CN204108693U - A kind of machine tool hydraulic chuck - Google Patents

A kind of machine tool hydraulic chuck Download PDF

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Publication number
CN204108693U
CN204108693U CN201420602464.5U CN201420602464U CN204108693U CN 204108693 U CN204108693 U CN 204108693U CN 201420602464 U CN201420602464 U CN 201420602464U CN 204108693 U CN204108693 U CN 204108693U
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CN
China
Prior art keywords
inner core
overcoat
cylinder body
thin walled
oilhole
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.)
Expired - Lifetime
Application number
CN201420602464.5U
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Chinese (zh)
Inventor
冯晓飞
蒋春展
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUHU HONGJIN MACHINE TOOL CO Ltd
Original Assignee
WUHU HONGJIN MACHINE TOOL CO Ltd
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 WUHU HONGJIN MACHINE TOOL CO Ltd filed Critical WUHU HONGJIN MACHINE TOOL CO Ltd
Priority to CN201420602464.5U priority Critical patent/CN204108693U/en
Application granted granted Critical
Publication of CN204108693U publication Critical patent/CN204108693U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a kind of machine tool hydraulic chuck, for clamping circular bar workpiece, this chuck comprises overcoat (1), in the endoporus of overcoat (1), arrange with its coaxial line and the inner core (2) coordinated, the front end of inner core (2) is thin walled cylinder body (5) structure, and thin walled cylinder body (5) inner face is closed; The endoporus of thin walled cylinder body (5) and the cylindrical of workpiece are formed and are slidably matched; The outer surface of thin walled cylinder body (5) and the bore area of overcoat (1) form tight fit; The outer surface of thin walled cylinder body (5) is provided with oil groove (9), and oil groove (9) is communicated with pressurized oil lines.Adopt technique scheme, compared with prior art, make it have that structure is simple, easily manufactured, clamping is reliable, operating efficiency is high, workpiece little to the surface clamping damage of workpiece can not produce the advantages such as distortion because of clamping force, and can centering precision be improved, ensure the machining accuracy of round bar shape workpiece well.

Description

A kind of machine tool hydraulic chuck
Technical field
The utility model belongs to the technical field of manufacturing technology equipment, and relate to the structure of fixture, more particularly, the utility model relates to a kind of machine tool hydraulic chuck.
Background technology
In the prior art, circular bar generally adopts chuck to carry out clamping, and the operating efficiency of its clamping is lower, easily make workpiece produce pinching deformation and surface clamping damage; The clamping force transferring structure of fixture is complicated, cause processing, manufacture more difficult; Centering precision is poor, is difficult to the machining accuracy ensureing workpiece.
Utility model content
The utility model provides a kind of machine tool hydraulic chuck, its objective is the clamping efficiency improving circular bar workpiece.
To achieve these goals, the technical scheme that the utility model is taked is:
Machine tool hydraulic chuck of the present utility model, for clamping circular bar workpiece, this chuck comprises overcoat, in the endoporus of described overcoat, arrange with its coaxial line and the inner core coordinated, the front end of described inner core is thin walled cylinder body structure, and described thin walled cylinder body inner face is closed; The endoporus of described thin walled cylinder body and the cylindrical of workpiece are formed and are slidably matched; The outer surface of described thin walled cylinder body and the bore area of described overcoat form tight fit; The outer surface of described thin walled cylinder body is provided with oil groove, and described oil groove is communicated with pressurized oil lines.
Described pressurized oil lines is: on described outer cover, arrange overcoat oilhole; Described inner core arranges inner core oilhole; The front end of described overcoat oilhole is communicated with described oil groove.
The profile of described overcoat is the cone that point diameter is less than rear end; Described inner core is the stairstepping that point diameter is less than rear end diameter; Described inner core oilhole is communicated with in step-like shoulder end with overcoat oilhole.
The rear port of described inner core oilhole is positioned at the axis of inner core, between the rear port and the rear end of inner core of described inner core oilhole, arranges the cylindrical hole be communicated with inner core coaxial line and with described inner core oilhole, in this cylindrical hole, is provided with plunger.
In described cylindrical hole, be positioned at plunger front, sealing ring is set.
Described outer putting arranges deflation structure, and this deflation structure comprises air bleeder screw plug, and the spiro pluging hole be mated, and the outer surface of described oil groove with described overcoat is communicated with by this spiro pluging hole.
The utility model adopts technique scheme, compared with prior art, make it have that structure is simple, easily manufactured, clamping is reliable, operating efficiency is high, workpiece little to the surface clamping damage of workpiece can not produce the advantages such as distortion because of clamping force, and can centering precision be improved, ensure the machining accuracy of round bar shape workpiece well.
Accompanying drawing explanation
Mark in content shown in accompanying drawing and figure is as follows:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is for looking schematic diagram in the right side of structure shown in Fig. 1.
Wherein:
1, overcoat, 2, inner core, 3, plunger, 4, sealing ring, 5, thin walled cylinder body, 6, overcoat oilhole, 7, inner core oilhole, 8, air bleeder screw plug, 9, oil groove.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, detailed description of the invention of the present utility model is described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present utility model, technical scheme.
Structure of the present utility model expressed as shown in Figure 1, Figure 2, be a kind of machine tool hydraulic chuck, be common to clamping circular bar workpiece, this chuck comprises overcoat 1.
In order to solve prior art Problems existing and overcome its defect, realize the goal of the invention of the clamping efficiency of circular bar workpiece, the technical scheme that the utility model is taked is:
As shown in Figure 1 and Figure 2, machine tool hydraulic chuck of the present utility model, in the endoporus of described overcoat 1, arrange with its coaxial line and the inner core 2 coordinated, the front end of described inner core 2 is thin walled cylinder body 5 structure, and described thin walled cylinder body 5 inner face is closed; The endoporus of described thin walled cylinder body 5 and the cylindrical of workpiece are formed and are slidably matched; The outer surface of described thin walled cylinder body 5 and the bore area of described overcoat 1 form tight fit; The outer surface of described thin walled cylinder body 5 is provided with oil groove 9, and described oil groove 9 is communicated with pressurized oil lines.
Hydraulic clamp head of the present utility model utilizes hydraulic oil to carry out transmission of pressure as medium, thus make chuck clip workpiece.Hydraulic oil is full of in chuck, plunger is under the effect of external force, push ahead, hydraulic oil transmission of pressure, act on the thin walled cylinder body of chuck front end, it is made to produce the elastic deformation of trace, thus clip workpiece, because deflection is very little, and very even, so workpiece can not be made to produce distortion, and can not disfiguring workpiece surface.
The utility model, owing to have employed technique scheme, makes it have that structure is simple, convenient processing and manufacture, operating efficiency advantages of higher.And centering precision is also greatly improved.
Described pressurized oil lines is:
Described overcoat 1 arranges overcoat oilhole 6; Described inner core 2 arranges inner core oilhole 7; The front end of described overcoat oilhole 6 is communicated with described oil groove 9.
The profile of described overcoat 1 is the cone that point diameter is less than rear end; Described inner core 2 is less than the stairstepping of rear end diameter for point diameter; Described inner core oilhole 6 is communicated with in step-like shoulder end with overcoat oilhole 7.
The rear port of described inner core oilhole 6 is positioned at the axis of inner core 2, between the rear port and the rear end of inner core of described inner core oilhole 6, arranges the cylindrical hole be communicated with inner core 2 coaxial line and with described inner core oilhole 6, is provided with plunger 3 in this cylindrical hole.
The effect of plunger 3 is that the clamping force realizing additional mechanical motion mechanism generation can pass to Hydraulic Clamping Mechanism.
In described cylindrical hole, be positioned at plunger 3 front, sealing ring 4 is set.
Described sealing ring 4 ensure that the sealing property of plunger 3 and plunger hole, can relative motion and can not produce leakage.
Described overcoat 1 arranges deflation structure, and this deflation structure comprises air bleeder screw plug 8, and the spiro pluging hole be mated, and the outer surface of described oil groove 9 with described overcoat 1 is communicated with by this spiro pluging hole.
When exitting, needing air bleeder screw plug 8 to rotate to direction upward, then unscrewing air bleeder screw plug 8, by the gas discharging in pressurized oil lines, and can suitably supplementary pressure is oily.
By reference to the accompanying drawings the utility model is exemplarily described above; obvious the utility model specific implementation is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technical scheme is carried out; or design of the present utility model and technical scheme directly applied to other occasion, all within protection domain of the present utility model without to improve.

Claims (6)

1. a machine tool hydraulic chuck, for clamping circular bar workpiece, this chuck comprises overcoat (1), it is characterized in that: in the endoporus of described overcoat (1), arrange with its coaxial line and the inner core (2) coordinated, the front end of described inner core (2) is thin walled cylinder body (5) structure, and described thin walled cylinder body (5) inner face is closed; The described endoporus of thin walled cylinder body (5) and the cylindrical of workpiece are formed and are slidably matched; The outer surface of described thin walled cylinder body (5) and the bore area of described overcoat (1) form tight fit; The outer surface of described thin walled cylinder body (5) is provided with oil groove (9), and described oil groove (9) is communicated with pressurized oil lines.
2. according to machine tool hydraulic chuck according to claim 1, it is characterized in that: described pressurized oil lines is: on described overcoat (1), overcoat oilhole (6) is set; Described inner core (2) arranges inner core oilhole (7); The front end of described overcoat oilhole (6) is communicated with described oil groove (9).
3. according to machine tool hydraulic chuck according to claim 2, it is characterized in that: the profile of described overcoat (1) is the cone that point diameter is less than rear end; Described inner core (2) is less than the stairstepping of rear end diameter for point diameter; Described inner core oilhole (6) is communicated with in step-like shoulder end with overcoat oilhole (7).
4. according to machine tool hydraulic chuck according to claim 3, it is characterized in that: the rear port of described inner core oilhole (6) is positioned at the axis of inner core (2), between the rear port and the rear end of inner core of described inner core oilhole (6), the cylindrical hole be communicated with inner core (2) coaxial line and with described inner core oilhole (6) is set, in this cylindrical hole, is provided with plunger (3).
5. according to machine tool hydraulic chuck according to claim 4, it is characterized in that: in described cylindrical hole, be positioned at plunger (3) front, sealing ring (4) is set.
6. according to the machine tool hydraulic chuck according to any one of claim 1 to 5, it is characterized in that: described overcoat (1) arranges deflation structure, this deflation structure comprises air bleeder screw plug (8), and the spiro pluging hole be mated, described oil groove (9) is communicated with the outer surface of described overcoat (1) by this spiro pluging hole.
CN201420602464.5U 2014-10-17 2014-10-17 A kind of machine tool hydraulic chuck Expired - Lifetime CN204108693U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420602464.5U CN204108693U (en) 2014-10-17 2014-10-17 A kind of machine tool hydraulic chuck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420602464.5U CN204108693U (en) 2014-10-17 2014-10-17 A kind of machine tool hydraulic chuck

Publications (1)

Publication Number Publication Date
CN204108693U true CN204108693U (en) 2015-01-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420602464.5U Expired - Lifetime CN204108693U (en) 2014-10-17 2014-10-17 A kind of machine tool hydraulic chuck

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104308582A (en) * 2014-10-17 2015-01-28 芜湖洪金机床有限公司 Hydraulic chuck for machine tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104308582A (en) * 2014-10-17 2015-01-28 芜湖洪金机床有限公司 Hydraulic chuck for machine tool

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