CN204935201U - A kind of external diameter fixture with shrinking escape groove - Google Patents

A kind of external diameter fixture with shrinking escape groove Download PDF

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Publication number
CN204935201U
CN204935201U CN201520688161.4U CN201520688161U CN204935201U CN 204935201 U CN204935201 U CN 204935201U CN 201520688161 U CN201520688161 U CN 201520688161U CN 204935201 U CN204935201 U CN 204935201U
Authority
CN
China
Prior art keywords
escape groove
shrinking
clamp
external diameter
liquid shrinkable
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 - Fee Related
Application number
CN201520688161.4U
Other languages
Chinese (zh)
Inventor
李金龙
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.)
Jiangsu Yijia Precision Instrument Manufacturing Co Ltd
Original Assignee
Jiangsu Yijia Precision Instrument Manufacturing 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 Jiangsu Yijia Precision Instrument Manufacturing Co Ltd filed Critical Jiangsu Yijia Precision Instrument Manufacturing Co Ltd
Priority to CN201520688161.4U priority Critical patent/CN204935201U/en
Application granted granted Critical
Publication of CN204935201U publication Critical patent/CN204935201U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of external diameter fixture with shrinking escape groove, be made up of clamp base (1) and clamp pull rod (2), described clamp base (1) is by contraction front (1-1), guiding face (1-2), installed surface (1-3) forms, described clamp pull rod (2) is by main shaft connecting thread (2-1), connecting rod (2-2), guide step (2-3), shrink escape groove (2-4), liquid shrinkable (2-5), centre bore (2-6), notch (2-7) forms, it is characterized in that: it is inner that described clamp pull rod (2) inserts clamp base (1), by guiding guide table rank (2-3) and guide surface (1-2), fixture is positioned.The utility model, owing to shrinking the effect of escape groove and liquid shrinkable, to part clamping face uniform stressed, thus ensures can not produce play when processing parts, ensures product concentricity and precision.

Description

A kind of external diameter fixture with shrinking escape groove
Technical field
The utility model relates to field of machining, particularly relates to a kind of external diameter fixture for the processing of precision cylindrical body part.
Background technology
In order to process the surface of the technical requirement that conforms with the regulations, the lathe of clamping workpiece must will realize the positioning and clamping of workpiece before processing, when workpiece is installed, generally first locate rear clamping, and when workpiece is installed on scroll chuck, positioning and clamping carries out simultaneously, workpiece is directly installed on platen or universal fixturing (as three grab chuck, chuck, flat-nose pliers, the standard accessories such as magnechuck) on, sometimes namely centering does not clamp separately, but increasing non-universal product needed for some parts processing and specialized designs manufactures fixture, thus reach rapid and reliably ensure the correct relative position of workpiece to lathe and cutter, and can clamp rapidly, utilize special fixture processing work, processing precision of products can be ensured, can enhance productivity again, but there is no versatility.The design of special fixture, manufacture and maintenance need certain investment, so only in batch production or in producing in enormous quantities, just can obtain reasonable benefit.
Utility model content
The purpose of this utility model is to provide a kind of external diameter fixture with shrinking escape groove, and this fixture is applicable to internal diameter and the external diameter processing of precision cylindrical body part.
The technical solution of the utility model is achieved in the following ways: a kind of external diameter fixture with shrinking escape groove, be made up of clamp base, clamp pull rod, described clamp base is made up of contraction front, guiding face, installed surface, described clamp pull rod is made up of main shaft connecting thread, connecting rod, guiding step, contraction escape groove, liquid shrinkable, it is characterized in that: it is inner that described clamp pull rod inserts clamp base, by guiding guide table rank and guide surface, fixture is positioned.
Described contraction front is a female cone dignity, and liquid shrinkable is an outer cone body structure, female cone dignity angle 2-4 degree less of cylindrical cone angle.
Described liquid shrinkable is connected with guiding step, and coupling part is provided with contraction escape groove.
Described liquid shrinkable portion centers is provided with centre bore, centrally hole to centrum outer the uniform notch being provided with six deep equalities with one heart, liquid shrinkable is divided into six parts.
Self there is deformation in described contraction escape groove, simultaneously due to the squeezing action of female cone dignity to liquid shrinkable, six parts of liquid shrinkable diminish to central reduction simultaneously, reach the object of clamping work pieces in clamp pull rod left motion process.
The utility model, owing to shrinking the effect of escape groove and liquid shrinkable, to part clamping face uniform stressed, thus ensures can not produce play when processing parts, ensures product concentricity and precision.
Accompanying drawing explanation
Fig. 1 is installation diagram of the present utility model.
Fig. 2 is base schematic diagram of the present utility model.
Fig. 3 be clamp pull rod cut open schematic diagram.
Fig. 4 is clamp pull rod side view.
In figure: 1 clamp base, 1-1 contraction front, 1-2 guiding face, 1-3 installed surface, 2 clamp pull rods, 2-1 main shaft connecting thread, 2-2 connecting rod, 2-3 guide step, 2-4 shrinks escape groove, 2-5 liquid shrinkable, 2-6 centre bore, 2-7 notch.
Detailed description of the invention
By Fig. 1, Fig. 2, Fig. 3, Fig. 4 knows, a kind of external diameter fixture with shrinking escape groove, by clamp base 1, contraction front 1-1, guiding face 1-2, installed surface 1-3, clamp pull rod 2, main shaft connecting thread 2-1, connecting rod 2-2, guide step 2-3, shrink escape groove 2-4, liquid shrinkable 2-5, centre bore 2-6, notch 2-7 forms, it is inner that described clamp pull rod 2 inserts clamp base 1, by guiding guide table rank 2-3 and guide surface 1-2, fixture is positioned, described contraction front 1-1 is a female cone dignity, liquid shrinkable 2-5 is an outer cone body structure, female cone dignity angle 2-4 degree less of cylindrical cone angle, described liquid shrinkable 2-5 is connected with guiding step 2-3, coupling part is provided with shrinks escape groove 2-4, described liquid shrinkable 2-5 portion centers is provided with centre bore 2-6, centrally hole 2-6 to centrum outer the uniform notch 2-7 being provided with six deep equalities with one heart, liquid shrinkable 2-5 is divided into six parts, when making fixture, after first fixture being installed, use the clamping of little pressure (0.2-0.3MAP) sky, then fine finishining centre bore 2-6, be worked into and workpiece outside dimension+0.005/+0.01, can ensure that workpiece can well be fixed and process in indeformable situation like this, during processing parts, first clamp base 1 is fixed on lathe, again main shaft connecting thread 2-1 is connected with main shaft, again part is placed between contraction front 1-1 and liquid shrinkable 2-5, start lathe, shrink escape groove 2-4 and self deformation occurs in clamp pull rod 2 left motion process, simultaneously due to the squeezing action of female cone dignity to liquid shrinkable 2-5, six parts of liquid shrinkable 2-5 diminish to central reduction simultaneously, reach the object of Clamp blocks external diameter.

Claims (5)

1. the external diameter fixture with shrinking escape groove, be made up of clamp base (1) and clamp pull rod (2), described clamp base (1) is by contraction front (1-1), guiding face (1-2), installed surface (1-3) forms, described clamp pull rod (2) is by main shaft connecting thread (2-1), connecting rod (2-2), guide step (2-3), shrink escape groove (2-4), liquid shrinkable (2-5), centre bore (2-6), notch (2-7) forms, it is characterized in that: it is inner that described clamp pull rod (2) inserts clamp base (1), by guiding guide table rank (2-3) and guide surface (1-2), fixture is positioned.
2. a kind of external diameter fixture with shrinking escape groove according to claim 1, it is characterized in that: described contraction front (1-1) is a female cone dignity, liquid shrinkable (2-5) is an outer cone body structure, female cone dignity included angle A 2-4 degree less of cylindrical cone included angle B.
3. a kind of external diameter fixture with shrinking escape groove according to claim 1, is characterized in that: described liquid shrinkable (2-5) is connected with guiding step (2-3), and coupling part is provided with shrinks escape groove (2-4).
4. a kind of external diameter fixture with shrinking escape groove according to claim 1, it is characterized in that: described liquid shrinkable (2-5) portion centers is provided with centre bore (2-6), centrally hole (2-6) to centrum outer the uniform notch (2-7) being provided with six deep equalities with one heart, liquid shrinkable (2-5) is divided into six parts.
5. a kind of external diameter fixture with shrinking escape groove according to claim 1, it is characterized in that: described contraction escape groove (2-4) self deformation occurs in clamp pull rod (2) left motion process, simultaneously due to the squeezing action of female cone dignity to liquid shrinkable (2-5), six parts of liquid shrinkable (2-5) diminish to central reduction simultaneously.
CN201520688161.4U 2015-09-08 2015-09-08 A kind of external diameter fixture with shrinking escape groove Expired - Fee Related CN204935201U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520688161.4U CN204935201U (en) 2015-09-08 2015-09-08 A kind of external diameter fixture with shrinking escape groove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520688161.4U CN204935201U (en) 2015-09-08 2015-09-08 A kind of external diameter fixture with shrinking escape groove

Publications (1)

Publication Number Publication Date
CN204935201U true CN204935201U (en) 2016-01-06

Family

ID=55002657

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520688161.4U Expired - Fee Related CN204935201U (en) 2015-09-08 2015-09-08 A kind of external diameter fixture with shrinking escape groove

Country Status (1)

Country Link
CN (1) CN204935201U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105033718A (en) * 2015-09-08 2015-11-11 江苏艺佳精密仪器制造有限公司 External diameter clamp with contracting and receding groove

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105033718A (en) * 2015-09-08 2015-11-11 江苏艺佳精密仪器制造有限公司 External diameter clamp with contracting and receding groove

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
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: 20160106

Termination date: 20180908