JP2006036422A - Work carrying device - Google Patents

Work carrying device Download PDF

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Publication number
JP2006036422A
JP2006036422A JP2004217064A JP2004217064A JP2006036422A JP 2006036422 A JP2006036422 A JP 2006036422A JP 2004217064 A JP2004217064 A JP 2004217064A JP 2004217064 A JP2004217064 A JP 2004217064A JP 2006036422 A JP2006036422 A JP 2006036422A
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Prior art keywords
groove
workpiece
work
suction
annular
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JP2004217064A
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JP4372634B2 (en
Inventor
Tomoyuki Kojima
島 智 幸 小
Seiji Yoshizawa
沢 誠 二 吉
Kenji Mizuno
野 顕 治 水
Akihisa Kodaira
平 晃 久 小
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Tokyo Weld Co Ltd
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Tokyo Weld Co Ltd
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Priority to JP2004217064A priority Critical patent/JP4372634B2/en
Priority to TW094120842A priority patent/TWI281903B/en
Priority to KR1020050059694A priority patent/KR100757025B1/en
Priority to CN200510084547A priority patent/CN100591595C/en
Publication of JP2006036422A publication Critical patent/JP2006036422A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/90—Devices for picking-up and depositing articles or materials
    • B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/80—Turntables carrying articles or materials to be transferred, e.g. combined with ploughs or scrapers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Specific Conveyance Elements (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a work carrying device capable of stabilizing variation of suction pressure within the enclosure of a work storage even if a work charging rate to a work storage groove varies. <P>SOLUTION: The work carrying device is equipped with a table base 2, and a carrying table 3 which is rotatably disposed on the table base 2 and provided with a plurality of work storage groove 4 on the outer peripheral edge. The work carrying device is provided with an annular negative pressure groove 9 on the surface of the carrying table 3 side of the table base 2, and a suction groove 5 on the surface of the table base 2 side of the carrying table 3. The table base 2 is provided with an annular atmosphere groove 11 communicating to the suction groove 5, and a first atmosphere introduction hole communicating to the atmosphere side. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は搬送テーブルに設けられた複数のワーク収納溝にワークを吸引保持して搬送するワーク搬送装置に係わり、とりわけワーク収納溝へのワークの装填率が変動してもワーク収納溝内の吸引圧力を安定化させることができるワーク搬送装置に関する。   The present invention relates to a workpiece transfer device that sucks and holds a workpiece in a plurality of workpiece storage grooves provided on a transfer table, and in particular, suction in the workpiece storage groove even if the loading rate of the workpiece into the workpiece storage groove varies. The present invention relates to a work transfer device capable of stabilizing pressure.

従来よりワーク（電子部品）を吸引しながら搬送するワーク搬送装置として、特開昭５４−１２６７１９、特開昭５８−１６９７１、特開平８−１３６４６３等に示すものが知られている。これらのワーク搬送装置は、複数のワークを同時に吸引して搬送するものである。   2. Description of the Related Art Conventionally, work conveying apparatuses that convey a work (electronic component) while sucking a work are disclosed in Japanese Patent Laid-Open Nos. 54-126719, 58-16971, and 8-136463. These workpiece conveyance devices are configured to simultaneously suck and convey a plurality of workpieces.

このようにワークを同時に複数吸引する装置において、近年のワークの高精度化に伴い、例えばワークの分類機であれば更に吸引対象個数が増加する。また、ワークの搬送途上でワークは測定され、その結果に基づき所定個所で多くのワークが排出される。したがってワーク搬送装置の吸引圧力の変動が大きくなることがある。以下、その吸引圧力の変動につき詳述する。   In the apparatus for simultaneously sucking a plurality of workpieces as described above, the number of objects to be sucked increases further in the case of a workpiece sorter, for example, with the recent high accuracy of workpieces. In addition, the workpiece is measured while the workpiece is being conveyed, and a large number of workpieces are discharged at predetermined locations based on the result. Therefore, fluctuations in the suction pressure of the work transfer device may increase. Hereinafter, the fluctuation of the suction pressure will be described in detail.

図５は従来のワーク搬送装置を示す部分断面図であり、図６は図５のワーク搬送装置のワーク収納溝内にワークを装填したときの、ワーク装填率に対する吸引圧力の変動を示したものである。   FIG. 5 is a partial cross-sectional view showing a conventional workpiece transfer device, and FIG. 6 shows the variation in suction pressure with respect to the workpiece loading rate when a workpiece is loaded into the workpiece storage groove of the workpiece transfer device of FIG. It is.

図５に示すように、ワーク搬送装置はテーブルベース２と、テーブルベース２上に回転自在に設けられ外周縁に複数のワーク収納溝４が設けられた搬送テーブル３とを備えている。テーブルベース２には、真空配管１４を介して真空発生源１４ａに連通する環状負圧溝９が設けられ、また搬送テーブル３にはワーク収納溝４と環状負圧溝９とを連通する吸引溝５が設けられている。   As shown in FIG. 5, the work transfer device includes a table base 2 and a transfer table 3 that is rotatably provided on the table base 2 and has a plurality of work storage grooves 4 on the outer periphery. The table base 2 is provided with an annular negative pressure groove 9 that communicates with the vacuum generation source 14 a via the vacuum pipe 14, and the conveying table 3 has a suction groove that communicates the workpiece storage groove 4 and the annular negative pressure groove 9. 5 is provided.

図５に示すように、環状負圧溝９はテーブルベース２に削設して設けられ、この環状負圧溝９は複数の吸引連通孔１０を介して負圧吸引手段である真空発生源１４ａに連通する真空配管１４に接続されている。   As shown in FIG. 5, the annular negative pressure groove 9 is cut and provided in the table base 2, and the annular negative pressure groove 9 is a vacuum generation source 14 a which is a negative pressure suction means via a plurality of suction communication holes 10. Is connected to a vacuum pipe 14 communicating with the.

図５に示すワーク搬送装置における環状負圧溝９内の吸引圧力ｐについて、図６により説明する。図６はワーク収納溝４にワークｗが全く装填されていない状態（装填率０％）から、全てのワーク収納溝４にワークｗが装填された状態（装填率１００％）に対応する環状負圧溝９内の吸引圧力ｐの一例を示したものである。   The suction pressure p in the annular negative pressure groove 9 in the workpiece transfer apparatus shown in FIG. 5 will be described with reference to FIG. FIG. 6 shows an annular negative from the state in which no workpiece w is loaded in the workpiece storage groove 4 (loading rate 0%) to the state in which the workpiece w is loaded in all workpiece storage grooves 4 (loading rate 100%). An example of the suction pressure p in the pressure groove 9 is shown.

ワーク収納溝４内にワークｗが全く装填されていない状態で吸引圧力をワークｗの吸引が可能な最低限の吸引圧力Ｐ1に設定すると、ワークｗの装填により空のワーク収納溝４が減少していった場合、吸引圧力Ｐが急激に上昇する。 If the suction pressure is set to the minimum suction pressure P 1 at which the workpiece w can be sucked when no workpiece w is loaded in the workpiece storage groove 4, the empty workpiece storage groove 4 is reduced by loading the workpiece w. In this case, the suction pressure P increases rapidly.

次に全てのワーク収納溝４にワークｗが装填されると、吸引圧力が負圧供給手段である真空発生源１４ａの供給能力又は負圧調整器により設定された最高負圧力Ｐ2に達し、最低負圧力Ｐ1と最高負圧力Ｐ2の差が例えば数倍となるような圧力変動が発生する。 Next, when the workpiece w is loaded into all of the work receiving groove 4 reaches the suction pressure is the maximum negative pressure P 2 set by the supply capacity or negative pressure regulator of the vacuum source 14a is a negative pressure supplying means, Pressure fluctuations occur such that the difference between the lowest negative pressure P 1 and the highest negative pressure P 2 is several times, for example.

このようにワーク装填率が増加して負圧力が急激に増加すると、ワーク収納溝４内においてワークｗの吸引力が増加し、排出部においてワーク収納溝４内のワークｗを確実に排出することができない。   Thus, when the workpiece loading rate increases and the negative pressure increases rapidly, the suction force of the workpiece w increases in the workpiece storage groove 4, and the workpiece w in the workpiece storage groove 4 is reliably discharged at the discharge portion. I can't.

一方、排出部において、最高負圧力Ｐ2でもワーク収納溝４内のワークｗが十分排出できるように例えば外力としてワークに向けて噴射する排出エア圧力を設定すると、最低負圧力Ｐ1近傍ではワーク収納溝４内においてワークｗの吸着力に比べ排出圧力が強すぎ、ワークを急激に跳ね飛ばしてワークｗを損傷させることがある。また、環状負圧溝９内の吸引圧力の変動により、搬送テーブル３とテーブルベース２との間の隙間の吸引力が大きく変わり、搬送テーブル３とテーブルベース２との間の摩擦が発生或は増大して、搬送テーブル３の回転が不安定となることもある。 On the other hand, if, for example, the discharge air pressure that is injected toward the workpiece as an external force is set so that the workpiece w in the workpiece storage groove 4 can be sufficiently discharged even at the maximum negative pressure P 2 , the discharge portion near the minimum negative pressure P 1 In the storage groove 4, the discharge pressure is too strong as compared with the adsorption force of the workpiece w, and the workpiece w may be jumped off and damaged. In addition, the suction force in the gap between the transfer table 3 and the table base 2 changes greatly due to fluctuations in the suction pressure in the annular negative pressure groove 9, and friction between the transfer table 3 and the table base 2 occurs or The rotation of the transfer table 3 may become unstable due to an increase.

本発明はこのような点を考慮してなされたものであり、ワークの装填および排出を行った場合でも、ワーク収納溝内の吸引圧力の変動を小さくすることができ、これにより安定した吸引圧力でワーク収納溝内にワークを吸引して装填することができ、このワークをワーク収納溝内に保持して搬送し、かつワーク収納溝から安定して排出することができるワーク搬送装置を提供することを目的とする。   The present invention has been made in consideration of such points, and even when a workpiece is loaded and discharged, fluctuations in the suction pressure in the workpiece storage groove can be reduced, thereby stabilizing the suction pressure. Provided is a workpiece transfer device that can suck and load a workpiece into the workpiece storage groove, transport the workpiece while holding the workpiece in the workpiece storage groove, and stably discharge the workpiece from the workpiece storage groove. For the purpose.

本発明はテーブルベースと、テーブルベース上に回転自在に配置され、外周縁に複数のワーク収納溝が設けられた搬送テーブルとを備え、テーブルベースの搬送テーブルに近接する面に、真空配管を介して真空発生源に連通する環状負圧溝が設けられ、搬送テーブルのテーブルベースに近接する面に各ワーク収納溝と環状負圧溝とを連通する吸引溝が設けられ、吸引溝に、大気側に連通する大気給気手段を設けたことを特徴とするワーク搬送装置である。   The present invention includes a table base and a transfer table rotatably arranged on the table base and provided with a plurality of work storage grooves on the outer peripheral edge, and a surface of the table base adjacent to the transfer table is provided with a vacuum pipe. An annular negative pressure groove that communicates with the vacuum generation source is provided, and a suction groove that communicates each workpiece storage groove and the annular negative pressure groove is provided on a surface close to the table base of the transfer table. An air supply means that communicates with the work is provided.

本発明は、大気給気手段は、テーブルベースに設けられ吸引溝と連通する環状大気溝と、環状大気溝と大気側とを連通する第１大気導入孔とを有することを特徴とするワーク搬送装置である。   According to the present invention, the atmospheric air supply means includes an annular atmospheric groove that is provided in the table base and communicates with the suction groove, and a first atmospheric introduction hole that communicates the annular atmospheric groove and the atmosphere side. Device.

本発明は、大気給気手段は、搬送テーブルに設けられ吸引溝と大気側とを連通する第２大気導入孔を有することを特徴とするワーク搬送装置である。   The present invention is the work transfer device, wherein the air supply means has a second air introduction hole provided in the transfer table and communicating the suction groove and the atmosphere side.

本発明は、大気給気手段は、真空配管に接続され、大気側に連通された大気導入管を有することを特徴とするワーク搬送装置である。   The present invention is a work transfer device in which the air supply means has an air introduction pipe connected to a vacuum pipe and communicated with the atmosphere side.

本発明は、大気導入管に流量調整手段を設けたことを特徴とするワーク搬送装置である。   The present invention is a work transfer device characterized in that a flow rate adjusting means is provided in the atmosphere introduction pipe.

以上のように本発明によれば、ワークの装填および排出に伴うワーク収納溝内の吸引圧力の変動を小さく安定化させることができる。このため安定した吸引力によりワーク収納溝内にワークを吸引して装填することができ、このワーク収納溝内にワークを保持して搬送し、かつワーク収納溝からワークを安定して排出することができる。   As described above, according to the present invention, the fluctuation of the suction pressure in the workpiece storage groove due to the loading and discharging of the workpiece can be reduced and stabilized. For this reason, a workpiece can be sucked and loaded into the workpiece storage groove with a stable suction force, and the workpiece can be held and transported in the workpiece storage groove, and the workpiece can be stably discharged from the workpiece storage groove. Can do.

以下、図面を参照して本発明の実施の形態について説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１および図２は本発明によるワーク搬送装置の一実施の形態を示す図である。   1 and 2 are views showing an embodiment of a workpiece transfer apparatus according to the present invention.

図１および図２に示すようにワーク搬送装置１はテーブルベース２と、テーブルベース２上に極くわずかな隙間を有し近接して回転自在に設けられ外周縁に複数のワーク収納溝４が設けられた搬送テーブル３とを備えている。   As shown in FIGS. 1 and 2, the workpiece transfer device 1 is provided with a table base 2 and a very small gap on the table base 2 so as to be rotatable in the vicinity, and a plurality of workpiece storage grooves 4 are formed on the outer peripheral edge. And a transport table 3 provided.

また、テーブルベース２のうち、搬送テーブル３に近接する面に環状負圧溝９が設けられている。この環状負圧溝９はテーブルベース２に設けられた複数の吸引連通孔１０に連通し、各吸引連通孔１０は真空配管１４を介して真空発生源１４ａに連通している。また、搬送テーブル３のうち、テーブルベース２に近接する面に、各ワーク収納溝４と環状負圧溝９とを連通する吸引溝５が設けられ、この吸引溝５によりワーク収納溝４内が負圧に保たれるようになっている。   An annular negative pressure groove 9 is provided on the surface of the table base 2 that is close to the transfer table 3. The annular negative pressure groove 9 communicates with a plurality of suction communication holes 10 provided in the table base 2, and each suction communication hole 10 communicates with a vacuum generation source 14 a via a vacuum pipe 14. In addition, a suction groove 5 that communicates each workpiece storage groove 4 and the annular negative pressure groove 9 is provided on a surface of the transfer table 3 that is close to the table base 2. The negative pressure is maintained.

吸引溝５は搬送テーブル３のワーク収納溝４から中心に向かって半径方向に延び、環状負圧溝９に連通した後、更に内側に向かって延びている。そして吸引溝５の内側端は、テーブルベース２に設けられた環状大気溝１１に連通している。この環状大気溝１１は、テーブルベース２を貫通する複数の第１大気導入孔１２を介して大気側に連通している。   The suction groove 5 extends in the radial direction from the work storage groove 4 of the transfer table 3 toward the center, communicates with the annular negative pressure groove 9, and then extends further inward. The inner end of the suction groove 5 communicates with an annular atmospheric groove 11 provided in the table base 2. The annular atmosphere groove 11 communicates with the atmosphere side through a plurality of first atmosphere introduction holes 12 penetrating the table base 2.

なお、環状大気溝１１と第１大気導入孔１２とによって大気吸気手段が構成される。   The annular air groove 11 and the first air introduction hole 12 constitute an air intake means.

図１に示すように、ワーク供給手段６ａによりワーク供給部６からワーク収納溝４に供給されたワークｗは、ワーク収納溝４内に吸引保持され、搬送テーブル３により回転搬送される過程で、測定部７において電気的特性が測定される。その後、ワーク収納溝４内のワークｗは、排出部８において電気的特性に応じた排出孔８ａから外方へ排出される。   As shown in FIG. 1, the workpiece w supplied from the workpiece supply unit 6 to the workpiece storage groove 4 by the workpiece supply unit 6 a is sucked and held in the workpiece storage groove 4 and is rotated and transferred by the transfer table 3. The measurement unit 7 measures electrical characteristics. Thereafter, the workpiece w in the workpiece storage groove 4 is discharged outward from the discharge hole 8a according to the electrical characteristics in the discharge portion 8.

上述のように搬送テーブル３に設けられた複数のワーク収納溝４は、各々吸引溝５を介して負圧供給手段である環状負圧溝９に連通し、かつ吸引溝５は、大気給気手段である環状大気溝１１に連通している。環状負圧溝９及び環状大気溝１１は、図２に示すようにテーブルベース２に削設され、円形の搬送テーブル３と同心をなす同心円の環状溝からなっている。   As described above, the plurality of workpiece storage grooves 4 provided in the transfer table 3 communicate with the annular negative pressure groove 9 which is a negative pressure supply means via the suction grooves 5, respectively. It communicates with the annular atmospheric groove 11 as means. As shown in FIG. 2, the annular negative pressure groove 9 and the annular atmospheric groove 11 are formed in a concentric annular groove that is formed on the table base 2 and is concentric with the circular transfer table 3.

このうち環状負圧溝９はテーブルベース２を貫通して設けられた複数の吸引連通孔１０に螺合された真空配管１４を介して真空発生源１４ａに接続され、大気吸気手段である環状大気溝１１はテーブルベース２を貫通して設けられた複数の第１大気導入孔１２により大気開放されている。   Among these, the annular negative pressure groove 9 is connected to a vacuum generation source 14a through a vacuum pipe 14 screwed into a plurality of suction communication holes 10 penetrating the table base 2, and an annular atmosphere serving as an air intake means. The groove 11 is opened to the atmosphere by a plurality of first air introduction holes 12 provided through the table base 2.

なお、吸引溝５は搬送テーブル３のテーブルベース２と対向する下面に、ワーク収納溝４毎に削設して設けられた微少断面の溝からなり、ワーク収納溝４から環状負圧溝９および環状大気溝１１に向かって半径方向に延びている。   The suction groove 5 is a groove having a small cross-section formed by cutting each work storage groove 4 on the lower surface of the transfer table 3 facing the table base 2, and the work storage groove 4 to the annular negative pressure groove 9 and It extends in the radial direction toward the annular atmospheric groove 11.

次にこのような構成からなる本実施の形態の作用について説明する。図１において、ワーク供給手段６ａからワーク供給部６に供給されたワークｗは搬送テーブル３のワーク収納溝４内に順次装填され、ワーク収納溝４内において環状負圧溝９に連通された吸引溝５の負圧に吸引されて保持される。その後、ワーク収納溝４内のワークｗは、搬送テーブル３の回転（矢印の方向）に伴って搬送される。   Next, the operation of the present embodiment having such a configuration will be described. In FIG. 1, the workpiece w supplied from the workpiece supply means 6 a to the workpiece supply unit 6 is sequentially loaded into the workpiece storage groove 4 of the transfer table 3, and the suction communicated with the annular negative pressure groove 9 in the workpiece storage groove 4. It is sucked and held by the negative pressure in the groove 5. Thereafter, the workpiece w in the workpiece storage groove 4 is conveyed along with the rotation (in the direction of the arrow) of the conveyance table 3.

その後、測定部７においてワーク収納溝４内のワークｗに対して電気的測定が行われ、この測定結果に基づいて、ワーク収納溝４内のワークｗは排出部８の排出孔８ａから外方へ排出される。   Thereafter, electrical measurement is performed on the workpiece w in the workpiece storage groove 4 in the measurement unit 7, and based on the measurement result, the workpiece w in the workpiece storage groove 4 moves outward from the discharge hole 8 a of the discharge unit 8. Is discharged.

次にこの間のワーク収納溝４内の圧力変動について説明する。搬送テーブル３のワーク収納溝４にワークｗが装填されていない状態では、吸引溝５の外側端はワーク収納溝４内において大気開放されており、内側端は環状大気溝１１に連通して概大気開放されている。図２に示すように、環状負圧溝９は、吸引溝５の大気開放されている外側端と内側端との間に位置しており、吸引連通孔１０に螺合された真空配管１４を介して環状負圧溝９内の空気が吸引され負圧化されるようになっている。このとき、複数の第１大気導入孔１２を介して大気開放された環状大気溝１１内の気圧はワーク収納溝４の大気圧に対してやや低くなる。また、吸引溝５により直線的に大気開放されているワーク収納溝４に対して、環状大気溝１１側の吸気方向は吸引溝５と直角方向となることに加え、第１大気導入孔１２は吸引溝５に比べ数が少く更に断面積がさほど大きくないため、ワーク収納溝４側の通気抵抗に対して環状大気溝１１側の通気抵抗が大きくなる。このため、環状負圧溝９には主にワーク収納溝４側から大気が吸気され、ワークｗがワーク収納溝４に吸引され易くなっている。   Next, the pressure fluctuation in the workpiece storage groove 4 during this period will be described. In a state in which the workpiece w is not loaded in the workpiece storage groove 4 of the transfer table 3, the outer end of the suction groove 5 is open to the atmosphere in the workpiece storage groove 4, and the inner end communicates with the annular atmospheric groove 11 and is approximately open. It is open to the atmosphere. As shown in FIG. 2, the annular negative pressure groove 9 is located between the outer end and the inner end of the suction groove 5 open to the atmosphere, and the vacuum pipe 14 screwed into the suction communication hole 10 is provided. The air in the annular negative pressure groove 9 is sucked through to be negative pressure. At this time, the atmospheric pressure in the annular atmospheric groove 11 opened to the atmosphere via the plurality of first atmospheric introduction holes 12 is slightly lower than the atmospheric pressure in the work storage groove 4. In addition to the workpiece storage groove 4 that is linearly open to the atmosphere by the suction groove 5, the intake direction on the annular atmosphere groove 11 side is a direction perpendicular to the suction groove 5, and the first atmosphere introduction hole 12 is Since the number of the suction grooves 5 is small and the cross-sectional area is not so large, the ventilation resistance on the annular atmospheric groove 11 side is larger than the ventilation resistance on the workpiece storage groove 4 side. For this reason, air is sucked into the annular negative pressure groove 9 mainly from the work storage groove 4 side, and the work w is easily sucked into the work storage groove 4.

搬送テーブル３のワーク収納溝４内にワークｗが吸引保持されると、ワーク収納溝４側の吸引溝５の外側端が閉塞され、大気流入が停止するが、環状大気溝１１側からの吸気が行われる為真空度の上昇が押えられ、環状負圧溝９内の負圧はワークｗが吸引保持される前の状態に比べ真空度が若干高い程度の状態に保たれる。従って、複数のワーク収納溝４へのワーク装填率の如何に拘わらず、大気導入孔１２の無い状態に比べワーク収納溝４内への吸引圧力を充分に安定化させる範囲に設定することができる。   When the workpiece w is sucked and held in the workpiece storage groove 4 of the transfer table 3, the outer end of the suction groove 5 on the workpiece storage groove 4 side is closed and the air inflow stops, but the intake from the annular atmosphere groove 11 side is stopped. Therefore, the increase in the degree of vacuum is suppressed, and the negative pressure in the annular negative pressure groove 9 is maintained in a state where the degree of vacuum is slightly higher than that before the work w is sucked and held. Therefore, regardless of the work loading rate in the plurality of work storage grooves 4, it is possible to set the suction pressure into the work storage grooves 4 to be sufficiently stabilized as compared with the state without the air introduction hole 12. .

なお、環状大気溝１１を設け、第１大気導入孔１２から大気を導入することにより、環状負圧溝９に直接大気を導入した場合に比べ、導入大気によりワークごとの負圧班が発生するのを防止することができる。なお、邪魔板を設けることにより、環状負圧溝９に直接大気導入孔を設けることもできる。   In addition, by providing the annular atmosphere groove 11 and introducing the atmosphere from the first atmosphere introduction hole 12, a negative pressure group for each workpiece is generated by the introduced atmosphere as compared with the case where the atmosphere is directly introduced into the annular negative pressure groove 9. Can be prevented. An air introduction hole can also be provided directly in the annular negative pressure groove 9 by providing a baffle plate.

次に図３により本発明の変形例について説明する。図１および図２において、テーブルベース２に環状大気溝１１と吸引溝５とを削設した例を示したが、図３に示すように、各ワーク収納溝４と環状負圧溝９の略中間位置に、搬送テーブル３の上面から下面側へ向かって吸引溝５に連通する微少断面の第２大気導入孔１３が設けられている。   Next, a modification of the present invention will be described with reference to FIG. 1 and 2, the example in which the annular atmospheric groove 11 and the suction groove 5 are cut in the table base 2 is shown. However, as shown in FIG. 3, the workpiece storage grooves 4 and the annular negative pressure grooves 9 are substantially omitted. A second atmosphere introduction hole 13 having a minute cross section that communicates with the suction groove 5 from the upper surface to the lower surface side of the transfer table 3 is provided at an intermediate position.

図３に示す変形例において、図１および図２に示す実施の形態と同一部分には同一符号を付して詳細な説明は省略する。   In the modification shown in FIG. 3, the same parts as those in the embodiment shown in FIGS. 1 and 2 are denoted by the same reference numerals, and detailed description thereof is omitted.

図３において、ワークｗがワーク収納溝４内に装填されると、吸引保持に伴い閉塞された吸引溝５に第２大気導入孔１３から大気が吸気される。このことにより環状負圧溝９内の負圧を安定させることができる。図３においては、第２大気導入孔１３が搬送テーブル３に垂直に形成されているが、第２大気導入孔１３を上面側が下面側に対して搬送テーブル３の回転中心方向に向かうよう傾斜して設けてもよい。   In FIG. 3, when the work w is loaded into the work storage groove 4, the air is sucked from the second air introduction hole 13 into the suction groove 5 that is closed along with suction holding. As a result, the negative pressure in the annular negative pressure groove 9 can be stabilized. In FIG. 3, the second atmosphere introduction hole 13 is formed perpendicular to the transfer table 3, but the second atmosphere introduction hole 13 is inclined so that the upper surface side is directed toward the rotation center of the transfer table 3 with respect to the lower surface side. May be provided.

次に図４により、本発明の他の変形例について説明する。上述した各実施の形態において、ワーク収納溝４毎に大気を吸気するため第１および第２大気導入孔１２、１３を設けた例を示したが、図４に示すように、真空配管１４にティー継手１５を介して大気側に連通された大気導入管１７が接続されている。   Next, another modification of the present invention will be described with reference to FIG. In each of the above-described embodiments, the example in which the first and second atmosphere introduction holes 12 and 13 are provided for sucking the atmosphere for each work storage groove 4 is shown. However, as shown in FIG. An atmosphere introduction pipe 17 communicated with the atmosphere side through a tee joint 15 is connected.

図４に示す変形例において、図１および図２に示す実施の形態と同一部分には同一符号を付して詳細な説明は省略する。   In the modification shown in FIG. 4, the same parts as those in the embodiment shown in FIGS. 1 and 2 are denoted by the same reference numerals, and detailed description thereof is omitted.

図４において、テーブルベース２を貫通した吸引連通孔１０が設けられ、この吸引連通孔１０に真空配管１４が螺合されている。真空配管１４と真空発生源１４ａとの間に、直線継手側を負圧通路とするティー継手１５が挿入され、ティー継手１５の分岐継手側に大気導入管１７が接続されている。大気導入管１７は、流量調整手段１６を介して大気開放している。   In FIG. 4, a suction communication hole 10 penetrating the table base 2 is provided, and a vacuum pipe 14 is screwed into the suction communication hole 10. A tee joint 15 having a straight joint side as a negative pressure passage is inserted between the vacuum pipe 14 and the vacuum generation source 14 a, and an air introduction pipe 17 is connected to the branch joint side of the tee joint 15. The atmosphere introduction pipe 17 is opened to the atmosphere via the flow rate adjusting means 16.

図４において、ワーク収納溝４にワークｗが装填されると、大気連通孔１０から真空配管１４内への吸気量が減り、環状負圧溝９の負圧が変動しようとする。この場合、大気連通孔１０側からの吸気が減少した分を流量調整手段１６を介して大気導入管１７から真空配管１４内に給気することができ、環状負圧溝９内の負圧の変動を抑制することができる。   In FIG. 4, when the workpiece w is loaded in the workpiece storage groove 4, the amount of intake air from the atmosphere communication hole 10 into the vacuum pipe 14 decreases, and the negative pressure in the annular negative pressure groove 9 tends to fluctuate. In this case, the reduced amount of intake air from the atmosphere communication hole 10 side can be supplied from the atmosphere introduction pipe 17 into the vacuum pipe 14 via the flow rate adjusting means 16, and the negative pressure in the annular negative pressure groove 9 can be reduced. Variations can be suppressed.

図４に示すように、真空配管１４に大気導入管１７を挿入するのみで、高価な圧力制御装置等を用いること無く、環状負圧溝９内の吸引圧力を安定させることができるため、簡便で安価な装置とすることができる。なお、図４において、流量調整手段１６側からの給気量が比較的大量となるため、真空発生源１４ａはその供給容量に余裕があることが望ましい。   As shown in FIG. 4, the suction pressure in the annular negative pressure groove 9 can be stabilized simply by inserting the air introduction pipe 17 into the vacuum pipe 14 without using an expensive pressure control device or the like. And an inexpensive device. In FIG. 4, since the amount of air supplied from the flow rate adjusting means 16 side is relatively large, it is desirable that the vacuum generation source 14a has a sufficient supply capacity.

また、ティー継手１５は、分岐手段の一例であり、真空配管１４側の通気抵抗を小さく、大気導入管１７側の通気抵抗を大きくすることができれば、ティー継手１５以外の分岐手段を用いてもよい。   The tee joint 15 is an example of a branching means. If the ventilation resistance on the vacuum pipe 14 side can be reduced and the ventilation resistance on the atmosphere introduction pipe 17 side can be increased, a branching means other than the tee joint 15 can be used. Good.

本発明によるワーク搬送装置の一実施の形態を示す構成図。The block diagram which shows one Embodiment of the workpiece conveyance apparatus by this invention. 図１に示すワーク搬送装置の部分断面図。The fragmentary sectional view of the workpiece conveyance apparatus shown in FIG. 本発明によるワーク搬送装置の変形例を示す部分断面図。The fragmentary sectional view which shows the modification of the workpiece conveyance apparatus by this invention. 本発明によるワーク搬送装置の他の変形例を示す部分断面図。The fragmentary sectional view which shows the other modification of the workpiece conveyance apparatus by this invention. 従来のワーク搬送装置を示す部分断面図。The fragmentary sectional view which shows the conventional workpiece conveyance apparatus. ワーク装填率に対する吸引圧力の例を示す図。The figure which shows the example of the suction pressure with respect to a workpiece | work loading rate.

符号の説明Explanation of symbols

１ ワーク搬送装置
２ テーブルベース
３ 搬送テーブル
４ ワーク収納溝
５ 吸引溝
６ ワーク供給部
７ 測定部
８ 排出部
８ａ 排出孔
９ 環状負圧溝
１０ 吸引連通孔
１１ 環状大気溝
１２ 第１大気導入孔
１３ 第２大気導入孔
１４ 真空配管
１４ａ 真空発生源
１５ ティー継手
１６ 流量調整手段
１７ 大気導入管
ｗ ワーク DESCRIPTION OF SYMBOLS 1 Work conveying apparatus 2 Table base 3 Conveying table 4 Work storage groove 5 Suction groove 6 Work supply part 7 Measuring part 8 Discharge part 8a Discharge hole 9 Annular negative pressure groove 10 Suction communication hole 11 Annular atmospheric groove 12 1st atmospheric introduction hole 13 Second air introduction hole 14 Vacuum pipe 14a Vacuum generation source 15 Tee joint 16 Flow rate adjusting means 17 Air introduction pipe w Workpiece

Claims (5)

テーブルベースと、
テーブルベース上に回転自在に配置され、外周縁に複数のワーク収納溝が設けられた搬送テーブルとを備え、
テーブルベースの搬送テーブルに近接する面に、真空配管を介して真空発生源に連通する環状負圧溝が設けられ、
搬送テーブルのテーブルベースに近接する面に各ワーク収納溝と環状負圧溝とを連通する吸引溝が設けられ、
吸引溝に、大気側に連通する大気給気手段を設けたことを特徴とするワーク搬送装置。 Table base,
A transport table that is rotatably arranged on the table base and has a plurality of workpiece storage grooves on the outer periphery;
An annular negative pressure groove communicating with the vacuum generation source via a vacuum pipe is provided on the surface close to the table base transfer table,
A suction groove that communicates each workpiece storage groove and the annular negative pressure groove is provided on the surface of the transfer table close to the table base,
An apparatus for conveying a work, characterized in that an air supply means communicating with the atmosphere side is provided in the suction groove. 大気給気手段は、テーブルベースに設けられ吸引溝と連通する環状大気溝と、環状大気溝と大気側とを連通する第１大気導入孔とを有することを特徴とする請求項１記載のワーク搬送装置。   2. The workpiece according to claim 1, wherein the atmospheric air supply means includes an annular atmospheric groove provided in the table base and communicated with the suction groove, and a first atmospheric introduction hole communicating the annular atmospheric groove and the atmosphere side. Conveying device. 大気給気手段は、搬送テーブルに設けられ吸引溝と大気側とを連通する第２大気導入孔を有することを特徴とする請求項１記載のワーク搬送装置。   2. The work transfer apparatus according to claim 1, wherein the air supply means has a second air introduction hole that is provided on the transfer table and communicates between the suction groove and the atmosphere side. 大気給気手段は、真空配管に接続され、大気側に連通された大気導入管を有することを特徴とする請求項１記載のワーク搬送装置。   2. The work conveying apparatus according to claim 1, wherein the air supply means has an air introduction pipe connected to the vacuum pipe and communicated with the atmosphere side. 大気導入管に流量調整手段を設けたことを特徴とする請求項４記載のワーク搬送装置。   5. The workpiece transfer apparatus according to claim 4, wherein a flow rate adjusting means is provided in the atmosphere introduction pipe.
JP2004217064A 2004-07-26 2004-07-26 Work transfer device Active JP4372634B2 (en)

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TW094120842A TWI281903B (en) 2004-07-26 2005-06-22 Workpiece carrying device
KR1020050059694A KR100757025B1 (en) 2004-07-26 2005-07-04 Work conveyance device
CN200510084547A CN100591595C (en) 2004-07-26 2005-07-26 Work-piece conveying device

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Cited By (2)

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WO2007141976A1 (en) * 2006-06-02 2007-12-13 Murata Manufacturing Co., Ltd. Work transporting apparatus and electronic component transporting apparatus
CN103043437A (en) * 2012-12-27 2013-04-17 佛山市顺德区容桂睿诚机械模具厂 Sucking and releasing wheel

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JP4046138B2 (en) * 2006-05-24 2008-02-13 株式会社村田製作所 Work transfer device and electronic component transfer device
CN103771131B (en) * 2012-10-19 2016-12-21 深南电路有限公司 Material fetching device
TWI752602B (en) * 2020-08-25 2022-01-11 萬潤科技股份有限公司 Electronic component conveying method and device
CN113579118B (en) * 2021-08-18 2023-04-18 湖北永瑞电子科技股份有限公司 Cutting device of pencil

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KR200181029Y1 (en) 1997-06-28 2000-05-15 정영경 Opener and closer of water bottle

Cited By (5)

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Publication number Priority date Publication date Assignee Title
WO2007141976A1 (en) * 2006-06-02 2007-12-13 Murata Manufacturing Co., Ltd. Work transporting apparatus and electronic component transporting apparatus
US7837027B2 (en) 2006-06-02 2010-11-23 Murata Manufacturing Co., Ltd. Workpiece transporting apparatus and electronic component transporting apparatus
KR101081068B1 (en) 2006-06-02 2011-11-07 가부시키가이샤 무라타 세이사쿠쇼 Work transporting apparatus and electronic component transporting apparatus
CN101454229B (en) * 2006-06-02 2013-01-23 株式会社村田制作所 Work transporting apparatus and electronic component transporting apparatus
CN103043437A (en) * 2012-12-27 2013-04-17 佛山市顺德区容桂睿诚机械模具厂 Sucking and releasing wheel

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KR100757025B1 (en) 2007-09-07
KR20060049815A (en) 2006-05-19

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