CN207508765U - A kind of hydraulically operated fixture - Google Patents

A kind of hydraulically operated fixture Download PDF

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Publication number
CN207508765U
CN207508765U CN201721359142.2U CN201721359142U CN207508765U CN 207508765 U CN207508765 U CN 207508765U CN 201721359142 U CN201721359142 U CN 201721359142U CN 207508765 U CN207508765 U CN 207508765U
Authority
CN
China
Prior art keywords
collet
hydraulic cylinder
hydraulically operated
operated fixture
sleeve
Prior art date
Application number
CN201721359142.2U
Other languages
Chinese (zh)
Inventor
陈爱珠
Original Assignee
陈爱珠
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 陈爱珠 filed Critical 陈爱珠
Priority to CN201721359142.2U priority Critical patent/CN207508765U/en
Application granted granted Critical
Publication of CN207508765U publication Critical patent/CN207508765U/en

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Abstract

The utility model is related to a kind of hydraulically operated fixtures, include first hydraulic cylinder, second hydraulic cylinder, flange, screw rod, nut, collet sleeve, collet and spring, flange is connected on the right end of first hydraulic cylinder and the left end of second hydraulic cylinder, flange is equipped with screw rod, screw rod both ends are screwed with matched nut, and pass through two end nut of screw rod and collet sleeve is pressed between first hydraulic cylinder and second hydraulic cylinder, collet is set in collet sleeve, collet includes upper grip, lower collet, left collet and right collet, upper grip upper end and the lower end of lower collet match respectively with the upper endoporus of collet sleeve and lower endoporus, the left end of the right end of left collet and right collet amplifies contact of incline plane with upper grip and lower collet by power.The utility model is simple in structure, small, and energy self-centering largely improves the working efficiency of fixture, while have preferable stability and safety.

Description

A kind of hydraulically operated fixture
Technical field
The utility model is related to a kind of hydraulically operated fixtures.
Background technology
Hydraulically operated fixture is exactly machine components to be replaced to realize automatic positioning, bearing and the folder clamped to workpiece with Hydraulic Elements Tool.Especially there is wide application, such as in oil drilling in oil drilling, automobile processing and other fields, hydraulically operated fixture and drilling machine The motor coordinated movement of various economic factors, realize and the actions such as docking between drilling rod and disengaging, also need to that drilling tool can be clamped when necessary, prevent from boring Tool sliding.At present, it is general to clamp, unclamp and realized by hydraulic pressure in the more hydraulically operated fixture of utilization, led to by both sides hydraulic cylinder Enter high pressure oil so that fixture follows piston to be collapsed to center, clamp, and can then fixture be unclamped by changing its logical oily direction, so And the fixture of this structure is easily influenced by oil pressure variation, when occurring powering off when abnormal conditions, fixture reliability is not high, There are huge security risks.
Utility model content
In view of the above-mentioned problems, technical solution provided by the utility model is a kind of hydraulically operated fixture.
Specific technical solution is realized as follows:A kind of hydraulically operated fixture includes first hydraulic cylinder, second hydraulic cylinder, flange, spiral shell Flange is connected on bar, nut, collet sleeve, collet and spring, the right end of the first hydraulic cylinder and the left end of second hydraulic cylinder, The flange is equipped with screw rod, and the screw rod both ends are screwed with matched nut, and pass through two end nut of screw rod by collet casing pressure Tightly between first hydraulic cylinder and second hydraulic cylinder, the collet is set in collet sleeve, and the collet includes upper grip, lower folder The lower end of head, left collet and right collet, the upper grip upper end and lower collet respectively with the upper endoporus of collet sleeve and lower endoporus phase Cooperation, and arc groove, the right end of the left collet and a left side for right collet are provided at the lower end of upper grip and the upper end of lower collet End and upper grip and lower collet amplify contact of incline plane by power, and the right end of left collet left end and right collet is by screw thread respectively with the The piston rod of one hydraulic cylinder is connected with the piston rod of second hydraulic cylinder, the left collet and first hydraulic cylinder, right collet and second Spring is equipped between hydraulic cylinder.
Preferably, the first hydraulic cylinder upper end is equipped with the first connector, and its left end is equipped with the second connector, wherein first connects Head can tap into oil pipe, and the second connector can pick out oil pipe.
Preferably, the second hydraulic cylinder upper end is equipped with third connector, and its right end is equipped with the 4th connector, and wherein third connects Head can tap into oil pipe, and the 4th connector can pick out oil pipe.
Preferably, the collet sleeve outer surface is provided with rectangular channel.
Preferably, it is provided with hole on the rectangular channel.
Preferably, stifled pin is equipped in the upper and lower endoporus of the collet sleeve.
Preferably, the power amplification inclination angle of inclined plane is 8~12 °.
Preferably, the spring can be butterfly spring.
The hydraulically operated fixture of the utility model, it is simple in structure, small, it is clamped by spring, by action of hydraulic force power It unclamps, and energy self-centering, largely improves the working efficiency of fixture, while when power-off occurs when abnormal conditions, The hydraulically operated fixture in clamped condition, has preferable stability and safety always.
Description of the drawings
Fig. 1 is the whole schematic cross-sectional view of the utility model embodiment.
Fig. 2 is the integral outer structure diagram of the utility model embodiment.
Label in attached drawing for:1- first hydraulic cylinders, 2- second hydraulic cylinders, 3- flanges, 4- screw rods, 5- nuts, 6- collets Set, 7- collets, 8- springs, the piston rod of 10- first hydraulic cylinders, the first connectors of 11-, the second connectors of 12-, 20- second hydraulic cylinders Piston rod, 21- third connectors, the 4th connectors of 22-, 61- rectangular channels, 62- blocks up pin, 71- upper grips, collet under 72-, and 73- is left Collet, the right collets of 74-, 79- power amplification inclined-plane, 611- holes.
Specific embodiment
To the utility model, preferred technical solution is described further with reference to the accompanying drawings and examples.
Embodiment, as shown in Fig. 1~2:A kind of hydraulically operated fixture, include first hydraulic cylinder 1, second hydraulic cylinder 2, flange 3, It is solid on screw rod 4, nut 5, collet sleeve 6, collet 7 and spring 8, the right end of the first hydraulic cylinder 1 and the left end of second hydraulic cylinder 2 Flange 3 is connected to, the flange 3 is equipped with screw rod 4, and 4 both ends of screw rod are screwed with matched nut 5, and pass through 4 both ends of screw rod Collet sleeve 6 is pressed between first hydraulic cylinder 1 and second hydraulic cylinder 2 by nut 5, and the collet 7 is set in collet sleeve 6, described Collet 7 includes upper grip 71, lower collet 72, left collet 73 and right collet 74,71 upper end of upper grip and lower collet 72 Lower end matches respectively with the upper endoporus of collet sleeve 6 and lower endoporus, and equal at the lower end of upper grip 71 and the upper end of lower collet 72 Arc groove, the right end of the left collet 73 and the left end of right collet 74 is provided with upper grip 71 and lower collet 72 by power to amplify tiltedly Face 79 contacts, the right end of left 73 left end of collet and right collet 74 by screw thread respectively with the piston rod of first hydraulic cylinder 10 and second The piston rod 20 of hydraulic cylinder connects, and is equipped between the left collet 73 and first hydraulic cylinder 1, right collet 74 and second hydraulic cylinder 2 Spring 8.
Preferably, 1 upper end of first hydraulic cylinder is equipped with the first connector 11, and its left end is equipped with the second connector 12, wherein First connector 11 can tap into oil pipe, and the second connector 12 can pick out oil pipe.
Preferably, 2 upper end of second hydraulic cylinder is equipped with third connector 21, and its right end is equipped with the 4th connector 22, wherein Third connector can tap into oil pipe, and the 4th connector can pick out oil pipe.
Preferably, 6 outer surface of collet sleeve is provided with rectangular channel 61.
Preferably, it is provided with hole 611 on the rectangular channel 61.
Preferably, stifled pin 62 is equipped in the upper and lower endoporus of the collet sleeve 6.
Preferably, power amplification 79 inclination angle of inclined-plane is 8~12 °.
It is further preferred that power amplification 79 inclination angle of inclined-plane is 9 °.
Preferably, the spring 8 can be butterfly spring.
Specifically, when initial, under the action of 8 elastic force of spring, left collet 73 and right collet 74 are drawn close to centre, pass through power Amplify inclined-plane 79 and transmit pressure to upper grip 71 and lower collet 72 so that upper grip and lower collet are also drawn close, and pass through to centre The arc groove of the lower end of upper grip 71 and lower 72 upper end of collet is by Workpiece clamping;When needing to unclamp workpiece, in first hydraulic cylinder 1 The first connector 11 and second hydraulic cylinder 2 on third connector 21 simultaneously be passed through hydraulic oil, action of hydraulic force lower piston rod to Rodless cavity moves, and the collet being connect at this time with piston rod is also moved to rodless cavity direction therewith, left and right collet and upper and lower collet Contact of incline plane part reduce, upper and lower collet unclamps workpiece, can be to 8 pretightning force of spring by the nut 5 on adjusting screw rod 4 Size is adjusted, while the abrasion between the lower end of collet 71 and the arc groove and workpiece of lower 72 upper end of collet can be lacked Amount compensation.
Embodiment described above only expresses the preferred embodiment of the utility model, and description is more specific and detailed, But it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for the common of this field For technical staff, without departing from the inventive concept of the premise, several deformations can also be made, improves and substitutes, these are all Belong to the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (8)

1. a kind of hydraulically operated fixture, it is characterised in that:Include first hydraulic cylinder, second hydraulic cylinder, flange, screw rod, nut, collet Set, collet and spring are connected with flange on the right end of the first hydraulic cylinder and the left end of second hydraulic cylinder, are set on the flange There is screw rod, the screw rod both ends are screwed with matched nut, and pass through two end nut of screw rod and collet sleeve is pressed on the first hydraulic pressure Between cylinder and second hydraulic cylinder, the collet be set on collet sleeve in, the collet include upper grip, lower collet, left collet and The lower end of right collet, the upper grip upper end and lower collet matches, and upper folder with the upper endoporus of collet sleeve and lower endoporus respectively Be provided with arc groove at the lower end of head and the upper end of lower collet, the right end of the left collet and the left end of right collet and upper grip and Lower collet amplifies contact of incline plane by power, the right end of left collet left end and right collet by screw thread respectively with the work of first hydraulic cylinder Stopper rod is connected with the piston rod of second hydraulic cylinder, is set between the left collet and first hydraulic cylinder, right collet and second hydraulic cylinder There is spring.
2. hydraulically operated fixture according to claim 1, it is characterised in that:The first hydraulic cylinder upper end is equipped with the first connector, And its left end is equipped with the second connector.
3. hydraulically operated fixture according to claim 1, it is characterised in that:The second hydraulic cylinder upper end is equipped with third connector, And its right end is equipped with the 4th connector.
4. hydraulically operated fixture according to claim 1, it is characterised in that:The collet sleeve outer surface is provided with rectangular channel.
5. hydraulically operated fixture according to claim 4, it is characterised in that:Hole is provided on the rectangular channel.
6. hydraulically operated fixture according to claim 1, it is characterised in that:Stifled pin is equipped in the upper and lower endoporus of the collet sleeve.
7. hydraulically operated fixture according to claim 1, it is characterised in that:The power amplification inclination angle of inclined plane is 8~12 °.
8. hydraulically operated fixture according to claim 1, it is characterised in that:The spring is butterfly spring.
CN201721359142.2U 2017-10-20 2017-10-20 A kind of hydraulically operated fixture CN207508765U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721359142.2U CN207508765U (en) 2017-10-20 2017-10-20 A kind of hydraulically operated fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721359142.2U CN207508765U (en) 2017-10-20 2017-10-20 A kind of hydraulically operated fixture

Publications (1)

Publication Number Publication Date
CN207508765U true CN207508765U (en) 2018-06-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721359142.2U CN207508765U (en) 2017-10-20 2017-10-20 A kind of hydraulically operated fixture

Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108972324A (en) * 2018-08-16 2018-12-11 大连龙飞科技有限公司 Feed device
CN109227287A (en) * 2018-09-11 2019-01-18 刘晏君 A kind of microspecimen polished machine
CN110565642A (en) * 2019-08-29 2019-12-13 中国一冶集团有限公司 Pile pulling hydraulic chuck

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108972324A (en) * 2018-08-16 2018-12-11 大连龙飞科技有限公司 Feed device
CN109227287A (en) * 2018-09-11 2019-01-18 刘晏君 A kind of microspecimen polished machine
CN110565642A (en) * 2019-08-29 2019-12-13 中国一冶集团有限公司 Pile pulling hydraulic chuck

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180619

Termination date: 20181020