JPH0365629U - - Google Patents
Info
- Publication number
- JPH0365629U JPH0365629U JP12716189U JP12716189U JPH0365629U JP H0365629 U JPH0365629 U JP H0365629U JP 12716189 U JP12716189 U JP 12716189U JP 12716189 U JP12716189 U JP 12716189U JP H0365629 U JPH0365629 U JP H0365629U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic circuit
- piston
- cylinder
- pressure booster
- clamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 239000010727 cylinder oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Jigs For Machine Tools (AREA)
Description
第１図は本考案のクランプ装置の一実施例を示
す要部断面図、第２図は本考案のクランプ装置の
油圧回路図、第３図は従来のクランプ装置の要部
断面図である。
１……基準部材、２……クランプ本体、３……
シリンダ、４……ピストン、４ａ……頂部、５…
…連通孔、８……作動油供給源、９……クランプ
シリンダ用油圧回路、１０……クランプシリンダ
、１１……作動切換弁、１２……ピストン作動用
油圧回路、１３……パイロツトチエツク弁、１４
……増圧器用油圧回路、１５……切換弁、１６…
…増圧器。
FIG. 1 is a sectional view of a main part of an embodiment of the clamping device of the present invention, FIG. 2 is a hydraulic circuit diagram of the clamping device of the present invention, and FIG. 3 is a sectional view of a main part of a conventional clamping device. 1... Reference member, 2... Clamp body, 3...
Cylinder, 4... Piston, 4a... Top, 5...
... Communication hole, 8 ... Hydraulic oil supply source, 9 ... Hydraulic circuit for clamp cylinder, 10 ... Clamp cylinder, 11 ... Operation switching valve, 12 ... Hydraulic circuit for piston operation, 13 ... Pilot check valve, 14
...Hydraulic circuit for pressure booster, 15...Switching valve, 16...
...pressure booster.
Claims (1)
して接離方向へ往復移動するクランプシリンダと
、クランプ本体に並設した複数のシリンダと、各
々のシリンダ底部を互に連通する連通孔と、クラ
ンプ時にワークと当接する頂部を有し、かつ出没
可能にシリンダに嵌挿するピストンと、シリンダ
及び連通孔内に充満してピストンの基端に作用す
る作動油とを具備し、クランプシリンダによりク
ランプ本体を基準部材へ接近する方向へ移動して
ピストン頂部と基準部材間にワークをクランプす
るクランプ装置において、クランプシリンダ用油
圧回路から分岐してクランプ本体に設けた連通孔
に接続するピストン作動用油圧回路と、ピストン
作動用油圧回路をアンクランプ時に開放し、かつ
クランプ時において所定時間経過後に閉鎖するチ
エツク弁と、ピストン作動用油圧回路のチエツク
弁とクランプ本体との間に設けた増圧器と、クラ
ンプシリンダ用油圧回路から分岐して増圧器に作
動油を供給する増圧器用油圧回路と、増圧器用油
圧回路に設けられ、増圧器をアンクランプ時に停
止させ、かつクランプ時において所定時間経過後
に加圧作動するように増圧器用油圧回路を切換え
る切換弁を具備することを特徴とするクランプ装
置。 A clamp cylinder that moves the clamp body back and forth in the direction toward and away from a reference member on which a work is placed, a plurality of cylinders installed in parallel on the clamp body, a communication hole that communicates the bottom of each cylinder with each other, and a It has a piston that has a top that comes into contact with the workpiece and is retractably inserted into the cylinder, and hydraulic oil that fills the cylinder and the communication hole and acts on the base end of the piston. In a clamp device that moves in a direction approaching a reference member and clamps a workpiece between the top of the piston and the reference member, a hydraulic circuit for operating the piston is branched from a hydraulic circuit for the clamp cylinder and connected to a communication hole provided in the clamp body. , a check valve that opens the piston operating hydraulic circuit when unclamping and closes after a predetermined period of time when clamping; a pressure intensifier provided between the check valve of the piston operating hydraulic circuit and the clamp body; and a clamp cylinder. A pressure booster hydraulic circuit that branches from the pressure booster hydraulic circuit and supplies hydraulic oil to the pressure booster, and a pressure booster hydraulic circuit that stops the pressure booster when unclamping and pressurizes after a predetermined period of time when clamping. A clamp device comprising a switching valve that switches a pressure booster hydraulic circuit to operate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12716189U JPH0365629U (en) | 1989-11-01 | 1989-11-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12716189U JPH0365629U (en) | 1989-11-01 | 1989-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0365629U true JPH0365629U (en) | 1991-06-26 |
Family
ID=31674935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12716189U Pending JPH0365629U (en) | 1989-11-01 | 1989-11-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0365629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009085906A (en) * | 2007-10-03 | 2009-04-23 | Shin Nippon Tokki Co Ltd | Workpiece fixing device, and performance test device having workpiece fixing device |
-
1989
- 1989-11-01 JP JP12716189U patent/JPH0365629U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009085906A (en) * | 2007-10-03 | 2009-04-23 | Shin Nippon Tokki Co Ltd | Workpiece fixing device, and performance test device having workpiece fixing device |
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