201134739 J 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種使工件在預定位置停止之止動裝置。 【先前技術】 在使用輸送帶之生產設備中’係使於輸送帶上移動之工件 暫時停止於預定位置而可進行預定作業。在作業結束後工件再 次沿著輸送帶而移動。因此，為了使工件暫時停止於預定位 置，止動裝置而被廣泛地使用。 係設置有用以與減震器連動以使工件制止於 槓桿（st0pperlever)。止動槓桿，係可與桿一 止動健，健備：㈣筒狀之域（b吻）；以及在相 子㈣主體而旋轉受限之狀態下直線移動於主體内的桿 Γ)。在桿中㈣有減震11 (―蜂在桿之前端部，201134739 J VI. Description of the Invention: [Technical Field] The present invention relates to a stopper for stopping a workpiece at a predetermined position. [Prior Art] In a production apparatus using a conveyor belt, a predetermined operation can be performed by temporarily stopping a workpiece moving on a conveyor belt at a predetermined position. The workpiece moves again along the conveyor belt after the end of the job. Therefore, in order to temporarily stop the workpiece at a predetermined position, the stopper is widely used. The system is set up to interlock with the shock absorber to stop the workpiece from the lever (st0pperlever). The stop lever can be moved with the lever, and it is healthy: (4) a cylindrical field (b kiss); and a rod that moves linearly in the main body in a state where the phase (4) body is restricted in rotation. In the rod (4) there is shock absorption 11 (the bee is at the end of the rod,
201134739 螺旋軸可透過齒輪而連結。然後，當 進給螺旋轴就會透過齒輪而進行旋轉運動機之，轉轴轉時， 之旌鐘，丁灰轉運動。错由該進給螺旋轴 之釦轉運動，滾珠螺捍就會相對於進 而使操作轴可進行直線移動。結果，被卜後退因此 的被動部财進行直線移動。被^购飾之前端部 然而，上述公報之致動器中，為 ::二 操作轴之直線移動距離相應的長度。 由於在It操作軸之前端裝設有被動 器在操作輔之轴方向的長度尺寸大型化的問題"有使致動 【發明内容】 之旋目的係在於提供—種不會大魏而可利用馬達 疋轉運動使桿進行直__止動袭置。 _ ί 了 ^上述目的，依據本發明之一態樣，可提供一種止 置係具備：呈筒狀之主體；桿，其係以相對於 β、退之方式设置之呈筒狀的桿，且在其周面具有至少二 :凸輪槽’止動部，其細可轉動之方式支胁桿之前端部， 且工件1 亭止;緩衝機構，其係内置於桿之前端部，並 、士％ _£動部虹件停止時之衝擊；旋轉構件，其係容 ίΓΓ’ί且藉由馬達而旋轉，且以可進退之方式容納有 干 -個凸輪從動件，其係在旋轉構件中以從斑桿之 周面對向敝购向旋轉構件之巾钟線突出的方式設置，並 且卡。於凸輪槽，且伴隨旋轉構件之旋轉，凸輪從動件會沿著 6 201134739 凸輪槽而導引，藉此，桿可在旋轉構件内规地移動。 【實施方式】 以下’^：~、® 1至@ 5 本發明—實施形態之止動裝置。 如圖1所*止動裝置1()係具傷呈筒狀之主體u。在主體11 係以沿著域Π之長度方向延伸的方式職有呈獅狀之容 納孔12。在容納孔12内之前端係設置有呈環狀之桿蓋13。又， 在主體11之基端係形成有貫通孔lla。 、j主體11之前端面係、設置有凸緣14，並且在凸緣14形 成有貝通孔14a。在凸緣14之前端面係設置有沿著主體u之 長度方向延伸的支柱15。在支柱15之前端係裝設有限制環 15&。又’在主體11之基端係安褒有可正反轉之馬達18。馬 達18之旋轉軸19，係延伸至到達主體Π之貫通孔lla内為 止。並且’在容納孔12内係容納有旋轉構件2卜 如圖2所示，旋轉構件21係具備：在前端開口並且在基 端閉塞之呈現蘭筒狀的本體部22。在本體部22之前端面， 係有-對延設部23設置在本體部22之徑向上之相對向的位 置。又，在各延設部23之前端部内面，係以可旋轉之方式設 置有凸輪勸件24，該凸輪從崎24伽對於延設部23之 延設方向正交，且軸轉構件21之巾心、概突出。各凸輪 從動件24叙置於旋轉構件中之彼此姉向的位置。 在本體部22之基端面，係設置有沿著本體部22之中心轴 伸的連結部25。錢結部25之巾央部，係形成有可供馬 的疑轉軸19之前端部嵌合的喪合凹部仏。連結部μ 201134739 與旋轉軸19，係在旋_ 19之前端部被嵌合於齡凹部25a _狀態下藉由未圖示之螺釘固定而—體地連結。然後， 藉由馬達18之驅動，旋轉轴19之旋轉運動會傳遞至連結部 25 ’而旋轉構件21就可在容納孔12内旋轉。 ，又，林體部22外周狄—部分絲著财向遍及全周 形成有裝設凹部22a ’並且可供耐磨護環(卿㈣裝 設於裝設凹部22a。在-對延設部23之外周面之接近本體部 22的位置，係沿著周方向形成有裝設凹部仏，以供耐磨護環 23b裝設其中(裝設凹部23a)。 乂 然後，如圖i所示，在旋轉構件21容納於容納孔12内的 狀態下，耐磨護環22b、23b之外周面全體抵接於容納孔12之 内周面。藉此，财磨護環22b、23b係擔任作為對旋轉構件Μ 之定心用軸承的任務。因而，即使旋轉構件21旋轉而對旋轉 構件21施加偏心荷重，亦可藉由該耐磨護環创、现抑制旋 轉構件21偏心。 在旋轉構件21射進退地容納有構成呈筒狀的桿3ι。 又，該桿31係透過凸緣14之貫通孔⑷而可相對於主體u 進退。桿31内部係設置有油麼式之減震器％作為緩衝機構。 減震器35具備··内部具有未圖示之孔口（〇rifice)的氣缸37 ; ，及可進退地容納於氣缸37内的吸收棒（也〇齡_36。在 氣缸37内係填充有動作油。吸收棒36之前端’係成為經常從 氣紅37突出的狀態。 又，在桿31之前端，係設置有使被搬運於輸送帶c (參照 圖5)上之工件W(參照圖5)停止的止動部41。在桿31之前端 8 201134739 側的外周面係形成有公螺紋3la。該公螺紋：3ia，係藉由與在 止動部41之支樓體42形成的容納凹部42a之母螺紋(未圖示) 螺^ ’而將桿31與支樓體42 -體化。在支撐體42之一側， 係突設有具有插通孔43a的插通部43。插通孔43a中係插通有 支柱15。 ” 姐％上，你以巳灭吸收棒36之方式彼此相對 二f設有—對安以44。在一對安裝片44之間係水平地支 二由45。支轴45係以可在預定角度範圍内轉動之方式支撐 :=件㈣蝴轉46。止動槓桿46魏設於吸收棒％ 又。^軸桿46之前端，射躺地支虹件承接輥47。 ，動才貝桿46之基端’係可抵接於吸收棒36。 凸輪之基端侧的外周面，係形成有可供 之前端係在桿“==二個凸輪槽32。各凸_ 面朝外部開放。然後，藉由從：：f2端係從f31之基端 動件24插入於凸3 "之基端將各凸輪從 凸輪槽… 槽内，各凸輪從動件24就可卡合於各 圖4係顯示凸輪槽％之 一 係以描緣變形正弦曲線 辭之和，凸輪槽32， 即，凸輪槽幻，係以近似於正;方式形成。亦 件24係在凸輪槽32内，位於 式/成。凸輪從動 態下，桿31會成n、<彡正錢線L之起财1的狀 體π之術=::3 11的狀態。在桿31沒入於主 而凸輪從動件24會 =轉’娜構件2丨就會正轉， 者凸輪槽32從凸輪槽32之起點p】朝向 201134739 終點P3導引。 在此，由於在插通部43之插通孔43a係插通有支柱i5， 所以桿3卜係在相對於主體n旋轉運動受限之狀態下朝突出 方向直線移動。另外，藉由桿31朝突出方向直線移動，止動 部41亦會朝突出方向移動。此時，藉由插通部43之上面抵接 於限制環15a，而可限制插通# « 15 各凸輪從動件24，係在所誠的凸輪槽32内，從存在於 變形正弦曲線L之起點P1的狀態下，朝向終點p3，使各凸輪 從動件24沿著所對應的凸輪槽32而導引桿。此時，桿w之 直線移動的加速度，會在起點P1至中間點P2之噴慢地增 加。然後’各凸輪從動件24在所對應的凸輪槽32内，通過變 形正弦曲線L之起點P1與終點p3之間的中間點p2時，桿31 2線移動範圍的加速度會變成最大。並1桿31之直線移 、加速度’係、在中間點P2至終點p3之間緩慢地減少。 就上述止動裝置10之動作加以說明。 止動裝置ω，係掷31沒人於主體u之狀態下，^ =1位於靠近輸送帶c下方的方式設置。^ 了^_ 2帶=駐件w停止，科，在桿31沒人於主體n 二下’錯由使馬達18正轉，旋轉構件21就會正轉。如也 輪從鱗24齡沿著所職的凸難 相胁綠丨1錢料較_雜下會-邊在從主 犬出=向上保持1的加速度—邊進行直線移動。 声—ΐΐ該桿31之直線移動，止_41 —邊保持一定的加 又、緩慢地上升之後，會以最大加速度上升。之後，桿 10 201134739 突出方向直線移動。然後，如圖5所 •的搬_上時會 == 部41之上升會緩慢地停止。 I成〇而止動 在雜態下，當工件w被搬運於輸送 件承接镜47，並且止動槓桿心： =轉時’止動槓桿46之基端就會抵接於吸收棒36, 收ΓΓ棒’下尊壓。#吸㈣36_下方鍾時，吸 +就會沒入於氣缸37内。藉由吸收棒36向該氣缸37沒 入’且利用動作油流通至孔口時的阻抗，就可緩和工件w抵 接於工件承接輥47時的衝擊。 一 、，其次，為了使輸送帶c上之工件w通過，藉由使馬達18 逆轉’娜構件21就會逆轉。如此，各凸輪從動件％就合沿 著所對應的凸輪槽32而導引，並且在桿31相對於主體u曰之 旋轉運動受限陳態下—邊簡—定之加速度—邊朝沒入方 向直線移動。 隨著該桿31之直線移動，止動部41 一邊保持一定之加速 度一邊緩慢地下降之後，會以最大加速度下降。之後，桿3ι 係-邊緩慢地減速-邊朝沒人方向直線移動 '然後，當止動部 41比輸送帶C還更位於下方時，桿31之加速度就會變成〇， 且止動部41之下降會緩慢地停止。結果，工件w不會在輸送 帶C上停止，而會通過止動裝置1〇之上方。 在上述實施形態中可獲得以下效果。 (1)依馬達18而旋轉的旋轉構件21係形成筒狀。在旋轉 201134739201134739 The screw shaft can be connected through the gear. Then, when the feed screw shaft passes through the gear, the rotary motion machine is rotated, and when the shaft rotates, the 旌 clock and the ash turn motion. The wrong movement of the feed screw shaft causes the ball screw to move linearly relative to the operating shaft. As a result, the passive part of the money that has been retreated is moved linearly. Before the end of the decoration, however, in the actuator of the above publication, the linear movement distance of the ::two operating shaft is the corresponding length. The problem that the length dimension of the actuator in the direction of the auxiliary axis is increased in the front end of the It operating shaft is "there is a problem that the purpose of the invention is to provide a kind of use." The motor twirling motion causes the rod to be straight __stop. According to one aspect of the present invention, a stop system includes: a tubular body; a rod which is a cylindrical rod disposed in a manner relative to β and retreat, and It has at least two on its circumferential surface: a cam groove 'stop portion, which supports the front end of the rod in a finely rotatable manner, and the workpiece 1 is stopped; the buffer mechanism is built in the front end of the rod, and The impact of the moving part of the moving part is stopped; the rotating member is coupled and rotated by the motor, and accommodates the dry cam follower in a retractable manner, which is attached to the rotating member It is set in such a manner that it protrudes from the circumference of the spot to the direction of the towel of the rotating member, and is stuck. In the cam groove, and with the rotation of the rotating member, the cam follower is guided along the 6 201134739 cam groove, whereby the rod can be moved within the rotating member. [Embodiment] The following "^:~, ® 1 to @ 5" of the present invention - the stopper device of the embodiment. As shown in Fig. 1, the stopper device 1 () is a main body u having a cylindrical shape. The main body 11 is provided with a lion-like aperture 12 in such a manner as to extend along the length of the field. An end of the receiving hole 12 is provided with an annular rod cover 13 at the end. Further, a through hole 11a is formed at the base end of the main body 11. The front end of the main body 11 is provided with a flange 14, and a flange through hole 14a is formed in the flange 14. A front end portion of the flange 14 is provided with a stay 15 extending in the longitudinal direction of the main body u. A restraining ring 15& is attached to the front end of the strut 15. Further, at the base end of the main body 11, a motor 18 which can be reversed and reversed is mounted. The rotating shaft 19 of the motor 18 extends into the through hole 11a of the main body. Further, the rotating member 2 is housed in the accommodating hole 12. As shown in Fig. 2, the rotating member 21 is provided with a body portion 22 which is open at the front end and is closed at the base end. On the front end surface of the main body portion 22, the pair of extension portions 23 are provided at positions facing each other in the radial direction of the main body portion 22. Further, on the inner surface of the end portion of each of the extending portions 23, a cam member 24 is rotatably provided, and the cam is orthogonal to the extending direction of the extending portion 23 from the saddle 24, and the shaft rotating member 21 is The heart of the towel is outstanding. Each of the cam followers 24 is placed at a position facing each other in the rotating member. At the base end surface of the body portion 22, a coupling portion 25 extending along the center of the body portion 22 is provided. The central portion of the towel of the money knot portion 25 is formed with a funnel recessed portion that can be fitted to the front end of the suspected shaft 19 of the horse. The connecting portion μ 201134739 and the rotating shaft 19 are integrally coupled to each other by the screw (not shown) in a state in which the end portion of the rotating shaft 19 is fitted to the aged recess portion 25a. Then, by the driving of the motor 18, the rotational motion of the rotary shaft 19 is transmitted to the joint portion 25' and the rotary member 21 is rotatable in the accommodating hole 12. Further, the outer portion of the forest body portion 22 is partially formed with the recessed portion 22a' and the wearable retaining ring (the fourth (4) is mounted on the mounting recess 22a. The position of the outer peripheral surface close to the main body portion 22 is formed with a recessed portion 沿着 in the circumferential direction for the wear-resistant guard ring 23b to be installed therein (the recess portion 23a is provided). Then, as shown in FIG. In a state in which the rotating member 21 is housed in the accommodating hole 12, the entire outer peripheral surfaces of the wear-resistant retaining rings 22b and 23b abut against the inner peripheral surface of the accommodating hole 12. Thereby, the sharpening rings 22b, 23b serve as a pair of rotations. The task of the centering bearing of the member 。. Therefore, even if the rotating member 21 is rotated to apply an eccentric load to the rotating member 21, the rotating member 21 can be suppressed from being eccentric by the wear-resistant retaining ring. The rod 31 is formed in a cylindrical shape. The rod 31 is retractable relative to the main body u through the through hole (4) of the flange 14. The inside of the rod 31 is provided with a shock absorber of the type of oil as a buffer mechanism. The damper 35 includes a cylinder 37 having an opening (not shown) inside; And an absorption rod that is accommodated in the air cylinder 37 in a retractable manner (also 〇36. The hydraulic oil is filled in the cylinder 37. The front end of the absorption rod 36 is in a state in which it is often protruded from the gas red 37. The front end of the rod 31 is provided with a stopper portion 41 for stopping the workpiece W (see Fig. 5) conveyed on the conveyor belt c (see Fig. 5). The outer peripheral surface on the side of the front end 8 201134739 of the rod 31 is formed. The male thread 3a. The male thread: 3ia, the rod 31 and the branch body 42 are screwed by a female thread (not shown) of the accommodating recess 42a formed in the branch body 42 of the stopper portion 41. On one side of the support body 42, an insertion portion 43 having an insertion hole 43a is formed in the protrusion. The insertion hole 15 is inserted into the insertion hole 15. The sister is used to annihilate the absorption rod 36. The manner is opposite to each other. The pair is provided with a pair of 44. The pair of mounting pieces 44 are horizontally supported by 45. The support shaft 45 is supported in such a manner as to be rotatable within a predetermined angle range: = (4) 46. The stop lever 46 is disposed at the front end of the absorption rod. The front end of the shaft 46 is mounted to support the rainbow receiving roller 47. The base end of the movable rod 46 is detachable. The outer peripheral surface of the base end side of the cam is formed with a front end attached to the rod "==two cam grooves 32. Each convex_face is open to the outside. Then, by::f2 end The base end moving member 24 from the f31 is inserted into the base end of the convex 3 " the cams are taken from the cam grooves... The cam followers 24 are engageable in each of the figures 4 showing the cam groove % The cam groove 32, that is, the cam groove, is formed in a manner similar to positive; the piece 24 is in the cam groove 32, and is located in the type/in. 31 will become n, < 彡 钱 钱 钱 之 之 之 之 起 1 = = = = = = = = =: When the lever 31 is immersed in the main and the cam follower 24 will rotate, the cam member 32 will be rotated forward, and the cam groove 32 will be guided from the starting point p] of the cam groove 32 toward the end point P3 of 201134739. Here, since the stay i5 is inserted into the insertion hole 43a of the insertion portion 43, the rod 3 is linearly moved in the protruding direction in a state where the rotational movement with respect to the main body n is restricted. Further, the rod 31 moves linearly in the protruding direction, and the stopper portion 41 also moves in the protruding direction. At this time, by the abutting portion of the insertion portion 43 abutting against the restriction ring 15a, it is possible to restrict the insertion of the ## 15 cam followers 24 in the cam groove 32, from the deformation sinusoid L In the state of the starting point P1, the cam followers 24 are guided along the corresponding cam grooves 32 toward the end point p3. At this time, the acceleration of the linear movement of the rod w increases slowly from the starting point P1 to the intermediate point P2. Then, when the respective cam followers 24 are deformed in the corresponding cam grooves 32 by the intermediate point p2 between the start point P1 and the end point p3 of the sinusoidal curve L, the acceleration of the linear movement range of the rod 31 2 becomes maximum. And the linear movement of the one shot 31, the acceleration 'system, slowly decreases between the intermediate point P2 and the end point p3. The operation of the above-described stopper device 10 will be described. The stopper ω is set such that no one is in the state of the main body u, and =1 is located near the conveyor belt c. ^ ^ 2 2 belt = station w stop, section, no one in the rod 31 under the main body n wrong by the motor 18 forward rotation, the rotating member 21 will be forward. For example, it is also possible to move straight from the scales of the 24th age along the position of the squad, and the green scorpion 1 is more likely to be moved in a straight line from the main dog. Sound - 直线 The linear movement of the rod 31, _41 - while maintaining a certain increase, and slowly rising, will rise at the maximum acceleration. After that, the rod 10 201134739 protrudes in a straight line. Then, as shown in Fig. 5, the movement of the upper part == the rise of the part 41 will be stopped slowly. I become a stop and stop in the miscellaneous state, when the workpiece w is transported to the transport member receiving mirror 47, and the lever lever: = turn, the base end of the stop lever 46 abuts against the absorption rod 36, ΓΓ ' 'under the pressure. #吸(四) 36_ When the clock is below, the suction + will not enter the cylinder 37. When the absorption rod 36 is immersed in the cylinder 37 and the impedance of the hydraulic oil flows to the orifice, the impact when the workpiece w abuts against the workpiece receiving roller 47 can be alleviated. First, in order to pass the workpiece w on the conveyor belt c, the motor 18 is reversed by reversing the motor member 21. In this way, each of the cam followers is guided along the corresponding cam groove 32, and the rotational movement of the rod 31 relative to the main body u 受限 is limited - the side is simply fixed - the side is immersed The direction moves in a straight line. As the linear movement of the rod 31 moves, the stopper portion 41 slowly descends while maintaining a certain degree of acceleration, and then decreases at the maximum acceleration. Thereafter, the rod 3ι is slowly decelerated - linearly moving toward the direction of no one. Then, when the stopper portion 41 is located below the conveyor belt C, the acceleration of the rod 31 becomes 〇, and the stopper portion 41 The decline will stop slowly. As a result, the workpiece w does not stop on the conveyor belt C but passes over the stopper 1 . In the above embodiment, the following effects can be obtained. (1) The rotating member 21 that rotates in accordance with the motor 18 is formed in a tubular shape. In rotation 201134739
=3=1 桿31。然後，在桿31之外周面形成有二個 =缺轉構件21設置有一對凸輪從動件H 分別卡合於凸輪槽32 ’並且分別沿著凸輪枰 所對應的凸輪;32== 内直结她m 列錯此’可使才干31在旋轉構件21 =動。因而，比起如先前技術在依馬達而旋轉的 f由之外側配設有呈筒狀之猶㈣情況，由於样明可將域 =5内置於相對於旋轉構件21内部進退的桿31二 袭置1G之長度尺寸不會大型化。結果，在止轉置 =她的情況下’可利用馬達18之旋轉運動使桿31直 (2)在旋轉構件21上，係有一對凸輪從動件 此=向的位置。因而’比起例如在旋轉構件21設置有= 動件24，且藉由旋轉構件21旋轉，—個凸輪從動件^ :者凸輪槽32而導引並使桿31直線移動的情況，較難 凸輪從動件24與凸輪槽32之間發生勾住現象。 (3) ΰ輪槽32,係以猶變形正弦曲線L之方式形成。亦 如’ f輪槽32，係以近似於正弦曲線之方式形成。因而，例 ，當凸輪從動件24在凸輪槽32内，從位於變形正弦曲線乙 之起點P1的狀態’朝向終點P3，使凸輪從鱗24沿著凸輪 ^ 32而導引時，桿31之直線移動的加速度，就會錢^ 至中間點P2之間緩慢地增加。又，加速度於凸輪從動件％ 中間點Ρ2至終點Ρ3之間缓慢地減少。因而，沒有必要為了 12 201134739 抑制桿31之直線移動的力/丨 馬、查Ν W 度 例如控制手段電性控制 馬達18之_速度。如此’可顧式地控制桿31之直線移動 的加速度，且可簡化桿31之速度控制機構。 本實施職中，桿31可_馬達18之旋轉運動而直 =;:’藉广_體厂堅氣缸供給或排_空氣 之，、矣漏而二二，31直線移動的情況，就沒有因動作流體 運動而使桿3!有效率地直線移動。j用馬達18之㈣ 另外，上述實施形態亦可變更如下。 方中’各凸輪槽32係以描轉形正弦曲線L之 描^/亚不限於此，例如，各6輪槽32亦可蝴會變形 梯形曲線或變形等速度曲線之方式形成。 置於m巾’魏轉餅21财—對凸輪絲件24設 24設置有置。並不限於此，例如，亦可在旋轉構件 ^個或二個以上的凸輪從動件24。 凸輪中’係藉由以描繪變形正弦曲線L之方式形成 ^而機械式地控制桿31之直線移動的加速度。並不 電性亦可藉由依控制手段控制馬達Μ之旋轉速度， 制杯31之直線移動的加速度。 例如震器35雖綱式，但是並不限於此， "式簡單說明】 ★圖係_本發明—實施形態之止動裝置的局部縱剖視圖； 201134739 =2圖係顯示第！圖之旋轉構件的側視圖； 圖係顯不第1圖之桿的側視圖； 第4圖係顯示第2圖之 第5圖係顯示藉由止動部而之凸輪槽的展開圖，·以及 裝置之局部縱剖視圖。 工件之搬運後的狀態之止動 【主要元件符號說明】 10止動裝置 11主體 11a、I4a貫通孔 12容納孔 13桿蓋 14凸緣 15支检 15a限制環 18馬達 19旋轉轴 21旋轉構件 22本體部 22a、23a裝設凹部 22b、23b耐磨護環 23延設部 24凸輪從動件 25連結部 201134739 25a嵌合凹部 31桿 31a公螺紋 32凸輪槽 35減震器 36吸收棒 37氣缸 41止動部 42支撐體 42a容納凹部 43插通部 43a插通孔 44安裝片 45支軸 46止動槓桿 47工件承接輥 C輸送帶 P1起點 P2中間點 P3終點 W工件=3=1 rod 31. Then, two outer peripheral surfaces of the rod 31 are formed. The missing member 21 is provided with a pair of cam followers H respectively engaged with the cam grooves 32' and respectively corresponding to the cams corresponding to the cams; 32 == inner straight knots Her m column is wrong 'this can make the talent 31 in the rotating member 21 = move. Therefore, in the case of f which is rotated by the motor as in the prior art, the outer side is provided with a cylindrical shape (four), and since the field = 5 can be built in the rod 31 which is advanced and retracted with respect to the inside of the rotating member 21 The length of the 1G is not enlarged. As a result, in the case of the rotation stop = her, the rotation of the motor 18 can be used to straighten the rod 31 (2) on the rotating member 21 with a pair of cam followers. Therefore, it is difficult to guide and move the rod 31 linearly, for example, when the rotating member 21 is provided with the movable member 24, and the rotating member 21 is rotated by the rotating member 21, and the cam follower 32 is linearly moved. A hook phenomenon occurs between the cam follower 24 and the cam groove 32. (3) The wheel groove 32 is formed in a manner in which the sinusoidal curve L is deformed. Also, the 'f wheel groove 32 is formed in a manner similar to a sinusoidal curve. Thus, for example, when the cam follower 24 is in the cam groove 32, from the state 'pointing toward the end point P3 of the starting point P1 of the deformed sine curve B, the cam is guided from the scale 24 along the cam 32, the rod 31 The acceleration of the linear movement will increase slowly between the money ^ and the intermediate point P2. Also, the acceleration is slowly reduced between the cam follower % intermediate point Ρ2 and the end point Ρ3. Therefore, it is not necessary to electrically control the speed of the motor 18 for the purpose of suppressing the linear movement of the rod 31 for the purpose of 12 201134739, for example, the control means. Thus, the acceleration of the linear movement of the lever 31 can be controlled, and the speed control mechanism of the lever 31 can be simplified. In this implementation, the rod 31 can be rotated by the motor 18 and straight =;: 'By _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The motion fluid moves to cause the rod 3! to move linearly efficiently. (4) of the motor 18 for j. Further, the above embodiment may be modified as follows. The description of each of the cam grooves 32 in the sinusoidal curve L is not limited thereto. For example, each of the six-grooves 32 may be formed by bending a trapezoidal curve or a deformation velocity curve. It is placed in the m towel 'Wei turn cake 21' - set to the cam wire 24 set 24. It is not limited thereto, and for example, one or two or more cam followers 24 may be rotated. In the cam, the acceleration of the linear movement of the rod 31 is mechanically controlled by forming a deformation sinusoid L. The non-electricity can also control the acceleration of the linear movement of the cup 31 by controlling the rotational speed of the motor cymbal according to the control means. For example, although the shock absorber 35 is of a general type, the present invention is not limited thereto, and a simple sectional view of the embodiment of the present invention is a partial longitudinal sectional view of the stopper device according to the present invention; 201134739 = 2 Side view of the rotating member of the figure; Fig. 4 is a side view showing the figure of Fig. 2; Fig. 4 is a view showing the development of the cam groove by the stopper, and A partial longitudinal section view of the device. Stop of the state after handling of the workpiece [Description of main components] 10 stopper 11 main body 11a, I4a through hole 12 accommodating hole 13 rod cover 14 flange 15 inspection 15a restriction ring 18 motor 19 rotation shaft 21 rotation member 22 The main body portions 22a, 23a are provided with recesses 22b, 23b wear ring 23 extension portion 24 cam follower 25 joint portion 201134739 25a fitting recess 31 rod 31a male thread 32 cam groove 35 shock absorber 36 absorption rod 37 cylinder 41 Stop portion 42 support body 42a accommodating recess 43 insertion portion 43a insertion hole 44 mounting piece 45 fulcrum 46 stop lever 47 workpiece receiving roller C conveyor belt P1 starting point P2 intermediate point P3 end point W workpiece