CN101049675A - Eccentric shaft with adjustable eccentricity - Google Patents

Eccentric shaft with adjustable eccentricity Download PDF

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Publication number
CN101049675A
CN101049675A CN 200710022532 CN200710022532A CN101049675A CN 101049675 A CN101049675 A CN 101049675A CN 200710022532 CN200710022532 CN 200710022532 CN 200710022532 A CN200710022532 A CN 200710022532A CN 101049675 A CN101049675 A CN 101049675A
Authority
CN
China
Prior art keywords
eccentric
mandrel body
piece
adjusting
wedge shape
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.)
Granted
Application number
CN 200710022532
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Chinese (zh)
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CN100448607C (en
Inventor
潘明强
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.)
Changzhou Baoling Heavy and Industrial Machinery Co Ltd
Original Assignee
Changzhou Baoling Heavy and Industrial Machinery 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.)
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Publication date
Application filed by Changzhou Baoling Heavy and Industrial Machinery Co Ltd filed Critical Changzhou Baoling Heavy and Industrial Machinery Co Ltd
Priority to CNB2007100225325A priority Critical patent/CN100448607C/en
Publication of CN101049675A publication Critical patent/CN101049675A/en
Application granted granted Critical
Publication of CN100448607C publication Critical patent/CN100448607C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

An eccentric axle with adjustable eccentricity for machining the thin-wall sleeve barrel is composed of a core axle body and an eccentricity adjusting block with two central holes at it's both ends and matched with the head and tail centers of machine-tool. Said eccentricity can be adjusted by adjusting the distance between the central axis of said core axle body and the central hole of said eccentricity adjusting block.

Description

The eccentric shaft that eccentric throw is adjustable
Technical field
The present invention relates to the adjustable eccentric shaft of a kind of eccentric throw, belong to Machine Manufacturing Technology.
Background technology
Eccentric shaft involved in the present invention is the technological equipment spare of eccentric thin walled cylinder body class workpiece machining.
The said eccentric work piece of conventional processing is to implement processing by the eccentric shaft of changing different eccentric throws.That is to say the workpiece processing of not isometrical endoporus and different eccentric throws, the needs employing various outer diameter eccentric axle of different offsets is again processed.And with the offset adjustment of non-eccentricity axle processing eccentric bushing workpiece, conventional method is the eccentric adjustment of forming by by eccentric gear and/or eccentric cam etc., realizes the adjustment of the interior offset of certain limit.And the result of above-mentioned adjustment offset is difficult to satisfy the specification requirement of the eccentric precision of eccentric bushing workpiece often, and also the peak of very difficult centering off-centre and minimum point are on the line of same center line.
Summary of the invention
The objective of the invention is to, it is convenient to provide a kind of eccentric throw to adjust, and can satisfy the adjustable eccentric shaft of eccentric throw that the processing of different eccentric throw eccentric bushing workpiece can be general.To overcome the deficiency of prior art, solving the long-standing eccentric bushing process unit of machine industry offset can not directly adjustable technical problem.
The present invention realizes that the conception of its purpose technical scheme is, by be provided with can with machining tool for example the off-centre of the top centre bore that is complementary of head and the tail of lathe adjust piece, structure with the slip combination of mandrel body two ends, adjust the eccentric centre bore of adjusting piece via radial alignment, deviation distance with mandrel body center line, finish within the specific limits stepless adjustable of offset of the present invention easily, thereby realize purpose of the present invention.
Because above-mentioned conception, the present invention realizes that the technical scheme of its purpose is:
The eccentric shaft that a kind of eccentric throw is adjustable comprises the mandrel body, and its innovative point is:
Mandrel body one side has the shaft shoulder, and opposite side has external thread section; External thread section is set with packing ring and twists the locking nut that closes with external screw thread;
The two ends of mandrel body radially are respectively equipped with symmetrical many ribs through hole; Be provided with equipped mutually in many ribs through hole and latch segment slidably with it;
The two axial ends of mandrel body, be respectively equipped with symmetrical and with the wedge shape chute that many ribs through hole connects, be provided with equipped mutually with it and the slidably eccentric piece of adjusting in the wedge shape chute; The eccentric center of adjusting piece be respectively equipped with can with a lathe head and the tail thimble centre bore that closes mutually; Eccentric piece and the latch segment adjusted connect by bolting;
On the cylindrical with respect to wedge shape chute two ends of mandrel body, radially be respectively equipped with symmetrical off-centre and adjust screw, the eccentric screw of adjusting is twisted mutually and is closed with the eccentric bolt of adjusting, and eccentric adjustment bolt end can be adjusted piece with off-centre and connects.
Can understand that by above given technical scheme the off-centre that has centre bore by adjustment is adjusted piece, make it in intrinsic chute, make to set the different eccentric throws that produced that move of offset, reach the purpose of adjusting different offsets.Therefore, the present invention can be fit to the cylindricalo grinding manufacturing requirement of the sleeve class workpiece of different offsets within the specific limits by adjusting, and because described adjustment structure, its eccentric precision of adjusting is that to repeat to repair the precision of different off-centre unrivaled with general fixed eccentric shaft.
The inboard that the present invention is preferably in mandrel axon shoulder also is set with resilient rubbber cushion.Its purpose mainly is, can effectively cut down the Workpiece internal-external circle trace out-of-alignment morpheme error that produces owing to workpiece end face out of plumb endoporus.
The present invention also advocates the position between the shaft shoulder and external thread section at the mandrel body, along the circumferential direction also evenly is provided with the diameter of axle adjustment piece that several can be used to adjust its diameter of axle; The diameter of axle is adjusted piece by screw and mandrel body fixed connection.Can adjust the diameter of axle by match grinding and adjust piece, reaching the requirement that is fit to different eccentric adjusting sleeve class workpiece endoporus, thereby make the present invention can be fit to the processing of the sleeve class workpiece in all different offsets and different inner diameters hole within the specific limits.
The preferred many ribs through hole of the present invention is a rectangular through-hole.Certainly be not limited to this, for example the clipping edge round tube hole also is fine, but its mechanical morpheme stability will differ from relatively.
The present invention is the wedge shape chute be made up of 60 ° of dovetail grooves of trench bottom and rectangular channel the wedge shape chute of its wedge shape chute preferably.Because the off-centre that is complementary with wedge shape chute groove is adjusted the 60 ° of conical surfaces of piece and the planarea of width, be that 60 ° of conical surfaces and the planarea of adjusting the set centre bore of piece with off-centre is corresponding to, so the precision of the different offsets of adjustment is clock like precision.Other has bolt that eccentric adjustment piece and latch segment are tightened together, and its rigidity and intensity can satisfy eccentric straight-line and adjust frequently using repeatedly of eccentric throw mandrel.
The present invention also is marked with the sign that is used for recognizing eccentric peak and minimum point at mandrel axon shoulder cylindrical.
After technique scheme was implemented, the present invention made eccentric adjusting sleeve class workpiece, in its existing following technical problem in manufacture process in the past, had all obtained solution:
1, the accurate measurement of offset and the correct affirmation of peak and minimum point have been solved;
2, significantly reduced the comprehensive deformation of eccentric adjusting sleeve class workpiece;
3, can pass through thick, smart twice grinding of inside and outside circle easily, make eccentric adjusting sleeve class workpiece in the vibration of a series of processing, obtain natural recovery, eliminated eccentric adjusting sleeve class workpiece owing to the geometry that inherent stress produces can not satisfy the situation that drawing requires;
4, improved the working (machining) efficiency of eccentric adjusting sleeve class workpiece;
5, because trace is adjusted the sleeve class workpiece that eccentric axle can be fit to all different-diameter sizes within the specific limits, different offsets, therefore reduced the eccentric axle of a large amount of fixedly offsets, reduced the manufacturing cost of equipment;
6, simple in structure, it is more convenient quick to adjust the offset operation.
By the solution of the existing technical problem of the above prior art as seen, the present invention has outstanding substantive distinguishing features and obvious improvement.
Description of drawings
Fig. 1 is the front view (partly cuing open) of a kind of specific embodiment of the utility model;
Fig. 2 is the vertical view (right-hand member broken section) of Fig. 1; 11 is spring pad figure shown in the figure;
Fig. 3 is that the C of Fig. 1 is to view;
Fig. 4 is the A-A profile of Fig. 1.
The specific embodiment
Below contrast accompanying drawing, by the description of the specific embodiment, the invention will be further described.
The specific embodiment is shown in accompanying drawing 1 to 4.
A kind of adjustable eccentric shaft of eccentric throw that is mainly used in the processing of Thin-Walled Eccentric sleeve class workpiece comprises mandrel body 1, and mandrel body 1 one sides have shaft shoulder 1-1, and opposite side has external thread section 1-2; External thread section 1-2 is set with packing ring 9 and can twists the locking nut 10 that closes with external screw thread; The two ends of mandrel body 1 radially are respectively equipped with symmetrical many ribs through hole 1-3; Be provided with equipped mutually in many ribs through hole 1-3 and latch segment 5 slidably with it; The two axial ends of mandrel body 1, be respectively equipped with symmetrical and with the wedge shape chute 1-4 that many ribs through hole 1-3 connects, be provided with equipped mutually with it and the slidably eccentric piece 2 of adjusting in the wedge shape chute 1-4; The eccentric center of adjusting piece 2 be respectively equipped with can with a lathe head and the tail thimble centre bore 2-1 that closes mutually; Eccentric piece 2 and the latch segment 5 adjusted is by bolt 3 fixed connections; On the cylindrical with respect to wedge shape chute 1-4 two ends of mandrel body 1, radially be respectively equipped with symmetrical off-centre and adjust screw 1-5, the eccentric screw 1-5 that adjusts twists mutually and closes with the eccentric bolt 4 of adjusting, and eccentric adjustment bolt 4 ends can be adjusted piece 2 with off-centre and connect.Inboard at mandrel body 1 shaft shoulder 1-1 also is set with resilient rubbber cushion 6.The position between shaft shoulder 1-1 and external thread section 1-2 of mandrel body 1 along the circumferential direction also evenly is provided with the diameter of axle adjustment piece 8 that several can be used to adjust its diameter of axle; The diameter of axle is adjusted piece 8 by screw 7 and mandrel body 1 fixed connection.Many ribs through hole (1-3) is a rectangular through-hole.The wedge shape chute that wedge shape chute 1-4 is made up of 60 ° of dovetail groove 1-4-1 of trench bottom and rectangular channel (1-4-2).
The eccentric throw adjustable extent of the present invention of this specific embodiment is 0~10mm.
The concise and to the point description of offset adjustment of the present invention and use is:
During adjustment, the present invention can be placed on top that the two contour and centres of gyration overlap, make its bearing mark (peak or minimum point) rotate to the highest or horizontal level then, set up a dial gauge at last side bus or horizontal bus direction, measure original offset and record (original offset), the off-centre at loose slightly two ends is adjusted bolt 3, offset according to different needs, the careful off-centre of adjusting two ends is adjusted bolt 4, make the off-centre adjustment piece 2 at two ends in wedge shape chute 1-4, produce moving of setting offset, after the numerical value of percentage gauge outfit reaches own required offset, the off-centre of fastening opposite side is adjusted bolt 4, the fastening bolt 3 of fastening both ends of the surface again, and then once check final actual eccentricity, if error is arranged, get final product with regard to once adjusting again.
First sample of the present invention is good at the machine trial effect.Realized original intention of the present invention.

Claims (5)

1, the adjustable eccentric shaft of a kind of eccentric throw comprises mandrel body (1), it is characterized in that:
A, mandrel body (1) one side have the shaft shoulder (1-1), and opposite side has external thread section (1-2); External thread section (1-2) is set with packing ring (9) and twists the locking nut (10) that closes with external screw thread;
The two ends of b, mandrel body (1) radially are respectively equipped with symmetrical many ribs through hole (1-3); Be provided with equipped mutually in many ribs through hole (1-3) and latch segment (5) slidably with it;
The two axial ends of c, mandrel body (1), be respectively equipped with symmetrical and with the wedge shape chute (1-4) that many ribs through hole (1-3) connects, be provided with equipped mutually with it and the slidably eccentric piece (2) of adjusting in the wedge shape chute (1-4); The eccentric center of adjusting piece (2) be respectively equipped with can with a lathe head and the tail thimble centre bore that closes (2-1) mutually; Eccentric piece (2) and the latch segment (5) adjusted is by bolt (3) fixed connection;
On the cylindrical with respect to wedge shape chute (1-4) two ends of d, mandrel body (1), radially be respectively equipped with symmetrical off-centre and adjust screw (1-5), the eccentric screw (1-5) of adjusting is twisted mutually and is closed with the eccentric bolt (4) of adjusting, and eccentric adjustment bolt (4) end can be adjusted piece (2) with off-centre and connects.
2, the adjustable eccentric shaft of eccentric throw according to claim 1 is characterized in that: also be set with resilient rubbber cushion (6) in the inboard of mandrel body (1) shaft shoulder (1-1).
3, the adjustable eccentric shaft of eccentric throw according to claim 1 and 2, it is characterized in that: mandrel body (1) be positioned at position between the shaft shoulder (1-1) and the external thread section (1-2), along the circumferential direction also evenly be provided with several diameters of axle that can be used to adjust its diameter of axle and adjust piece (8); The diameter of axle is adjusted piece (8) by screw (7) and mandrel body (1) fixed connection.
4, the adjustable eccentric shaft of eccentric throw according to claim 1 is characterized in that: many ribs through hole (1-3) is a rectangular through-hole.
5, the adjustable eccentric shaft of eccentric throw according to claim 1 is characterized in that: the wedge shape chute that wedge shape chute (1-4) is made up of 60 ° of dovetail grooves of trench bottom (1-4-1) and rectangular channel (1-4-2).
CNB2007100225325A 2007-05-11 2007-05-11 Eccentric shaft with adjustable eccentricity Expired - Fee Related CN100448607C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2007100225325A CN100448607C (en) 2007-05-11 2007-05-11 Eccentric shaft with adjustable eccentricity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2007100225325A CN100448607C (en) 2007-05-11 2007-05-11 Eccentric shaft with adjustable eccentricity

Publications (2)

Publication Number Publication Date
CN101049675A true CN101049675A (en) 2007-10-10
CN100448607C CN100448607C (en) 2009-01-07

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Family Applications (1)

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Country Status (1)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102126149A (en) * 2011-03-22 2011-07-20 安徽瑞达机械有限公司 Fixing and clamping device for machining tri-sectional anchorage device clamping piece
CN101450447B (en) * 2007-11-30 2012-06-13 上海诺玛液压系统有限公司 Jacket for processing eccentric excircle of electro-hydraulic servo valve bush
CN102500541A (en) * 2011-10-10 2012-06-20 江苏科技大学 Step adjusting device of linear eccentricity of eccentric shaft
CN102501168A (en) * 2011-11-10 2012-06-20 大连永明数控机床有限公司 Adjustable eccentric shaft
CN103143964A (en) * 2013-03-21 2013-06-12 宁波市姚江机床制造有限公司 Manufacturing method of rolling die
CN103307088A (en) * 2012-03-12 2013-09-18 义乌市黑白矿山机械有限公司 Self-balancing vernier device of eccentric shaft
CN103307092A (en) * 2012-03-12 2013-09-18 义乌市黑白矿山机械有限公司 Plane type self-balancing eccentric shaft
CN103398087A (en) * 2013-08-07 2013-11-20 上海市计量测试技术研究院 High-precision standard eccentric shaft with adjustable eccentric distance
CN103522107A (en) * 2013-10-23 2014-01-22 中达电机股份有限公司 Tool for machining outer circle of motor thin-wall workpiece
CN106000851A (en) * 2016-07-01 2016-10-12 江苏科技大学 Step and stepless regulation device and regulation method for eccentricity of eccentric shaft
CN107553216A (en) * 2017-09-06 2018-01-09 天津大学 Eccentric adjustable test ball and test system and Rotary Precision of Spindle of Machine Tools detection method
CN108612738A (en) * 2018-06-01 2018-10-02 南通联源机电科技股份有限公司 A kind of making type eccentric shaft mechanism easy to process
CN114345676A (en) * 2022-01-11 2022-04-15 中国人民解放军陆军装甲兵学院 Continuously adjustable eccentric vibration exciter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4127767C2 (en) * 1991-08-22 1994-05-19 Rainer Linsenmeyer Device for the continuous adjustment of the eccentricity of an eccentric
CN1142022A (en) * 1995-07-30 1997-02-05 苏生浓 Automatic adjustable-pitch shaft
US5704600A (en) * 1995-12-05 1998-01-06 Robinson; Brian Owen Power operated clamp assembly
CN2803613Y (en) * 2004-10-29 2006-08-09 中原工学院 Offset regulatable clamp

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101450447B (en) * 2007-11-30 2012-06-13 上海诺玛液压系统有限公司 Jacket for processing eccentric excircle of electro-hydraulic servo valve bush
CN102126149B (en) * 2011-03-22 2013-03-27 安徽瑞达机械有限公司 Fixing and clamping device for machining tri-sectional anchorage device clamping piece
CN102126149A (en) * 2011-03-22 2011-07-20 安徽瑞达机械有限公司 Fixing and clamping device for machining tri-sectional anchorage device clamping piece
CN102500541B (en) * 2011-10-10 2013-11-06 江苏科技大学 Step adjusting device of linear eccentricity of eccentric shaft
CN102500541A (en) * 2011-10-10 2012-06-20 江苏科技大学 Step adjusting device of linear eccentricity of eccentric shaft
CN102501168A (en) * 2011-11-10 2012-06-20 大连永明数控机床有限公司 Adjustable eccentric shaft
CN103307088A (en) * 2012-03-12 2013-09-18 义乌市黑白矿山机械有限公司 Self-balancing vernier device of eccentric shaft
CN103307092A (en) * 2012-03-12 2013-09-18 义乌市黑白矿山机械有限公司 Plane type self-balancing eccentric shaft
CN103307092B (en) * 2012-03-12 2016-05-11 义乌市黑白矿山机械有限公司 A kind of plane formula self-balancing eccentric shaft for jaw crusher
CN103143964A (en) * 2013-03-21 2013-06-12 宁波市姚江机床制造有限公司 Manufacturing method of rolling die
CN103143964B (en) * 2013-03-21 2015-09-09 宁波市姚江机床制造有限公司 Roll die manufacture method
CN103398087A (en) * 2013-08-07 2013-11-20 上海市计量测试技术研究院 High-precision standard eccentric shaft with adjustable eccentric distance
CN103398087B (en) * 2013-08-07 2015-07-29 上海市计量测试技术研究院 The High-precision standard eccentric shaft of adjustable eccentric distance
CN103522107A (en) * 2013-10-23 2014-01-22 中达电机股份有限公司 Tool for machining outer circle of motor thin-wall workpiece
CN106000851A (en) * 2016-07-01 2016-10-12 江苏科技大学 Step and stepless regulation device and regulation method for eccentricity of eccentric shaft
CN106000851B (en) * 2016-07-01 2018-07-06 江苏科技大学 A kind of eccentric shaft is away from having grade and stepless adjusting apparatus and method of adjustment
CN107553216A (en) * 2017-09-06 2018-01-09 天津大学 Eccentric adjustable test ball and test system and Rotary Precision of Spindle of Machine Tools detection method
CN108612738A (en) * 2018-06-01 2018-10-02 南通联源机电科技股份有限公司 A kind of making type eccentric shaft mechanism easy to process
CN114345676A (en) * 2022-01-11 2022-04-15 中国人民解放军陆军装甲兵学院 Continuously adjustable eccentric vibration exciter
CN114345676B (en) * 2022-01-11 2022-09-16 中国人民解放军陆军装甲兵学院 Continuously adjustable eccentric vibration exciter

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Granted publication date: 20090107

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