WO2015151212A1 - Clamping device - Google Patents

Clamping device Download PDF

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Publication number
WO2015151212A1
WO2015151212A1 PCT/JP2014/059586 JP2014059586W WO2015151212A1 WO 2015151212 A1 WO2015151212 A1 WO 2015151212A1 JP 2014059586 W JP2014059586 W JP 2014059586W WO 2015151212 A1 WO2015151212 A1 WO 2015151212A1
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WO
WIPO (PCT)
Prior art keywords
working fluid
flow path
storage chamber
clamp
valve
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PCT/JP2014/059586
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French (fr)
Japanese (ja)
Inventor
吉成 斎藤
Original Assignee
株式会社ヨロズ
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Publication date
Application filed by 株式会社ヨロズ filed Critical 株式会社ヨロズ
Priority to PCT/JP2014/059586 priority Critical patent/WO2015151212A1/en
Publication of WO2015151212A1 publication Critical patent/WO2015151212A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426—Fixtures for other work
    • B23K37/0452—Orientable fixtures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426—Fixtures for other work
    • B23K37/0435—Clamps

Definitions

  • the present invention relates to a clamp device used when joining members constituting suspension links and subframes constituting a suspension.
  • welding may be performed when connecting an arm portion serving as an arm and an end portion to which a bush or the like is attached. In such a case, joining is performed in a state where the arm portion and the end portion to which the bush is attached are clamped so as not to move.
  • there is joining of a side member and a cross member in a subframe of a suspension for example, a device including a cylinder, a solenoid valve, a piston, a clamp pin, or the like is disclosed as an apparatus for clamping an arm portion or an end portion to which a bush is attached, or a side member and a cross member (see Patent Document 1).
  • an object of the present invention is to provide a clamping device that does not complicate a mechanism for controlling the timing of pressing a plurality of locations for pressing a workpiece.
  • the clamping device that achieves the above object fixes or releases the object when two or more objects are joined.
  • the clamp device includes a supply portion that supplies a working fluid, a first pressing member that can be fixed close to or away from an object, and a space that accommodates the working fluid.
  • a first storage chamber for moving the first pressing member closer to and away from the object; a first flow path for flowing the working fluid into the first storage chamber or discharging the working fluid from the first storage chamber; and a second flow path.
  • a first pressing member, a second pressing member that can be fixed close to or away from the target object, and a space that accommodates the working fluid, and the second pressing member is provided by the inflow and discharge of the working fluid.
  • a second clamping chamber including a second storage chamber that is moved closer to and away from the second storage chamber, a third flow path that allows the working fluid to flow into or out of the second storage chamber, and a fourth flow path.
  • the clamping device of the present invention when the object is fixed, the working fluid is supplied from the first storage chamber, and after the working fluid is supplied from the supply unit, the valve is opened to enter the second storage chamber. And an opening valve for fixing the second pressing member close to the object. Since the release valve has a simple structure with a flow path communicating with the first storage chamber and the supply unit, the mechanism for delaying the pressing of the clamp unit is not complicated, the cost of the clamp device is reduced, and the suspension of the product suspension is reduced. This can contribute to cost reduction of frames and the like.
  • FIG. 1A, 1B, 1C, 1D, 1E, 1F, and 1G are a perspective view, a front view, a rear view, a left side view, a right side view, and a clamp device according to an embodiment of the present invention.
  • FIG. FIG. 2 is a front view showing the first piston and the first storage chamber of the first clamp portion and the second piston and the second storage chamber of the second clamp portion constituting the clamp device
  • FIG. 3 is a working fluid of the clamp device. It is a figure shown about this flow path.
  • 4 and 5 are flow charts showing the flow of the working fluid when the workpiece is clamped or released
  • FIG. 6 shows the subframe of the suspension which is an example of the workpiece clamped by the clamping device. It is a perspective view.
  • the clamping device 200 is used to clamp workpieces when joining adjacent members in a suspension arm, a suspension link, or a subframe of a suspension.
  • the subframe 300 is configured in a cross-beam shape when viewed in plan, but the shape is not limited to this.
  • the subframe 300 includes side members 310 and 330, cross members 320 and 340, and link attachment portions 350, 360, 370, and 380.
  • the side member 310 includes a U-shaped plate material 311, a plate material 312 that closes an opening in the U-shaped cross section of the plate material 311, and collars 313 and 314 attached to the plate material 311. Since the side member 330 has the same configuration as that of the side member 310, description thereof is omitted.
  • the cross members 320 and 340 are formed into a hollow closed cross section by bending a single plate material.
  • the present invention is not limited to this, and a single plate material formed in a U shape may be butted and joined to form a closed hollow cross section.
  • the link attachment portions 350, 360, 370, and 380 are portions for attaching suspension links to be connected to tire-side components.
  • the link attachment portions 350, 360, 370, and 380 are formed by bending a plate material into a U shape.
  • a suspension link is rotatably attached to the link attachment portions 350, 360, 370, and 380 by bolts and nuts.
  • the clamp device 200 includes a working fluid supply source 10 (corresponding to a supply unit), a clamp activation unit 20, a clamp release unit 30, operating valves 40 and 50 (corresponding to a switching valve), a first clamp unit 60, The second clamp unit 70, the release valves 80 and 90, the flow paths 11 to 19, and 21 to 28 through which the working fluid flows, the attachment structures 31 and 32, and the columns 33 and 34 are included.
  • the working fluid supply source 10 is a supply source that supplies working fluid toward the first clamp unit 60 or the second clamp unit 70 that performs clamping.
  • the working fluid supply source 10 is configured by filling a cylinder with air or nitrogen, which is a working fluid, but is not limited thereto.
  • the clamp activation unit 20 is disposed at a position through the flow path 11 from the working fluid supply source 10, through the flow path 12 from the branch part A, and further through the flow path 13 in the branch part B.
  • the clamp activation unit 20 includes a valve that allows the working fluid from the working fluid supply source 10 to pass through the flow path 13 and a button that switches opening and closing of the valve. When the operator or the like presses the button of the clamp activation unit 20, the fluid that has flowed to the flow path 13 can further flow downstream.
  • the working fluid that has passed through the clamp activator 20 flows through the flow paths 15, 16, and 17 to the operate valve 40 and the release valve 90.
  • the clamp release unit 30 passes through the flow path 11 from the working fluid supply source 10, and is disposed at a position through the flow path 14 from the branch part A through the flow path 12 and further in the branch part B.
  • the clamp release unit 30 includes a valve that allows the working fluid from the working fluid supply source 10 to flow downstream from the flow path 14 and a button that switches opening and closing of the valve. When an operator or the like presses the button of the clamp release unit 30, the fluid that has flowed to the flow path 14 can further flow downstream.
  • the working fluid that has passed through the clamp release unit 30 passes through the flow paths 18, 19, and 21 and flows to the operate valve 50 and the release valve 80.
  • the operating valves 40 and 50 are valves that are provided with a plurality of flow paths and switch the flow path of the working fluid through the first clamp part 60 or the second clamp part 70 according to the flow path through which the working fluid flows.
  • the operating valve 40 is configured so that the working fluid always flows from the flow paths 11, 22, and 23 from the working fluid supply source 10 and the operating valve 50 from the flow paths 11, 22, and 24.
  • the operating valve 40 causes the working fluid from the flow path 23 to flow to the flow path 64 and flow to the first storage chamber 62 of the first clamp portion 60 when the working fluid flows from the flow path 28.
  • the fluid is discharged from the channel 63.
  • the working fluid from the flow path 23 is circulated through the flow path 63 to the first storage chamber 62 and is discharged from the flow path 64.
  • the operating valve 50 causes the working fluid from the flow path 24 to flow to the flow path 74 and flow to the second storage chamber 72 of the second clamp unit 70 when the working fluid flows from the flow path 19. Discharge from the path 73.
  • the working fluid from the flow path 24 flows through the flow path 73, flows into the second storage chamber 72, and is discharged from the flow path 74.
  • the first clamp unit 60 includes a first piston 61 (corresponding to a first pressing member), a first storage chamber 62, and flow paths 63 and 64 (corresponding to a first flow path and a second flow path).
  • the first piston 61 includes a pressing portion 61a, a connecting portion 61b, a clamper 61c, and stoppers 61d and 61e.
  • the pressing part 61 a moves inside the first storage chamber 62 by the working fluid from the flow path 63 or the flow path 64.
  • the clamper 61c is interlocked with the movement of the pressing portion 61a by a rod-like connecting portion 61b.
  • the member to be clamped in this embodiment is a member of a cross beam frame, so the clamped portion is formed in a U shape in cross section, but the shape is not limited to this.
  • the stoppers 61d and 61e contact the upper and lower ends of the first storage chamber 62 to move the first piston 61 forward and backward in the first storage chamber 62, and provide a space for the working fluid to flow through the flow paths 25, 63, and 64. Make sure it can be secured.
  • the first storage chamber 62 includes connection portions 62a, 62b, and 62c that are connected to the flow paths 25, 63, and 64, and a through hole 62d in which the connection portion 61b of the first piston 61 is slidably disposed.
  • the connection part 62 a is disposed across the connection parts 62 b and 62 c and the pressing part 61 a of the first piston 61.
  • the flow path 63 is connected by the connection part 62a, and when making the 1st piston 61 approach a workpiece
  • the flow path 64 is connected by the connection part 62b, and when making the 1st piston 61 approach a workpiece
  • FIG. When the first piston 61 is separated from the work, the working fluid is circulated from the flow path 64 to the first storage chamber 62.
  • the flow path 25 is connected to the connection portion 62 c and causes the working fluid discharged from the first storage chamber 62 to flow to the release valve 90.
  • the through-hole 62 d is configured so that the connecting portion 61 b of the first piston 61 can slide and the working fluid does not leak from the first storage chamber 62.
  • a seal component such as an O-ring is attached to the through hole 62d, but the seal component is not limited to this.
  • the second clamp part 70 includes a second piston 71 (corresponding to a second pressing member), a second storage chamber 72, and flow paths 73 and 74 (corresponding to a third flow path and a fourth flow path). . Since the structure of the 2nd piston 71 and the flow paths 73 and 74 is the same as that of the 1st piston 61 and the flow paths 63 and 64 of the 1st clamp part 60, description is abbreviate
  • the second storage chamber 72 has connection portions 72a, 72b, 72c connected to the flow paths 27, 73, 74, and a through hole 72d. Since the through hole 72d is similar to the through hole 62d of the first storage chamber 62, the description thereof is omitted.
  • the flow path 73 is connected to the connection portion 72 a, and when the second piston 71 approaches the work, the working fluid in the second storage chamber 72 is circulated from the flow path 73 to the second storage chamber 72. When the second piston 71 is separated from the work, the working fluid in the second storage chamber 72 is discharged from the flow path 73.
  • the flow path 74 is connected to the connection portion 72b, and when the second piston 71 approaches the work, the working fluid in the second storage chamber 72 is discharged from the flow path 74. When the second piston is separated from the work, the working fluid is circulated from the flow path 74 to the second storage chamber 72.
  • the flow path 27 is connected at the connection portion 72 c and causes the working fluid discharged from the second storage chamber 72 to flow to the release valve 80.
  • the open valve 80 (corresponding to another open valve) is connected to the flow path 21 and the flow path 27 through which the working fluid flows, and is connected to the flow path 28 from which the working fluid flows out.
  • the release valve 80 opens the valve to flow the working fluid to the flow path 28.
  • the open valve 90 is connected to the flow path 17 and the flow path 25 for flowing the working fluid, and is connected to the flow path 26 for flowing the working fluid.
  • the release valve 90 opens the valve to flow the working fluid to the flow path 26.
  • the opening valves 80 and 90 are sometimes called AND valves.
  • the attachment structures 31 and 32 are structures to which the first clamp part 60 and the second clamp part 70 are attached so that they can be clamped at a predetermined position in the longitudinal direction of the side member 310 or the cross member 320.
  • the first clamp part 60 clamps the side member 310
  • the attachment structure 31 is formed integrally with the pillars 33 and 34
  • the first clamp part 60 is attached at the upper part.
  • the 2nd clamp part 70 clamps the cross member 320
  • the attachment structure 32 is comprised integrally with the pillars 33 and 34, and is attaching the 2nd clamp part 70 in the upper part.
  • the working fluid that circulates in the flow paths 12 and 13 circulates in the flow paths 15, 16, and 17 by pressing a button of the clamp activation unit 20 (see arrows a ⁇ b> 6 to a ⁇ b> 9).
  • the working fluid in the first storage chamber 62 is discharged from the flow paths 64 and 25 (see arrows a11 and a12).
  • the working fluid to the flow path 25 is configured to circulate when the stopper 61e of the first piston 61 contacts the lower end of the first storage chamber 62.
  • the working fluid flowing in the flow path 25 flows to the release valve 90, and the working fluid from the flow path 17 flows simultaneously to the release valve 90, whereby the working fluid is circulated through the flow path 26 and flows to the operate valve 50 (arrow a13). reference).
  • the fluid from the flow path 24 flows to the flow path 73 (see arrow a14).
  • the working fluid from the flow path 73 flows into the second storage chamber 72 and moves the second piston 71 in a direction to approach the cross member 320 that is a workpiece.
  • the working fluid in the second storage chamber 72 is discharged from the flow path 74 (see arrow a15).
  • the first piston 61 fixes the side member 330 of the subframe 300 of the suspension
  • the second piston 72 fixes the cross member 340 after the side member 330 is fixed, and the clamping operation is completed. Thereafter, the contact portion between the side member 330 and the cross member 340 is welded by a welding robot or manually.
  • the working fluid in the second storage chamber 72 is discharged from the flow paths 73 and 27 (see arrows b11 and b12).
  • the working fluid to the flow path 27 is configured to circulate when the second piston 71 contacts the upper end of the second storage chamber 72 with the stopper 71 d of the second storage chamber 72.
  • the working fluid flowing in the flow path 27 flows to the release valve 80, and the working fluid flows from the flow path 21 to the release valve 80 simultaneously, whereby the working fluid flows in the flow path 28 and flows to the operate valve 40 (see arrow b13). ).
  • the fluid from the flow path 23 flows to the flow path 64 (see arrow b14).
  • the working fluid from the flow path 64 flows into the first storage chamber 62 and moves the first piston 61 in a direction in which the first piston 61 is separated from the side member 310 that is a workpiece.
  • the working fluid in the first storage chamber 62 is discharged from the flow path 63 (see arrow b15).
  • the second piston 71 is separated from the cross member 340 of the subframe 300 of the suspension, and thereafter is separated from the first piston 61 from the side member 330, and the releasing operation of the clamp is completed. Thereafter, the welding operation of the remaining contact portions between the side members 310 and 330 and the cross members 320 and 340 is performed using the clamp device 200 in the same manner as described above.
  • the clamping device 200 when the working fluid supply source 10, the first clamping unit 60, the second clamping unit 70, and the first piston 61 approach the side member 330.
  • the valve is opened and the working fluid is supplied to the second storage chamber 72.
  • an opening valve 90 for fixing the second piston 72 close to the cross member 340.
  • the opening valve 90 adopts a simple structure in which the working fluid is circulated toward the flow channel 26 when the working fluid flows from the flow channel 17 and the flow channel 25. Therefore, it is possible to realize a mechanism for shifting the clamp timing of the first clamp unit 60 and the second clamp unit 70 in the clamp device 200 with an extremely simple structure, and to reduce the cost of the clamp device 200 and the suspension of the product. This can contribute to cost reduction of subframes and the like.
  • the clamping device 200 is supplied with the working fluid from the second storage chamber 72, and the working fluid is supplied from the working fluid supply source 10.
  • the valve is opened to supply a working fluid to the first storage chamber 61 and further to have an opening valve 80 for separating the first piston 61 from the side member 330.
  • the release valve 80 is also operated by the operating valve 40 for supplying the working fluid from the working fluid supply source 10 and the working fluid from the second storage chamber 72 to flow the working fluid to the first storage chamber 61. Since it has a simple structure of flowing a fluid, it can contribute to the cost reduction of the clamping device 200 and the cost of the suspension subframe as a product, like the open valve 90.
  • the clamping device 200 is connected to an operating valve 40 connected to the flow paths 63 and 64 and the flow paths 16 and 28 for flowing the working fluid, and to the flow paths 73 and 74 and the flow paths 19 and 26 for flowing the working fluid.
  • An operating valve 50, and the operating valves 40, 50 are either flow paths 63, 73 or flow paths 64, 74 depending on whether the working fluid flows from the flow paths 16, 26 or the flow paths 28, 19. From this, it is configured to switch whether the working fluid is circulated toward the first storage chamber 62 and the second storage chamber 72. If the operating valves 40 and 50 are equipped with an electromagnetic mechanism, the flow path can be switched by the flow of the working fluid, so that the energy used for the electromagnetic valve can be saved and energy saving can be achieved. Can do.
  • clamping device 200 can be used when the cross member 320 and the side member 310 are joined in the subframe of the suspension.
  • the working fluid uses a fluid such as air or nitrogen.
  • the present invention is not limited to this, and hydraulic pressure or the like may be used.
  • the embodiment has been described in which the clamp portion that holds the sub-frame of the suspension, which is a product, is the first clamp portion 60 and the second clamp portion 70, but is not limited thereto. That is, by configuring the clamp portion with three or more locations together with the opening valve, it is possible to sequentially delay and clamp a plurality of parts of the product with the three or more clamp portions.
  • Working fluid supply source (supply part), 20 Clamp starter, 200 clamping device, 30 Clamp release part, 300 suspension subframe, 310, 330 side members, 320, 340 cross member, 40, 50 operated valve (switching valve), 60 1st clamp part, 70 second clamp part, 80 Opening valve (other opening valve), 90 Opening valve, 11-19, 21-28 flow path, 16, 19, 26, 28 (inflow side) flow path, 63 (first) flow path, 64 (second) flow path, 73 (Third) flow path, 74 (fourth) flow path, a1 to a15 Flow of working fluid during clamping, b1 to b15 The flow of the working fluid when releasing the clamp,

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  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Abstract

This clamping device (200), wherein the mechanism for controlling the timing of the clamping of multiple sites to clamp a workpiece is not complicated, comprises: a working fluid supply source (10); a first clamping section (60); a second clamping section (70); and a release valve (90), to which, when fixing a side member (330) and a cross member (340), working fluid is supplied from a first holding chamber (62) and which opens after working fluid is supplied from the working fluid supply source to supply working fluid to a second holding chamber (72), advance the second piston (71) toward the cross member (340) and fix same.

Description

クランプ装置Clamping device
　本発明は、サスペンションを構成するサスペンションリンクやサブフレームを構成するメンバ同士を接合する際に用いられるクランプ装置に関する。 The present invention relates to a clamp device used when joining members constituting suspension links and subframes constituting a suspension.
　サスペンションリンクやサスペンションアームにおいて腕となるアームの部分とブッシュなどを取り付ける端部とを接続する際に溶接が行われることがある。そのような際にはアームの部分とブッシュを取り付ける端部とが動かないようにクランプされた状態で接合が行われる。また、溶接の際にクランプを行う他の例としてはサスペンションのサブフレームにおけるサイドメンバとクロスメンバとの接合がある。アームの部分やブッシュを取り付ける端部、またはサイドメンバとクロスメンバをクランプする装置には、例えばシリンダ、ソレノイドバルブ、ピストン、クランプピンなどを備えたものが開示されている（特許文献１参照）。 In a suspension link or suspension arm, welding may be performed when connecting an arm portion serving as an arm and an end portion to which a bush or the like is attached. In such a case, joining is performed in a state where the arm portion and the end portion to which the bush is attached are clamped so as not to move. Further, as another example of performing clamping at the time of welding, there is joining of a side member and a cross member in a subframe of a suspension. For example, a device including a cylinder, a solenoid valve, a piston, a clamp pin, or the like is disclosed as an apparatus for clamping an arm portion or an end portion to which a bush is attached, or a side member and a cross member (see Patent Document 1).
特許３８５４０５１号Japanese Patent No. 3854051
　上記のようなサスペンションリンクにおけるアームと端部の部分、またはサブフレームにおけるサイドメンバとクロスメンバとの接合を行う際には溶接のためにクランプする箇所を２以上設けることがあり、また、クランプのタイミングをずらして行うことがある。そのような場合にはクランプするためのピストンなどの構成を押さえる部位においてずらすための機構を設ける必要がある。しかし、押さえつけるタイミングをずらすための機構が複雑になれば、クランプ装置の費用を高くしてしまい、部品のコストアップにもつながるといった問題がある。 When joining the arm and end portion of the suspension link as described above, or the side member and cross member of the subframe, there may be two or more places to be clamped for welding. May be done at different timings. In such a case, it is necessary to provide a mechanism for shifting at a portion that holds down the configuration of a piston or the like for clamping. However, if the mechanism for shifting the pressing timing is complicated, there is a problem that the cost of the clamping device is increased and the cost of the parts is increased.
　そこで本発明は、上記課題を解決するために発明されたものであり、ワークを押さえつける複数の箇所の押さえつけるタイミングをコントロールする機構が複雑にならないクランプ装置を提供することを目的とする。 Therefore, the present invention was invented in order to solve the above-described problems, and an object of the present invention is to provide a clamping device that does not complicate a mechanism for controlling the timing of pressing a plurality of locations for pressing a workpiece.
　上記目的を達成する本発明に係るクランプ装置は、２以上の目的物を接合する際に前記目的物を固定したり、固定を解除したりする。当該クランプ装置は、作動流体を供給する供給部と、目的物に接近して固定し又は目的物から離間可能な第１押付け部材と、作動流体を収容する空間を備え作動流体の流入及び排出によって第１押付け部材を目的物に接近離間させる第１収容室と、第１収容室に作動流体を流入しまたは第１収容室から作動流体を排出する第１流路と第２流路とを備えた第１クランプ部と、目的物に接近して固定し又は目的物から離間可能な第２押付け部材と、作動流体を収容する空間を備え作動流体の流入及び排出によって第２押付け部材を目的物に接近離間させる第２収容室と、第２収容室に作動流体を流入しまたは第２収容室から作動流体を排出する第３流路と第４流路とを備えた第２クランプ部と、目的物を固定する際に第１収容室から作動流体が供給され、供給部から作動流体が供給された後にバルブを開放して第２収容室に作動流体を供給し第２押し付け部材を目的物に接近させて固定する開放バルブと、を有する。 The clamping device according to the present invention that achieves the above object fixes or releases the object when two or more objects are joined. The clamp device includes a supply portion that supplies a working fluid, a first pressing member that can be fixed close to or away from an object, and a space that accommodates the working fluid. A first storage chamber for moving the first pressing member closer to and away from the object; a first flow path for flowing the working fluid into the first storage chamber or discharging the working fluid from the first storage chamber; and a second flow path. A first pressing member, a second pressing member that can be fixed close to or away from the target object, and a space that accommodates the working fluid, and the second pressing member is provided by the inflow and discharge of the working fluid. A second clamping chamber including a second storage chamber that is moved closer to and away from the second storage chamber, a third flow path that allows the working fluid to flow into or out of the second storage chamber, and a fourth flow path. When fixing the object, working fluid is supplied from the first storage chamber. Is, having a relief valve for fixing is brought closer to the desired product of the second pressing member to supply working fluid to the second storage chamber by opening the valve after the working fluid supplied from the supply unit.
　本発明に係るクランプ装置によれば、目的物を固定する際に第１収容室から作動流体が供給され、供給部から作動流体が供給された後にバルブを開放して第２収容室に作動流体を供給し第２押付け部材を目的物に接近させて固定する開放バルブとを備えるように構成している。開放バルブは第１収容室と供給部から通じる流路を備えた簡便な構造であるため、クランプ部の押さえつけを遅らせる機構を複雑にせず、クランプ装置の低コスト化や、製品であるサスペンションのサブフレームなどの低コスト化に寄与することができる。 According to the clamping device of the present invention, when the object is fixed, the working fluid is supplied from the first storage chamber, and after the working fluid is supplied from the supply unit, the valve is opened to enter the second storage chamber. And an opening valve for fixing the second pressing member close to the object. Since the release valve has a simple structure with a flow path communicating with the first storage chamber and the supply unit, the mechanism for delaying the pressing of the clamp unit is not complicated, the cost of the clamp device is reduced, and the suspension of the product suspension is reduced. This can contribute to cost reduction of frames and the like.
本発明の一実施形態に係るクランプ装置を示す斜視図である。It is a perspective view showing a clamp device concerning one embodiment of the present invention. 同クランプ装置を示す他の斜視図である。It is another perspective view which shows the clamp apparatus. 同クランプ装置を示す正面図である。It is a front view which shows the clamp apparatus. 同クランプ装置を示す背面図である。It is a rear view which shows the clamp apparatus. 同クランプ装置を示す左側面図である。It is a left view which shows the clamp apparatus. 同クランプ装置を示す右側面図である。It is a right view which shows the clamp apparatus. 同クランプ装置を示す平面図である。It is a top view which shows the clamp apparatus. 同クランプ装置を構成する第１クランプ部の第１ピストン及び第１収容室、第２クランプ部の第２ピストン及び第２収納室について示す正面図である。It is a front view shown about the 1st piston and the 1st storage room of the 1st clamp part which constitute the clamp device, and the 2nd piston and the 2nd storage room of the 2nd clamp part. 同クランプ装置の作動流体の流路について示す図である。It is a figure shown about the flow path of the working fluid of the clamp apparatus. ワークをクランプする際の作動流体の流れについて示す流路図である。It is a flow path figure shown about the flow of the working fluid at the time of clamping a workpiece | work. ワークのクランプを解除する際の作動流体の流れについて示す流路図である。It is a flow path figure shown about the flow of the working fluid at the time of releasing the clamp of a workpiece | work. 同クランプ装置によってクランプされるワークの一例である、サスペンションのサブフレームについて示す斜視図である。It is a perspective view shown about the sub-frame of a suspension which is an example of the workpiece | work clamped by the clamp apparatus.
　以下、添付した図面を参照しながら、本発明の実施の形態を説明する。なお、以下の記載は特許請求の範囲に記載される技術的範囲や用語の意義を限定するものではない。また、図面の寸法比率は説明の都合上誇張されており、実際の比率とは異なる場合がある。 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the following description does not limit the technical scope and terms used in the claims. In addition, the dimensional ratios in the drawings are exaggerated for convenience of explanation, and may differ from actual ratios.
　図１Ａ、図１Ｂ、図１Ｃ、図１Ｄ、図１Ｅ、図１Ｆ、図１Ｇは本発明の一実施形態に係るクランプ装置を示す斜視図、正面図、背面図、左側面図、右側面図、及び平面図である。図２は同クランプ装置を構成する第１クランプ部の第１ピストン及び第１収容室、第２クランプ部の第２ピストン及び第２収納室について示す正面図、図３は同クランプ装置の作動流体の流路について示す図である。図４、図５はワークをクランプする際、またはクランプを解除する際の作動流体の流れについて示す流路図、図６は同クランプ装置によってクランプされるワークの一例であるサスペンションのサブフレームについて示す斜視図である。 1A, 1B, 1C, 1D, 1E, 1F, and 1G are a perspective view, a front view, a rear view, a left side view, a right side view, and a clamp device according to an embodiment of the present invention. FIG. FIG. 2 is a front view showing the first piston and the first storage chamber of the first clamp portion and the second piston and the second storage chamber of the second clamp portion constituting the clamp device, and FIG. 3 is a working fluid of the clamp device. It is a figure shown about this flow path. 4 and 5 are flow charts showing the flow of the working fluid when the workpiece is clamped or released, and FIG. 6 shows the subframe of the suspension which is an example of the workpiece clamped by the clamping device. It is a perspective view.
　本実施形態に係るクランプ装置２００は、サスペンションアームやサスペンションリンク、又はサスペンションのサブフレームにおける隣接するメンバを接合する際にワーク同士をクランプするために用いられる。 The clamping device 200 according to the present embodiment is used to clamp workpieces when joining adjacent members in a suspension arm, a suspension link, or a subframe of a suspension.
　（サスペンションのサブフレーム）
次に本実施形態に係るクランプ装置を用いて製造されるサスペンションのサブフレームについて説明する。サブフレーム３００は、平面視した際に井桁状に構成されるが、形状はこれに限定されない。サブフレーム３００は、サイドメンバ３１０、３３０とクロスメンバ３２０、３４０と、リンク取付け部３５０，３６０，３７０，３８０と、を有する。 (Suspension subframe)
Next, the subframe of the suspension manufactured using the clamping device according to this embodiment will be described. The subframe 300 is configured in a cross-beam shape when viewed in plan, but the shape is not limited to this. The subframe 300 includes side members 310 and 330, cross members 320 and 340, and link attachment portions 350, 360, 370, and 380.
　サイドメンバ３１０は、Ｕ字状に成形した板材３１１と、板材３１１のＵ字状断面における開口をふさぐ板材３１２と、板材３１１に取り付けられるカラー３１３，３１４と、を有する。サイドメンバ３３０は、サイドメンバ３１０と同様の構成であるため、説明を省略する。 The side member 310 includes a U-shaped plate material 311, a plate material 312 that closes an opening in the U-shaped cross section of the plate material 311, and collars 313 and 314 attached to the plate material 311. Since the side member 330 has the same configuration as that of the side member 310, description thereof is omitted.
　クロスメンバ３２０、３４０は、一枚の板材を折り曲げて中空の閉断面に形成されている。しかし、これに限定されず、一枚の板材をＵ字状に成形したものを突き合せて接合し、中空の閉断面を構成してもよい。 The cross members 320 and 340 are formed into a hollow closed cross section by bending a single plate material. However, the present invention is not limited to this, and a single plate material formed in a U shape may be butted and joined to form a closed hollow cross section.
　リンク取付け部３５０、３６０、３７０、３８０は、タイヤ側の構成部品と接続されるサスペンションリンクを取り付ける部位である。リンク取付け部３５０、３６０、３７０、３８０は、板材をＵ字状に折り曲げて成形される。リンク取付け部３５０，３６０，３７０，３８０にはサスペンションリンクがボルトとナットなどによって回転可能に取り付けられる。 The link attachment portions 350, 360, 370, and 380 are portions for attaching suspension links to be connected to tire-side components. The link attachment portions 350, 360, 370, and 380 are formed by bending a plate material into a U shape. A suspension link is rotatably attached to the link attachment portions 350, 360, 370, and 380 by bolts and nuts.
　（クランプ装置）
次に本実施形態に係るクランプ装置について説明する。クランプ装置２００は、作動流体供給源１０（供給部に相当）と、クランプ起動部２０と、クランプ解除部３０と、オペレートバルブ４０、５０（切り替えバルブに相当）と、第１クランプ部６０と、第２クランプ部７０と、開放バルブ８０、９０と、作動流体の流通する流路１１～１９、２１～２８と、取付け構造物３１、３２と、柱３３、３４と、を有する。 (Clamping device)
Next, the clamping device according to this embodiment will be described. The clamp device 200 includes a working fluid supply source 10 (corresponding to a supply unit), a clamp activation unit 20, a clamp release unit 30, operating valves 40 and 50 (corresponding to a switching valve), a first clamp unit 60, The second clamp unit 70, the release valves 80 and 90, the flow paths 11 to 19, and 21 to 28 through which the working fluid flows, the attachment structures 31 and 32, and the columns 33 and 34 are included.
　作動流体供給源１０は、クランプを行う第１クランプ部６０または第２クランプ部７０に向けて作動流体の供給させる供給源である。作動流体供給源１０は、ボンベに作動流体である空気や窒素が充填されて構成されるが、これに限定されない。 The working fluid supply source 10 is a supply source that supplies working fluid toward the first clamp unit 60 or the second clamp unit 70 that performs clamping. The working fluid supply source 10 is configured by filling a cylinder with air or nitrogen, which is a working fluid, but is not limited thereto.
　クランプ起動部２０は、作動流体供給源１０からの流路１１を通り、分岐部Ａから流路１２を通ってさらに分岐部Ｂにおいて流路１３を通じた位置に配置される。クランプ起動部２０は、作動流体供給源１０からの作動流体が流路１３を通ることを許容するバルブと、当該バルブの開閉を切り替えるボタンとを備える。作業者などがクランプ起動部２０のボタンを押すことによって流路１３まで流れた流体がさらに下流へと流通できるようになる。クランプ起動部２０を通過した作動流体は、流路１５、１６、１７を通過してオペレートバルブ４０と開放バルブ９０へと流れる。 The clamp activation unit 20 is disposed at a position through the flow path 11 from the working fluid supply source 10, through the flow path 12 from the branch part A, and further through the flow path 13 in the branch part B. The clamp activation unit 20 includes a valve that allows the working fluid from the working fluid supply source 10 to pass through the flow path 13 and a button that switches opening and closing of the valve. When the operator or the like presses the button of the clamp activation unit 20, the fluid that has flowed to the flow path 13 can further flow downstream. The working fluid that has passed through the clamp activator 20 flows through the flow paths 15, 16, and 17 to the operate valve 40 and the release valve 90.
　クランプ解除部３０は、作動流体供給源１０からの流路１１を通り、分岐部Ａから流路１２を通ってさらに分岐部Ｂにおいて流路１４を通じた位置に配置される。クランプ解除部３０は、作動流体供給源１０からの作動流体が流路１４から下流に流れることを許容するバルブと、当該バルブの開閉を切り替えるボタンとを備える。作業者などがクランプ解除部３０のボタンを押すことによって、流路１４まで流れた流体はさらに下流へと流通できるようになる。クランプ解除部３０を通過した作動流体は、流路１８、１９、２１を通過してオペレートバルブ５０と開放バルブ８０へと流れる。 The clamp release unit 30 passes through the flow path 11 from the working fluid supply source 10, and is disposed at a position through the flow path 14 from the branch part A through the flow path 12 and further in the branch part B. The clamp release unit 30 includes a valve that allows the working fluid from the working fluid supply source 10 to flow downstream from the flow path 14 and a button that switches opening and closing of the valve. When an operator or the like presses the button of the clamp release unit 30, the fluid that has flowed to the flow path 14 can further flow downstream. The working fluid that has passed through the clamp release unit 30 passes through the flow paths 18, 19, and 21 and flows to the operate valve 50 and the release valve 80.
　オペレートバルブ４０、５０は、流路を複数設け、作動流体が流通する流路によって第１クランプ部６０や第２クランプ部７０のどの流路に作動流体を流すかを切り替えるバルブである。オペレートバルブ４０には作動流体供給源１０からの流路１１、２２、２３から、オペレートバルブ５０には流路１１、２２、２４から作動流体が常時流れるように構成されている。 The operating valves 40 and 50 are valves that are provided with a plurality of flow paths and switch the flow path of the working fluid through the first clamp part 60 or the second clamp part 70 according to the flow path through which the working fluid flows. The operating valve 40 is configured so that the working fluid always flows from the flow paths 11, 22, and 23 from the working fluid supply source 10 and the operating valve 50 from the flow paths 11, 22, and 24.
　オペレートバルブ４０は、流路２８から作動流体が流通してきた場合には、流路２３からの作動流体を流路６４に流通させて第１クランプ部６０の第１収納室６２へと流通させ、流路６３から排出させる。これに対して、流路１６から作動流体が流れてきた際には、流路２３からの作動流体を流路６３に流通させて第１収納室６２に流通させ、流路６４から排出させる。 The operating valve 40 causes the working fluid from the flow path 23 to flow to the flow path 64 and flow to the first storage chamber 62 of the first clamp portion 60 when the working fluid flows from the flow path 28. The fluid is discharged from the channel 63. On the other hand, when the working fluid flows from the flow path 16, the working fluid from the flow path 23 is circulated through the flow path 63 to the first storage chamber 62 and is discharged from the flow path 64.
　オペレートバルブ５０は、流路１９から作動流体が流通してきた場合には、流路２４からの作動流体を流路７４に流通させて第２クランプ部７０の第２収納室７２に流通させ、流路７３から排出させる。これに対して流路２６から作動流体が流通してきた場合には、流路２４からの作動流体を流路７３に流通させて第２収納室７２に流通させ、流路７４から排出させる。 The operating valve 50 causes the working fluid from the flow path 24 to flow to the flow path 74 and flow to the second storage chamber 72 of the second clamp unit 70 when the working fluid flows from the flow path 19. Discharge from the path 73. On the other hand, when the working fluid flows from the flow path 26, the working fluid from the flow path 24 flows through the flow path 73, flows into the second storage chamber 72, and is discharged from the flow path 74.
　第１クランプ部６０は、第１ピストン６１（第１押付け部材に相当）と、第１収納室６２と、流路６３、６４（第１流路、第２流路に相当）と、を有する。第１ピストン６１は、押圧部６１ａと連結部６１ｂとクランパ６１ｃとストッパ６１ｄ、６１ｅとを有する。 The first clamp unit 60 includes a first piston 61 (corresponding to a first pressing member), a first storage chamber 62, and flow paths 63 and 64 (corresponding to a first flow path and a second flow path). . The first piston 61 includes a pressing portion 61a, a connecting portion 61b, a clamper 61c, and stoppers 61d and 61e.
　押圧部６１ａは、流路６３または流路６４からの作動流体によって第１収納室６２の内部を移動する。クランパ６１ｃは、棒状の連結部６１ｂによって押圧部６１ａの動きと連動する。クランパ６１ｃは、本実施形態においてクランプする部材が井桁フレームのメンバであるためにクランプする部分が断面においてＵ字状に形成されているが、形状はこれに限定されない。ストッパ６１ｄ、６１ｅは、第１ピストン６１を第１収納室６２において進退移動させるために第１収納室６２の上下端部と当接して作動流体が流路２５、６３，６４に流通するスペースを確保できるようにする。 The pressing part 61 a moves inside the first storage chamber 62 by the working fluid from the flow path 63 or the flow path 64. The clamper 61c is interlocked with the movement of the pressing portion 61a by a rod-like connecting portion 61b. In the clamper 61c, the member to be clamped in this embodiment is a member of a cross beam frame, so the clamped portion is formed in a U shape in cross section, but the shape is not limited to this. The stoppers 61d and 61e contact the upper and lower ends of the first storage chamber 62 to move the first piston 61 forward and backward in the first storage chamber 62, and provide a space for the working fluid to flow through the flow paths 25, 63, and 64. Make sure it can be secured.
　第１収納室６２は、流路２５、６３、６４と接続する接続部６２ａ、６２ｂ、６２ｃと、第１ピストン６１の連結部６１ｂを摺動可能に配置する貫通孔６２ｄを備える。接続部６２ａは、接続部６２ｂ、６２ｃと第１ピストン６１の押圧部６１ａを跨いで配置される。流路６３は接続部６２ａにて接続され、第１ピストン６１をワークに接近させる際には流路６３から第１収納室６２に作動流体を流通させる。第１ピストン６１をワークから離間させる際には第１収納室６２内の作動流体を流路６３から排出させる。 The first storage chamber 62 includes connection portions 62a, 62b, and 62c that are connected to the flow paths 25, 63, and 64, and a through hole 62d in which the connection portion 61b of the first piston 61 is slidably disposed. The connection part 62 a is disposed across the connection parts 62 b and 62 c and the pressing part 61 a of the first piston 61. The flow path 63 is connected by the connection part 62a, and when making the 1st piston 61 approach a workpiece | work, it distribute | circulates a working fluid from the flow path 63 to the 1st storage chamber 62. FIG. When the first piston 61 is separated from the work, the working fluid in the first storage chamber 62 is discharged from the flow path 63.
　流路６４は接続部６２ｂにて接続され、第１ピストン６１をワークに接近させる際には第１収納室６２内の作動流体を流路６４から排出させる。第１ピストン６１をワークから離間させる際には作動流体を流路６４から第１収納室６２に流通させる。流路２５は接続部６２ｃに接続されて、第１収納室６２から排出される作動流体を開放バルブ９０へと流通させる。 The flow path 64 is connected by the connection part 62b, and when making the 1st piston 61 approach a workpiece | work, the working fluid in the 1st storage chamber 62 is discharged | emitted from the flow path 64. FIG. When the first piston 61 is separated from the work, the working fluid is circulated from the flow path 64 to the first storage chamber 62. The flow path 25 is connected to the connection portion 62 c and causes the working fluid discharged from the first storage chamber 62 to flow to the release valve 90.
　貫通孔６２ｄは、第１ピストン６１の連結部６１ｂを摺動可能とし、かつ作動流体が第１収納室６２から洩れないように構成している。貫通孔６２ｄにはＯリングなどのシール部品が取り付けられているが、シール部品はこれに限定されない。 The through-hole 62 d is configured so that the connecting portion 61 b of the first piston 61 can slide and the working fluid does not leak from the first storage chamber 62. A seal component such as an O-ring is attached to the through hole 62d, but the seal component is not limited to this.
　第２クランプ部７０は、第２ピストン７１（第２押付け部材に相当）と、第２収納室７２と、流路７３、７４（第３流路、第４流路に相当）と、を有する。第２ピストン７１と流路７３、７４の構成は第１クランプ部６０の第１ピストン６１、流路６３，６４と同様であるため、説明を省略する。第２収納室７２は、流路２７、７３、７４と接続する接続部７２ａ、７２ｂ、７２ｃと、貫通孔７２ｄと、を有する。貫通孔７２ｄは、第１収納室６２の貫通孔６２ｄと同様であるため、説明を省略する。 The second clamp part 70 includes a second piston 71 (corresponding to a second pressing member), a second storage chamber 72, and flow paths 73 and 74 (corresponding to a third flow path and a fourth flow path). . Since the structure of the 2nd piston 71 and the flow paths 73 and 74 is the same as that of the 1st piston 61 and the flow paths 63 and 64 of the 1st clamp part 60, description is abbreviate | omitted. The second storage chamber 72 has connection portions 72a, 72b, 72c connected to the flow paths 27, 73, 74, and a through hole 72d. Since the through hole 72d is similar to the through hole 62d of the first storage chamber 62, the description thereof is omitted.
　流路７３は接続部７２ａと接続され、第２ピストン７１をワークに接近させる際には第２収納室７２内の作動流体を流路７３から第２収納室７２に流通させる。第２ピストン７１をワークから離間させる際には第２収納室７２内の作動流体を流路７３から排出させる。 The flow path 73 is connected to the connection portion 72 a, and when the second piston 71 approaches the work, the working fluid in the second storage chamber 72 is circulated from the flow path 73 to the second storage chamber 72. When the second piston 71 is separated from the work, the working fluid in the second storage chamber 72 is discharged from the flow path 73.
　流路７４は接続部７２ｂと接続され、第２ピストン７１をワークに接近させる際には第２収納室７２内の作動流体を流路７４から排出させる。第２ピストンをワークから離間させる際には、作動流体を流路７４から第２収納室７２に流通させる。流路２７は接続部７２ｃにおいて接続され、第２収納室７２から排出された作動流体を開放バルブ８０へと流通させる。 The flow path 74 is connected to the connection portion 72b, and when the second piston 71 approaches the work, the working fluid in the second storage chamber 72 is discharged from the flow path 74. When the second piston is separated from the work, the working fluid is circulated from the flow path 74 to the second storage chamber 72. The flow path 27 is connected at the connection portion 72 c and causes the working fluid discharged from the second storage chamber 72 to flow to the release valve 80.
　開放バルブ８０（他の開放バルブに相当）は、作動流体を流入させる流路２１と流路２７と接続され、作動流体を流出させる流路２８と接続される。開放バルブ８０は、流路２１と流路２７から作動流体が流通した際にバルブを開放して作動流体を流路２８に流通させる。 The open valve 80 (corresponding to another open valve) is connected to the flow path 21 and the flow path 27 through which the working fluid flows, and is connected to the flow path 28 from which the working fluid flows out. When the working fluid flows from the flow path 21 and the flow path 27, the release valve 80 opens the valve to flow the working fluid to the flow path 28.
　開放バルブ９０は、作動流体を流入させる流路１７と流路２５と接続され、作動流体を流出させる流路２６と接続される。開放バルブ９０は、流路１７と流路２５から作動流体が流通した際にバルブを開放して作動流体を流路２６に流通させる。開放バルブ８０、９０は、アンドバルブと呼ばれることもある。 The open valve 90 is connected to the flow path 17 and the flow path 25 for flowing the working fluid, and is connected to the flow path 26 for flowing the working fluid. When the working fluid flows from the flow path 17 and the flow path 25, the release valve 90 opens the valve to flow the working fluid to the flow path 26. The opening valves 80 and 90 are sometimes called AND valves.
　取付け構造物３１、３２は、サイドメンバ３１０またはクロスメンバ３２０の長手方向の所定の位置でクランプできるように、第１クランプ部６０と第２クランプ部７０を取り付ける構造物である。第１クランプ部６０は、サイドメンバ３１０をクランプし、取付け構造物３１は柱３３、３４と一体に構成され、第１クランプ部６０を上部において取付けている。第２クランプ部７０は、クロスメンバ３２０をクランプし、取付け構造物３２は柱３３、３４と一体に構成され、第２クランプ部７０を上部において取付けている。 The attachment structures 31 and 32 are structures to which the first clamp part 60 and the second clamp part 70 are attached so that they can be clamped at a predetermined position in the longitudinal direction of the side member 310 or the cross member 320. The first clamp part 60 clamps the side member 310, the attachment structure 31 is formed integrally with the pillars 33 and 34, and the first clamp part 60 is attached at the upper part. The 2nd clamp part 70 clamps the cross member 320, the attachment structure 32 is comprised integrally with the pillars 33 and 34, and is attaching the 2nd clamp part 70 in the upper part.
　（ワークのクランプ、クランプの解除）
次に図４を参照してクランプ装置２００を用いたワークの接合について説明する。まず、ワークをクランプする場合について説明する。作動流体供給源１０から作動流体が流通すると、流路１１、２２、２３、２４を通ってオペレートバルブ４０、５０のところまで流れる（矢印ａ１からａ５参照）。 (Workpiece clamp, clamp release)
Next, the joining of the workpieces using the clamping device 200 will be described with reference to FIG. First, a case where a workpiece is clamped will be described. When the working fluid flows from the working fluid supply source 10, it flows through the flow paths 11, 22, 23, 24 to the operating valves 40, 50 (see arrows a 1 to a 5).
　一方、流路１２、１３を流通する作動流体は、クランプ起動部２０のボタンの押下によって流路１５、１６、１７に流通する（矢印ａ６からａ９参照）。 On the other hand, the working fluid that circulates in the flow paths 12 and 13 circulates in the flow paths 15, 16, and 17 by pressing a button of the clamp activation unit 20 (see arrows a <b> 6 to a <b> 9).
　流路１６から作動流体がオペレータバルブ４０に流通することによって、流路２３に流通する作動流体は流路６３に流れて第１収納室６２に流れ、第１ピストン６１をワークであるサイドメンバ３３０に接近させる方向に移動させる（矢印ａ１０参照）。 When the working fluid flows from the flow path 16 to the operator valve 40, the working fluid flowing to the flow path 23 flows to the flow path 63 and flows to the first storage chamber 62, and the first piston 61 passes through the side member 330 that is a workpiece. (See arrow a10).
　第１収納室６２の作動流体は、流路６４、２５から排出される（矢印ａ１１、ａ１２参照）。流路２５への作動流体は、第１ピストン６１のストッパ６１ｅが第１収納室６２の下端に当接した際に流通するように構成されている。流路２５を流れる作動流体は開放バルブ９０へと流れ、流路１７からの作動流体が開放バルブ９０に同時に流れることによって流路２６に作動流体を流通され、オペレートバルブ５０へと流れる（矢印ａ１３参照）。 The working fluid in the first storage chamber 62 is discharged from the flow paths 64 and 25 (see arrows a11 and a12). The working fluid to the flow path 25 is configured to circulate when the stopper 61e of the first piston 61 contacts the lower end of the first storage chamber 62. The working fluid flowing in the flow path 25 flows to the release valve 90, and the working fluid from the flow path 17 flows simultaneously to the release valve 90, whereby the working fluid is circulated through the flow path 26 and flows to the operate valve 50 (arrow a13). reference).
　流路２６からオペレートバルブ５０へ作動流体が流れることによって、流路２４からの流体は流路７３へと流れる（矢印ａ１４参照）。流路７３からの作動流体は第２収納室７２へと流れ、第２ピストン７１をワークであるクロスメンバ３２０に接近させる方向に移動させる。第２収納室７２内の作動流体は流路７４から排出される（矢印ａ１５参照）。これによって、サスペンションのサブフレーム３００のサイドメンバ３３０を第１ピストン６１が固定し、サイドメンバ３３０の固定に遅れて第２ピストン７２がクロスメンバ３４０を固定することになり、クランプ作業が終了する。この後に溶接ロボットや人手によってサイドメンバ３３０とクロスメンバ３４０の当接箇所が溶接される。 When the working fluid flows from the flow path 26 to the operating valve 50, the fluid from the flow path 24 flows to the flow path 73 (see arrow a14). The working fluid from the flow path 73 flows into the second storage chamber 72 and moves the second piston 71 in a direction to approach the cross member 320 that is a workpiece. The working fluid in the second storage chamber 72 is discharged from the flow path 74 (see arrow a15). As a result, the first piston 61 fixes the side member 330 of the subframe 300 of the suspension, and the second piston 72 fixes the cross member 340 after the side member 330 is fixed, and the clamping operation is completed. Thereafter, the contact portion between the side member 330 and the cross member 340 is welded by a welding robot or manually.
　次に図５を参照してワークのクランプの解除について説明する。まず、作動流体供給源１０から作動流体が流路１１、２２、２３、２４を通ってオペレートバルブ４０、５０のところまで流れる点はクランプの時と同じである（矢印ｂ１からｂ５参照）。 Next, the work clamp release will be described with reference to FIG. First, the point that the working fluid flows from the working fluid supply source 10 through the flow paths 11, 22, 23, 24 to the operating valves 40, 50 is the same as that at the time of clamping (see arrows b 1 to b 5).
　一方、流路１２、１４を流通する作動流体は、クランプ解除部３０のボタンの押下によって、流路１８、１９、２１に流通する（矢印ｂ６からｂ９参照）。 On the other hand, the working fluid flowing through the flow paths 12 and 14 flows through the flow paths 18, 19, and 21 when the button of the clamp release unit 30 is pressed (see arrows b <b> 6 to b <b> 9).
　流路１９から作動流体がオペレータバルブ５０に流通することによって、流路２４に流通する作動流体は流路７４に流れて第２収納室７２に流れ、第２ピストン７１をワークであるクロスメンバ３４０から離間させる方向に移動させる（矢印ｂ１０参照）。 When the working fluid flows from the flow path 19 to the operator valve 50, the working fluid flowing to the flow path 24 flows to the flow path 74 and flows to the second storage chamber 72, and the second piston 71 is moved to the cross member 340 as a workpiece. (See arrow b10).
　第２収納室７２の作動流体は、流路７３、２７から排出される（矢印ｂ１１、ｂ１２参照）。流路２７への作動流体は、第２ピストン７１が第２収納室７２のストッパ７１ｄが第２収納室７２の上端に当接した際に流通するように構成している。流路２７を流れる作動流体は開放バルブ８０へと流れ、流路２１から作動流体が開放バルブ８０に同時に流れることによって流路２８に作動流体が流通し、オペレートバルブ４０へと流れる（矢印ｂ１３参照）。 The working fluid in the second storage chamber 72 is discharged from the flow paths 73 and 27 (see arrows b11 and b12). The working fluid to the flow path 27 is configured to circulate when the second piston 71 contacts the upper end of the second storage chamber 72 with the stopper 71 d of the second storage chamber 72. The working fluid flowing in the flow path 27 flows to the release valve 80, and the working fluid flows from the flow path 21 to the release valve 80 simultaneously, whereby the working fluid flows in the flow path 28 and flows to the operate valve 40 (see arrow b13). ).
　流路２８からオペレータバルブ４０に作動流体が流れることによって、流路２３からの流体は流路６４へと流れる（矢印ｂ１４参照）。流路６４からの作動流体は第１収納室６２へと流れ、第１ピストン６１をワークであるサイドメンバ３１０から離間させる方向に移動させる。第１収納室６２内の作動流体は流路６３から排出される（矢印ｂ１５参照）。これによって、サスペンションのサブフレーム３００のクロスメンバ３４０から第２ピストン７１が離間し、その後にサイドメンバ３３０から第１ピストン６１から離間し、クランプの解除作業が終了する。その後、サイドメンバ３１０、３３０とクロスメンバ３２０、３４０との残された当接箇所の溶接作業が上記と同様にクランプ装置２００を用いて行われる。 When the working fluid flows from the flow path 28 to the operator valve 40, the fluid from the flow path 23 flows to the flow path 64 (see arrow b14). The working fluid from the flow path 64 flows into the first storage chamber 62 and moves the first piston 61 in a direction in which the first piston 61 is separated from the side member 310 that is a workpiece. The working fluid in the first storage chamber 62 is discharged from the flow path 63 (see arrow b15). As a result, the second piston 71 is separated from the cross member 340 of the subframe 300 of the suspension, and thereafter is separated from the first piston 61 from the side member 330, and the releasing operation of the clamp is completed. Thereafter, the welding operation of the remaining contact portions between the side members 310 and 330 and the cross members 320 and 340 is performed using the clamp device 200 in the same manner as described above.
　次に本実施形態に係る作用効果について説明する。サスペンションリンクなどの部品においてアーム部分とブッシュを圧入する部分とを溶接接合する場合、アーム部分とブッシュ圧入部分とをクランプして固定することがある。また、クランプの際にアーム部分とブッシュ圧入部分とが位置ずれなどしたりしないように、固定する部分は、クランプするタイミングをずらすことがある。クランプするタイミングをずらす機構を設ける場合、タイミングをずらす機構が複雑になればクランプ装置のコストが上昇して製品の価格アップにもつながってしまい好ましくないといった問題がある。 Next, functions and effects according to this embodiment will be described. When parts such as a suspension link are welded to an arm portion and a portion into which a bush is press-fitted, the arm portion and the bush press-in portion are sometimes clamped and fixed. Further, the clamping timing may be shifted in the fixing portion so that the arm portion and the bush press-fitting portion are not displaced during clamping. When a mechanism for shifting the timing of clamping is provided, there is a problem that if the mechanism for shifting the timing becomes complicated, the cost of the clamping device increases, leading to an increase in the price of the product.
　これに対し、本実施形態に係るクランプ装置２００によれば、作動流体供給源１０と、第１クランプ部６０と、第２クランプ部７０と、第１ピストン６１がサイドメンバ３３０に接近する際に第１収容室６２から作動流体が供給され、サイドメンバ３３０、クロスメンバ３４０を固定する際に作動流体供給源１０から作動流体が供給された後にバルブを開放して第２収容室７２に作動流体を供給し第２ピストン７２をクロスメンバ３４０に接近させて固定する開放バルブ９０と、を有するように構成している。 On the other hand, according to the clamping device 200 according to the present embodiment, when the working fluid supply source 10, the first clamping unit 60, the second clamping unit 70, and the first piston 61 approach the side member 330. When the working fluid is supplied from the first storage chamber 62 and the working fluid is supplied from the working fluid supply source 10 when the side member 330 and the cross member 340 are fixed, the valve is opened and the working fluid is supplied to the second storage chamber 72. And an opening valve 90 for fixing the second piston 72 close to the cross member 340.
　開放バルブ９０は、流路１７と流路２５から作動流体が流れた際に流路２６に向けて作動流体を流通させるという簡便な構造を採用している。そのため、クランプ装置２００における第１クランプ部６０と第２クランプ部７０のクランプのタイミングをずらす機構を極めて簡便な構造で実現することができ、クランプ装置２００の低コスト化や、製品であるサスペンションのサブフレームなどの低コスト化に寄与することができる。 The opening valve 90 adopts a simple structure in which the working fluid is circulated toward the flow channel 26 when the working fluid flows from the flow channel 17 and the flow channel 25. Therefore, it is possible to realize a mechanism for shifting the clamp timing of the first clamp unit 60 and the second clamp unit 70 in the clamp device 200 with an extremely simple structure, and to reduce the cost of the clamp device 200 and the suspension of the product. This can contribute to cost reduction of subframes and the like.
　また、クランプ装置２００は、サイドメンバ３３０、クロスメンバ３４０から第１ピストン６１、第２ピストン７１を離間させる際に第２収容室７２から作動流体が供給され、作動流体供給源１０から作動流体が供給された後にバルブを開放して第１収容室６１に作動流体を供給し第１ピストン６１をサイドメンバ３３０から離間させる開放バルブ８０をさらに有するように構成している。開放バルブ８０についても開放バルブ９０と同様に作動流体供給源１０からの作動流体と第２収容室７２から作動流体が供給された後に第１収容室６１に作動流体を流通させるオペレートバルブ４０に作動流体を流すという簡便な構造であるため、開放バルブ９０と同様にクランプ装置２００の低コスト化や、製品であるサスペンションのサブフレームなどの低コスト化に寄与することができる。 Further, when the first piston 61 and the second piston 71 are separated from the side member 330 and the cross member 340, the clamping device 200 is supplied with the working fluid from the second storage chamber 72, and the working fluid is supplied from the working fluid supply source 10. After being supplied, the valve is opened to supply a working fluid to the first storage chamber 61 and further to have an opening valve 80 for separating the first piston 61 from the side member 330. Similarly to the release valve 90, the release valve 80 is also operated by the operating valve 40 for supplying the working fluid from the working fluid supply source 10 and the working fluid from the second storage chamber 72 to flow the working fluid to the first storage chamber 61. Since it has a simple structure of flowing a fluid, it can contribute to the cost reduction of the clamping device 200 and the cost of the suspension subframe as a product, like the open valve 90.
　また、クランプ装置２００は、流路６３，６４と作動流体を流入させる流路１６、２８を接続されるオペレートバルブ４０と、流路７３、７４と作動流体を流入させる流路１９、２６と接続されるオペレートバルブ５０と、を有し、オペレートバルブ４０、５０は作動流体が流路１６、２６または流路２８、１９から流入するかによって流路６３、７３または流路６４、７４のいずれかから作動流体を第１収容室６２、第２収容室７２に向けて流通させるかを切り替えるように構成している。オペレートバルブ４０、５０であれば、電磁的な機構を備えるとしても作動流体の流れによって流路の切り替えを行うことができるため、電磁弁に使用されるエネルギーを省力化でき、省エネルギー化を図ることができる。 Further, the clamping device 200 is connected to an operating valve 40 connected to the flow paths 63 and 64 and the flow paths 16 and 28 for flowing the working fluid, and to the flow paths 73 and 74 and the flow paths 19 and 26 for flowing the working fluid. An operating valve 50, and the operating valves 40, 50 are either flow paths 63, 73 or flow paths 64, 74 depending on whether the working fluid flows from the flow paths 16, 26 or the flow paths 28, 19. From this, it is configured to switch whether the working fluid is circulated toward the first storage chamber 62 and the second storage chamber 72. If the operating valves 40 and 50 are equipped with an electromagnetic mechanism, the flow path can be switched by the flow of the working fluid, so that the energy used for the electromagnetic valve can be saved and energy saving can be achieved. Can do.
　また、本実施形態に係るクランプ装置２００は、サスペンションのサブフレームにおいてクロスメンバ３２０とサイドメンバ３１０との接合を行う際に利用することができる。 Also, the clamping device 200 according to the present embodiment can be used when the cross member 320 and the side member 310 are joined in the subframe of the suspension.
　本発明は上述した実施形態に限定されず、特許請求の範囲において種々の変更が可能である。 The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the claims.
　上記では、作動流体が空気や窒素などの流体を用いる実施形態について説明したが、これに限定されず、油圧などを利用してもよい。また、上記では製品であるサスペンションのサブフレームを把持するクランプ部が第１クランプ部６０と第２クランプ部７０の２箇所である実施形態について説明したが、これに限定されない。すなわち、クランプ部を開放バルブと共に３箇所以上で構成することによって、製品の複数の部位を３箇所以上のクランプ部によって順次遅らせてクランプすることができる。 In the above description, an embodiment in which the working fluid uses a fluid such as air or nitrogen has been described. However, the present invention is not limited to this, and hydraulic pressure or the like may be used. Further, in the above description, the embodiment has been described in which the clamp portion that holds the sub-frame of the suspension, which is a product, is the first clamp portion 60 and the second clamp portion 70, but is not limited thereto. That is, by configuring the clamp portion with three or more locations together with the opening valve, it is possible to sequentially delay and clamp a plurality of parts of the product with the three or more clamp portions.
１０　作動流体供給源（供給部）、
２０　クランプ起動部、
２００　クランプ装置、
３０　クランプ解除部、
３００　サスペンションのサブフレーム、
３１０、３３０　サイドメンバ、
３２０、３４０　クロスメンバ、
４０、５０　オペレートバルブ（切り替えバルブ）、
６０　第１クランプ部、
７０　第２クランプ部、
８０　開放バルブ（他の開放バルブ）、
９０　開放バルブ、
１１～１９、２１～２８　流路、
１６、１９、２６、２８　（流入側）流路、
６３　（第１）流路、
６４　（第２）流路、
７３　（第３）流路、
７４　（第４）流路、
ａ１からａ１５　クランプ時の作動流体の流れ、
ｂ１からｂ１５　クランプ解除時の作動流体の流れ、 10 Working fluid supply source (supply part),
20 Clamp starter,
200 clamping device,
30 Clamp release part,
300 suspension subframe,
310, 330 side members,
320, 340 cross member,
40, 50 operated valve (switching valve),
60 1st clamp part,
70 second clamp part,
80 Opening valve (other opening valve),
90 Opening valve,
11-19, 21-28 flow path,
16, 19, 26, 28 (inflow side) flow path,
63 (first) flow path,
64 (second) flow path,
73 (Third) flow path,
74 (fourth) flow path,
a1 to a15 Flow of working fluid during clamping,
b1 to b15 The flow of the working fluid when releasing the clamp,

Claims (4)

  1. 　２以上の目的物を接合する際に前記目的物を固定したり、固定を解除したりするクランプ装置であって、
    　作動流体を供給する供給部と、
    　前記目的物に接近して固定し又は前記目的物から離間可能な第１押付け部材と、作動流体を収容する空間を備え作動流体の流入及び排出によって前記第１押付け部材を前記目的物に接近離間させる第１収容室と、前記第１収容室に作動流体を流入しまたは前記第１収容室から作動流体を排出する第１流路と第２流路とを備えた第１クランプ部と、
    　前記目的物に接近して固定し又は前記目的物から離間可能な第２押付け部材と、作動流体を収容する空間を備え作動流体の流入及び排出によって前記第２押付け部材を前記目的物に接近離間させる第２収容室と、前記第２収容室に作動流体を流入しまたは前記第２収容室から作動流体を排出する第３流路と第４流路とを備えた第２クランプ部と、
    　前記目的物を固定する際に前記第１収容室から作動流体が供給され、前記供給部から作動流体が供給された後にバルブを開放して前記第２収容室に作動流体を供給し前記第２押し付け部材を前記目的物に接近させて固定する開放バルブと、を有するクランプ装置。     A clamping device for fixing or releasing the object when joining two or more objects,
    A supply for supplying a working fluid;
    A first pressing member that can be fixed close to or away from the object and a space for accommodating the working fluid, and the first pressing member is moved closer to and away from the object by inflow and discharge of the working fluid. A first clamping chamber having a first flow path and a first flow path for flowing the working fluid into the first storage chamber or discharging the working fluid from the first storage chamber;
    A second pressing member that can be fixed close to or away from the object and a space for accommodating the working fluid, and the second pressing member is moved closer to and away from the object by inflow and discharge of the working fluid. A second clamping chamber comprising a second storage chamber, a third flow path for flowing the working fluid into the second storage chamber or discharging the working fluid from the second storage chamber, and a fourth flow path;
    When the object is fixed, the working fluid is supplied from the first storage chamber, and after the working fluid is supplied from the supply section, the valve is opened to supply the working fluid to the second storage chamber, and the second And a release valve for fixing the pressing member close to the object.
  2. 　前記目的物の固定を解除する際に前記第２収容室から作動流体が供給され、前記供給部から作動流体が供給された後にバルブを開放して前記第１収容室に作動流体を供給し前記第１押付け部材を前記目的物から離間させる他の開放バルブと、をさらに有する請求項１に記載のクランプ装置。 When releasing the fixation of the object, the working fluid is supplied from the second storage chamber, and after the working fluid is supplied from the supply unit, the valve is opened to supply the working fluid to the first storage chamber. The clamp device according to claim 1, further comprising: another release valve that separates the first pressing member from the object.
  3. 　前記第１流路及び前記第２流路または前記第３流路及び前記第４流路と作動流体が流入する２以上の流入側流路と接続され、作動流体が流入する前記流入側流路に応じて作動流体を前記第１流路若しくは前記第２流路または前記第３流路若しくは前記第４流路に切り替えて流通させる切り替えバルブと、をさらに有する請求項１または２に記載のクランプ装置。 The inflow side flow path that is connected to the first flow path and the second flow path or the third flow path and the fourth flow path and two or more inflow side flow paths into which the working fluid flows, and into which the working fluid flows. 3. The clamp according to claim 1, further comprising: a switching valve that switches the working fluid to the first flow path, the second flow path, the third flow path, or the fourth flow path according to the flow rate. apparatus.
  4. 　サスペンションリンク、サスペンションアーム、サスペンションにおけるメンバとメンバとの接合の際に部材を固定するために用いられる請求項１から３のいずれか１項に記載のクランプ装置。 The clamping device according to any one of claims 1 to 3, wherein the clamping device is used for fixing a member when joining a suspension link, a suspension arm, and a member in the suspension.
PCT/JP2014/059586 2014-03-31 2014-03-31 Clamping device WO2015151212A1 (en)

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Application Number Priority Date Filing Date Title
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4642019A (en) * 1984-12-19 1987-02-10 General Signal Corporation Hydraulic control system and valve therefor
JPS62202992U (en) * 1986-06-12 1987-12-24
JPH0780688A (en) * 1993-09-09 1995-03-28 Nissan Motor Co Ltd Method for clamping vehicle body panel
JPH09505875A (en) * 1993-12-03 1997-06-10 アプライド・パワー・インコーポレイテッド Hydraulic circuit
JP2002213403A (en) * 2001-01-18 2002-07-31 Ckd Corp Sequentially operated-cylinder system
US20040154290A1 (en) * 2003-02-12 2004-08-12 Texas Hydraulics, Inc. Sequential hydraulic extension system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4642019A (en) * 1984-12-19 1987-02-10 General Signal Corporation Hydraulic control system and valve therefor
JPS62202992U (en) * 1986-06-12 1987-12-24
JPH0780688A (en) * 1993-09-09 1995-03-28 Nissan Motor Co Ltd Method for clamping vehicle body panel
JPH09505875A (en) * 1993-12-03 1997-06-10 アプライド・パワー・インコーポレイテッド Hydraulic circuit
JP2002213403A (en) * 2001-01-18 2002-07-31 Ckd Corp Sequentially operated-cylinder system
US20040154290A1 (en) * 2003-02-12 2004-08-12 Texas Hydraulics, Inc. Sequential hydraulic extension system

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