JP4122907B2

JP4122907B2 - Press-fitting device

Info

Publication number: JP4122907B2
Application number: JP2002266808A
Authority: JP
Inventors: 清平瀬
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 2002-09-12
Filing date: 2002-09-12
Publication date: 2008-07-23
Anticipated expiration: 2022-09-12
Also published as: JP2004098261A

Description

【０００１】
【発明の属する技術分野】
本発明は圧入装置に関する。
【０００２】
【従来の技術】
例えば、自動車のオルタネータにダイオードを組み付けるために、オルタネータの一部分である板部材に設けられた孔にダイオードを圧入する圧入装置が従来知られている。この従来の圧入装置１００は、図５に示すように、上側押え部１１０と、圧入部材であるダイオード８と被圧入部材である板部材９とを載せた下側押え部１２０とを備えている。また、下側押え部１２０は、上側押え部１１０との間で相対的に移動可能に構成されており、圧入時には、上側押え部１２０に向けてダイオード８及び板部材９を載せた下側押え部１１０を上昇させることにより、板部材９の孔内にダイオード８を圧入する。
【０００３】
この圧入工程では大きな圧入荷重が必要とされるため、下側押え部１１０の昇降機構の動力源としてサーボモータ１３０が採用されている。しかしながら、このようにサーボモータ１３０を動力源として採用すると、ダイオードの圧入された板部材９を取り出すために必要とされる距離が長いので、下側押え部１２０を上側押え部１１０に対して移動させるのにサーボモータ１３０ではかなり時間がかかる他、下側押え部１２０を高速で移動させるためにサーボモータ１３０の回転トルクを大きくすることにより、消費電力が大きくなってしまうという問題点があった。
【０００４】
【発明が解決しようとする課題】
そこで、上記問題点に鑑み、本発明の目的は、高速かつ低消費電力で圧入部材を被圧入部材に圧入する圧入装置を提供することである。
【０００５】
【課題を解決するための手段】
本発明の請求項１に係る圧入装置によれば、ダイオードからなる圧入部材と、圧入部材の断面にほぼ対応した断面を有する孔が設けられた板部材からなる被圧入部材とを保持する本体と、被圧入部材を孔において上から押圧しつつ予め定めた位置に位置決めする、中空のテーパー状センタリングピンからなる上側押え部であって、被圧入部材と当接する下側当接位置と、被圧入部材と離間した下側当接位置の上方の上側離間位置との間で駆動されることにより移動する、上側押え部と、上側押え部に接続された第一リンクと、第二リンクと、第一リンクと第二リンクを接続する接続部とを備えたトグルリンクであって、トグルリンクを、上側押え部の下側当接位置に対応する伸長位置と、上側押え部の上側離間位置に対応する屈曲位置との間で移動させるように、トグルリンクの接続部が、駆動手段によって移動させられる、トグルリンクと、ボールねじを介して駆動手段に接続されおりかつ圧入部材を下から押圧する、下側押え部であって、圧入部材を押圧しない下側非押圧位置と、圧入部材を下から押圧して被圧入部材に圧入する上側押圧位置との間で、上側押え部を駆動する時の力よりも大きな力で駆動されることにより移動する、下側押え部と、を備えている。これにより、最初に上側押え部が上側離間位置にありかつ下側押え部が下側非押圧位置にあり、位置決め時に、上側押え部を被圧入部材の上側に当接させることにより、圧入部材及び被圧入部材を両押え部で挟持し、次いで、圧入時に、下側押え部を下から圧入部材と当接させて上昇させ、圧入部材を被圧入部材に圧入する。その結果、大きな負荷が要求されない位置決め時において、上側押え部を小さな力で移動させ、その一方で、大きな負荷を必要とする圧入工程において、下側押え部を大きな力で移動させることができ、高速かつ低消費電力で圧入することができる。また、トグルリンクの接続部をわずかに移動させただけで、高速かつ低消費電力でトグルリンクを延伸又は屈曲させ、上側押え部を昇降させることができる。すなわち、一層高速かつ低消費電力で圧入することができる。
【０００７】
【発明の実施の形態】
以下、本発明の実施例について添付図面を参照して詳細に説明する。図１は本発明の圧入装置を示す図である。図１に示すように、本発明の圧入装置１０は、圧入部材８及び被圧入部材９を保持したワーク保持具７と、ワーク保持具７を搭載した不動の本体部２と、被圧入部材９を上から下方へ押圧しうるように昇降可能な上側押え部３と、圧入部材８を下から上方へ押圧しうるように昇降可能な下側押え部として機能する加圧部６とで概ね構成されている。なお、本実施例では、圧入部材８はダイオードであり、被圧入部材９はダイオードの断面にほぼ対応した断面を有する孔９１が設けられた板部材である。
【０００８】
最初にワーク保持具７について説明する。図２は図１中の円Ａで囲まれた圧入部分の拡大断面図である。図２に示すように、ワーク保持具７は、被圧入部材９を支持するワーク保持具本体７１と、ワーク保持具本体７１に設けた孔７３と、この孔７３内に配置された、圧入部材８を支持するパンチ部７２とを備えている。このパンチ部７２は孔７３内で上下方向に移動可能である。これにより、パンチ部７２の底面を加圧部６の加圧具５で上方に押圧することにより、パンチ部７２上の圧入部材８を被圧入部材９の孔９１に圧入することができる。
【０００９】
次に本体２について説明する。本体２には、複数の孔２１が設けられている。加圧部６の加圧具５はこの孔２１内に配置されている。加圧具５は、パンチ部７２及び圧入部材８を押圧しない非押圧位置と、パンチ部７２及び圧入部材８を上方に押圧する押圧位置との間で移動可能である。
【００１０】
上側押え部３は、上面が上部１２とエアシリンダ３２で接続されており、下面が本体２とエアシリンダ３３で接続されている。これにより、上側押え部３は、上部３と本体２の間で移動可能である。また、上側押え部３の上面は、エアシリンダ３２の他に、上側押え部３と接続された第一リンク１１ａと上部１２と接続された第二リンク１１ｂとで構成されるトグルリンク１１を介して上部１２に接続されている。第一リンク１１ａと第二リンク１１ｂを接続する接続部には、上部１２に接続された、駆動手段としてのエアシリンダ４が接続されている。これにより、エアシリンダ４の伸長時にはトグルリンク１１が延伸し、上側押え部３は、被圧入部材９と当接する下側当接位置に位置し、エアシリンダ４の収縮時には、トグルリンク１１が屈曲し、上側押え部３は、被圧入部材９と離間した上側離間位置に位置する。このように、トグルリンク１１を介してエアシリンダ４で上側押え部３を駆動することにより、わずかにエアシリンダ４を移動させただけで高速かつ低消費電力で上側押え部３を昇降させることができる。
【００１１】
次に上側押え部３の位置決め機構について説明する。上側押え部３を被圧入部材９と当接させる際に被圧入部材９の位置決め精度をより向上させるために、上側押え部３にはテーパ状の外面を有するセンタリングピン３１が配置されている。センタリングピン３１は、上側押え部３内に設けられた凹所の中のエアシリンダ（図示せず）に接続されており、ピン３１はその軸線方向に移動可能である。図２に示すように、上側押え部３を下側当接位置に向けて下降させる際、ピン３１の外面が被圧入部材９の孔９１と係合することにより、被圧入部材９は正確に位置決めされる。なお、本実施例では、センタリングピン３１は、圧入部材に例えばリード線などの突起部８１がある場合にピン３１と干渉しないように、中空形状となっている。
【００１２】
次に加圧部６について説明する。加圧部６の加圧具５は、加圧具本体６０に内蔵されたボールねじ部（図示せず）に接続されている。このボールねじ部は、基部６２に固定されたモータ６１の軸と、ボールねじ部に連結された軸とがベルト６３を介して接続されている。このような構成により、このモータ６１の軸を回転させることにより、ベルト６３及びボールねじ部を介して加圧具５を上昇又は下降させることができる。
【００１３】
次に本発明の圧入装置の操作について説明する。圧入装置の操作は、ワーク保持具の配置段階、ワークの位置決め段階、圧入段階及びワークの取り出し段階で構成されている。最初のワーク保持具の配置の段階では、図１に示すように、上側押え部３を上側離間位置に、下側押え部としての加圧具５を下側非押圧位置にそれぞれ配置し、圧入部材８をパンチ部７２上に搭載し、被圧入部材９をワーク保持具本体７１上に搭載し、ワーク保持具７を本体２上に配置する。次に、ワークの位置決めの段階では、図３に示すように、上側押え部３を下側当接位置に下降させ、被圧入部材９及び圧入部材８を上側押え部３及び加圧具５で挟持した状態となる。次に、圧入段階では、図４に示すように、加圧部６のモータ６１を駆動して加圧具５及びパンチ部７２を上昇させて圧入部材８を被圧入部材９の孔９１に圧入する。最後に、ワークの取り出しの段階では、図１に示すように、ワーク保持具の配置の段階と同様に、上側押え部３を上側離間位置に、下側押え部としての加圧具５を下側非押圧位置にそれぞれ配置し、ワーク（被圧入部材９）を取り出す。このように、特に、ワークの位置決め段階及びワークの取り出し段階において比較的に小さな力で上側押え部３を高速かつ低消費電力で移動させることができる。
【００１４】
上記実施例では、ワーク保持具７を本体部２上に搭載した例について説明したが、ワーク保持具７を本体部２とは別の例えば割り出し機構などの構造によって支持されてもよい。
【図面の簡単な説明】
【図１】ワーク保持具の配置の段階又はワークの取り出しの段階の本発明の圧入装置を示す図である。
【図２】図１中の円Ａで囲まれた圧入部分の拡大断面図である。
【図３】ワークの位置決めの段階の本発明の圧入装置を示す図である。
【図４】圧入段階の本発明の圧入装置を示す図である。
【図５】従来の圧入装置を示す図である。
【符号の説明】
２…本体
３…上側押え部
５…加圧具
８…圧入部材
９…被圧入部材
１０…圧入装置[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a press-fitting device.
[0002]
[Prior art]
For example, a press-fitting device that press-fits a diode into a hole provided in a plate member that is a part of the alternator in order to assemble the diode to an alternator of an automobile is conventionally known. As shown in FIG. 5, the conventional press-fitting device 100 includes an upper presser part 110 and a lower presser part 120 on which a diode 8 as a press-fitting member and a plate member 9 as a press-fitted member are placed. . Further, the lower presser portion 120 is configured to be relatively movable with respect to the upper presser portion 110, and when press-fitted, the lower presser foot on which the diode 8 and the plate member 9 are placed toward the upper presser portion 120. The diode 8 is pressed into the hole of the plate member 9 by raising the portion 110.
[0003]
Since a large press-fitting load is required in this press-fitting process, the servo motor 130 is employed as a power source for the lifting mechanism of the lower presser part 110. However, when the servo motor 130 is used as a power source in this way, the distance required to take out the plate member 9 into which the diode is press-fitted is long, and therefore the lower presser 120 is moved relative to the upper presser 110. In addition to taking a considerable amount of time for the servomotor 130, there is a problem in that the power consumption increases by increasing the rotational torque of the servomotor 130 in order to move the lower presser 120 at a high speed. .
[0004]
[Problems to be solved by the invention]
Accordingly, in view of the above problems, an object of the present invention is to provide a press-fitting device that press-fits a press-fitting member into a press-fitted member with high speed and low power consumption.
[0005]
[Means for Solving the Problems]
According to the press-fitting device according to claim 1 of the present invention, a main body holding a press-fitting member made of a diode and a press-fitting member made of a plate member provided with a hole having a cross section substantially corresponding to the cross section of the press fit member; , positioned to predetermined positions while pressing from above the press-fit member in the hole, a upper holding portion made of a hollow tapered centering pin, a lower contact position abuts a pressed insertion member, the press-fit moves by being driven between above the upper separated position of the lower contact position spaced from the member, and the upper holding part, a first link connected to the upper holding part, a second link, the A toggle link having a connection part for connecting one link and a second link, wherein the toggle link corresponds to an extended position corresponding to the lower contact position of the upper presser part and an upper separated position of the upper presser part. Between the bending position So as to cause movement to the connecting portion of the toggle link is moved by the drive means, and the toggle link, to press from below the connected and and pressed member to the drive means via the ball screw, a lower holding part driving a lower non-pressing position where it does not press the press-fit member, in between the upper pressing position to press-fitted into the press-fit member by pressing the press-fitting member from below, with a force greater than the force at the time of driving the upper holding portion It is the move by, and a, and the lower holding portion. As a result, the upper presser part is initially in the upper separated position and the lower presser part is in the lower non-pressed position, and the upper presser part is brought into contact with the upper side of the press-fit member during positioning, thereby The press-fit member is clamped between the presser portions, and then, when press-fitted, the lower presser portion is brought into contact with the press-fit member from below and raised to press-fit the press-fit member into the press-fit member. As a result, at the time of positioning where a large load is not required, the upper presser part can be moved with a small force, while the lower presser part can be moved with a large force in a press-fitting process that requires a large load, It can be press-fitted at high speed and with low power consumption. In addition, the toggle link can be extended or bent at a high speed and with low power consumption, and the upper presser portion can be moved up and down only by slightly moving the connection portion of the toggle link. In other words, press-fitting can be performed with higher speed and lower power consumption.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a view showing a press-fitting device of the present invention. As shown in FIG. 1, the press-fitting device 10 of the present invention includes a work holder 7 holding a press-fitting member 8 and a press-fitted member 9, an immovable main body 2 on which the work holder 7 is mounted, and a press-fitted member 9. The upper presser part 3 that can be moved up and down so that it can be pressed downward from above and the pressurizing part 6 that functions as a lower presser part that can be moved up and down so that the press-fitting member 8 can be pressed upward from the bottom. Has been. In this embodiment, the press-fit member 8 is a diode, and the press-fit member 9 is a plate member provided with a hole 91 having a cross section substantially corresponding to the cross section of the diode.
[0008]
First, the workpiece holder 7 will be described. FIG. 2 is an enlarged cross-sectional view of a press-fitted portion surrounded by a circle A in FIG. As shown in FIG. 2, the work holder 7 includes a work holder main body 71 that supports the press-fit member 9, a hole 73 provided in the work holder main body 71, and a press-fitting member disposed in the hole 73. 8 is provided with a punch portion 72 that supports 8. The punch portion 72 can move in the vertical direction within the hole 73. Thereby, the press-fitting member 8 on the punch part 72 can be press-fitted into the hole 91 of the press-fitted member 9 by pressing the bottom surface of the punch part 72 upward with the pressurizing tool 5 of the pressurizing part 6.
[0009]
Next, the main body 2 will be described. The main body 2 is provided with a plurality of holes 21. The pressurizing tool 5 of the pressurizing unit 6 is disposed in the hole 21. The pressurizing tool 5 is movable between a non-pressing position where the punch part 72 and the press-fitting member 8 are not pressed and a pressing position where the punch part 72 and the press-fitting member 8 are pressed upward.
[0010]
The upper presser portion 3 has an upper surface connected to the upper portion 12 via an air cylinder 32 and a lower surface connected to the main body 2 via an air cylinder 33. Thereby, the upper presser part 3 is movable between the upper part 3 and the main body 2. In addition to the air cylinder 32, the upper surface of the upper presser portion 3 has a toggle link 11 constituted by a first link 11 a connected to the upper presser portion 3 and a second link 11 b connected to the upper portion 12. Connected to the upper portion 12. An air cylinder 4 as a driving means connected to the upper portion 12 is connected to a connection portion connecting the first link 11a and the second link 11b. As a result, the toggle link 11 is extended when the air cylinder 4 is extended, and the upper presser portion 3 is positioned at the lower contact position where the press-fit member 9 is contacted. When the air cylinder 4 is contracted, the toggle link 11 is bent. The upper presser portion 3 is located at an upper separated position separated from the press-fitting member 9. Thus, by driving the upper presser portion 3 with the air cylinder 4 via the toggle link 11, the upper presser portion 3 can be moved up and down at high speed and with low power consumption by moving the air cylinder 4 slightly. it can.
[0011]
Next, the positioning mechanism of the upper presser part 3 will be described. In order to further improve the positioning accuracy of the press-fit member 9 when the upper presser portion 3 is brought into contact with the press-fit member 9, a centering pin 31 having a tapered outer surface is arranged on the upper presser portion 3. The centering pin 31 is connected to an air cylinder (not shown) in a recess provided in the upper presser portion 3, and the pin 31 is movable in the axial direction thereof. As shown in FIG. 2, when the upper presser portion 3 is lowered toward the lower contact position, the outer surface of the pin 31 is engaged with the hole 91 of the press-fit member 9 so that the press-fit member 9 is accurately Positioned. In the present embodiment, the centering pin 31 has a hollow shape so as not to interfere with the pin 31 when the press-fitting member has a protrusion 81 such as a lead wire.
[0012]
Next, the pressurizing unit 6 will be described. The pressurizing tool 5 of the pressurizing unit 6 is connected to a ball screw part (not shown) built in the pressurizing tool body 60. In this ball screw portion, the shaft of the motor 61 fixed to the base portion 62 and the shaft connected to the ball screw portion are connected via a belt 63. With such a configuration, the pressure tool 5 can be raised or lowered via the belt 63 and the ball screw portion by rotating the shaft of the motor 61.
[0013]
Next, the operation of the press-fitting device of the present invention will be described. The operation of the press-fitting device is composed of a work holder placement stage, a work positioning stage, a press-fit stage, and a work take-out stage. At the stage of the first work holder placement, as shown in FIG. 1, the upper presser part 3 is placed at the upper separation position, and the presser tool 5 as the lower presser part is placed at the lower non-pressing position, respectively. The member 8 is mounted on the punch portion 72, the press-fitted member 9 is mounted on the work holder main body 71, and the work holder 7 is disposed on the main body 2. Next, at the stage of positioning the workpiece, as shown in FIG. 3, the upper presser part 3 is lowered to the lower contact position, and the press-fitting member 9 and the press-fitting member 8 are moved by the upper presser part 3 and the pressurizing tool 5. It will be in a clamped state. Next, in the press-fitting step, as shown in FIG. 4, the motor 61 of the pressurizing unit 6 is driven to raise the pressurizing tool 5 and the punch unit 72 to press-fit the press-fitting member 8 into the hole 91 of the press-fitted member 9. To do. Finally, in the work removal stage, as shown in FIG. 1, as in the stage of the work holder placement, the upper presser part 3 is placed at the upper separation position and the presser tool 5 as the lower presser part is lowered. It arrange | positions in a side non-pressing position, respectively, and takes out a workpiece | work (press-fit member 9). In this way, in particular, the upper presser portion 3 can be moved at a high speed and with low power consumption with a relatively small force in the workpiece positioning stage and the workpiece unloading stage.
[0014]
In the above-described embodiment, an example in which the work holder 7 is mounted on the main body 2 has been described.
[Brief description of the drawings]
FIG. 1 is a view showing a press-fitting device of the present invention at a stage of arranging a work holder or a stage of taking out a work.
FIG. 2 is an enlarged cross-sectional view of a press-fitted portion surrounded by a circle A in FIG.
FIG. 3 is a view showing a press-fitting device of the present invention at a stage of workpiece positioning.
FIG. 4 is a view showing a press-fitting device of the present invention at a press-fitting stage.
FIG. 5 is a view showing a conventional press-fitting device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 2 ... Main body 3 ... Upper presser part 5 ... Pressurizing tool 8 ... Press-fit member 9 ... Press-fit member 10 ... Press-fit apparatus

Claims

A main body for holding a press-fitting member made of a diode and a press-fitting member made of a plate member provided with a hole having a cross section substantially corresponding to the cross section of the press-fitting member;
Wherein positioning the pressed insertion member to a predetermined position while pressing from above in the hole, a upper holding portion made of a hollow tapered centering pin, a lower contact position where the contact person and pressed insertion member, the move by being driven between above the upper separated position of the lower contact position separated from the pressed insertion member, and the upper holding part,
A toggle link comprising a first link connected to the upper presser, a second link, and a connecting part connecting the first link and the second link, wherein the toggle link is connected to the upper presser The connecting portion of the toggle link is moved by the driving means so as to be moved between the extended position corresponding to the lower contact position of the portion and the bent position corresponding to the upper separated position of the upper pressing portion. With a toggle link,
Pressing the connected and and the press-fitting member from below into the drive means through a ball screw, a lower holding portion, and a lower non-pressing position where it does not press the press-fitting member, it presses the press-fit member from below wherein between an upper pressing position to press-fitted into the press-fit member is moved by being driven by a force greater than the force at the time of driving the upper holding part, that it and a lower holding portion Te A press-fitting device characterized by.