TWI839509B - Bar material feeding apparatus - Google Patents

Bar material feeding apparatus Download PDF

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Publication number
TWI839509B
TWI839509B TW109113829A TW109113829A TWI839509B TW I839509 B TWI839509 B TW I839509B TW 109113829 A TW109113829 A TW 109113829A TW 109113829 A TW109113829 A TW 109113829A TW I839509 B TWI839509 B TW I839509B
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Taiwan
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rod
bar
finger
holding
rear end
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TW109113829A
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Chinese (zh)
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TW202106438A (en
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廣澤清
曽根栄二
中里幸司
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日商育良精機股份有限公司
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B13/00Arrangements for automatically conveying or chucking or guiding stock
    • B23B13/02Arrangements for automatically conveying or chucking or guiding stock for turning-machines with a single working-spindle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B31/00Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02Chucks
    • B23B31/10Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/117Retention by friction only, e.g. using springs, resilient sleeves, tapers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Abstract

The present invention relates to a bar material feeding apparatus for a bar material supply machine, which rotatably supports a bar material rotating during a cutting process. The bar material feeding apparatus includes a bar holding member for holding the rear end of the bar material, a rod portion that advances when feeding the bar material, and a connecting member disposed between the bar holding member and the rod portion such that the bar holding member is supported in a rotatable manner. The connecting member includes a rotating part integrally supporting the bar holding member, a fixed part connected to the rod portion, and a rotating means connecting the rotating part and the fixed part in a manner that allows the two parts to rotate relatively. The bar holding member has a holding part with a hollow section into which the rear end of the bar material can be inserted, and a finger-shaped member rotatably received in the holding part and holding the rear end of the bar material. The finger-shaped member has a tubular elastic body, and a tubular metal body covering the tubular elastic body.

Description

棒材饋送裝置 Bar feeding device

本發明係關於棒材供給機的棒材饋送裝置,更詳言之,係關於配置在棒材供給機的棒材饋送軸線上之棒材饋送裝置的改良。 The present invention relates to a bar feeding device of a bar feeding machine, and more specifically, to an improvement of a bar feeding device arranged on a bar feeding axis of a bar feeding machine.

已知有構成為對於NC車床等之自動車床自動地供給較長條形的棒材之棒材供給機。此種棒材供給機係具備對自動車床供給棒材之棒材供給手段,棒材供給手段係具備:將棒材朝向自動車床饋送之進給桿等棒材饋送裝置、以及由驅動馬達及鏈條等所構成之棒材饋送裝置用的驅動裝置。 It is known that there is a bar feeding machine configured to automatically feed long bars to an automatic lathe such as an NC lathe. This bar feeding machine is equipped with a bar feeding means for feeding bars to the automatic lathe, and the bar feeding means is equipped with: a bar feeding device such as a feed rod for feeding the bars toward the automatic lathe, and a driving device for the bar feeding device composed of a driving motor and a chain.

該驅動裝置一般係對棒材饋送裝置提供前進方向的驅動力或推力(thrust force),藉此,棒材饋送裝置係按照例如自動車床的製品加工程序對自動車床供給棒材。 The driving device generally provides a driving force or thrust force in the forward direction to the bar feeding device, whereby the bar feeding device supplies bars to the automatic lathe according to the product processing procedure of the automatic lathe, for example.

棒材供給機的棒材饋送裝置一般係具備把持作為工件或素材之棒材的後端部之中空圓筒狀的指形夾具(finger chuck)。該指形夾具係可轉動地安裝於棒材饋送裝置的頭端部或前端部。並且,棒材的後端部係插入到指形夾具的中空部內而由該指形夾具把持住棒材。 The bar feeding device of the bar feeding machine generally has a hollow cylindrical finger chuck for holding the rear end of the bar as a workpiece or material. The finger chuck is rotatably mounted on the head end or front end of the bar feeding device. In addition, the rear end of the bar is inserted into the hollow part of the finger chuck and the bar is held by the finger chuck.

圖13係顯示此種棒材饋送裝置的構成之概略側面圖。構成棒材饋送裝置之進給桿1係具有:配置於棒材供給機的棒材饋送軸線X-X上之桿部 2、以及安裝於該桿部2的前端部之指形夾具4。 FIG. 13 is a schematic side view showing the structure of such a bar feeding device. The feed rod 1 constituting the bar feeding device comprises: a rod 2 disposed on the bar feeding axis X-X of the bar feeding machine, and a finger clamp 4 mounted on the front end of the rod 2.

設於進給桿1的後端部之葉片部3係耦合於構成棒材饋送裝置用的驅動裝置之環繞鏈條C(亦可為皮帶及皮帶輪等)。另外,在指形夾具4與桿部2之間裝有稱為夾具接頭之可轉動的連結構件10。 The blade portion 3 provided at the rear end of the feed rod 1 is coupled to the surrounding chain C (which may also be a belt and a pulley, etc.) constituting the driving device for the rod feeding device. In addition, a rotatable connecting member 10 called a clamp joint is installed between the finger clamp 4 and the rod 2.

棒材W的後端部係嵌入指形夾具4內,藉此由指形夾具4把持住。由NC自動車床的主軸的筒夾夾頭夾住的棒材W高速轉動時,連結構件10係將指形夾具4支持成可轉動,亦即,指形夾具4可隨著棒材W的轉動而轉動。 The rear end of the rod W is embedded in the finger clamp 4, thereby being held by the finger clamp 4. When the rod W clamped by the collet chuck of the main spindle of the NC automatic lathe rotates at high speed, the connecting structure 10 supports the finger clamp 4 to be rotatable, that is, the finger clamp 4 can rotate with the rotation of the rod W.

可安裝於進給桿1之指形夾具4,一般係如日本實開昭57-91502號公報(專利文獻1)所示,具有聚氨酯樹脂等之圓筒狀彈性體(該文獻中符號為30)。該彈性體30係彈性地把持插入指形夾具4內的棒材W的後端部。 The finger-shaped clamp 4 that can be mounted on the feed rod 1 is generally a cylindrical elastic body (symbol 30 in the document) made of polyurethane resin, etc., as shown in Japanese Utility Model Publication No. 57-91502 (Patent Document 1). The elastic body 30 elastically holds the rear end of the rod W inserted into the finger-shaped clamp 4.

本案發明人觀察得知,棒材把持構件(指形夾具)中的聚氨酯樹脂等之圓筒狀彈性體會因棒材W插入而撐開變形,且在棒材轉動時,會有棒材把持構件(指形夾具)被「帶著轉」之情形,此情況下,圓筒狀彈性體係承受扭轉負荷,而有該圓筒狀彈性體受到不希望有的損傷之可能性。 The inventor of this case observed that the cylindrical elastic body of polyurethane resin or the like in the rod holding member (finger clamp) will be stretched and deformed due to the insertion of the rod W, and when the rod rotates, the rod holding member (finger clamp) may be "carried along". In this case, the cylindrical elastic body is subjected to torsional load, and there is a possibility that the cylindrical elastic body will suffer undesirable damage.

另一方面,本案發明人觀察得知,相對於圓筒狀彈性體與棒材把持構件(指形夾具)的本體(通常為金屬製)之間的摩擦滑動阻力,設成包覆圓筒狀彈性體之圓筒狀金屬罩與棒材把持構件(指形夾具)的本體(通常為金屬製)之間的摩擦滑動阻力,可藉由併用適量的潤滑油等而實現同等程度的低阻力。 On the other hand, the inventor of this case has observed that, compared with the frictional sliding resistance between the cylindrical elastic body and the main body (usually made of metal) of the rod holding member (finger-shaped clamp), the frictional sliding resistance between the cylindrical metal cover covering the cylindrical elastic body and the main body (usually made of metal) of the rod holding member (finger-shaped clamp) can achieve the same degree of low resistance by using an appropriate amount of lubricating oil, etc.

本發明係基於以上的背景而開發完成者。本發明的目的在於提供 一種棒材饋送裝置,可有效地抑制棒材把持構件(指形夾具)中的聚氨酯樹脂等圓筒狀彈性體發生變形、損傷等情形。 The present invention is developed based on the above background. The purpose of the present invention is to provide a rod feeding device that can effectively prevent deformation and damage of a cylindrical elastic body such as polyurethane resin in a rod holding member (finger clamp).

本發明係一種棒材供給機的棒材饋送裝置,係可轉動地支持在切削加工時會轉動的棒材,該棒材饋送裝置係具備:把持棒材的後端部之棒材把持構件、在饋送棒材時前進之桿部、以及隔設於前述棒材把持構件與桿部之間,將前述棒材把持構件支持成可轉動之連結構件;其中,前述連結構件係具有:一體地支持前述棒材把持構件之轉動部、連結至前述桿部之固定部、以及將前述轉動部與前述固定部連結成可相對轉動之轉動手段;前述棒材把持構件係具有:把持部及指形構件,該把持部係具有可接受棒材的後端部的插入之中空部,該指形構件係可轉動地收容於該把持部內且把持前述棒材的後端部;前述指形構件係具有:筒狀的彈性體、以及包覆該筒狀的彈性體之筒狀的金屬體。 The present invention is a bar feeding device of a bar feeding machine, which is rotatably supported for a bar that rotates during cutting. The bar feeding device comprises: a bar holding member for holding the rear end of the bar, a rod that advances when feeding the bar, and a connecting member disposed between the bar holding member and the rod to support the bar holding member so that it can rotate; wherein the connecting member comprises: a rotating portion that integrally supports the bar holding member, a connecting member The fixing part connected to the rod part and the rotating means connecting the rotating part and the fixing part so as to be relatively rotatable; the rod holding member comprises: a holding part and a finger-shaped member, the holding part comprises a hollow part for receiving the rear end of the rod, the finger-shaped member is rotatably received in the holding part and holds the rear end of the rod; the finger-shaped member comprises: a cylindrical elastic body and a cylindrical metal body covering the cylindrical elastic body.

根據本發明,由於筒狀的彈性體係由筒狀的金屬體加以包覆,因此可有效地抑制筒狀的彈性體發生損傷之情形。另一方面,確認了包覆筒狀的彈性體之筒狀的金屬體與棒材把持構件的把持部之間的摩擦滑動阻力,藉由併用適量的潤滑油等,可維持在充分低的阻力。藉此,確認了藉由伴隨該兩者間的摩擦滑動之轉動、及連結構件的轉動手段所容許的轉動,即使在棒材高速轉動時,也可穩定地支持及饋送該棒材。 According to the present invention, since the cylindrical elastic body is covered by the cylindrical metal body, damage to the cylindrical elastic body can be effectively suppressed. On the other hand, it is confirmed that the frictional sliding resistance between the cylindrical metal body covering the cylindrical elastic body and the holding portion of the rod holding member can be maintained at a sufficiently low resistance by using an appropriate amount of lubricating oil, etc. Thus, it is confirmed that the rod can be stably supported and fed even when the rod rotates at a high speed by the rotation accompanied by the frictional sliding between the two and the rotation allowed by the rotation means of the connecting member.

較佳係前述筒狀的彈性體為圓筒狀的彈性體,前述筒狀的金屬體為圓筒狀的金屬體。 Preferably, the aforementioned tubular elastic body is a cylindrical elastic body, and the aforementioned tubular metal body is a cylindrical metal body.

另外,本發明係一種棒材供給機的棒材饋送裝置,係可轉動地支持在切削加工時會轉動的棒材,該棒材饋送裝置具備:把持棒材的後端部之棒材 把持構件、在饋送棒材時前進之桿部、以及隔設於前述棒材把持構件與桿部之間,將前述棒材把持構件支持成可轉動之連結構件;其中,前述連結構件係具有:一體地支持前述棒材把持構件之轉動部、連結至前述桿部之固定部、以及將前述轉動部與前述固定部連結成可相對轉動之轉動手段;前述棒材把持構件係具有:把持部及指形構件,該把持部係具有可接受棒材的後端部的插入之中空部,該指形構件係可轉動地收容於該把持部內且把持前述棒材的後端部;前述指形構件係具有筒狀的金屬體;前述筒狀的金屬體係設有:沿著與軸線方向垂直之方向貫通之貫通孔、以及從該貫通孔延伸到軸線方向的前方端之狹縫孔。 In addition, the present invention is a bar feeding device of a bar feeding machine, which rotatably supports a bar that rotates during cutting, and the bar feeding device comprises: a bar holding member that holds the rear end of the bar, a rod that advances when feeding the bar, and a connecting member that is arranged between the bar holding member and the rod and supports the bar holding member so that it can rotate; wherein the connecting member comprises: a rotating portion that integrally supports the bar holding member, a fixing portion that is connected to the rod, and a connecting member that connects the rod to the rod. The rotating part is connected to the aforementioned fixed part to form a rotating means that can rotate relatively; the aforementioned rod holding member comprises: a holding part and a finger-shaped member, the holding part has a hollow part that can accept the insertion of the rear end of the rod, and the finger-shaped member is rotatably accommodated in the holding part and holds the rear end of the aforementioned rod; the aforementioned finger-shaped member has a cylindrical metal body; the aforementioned cylindrical metal body is provided with: a through hole that penetrates in a direction perpendicular to the axial direction, and a slit hole extending from the through hole to the front end in the axial direction.

根據本發明,由於為不需要筒狀的彈性體之構成,因此根本不會有如上述的彈性體會受到損傷之問題。另一方面,確認了筒狀的金屬體由於狹縫孔之存在而可彈性變形,因此可彈性地而穩定地把持棒材的後端部。而且,確認了筒狀的金屬體與棒材把持構件的把持部之間的摩擦滑動阻力,藉由併用適量的潤滑油等,可維持在充分低的阻力。藉此,確認了藉由伴隨該兩者間的摩擦滑動之轉動、及連結構件的轉動手段所容許的轉動,即使在棒材高速轉動時,也可穩定地支持及饋送該棒材。 According to the present invention, since the structure does not require a cylindrical elastic body, there is no problem that the elastic body mentioned above will be damaged. On the other hand, it is confirmed that the cylindrical metal body can be elastically deformed due to the presence of the slit hole, so the rear end of the rod can be elastically and stably held. In addition, it is confirmed that the frictional sliding resistance between the cylindrical metal body and the holding part of the rod holding member can be maintained at a sufficiently low resistance by using an appropriate amount of lubricating oil. Thus, it is confirmed that the rotation accompanied by the frictional sliding between the two and the rotation allowed by the rotation means of the connecting member can stably support and feed the rod even when the rod rotates at high speed.

較佳係前述筒狀的金屬體為圓筒狀的金屬體。並且,較佳係狹縫孔為一對相向的狹縫孔。或者,較佳係狹縫孔為沿周方向均等分佈之三個以上的狹縫孔(可稱為三分割、四分割、...等)。狹縫孔一般係沿著軸線方向之直線狀,但亦可相對於軸線方向斜向延伸。 Preferably, the aforementioned cylindrical metal body is a cylindrical metal body. Also, preferably, the slit holes are a pair of slit holes facing each other. Alternatively, preferably, the slit holes are three or more slit holes evenly distributed along the circumferential direction (which can be called three-partition, four-partition, etc.). The slit holes are generally straight lines along the axial direction, but can also extend obliquely relative to the axial direction.

另外,本發明係一種棒材供給機的棒材饋送裝置,係可轉動地支持在切削加工時會轉動的第一棒材或第二棒材,該棒材饋送裝置係具備:把持具有第一直徑之第一棒材或具有與前述第一直徑不同的第二直徑之第二棒材的後 端部之棒材把持構件、在饋送棒材時前進之桿部、以及隔設於前述棒材把持構件與桿部之間,將前述棒材把持構件支持成可轉動之連結構件;其中,前述連結構件係具有:一體地支持前述棒材把持構件之轉動部、連結至前述桿部之固定部、以及將前述轉動部與前述固定部連結成可相對轉動之轉動手段;前述棒材把持構件係具有:把持部、第一指形構件及第二指形構件,該把持部係具有可接受第一棒材或第二棒材的後端部的插入之中空部,該第一指形構件係可轉動地收容於該把持部內且可把持前述第一棒材的後端部,該第二指形構件係可轉動地收容於該把持部內且可把持前述第二棒材的後端部;前述第一指形構件及前述第二指形構件各自具有筒狀的金屬體,各筒狀的金屬體係設有:沿著與軸線方向垂直之方向貫通之貫通孔、以及從該貫通孔延伸到軸線方向的前方端之狹縫孔。 In addition, the present invention is a bar feeding device of a bar feeding machine, which rotatably supports a first bar or a second bar that rotates during cutting, and the bar feeding device comprises: a bar holding member that holds the rear end of the first bar having a first diameter or the second bar having a second diameter different from the first diameter, a rod that advances when feeding the bar, and a connecting member that is disposed between the bar holding member and the rod and supports the bar holding member so that it can rotate; wherein the connecting member comprises: a rotating portion that integrally supports the bar holding member, a fixed portion that is connected to the rod, and a connecting member that connects the rotating portion and the fixed portion so that they can rotate relative to each other. The rotating means for rotation; the aforementioned rod holding member comprises: a holding portion, a first finger-shaped member and a second finger-shaped member, the holding portion has a hollow portion that can accept the insertion of the rear end of the first rod or the second rod, the first finger-shaped member is rotatably accommodated in the holding portion and can hold the rear end of the aforementioned first rod, and the second finger-shaped member is rotatably accommodated in the holding portion and can hold the rear end of the aforementioned second rod; the aforementioned first finger-shaped member and the aforementioned second finger-shaped member each have a cylindrical metal body, and each cylindrical metal body is provided with: a through hole that penetrates in a direction perpendicular to the axial direction, and a slit hole extending from the through hole to the front end in the axial direction.

根據本發明,由於為不需要筒狀的彈性體之構成,因此根本不會有如上述的彈性體會受到損傷之問題。另一方面,確認了各筒狀的金屬體由於狹縫孔之存在而可彈性變形,因此可彈性地而穩定地把持第一棒材或第二棒材的後端部。而且,確認了各筒狀的金屬體與棒材把持構件的把持部之間的摩擦滑動阻力,藉由併用適量的潤滑油等,可維持在充分低的阻力。藉此,確認了藉由伴隨該兩者間的摩擦滑動之轉動、及連結構件的轉動手段所容許的轉動,即使在第一棒材或第二棒材高速轉動時,也可穩定地支持及饋送該棒材。如上所述,確認了可針對不同直徑的第一棒材及第二棒材選擇性地利用此等指形構件。 According to the present invention, since a cylindrical elastic body is not required, there is no problem that the elastic body mentioned above is damaged. On the other hand, it is confirmed that each cylindrical metal body can be elastically deformed due to the presence of the slit hole, so the rear end of the first rod or the second rod can be elastically and stably grasped. In addition, it is confirmed that the frictional sliding resistance between each cylindrical metal body and the holding portion of the rod holding member can be maintained at a sufficiently low resistance by using an appropriate amount of lubricating oil, etc. In this way, it is confirmed that the first rod or the second rod can be stably supported and fed even when the first rod or the second rod rotates at a high speed by the rotation accompanied by the frictional sliding between the two and the rotation allowed by the rotation means of the connecting member. As described above, it has been confirmed that these finger-shaped members can be selectively utilized for first rods and second rods of different diameters.

另外,本發明係一種棒材供給機的棒材饋送裝置,係可轉動地支持在切削加工時會轉動的第一棒材或第二棒材,該棒材饋送裝置具備:把持具有第一直徑之第一棒材或具有與前述第一直徑不同的第二直徑之第二棒材的後端部之棒材把持構件、在饋送棒材時前進之桿部、以及隔設於前述棒材把持構件與 桿部之間,將前述棒材把持構件支持成可轉動之連結構件;其中,前述連結構件係具有:一體地支持前述棒材把持構件之轉動部、連結至前述桿部之固定部、以及將前述轉動部與前述固定部連結成可相對轉動之轉動手段;前述棒材把持構件係具有:把持部、第一指形構件及第二指形構件,該把持部係具有可接受第一棒材或第二棒材的後端部的插入之中空部,該第一指形構件係可轉動地收容於該把持部內且可把持前述第一棒材的後端部,該第二指形構件係可轉動地收容於該把持部內且可把持前述第二棒材的後端部;前述第一指形構件及前述第二指形構件各自具有:筒狀的彈性體、以及包覆該筒狀的彈性體之筒狀的金屬體。 In addition, the present invention is a bar feeding device of a bar feeding machine, which rotatably supports a first bar or a second bar that rotates during cutting, and the bar feeding device comprises: a bar holding member that holds the rear end of the first bar having a first diameter or the second bar having a second diameter different from the first diameter, a rod that advances when feeding the bar, and a connecting member that is arranged between the bar holding member and the rod and supports the bar holding member so that it can rotate; wherein the connecting member comprises: a rotating portion that integrally supports the bar holding member, a fixing portion that is connected to the rod, and a connecting member that connects the bar holding member to the rod. The aforementioned rotating part and the aforementioned fixed part are connected to form a rotating means that can rotate relatively; the aforementioned bar holding member comprises: a holding part, a first finger-shaped member and a second finger-shaped member, the holding part has a hollow part that can accept the insertion of the rear end of the first bar or the second bar, the first finger-shaped member is rotatably accommodated in the holding part and can hold the rear end of the aforementioned first bar, and the second finger-shaped member is rotatably accommodated in the holding part and can hold the rear end of the aforementioned second bar; the aforementioned first finger-shaped member and the aforementioned second finger-shaped member each comprise: a cylindrical elastic body and a cylindrical metal body covering the cylindrical elastic body.

根據本發明,由於第一指形構件及第二指形構件之各者中,皆以筒狀的金屬體包覆筒狀的彈性體,因此可有效地抑制筒狀的彈性體發生損傷之情形。另一方面,確認了包覆筒狀的彈性體之筒狀的金屬體與棒材把持構件的把持部之間的摩擦滑動阻力,藉由併用適量的潤滑油等,可維持在充分低的阻力。藉此,確認了藉由伴隨該兩者間的摩擦滑動之轉動、及連結構件的轉動手段所容許的轉動,即使在第一棒材或第二棒材高速轉動時,也可穩定地支持及饋送該棒材。如上所述,確認了可針對不同直徑的第一棒材及第二棒材選擇性地利用此等指形構件。 According to the present invention, since the cylindrical elastic body is covered with a cylindrical metal body in each of the first finger-shaped member and the second finger-shaped member, damage to the cylindrical elastic body can be effectively suppressed. On the other hand, it is confirmed that the frictional sliding resistance between the cylindrical metal body covering the cylindrical elastic body and the holding portion of the rod holding member can be maintained at a sufficiently low resistance by using an appropriate amount of lubricating oil, etc. In this way, it is confirmed that the first rod or the second rod can be stably supported and fed even when the first rod or the second rod rotates at a high speed by the rotation accompanied by the frictional sliding between the two and the rotation allowed by the rotation means of the connecting member. As described above, it is confirmed that these finger-shaped members can be selectively used for first rods and second rods of different diameters.

另外,本發明係一種棒材供給機的棒材饋送裝置,係可轉動地支持在切削加工時會轉動的第一棒材或第二棒材,該棒材饋送裝置係具備:把持具有第一直徑之第一棒材或具有與前述第一直徑不同的第二直徑之第二棒材的後端部之棒材把持構件、在饋送棒材時前進之桿部、以及隔設於前述棒材把持構件與桿部之間,將前述棒材把持構件支持成可轉動之連結構件;其中,前述連結構件係具有:一體地支持前述棒材把持構件之轉動部、連結至前述桿部之固定部、 以及將前述轉動部與前述固定部連結成可相對轉動之轉動手段;前述棒材把持構件係具有把持部、第一指形構件及第二指形構件,該把持部係具有可接受第一棒材或第二棒材的後端部的插入之中空部,該第一指形構件係可轉動地收容於該把持部內且可把持前述第一棒材的後端部,該第二指形構件係可轉動地收容於該把持部內且可把持前述第二棒材的後端部;前述第一指形構件及前述第二指形構件中之一者係具有筒狀的金屬體,該筒狀的金屬體係設有:沿著與軸線方向垂直之方向貫通之貫通孔、以及從該貫通孔延伸到軸線方向的前方端之狹縫孔;前述第一指形構件及前述第二指形構件中之另一者係具有:筒狀的彈性體、以及包覆該筒狀的彈性體之筒狀的金屬體。 In addition, the present invention is a bar feeding device of a bar feeding machine, which rotatably supports a first bar or a second bar that rotates during cutting, and the bar feeding device is equipped with: a bar holding member that holds the rear end of a first bar having a first diameter or a second bar having a second diameter different from the first diameter, a rod that advances when feeding the bar, and a connecting member that is arranged between the bar holding member and the rod and supports the bar holding member so that it can rotate; wherein the connecting member has: a rotating part that integrally supports the bar holding member, a fixed part connected to the rod, and a rotating means that connects the rotating part and the fixed part so that they can rotate relative to each other; the bar holding member has a holding part, a first finger, and a rotating part. The first finger-shaped member and the second finger-shaped member, the holding portion has a hollow portion that can accept the insertion of the rear end of the first rod or the second rod, the first finger-shaped member is rotatably accommodated in the holding portion and can hold the rear end of the first rod, and the second finger-shaped member is rotatably accommodated in the holding portion and can hold the rear end of the second rod; one of the first finger-shaped member and the second finger-shaped member has a cylindrical metal body, and the cylindrical metal body is provided with: a through hole passing through in a direction perpendicular to the axial direction, and a slit hole extending from the through hole to the front end in the axial direction; the other of the first finger-shaped member and the second finger-shaped member has: a cylindrical elastic body, and a cylindrical metal body covering the cylindrical elastic body.

根據本發明,由於第一指形構件及第二指形構件中之一者為不需要筒狀的彈性體之構成,因此根本不會有如上述的彈性體會受到損傷之問題。另一方面,確認了該筒狀的金屬體由於狹縫孔之存在而可彈性變形,因此可彈性地而穩定地把持第一棒材及第二棒材的一方的後端部。而且,確認了該筒狀的金屬體與棒材把持構件的把持部之間的摩擦滑動阻力,藉由併用適量的潤滑油等,可維持在充分低的阻力。因此,確認了藉由伴隨該兩者間的摩擦滑動之轉動、及連結構件的轉動手段所容許的轉動,即使在第一棒材及第二棒材的一方高速轉動時,也可穩定地支持及饋送該棒材。另外,由於第一指形構件及第二指形構件中之另一者以筒狀的金屬體包覆筒狀的彈性體,因此可有效地抑制筒狀的彈性體發生損傷之情形。另一方面,確認了包覆筒狀的彈性體之筒狀的金屬體與棒材把持構件的把持部之間的摩擦滑動阻力,藉由併用適量的潤滑油等,可維持在充分低的阻力。因此,確認了藉由伴隨該兩者間的摩擦滑動之轉動、及連結構件的轉動手段所容許的轉動,即使在第一棒材或第二棒材中之另一者高速轉動時,也可 穩定地支持及饋送該棒材。如上所述,確認了可針對不同直徑的第一棒材及第二棒材選擇性地利用此等指形構件。 According to the present invention, since one of the first finger-shaped member and the second finger-shaped member is composed of an elastic body that does not require a cylindrical shape, there is no problem that the elastic body described above is damaged. On the other hand, it was confirmed that the cylindrical metal body can be elastically deformed due to the presence of the slit hole, so that the rear end of one of the first rod and the second rod can be elastically and stably grasped. Moreover, it was confirmed that the frictional sliding resistance between the cylindrical metal body and the grasping portion of the rod grasping member can be maintained at a sufficiently low resistance by using an appropriate amount of lubricating oil, etc. Therefore, it was confirmed that the rotation accompanied by the frictional sliding between the two and the rotation allowed by the rotating means of the connecting member can stably support and feed the rod even when one of the first rod and the second rod rotates at a high speed. In addition, since the other of the first finger-shaped member and the second finger-shaped member covers the cylindrical elastic body with a cylindrical metal body, the situation where the cylindrical elastic body is damaged can be effectively suppressed. On the other hand, it was confirmed that the frictional sliding resistance between the cylindrical metal body covering the cylindrical elastic body and the holding portion of the rod holding member can be maintained at a sufficiently low resistance by using an appropriate amount of lubricating oil, etc. Therefore, it was confirmed that the other of the first rod or the second rod can be stably supported and fed even when the other of the first rod or the second rod rotates at a high speed by the rotation accompanied by the frictional sliding between the two and the rotation allowed by the rotation means of the connecting member. As described above, it was confirmed that these finger-shaped members can be selectively used for the first rod and the second rod of different diameters.

根據本發明的一態樣,由於筒狀的彈性體係由筒狀的金屬體加以包覆,因此可有效地抑制筒狀的彈性體發生損傷之情形。另一方面,確認了包覆筒狀的彈性體之筒狀的金屬體與棒材把持構件的把持部之間的摩擦滑動阻力,藉由併用適量的潤滑油等,可維持在充分低的阻力。因此,確認了藉由伴隨該兩者間的摩擦滑動之轉動、及連結構件的轉動手段所容許的轉動,即使在棒材高速轉動時,也可穩定地支持及饋送該棒材。 According to one aspect of the present invention, since the cylindrical elastic body is covered by a cylindrical metal body, damage to the cylindrical elastic body can be effectively suppressed. On the other hand, it is confirmed that the frictional sliding resistance between the cylindrical metal body covering the cylindrical elastic body and the holding portion of the rod holding member can be maintained at a sufficiently low resistance by using an appropriate amount of lubricating oil, etc. Therefore, it is confirmed that the rod can be stably supported and fed even when the rod rotates at a high speed by the rotation accompanied by the frictional sliding between the two and the rotation allowed by the rotation means of the connecting member.

根據本發明的另一態樣,由於為不需要筒狀的彈性體之構成,因此根本不會有如上述的彈性體會受到損傷之問題。另一方面,確認了筒狀的金屬體由於狹縫孔之存在而可彈性變形,因此可彈性地而穩定地把持棒材的後端部。而且,確認了筒狀的金屬體與棒材把持構件的把持部之間的摩擦滑動阻力,藉由併用適量的潤滑油等,可維持在充分低的阻力。因此,確認了藉由伴隨該兩者間的摩擦滑動之轉動、及連結構件的轉動手段所容許的轉動,即使在棒材高速轉動時,也可穩定地支持及饋送該棒材。 According to another aspect of the present invention, since the structure does not require a cylindrical elastic body, there is no problem that the elastic body mentioned above will be damaged. On the other hand, it is confirmed that the cylindrical metal body can be elastically deformed due to the presence of the slit hole, so the rear end of the rod can be elastically and stably held. In addition, it is confirmed that the frictional sliding resistance between the cylindrical metal body and the holding portion of the rod holding member can be maintained at a sufficiently low resistance by using an appropriate amount of lubricating oil. Therefore, it is confirmed that the rotation accompanied by the frictional sliding between the two and the rotation allowed by the rotation means of the connecting member can stably support and feed the rod even when the rod rotates at high speed.

根據本發明的又一態樣,由於為不需要筒狀的彈性體之構成,因此根本不會有如上述的彈性體會受到損傷之問題。另一方面,確認了各筒狀的金屬體由於狹縫孔之存在而可彈性變形,因此可彈性地而穩定地把持第一棒材或第二棒材的後端部。而且,確認了各筒狀的金屬體與棒材把持構件的把持部之間的摩擦滑動阻力,藉由併用適量的潤滑油等,可維持在充分低的阻力。因此,確認了藉由伴隨該兩者間的摩擦滑動之轉動、及連結構件的轉動手段所容許的轉 動,即使在第一棒材或第二棒材高速轉動時,也可穩定地支持及饋送該棒材。如上所述,確認了可針對不同直徑的第一棒材及第二棒材選擇性地利用此等指形構件。 According to another aspect of the present invention, since the structure does not require a cylindrical elastic body, there is no problem that the elastic body described above is damaged. On the other hand, it was confirmed that each cylindrical metal body can be elastically deformed due to the presence of the slit hole, so that the rear end of the first rod or the second rod can be elastically and stably grasped. In addition, it was confirmed that the frictional sliding resistance between each cylindrical metal body and the holding portion of the rod holding member can be maintained at a sufficiently low resistance by using an appropriate amount of lubricating oil. Therefore, it was confirmed that the first rod or the second rod can be stably supported and fed even when the first rod or the second rod rotates at a high speed by the rotation accompanied by the frictional sliding between the two and the rotation allowed by the rotation means of the connecting member. As described above, it has been confirmed that these finger-shaped members can be selectively utilized for first rods and second rods of different diameters.

根據本發明的再一態樣,由於第一指形構件及第二指形構件之各者中,皆以筒狀的金屬體包覆筒狀的彈性體,因此可有效地抑制筒狀的彈性體發生損傷之情形。另一方面,確認了包覆筒狀的彈性體之筒狀的金屬體與棒材把持構件的把持部之間的摩擦滑動阻力,藉由併用適量的潤滑油等,可維持在充分低的阻力。因此,確認了藉由伴隨該兩者間的摩擦滑動之轉動、及連結構件的轉動手段所容許的轉動,即使在第一棒材或第二棒材高速轉動時,也可穩定地支持及饋送該棒材。如上所述,確認了可針對不同直徑的第一棒材及第二棒材選擇性地利用此等指形構件。 According to another aspect of the present invention, since the cylindrical elastic body is covered with a cylindrical metal body in each of the first finger-shaped member and the second finger-shaped member, damage to the cylindrical elastic body can be effectively suppressed. On the other hand, it is confirmed that the frictional sliding resistance between the cylindrical metal body covering the cylindrical elastic body and the holding portion of the rod holding member can be maintained at a sufficiently low resistance by using an appropriate amount of lubricating oil, etc. Therefore, it is confirmed that the first rod or the second rod can be stably supported and fed even when the first rod or the second rod rotates at a high speed by the rotation accompanied by the frictional sliding between the two and the rotation allowed by the rotation means of the connecting member. As described above, it is confirmed that these finger-shaped members can be selectively used for first rods and second rods of different diameters.

根據本發明的更一態樣,由於第一指形構件及第二指形構件中之一者為不需要筒狀的彈性體之構成,因此根本不會有如上述的彈性體會受到損傷之問題。另一方面,確認了該筒狀的金屬體由於狹縫孔之存在而可彈性變形,因此可彈性地而穩定地把持第一棒材及第二棒材中之一者的後端部。而且,確認了該筒狀的金屬體與棒材把持構件的把持部之間的摩擦滑動阻力,藉由併用適量的潤滑油等,可維持在充分低的阻力。因此,確認了藉由伴隨該兩者間的摩擦滑動之轉動、及連結構件的轉動手段所容許的轉動,即使在第一棒材及第二棒材中之一者高速轉動時,也可穩定地支持及饋送該棒材。另外,由於第一指形構件及第二指形構件中之另一者以筒狀的金屬體包覆筒狀的彈性體,因此可有效地抑制筒狀的彈性體發生損傷之情形。另一方面,確認了包覆筒狀的彈性體之筒狀的金屬體與棒材把持構件的把持部之間的摩擦滑動阻力,藉由併用適量的潤滑 油等,可維持在充分低的阻力。因此,確認了藉由伴隨該兩者間的摩擦滑動之轉動、及連結構件的轉動手段所容許的轉動,即使在第一棒材或第二棒材中之另一者高速轉動時,也可穩定地支持及饋送該棒材。如上所述,確認了可針對不同直徑的第一棒材及第二棒材選擇性地利用此等指形構件。 According to a further aspect of the present invention, since one of the first finger-shaped member and the second finger-shaped member is composed of an elastic body that does not need to be cylindrical, there is no problem that the elastic body described above is damaged. On the other hand, it was confirmed that the cylindrical metal body can be elastically deformed due to the presence of the slit hole, so that the rear end of one of the first rod and the second rod can be elastically and stably grasped. Furthermore, it was confirmed that the frictional sliding resistance between the cylindrical metal body and the grasping portion of the rod grasping member can be maintained at a sufficiently low resistance by using an appropriate amount of lubricating oil or the like. Therefore, it was confirmed that the rod can be stably supported and fed even when one of the first rod and the second rod rotates at a high speed, by the rotation accompanied by the frictional sliding between the two and the rotation allowed by the rotation means of the connecting member. In addition, since the other of the first finger-shaped member and the second finger-shaped member covers the cylindrical elastic body with a cylindrical metal body, it is possible to effectively suppress the situation where the cylindrical elastic body is damaged. On the other hand, it was confirmed that the frictional sliding resistance between the cylindrical metal body covering the cylindrical elastic body and the gripping portion of the rod gripping member can be maintained at a sufficiently low resistance by using an appropriate amount of lubricant or the like. Therefore, it was confirmed that the rod can be stably supported and fed even when the other of the first rod and the second rod rotates at a high speed by the rotation accompanied by the frictional sliding between the two and the rotation allowed by the rotation means of the connecting member. As described above, it was confirmed that these finger-shaped members can be selectively used for the first rod and the second rod of different diameters.

1,101,201,301,401:進給桿 1,101,201,301,401: Feed rod

2,102,202,302,402:桿部 2,102,202,302,402: Rod

3,103,203,303,403:葉片部 3,103,203,303,403: Leaf section

4,104,204,304,404:指形夾具 4,104,204,304,404: Finger clamps

10:連結構件 10: Connecting components

105,205,305,405:把持部 105,205,305,405:Handling part

105a,205a,305a,405a:截頭圓錐狀開口 105a, 205a, 305a, 405a: truncated cone-shaped opening

105b,205b,305b,405b:連結部 105b, 205b, 305b, 405b: Connection part

105c,205c,305c,405c:圓筒狀空間 105c,205c,305c,405c: Cylindrical space

105f,205f,305f,405f:凸緣部 105f, 205f, 305f, 405f: flange

110,210,310,410:夾具接頭 110,210,310,410: Clamp connector

111,211,311,411:固定構件 111,211,311,411: Fixed components

111a,211a:前方開口部 111a, 211a: front opening

112,212,312,412:轉動構件 112,212,312,412: Rotating components

112a,212a:中空圓筒部 112a, 212a: Hollow cylindrical part

112f,212f:凸緣部 112f, 212f: flange

113,213,313,413:軸構件 113,213,313,413: shaft components

114,214:銷 114,214:Sales

115,215:後端擴大部 115,215: Backend expansion

116,216:圓環狀肩部、肩部 116,216: Ring-shaped shoulder, shoulder

117,217:鋼珠 117,217:Steel Ball

118,218:鋼珠支持部 118,218: Steel ball support part

119:母螺牙部 119: Female screw thread

130,230,330,430:指形構件 130,230,330,430: Finger-shaped components

131:彈性體 131: Elastic body

131a,232a,332a,432a:截頭圓錐狀開口 131a,232a,332a,432a: truncated cone-shaped opening

131c,232c,332c,432c,462c:內部空間 131c,232c,332c,432c,462c:Inner space

132,232,332,432,462:金屬體 132,232,332,432,462:Metallic body

135,235:區域(收容轉動體的區域) 135,235: Area (area for accommodating rotating objects)

219:母螺牙部 219: Female screw thread

232s:狹縫孔 232s: narrow slit

232t,332t,432t,462t:貫通孔 232t,332t,432t,462t:Through hole

317,333,335,417,433,435:圓柱滾子軸承 317,333,335,417,433,435: Cylindrical roller bearings

319,419:公螺牙部 319,419: Male thread part

332s,432s,462s:狹縫孔 332s,432s,462s: narrow slits

440:間隔件 440: Spacer

C:環繞鏈條 C: Wrap chain

W:棒材 W: Rods

X-X:棒材饋送軸線 X-X: Bar feeding axis

圖1係顯示本發明的第一實施型態之棒材供給機的棒材饋送裝置之概略側面圖。 FIG1 is a schematic side view showing a bar feeding device of a bar feeding machine of the first embodiment of the present invention.

圖2係本發明的第一實施型態之棒材饋送裝置的主要部分的縱斷面圖。 Figure 2 is a longitudinal cross-sectional view of the main part of the rod feeding device of the first embodiment of the present invention.

圖3係圖2的圓筒狀金屬體的斷面圖。 Figure 3 is a cross-sectional view of the cylindrical metal body of Figure 2.

圖4係圖2的圓筒狀金屬體的端面圖。 Figure 4 is an end view of the cylindrical metal body in Figure 2.

圖5係顯示本發明的第二實施型態之棒材供給機的棒材饋送裝置之概略側面圖。 FIG5 is a schematic side view showing the bar feeding device of the bar feeding machine of the second embodiment of the present invention.

圖6係本發明的第二實施型態之棒材饋送裝置的主要部分的縱斷面圖。 Figure 6 is a longitudinal cross-sectional view of the main part of the rod feeding device of the second embodiment of the present invention.

圖7係圖6的指形構件的斷面圖。 FIG7 is a cross-sectional view of the finger-shaped member of FIG6.

圖8係圖6的指形構件的端面圖。 Figure 8 is an end view of the finger-shaped component in Figure 6.

圖9係顯示本發明的第三實施型態之棒材供給機的棒材饋送裝置之概略側面圖。 FIG9 is a schematic side view showing the bar feeding device of the bar feeding machine of the third embodiment of the present invention.

圖10係本發明的第三實施型態之棒材饋送裝置的主要部分的縱斷面圖。 Figure 10 is a longitudinal sectional view of the main part of the rod feeding device of the third embodiment of the present invention.

圖11係顯示本發明的第四實施型態之棒材供給機的棒材饋送裝置之概略側面圖。 FIG. 11 is a schematic side view showing the bar feeding device of the bar feeding machine of the fourth embodiment of the present invention.

圖12係本發明的第四實施型態之棒材饋送裝置的主要部分的縱斷面圖。 Figure 12 is a longitudinal sectional view of the main part of the rod feeding device of the fourth embodiment of the present invention.

圖13係顯示以往的棒材饋送裝置的構成之概略側面圖。 FIG13 is a schematic side view showing the structure of a conventional bar feeding device.

以下,參照圖式來說明本發明的實施型態。 Below, the implementation of the present invention is described with reference to the drawings.

<第一實施型態> <First implementation form>

圖1係顯示本發明的第一實施型態之棒材供給機的棒材饋送裝置之概略側面圖,圖2係本發明的第一實施型態之棒材饋送裝置的主要部分的縱斷面圖,圖3係圖2的圓筒狀金屬體的斷面圖,圖4係圖2的圓筒狀金屬體的端面圖。 FIG1 is a schematic side view of a bar feeding device of a bar feeding machine of the first embodiment of the present invention, FIG2 is a longitudinal cross-sectional view of the main part of the bar feeding device of the first embodiment of the present invention, FIG3 is a cross-sectional view of the cylindrical metal body of FIG2, and FIG4 is an end view of the cylindrical metal body of FIG2.

如圖1至圖4所示,本發明的第一實施型態之棒材供給機的棒材饋送裝置係進給桿101。該進給桿101係具備:配置於棒材供給機的棒材饋送軸線X-X上之桿部102、一體地固定於桿部102的後端部之葉片部103、以及安裝於桿部102的前端部之指形夾具104(棒材把持構件)。 As shown in Figures 1 to 4, the bar feeding device of the bar feeder of the first embodiment of the present invention is a feed rod 101. The feed rod 101 is provided with: a rod 102 arranged on the bar feeding axis X-X of the bar feeder, a blade 103 integrally fixed to the rear end of the rod 102, and a finger clamp 104 (bar gripping member) mounted on the front end of the rod 102.

葉片部103係耦合於構成棒材供給機的進給桿驅動手段或推進手段之環繞鏈條C。環繞鏈條C係繞掛於驅動鏈輪及從動鏈輪(未圖示),驅動鏈輪及從動鏈輪係可轉動地安裝於棒材供給機的機殼(未圖示)。驅動鏈輪係連結至電動馬達等動力源(未圖示),隨著動力源的動作而轉動,使動環繞鏈條C繞行移動。隨著環繞鏈條C的繞行移動,耦合於環繞鏈條C的移動區域部分之葉片部103係前進或後退。亦可使用皮帶及皮帶輪等來取代環繞鏈條C。 The blade part 103 is coupled to the endless chain C constituting the feeding rod driving means or the pushing means of the bar feeding machine. The endless chain C is hung around the driving sprocket and the driven sprocket (not shown), and the driving sprocket and the driven sprocket are rotatably mounted on the housing (not shown) of the bar feeding machine. The driving sprocket is connected to a power source such as an electric motor (not shown), and rotates with the action of the power source, so that the endless chain C moves in an endless manner. As the endless chain C moves in an endless manner, the blade part 103 coupled to the moving area of the endless chain C moves forward or backward. A belt and a pulley may also be used to replace the looped chain C.

指形夾具104係藉由配設於桿部102的前端區域之夾具接頭110(連結構件)而支持於桿部102的前端。夾具接頭110係固定於桿部102且將指形夾具104支持成可轉動。 The finger clamp 104 is supported at the front end of the rod 102 by a clamp joint 110 (connecting structure) provided at the front end area of the rod 102. The clamp joint 110 is fixed to the rod 102 and supports the finger clamp 104 to be rotatable.

指形夾具104係具有可供棒材W(本例為外徑1.0mm的棒材)的後端部插入之把持部105,指形構件130係可轉動地收容於該把持部105內,把持棒材W的後端部。指形構件130係具有筒狀的彈性體131、以及包覆該筒狀的彈性體131之筒狀的金屬體132。 The finger-shaped clamp 104 has a gripping portion 105 into which the rear end of the rod W (a rod with an outer diameter of 1.0 mm in this example) can be inserted, and the finger-shaped member 130 is rotatably accommodated in the gripping portion 105 to grip the rear end of the rod W. The finger-shaped member 130 has a cylindrical elastic body 131 and a cylindrical metal body 132 covering the cylindrical elastic body 131.

本實施型態中,筒狀的彈性體131係由圓筒狀的聚氨酯構件所構成,如圖2所示,例如,外徑為3.4mm,內徑為0.8mm,長度為9.5mm,且於一端側設有與其內部空間131c連通之頂角為60°,開口徑為2.5mm之截頭圓錐狀開口131a。筒狀的金屬體132係由圓筒狀的鋼材、不銹鋼材等所構成,如圖3及圖4所示,例如,外徑為4.0mm,內徑為3.4mm,長度為9.5mm。彈性體131與金屬體132係藉由例如接著而相互固定,亦可採用稱為「聚氨酯成型」之成型法而一體成型。 In this embodiment, the cylindrical elastic body 131 is composed of a cylindrical polyurethane member, as shown in FIG. 2, for example, with an outer diameter of 3.4 mm, an inner diameter of 0.8 mm, and a length of 9.5 mm, and a truncated cone-shaped opening 131a with a top angle of 60° and an opening diameter of 2.5 mm connected to its internal space 131c is provided at one end. The cylindrical metal body 132 is composed of cylindrical steel, stainless steel, etc., as shown in FIG. 3 and FIG. 4, for example, with an outer diameter of 4.0 mm, an inner diameter of 3.4 mm, and a length of 9.5 mm. The elastic body 131 and the metal body 132 are fixed to each other by, for example, bonding, and can also be integrally molded by a molding method called "polyurethane molding".

夾具接頭110係如圖2所示,具有配置於前方部分之轉動構件112(轉動部)、以及配置於後方部分之固定構件111(固定部)。夾具接頭110的固定構件111係一體地固定於桿部102的前端,夾具接頭110的轉動構件112係一體地支持指形夾具104。 As shown in FIG. 2 , the clamp joint 110 has a rotating member 112 (rotating portion) disposed at the front portion and a fixed member 111 (fixed portion) disposed at the rear portion. The fixed member 111 of the clamp joint 110 is integrally fixed to the front end of the rod 102, and the rotating member 112 of the clamp joint 110 integrally supports the finger clamp 104.

更具體而言,指形夾具104的把持部105係直徑為5.0mm,長度為12.5mm,且前端側設有頂角為60°,開口徑為4.5mm的截頭圓錐狀開口105a,截頭圓錐狀開口105a係經由內徑為2.2mm,長度為1.0mm的連結部105b而與內徑為4.05mm的圓筒狀空間105c連通。 More specifically, the gripping portion 105 of the finger-shaped clamp 104 has a diameter of 5.0 mm and a length of 12.5 mm, and a truncated cone-shaped opening 105a with a top angle of 60° and an opening diameter of 4.5 mm is provided on the front end. The truncated cone-shaped opening 105a is connected to the cylindrical space 105c with an inner diameter of 4.05 mm through a connecting portion 105b with an inner diameter of 2.2 mm and a length of 1.0 mm.

並且,指形構件130係可轉動地收容在圓筒狀空間105c的前方內側。因此,可藉由把持部105的截頭圓錐狀開口105a與連結部105b、以及彈性體131的截頭圓錐狀開口131a與內部空間131c來接受棒材W的後端部的插入。 Furthermore, the finger-shaped member 130 is rotatably accommodated in the front inner side of the cylindrical space 105c. Therefore, the rear end of the rod W can be inserted through the truncated cone-shaped opening 105a and the connecting portion 105b of the gripping portion 105, and the truncated cone-shaped opening 131a and the inner space 131c of the elastic body 131.

本例中,彈性體131的內部空間131c的內周壁面係形成為沒有段差或段部之平滑的圓筒面狀。然而,亦可依需求,在內周壁面形成沿軸線方向延伸且向半徑方向內側突出之複數個肋狀突起。內周壁面的直徑或肋狀突起的前端部的內接圓的直徑係設定為略小於棒材W的外徑。 In this example, the inner wall surface of the inner space 131c of the elastic body 131 is formed into a smooth cylindrical surface without step differences or sections. However, as required, a plurality of rib-like protrusions extending along the axial direction and protruding inward in the radial direction can be formed on the inner wall surface. The diameter of the inner wall surface or the diameter of the inscribed circle of the front end of the rib-like protrusion is set to be slightly smaller than the outer diameter of the rod W.

指形構件130的前端係與把持部105的凸緣部105f(形成連結部105b的部位)的後端相向而藉由該凸緣部105f限制向前方的移動。另一方面,指形構件130的後端係隔著收容於區域135內的鋼珠等的轉動體而可相對於轉動構件112的前端轉動。惟,該轉動體亦可省略。或者,棒材的直徑較大時,亦可設置止推軸承來取代該轉動體。 The front end of the finger-shaped member 130 faces the rear end of the flange 105f (the part forming the connecting part 105b) of the grip 105 and is restricted from moving forward by the flange 105f. On the other hand, the rear end of the finger-shaped member 130 can rotate relative to the front end of the rotating member 112 via a rotating body such as a steel ball accommodated in the area 135. However, the rotating body can also be omitted. Alternatively, when the diameter of the rod is larger, a thrust bearing can be provided to replace the rotating body.

夾具接頭110的轉動構件112係具有:中空圓筒部112a,具有小於指形夾具104的外徑的外徑、以及凸緣部112f。軸構件113係插入轉動構件112內,藉由銷114而與轉動構件112連結成一體。 The rotating member 112 of the clamp joint 110 has: a hollow cylindrical portion 112a having an outer diameter smaller than the outer diameter of the finger clamp 104, and a flange portion 112f. The shaft member 113 is inserted into the rotating member 112 and connected to the rotating member 112 by the pin 114.

軸構件113的後部係插入固定構件111的前方開口部111a。固定構件111係具有與轉動構件112的凸緣部112f實質相同的外徑之圓筒狀的中空構件,在固定構件111的中空部形成有圓環狀肩部116,軸構件113的後端擴大部115係可滑動地接觸於該肩部116。 The rear portion of the shaft member 113 is inserted into the front opening 111a of the fixed member 111. The fixed member 111 is a cylindrical hollow member having substantially the same outer diameter as the flange 112f of the rotating member 112. An annular shoulder 116 is formed in the hollow portion of the fixed member 111, and the rear end expansion portion 115 of the shaft member 113 is slidably in contact with the shoulder 116.

後端擴大部115的後面係設有與鋼珠117的外形互補且滑動接觸於鋼珠117之凹狀部。從後端擴大部115起向後方相隔預定間隔而配置有鋼珠支持部118,三個排成直線而配置的鋼珠117係可自由轉動地裝在後端擴大部115與鋼珠支持部118之間。 The rear side of the rear end expansion part 115 is provided with a concave part that complements the shape of the steel ball 117 and slides in contact with the steel ball 117. Steel ball support parts 118 are arranged at predetermined intervals from the rear end expansion part 115 to the rear, and three steel balls 117 arranged in a straight line are freely rotatably installed between the rear end expansion part 115 and the steel ball support part 118.

另外,從桿部102的前端面朝前方突出的公螺牙部(未圖示)係鎖入夾具接頭110的母螺牙部119且鎖緊。 In addition, the male thread portion (not shown) protruding forward from the front end surface of the rod portion 102 is locked into the female thread portion 119 of the clamp joint 110 and locked.

接著,說明本實施型態的進給桿101的動作。 Next, the operation of the feed rod 101 of this embodiment will be described.

配置在棒材饋送軸線X-X上之棒材W的後端部係由把持部105的截頭圓錐狀開口105a與連結部105b以及彈性體131的截頭圓錐狀開口131a與內部空間131c接受插入,且嵌入該內部空間131c內。彈性體131的內周壁面會略為擴徑,利用彈性體131的彈性恢復力而彈力地把持棒材W的後端面。如此,棒材W的後端部由指形夾具104的指形構件130彈力地把持。 The rear end of the rod W disposed on the rod feeding axis X-X is inserted by the truncated cone opening 105a and the connecting portion 105b of the gripping portion 105 and the truncated cone opening 131a and the internal space 131c of the elastic body 131, and is embedded in the internal space 131c. The inner peripheral wall surface of the elastic body 131 will slightly expand in diameter, and the rear end surface of the rod W will be elastically gripped by the elastic restoring force of the elastic body 131. In this way, the rear end of the rod W is elastically gripped by the finger-shaped member 130 of the finger-shaped clamp 104.

棒材W的前端部分係插入例如NC自動車床(未圖示)而插通該NC自動車床的主軸內裝管。NC自動車床的主軸係利用筒夾夾頭將棒材W的前端部夾住,然後,使棒材W高速旋轉,同時利用車刀對棒材W的前端外周部進行切削加工。 The front end of the rod W is inserted into, for example, an NC automatic lathe (not shown) and passed through the spindle inner tube of the NC automatic lathe. The spindle of the NC automatic lathe clamps the front end of the rod W with a collet chuck, and then rotates the rod W at high speed while cutting the outer periphery of the front end of the rod W with a turning tool.

環繞鏈條C係持續施加朝向前方作用的預定推進力或驅動力於進給桿101,但因為軸構件113及轉動構件112可相對於固定在桿部102的固定構件111而轉動,且指形構件130還可相對於固定在轉動構件112的把持部105而轉動,所以高速旋轉的棒材W的後端部會成為由進給桿101支持成可自由轉動的狀態。 The surrounding chain C continuously applies a predetermined thrust or driving force acting forward to the feed rod 101. However, since the shaft member 113 and the rotating member 112 can rotate relative to the fixed member 111 fixed to the rod 102, and the finger member 130 can also rotate relative to the gripping portion 105 fixed to the rotating member 112, the rear end of the high-speed rotating rod W will be supported by the feed rod 101 to be freely rotatable.

根據如上所述的本實施型態的進給桿101(棒材饋送裝置),由於圓筒狀的彈性體131由圓筒狀的金屬體132加以包覆,所以可有效地抑制圓筒狀的彈性體131發生損傷之情形。 According to the feed rod 101 (rod feeding device) of the present embodiment as described above, since the cylindrical elastic body 131 is covered by the cylindrical metal body 132, the situation where the cylindrical elastic body 131 is damaged can be effectively suppressed.

並且,本案發明人確認了針對包覆圓筒狀的彈性體131之圓筒狀的金屬體132與把持部105之間的摩擦滑動阻力,藉由併用適量的潤滑油等,更佳為藉由施以摩擦滑動阻力低、耐磨耗性佳、保油性高之表面處理(磷酸錳皮膜處理、氮化處理等),可維持在充分低的阻力。藉此,確認了藉由伴隨該兩者間 的摩擦滑動之轉動、及夾具接頭110的轉動手段(具體而言為三個鋼珠117及支持三個鋼珠117之後端擴大部115及鋼珠支持部118)所容許的轉動,即使在棒材W高速旋轉時,也可穩定地支持及饋送該棒材W。 Furthermore, the inventor of this case has confirmed that the frictional sliding resistance between the cylindrical metal body 132 covering the cylindrical elastic body 131 and the gripping portion 105 can be maintained at a sufficiently low resistance by using an appropriate amount of lubricating oil, etc., or preferably by applying a surface treatment (manganese phosphate film treatment, nitriding treatment, etc.) with low frictional sliding resistance, good wear resistance, and high oil retention. Thus, it has been confirmed that the rotation accompanied by the frictional sliding between the two and the rotation allowed by the rotation means of the clamp joint 110 (specifically, the three steel balls 117 and the rear end expansion portion 115 and the steel ball support portion 118 supporting the three steel balls 117) can stably support and feed the rod W even when the rod W rotates at a high speed.

<第二實施型態> <Second implementation form>

圖5係顯示本發明的第二實施型態之棒材供給機的棒材饋送裝置之概略側面圖,圖6係本發明的第二實施型態之棒材饋送裝置的主要部分的縱斷面圖,圖7係圖6的指形構件的斷面圖,圖8係圖6的指形構件的端面圖。 FIG. 5 is a schematic side view of the bar feeding device of the bar feeding machine of the second embodiment of the present invention, FIG. 6 is a longitudinal sectional view of the main part of the bar feeding device of the second embodiment of the present invention, FIG. 7 is a sectional view of the finger-shaped member of FIG. 6, and FIG. 8 is an end view of the finger-shaped member of FIG. 6.

如圖5至圖8所示,本發明的第二實施型態之棒材供給機的棒材饋送裝置係進給桿201。該進給桿201也具備:配置於棒材供給機的棒材饋送軸線X-X上之桿部202、一體地固定於桿部202的後端部之葉片部203、以及安裝於桿部202的前端部之指形夾具204(棒材把持構件)。 As shown in Figures 5 to 8, the bar feeding device of the bar feeder of the second embodiment of the present invention is a feed rod 201. The feed rod 201 also has: a rod 202 arranged on the bar feeding axis X-X of the bar feeder, a blade 203 integrally fixed to the rear end of the rod 202, and a finger clamp 204 (bar gripping member) mounted on the front end of the rod 202.

葉片部203係耦合於構成棒材供給機的進給桿驅動手段或推進手段之環繞鏈條C。環繞鏈條C係繞掛於驅動鏈輪及從動鏈輪(未圖示),驅動鏈輪及從動鏈輪係可轉動地安裝於棒材供給機的機殼(未圖示)。驅動鏈輪係連結至電動馬達等動力源(未圖示),隨著動力源的動作而轉動,使動環繞鏈條C繞行移動。隨著環繞鏈條C的繞行移動,耦合於環繞鏈條C的移動區域部分之葉片部203係前進或後退。亦可使用皮帶及皮帶輪等來取代環繞鏈條C。 The blade part 203 is coupled to the endless chain C constituting the feeding rod driving means or the pushing means of the bar feeding machine. The endless chain C is hung around the driving sprocket and the driven sprocket (not shown), and the driving sprocket and the driven sprocket are rotatably mounted on the housing (not shown) of the bar feeding machine. The driving sprocket is connected to a power source such as an electric motor (not shown), and rotates with the action of the power source, so that the endless chain C moves in an endless manner. As the endless chain C moves in an endless manner, the blade part 203 coupled to the moving area of the endless chain C moves forward or backward. Belts and pulleys may also be used to replace the looped chain C.

指形夾具204係藉由配設於桿部202的前端區域之夾具接頭210(連結構件)而支持於桿部202的前端。夾具接頭210係固定於桿部202且將指形夾具204支持成可轉動。 The finger clamp 204 is supported at the front end of the rod 202 by a clamp joint 210 (connecting structure) provided at the front end area of the rod 202. The clamp joint 210 is fixed to the rod 202 and supports the finger clamp 204 to be rotatable.

指形夾具204係具有可供棒材W(本例為外徑2.0mm的棒材)的後端部插入之把持部205,指形構件230係可轉動地收容於該把持部205內,把 持棒材W的後端部。指形構件230係具有筒狀的金屬體232。該筒狀的金屬體232係設有沿著與軸線方向垂直的方向貫通之貫通孔232t、以及從該貫通孔232t沿著軸線方向延伸到前方端之一對相向的狹縫孔232s。 The finger-shaped clamp 204 has a gripping portion 205 into which the rear end of the rod W (a rod with an outer diameter of 2.0 mm in this example) can be inserted, and the finger-shaped member 230 is rotatably accommodated in the gripping portion 205 to grip the rear end of the rod W. The finger-shaped member 230 has a cylindrical metal body 232. The cylindrical metal body 232 is provided with a through hole 232t that penetrates in a direction perpendicular to the axial direction, and a pair of slit holes 232s that extend from the through hole 232t to the front end along the axial direction.

本實施型態中,筒狀的金屬體232係由圓筒狀的鋼構件、SUJ材、SCM等所構成,如圖7及圖8所示,例如,外徑為4.0mm,內徑為2.0mm,長度為9.5mm,且於一端側設有與其內部空間232c連通之頂角為118°,開口徑為3.6mm之截頭圓錐狀開口232a。貫通孔232t係形成為以距另一端側2mm之位置為中心之直徑2.0mm的孔,相向之狹縫孔232s的寬度為0.5mm。 In this embodiment, the cylindrical metal body 232 is composed of cylindrical steel parts, SUJ materials, SCM, etc., as shown in Figures 7 and 8, for example, the outer diameter is 4.0mm, the inner diameter is 2.0mm, the length is 9.5mm, and a truncated cone-shaped opening 232a with a top angle of 118° and an opening diameter of 3.6mm is provided at one end, which is connected to the internal space 232c. The through hole 232t is formed as a hole with a diameter of 2.0mm centered at a position 2mm away from the other end, and the width of the opposite slit hole 232s is 0.5mm.

夾具接頭210係如圖6所示,具有配置於前方部分之轉動構件212(轉動部)、以及配置於後方部分之固定構件211(固定部)。夾具接頭210的固定構件211係一體地固定於桿部202的前端,夾具接頭210的轉動構件212係一體地支持指形夾具204。 As shown in FIG. 6 , the clamp joint 210 has a rotating member 212 (rotating portion) disposed at the front portion and a fixed member 211 (fixed portion) disposed at the rear portion. The fixed member 211 of the clamp joint 210 is integrally fixed to the front end of the rod 202, and the rotating member 212 of the clamp joint 210 integrally supports the finger clamp 204.

更具體而言,指形夾具204的把持部205係直徑為5.0mm,長度為12.5mm,且前端側設有頂角為60°,開口徑為4.5mm的截頭圓錐狀開口205a,截頭圓錐狀開口205a係經由內徑為2.2mm,長度為1.0mm的連結部205b而與內徑為4.05mm的圓筒狀空間205c連通。 More specifically, the gripping portion 205 of the finger-shaped clamp 204 has a diameter of 5.0 mm and a length of 12.5 mm, and a truncated cone-shaped opening 205a with a top angle of 60° and an opening diameter of 4.5 mm is provided on the front end. The truncated cone-shaped opening 205a is connected to the cylindrical space 205c with an inner diameter of 4.05 mm through a connecting portion 205b with an inner diameter of 2.2 mm and a length of 1.0 mm.

並且,指形構件230係可轉動地收容在圓筒狀空間205c的前方內側。因此,可藉由把持部205的截頭圓錐狀開口205a與連結部205b、以及金屬體232的截頭圓錐狀開口232a與內部空間232c來接受棒材W的後端部的插入。 Furthermore, the finger-shaped member 230 is rotatably accommodated in the front inner side of the cylindrical space 205c. Therefore, the rear end of the rod W can be inserted through the truncated cone-shaped opening 205a and the connecting portion 205b of the gripping portion 205, and the truncated cone-shaped opening 232a and the inner space 232c of the metal body 232.

本例中,金屬體232的內部空間232c的內周壁面係形成為沒有段差或段部之平滑的圓筒面狀。然而,亦可依需求,在內周壁面形成沿軸線方向延伸且向半徑方向內側突出之複數個肋狀突起。內周壁面的直徑或肋狀突起的前 端部的內接圓的直徑係設定為略小於棒材W的外徑。 In this example, the inner wall surface of the inner space 232c of the metal body 232 is formed into a smooth cylindrical surface without step differences or sections. However, as required, a plurality of rib-like protrusions extending in the axial direction and protruding inward in the radial direction may be formed on the inner wall surface. The diameter of the inner wall surface or the diameter of the inscribed circle of the front end of the rib-like protrusion is set to be slightly smaller than the outer diameter of the rod W.

指形構件230的前端係與把持部205的凸緣部205f(形成連結部205b的部位)的後端相向而藉由該凸緣部205f限制向前方的移動。另一方面,指形構件230的後端係隔著收容於區域235內的鋼珠等的轉動體而可相對於轉動構件212的前端轉動。惟,該轉動體亦可省略。或者,棒材的直徑較大時,亦可設置止推軸承來取代該轉動體。 The front end of the finger-shaped member 230 faces the rear end of the flange 205f (the part forming the connecting part 205b) of the grip 205 and is restricted from moving forward by the flange 205f. On the other hand, the rear end of the finger-shaped member 230 can rotate relative to the front end of the rotating member 212 via a rotating body such as a steel ball accommodated in the area 235. However, the rotating body can also be omitted. Alternatively, when the diameter of the rod is larger, a thrust bearing can be provided to replace the rotating body.

夾具接頭210的轉動構件212係具有:中空圓筒部212a,具有小於指形夾具204的外徑的外徑、以及凸緣部212f。軸構件213係插入轉動構件212內,藉由銷214而與轉動構件212連結成一體。 The rotating member 212 of the clamp joint 210 has: a hollow cylindrical portion 212a having an outer diameter smaller than the outer diameter of the finger clamp 204, and a flange portion 212f. The shaft member 213 is inserted into the rotating member 212 and connected to the rotating member 212 by the pin 214.

軸構件213的後部係插入固定構件211的前方開口部211a。固定構件211係具有與轉動構件212的凸緣部212f實質相同的外徑之圓筒狀的中空構件,在固定構件211的中空部形成有圓環狀肩部216,軸構件213的後端擴大部215係可滑動地接觸於該肩部216。 The rear portion of the shaft member 213 is inserted into the front opening 211a of the fixed member 211. The fixed member 211 is a cylindrical hollow member having substantially the same outer diameter as the flange 212f of the rotating member 212. An annular shoulder 216 is formed in the hollow portion of the fixed member 211, and the rear end expansion portion 215 of the shaft member 213 is slidably in contact with the shoulder 216.

後端擴大部215的後面係設有與鋼珠217的外形互補且滑動接觸於鋼珠217之凹狀部。從後端擴大部215起向後方相隔預定間隔而配置有鋼珠支持部218,三個排成直線而配置的鋼珠217係可自由轉動地裝在後端擴大部215與鋼珠支持部218之間。 The rear side of the rear end expansion part 215 is provided with a concave part that complements the shape of the steel ball 217 and slides in contact with the steel ball 217. Steel ball support parts 218 are arranged at predetermined intervals from the rear end expansion part 215 to the rear, and three steel balls 217 arranged in a straight line are freely rotatably installed between the rear end expansion part 215 and the steel ball support part 218.

另外,從桿部202的前端面朝前方突出的公螺牙部(未圖示)係鎖入夾具接頭210的母螺牙部219且鎖緊。 In addition, the male thread portion (not shown) protruding forward from the front end of the rod portion 202 is locked into the female thread portion 219 of the clamp joint 210 and locked.

接著,說明本實施型態的進給桿201的動作。 Next, the operation of the feed rod 201 of this embodiment will be described.

配置在棒材饋送軸線X-X上之棒材W的後端部係由把持部205的截頭圓錐狀開口205a與連結部205b以及金屬體232的截頭圓錐狀開口232a 及內部空間232c接受插入,且嵌入該內部空間232c內。金屬體232的內周壁面會略為擴徑,利用其彈性恢復力而彈力地把持棒材W的後端面。如此,棒材W的後端部由指形夾具204的指形構件230彈力地把持。 The rear end of the rod W disposed on the rod feeding axis X-X is inserted into the truncated cone opening 205a and the connecting portion 205b of the gripping portion 205 and the truncated cone opening 232a of the metal body 232 and the internal space 232c, and is embedded in the internal space 232c. The inner peripheral wall surface of the metal body 232 will slightly expand in diameter, and the rear end surface of the rod W will be elastically gripped by its elastic restoring force. In this way, the rear end of the rod W is elastically gripped by the finger-shaped member 230 of the finger-shaped clamp 204.

棒材W的前端部分係插入例如NC自動車床(未圖示)而插通該NC自動車床的主軸內裝管。NC自動車床的主軸係利用筒夾夾頭將棒材W的前端部夾住,然後,使棒材W高速旋轉,同時利用車刀對棒材W的前端外周部進行切削加工。 The front end of the rod W is inserted into, for example, an NC automatic lathe (not shown) and passed through the spindle inner tube of the NC automatic lathe. The spindle of the NC automatic lathe clamps the front end of the rod W with a collet chuck, and then rotates the rod W at high speed while cutting the outer periphery of the front end of the rod W with a turning tool.

環繞鏈條C係持續施加朝向前方作用的預定推進力或驅動力於進給桿201,但因為軸構件213及轉動構件212可相對於固定在桿部202的固定構件211而轉動,且指形構件230還可相對於固定在轉動構件212的把持部205而轉動,所以高速旋轉的棒材W的後端部會成為由進給桿201支持成可自由轉動的狀態。 The surrounding chain C continuously applies a predetermined thrust or driving force acting forward to the feed rod 201. However, since the shaft member 213 and the rotating member 212 can rotate relative to the fixed member 211 fixed to the rod 202, and the finger-shaped member 230 can also rotate relative to the gripping portion 205 fixed to the rotating member 212, the rear end of the high-speed rotating rod W will be supported by the feed rod 201 to be freely rotatable.

根據如上所述的本實施型態的進給桿201(棒材饋送裝置),由於為不需要筒狀的彈性體之構成,所以根本不會有彈性體會受到損傷之問題。 According to the feed rod 201 (rod feeding device) of the present embodiment as described above, since it does not require a cylindrical elastic body, there is no problem of the elastic body being damaged.

並且,本案發明人確認了針對圓筒狀的金屬體232,由於一對相向的狹縫孔232s之存在而可彈性變形,因此可彈性地而穩定地把持棒材W的後端部。 Furthermore, the inventor of this case has confirmed that the cylindrical metal body 232 can be elastically deformed due to the presence of a pair of opposing slit holes 232s, so that the rear end of the rod W can be elastically and stably grasped.

此外,本案發明人確認了針對圓筒狀的金屬體232與把持部205之間的摩擦滑動阻力,藉由併用適量的潤滑油等,更佳為藉由施以摩擦滑動阻力低、耐磨耗性佳、保油性高之表面處理(磷酸錳皮膜處理、氮化處理等),可維持在充分低的阻力。藉此,確認了藉由伴隨該兩者間的摩擦滑動之轉動、及夾具接頭210的轉動手段(具體而言為三個鋼珠217及支持三個鋼珠217之後端擴大部 215及鋼珠支持部218)所容許的轉動,即使在棒材W高速旋轉時,也可穩定地支持及饋送該棒材W。 In addition, the inventor of this case confirmed that the friction and sliding resistance between the cylindrical metal body 232 and the gripping part 205 can be maintained at a sufficiently low resistance by using an appropriate amount of lubricating oil, etc., or preferably by applying a surface treatment (manganese phosphate film treatment, nitriding treatment, etc.) with low friction and sliding resistance, good wear resistance, and high oil retention. Thus, it was confirmed that the rotation accompanied by the friction and sliding between the two and the rotation allowed by the rotation means of the clamp joint 210 (specifically, the three steel balls 217 and the rear end expansion part 215 supporting the three steel balls 217 and the steel ball support part 218) can stably support and feed the rod W even when the rod W rotates at a high speed.

<第三實施型態> <Third implementation form>

圖9係顯示本發明的第三實施型態之棒材供給機的棒材饋送裝置之概略側面圖,圖10係本發明的第三實施型態之棒材饋送裝置的主要部分的縱斷面圖。 FIG. 9 is a schematic side view showing the bar feeding device of the bar feeding machine of the third embodiment of the present invention, and FIG. 10 is a longitudinal cross-sectional view of the main part of the bar feeding device of the third embodiment of the present invention.

如圖9及圖10所示,本發明的第三實施型態之棒材供給機的棒材饋送裝置係進給桿301。該進給桿301也具備:配置於棒材供給機的棒材饋送軸線X-X上之桿部302、一體地固定於桿部302的後端部之葉片部303、以及安裝於桿部302的前端部之指形夾具304(棒材把持構件)。 As shown in Figures 9 and 10, the bar feeding device of the bar feeding machine of the third embodiment of the present invention is a feed rod 301. The feed rod 301 also has: a rod 302 arranged on the bar feeding axis X-X of the bar feeding machine, a blade 303 integrally fixed to the rear end of the rod 302, and a finger clamp 304 (bar holding member) mounted on the front end of the rod 302.

葉片部303係耦合於構成棒材供給機的進給桿驅動手段或推進手段之環繞鏈條C。環繞鏈條C係繞掛於驅動鏈輪及從動鏈輪(未圖示),驅動鏈輪及從動鏈輪係可轉動地安裝於棒材供給機的機殼(未圖示)。驅動鏈輪係連結至電動馬達等動力源(未圖示),隨著動力源的動作而轉動,使動環繞鏈條C繞行移動。隨著環繞鏈條C的繞行移動,耦合於環繞鏈條C的移動區域部分之葉片部303係前進或後退。亦可使用皮帶及皮帶輪等來取代環繞鏈條C。 The blade part 303 is coupled to the endless chain C constituting the feeding rod driving means or the pushing means of the bar feeding machine. The endless chain C is hung around the driving sprocket and the driven sprocket (not shown), and the driving sprocket and the driven sprocket are rotatably mounted on the housing (not shown) of the bar feeding machine. The driving sprocket is connected to a power source such as an electric motor (not shown), and rotates with the action of the power source, so that the endless chain C moves in an endless manner. As the endless chain C moves in an endless manner, the blade part 303 coupled to the moving area of the endless chain C moves forward or backward. A belt and a pulley may also be used to replace the looped chain C.

指形夾具304係藉由配設於桿部302的前端區域之夾具接頭310(連結構件)而支持於桿部302的前端。夾具接頭310係固定於桿部302且將指形夾具304支持成可轉動。 The finger clamp 304 is supported at the front end of the rod 302 by a clamp joint 310 (connecting structure) provided at the front end area of the rod 302. The clamp joint 310 is fixed to the rod 302 and supports the finger clamp 304 to be rotatable.

指形夾具304係具有可供棒材W(本例為外徑20mm、32mm或51mm等棒材)的後端部插入之把持部305,指形構件330係可轉動地收容於該把持部305內,把持棒材W的後端部。指形構件330係具有筒狀的金屬體332。該筒狀的金屬體332係設有沿著與軸線方向垂直的方向貫通之貫通孔332t、以及 從該貫通孔332t沿著軸線方向延伸到前方端之沿周方向均等分佈的三個(三分割的)狹縫孔332s。 The finger-shaped clamp 304 has a gripping portion 305 into which the rear end of a rod W (a rod with an outer diameter of 20 mm, 32 mm or 51 mm in this example) can be inserted, and the finger-shaped member 330 is rotatably accommodated in the gripping portion 305 to grip the rear end of the rod W. The finger-shaped member 330 has a cylindrical metal body 332. The cylindrical metal body 332 is provided with a through hole 332t that penetrates in a direction perpendicular to the axial direction, and three (three-divided) slit holes 332s that are evenly distributed in the circumferential direction and extend from the through hole 332t to the front end along the axial direction.

本實施型態中,筒狀的金屬體332係由圓筒狀的鋼構件、SUJ材、SCM等所構成,如圖10所示,例如,外徑為32mm,內徑為20mm,長度為50mm,且於一端側設有與其內部空間332c連通之頂角為60°,開口徑為30mm之截頭圓錐狀開口332a。貫通孔332t係形成為以距另一端側12mm之位置為中心之直徑6mm的孔,狹縫孔332s的寬度為1.5mm。 In this embodiment, the cylindrical metal body 332 is composed of cylindrical steel parts, SUJ materials, SCM, etc., as shown in Figure 10, for example, the outer diameter is 32mm, the inner diameter is 20mm, the length is 50mm, and a truncated cone-shaped opening 332a with a top angle of 60° and an opening diameter of 30mm connected to its internal space 332c is provided at one end. The through hole 332t is formed as a hole with a diameter of 6mm centered at a position 12mm away from the other end, and the width of the slit hole 332s is 1.5mm.

夾具接頭310係如圖10所示,具有配置於前方部分之轉動構件312(轉動部)、以及配置於後方部分之固定構件311(固定部)。夾具接頭310的固定構件311係一體地固定於桿部302的前端,夾具接頭310的轉動構件312係一體地支持指形夾具304。 As shown in FIG. 10 , the clamp joint 310 has a rotating member 312 (rotating portion) disposed at the front portion and a fixed member 311 (fixed portion) disposed at the rear portion. The fixed member 311 of the clamp joint 310 is integrally fixed to the front end of the rod 302, and the rotating member 312 of the clamp joint 310 integrally supports the finger clamp 304.

更具體而言,指形夾具304的把持部305係直徑為50mm,長度為78mm,且前端側設有頂角為96°,開口徑為48mm的截頭圓錐狀開口305a,截頭圓錐狀開口305a係經由內徑為26mm,長度為4mm的連結部305b而與內徑為42mm的圓筒狀空間305c連通。 More specifically, the gripping portion 305 of the finger-shaped clamp 304 has a diameter of 50 mm and a length of 78 mm, and a truncated cone-shaped opening 305a with a top angle of 96° and an opening diameter of 48 mm is provided on the front end. The truncated cone-shaped opening 305a is connected to the cylindrical space 305c with an inner diameter of 42 mm through a connecting portion 305b with an inner diameter of 26 mm and a length of 4 mm.

並且,指形構件330藉由圓柱滾子軸承333可轉動地收容在圓筒狀空間305c的內側。因此,可藉由把持部305的截頭圓錐狀開口305a與連結部305b、以及金屬體332的截頭圓錐狀開口332a與內部空間332c來接受棒材W的後端部的插入。 Furthermore, the finger-shaped member 330 is rotatably accommodated inside the cylindrical space 305c by means of a cylindrical roller bearing 333. Therefore, the rear end of the rod W can be inserted through the truncated cone-shaped opening 305a and the connecting portion 305b of the gripping portion 305, and the truncated cone-shaped opening 332a and the internal space 332c of the metal body 332.

本例中,金屬體332的內部空間332c的內周壁面係形成為沒有段差或段部之平滑的圓筒面狀。然而,亦可依需求,在內周壁面形成沿軸線方向延伸且向半徑方向內側突出之複數個肋狀突起。內周壁面的直徑或肋狀突起的前 端部的內接圓的直徑係設定為略小於棒材W的外徑。 In this example, the inner wall surface of the inner space 332c of the metal body 332 is formed into a smooth cylindrical surface without step differences or sections. However, as required, a plurality of rib-like protrusions extending in the axial direction and protruding inward in the radial direction may be formed on the inner wall surface. The diameter of the inner wall surface or the diameter of the inscribed circle of the front end of the rib-like protrusion is set to be slightly smaller than the outer diameter of the rod W.

指形構件330的前端係與把持部305的凸緣部305f(形成連結部305b的部位)的後端相向而藉由該凸緣部305f限制向前方的移動。另一方面,指形構件330的後部係藉由圓柱滾子軸承335而也可相對於轉動構件312的前方的筒狀開口部轉動。 The front end of the finger-shaped member 330 faces the rear end of the flange 305f (the part forming the connecting part 305b) of the gripping part 305, and the forward movement is restricted by the flange 305f. On the other hand, the rear part of the finger-shaped member 330 can also rotate relative to the front cylindrical opening of the rotating member 312 by means of a cylindrical roller bearing 335.

夾具接頭310的轉動構件312係在後方側與軸構件313連結成一體,且在前方側與把持部305的後方側的母螺牙部螺合。 The rotating member 312 of the clamp joint 310 is connected to the shaft member 313 at the rear side and is screwed with the female thread portion at the rear side of the gripping portion 305 at the front side.

軸構件313的後部係隔著圓柱滾子軸承317而插入固定構件311的筒狀開口部。 The rear portion of the shaft member 313 is inserted into the cylindrical opening of the fixed member 311 via the cylindrical roller bearing 317.

另外,從桿部302的前端面朝前方突出的母螺牙部(未圖示)鎖入夾具接頭310的公螺牙部319且鎖緊。 In addition, the female thread portion (not shown) protruding forward from the front end surface of the rod portion 302 is locked into the male thread portion 319 of the clamp joint 310 and locked.

接著,說明本實施型態的進給桿301的動作。 Next, the operation of the feed rod 301 of this embodiment will be described.

配置在棒材饋送軸線X-X上之棒材W的後端部係由把持部305的截頭圓錐狀開口305a與連結部305b以及金屬體332的截頭圓錐狀開口332a與內部空間332c接受插入,且嵌入該內部空間332c內。金屬體332的內周壁面會略為擴徑,利用其彈性恢復力而彈力地把持棒材W的後端面。如此,棒材W的後端部由指形夾具304的指形構件330彈力地把持。 The rear end of the rod W disposed on the rod feeding axis X-X is inserted into the truncated cone opening 305a and the connecting portion 305b of the gripping portion 305 and the truncated cone opening 332a and the internal space 332c of the metal body 332, and is embedded in the internal space 332c. The inner peripheral wall surface of the metal body 332 will slightly expand in diameter, and the rear end surface of the rod W will be elastically gripped by its elastic restoring force. In this way, the rear end of the rod W is elastically gripped by the finger-shaped member 330 of the finger-shaped clamp 304.

棒材W的前端部分係插入例如NC自動車床(未圖示)而插通該NC自動車床的主軸內裝管。NC自動車床的主軸係利用筒夾夾頭將棒材W的前端部夾住,然後,使棒材W高速旋轉,同時利用車刀對棒材W的前端外周部進行切削加工。 The front end of the rod W is inserted into, for example, an NC automatic lathe (not shown) and passed through the spindle inner tube of the NC automatic lathe. The spindle of the NC automatic lathe clamps the front end of the rod W with a collet chuck, and then rotates the rod W at high speed while cutting the outer periphery of the front end of the rod W with a turning tool.

環繞鏈條C係持續施加朝向前方作用的預定推進力或驅動力於進 給桿301,但因為軸構件313及轉動構件312可相對於固定在桿部302的固定構件311而轉動,且指形構件330還可相對於固定在轉動構件312的把持部305而轉動,所以高速旋轉的棒材W的後端部會成為由進給桿301支持成可自由轉動的狀態。 The surrounding chain C continuously applies a predetermined thrust or driving force acting forward to the feed rod 301. However, since the shaft member 313 and the rotating member 312 can rotate relative to the fixed member 311 fixed to the rod 302, and the finger member 330 can also rotate relative to the gripping portion 305 fixed to the rotating member 312, the rear end of the high-speed rotating rod W will be supported by the feed rod 301 to be freely rotatable.

根據如上所述的本實施型態的進給桿301(棒材饋送裝置),由於為不需要筒狀的彈性體之構成,所以根本不會有彈性體會受到損傷之問題。 According to the feed rod 301 (rod feeding device) of the present embodiment as described above, since it does not require a cylindrical elastic body, there is no problem of the elastic body being damaged.

並且,本案發明人確認了針對圓筒狀的金屬體332,由於狹縫孔332s之存在而可彈性變形,因此可彈性地而穩定地把持棒材W的後端部。 Furthermore, the inventor of this case has confirmed that the cylindrical metal body 332 can be elastically deformed due to the presence of the slit hole 332s, so the rear end of the rod W can be elastically and stably grasped.

此外,本案發明人確認了圓筒狀的金屬體332與把持部305之間的圓柱滾子軸承333的阻力可維持在充分低的阻力。藉此,確認了藉由該兩者間的轉動、及夾具接頭310的轉動手段(具體而言為圓柱滾子軸承317)所容許的轉動,即使在棒材W高速旋轉時,也可穩定地支持及饋送該棒材W。 In addition, the inventor of this case confirmed that the resistance of the cylindrical roller bearing 333 between the cylindrical metal body 332 and the gripping portion 305 can be maintained at a sufficiently low resistance. Thus, it was confirmed that the rod W can be stably supported and fed even when the rod W rotates at high speed through the rotation between the two and the rotation allowed by the rotation means of the clamp joint 310 (specifically, the cylindrical roller bearing 317).

<第四實施型態> <Fourth implementation form>

圖11係顯示本發明的第四實施型態之棒材供給機的棒材饋送裝置之概略側面圖,圖12係本發明的第四實施型態之棒材饋送裝置的主要部分的縱斷面圖。 FIG. 11 is a schematic side view of the bar feeding device of the bar feeding machine of the fourth embodiment of the present invention, and FIG. 12 is a longitudinal cross-sectional view of the main part of the bar feeding device of the fourth embodiment of the present invention.

如圖11及圖12所示,本發明的第四實施型態之棒材供給機的棒材饋送裝置係進給桿401。該進給桿401也具備:配置於棒材供給機的棒材饋送軸線X-X上之桿部402、一體地固定於桿部402的後端部之葉片部403、以及安裝於桿部402的前端部之指形夾具404(棒材把持構件)。 As shown in Figures 11 and 12, the bar feeding device of the bar feeding machine of the fourth embodiment of the present invention is a feed rod 401. The feed rod 401 also has: a rod 402 arranged on the bar feeding axis X-X of the bar feeding machine, a blade 403 integrally fixed to the rear end of the rod 402, and a finger clamp 404 (bar holding member) mounted on the front end of the rod 402.

葉片部403係耦合於構成棒材供給機的進給桿驅動手段或推進手段之環繞鏈條C。環繞鏈條C係繞掛於驅動鏈輪及從動鏈輪(未圖示),驅動鏈輪及從動鏈輪係可轉動地安裝於棒材供給機的機殼(未圖示)。驅動鏈輪係連結至電 動馬達等動力源(未圖示),隨著動力源的動作而轉動,使動環繞鏈條C繞行移動。隨著環繞鏈條C的繞行移動,耦合於環繞鏈條C的移動區域部分之葉片部403係前進或後退。亦可使用皮帶及皮帶輪等來取代環繞鏈條C。 The blade part 403 is coupled to the endless chain C constituting the feeding rod driving means or the pushing means of the bar feeding machine. The endless chain C is hung around the driving sprocket and the driven sprocket (not shown), and the driving sprocket and the driven sprocket are rotatably mounted on the housing (not shown) of the bar feeding machine. The driving sprocket is connected to a power source such as an electric motor (not shown), and rotates with the action of the power source, so that the endless chain C moves in an endless manner. As the endless chain C moves in an endless manner, the blade part 403 coupled to the moving area of the endless chain C moves forward or backward. A belt and a pulley may also be used to replace the looped chain C.

指形夾具404係藉由配設於桿部402的前端區域之夾具接頭410(連結構件)而支持於桿部402的前端。夾具接頭410係固定於桿部402且將指形夾具404支持成可轉動。 The finger clamp 404 is supported at the front end of the rod 402 by a clamp joint 410 (connecting member) provided at the front end area of the rod 402. The clamp joint 410 is fixed to the rod 402 and supports the finger clamp 404 to be rotatable.

指形夾具404係具有可供兩種不同直徑的棒材W(本例為外徑20mm、32mm或51mm等的棒材)的後端部插入之把持部405,兩個指形構件430(第一指形構件及第二指形構件)係隔著圓柱滾子軸承433、435可轉動地收容於該把持部405內,而可選擇性地把持兩種不同直徑的棒材W(第一棒材及第二棒材)的後端部。兩個指形構件430分別具有筒狀的金屬體432、462,且兩者之間配置有筒狀的間隔件440。兩個筒狀的金屬體432、462分別設有沿著與軸線方向垂直的方向貫通之貫通孔432t、462t、以及從該貫通孔432t、462t沿著軸線方向延伸到前方端之沿周方向均等分佈的三個(三分割的)狹縫孔432s、462s。 The finger-shaped clamp 404 has a gripping portion 405 into which the rear ends of two rods W of different diameters (in this example, rods with outer diameters of 20 mm, 32 mm, or 51 mm, etc.) can be inserted. Two finger-shaped members 430 (a first finger-shaped member and a second finger-shaped member) are rotatably accommodated in the gripping portion 405 via cylindrical roller bearings 433 and 435, and can selectively grip the rear ends of two rods W of different diameters (a first rod and a second rod). The two finger-shaped members 430 have cylindrical metal bodies 432 and 462, respectively, and a cylindrical spacer 440 is disposed between the two. The two cylindrical metal bodies 432 and 462 are respectively provided with through holes 432t and 462t that penetrate in a direction perpendicular to the axial direction, and three (three-divided) slit holes 432s and 462s that are evenly distributed in the circumferential direction and extend from the through holes 432t and 462t to the front end along the axial direction.

本實施型態中,兩個筒狀的金屬體432、462係由圓筒狀的鋼構件、SUJ材、SCM等所構成,前方側的筒狀的金屬體432係如圖12所示,例如,外徑為32mm,內徑為24mm,長度為50mm,且於一端側設有與其內部空間432c連通之頂角為60°,開口徑為30mm之截頭圓錐狀開口432a。貫通孔432t係形成為以距另一端側12mm之位置為中心之直徑6mm的孔,三分割的各狹縫孔432s的寬度為1.5mm。後方側的筒狀的金屬體462係如圖12所示,例如,外徑為32mm,內徑為16mm,長度為50mm,且於一端側設有與其內部空間462c連通之頂角為60°,開口徑為30mm之截頭圓錐狀開口462a。貫通孔462t 係形成為以距另一端側12mm之位置為中心之直徑6mm的孔,三分割的各狹縫孔462s的寬度為1.5mm。 In this embodiment, the two cylindrical metal bodies 432 and 462 are made of cylindrical steel members, SUJ materials, SCM, etc. The front cylindrical metal body 432 is as shown in FIG. 12, for example, with an outer diameter of 32 mm, an inner diameter of 24 mm, and a length of 50 mm, and a truncated cone-shaped opening 432a with a vertex angle of 60° and an opening diameter of 30 mm connected to the internal space 432c thereof is provided at one end. The through hole 432t is formed as a hole with a diameter of 6 mm centered at a position 12 mm from the other end, and the width of each slit hole 432s divided into three parts is 1.5 mm. The cylindrical metal body 462 on the rear side is shown in FIG12, for example, with an outer diameter of 32 mm, an inner diameter of 16 mm, and a length of 50 mm, and a truncated cone-shaped opening 462a with a top angle of 60° and an opening diameter of 30 mm connected to its internal space 462c is provided at one end. The through hole 462t is formed as a hole with a diameter of 6 mm centered at a position 12 mm from the other end, and the width of each slit hole 462s divided into three parts is 1.5 mm.

夾具接頭410係如圖12所示,具有配置於前方部分之轉動構件412(轉動部)、以及配置於後方部分之固定構件411(固定部)。夾具接頭410的固定構件411係一體地固定於桿部402的前端,夾具接頭410的轉動構件412係一體地支持指形夾具404。 As shown in FIG. 12 , the clamp joint 410 has a rotating member 412 (rotating portion) disposed at the front portion and a fixed member 411 (fixed portion) disposed at the rear portion. The fixed member 411 of the clamp joint 410 is integrally fixed to the front end of the rod 402, and the rotating member 412 of the clamp joint 410 integrally supports the finger clamp 404.

更具體而言,指形夾具404的把持部405係直徑為50mm,長度為112mm,且前端側設有頂角為96°,開口徑為48mm的截頭圓錐狀開口405a,截頭圓錐狀開口405a係經由內徑為26mm,長度為4mm的連結部405b而與內徑為42mm的圓筒狀空間405c連通。 More specifically, the gripping portion 405 of the finger-shaped clamp 404 has a diameter of 50 mm and a length of 112 mm, and a truncated cone-shaped opening 405a with a top angle of 96° and an opening diameter of 48 mm is provided on the front end. The truncated cone-shaped opening 405a is connected to the cylindrical space 405c with an inner diameter of 42 mm through a connecting portion 405b with an inner diameter of 26 mm and a length of 4 mm.

並且,前方側的筒狀的金屬體432藉由圓柱滾子軸承433可轉動地收容在圓筒狀空間405c的內側。因此,可藉由把持部405的截頭圓錐狀開口405a與連結部405b、以及金屬體432的截頭圓錐狀開口432a與內部空間432c來接受棒材W的後端部的插入。 Furthermore, the cylindrical metal body 432 on the front side is rotatably accommodated inside the cylindrical space 405c via the cylindrical roller bearing 433. Therefore, the rear end of the rod W can be inserted through the truncated cone-shaped opening 405a and the connecting part 405b of the gripping part 405, and the truncated cone-shaped opening 432a and the internal space 432c of the metal body 432.

本例中,金屬體432的內部空間432c的內周壁面係形成為沒有段差或段部之平滑的圓筒面狀。然而,亦可依需求,在內周壁面形成沿軸線方向延伸且向半徑方向內側突出之複數個肋狀突起。內周壁面的直徑或肋狀突起的前端部的內接圓的直徑係設定為略小於棒材W的外徑。 In this example, the inner wall surface of the inner space 432c of the metal body 432 is formed into a smooth cylindrical surface without step differences or sections. However, as required, a plurality of rib-like protrusions extending along the axial direction and protruding inward in the radial direction can be formed on the inner wall surface. The diameter of the inner wall surface or the diameter of the inscribed circle of the front end of the rib-like protrusion is set to be slightly smaller than the outer diameter of the rod W.

前方側的筒狀的金屬體432的前端係與把持部405的凸緣部405f(形成連結部405b的部位)的後端相向而藉由該凸緣部405f限制向前方的移動。另一方面,後方側的筒狀的金屬體462係隔著圓柱滾子軸承435而可相對於轉動構件412的前方的筒狀開口部而轉動。 The front end of the cylindrical metal body 432 on the front side faces the rear end of the flange 405f (the part forming the connecting part 405b) of the grip 405, and the forward movement is restricted by the flange 405f. On the other hand, the cylindrical metal body 462 on the rear side can rotate relative to the front cylindrical opening of the rotating member 412 via the cylindrical roller bearing 435.

夾具接頭410的轉動構件412係在後方側與軸構件413連結成一體,且在前方側與把持部405的後方側的母螺牙部螺合。 The rotating member 412 of the clamp joint 410 is connected to the shaft member 413 at the rear side and is screwed with the female thread portion at the rear side of the gripping portion 405 at the front side.

軸構件413的後部係隔著圓柱滾子軸承417而插入固定構件411的筒狀開口部。 The rear portion of the shaft member 413 is inserted into the cylindrical opening of the fixed member 411 via the cylindrical roller bearing 417.

另外,從桿部402的前端面朝前方突出的母螺牙部(未圖示)鎖入夾具接頭410的公螺牙部419且鎖緊。 In addition, the female thread portion (not shown) protruding forward from the front end of the rod portion 402 is locked into the male thread portion 419 of the clamp joint 410 and locked.

接著,說明本實施型態的進給桿401的動作。 Next, the operation of the feed rod 401 of this embodiment will be described.

配置在棒材饋送軸線X-X上之棒材W的後端部係由把持部405的截頭圓錐狀開口405a與連結部405b以及金屬體432、462的截頭圓錐狀開口432a、462a與內部空間432c、462c接受插入,且嵌入該內部空間432c、462c內。金屬體462的內周壁面會略為擴徑,利用其彈性恢復力而彈力地把持棒材W的後端面。如此,棒材W的後端部由指形夾具404的指形構件430的後方側的金屬體462彈力地把持。或者,棒材W的直徑較大時,配置在棒材饋送軸線X-X上之棒材W的後端部係由把持部405的截頭圓錐狀開口405a與連結部405b以及金屬體432的截頭圓錐狀開口432a及內部空間432c接受插入,且嵌入該內部空間432c內。金屬體432的內周壁面會略為擴徑,利用其彈性恢復力而彈力地把持棒材W的後端面。如此,棒材W的後端部由指形夾具404的指形構件430的前方側的金屬體432彈力地把持。如此,本實施型態之指形構件430可對應於兩種棒材W的直徑。 The rear end of the rod W disposed on the rod feeding axis X-X is inserted into and received by the truncated cone opening 405a and the connecting portion 405b of the gripping portion 405 and the truncated cone openings 432a, 462a and the internal spaces 432c, 462c of the metal bodies 432, 462, and is embedded in the internal spaces 432c, 462c. The inner peripheral wall surface of the metal body 462 slightly expands in diameter, and the rear end surface of the rod W is elastically gripped by its elastic restoring force. In this way, the rear end of the rod W is elastically gripped by the metal body 462 on the rear side of the finger-shaped member 430 of the finger-shaped clamp 404. Alternatively, when the diameter of the rod W is larger, the rear end of the rod W disposed on the rod feeding axis X-X is inserted by the truncated cone-shaped opening 405a and the connecting portion 405b of the gripping portion 405 and the truncated cone-shaped opening 432a and the internal space 432c of the metal body 432, and is embedded in the internal space 432c. The inner peripheral wall surface of the metal body 432 will slightly expand in diameter, and the rear end surface of the rod W will be elastically gripped by its elastic restoring force. In this way, the rear end of the rod W is elastically gripped by the metal body 432 on the front side of the finger-shaped member 430 of the finger-shaped clamp 404. In this way, the finger-shaped member 430 of this embodiment can correspond to two diameters of the rod W.

控制上,預先確認應將要供給的棒材W插入哪一個指形構件430(金屬體432或金屬體462),再使進給桿401移動使棒材W的後端到達希望的位置,而可將該棒材W插入對應的指形構件430(金屬體432或金屬體462)。 In terms of control, it is confirmed in advance which finger-shaped member 430 (metal body 432 or metal body 462) the bar W to be supplied should be inserted into, and then the feed rod 401 is moved so that the rear end of the bar W reaches the desired position, and the bar W can be inserted into the corresponding finger-shaped member 430 (metal body 432 or metal body 462).

然後,棒材W的前端部分係插入例如NC自動車床(未圖示)而插通該NC自動車床的主軸內裝管。NC自動車床的主軸係利用筒夾夾頭將棒材W的前端部夾住,然後,使棒材W高速旋轉,同時利用車刀對棒材W的前端外周部進行切削加工。 Then, the front end of the rod W is inserted into, for example, an NC automatic lathe (not shown) and inserted through the spindle inner tube of the NC automatic lathe. The spindle of the NC automatic lathe clamps the front end of the rod W with a collet chuck, and then the rod W is rotated at high speed, while the outer periphery of the front end of the rod W is cut with a turning tool.

環繞鏈條C係持續施加朝向前方作用的預定推進力或驅動力於進給桿401,但因為軸構件413及轉動構件412可相對於固定在桿部402的固定構件411而轉動,且指形構件430還可相對於固定在轉動構件412的把持部405而轉動,所以高速旋轉的棒材W的後端部會成為由進給桿401支持成可自由轉動的狀態。 The surrounding chain C continuously applies a predetermined thrust or driving force acting forward to the feed rod 401. However, since the shaft member 413 and the rotating member 412 can rotate relative to the fixed member 411 fixed to the rod 402, and the finger member 430 can also rotate relative to the gripping portion 405 fixed to the rotating member 412, the rear end of the high-speed rotating rod W will be supported by the feed rod 401 to be freely rotatable.

根據如上所述的本實施型態的進給桿401(棒材饋送裝置),由於是不需要筒狀的彈性體之構成,所以根本不會有彈性體會受到損傷之問題。 According to the feed rod 401 (rod feeding device) of the present embodiment as described above, since it does not require a cylindrical elastic body, there is no problem of the elastic body being damaged.

並且,本案發明人確認了針對圓筒狀的金屬體432、462,由於三個狹縫孔432s、462s之存在而可彈性變形,因此可彈性地而穩定地把持棒材W的後端部。 Furthermore, the inventor of this case has confirmed that the cylindrical metal bodies 432 and 462 can be elastically deformed due to the presence of the three slit holes 432s and 462s, so the rear end of the rod W can be elastically and stably grasped.

此外,本案發明人確認了圓筒狀的金屬體432與把持部405之間的圓柱滾子軸承433的阻力可維持在充分低的阻力。藉此,確認了藉由該兩者間的轉動、及夾具接頭410的轉動手段(具體而言為圓柱滾子軸承417)所容許的轉動,即使在棒材W高速旋轉時,也可穩定地支持及饋送該棒材W。 In addition, the inventor of this case confirmed that the resistance of the cylindrical roller bearing 433 between the cylindrical metal body 432 and the gripping portion 405 can be maintained at a sufficiently low resistance. Thus, it was confirmed that the rod W can be stably supported and fed even when the rod W rotates at high speed through the rotation between the two and the rotation allowed by the rotation means of the clamp joint 410 (specifically, the cylindrical roller bearing 417).

以上的第四實施型態之棒材供給機的棒材饋送裝置(進給桿401)中,兩個指形構件430(第一指形構件及第二指形構件)分別具有筒狀的金屬體432、462,該筒狀的金屬體432、462分別具有沿著與軸線方向垂直的方向貫通之貫通孔432t、462t、以及從該貫通孔432t、462t沿著軸線方向延伸到前方端之 沿周方向均等分佈的三個(三分割的)狹縫孔432s、462s。然而,兩個指形構件430之各者亦可為具有筒狀的彈性體、以及包覆該筒狀的彈性體之筒狀的金屬體(參照圖1至圖4所示的第一實施型態之棒材供給機的棒材饋送裝置(進給桿101))。此時,由於兩個指形構件430中,筒狀的彈性體係由筒狀的金屬體加以包覆,所以可有效地抑制筒狀的彈性體發生損傷之情形。另一方面,由於包覆筒狀的彈性體之筒狀的金屬體與棒材把持構件的把持部405之間的摩擦滑動阻力可藉由圓柱滾子軸承433等而維持在充分低的阻力,所以藉由該兩者間的轉動、及夾具接頭410的轉動手段(具體而言為圓柱滾子軸承417)所容許的轉動,即使在棒材W高速旋轉時,也可穩定地支持及饋送該棒材W。亦即,即使此情況下,也可針對不同直徑的兩種棒材選擇性地利用此等指形構件。 In the bar feeding device (feed rod 401) of the bar feeding machine of the fourth embodiment, two finger-shaped members 430 (first finger-shaped member and second finger-shaped member) respectively have cylindrical metal bodies 432 and 462, and the cylindrical metal bodies 432 and 462 respectively have through holes 432t and 462t that penetrate in a direction perpendicular to the axial direction, and three (three-divided) slit holes 432s and 462s that extend from the through holes 432t and 462t to the front end in the axial direction and are evenly distributed in the circumferential direction. However, each of the two finger-shaped members 430 may also include a cylindrical elastic body and a cylindrical metal body covering the cylindrical elastic body (refer to the bar feeding device (feed rod 101) of the bar feeding machine of the first embodiment shown in FIGS. 1 to 4). In this case, since the cylindrical elastic body of the two finger-shaped members 430 is covered by the cylindrical metal body, the situation where the cylindrical elastic body is damaged can be effectively suppressed. On the other hand, since the frictional sliding resistance between the cylindrical metal body covering the cylindrical elastic body and the holding portion 405 of the rod holding member can be maintained at a sufficiently low resistance by the cylindrical roller bearing 433, etc., the rod W can be stably supported and fed even when the rod W rotates at a high speed by the rotation between the two and the rotation allowed by the rotating means of the clamp joint 410 (specifically, the cylindrical roller bearing 417). That is, even in this case, these finger-shaped members can be selectively used for two rods of different diameters.

或者,可使兩個指形構件430(第一指形構件及第二指形構件)中的一者具有筒狀的金屬體,該筒狀的金屬體具有沿著與軸線方向垂直的方向貫通之貫通孔、以及從該貫通孔沿著軸線方向延伸到前方端之沿周方向均等分佈的三個(三分割的)狹縫孔,而使兩個指形構件430中的另一者具有筒狀的彈性體、以及包覆該筒狀的彈性體之筒狀的金屬體。此情況下,也可針對不同直徑的兩種棒材選擇性地利用此等指形構件。 Alternatively, one of the two finger-shaped members 430 (the first finger-shaped member and the second finger-shaped member) may have a cylindrical metal body having a through hole extending in a direction perpendicular to the axial direction and three (three-divided) slit holes evenly distributed in the circumferential direction extending from the through hole in the axial direction to the front end, while the other of the two finger-shaped members 430 may have a cylindrical elastic body and a cylindrical metal body covering the cylindrical elastic body. In this case, these finger-shaped members may also be selectively used for two rods of different diameters.

另外,設於把持部405之指形構件430的個數並不限於兩個,亦可為三個以上。此情況下,可針對不同直徑的三種以上的棒材選擇性地利用此等指形構件。 In addition, the number of finger-shaped members 430 provided in the gripping portion 405 is not limited to two, and may be three or more. In this case, these finger-shaped members may be selectively used for three or more rods of different diameters.

104:指形夾具 104: Finger clamp

105:把持部 105:Handling part

105a:截頭圓錐狀開口 105a: truncated cone-shaped opening

105b:連結部 105b: Connection part

105c:圓筒狀空間 105c: Cylindrical space

105f:凸緣部 105f: flange

110:夾具接頭 110: Clamp connector

111:固定構件 111:Fixed components

111a:前方開口部 111a: Front opening

112:轉動構件 112: Rotating component

112a:中空圓筒部 112a: Hollow cylindrical part

112f:凸緣部 112f: flange

113:軸構件 113: Shaft components

114:銷 114: Sales

115:後端擴大部 115: Back-end expansion

116:圓環狀肩部 116: Ring-shaped shoulder

117:鋼珠 117: Steel Ball

118:鋼珠支持部 118:Steel ball support part

119:母螺牙部 119: Female screw thread

130:指形構件 130: Finger-shaped component

131:彈性體 131: Elastic body

131a:截頭圓錐狀開口 131a: truncated cone-shaped opening

131c:內部空間 131c:Interior space

132:金屬體 132:Metal body

135:區域(收容轉動體的區域) 135: Area (area for accommodating rotating objects)

Claims (4)

一種棒材供給機的棒材饋送裝置,係可轉動地支持在切削加工時會轉動的棒材,該棒材饋送裝置係具備:把持棒材的後端部之棒材把持構件;在饋送棒材時前進之桿部;以及隔設於前述棒材把持構件與桿部之間,將前述棒材把持構件支持成可轉動之連結構件;其中,前述連結構件係具有:一體地支持前述棒材把持構件之轉動部、連結至前述桿部之固定部、以及將前述轉動部與前述固定部連結成可相對轉動之轉動手段;前述棒材把持構件係具有:把持部及指形構件;該把持部係具有可接受棒材的後端部的插入之中空部;該指形構件係可轉動地收容於該把持部內且把持前述棒材的後端部;前述指形構件係具有:筒狀的彈性體、以及包覆該筒狀的彈性體之筒狀的金屬體;前述筒狀的彈性體為圓筒狀的彈性體;前述筒狀的金屬體為圓筒狀的金屬體。 A bar feeding device of a bar feeding machine is used to rotatably support a bar that rotates during cutting processing. The bar feeding device is equipped with: a bar holding member that holds the rear end of the bar; a rod that advances when feeding the bar; and a connecting member that is arranged between the bar holding member and the rod and supports the bar holding member to be rotatable; wherein the connecting member has: a rotating part that integrally supports the bar holding member, a fixed part connected to the rod, and a connecting member that connects the rotating part The rotating means connected to the aforementioned fixed part to be relatively rotatable; the aforementioned rod holding member comprises: a holding part and a finger-shaped member; the holding part comprises a hollow part that can receive the rear end of the rod; the finger-shaped member is rotatably accommodated in the holding part and holds the rear end of the aforementioned rod; the aforementioned finger-shaped member comprises: a cylindrical elastic body and a cylindrical metal body covering the cylindrical elastic body; the aforementioned cylindrical elastic body is a cylindrical elastic body; the aforementioned cylindrical metal body is a cylindrical metal body. 一種棒材供給機的棒材饋送裝置,係可轉動地支持在切削加工時會轉動的第一棒材或第二棒材,該棒材饋送裝置係具備:把持具有第一直徑之該第一棒材或具有與前述第一直徑不同的第二直徑之該第二棒材的後端部之棒材把持構件;在饋送棒材時前進之桿部;以及隔設於前述棒材把持構件與桿部之間,將前述棒材把持構件支持成可轉動 之連結構件;其中,前述連結構件係具有:一體地支持前述棒材把持構件之轉動部、連結至前述桿部之固定部、以及將前述轉動部與前述固定部連結成可相對轉動之轉動手段;前述棒材把持構件係其有:把持部、第一指形構件及第二指形構件;該把持部係具有可接受第一棒材或第二棒材的後端部的插入之中空部;該第一指形構件係可轉動地收容於該把持部內且可把持前述第一棒材的後端部;該第二指形構件係可轉動地收容於該把持部內且可把持前述第二棒材的後端部;前述第一指形構件及前述第二指形構件各自具有筒狀的金屬體,各筒狀的金屬體係設有:沿著與軸線方向垂直之方向貫通之貫通孔、以及從該貫通孔延伸到軸線方向的前方端之狹縫孔。 A bar feeding device of a bar feeding machine is used to rotatably support a first bar or a second bar that rotates during cutting. The bar feeding device comprises: a bar holding member that holds the rear end of the first bar having a first diameter or the second bar having a second diameter different from the first diameter; a rod that advances when feeding the bar; and a connecting member that is arranged between the bar holding member and the rod and supports the bar holding member so that it can rotate; wherein the connecting member comprises: a rotating part that integrally supports the bar holding member, a fixed part that is connected to the rod, and a connecting member that connects the rotating part and the fixed part so that they can rotate relative to each other. The rod holding member comprises: a holding portion, a first finger-shaped member and a second finger-shaped member; the holding portion has a hollow portion that can receive the rear end of the first rod or the second rod; the first finger-shaped member is rotatably received in the holding portion and can hold the rear end of the first rod; the second finger-shaped member is rotatably received in the holding portion and can hold the rear end of the second rod; the first finger-shaped member and the second finger-shaped member each have a cylindrical metal body, and each cylindrical metal body is provided with: a through hole that penetrates in a direction perpendicular to the axial direction, and a slit hole extending from the through hole to the front end in the axial direction. 一種棒材供給機的棒材饋送裝置,係可轉動地支持在切削加工時會轉動的第一棒材或第二棒材,該棒材饋送裝置係具備:把持具有第一直徑之該第一棒材或具有與前述第一直徑不同的第二直徑之該第二棒材的後端部之棒材把持構件;在饋送棒材時前進之桿部;以及隔設於前述棒材把持構件與桿部之間,將前述棒材把持構件支持成可轉動之連結構件;其中,前述連結構件係具有:一體地支持前述棒材把持構件之轉動部、連結至前述桿部之固定部、以及將前述轉動部與前述固定部連結成可相對轉動之轉動手段;前述棒材把持構件係具有:把持部、第一指形構件及第二指形構件;該把持部係具有可接受第一棒材或第二棒材的後端部的插入之中空部;該第一指形構件係可轉動地收容於該把持部內且可把持前述第一棒材的後端部;該第二指形 構件係可轉動地收容於該把持部內且可把持前述第二棒材的後端部;前述第一指形構件及前述第二指形構件各自具有:筒狀的彈性體、以及包覆該筒狀的彈性體之筒狀的金屬體。 A bar feeding device of a bar feeding machine is used to rotatably support a first bar or a second bar that rotates during cutting processing. The bar feeding device is equipped with: a bar holding member that holds the rear end of the first bar having a first diameter or the second bar having a second diameter different from the first diameter; a rod that advances when feeding the bar; and a connecting member that is arranged between the bar holding member and the rod and supports the bar holding member to be rotatable; wherein the connecting member has: a rotating part that integrally supports the bar holding member, a fixed part connected to the rod, and a connecting member that connects the rotating part to the rod. The movable part is connected to the aforementioned fixed part to form a rotating means that can rotate relatively; the aforementioned rod holding member comprises: a holding part, a first finger-shaped member and a second finger-shaped member; the holding part has a hollow part that can accept the insertion of the rear end of the first rod or the second rod; the first finger-shaped member is rotatably accommodated in the holding part and can hold the rear end of the aforementioned first rod; the second finger-shaped member is rotatably accommodated in the holding part and can hold the rear end of the aforementioned second rod; the aforementioned first finger-shaped member and the aforementioned second finger-shaped member each comprise: a cylindrical elastic body and a cylindrical metal body covering the cylindrical elastic body. 一種棒材供給機的棒材饋送裝置,係可轉動地支持在切削加工時會轉動的第一棒材或第二棒材,該棒材饋送裝置係具備:把持具有第一直徑之該第一棒材或具有與前述第一直徑不同的第二直徑之該第二棒材的後端部之棒材把持構件;在饋送棒材時前進之桿部;以及隔設於前述棒材把持構件與桿部之間,將前述棒材把持構件支持成可轉動之連結構件;其中,前述連結構件係具有:一體地支持前述棒材把持構件之轉動部、連結至前述桿部之固定部、以及將前述轉動部與前述固定部連結成可相對轉動之轉動手段;前述棒材把持構件係具有:把持部、第一指形構件及第二指形構件;該把持部係具有可接受第一棒材或第二棒材的後端部的插入之中空部;該第一指形構件係可轉動地收容於該把持部內且可把持前述第一棒材的後端部;該第二指形構件係可轉動地收容於該把持部內且可把持前述第二棒材的後端部;前述第一指形構件及前述第二指形構件中之一者係具有筒狀的金屬體,該筒狀的金屬體係設有:沿著與軸線方向垂直之方向貫通之貫通孔、以及從該貫通孔延伸到軸線方向的前方端之狹縫孔;前述第一指形構件及前述第二指形構件中之另一者係具有:筒狀的彈性體、以及包覆該筒狀的彈性體之筒狀的金屬體。 A bar feeding device of a bar feeding machine is used to rotatably support a first bar or a second bar that rotates during cutting processing. The bar feeding device is equipped with: a bar holding member that holds the rear end of the first bar having a first diameter or the second bar having a second diameter different from the first diameter; a rod that advances when feeding the bar; and a connecting member that is arranged between the bar holding member and the rod and supports the bar holding member so that it can rotate; wherein the connecting member has: a rotating part that integrally supports the bar holding member, a fixed part connected to the rod, and a rotating means that connects the rotating part and the fixed part so that they can rotate relative to each other; the bar holding member has: a holding part, a first finger-shaped structure The first finger-shaped member and the second finger-shaped member; the holding portion has a hollow portion that can accept the insertion of the rear end of the first rod or the second rod; the first finger-shaped member is rotatably accommodated in the holding portion and can hold the rear end of the aforementioned first rod; the second finger-shaped member is rotatably accommodated in the holding portion and can hold the rear end of the aforementioned second rod; one of the aforementioned first finger-shaped member and the aforementioned second finger-shaped member has a cylindrical metal body, and the cylindrical metal body is provided with: a through hole passing through in a direction perpendicular to the axial direction, and a slit hole extending from the through hole to the front end in the axial direction; the other of the aforementioned first finger-shaped member and the aforementioned second finger-shaped member has: a cylindrical elastic body, and a cylindrical metal body covering the cylindrical elastic body.
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