CN109848495A - Elongated shaft Working piece positioning device applied to electrical-chemistry method - Google Patents

Elongated shaft Working piece positioning device applied to electrical-chemistry method Download PDF

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Publication number
CN109848495A
CN109848495A CN201910187808.8A CN201910187808A CN109848495A CN 109848495 A CN109848495 A CN 109848495A CN 201910187808 A CN201910187808 A CN 201910187808A CN 109848495 A CN109848495 A CN 109848495A
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China
Prior art keywords
elongated shaft
fixed
mandrel
work
electrical
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Pending
Application number
CN201910187808.8A
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Chinese (zh)
Inventor
庞桂兵
卜繁岭
赵秀君
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Dalian Polytechnic University
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Dalian Polytechnic University
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Priority to CN201910187808.8A priority Critical patent/CN109848495A/en
Publication of CN109848495A publication Critical patent/CN109848495A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a kind of elongated shaft Working piece positioning device applied to electrical-chemistry method, including being fixed on first mandrel of elongated shaft-like work one end, and it is fixed on the second mandrel of the elongated shaft-like work other end;First mandrel is fixed on the first top top, and main shaft is fixed in the described first top tail portion;Second mandrel is fixed on the top top of second be axially movable;The present apparatus realizes the clamping of elongated shaft-like work by the screw rod on chuck, it adjusts tailstock and applies workpiece axial tension, elongated shaft-like work is tensed, elongated shaft workpiece axial direction bending deformation is not will cause, when elongated shaft-like work is by external broach, when generating thermal deformation, positioning system can compensate for deforming, and improve the machining accuracy of elongated shaft-like work.

Description

Elongated shaft Working piece positioning device applied to electrical-chemistry method
Technical field
When the present invention relates to carrying out electrical-chemistry method to elongated shaft-like work, the centering positioning of elongated shaft-like work installation, workpiece It clamps, the device that power supply introduces more particularly to a kind of workpiece aligning for avoiding elongated shaft workpiece bows from deforming position conductive tooling.
Background technique
Elongated shaft refers to that the length-to-diameter of workpiece is greater than the shaft-like workpiece of 25 (i.e. L/D > 25), and elongated shaft is using Conventional machining methods are easy to produce deformation when processing.Therefore, avoiding the workpiece in process from deforming is to realize elongated shaft The key of high quality processing.Workpiece is deformed mainly from two aspects, first is that the deformation generated during workpiece positioning and clamping, Another is the deformation generated in cutter and workpiece contact process.Currently, aligning positioning clamps elongated shaft in process Mainly realized by machine tool chief axis chuck+tailstock centre (center lathe) either Double Tops point+heart carrier (cylindrical grinder) The positioning and clamping of elongated shaft.But the processing for elongated shaft, there are some problems: lathe for the method that aligning positioning clamps Scroll chuck realize positioning clamp when be easy to produce position error, tailstock centre generally passes through operator when holding out against elongated shaft It rotates handwheel to realize, operator is firmly difficult to ensure constant in this process, it is understood that there may be firmly excessive that workpiece bows is caused to become Shape;The two of grinding machine are top when holding out against, and can guarantee to be accurately positioned, but this kind of mode equally be easy to cause the bending deformation of workpiece. Avoiding workpiece from generating the main method of position error during positioning is to increase centre frame, is generated by centre frame adjustment Position error;The method being deformed in workpiece contact process is avoided mainly to increase follow-rest on lathe, and with cutter It is cut on workpiece, one reaction force is applied by follow-rest in cutter opposite side and is applied to holding out against for workpiece to balance cutter Power, so that workpiece be avoided to be deformed by cutter pressure.But in Electrochemical- mechanical- finishing, electrochemistry work should be applied With, apply mechanism again, if in order to avoid workpiece deformation and in a limited space in be further added by follow-rest, will lead to knot Phenomena such as structure is complicated, and electrolyte inevitably generates corrosion to follow-rest.In addition, also being needed in electrochemical machining process Power supply is introduced into workpiece, heart carrier is difficult to ensure that power supply reliably introduces.Therefore, it invents a kind of suitable for electrical-chemistry method, energy Avoiding the aligning of elongated shaft distortion from positioning clamping tool and mechanical knifing tool is that electrochemical machinery Application of composite adds in elongated shaft The key of work.
Summary of the invention
The technical problem to be solved by the present invention is to propose a kind of aligning positioning clamping device for changing existing elongated shaft, avoid The deformation generated in workpiece installation process improves the machining accuracy of elongated shaft.
In order to achieve the above object, the present invention takes following technical scheme: a kind of elongated shaft applied to electrical-chemistry method Working piece positioning device, comprising:
Elongated shaft-like work is fixed in first mandrel, one end of first mandrel, and the other end connects with the first top top Touching;Described first top top ring extends to first mandrel and passes through around the first chuck, first chuck is fixed with First screw rod is connected and fixed with first mandrel;
The elongated shaft-like work, the other end and the second top top are fixed in second mandrel, one end of second mandrel Portion's contact;Described second top top ring extends to second mandrel simultaneously around the second chuck, second chuck is fixed with It is connected and fixed by the second screw rod and second mandrel;
Main shaft is fixed in described first top tail portion;One end of tailstock is fixed in described second top tail portion, described The other end of tailstock is connected and fixed with lead screw, and the tailstock is placed on the guide rail of lathe.
Under preferred embodiment, gear set is connected to the lead screw and the lead screw can be pushed to move axially, and handwheel is connected to The gear set can simultaneously push the gear set to rotate.
Compared with the prior art, the advantages of the present invention are as follows in the processing of, tradition machinery, the positioning of elongated shaft-like work completely according to It cooperates by the chuck of lathe and top and centre frame and realizes the positioning of elongated shaft-like work;Elongated shaft-like work clamp by Axial compressive force be easy to cause processing elongated shaft the bending deformation of elongated shaft-like work, it is necessary to cooperate follow-rest secondary process.But It is that electrical-chemistry method, the corrosivity of centre frame, the large volume of follow-rest and electrical-chemistry method electrolyte are determined Heart frame and follow-rest are not suitable for electrical-chemistry method, therefore in the present invention, and design is by the two top elongated shaft-like works of realization Positioning, realize the clamping of elongated shaft-like work by the screw rod on chuck, adjustment tailstock is applied to elongated shaft workpiece axial tension, Elongated shaft-like work is tensed, not will cause elongated shaft workpiece axial direction bending deformation, when elongated shaft-like work is by external broach, when generation heat When deformation, positioning system can compensate for deforming, and improve the machining accuracy of elongated shaft-like work.
Detailed description of the invention
Fig. 1 illustrates elongated shaft Electrochemical- mechanical- finishing schematic diagram;
Fig. 2 illustrates the structure chart of tooling of the present invention;
Fig. 3 to Fig. 6 illustrates four kinds of forms that tooling of the present invention clamps.
Specific embodiment
A specific embodiment of the invention is described with reference to the accompanying drawing.
Such as the schematic diagram that Fig. 1 is elongated shaft-like work Electrochemical- mechanical- finishing, elongated shaft-like work 1 is individually fixed in first On mandrel 21 and the second mandrel 22, the first mandrel 21 and the second mandrel 22 are realized by first top 31 and second top 32 respectively Positioning and clamping, cathode 11 and grinding tool 12 are respectively at the two sides of elongated shaft-like work 1, and cathode 11 does not occur with elongated shaft-like work 1 Contact, grinding tool 12 are in contact with elongated shaft-like work 1, the surface of elongated shaft-like work 1 are ground, so as to give elongated shaft-like work 1 Shape bring deformation.
It is illustrated in figure 2 apparatus of the present invention schematic diagram, is not only folder first of all for allowing top and mandrel all to connect fastening Tightly, following measure is taken:
Around being fixed on first top 31, the other end passes through multiple first screw rods 51 for 41 one end of the first chuck of hollow columnar It is fixed on the first mandrel 21.Similar, around being fixed on second top 32, the other end is logical for 42 one end of the second chuck of hollow columnar It crosses multiple second screw rods 52 and is fixed on the second mandrel 22.
The situation that Fig. 3 to Fig. 6 is respectively the first screw rod 51 or the second screw rod 52 is 1,2,3,4.
For the elongated shaft-like work 1 of stretching, following measure is taken:
As shown in Fig. 2, main shaft 61 is fixed in first top 31 tail portion, main shaft 61 is fixed but can rotate;Second One end of tailstock 62 is fixed in top 32 tail portion, and the other end and the lead screw 7 of tailstock 62 are connected and fixed, and tailstock 62 is placed in lathe Guide rail on.Gear set 9 is connected to lead screw 7 and lead screw 7 can be pushed to move axially, and handwheel 10 is connected to gear set 9 and can push away Moving gear group 9 rotates.Also screwing in the tail portion of screw rod 7 has fixed nut 8.
Moving left and right for the second mandrel 22 can be realized in rotation handwheel 10, if moving right, elongated shaft-like work 1 can be drawn It stretches;Tailstock 62 is connected with the guide rail of lathe, moves together during stretching, and nut 8 is fixed on lathe, immovable;It is main Axis 61 finally passes to electricity on elongated shaft-like work 1 by the first top 31 and first chuck 41.Elongated shaft-like work 1 is turned by main shaft It is dynamic, cathode 11 can be started with and carry out electrical-chemistry method or carry out knifing and polishing using grinding tool 12.
Chuck clamp system in the present invention can change other mechanisms that can be clamped into, and gear set commutation can use worm gear Other mechanisms such as worm screw replace realizing commutation, other mechanisms such as available hydraulic device, servo motor replace real feed screw nut's form Realize the movement of front and back.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.

Claims (3)

1. a kind of elongated shaft Working piece positioning device applied to electrical-chemistry method characterized by comprising
Elongated shaft-like work (1) is fixed in one end of first mandrel (21), first mandrel (21), and the other end is top with first (31) top contact;The top ring of first top (31) is around being fixed with the first chuck (41), first chuck (41) It extends to first mandrel (21) and is connected and fixed by the first screw rod (51) with first mandrel (21);
The elongated shaft-like work (1), the other end and the second top are fixed in second mandrel (22), one end of second mandrel (22) The top contact of sharp (32);The top ring of second top (32) is around being fixed with the second chuck (42), second chuck (42) it extends to second mandrel (22) and is connected and fixed by the second screw rod (52) with second mandrel (22);
Main shaft (61) are fixed in the tail portion of first top (31);Tailstock (62) are fixed in the tail portion of second top (32) One end, the other end and the lead screw (7) of the tailstock (62) be connected and fixed, and the tailstock (62) is placed on the guide rail of lathe.
2. being applied to the elongated shaft Working piece positioning device of electrical-chemistry method according to claim 1, which is characterized in that gear set (9) it is connected to the lead screw (7) and the lead screw (7) can be pushed to move axially.
3. being applied to the elongated shaft Working piece positioning device of electrical-chemistry method according to claim 2, which is characterized in that handwheel (10) it is connected to the gear set (9) and the gear set (9) can be pushed to rotate.
CN201910187808.8A 2019-03-13 2019-03-13 Elongated shaft Working piece positioning device applied to electrical-chemistry method Pending CN109848495A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910187808.8A CN109848495A (en) 2019-03-13 2019-03-13 Elongated shaft Working piece positioning device applied to electrical-chemistry method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910187808.8A CN109848495A (en) 2019-03-13 2019-03-13 Elongated shaft Working piece positioning device applied to electrical-chemistry method

Publications (1)

Publication Number Publication Date
CN109848495A true CN109848495A (en) 2019-06-07

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111168168A (en) * 2020-02-20 2020-05-19 东北石油大学 Device and method for machining blind hole in perforating gun
CN113385835A (en) * 2021-07-08 2021-09-14 广东原点智能技术有限公司 Long tube-shape work piece graduation system of processing
CN113385836A (en) * 2021-07-08 2021-09-14 广东原点智能技术有限公司 Indexing and positioning jig for long cylindrical workpiece

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111168168A (en) * 2020-02-20 2020-05-19 东北石油大学 Device and method for machining blind hole in perforating gun
CN111168168B (en) * 2020-02-20 2021-06-11 东北石油大学 Device and method for machining blind hole in perforating gun
CN113385835A (en) * 2021-07-08 2021-09-14 广东原点智能技术有限公司 Long tube-shape work piece graduation system of processing
CN113385836A (en) * 2021-07-08 2021-09-14 广东原点智能技术有限公司 Indexing and positioning jig for long cylindrical workpiece

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