CN101791763A - Machine tool special for numerical control machining of cross axis faces - Google Patents

Machine tool special for numerical control machining of cross axis faces Download PDF

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Publication number
CN101791763A
CN101791763A CN201010005501A CN201010005501A CN101791763A CN 101791763 A CN101791763 A CN 101791763A CN 201010005501 A CN201010005501 A CN 201010005501A CN 201010005501 A CN201010005501 A CN 201010005501A CN 101791763 A CN101791763 A CN 101791763A
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CN
China
Prior art keywords
head
milling
slide unit
workpiece
drilling
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Pending
Application number
CN201010005501A
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Chinese (zh)
Inventor
兰立成
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.)
Maanshan Lianda Machinery Co Ltd
Original Assignee
Maanshan Lianda Machinery Co Ltd
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Filing date
Publication date
Application filed by Maanshan Lianda Machinery Co Ltd filed Critical Maanshan Lianda Machinery Co Ltd
Priority to CN201010005501A priority Critical patent/CN101791763A/en
Publication of CN101791763A publication Critical patent/CN101791763A/en
Pending legal-status Critical Current

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Abstract

The invention provides a machine tool special for numerical control machining of machi cross axis faces, and belongs to the technical field of machinery manufacture. The special machine tool comprises a numerical control system, a milling head, a drilling head and a longitudinal feed mechanism thereof, a four-station dividing head workbench and a transverse feed mechanism thereof, a longitudinal slip, a transverse slip, a clamp, a guide rail, a base and the like, and is characterized in that: the milling head and the drilling head are arranged in parallel on the longitudinal slip; the central heights of the milling head and the drilling head are consistent with that of the axis of a workpiece; the workpiece is arranged on the four-station dividing head workbench by the clamp; and the dividing head workbench is fixed on the transverse slip. The special machine tool can automatically mill four axle head faces of cross axes and automatically drill central holes on the four axle head faces. The machine tool has the advantages of meeting the requirement on the form and position tolerance of the coaxiality of two axle heads in the same axis of the cross axis and the verticality of the axes vertical to each other, improving the production efficiency and reducing the labor intensity of workers and the production cost.

Description

Machine tool special for numerical control machining of cross axis faces
Technical field
The invention belongs to machinery manufacturing technology field, be specifically related to a kind of cross axis faces tack of universal coupling with spider and the machine tool special for numerical control machining of centering.
Background technology
Universal coupling with spider is widely used in the power transmission of heavy industry equipments such as metallurgy, chemical industry, cross axle is the vital part in such shaft coupling, its quality quality directly has influence on the assembly quality and the service life of Hooks coupling universal coupling, so cross axle not only will have higher strength and stiffness, and higher crudy will be arranged, particularly to guarantee the axiality of coaxial line two spindle noses and the perpendicularity Geometrical Tolerance Principle between the perpendicular diaxon.The technology of processing cross axle is at present: the die forging blank of cross axle, last milling machine carries out end face tack and centering, dividing head is housed on the milling machine table carries out artificial calibration, each axle journal and spheroid of last lathe roughing, reconditioning centre bore after the carburizing, last cylindrical grinder grinding axle journal and connecting portion.This processing technology major defect be the end face tack of four spindle noses and centering this to go on foot basic procedure technology improper, because artificial several times displacement, precision is not high, can not guarantee axiality and perpendicularity Geometrical Tolerance Principle between four spindle noses of cross axle, has influenced the assembly quality of universal coupling with spider, reduced the shaft coupling service behaviour, and manufacturing procedure is many, and the operator is required height, and labour intensity is big, production efficiency is low, the processing cost height.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of positioning accuracy height, machining accuracy to stablize and the high machine tool special for numerical control machining of cross axis faces of production efficiency, be used for the automatic chamfering and the centering of four spindle nose end faces.
The technical scheme that the technical problem to be solved in the present invention is taked is: described machine tool special for numerical control machining of cross axis faces mainly is made up of digital control system, milling head and drilling head and longitudinal feed mechanism, quartering dividing head workbench and transverse feed mechanism, guide rail, base and special fixture etc.Two perpendicular slide unit guide rails are installed on the same base, milling head and drilling head are arranged in parallel on vertical slide unit, and milling cutter and drill bit are along laterally basic alignment, high center with axis of workpiece, the center of milling head and drilling head is high consistent, vertically slide unit is installed on the longitudinal rail, realize moving longitudinally by longitudinal feed mechanism, to adapt to the processing of different size cross axle.Workpiece is contained on the quartering dividing head workbench by special fixture, and quartering dividing head stationary table can realize 90 ° of automatic indexings of workpiece on horizontal slide unit.Horizontal slide unit band workpiece, special fixture, dividing head workbench together can be traversing to the drill centers station from the milling station, realized accurately moving by digital control system control.The mutual perpendicularity of four spindle noses guarantees that by four station automatic indexing mechanisms and vertical guide rail the squareness tolerance grade can reach 6~7 grades.Longitudinal feed mechanism and transverse feed mechanism all have separately stepper motor and ball-screw to drive.
At first reserve the zero-bit of digital control system, promptly moving horizontal slide unit makes dividing head centre aim at the drilling head center line, guarantee that the axiality grade of tolerance reaches 6~7 grades, again according to the specification of cross axle, determined milling head milling cutter lengthwise position by digital control system, cross axle die forging blank is installed on the quartering dividing head workbench (when the drilling position) by special fixture, the center when special fixture keeps flat blank of cross axle overlaps with dividing head centre.Open milling head and transverse feed mechanism and can realize the milling of spindle nose end face.After milling what a end face, milling head retreats, and transverse feed mechanism retreats, 90 ° of dividing head automatic indexings repeat said process, but second spindle nose end face of milling, finish the milling of totally 4 end faces successively, this kind processing method has guaranteed distance, the depth of parallelism and the perpendicularity between the end face.After having milled end face, milling head and drilling head retreat, and make workpiece move on to the drilling station by digital control system control transverse feed mechanism.Open drilling head and longitudinal feed mechanism, realize the drilling of a spindle nose centre bore.Drilling head retreats, 90 ° of indexing mechanism action calibration, and the centre bore of the 2nd spindle nose is made a call in the longitudinal feed mechanism feeding.Repeat said process and finish the drilling of the centre bore of totally 4 spindle noses successively.
The invention has the beneficial effects as follows, cross axle machine tool special for numerical control machining simple structure, can finish the tack of four spindle nose end faces of cross axle and the operation of centering, the axiality of two spindle noses on the cross axle coaxial line and the perpendicularity Geometrical Tolerance Principle of perpendicular two axial lines have been satisfied, for subsequent machining technology has been laid basis preferably, improve the whole crudy of cross axle, improved production efficiency simultaneously, reduced labor strength and production cost.
Description of drawings
Fig. 1 is a processing object cross axle structural representation of the present invention
Fig. 2 is the front view of machine tool special for numerical control machining of cross axis faces of the present invention
Fig. 3 is the vertical view of Fig. 2
Fig. 4 is a machine tool special for numerical control machining of cross axis faces drilling station vertical view of the present invention
1, longitudinal feed mechanism 2, longitudinal rail 3, vertical slide unit 4, milling head 5, workpiece 6, special fixture 7, quartering dividing head workbench 8, horizontal slide unit 9, cross slide way 10, base 11, transverse feed mechanism 12, drilling head
The specific embodiment
Embodiment 1: the processing of cross axle spindle nose face milling
Accompanying drawing 1 is the structural representation of processing object of the present invention " cross axle ".Cross axle spindle nose face milling Special Purpose Machine for Processing is formed (accompanying drawing 3) by digital control system, longitudinal feed mechanism (1), longitudinal rail (2), vertical slide unit (3), milling head (4), special fixture (6), quartering dividing head workbench (7), horizontal slide unit (8), cross slide way (9), base (10), transverse feed mechanism (11) etc., and wherein digital control system is not shown.
Longitudinal rail (2) is arranged vertically mutually with cross slide way (9), and vertically slide unit (3), horizontal slide unit (8) are installed on the respective track respectively.Workpiece (5), special fixture (6), quartering dividing head workbench (7) are installed on the horizontal slide unit (8).Milling head (4) is installed on vertical slide unit (3), and high center with axis of workpiece, the center of milling head is high consistent.Longitudinal feed mechanism (1) and transverse feed mechanism (11) all have separately stepper motor and ball-screw to drive.
Axial length dimension according to a certain specification cross axle, by digital control system control longitudinal feed mechanism (1) milling head (4) length feed is put in place, drilling head (12) retreats, on the drilling station, by special fixture (6) workpiece (5) is installed, the a certain spindle nose of workpiece (5) is opened milling head (4) and transverse feed mechanism (11) facing to milling head, realizes the milling of this spindle nose end face.After milling well, longitudinal feed mechanism (1), transverse feed mechanism (11) retreat, 90 ° of dividing head (7) automatic indexings, milling head (4) feeding puts in place, open transverse feed mechanism (11), realize the milling of spindle nose end face for the second time, repeat above-mentioned steps successively, finish the milling of totally 4 orthogonal spindle nose end faces.
Embodiment 2, cross axle spindle nose centre bore boring processing
Cross axle spindle nose centre bore boring Special Purpose Machine for Processing is formed (accompanying drawing 4) by digital control system, longitudinal feed mechanism (1), longitudinal rail (2), vertical slide unit (3), drilling head (12), special fixture (6), quartering dividing head workbench (7), horizontal slide unit (8), cross slide way (9), base (10), transverse feed mechanism (11) etc., and wherein digital control system is not shown.On the basis of the special purpose machine tool of embodiment 1, drilling head (12) is arranged in parallel on vertical slide unit (3) with milling head (4), and drilling head (12) is fixed with the distance between center line of milling head (4), and the high center height with axis of workpiece in the center of drilling head (12) is consistent.
After workpiece spindle head end facing cut is good, milling head (4) retreats, drilling head (12) retreats, make workpiece (5) accurately be displaced to the drilling station by digital control system control transverse feed mechanism (11) from the milling station, the a certain end face of workpiece (5) is aimed at drilling head (12), open drilling head (12) and longitudinal feed mechanism (1) feeding, beat the centre bore of what a end face, drilling head (12) retreats then, 90 ° of dividing head (7) automatic indexings, open drilling head (12) and longitudinal feed mechanism (1) feeding, realize the drilling of second spindle nose end face centre bore.Repeat above-mentioned steps successively, realize the drilling of centre bore on totally four vertical axis end surfaces.

Claims (4)

1. machine tool special for numerical control machining of cross axis faces, mainly by digital control system, milling head (4) and drilling head (12) and longitudinal feed mechanism (1) thereof, four station dividing head workbench (7) and transverse feed mechanism (11) thereof, vertical slide unit (3), horizontal slide unit (8), special fixture (6), guide rail (2) (9), base compositions such as (10), it is characterized in that perpendicular longitudinal rail (2) and cross slide way (9) are installed on the same base (10), milling head (4) and drilling head (12) are arranged in parallel on vertical slide unit (3), and milling cutter and drill bit are along laterally basic alignment, and milling head (4) is high consistent with drilling head (12) center; Vertically slide unit (3) is installed on the longitudinal rail (2); Workpiece (5) is contained on the quartering dividing head workbench (7) by special fixture (6), and quartering dividing head workbench (7) is fixed on the horizontal slide unit (8), and workpiece (5) makes high center with milling head (4), its center high consistent by cushion block; Laterally slide unit (8) is installed on the cross slide way (9).
2. machine tool special for numerical control machining of cross axis faces according to claim 1 is characterized in that: vertically slide unit (3) and horizontal slide unit (8) are driven by longitudinal feed mechanism (1) and transverse feed mechanism (11) respectively.Realize vertically moving of vertical slide unit (3) by longitudinal feed mechanism (1), to adapt to the milling head location and the drilling feeding of different size workpiece (5).Realize moving of horizontal slide unit (8) by transverse feed mechanism (11), realize the face milling feeding and workpiece is moved to the drilling station from the milling station.
3. machine tool special for numerical control machining of cross axis faces according to claim 1, it is characterized in that: the distance that workpiece (5) moves to the milling station from the drilling station equals the distance at milling head (4) center and drilling head (12) center, is realized accurately moving by digital control system control.
4. machine tool special for numerical control machining of cross axis faces according to claim 1, it is characterized in that: workbench and dividing head that workpiece is installed are integrated, it is quartering dividing head workbench (7), special fixture (6) when (7), guarantees that the cross hairs center of cross axle workpiece (5) when keeping flat overlaps with the center of dividing head (7) with cross axle workpiece (5) clamping on quartering dividing head workbench.
CN201010005501A 2010-01-18 2010-01-18 Machine tool special for numerical control machining of cross axis faces Pending CN101791763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010005501A CN101791763A (en) 2010-01-18 2010-01-18 Machine tool special for numerical control machining of cross axis faces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010005501A CN101791763A (en) 2010-01-18 2010-01-18 Machine tool special for numerical control machining of cross axis faces

Publications (1)

Publication Number Publication Date
CN101791763A true CN101791763A (en) 2010-08-04

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102513865A (en) * 2011-12-18 2012-06-27 张铮 Cold centering device for steel billet ends
CN103551855A (en) * 2013-11-14 2014-02-05 上海中船三井造船柴油机有限公司 Method and device for simultaneous drilling and reaming processing of crankshaft and flywheel of marine low-speed diesel engine
CN103624302A (en) * 2013-12-02 2014-03-12 张铮 Steel billet end centering machine
CN104708323A (en) * 2015-03-18 2015-06-17 杭州正强万向节有限公司 Angle-variable universal joint pin body full-automatic tapping machine
CN106312562A (en) * 2016-10-13 2017-01-11 宁波高新区敦和科技有限公司 Universal joint pin machining device
CN107160118A (en) * 2017-07-05 2017-09-15 泰州市东方传动技术有限公司 A kind of processing technology of cross axle

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102513865A (en) * 2011-12-18 2012-06-27 张铮 Cold centering device for steel billet ends
CN103551855A (en) * 2013-11-14 2014-02-05 上海中船三井造船柴油机有限公司 Method and device for simultaneous drilling and reaming processing of crankshaft and flywheel of marine low-speed diesel engine
CN103551855B (en) * 2013-11-14 2016-01-13 上海中船三井造船柴油机有限公司 Same processing method and the equipment of drilling and reaming of marine low speed diesel engine crankshaft-flywheel
CN103624302A (en) * 2013-12-02 2014-03-12 张铮 Steel billet end centering machine
CN104708323A (en) * 2015-03-18 2015-06-17 杭州正强万向节有限公司 Angle-variable universal joint pin body full-automatic tapping machine
CN106312562A (en) * 2016-10-13 2017-01-11 宁波高新区敦和科技有限公司 Universal joint pin machining device
CN107160118A (en) * 2017-07-05 2017-09-15 泰州市东方传动技术有限公司 A kind of processing technology of cross axle

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