传统牛头刨床双向刨的设计与实现

Jun.2013机 床 与 液 压Hydromechatronics Engineering Vo1.4l No.12DOI：10.3969/j.issn.1001-3881。2013。12.014Design and Realization of the Traditional ShaperBidirectional PlanningZHOU Ruitao ，ZHENG Weiganga.School ofEnergy and Power Engineering；b.Engineering Training Center，Wuhan University of Technology，Wuhan 430063，China1.IntroductionAbstract：Traditional Shaper return trip is a kind of idie motion.therefore it wilI lcad to low efi-ciency and wil waste a lot of time and energy.How to use the return trip of the planer is an im-portant way to improve the eficiency.This paper introduces a method of how to add the reverseplane tool on the traditional shaper and the replacement of two knives is controled by electromag-net and then the backhaul of traditional shaper wil be efectively used to improve the eficiencyand to obtain the high precision of planer.Therefore，the results of this paper wil improve theperformance of planer technology。

Key words：Traditional Shaper，bidirectional planning，planer transformationTraditional Shaper can only do one-·way plan·ning，i.e. the returning of traditional Shaper is akind of idle motion. This characteristic determinesthe low efficiency of traditional shaper machine.A1-though traditional Shaper has a quick return charac-teristic，this is not a fundamental solution to the solvelow efficiency problem and make no use of the deple-tion problem[1].Since there exists only one planetool for the traditional shaper，the real cutting edge ofthis machine is very limited. Moreover，the machi-ning accuracy is dificult to get improved due to thefact that the planning tends knife marks formed onthe surface of the work piece[2].Bi-planning Shap-er innovative design methods are described in a lot ofliterature and comprehensive comparisons found thatmost of these designs are suitable for the productionof new planer，but for present mainly used traditionalShaper transform ation still exist the problems such ashigh cost and complex structure.This paper proposesReceived：2013-O1-22ZHENG Weigan.E-mail：zfeidiao### 126.cona simple bi-planning transformation method for thetraditional Shaper，i.e.，the traditional planer struc-ture will not be changed and the reverse plane toolwill be added and controled by electromagnet to a-void the trouble of ram constant force is0kineticmechanism design.Since the return motion of shaperis adopted，the eficiency machining accuracy of thetraditional shaper wil be tremendously improved。

Due to the simple and reliable characteristics， atransformation experiment is conducted in this paperand the feasibility of this design has been verifledbased on the B6050 type of Shaper。

2.Design ideasA reverse plane tool which is added at shapertool holder is installed behind the forward plane toolat the same tool holder clamping shaft in the contra。

nr.It is shifted by a certain distance in the transla。

tion direction of work piece.Th e pitch size is adjust-able to make reverse plane tool just planning on thecrest beturn motion will flatten the crest.The replacement ofplane tools are controled by the electromagnet whichis installed at tool holder clamping shaft and the tray-el switch is used to turn on or ofthe current of elec。

ZHOU Rui-tao，et al：Design and Realization of the Traditional ShaperBidirectional Planning 67tromagnet。

3.Design and Realization of Shaper bidi-rectional planningIn the direction o±planer forward movement，there is a certain angle of two plane tools which areinstalled behind the forw ard plane tool at the sametool holder clamping shaft.The front one is forw ardplane tool and the back one is reverse plane tool；Inthe direction of work piece plan，it is shifted by acertain distance and able to adjust the pitch size tomake reverse plane tool just planning on the crest be-tween two forward planning marks. Due to the high-speed of return motion，the machining accuracy couldbe improved。

The electromagnet is installed at tool holderclamping shaft and the current will be turned on or ofby the travel switch. Electromagnet connects toolholder clamping shaft though a rod.Then，all theparts including two knifes， pressed blocks， turretshaft and clamping bolts are assembled at the bidirec-tional cuter head.When the electromagnet is not en-ergized，the iron will not be sucked，the clampingshaft will not be raised.and the forward plane toolwill be in upright position，the reverse plane tool willtilt backwards and the forward tip will be lower thanthe reverse one. During the forward movement，theforw ard plane tool will be working en the electromagnet is energized， the iron will be sucked，theclamping shaft is lifted up，the reverse plane tool willbe in the upright position.the forw ard plane tool isdeclined and the reverses tip is lower than the for-ward one.Therefore.the reverse plane tool will workduring the return movement of shaper。

The control system consists of the travel switchand an AC contactor.The AC contactor is controlledby the trip switch. However，the electromagnet iscontrolled by the AC contactor to ensure a replace-ment in each planning end·-of-stroke dual planer time·ly。

4.Specific Implementation methodIn Fig.1：1)Forward Plane Tool(8)，Reverse Plane Tool(10)，through the Tool holder clamping Shaft(2)lo-eating hole，Tool holder clamping Shaft(2)Passthrough Tool holder(1 1)through Hole，by ClampingBolts(1)，Presed Block 1(7)，Pressed Block 2(9)Fixed，forming a whole planning head.The tool hold-er(11)be hanged on Tool Holder Seat(12)by thepin(13).The pin(13)One end with a coter pin(14).The tool holder(11)lower end of the rightside against the Tool Holder Seat(1 2)lower end ofthe sudden stage。thus Forward Plane Tool(8)is theupright position，the Reverse Plane Tool(10)Rightangled inclined，and the Reverse Plane Tool top high-er than the Forward Plane Tool top。

2)The electromagnet(4)is installed at Front-end of Tool holder clamping Shaft(2)and is con-nected by the rod(5).The electromagnet(4)isfixed on the Electromagnet holder(6)by bolts andthe Electromagnet holder(6)is fixed on Tool HolderSeat(12)。

3)As shown of left view in Fig.1，twice are noton the same axis in the front and real"and are separa-ted by an appropriate distance along the work piecetranslational directi0n。

1 2 3 4 5 6 7 8 9 10 I1 12 1 3 l4(a)Thefrontview (b)Theleftview1.Clamping Bolts，2.Tool holder clamping Shaft，3.IJolts，4. Electromagnet，5.Rod，6.Electromagnet holder，7。

Pressed Block 1.8.F0rward P1ane Tol，9.Pressed Block2。10. Reverse P1&tie Tool，11. Tol Holder ，12.ToolHolder Seat，13.Pin，14.Cotter PinFig.1 Diagram of the bidirectional planning toolholder frame structure5.Modification experiments based on theB6050 type Shaper5.1.B6050 shaper profileTh e B6050 type Shaper planning machine is ageneral-purpose machine which could be applied toflat，T-slot，dovetail groove.Th e rigidity of the ma-chine tool is good and suitable for the batch process-ing parts whose lenh wil not exceed 650 mm.Th em aXlm Um m aXlm Um length of the planning is 500 mm；Thedistance between the ram bottom and theHydromechatronics Engineeringwork piece surface is 370 mm：The maximum movingdistances of workbench are as follows：horizontal dis-tance 500 mm.vertical distance 300 mm ；The maxi-mum rotation angle of workbench is ±90。：The max·imum vertical travel distance of tool holder is 1 10mm ：The moving frequencies of ram are as follows：15，24，37，51，64，80，102，126，158 times/min.Th eRam reciprocating amount of time table feed are：theratchet rotate a grid.vertical distance 0.0845 mm，horizontal distance 0.133 mm。

plane tool in upward tilt.the reverse plane tool willbe in a vertica1 state planning at the return process。

2、When the reverse plane too1 comes to the endof trave1.AC contactor power slider touch the end oftrip switch；the electromagnet will be energized andput down the rod and the tool holder clamping shaft，the reverse plane tool will restore to the state of thetilt.up.the forward plane tool will be in the uprightposition.This is the second tool change。

5：2·Th：. B6050 type shaper b Ilirectiona。p an 7.Conclusi0nsnm g reallZationectromagnetlamping shaftorward planetoolFig.2 Modifed structure show6.The course1)Planer start。cuter head at the starting endof the forw ard planning stroke.the forward plane too1wil be in the upright position，forw ard planning willwork，the pin and the tool holder seat wil be lower atthe end of sudden stage.When forw ard planer comesto the end of trave1.the slider wil touch front-endtrip switch which is installed in slide pillow and theAC contactor will be energized，the electromagnetwill be energized，the rod wil be sucked up and pulup the tool holder clamping shaft，make the forward传统牛头刨床双向刨的设计与实现周瑞涛 ，郑卫刚By adding reverse plane tool on traditional Shap-er tooI holder to realize the design of traditional Shap-er bi.planning，the exchange of planers is controledby a electromagnet.The return movement of shaperwill be used and the performance efficiency of ma-chine is improved.At the same time.the structure ofmachine will not be changed and the machining accu-racy will be improved as wel1.Based on the results ofthis paper，a conclusion could be drawn that the de-sign is comparatively simple and is easy to imple-ment.This wilI provide some reference for the tradi-tional Shaper bidirectional transformation。

References：1] U SHUPING，ZHu KUIQING，CAI Chang.MechanismInnovative Design and Reconstruction for Bi-directionalPlanning ShaperJ 1.Submitted to Journal of Coal MineMachinery，2008。22(29)：152-154。

2] WANG FENGLAN. SHA YUZHANG. Bi-planningShaper institutions innovative design lJ 1.JOURNAL 0FMACHINE DESIGN，2007，11(11)：48-49。

武汉理工大学 a.能源与动力工程学院；b.工程训练中心，武汉 460063摘要：传统牛头刨床的返程为空行程，致使其工作效率大大降低，造成了时间与能源的浪费。针对该问题.在传统牛头刨床的刀架上添加反向刨刀，通过电磁铁控制正、反刨刀的更换，实现了对传统牛头刨床回程的有效利用，提高了刨床的工作效率和加工精度，为刨床的技术改进提供了支持。

关键词：传统牛头刨床 ；双向刨；刨床改造中图分类号：TH16