fig. 1 is a perspective view of the damping chuck according to the first embodiment of the present invention. Fig. 2 is a perspective exploded view of the damping chuck of the first embodiment of the present invention. Figure 3 is a perspective view of the damping element of the first embodiment of the present invention shown at one end with a second disc portion Fig. 4 is a cross-sectional view of Fig. 1 as viewed from the line 4-4. Fig. 5 is a cross-sectional view of Fig. 4 taken along the line 5-5. Figure 6 is a partial enlarged view of Figure 4 at A. Figure 7 is a schematic diagram of the roller in Figure 6 when it is pressed by the step edge. The protruding part in the figure pre-presses the first disc part, and the second disc part is compressed and deformed at the gap to affect the first disc. The Ministry put pressure on it again. FIG. 8 is a cross-sectional view of another embodiment of the damping chuck according to the second embodiment of the present invention corresponding to the cross-sectional position of FIG. 5. FIG. 9 is a cross-sectional view of another embodiment of the damping chuck according to the third embodiment of the present invention corresponding to the cross-sectional position of FIG. 5. Fig. 10 is a partial enlarged view of Fig. 9 at B. In the figure, the damping element is driven to rotate in one direction by a plurality of rolling elements in the latching position. Fig. 11 is another partial enlarged view of Fig. 9 at B, in which a schematic diagram of a plurality of rolling elements disengaging from the detent position.

100:阻尼式夾頭 100: Damping chuck

10:連接軸 10: connecting shaft

11:端部 11: end

12:第一盤部 12: The first set

13:刀柄 13: Knife handle

20:夾具 20: Fixture

21:爪座 21: Claw seat

211:導槽 211: Guide Groove

22:螺桿 22: Screw

221:座部 221: Seat

222:滑溝 222: Slippery Ditch

23:夾爪 23: Gripper

30:阻尼件 30: Damping parts

31:軸孔 31: Shaft hole

32:第二盤部 32: The second part

33:凸出部 33: Protruding part

34:棘齒部 34: Ratchet

40:滾子 40: Roller

50:樞轉套 50: pivot sleeve

51:後套 51: back cover

512:容槽 512: Tolerance

52:前套 52: front set

60:單向機構 60: One-way mechanism

61:掣動塊 61: Move block

62:彈性件 62: Elastic

63:限位片 63: limit piece

Claims (14)

一種具高夾緊力之阻尼式夾頭，其包含： 一連接軸，其具有一端部，且鄰近該端部具有一沿徑向環設的第一盤部； 一夾具，接設於該端部，可相對該連接軸旋動且呈軸向位移，用以夾緊刀具； 一阻尼件，其具有一軸孔而可轉動地套設於該連接軸，該阻尼件於一端具有一沿徑向環設的第二盤部，該阻尼件以有該第二盤部的一端抵接該第一盤部，且在該第一盤部和該第二盤部間存在一間隙； 複數滾子，設在該第二盤部異於該第一盤部的一側； 一樞轉套，其在異於該第二盤部的一側承靠在該複數滾子並可轉動地設在該連接軸的外側且連結該夾具，該樞轉套向一旋緊方向轉動而連動該夾具夾緊所述刀具時，該第二盤部在前述抵接處對該第一盤部預先迫緊而形成一摩擦阻力，且該複數滾子在該樞轉套再朝該旋緊方向轉動時對該第二盤部繼續施壓，使該第二盤部在有該間隙處受壓形變而二次迫緊該第一盤部並提高該摩擦阻力；以及 一單向機構，其單向驅動地連結在該樞轉套和該阻尼件之間，該樞轉套僅在朝相反該旋緊方向之一旋鬆方向轉動時，以該單向機構帶動該阻尼件相對該連接軸轉動，以先後釋放所述二次迫緊和預先迫緊的力量至該摩擦阻力解除。A damping chuck with high clamping force, which includes: A connecting shaft, which has one end, and adjacent to the end has a first disk portion circumferentially arranged in the radial direction; A clamp, connected to the end, can be rotated relative to the connecting shaft and axially displaced, for clamping the tool; A damping member has a shaft hole and is rotatably sleeved on the connecting shaft, the damping member has a second disk portion circumferentially arranged along the radial direction at one end, and the damping member is abutted by one end of the second disk portion Connected to the first disk portion, and there is a gap between the first disk portion and the second disk portion; Plural rollers are arranged on the side of the second disc part different from the first disc part; A pivot sleeve, which bears against the plurality of rollers on a side different from the second disc portion and is rotatably arranged on the outside of the connecting shaft and connects the clamp, the pivot sleeve rotates in a tightening direction When the tool is clamped in conjunction with the clamp, the second disk portion pre-tensions the first disk portion at the aforementioned abutment to form a frictional resistance, and the plurality of rollers are rotated toward the pivot sleeve on the pivot sleeve. When rotating in the tight direction, continue to press on the second disk portion, so that the second disk portion is compressed and deformed where there is the gap, thereby tightening the first disk portion a second time and increasing the frictional resistance; and A one-way mechanism, which is unidirectionally drivingly connected between the pivot sleeve and the damping member. The pivot sleeve only rotates in one of the directions opposite to the tightening direction to drive the one-way mechanism. The damping member rotates relative to the connecting shaft to successively release the forces of the secondary compression and the pre-compression until the frictional resistance is relieved. 如請求項1所述之具高夾緊力之阻尼式夾頭，其中，該樞轉套包括一後套和一前套所接合組成，該後套對應該連接軸的位置而設，該前套對應該夾具的位置而設，該單向機構設於該後套。The damping chuck with high clamping force according to claim 1, wherein the pivot sleeve includes a rear sleeve and a front sleeve joined together, the rear sleeve is set corresponding to the position of the connecting shaft, and the front The sleeve is set corresponding to the position of the clamp, and the one-way mechanism is set on the rear sleeve. 如請求項2所述之具高夾緊力之阻尼式夾頭，其中，該後套內部呈階級狀而形成一階緣，所述樞轉套以該階緣承靠在該複數滾子，且該夾具夾緊所述刀具時，以該階緣對所承靠的該複數滾子施壓而迫緊該第二盤部於該第一盤部。The damping chuck with high clamping force according to claim 2, wherein the inside of the back sleeve is stepped to form a step edge, and the pivot sleeve is supported against the plurality of rollers by the step edge, And when the clamp clamps the tool, the step edge is used to press the plurality of rollers supported by it to press the second disc part against the first disc part. 如請求項3所述之具高夾緊力之阻尼式夾頭，其中，該阻尼件在有該第二盤部的一端有一凸出部抵接於該第一盤部，且在該第一盤部和第二盤部間懸空以形成該間隙。The damping chuck with high clamping force according to claim 3, wherein the damping member has a protruding part at one end of the second disc part abutting against the first disc part, and The disc part and the second disc part are suspended to form the gap. 如請求項3所述之具高夾緊力之阻尼式夾頭，其中，該阻尼件具有一沿其環周而設之棘齒部，該單向機構包括一掣動塊和一彈性件，該掣動塊的位置對應該棘齒部而可樞擺地設在該後套之一容槽中，該彈性件也在該容槽內且位在該掣動塊旁，該彈性件常態壓掣該掣動塊單向卡掣於該棘齒部，而僅在該後套朝該旋鬆方向轉動時帶動該阻尼件轉動。The damping chuck with high clamping force according to claim 3, wherein the damping member has a ratchet portion along its circumference, and the one-way mechanism includes a detent block and an elastic member, The position of the detent block corresponds to the ratchet part and is pivotally arranged in a groove of the rear sleeve. The elastic piece is also in the groove and is located beside the detent block. The elastic piece is normally compressed. The detent block is unidirectionally detented on the ratchet part, and the damping part is driven to rotate only when the back sleeve rotates in the loosening direction. 如請求項5所述之具高夾緊力之阻尼式夾頭，其中，該單向機構包括一限位片，該限位片設在該後套且蓋設在該容槽，以限制該掣動塊和該彈性件於該容槽中。The damping chuck with high clamping force according to claim 5, wherein the one-way mechanism includes a stopper, and the stopper is arranged on the back cover and covers the accommodating groove to restrict the The detent block and the elastic piece are in the containing groove. 如請求項5所述之具高夾緊力之阻尼式夾頭，其中，所述彈性件為彈片或壓縮彈簧。The damping chuck with high clamping force according to claim 5, wherein the elastic member is an elastic piece or a compression spring. 如請求項3所述之具高夾緊力之阻尼式夾頭，其中，該單向機構包括一滾動件，該滾動件可轉動地設在該後套之一卡槽中，僅在該後套朝該旋鬆方向轉動時，該滾動件在該卡槽中被定位於一卡掣位置，以卡掣於該阻尼件之環周而帶動該阻尼件單向轉動。The damping chuck with high clamping force according to claim 3, wherein the one-way mechanism includes a rolling element, and the rolling element is rotatably arranged in a groove of the rear sleeve, and only in the rear When the sleeve rotates in the loosening direction, the rolling element is positioned at a latching position in the latching groove to latch on the circumference of the damping element to drive the damping element to rotate in one direction. 如請求項8所述之具高夾緊力之阻尼式夾頭，其中，該卡槽順著該後套的轉動方向由深而淺且在相異的兩端形成一深端和一淺端，該後套朝該旋鬆方向轉動時，該滾動件位在該淺端且被定位於該卡掣位置，以卡掣於該阻尼件之環周；另該後套朝該旋緊方向轉動時，該滾動件移向該深端且脫離該卡掣位置而可自由轉動。The damping chuck with high clamping force as described in claim 8, wherein the groove is from deep to shallow along the rotation direction of the back sleeve and forms a deep end and a shallow end at two different ends , When the back sleeve rotates in the unscrewing direction, the rolling element is located at the shallow end and is positioned at the latching position to latch on the circumference of the damping element; and the back sleeve rotates in the tightening direction At this time, the rolling element moves to the deep end and leaves the latching position to rotate freely. 如請求項9所述之具高夾緊力之阻尼式夾頭，其中，該單向機構更包括一彈性件，該彈性件也在該卡槽中且位在該滾動件旁，該滾動件被該彈性件常態推向該淺端。The damping chuck with high clamping force according to claim 9, wherein the one-way mechanism further includes an elastic member, the elastic member is also in the slot and located beside the rolling member, the rolling member Normally pushed to the shallow end by the elastic member. 如請求項10所述之具高夾緊力之阻尼式夾頭，其中，所述彈性件為彈片或壓縮彈簧。The damping chuck with high clamping force according to claim 10, wherein the elastic member is an elastic piece or a compression spring. 如請求項9所述之具高夾緊力之阻尼式夾頭，其中，該單向機構更包括一保持器以及一環圈件，所述滾動件的數量為複數，該保持器呈環形而被定位在該環圈件中，該複數滾動件環設於該保持器，該環圈件固接於該後套而與其同動，於該環圈件的內周具有複數所述卡槽，各該卡槽係對應一前述滾動件而設。The damping chuck with high clamping force according to claim 9, wherein the one-way mechanism further includes a retainer and a ring member, the number of the rolling members is plural, and the retainer is ring-shaped. Positioned in the ring member, the plurality of rolling members are ring-mounted on the retainer, the ring member is fixed to the back sleeve to move with it, and the inner circumference of the ring member is provided with a plurality of said locking grooves, each The slot is corresponding to one of the aforementioned rolling elements. 如請求項3所述之具高夾緊力之阻尼式夾頭，其中，該夾具包括一爪座、一螺桿和複數夾爪，該爪座於該前套中同軸連結該後套，該爪座設複數導槽，該螺桿在該爪座內可轉動地接設在該端部，且該螺桿的一端有一座部具複數滑溝，各該夾爪以一端設在對應的一前述滑溝，且各該夾爪位在對應的一前述導槽，該後套轉動而經該爪座和該複數夾爪帶動該螺桿相對該連接軸呈軸向位移，該複數夾爪隨該螺桿之軸向位移而擴張或內縮。The damping chuck with high clamping force according to claim 3, wherein the clamp includes a claw seat, a screw rod and a plurality of clamping claws, the claw seat is coaxially connected to the back sleeve in the front sleeve, and the claw The seat is provided with a plurality of guide grooves, the screw is rotatably connected to the end in the claw seat, and one end of the screw has a seat with a plurality of sliding grooves, and one end of each of the clamping jaws is set in a corresponding one of the aforementioned sliding grooves , And each of the clamping jaws is located in a corresponding one of the aforementioned guide grooves, the back sleeve rotates and drives the screw rod to move axially relative to the connecting shaft through the jaw seat and the plurality of clamping jaws, and the plurality of clamping jaws follow the shaft of the screw Expansion or contraction toward displacement. 如請求項1所述之具高夾緊力之阻尼式夾頭，其中，該連接軸連接一刀柄，而可接合於工具機之拉刀機構。The damping chuck with high clamping force according to claim 1, wherein the connecting shaft is connected to a tool holder and can be connected to the broach mechanism of the machine tool.
TW108129320A 2019-08-16 2019-08-16 High strength damping chuck TWI723499B (en)

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CN112388342A (en) 2021-02-23
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