CN100336629C - Clamp head capable of measuring tension - Google Patents
Clamp head capable of measuring tension Download PDFInfo
- Publication number
- CN100336629C CN100336629C CNB200410073080XA CN200410073080A CN100336629C CN 100336629 C CN100336629 C CN 100336629C CN B200410073080X A CNB200410073080X A CN B200410073080XA CN 200410073080 A CN200410073080 A CN 200410073080A CN 100336629 C CN100336629 C CN 100336629C
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- pulling force
- clamp
- protecgulum
- cylinder
- bonnet
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Abstract
The present invention relates to a clamp head capable of measuring pulling force. In order to overcome the insufficiency of the clamp head only having clamping action and being not capable of measuring the working pulling force existing in the prior art, the clamp head capable of measuring pulling force causes a pulling force sensor 3 to be arranged on a back cover 1 of the clamp head, and both end surfaces of the pulling force sensor 3 are respectively fixed on a front cover 4 and the back cover 1. The front cover 4 and the back cover 1 are both circular cavity bodies and are mutually embedded, and the front cover 4 and the back cover 1 can correspondingly slide. A spacing sheath barrel 5 is arranged at the outer end of the front cover 4, a piston 8 is positioned in an inner cavity of the front cover 4, and a piston rod is connected with a pushing force plate 13. Under the drive of hydraulic oil, a plurality of clamp blocks 7 positioned in the spacing sheath barrel 5 can move along the direction of a shaft, the clamp blocks 7 are constrained by a conic cavity, the clamp blocks 7 get close to a central line in moving process and clamp a working piece arranged on a shaft line in the spacing sheath barrel 5, the pulling force of the working piece is passed to the spacing sheath barrel 5 through the clamp blocks 7, and the pulling force is passed to the pulling force sensor 3 through the front cover 4. The clamp head capable of measuring pulling force can clamp the working piece and measure the working pulling force, and the clamp head capable of measuring pulling force has the characteristics of simple structure, convenience and practicality.
Description
(1) technical field
The present invention relates to field of machining, specifically a kind of chuck of measuring pulling force.
(2) technical background
At present, the chuck of the holding workpiece of equipment such as be applied to stretch bending in the actual production, go for a stroll only plays clamping action, the function that does not have the surveying work pulling force, need predict working pulling force, two kinds of measures of general now employing: the one, setting pressure sensor in the supporting structure-hydraulic cylinder of chuck, draw working pulling force by the oil pressure inverse, the working pulling force error that the method is calculated is bigger; The 2nd, externally make improvements on the structure, the installation pulling force sensor, this method is owing to be subjected to the restriction of lathe general construction, and difficulty realizes, and is more even realization is also changed machine tool structure, reduces the lathe indicators of overall performance.
(3) summary of the invention
For the chuck that overcomes the holding workpiece that exists in the prior art only plays clamping action, deficiency that can not the surveying work pulling force, the present invention proposes a kind of chuck of measuring pulling force, can be under the situation that keeps the lathe original structure, realization has improved the certainty of measurement of working pulling force to the direct measurement of the working pulling force of clamping workpiece.
The present invention includes bonnet, pulling force sensor, protecgulum, spacing collar, piston, thrust plate and clamp.Its technical characterictic is: on the bonnet external peripheral surface pulling force sensor is installed; Protecgulum and bonnet are all circular cavity, and the cylinder of protecgulum is nested in the oil cylinder groove that is made of bonnet, can slide relatively between the two; Spacing collar is installed in the protecgulum outer end, and is connected by bolt between protecgulum, pulling force sensor, the bonnet; Piston is positioned at the protecgulum oil cylinder, and an end is connected with thrust plate; Thrust plate is embedded in the inside groove that is arranged on the clamp, when seesawing, drives clamp and moves together.The present invention is under the promotion of hydraulic oil, and the polylith clamp that is positioned at spacing collar can move vertically, and is subjected to the constraint of cone-shaped cavity.
Operation principle of the present invention is: under the promotion of hydraulic oil, the polylith clamp that is positioned at spacing collar moves vertically, and be subjected to the constraint of cone-shaped cavity, in the process of motion, draw close to center line, to be installed in workpiece clamping on the axis in the spacing collar, and make the pulling force of workpiece pass to spacing collar, thereby power is passed to pulling force sensor through protecgulum by clamp, make it produce miniature deformation, the output signal of telecommunication.
Effect of the present invention is convenient and practical, has both had the effect of holding workpiece, has the function of surveying work pulling force again, and is simple in structure, is easy to processing and manufacturing.
(4) description of drawings
The present invention is described further below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of chuck.
Fig. 2 is that the A of chuck is to schematic diagram.
Fig. 3 is the front-cover structure schematic diagram.
Fig. 4 is the rear cover structure schematic diagram.
Fig. 5 is the pulling force sensor structural representation.
Fig. 6 is the piston structure schematic diagram.
1-bonnet 2-rubber tube 3-pulling force sensor 4-protecgulum 5-spacing collar
6-screw 7-clamp 8-piston 9-sealing ring 10-bolt
11-bolt 12-end cap 13-thrust plate 14-oil cylinder 15-counter sink
16-oilhole 17-oilhole 18-oil cylinder groove 19-oilhole 20-screwed hole
21-plug wire port 22-piston rod
(5) specific embodiment
The present invention mainly comprises bonnet 1, pulling force sensor 3, protecgulum 4, spacing collar 5, piston 8, thrust plate 13 and clamp 7.
Bonnet 1 is the middle cylinder that does not connect, and its outer surface is stepped, and wherein the inwall of an end cylinder is a screwed hole 20, is used for chuck and connects with extraneous; The inwall of other end cylinder is smooth barrel, as oil cylinder groove 18, in order to oil cylinder 14 to be installed.On the ladder step of bonnet 1 outer surface, oilhole 19 is arranged, and open slot is arranged, in order to pulling force sensor 3 to be installed along the circumferential surface of this step.
Protecgulum 4 is the cylinder of end sealing, and the external diameter of this cylinder is identical with the internal diameter of oil cylinder groove 18, and installs with oil cylinder groove 18 matched in clearance.Cylindrical at this cylinder opening end has the edge, and the external diameter at edge is identical with the maximum outside diameter of the outer surface ladder of bonnet 1, and oilhole 16 and bolt connecting hole are arranged on this edge.The inner chamber of this cylinder is used as the oil cylinder 14 of piston, and its internal diameter is identical with the external diameter of piston head; Oil cylinder 14 port inner radius have a counter sink 15, and these counter sink 15 inwalls are screw thread, are used to install end cap 12.Tube bottom also has oilhole 17.
Being evenly equipped with 5 tapped through holes on the ladder step of bonnet 1 outer surface and on the outer circumferential edge of protecgulum 4 edge, be used for being connected with spacing collar 5 with pulling force sensor 3.
Pulling force sensor 3 is annular, and the internal diameter of the circular hole at center is big 2～3 millimeters than the external diameter of the cannelure on the bonnet 1, and end face is evenly equipped with 5 tapped through holes, is used for being connected with protecgulum 4 with bonnet 1.One plug wire port 21 is arranged on the circumferential surface, be used for external cable and carry the pulling force signal.Pulling force sensor 3 internal circuits adopt the prior art design.
Piston 8 is structure as a whole with piston rod 22, on the circumferential surface of piston 8 U-lag is arranged, and is used to install sealing ring 9, and the termination of piston rod 22 is stepped, is provided with screw thread, is used to connect thrust plate 13.
End cap 12 is circular, and there is circular hole the centre, and the internal diameter of this circular hole is identical with the external diameter of piston rod, and with the piston rod matched in clearance; The external peripheral surface of this end cap 12 is omnidistance screw thread, so that install with protecgulum counter sink 15, is used for sealed cylinder 14.
The inner chamber of spacing collar 5 is smooth taper, four clamps 7 when accent moves, are limited by conical internal cavity vertically, draw close to the axle center of spacing collar 5, to be installed in workpiece clamping on the axis in the spacing collar 5, and make the pulling force of workpiece pass to spacing collar by clamp.
Thrust plate 13 and clamp 7 are positioned at spacing collar 5, and its structure all adopts prior art with assembling.Clamp 7 peripheries are taper, are engaged in the inner chamber of spacing collar 5, limit its circumferential free degree by screw 6, and motion is among a small circle axially arranged.Clamp 7 axis one side is useful on the inside groove of installed thrust plate 13.
During installation:
The cylinder of protecgulum 4 is installed in the oil cylinder groove 18, between the two for being slidingly matched; Pulling force sensor 3 is installed in the open slot that is positioned on the bonnet 1 outer surface ladder step circumferential surface; Spacing collar 5 is installed in protecgulum 4 outer ends.Connect by bolt 10,11 between spacing collar 5, protecgulum 4, pulling force sensor 3, the bonnet 1.Sealing ring 9 is installed in the U-lag of piston 8, to prevent hydraulic fluid leak; Oil cylinder 14, one ends that piston 8 is positioned at protecgulum 4 are connected with thrust plate 13; Thrust plate 13 is embedded in the inside groove that is arranged on the clamp 7, when seesawing, drives clamp 7 and moves together.Oil cylinder 14 ports of protecgulum 4 are sealed by end cap 12, by oilhole 16 and oilhole 17 turnover hydraulic oil, promote piston 8 and seesaw.Be connected by rubber tube 2 between the oilhole 17 of protecgulum 4 and the oilhole 19 of bonnet 1.
Claims (4)
1. the chuck that can measure pulling force comprises bonnet (1), protecgulum (4), spacing collar (5), piston (8), thrust plate (13) and clamp (7), it is characterized in that:
A. the pulling force sensor on the excircle of bonnet (1) (3);
B. protecgulum (4) and bonnet (1) are all circular cavity, and the cylinder of protecgulum (4) is nested in oil cylinder groove (18) lining that is made of bonnet (1), can slide relatively between the two; Spacing collar (5) is installed in protecgulum (4) outer end, and is connected by bolt (10,11) between protecgulum (4), pulling force sensor (3), the bonnet (1); Piston (8) is positioned at protecgulum (4) oil cylinder (14), and an end is connected with thrust plate (13); Thrust plate (13) is embedded in the inside groove that is arranged on the clamp (7), and the clamp (7) that drive is installed in the spacing collar (5) moves vertically;
C. under the promotion of hydraulic oil, the polylith clamp (7) that is positioned at spacing collar (5) moves vertically, and be subjected to the constraint of cone-shaped cavity, in the process of motion, draw close to center line, to be installed in workpiece clamping on the interior axis of spacing collar (5), and make the pulling force of workpiece pass to spacing collar (5), thereby power is passed to pulling force sensor (3) through protecgulum (4) by clamp (7), make it produce miniature deformation, the output signal of telecommunication.
2. can measure the chuck of pulling force according to claim 1, it is characterized in that bonnet (1) is the middle cylinder that does not connect, its outer surface is stepped, and wherein the inwall of an end cylinder is screwed hole (20), and other end cylinder is oil cylinder groove (18); Oilhole (19) is arranged on the ladder step of bonnet (1) outer surface, and cannelure is arranged along this step circumferential surface.
3. can measure the chuck of pulling force according to claim 1, it is characterized in that protecgulum (4) is the cylinder of end sealing, the inner chamber of cylinder is used as the oil cylinder of piston (14).
4. can measure the chuck of pulling force according to claim 1, it is characterized in that the edge being arranged, and oilhole (16) is arranged on this edge at the cylinder opening end cylindrical of protecgulum (4); Oil cylinder (14) port inner radius has a screw thread counter sink (15); Tube bottom also has oilhole (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410073080XA CN100336629C (en) | 2004-09-15 | 2004-09-15 | Clamp head capable of measuring tension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410073080XA CN100336629C (en) | 2004-09-15 | 2004-09-15 | Clamp head capable of measuring tension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1618573A CN1618573A (en) | 2005-05-25 |
| CN100336629C true CN100336629C (en) | 2007-09-12 |
Family
ID=34765251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410073080XA Expired - Fee Related CN100336629C (en) | 2004-09-15 | 2004-09-15 | Clamp head capable of measuring tension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100336629C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210849B (en) * | 2006-12-28 | 2011-05-25 | 上海康德莱企业发展集团股份有限公司 | 0.4mmQuick-speed jigs for needle tube under 0.4mm and method of use thereof |
| CN102172903B (en) * | 2011-02-22 | 2013-01-30 | 东北大学 | Hydraulic chuck device applying tension and pressure |
| CN103101007B (en) * | 2013-02-18 | 2015-05-27 | 成都九鼎科技(集团)有限公司 | Damper indicator diagram test fixture |
| CN103341769B (en) * | 2013-06-23 | 2017-07-07 | 芜湖杰诺瑞汽车电器***有限公司 | The milling clamper for automatically controlling |
| CN112547823B (en) * | 2020-11-24 | 2022-06-24 | 张家港拓盛机械科技有限公司 | Drawing traction mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000141241A (en) * | 1998-11-06 | 2000-05-23 | Toshiba Tungaloy Co Ltd | Fastening machine of bolt |
| WO2001023855A2 (en) * | 1999-09-27 | 2001-04-05 | Siemens Aktiengesellschaft | Pressure sensor |
| DE10029953A1 (en) * | 2000-06-26 | 2002-01-17 | Mapal Fab Praezision | Tool holder for e.g. reamers or thread-cutting tools, includes sensor measuring radial play |
| CN2506387Y (en) * | 2001-09-24 | 2002-08-21 | 上海柴油机股份有限公司 | Interference fit pressure sensing measurer for machinery part |
| CN2630818Y (en) * | 2003-06-18 | 2004-08-04 | 万向钱潮股份有限公司 | Work-indicator rapid clamp |
-
2004
- 2004-09-15 CN CNB200410073080XA patent/CN100336629C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000141241A (en) * | 1998-11-06 | 2000-05-23 | Toshiba Tungaloy Co Ltd | Fastening machine of bolt |
| WO2001023855A2 (en) * | 1999-09-27 | 2001-04-05 | Siemens Aktiengesellschaft | Pressure sensor |
| DE10029953A1 (en) * | 2000-06-26 | 2002-01-17 | Mapal Fab Praezision | Tool holder for e.g. reamers or thread-cutting tools, includes sensor measuring radial play |
| CN2506387Y (en) * | 2001-09-24 | 2002-08-21 | 上海柴油机股份有限公司 | Interference fit pressure sensing measurer for machinery part |
| CN2630818Y (en) * | 2003-06-18 | 2004-08-04 | 万向钱潮股份有限公司 | Work-indicator rapid clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1618573A (en) | 2005-05-25 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070912 Termination date: 20100915 |