CN203738464U - Special jig for lathing eccentric part - Google Patents

Special jig for lathing eccentric part Download PDF

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Publication number
CN203738464U
CN203738464U CN201420085700.0U CN201420085700U CN203738464U CN 203738464 U CN203738464 U CN 203738464U CN 201420085700 U CN201420085700 U CN 201420085700U CN 203738464 U CN203738464 U CN 203738464U
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CN
China
Prior art keywords
eccentric
screw
workpiece
eccentric body
clamp body
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
CN201420085700.0U
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Chinese (zh)
Inventor
刘春利
刘胜永
李佩洁
范庆林
赵红梅
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Hebei Normal University
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Hebei Normal University
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 Hebei Normal University filed Critical Hebei Normal University
Priority to CN201420085700.0U priority Critical patent/CN203738464U/en
Application granted granted Critical
Publication of CN203738464U publication Critical patent/CN203738464U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a special jig for lathing an eccentric part. An eccentric body is arranged in a jig body, a screwing screw and a V-shaped pad are arranged above the structure of the eccentric body, an auxiliary positioning sleeve and a guide pin are arranged below the structure of the eccentric body, a transposition baffle and a stop pin are arranged in the axial outside direction of the jig body, and a locking screw, a spring washer and a baffle positioning pin are arranged below the axial position of the jig body. An adjusting beam hanger is arranged inside the jig body, a clamping cushion block and the adjusting beam hanger are adjusted through the screwing screw, and then the eccentric body provided with an eccentric workpiece to be machined is completely fixed into the clamp body. In the working process, the workpiece to be machined is placed in the eccentric body, the eccentric body is clamped in the clamp body, after the workpiece is clamped by the screwing screw through the V-shaped pad, outer circles in various sizes can be machined, the screw is then released, the workpiece can be made to rotate by 180 degrees along with the eccentric body by screwing the locking screw, the eccentric body is fastened by screwing the screwing screw after the eccentric body is positioned through the positioning pin, the inner hole can be conveniently machined, and then accuracy and the eccentric distance of the outer circle and the inner hole of the workpiece can be guaranteed.

Description

A kind of special fixture of lathe processing eccentric part
Technical field
The utility model relates to the fixture that a kind of lathe processing work is used, particularly a kind of special fixture for lathe processing eccentric part.
Background technology
The processing of eccentric part is the processing problems often running in lathe turning.Eccentric element is the parallel and workpiece that do not overlap of the cylindrical of part and the axis of cylindrical or cylindrical and endoporus, and the distance between two axis is called eccentric throw.The processing method of eccentric element has multiple, but process principle is basic identical, mainly aspect clamping, takes different measures, need to process the axis centering of eccentric part to coinciding with lathe spindle rotation.The processing method of general eccentric work piece mainly contains four kinds, they respectively: utilize three-claw interlocking chuck shimming method, four-jaw chuck method, the top offset method in front and back two and utilize eccentric card jiggering eccentric work piece method.For guaranteeing the machining accuracy of eccentric element, add the depth of parallelism and the eccentric throw precision that must control well man-hour between axis, and usually can waste man-hour and operation inconvenience while utilizing four kinds of above conventional methods processing.For this reason, design a kind of special fixture that applies to lathe processing eccentric element, for improving Workpiece Machining Accuracy and efficiency, there is positive effect.
Summary of the invention
The purpose of this utility model is to provide a kind of special fixture that is applicable to lathe processing eccentric part, to improve Workpiece Machining Accuracy and efficiency.
The technical scheme that the utility model solves its technical problem employing is as follows: a kind of special fixture of lathe processing eccentric part, its structure comprises the clamp body for fixing eccentric work piece, in clamp body, be provided with the eccentric body for adjusting eccentric work piece eccentric throw, eccentric body superstructure is provided with and screws screw and V-type pad, below is provided with auxiliary positioning cover and guide finger, screwing screw and can make auxiliary positioning cover ajust workpiece along guide finger on tightened-up structure, can make workpiece adjust needed eccentric throw and workpiece is completely fixed in eccentric body by V-type pad.In the axial lateral direction of clamp body, be provided with transposition baffle plate, the backing pin of the degree of accuracy of controlling eccentric body.Below the axial direction of clamp body, be provided with lock-screw, spring washer, the baffle plate alignment pin of the free degree of controlling eccentric body.Be provided with adjusting beam hanger in clamp body inside, regulate clamping cushion block and regulate beam hanger by screwing screw, the eccentric body that eccentric work piece to be processed is housed is completely fixed in clamp body.
The utility model, when work, workpiece to be processed is placed in eccentric body, eccentric body again clamping in clamp body, at this moment the center superposition of the center of workpiece and machine tool chief axis (clamp body), with screw screw by V-type pad clamping work pieces after, can the each size of processing excircles, after completion of processing, unclamp screw, turning lock-screw can be by workpiece with after eccentric body Rotate 180 °, with tightening lock-screw behind pin location, eccentric body is fastening.Now the Kong to be processed center of workpiece overlaps with machine tool chief axis (clamp body) pivot, and its eccentric throw is just in time the size e of hole and cylindrical, can process in the case endoporus, ensures precision and the eccentric throw of cylindrical and endoporus.
The beneficial effects of the utility model are: when rotating eccentricity body, the axis of outer circular Curve to be processed is not concentric with machine tool chief axis axis, can processing excircles, ensure each precision of cylindrical.After rotating eccentricity, hole workpiece axis to be processed and machine tool chief axis dead in line, can process the hole that eccentric throw is e.Finally realize fast the processing of cylindrical and eccentric e endoporus, and ensure the precision of cylindrical and endoporus.
Brief description of the drawings
Fig. 1 is cutaway view of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the processing work front view (cutaway view) of the utility model embodiment.
Fig. 4 is the side view of Fig. 3.
The implication of number in the figure representative is as follows:
1, screw screw 2, clamp body 3, screw screw 4, clamp cushion block 5, eccentric body 6, V-type pad 7, workpiece 8, auxiliary positioning cover 9, guide finger 10, regulate beam hanger 11, transposition baffle plate 12, backing pin 13, lock-screw 14, spring washer 15, baffle plate alignment pin.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
As the utility model that Fig. 1 provides, its structure comprises the clamp body 2 for fixing eccentric work piece, is provided with the eccentric body 5 of the eccentric throw for adjusting eccentric work piece in clamp body 2.Eccentric body 5 superstructures are provided with and screw screw 3 and V-type pad 6, below is provided with auxiliary positioning cover 8 and guide finger 9, screwing screw 3 and can make auxiliary positioning cover 8 ajust workpiece 7 along guide finger 9 on tightened-up structure, can be made workpiece 7 adjust needed eccentric distance e and workpiece 7 is completely fixed in eccentric body 5 by V-type pad.In the axial lateral direction of clamp body 2, be provided with transposition baffle plate 11, backing pin 12, below the axial direction of clamp body 2, be provided with lock-screw 13, spring washer 14, baffle plate alignment pin 15.Transposition baffle plate 11, backing pin 12 are controlled the degree of accuracy of eccentric body 5, and lock-screw 13, spring washer 14, baffle plate alignment pin 15 are controlled the free degree of eccentric body 5.Be provided with in clamp body 2 inside and regulate beam hanger 10, regulate clamping cushion block 4 and regulate beam hanger 10 by screwing screw 1, the eccentric body 5 that eccentric work piece to be processed is housed is completely fixed in clamp body 2.
This device is arranged on the scroll chuck of CA6140 lathe, after centering, clamps.While installing and using, first workpiece 7(is shown in to Fig. 3, Fig. 4) radially put into along the indentation, there of positioning sleeve 8, fixing by guide finger 9 and V-type pad 6, adjusting screws screw 3 is completely fixed in eccentric body 5 workpiece 7.Clamp cushion block 4 and regulate beam hanger 10 by adjusting again, screwing screw 1 eccentric body 5 is fixed in clamp body 2, at this moment the central axis of workpiece 7 cylindrical φ 28 and clamp body 2(machine tool chief axis) center superposition, get final product processing excircles φ 28 equidimensions.After processing excircles, unclamp screw 1, can be by workpiece with 180 ° of eccentric body revolutions, now location is to see Fig. 2 by transposition baffle plate 11, backing pin 12, lock-screw 13, spring washer 14 and alignment pin 15() jointly complete.Tighten and screw screw 1 by fastening eccentric body 5, now workpiece 7 endoporus φ 16 central axis and clamp body 2(machine tool chief axis) centre of gyration overlaps, its eccentric throw is e, in the case, can be to its endoporus φ 16 processing such as part such as grade, after completion of processing, unclamp and screw screw 1 and 3, workpiece 7 and auxiliary positioning cover 8 are together taken out, then repeat above-mentioned steps and can process again new part.According to the needs of batch production, fixture can be changed at any time, and very convenient, if when processing parts changes, as long as change the positioning sleeve 8 in Fig. 1, can meet the processing request of new product, thereby expand the scope of application of fixture, has improved economic benefit.

Claims (1)

1. the special fixture of a lathe processing eccentric part, comprise the clamp body (2) for fixing eccentric work piece, it is characterized in that, in clamp body (2), be provided with the eccentric body (5) for adjusting eccentric work piece eccentric throw, eccentric body superstructure is provided with and screws screw (3) and V-type pad (6), below is provided with auxiliary positioning cover (8) and guide finger (9), the screw (3) that screws on tightened-up structure makes auxiliary positioning cover (8) ajust workpiece (7) along guide finger (9), make workpiece (7) adjust needed eccentric throw and workpiece (7) is fixed in eccentric body (5) by V-type pad (6), in the axial lateral direction of clamp body (2), be provided with transposition baffle plate (11) and the backing pin (12) of the degree of accuracy of controlling eccentric body (5), be provided with the lock-screw (13) of the free degree of controlling eccentric body (5) in the axial below of clamp body (2), spring washer (14) and baffle plate alignment pin (15), be provided with in clamp body (2) inside and regulate beam hanger (10), regulate clamping cushion block (4) and regulate beam hanger (10) by screwing screw (1), the eccentric body (5) that makes to be equipped with eccentric work piece to be processed is fixed in clamp body (2).
CN201420085700.0U 2014-02-27 2014-02-27 Special jig for lathing eccentric part Expired - Fee Related CN203738464U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420085700.0U CN203738464U (en) 2014-02-27 2014-02-27 Special jig for lathing eccentric part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420085700.0U CN203738464U (en) 2014-02-27 2014-02-27 Special jig for lathing eccentric part

Publications (1)

Publication Number Publication Date
CN203738464U true CN203738464U (en) 2014-07-30

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ID=51338327

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420085700.0U Expired - Fee Related CN203738464U (en) 2014-02-27 2014-02-27 Special jig for lathing eccentric part

Country Status (1)

Country Link
CN (1) CN203738464U (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105345656A (en) * 2015-12-06 2016-02-24 江麓机电集团有限公司 Inner circle machining positioning and clamping device
CN107225413A (en) * 2017-08-01 2017-10-03 杭州广旭数控设备有限公司 A kind of positioning clamping device of numerically controlled lathe turning eccentric element
CN107717592A (en) * 2017-09-28 2018-02-23 中国航发动力股份有限公司 A kind of device and method for eliminating machine tool and spindle eccentricity
CN108620966A (en) * 2018-07-03 2018-10-09 常州凯瑞莱精密工具有限公司 Eccentric shaft grinding attachment
CN110153739A (en) * 2019-06-27 2019-08-23 中国航空工业标准件制造有限责任公司 The fixture of turning eccentric element
CN110340706A (en) * 2019-07-18 2019-10-18 西安航天精密机电研究所 A kind of eccentric shaft turning grip device and processing method
CN111922740A (en) * 2020-07-06 2020-11-13 河北师范大学 Lathe fixture of double-eccentric thin-wall sleeve
CN111941126A (en) * 2020-07-15 2020-11-17 张超 Eccentric clamping mechanism for lathe tool
CN113218550A (en) * 2021-04-28 2021-08-06 杭州仁源汽配有限公司 Dynamic torque detection integrated system of light hub unit and detection method thereof

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105345656A (en) * 2015-12-06 2016-02-24 江麓机电集团有限公司 Inner circle machining positioning and clamping device
CN107225413A (en) * 2017-08-01 2017-10-03 杭州广旭数控设备有限公司 A kind of positioning clamping device of numerically controlled lathe turning eccentric element
CN107225413B (en) * 2017-08-01 2023-09-01 中航西飞汉中航空零组件制造有限公司 Positioning and clamping device for turning eccentric part of numerical control lathe
CN107717592B (en) * 2017-09-28 2020-03-17 中国航发动力股份有限公司 Device and method for eliminating eccentricity between machine tool cutter and main shaft
CN107717592A (en) * 2017-09-28 2018-02-23 中国航发动力股份有限公司 A kind of device and method for eliminating machine tool and spindle eccentricity
CN108620966A (en) * 2018-07-03 2018-10-09 常州凯瑞莱精密工具有限公司 Eccentric shaft grinding attachment
CN110153739A (en) * 2019-06-27 2019-08-23 中国航空工业标准件制造有限责任公司 The fixture of turning eccentric element
CN110340706A (en) * 2019-07-18 2019-10-18 西安航天精密机电研究所 A kind of eccentric shaft turning grip device and processing method
CN110340706B (en) * 2019-07-18 2023-11-17 西安航天精密机电研究所 Eccentric shaft turning clamp device and machining method
CN111922740A (en) * 2020-07-06 2020-11-13 河北师范大学 Lathe fixture of double-eccentric thin-wall sleeve
CN111941126A (en) * 2020-07-15 2020-11-17 张超 Eccentric clamping mechanism for lathe tool
CN111941126B (en) * 2020-07-15 2022-01-14 苏州新和机械有限公司 Eccentric clamping mechanism for lathe tool
CN113218550A (en) * 2021-04-28 2021-08-06 杭州仁源汽配有限公司 Dynamic torque detection integrated system of light hub unit and detection method thereof
CN113218550B (en) * 2021-04-28 2022-09-02 杭州仁源汽配有限公司 Dynamic torque detection integrated system of light hub unit and detection method thereof

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140730

Termination date: 20150227

EXPY Termination of patent right or utility model