CN101537517A - Numerical-control machine tool for processing spiral bevel gear - Google Patents

Numerical-control machine tool for processing spiral bevel gear Download PDF

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Publication number
CN101537517A
CN101537517A CN200910043149A CN200910043149A CN101537517A CN 101537517 A CN101537517 A CN 101537517A CN 200910043149 A CN200910043149 A CN 200910043149A CN 200910043149 A CN200910043149 A CN 200910043149A CN 101537517 A CN101537517 A CN 101537517A
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China
Prior art keywords
toolbox
workpiece box
box
machine tool
track
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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.)
Pending
Application number
CN200910043149A
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Chinese (zh)
Inventor
阳益江
丁志文
陈敢
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HUNAN ZHONGDA CHUANGYUAN DIGITAL CONTROL EQUIPMENT CO Ltd
Original Assignee
HUNAN ZHONGDA CHUANGYUAN DIGITAL CONTROL EQUIPMENT CO Ltd
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Priority to CN200910043149A priority Critical patent/CN101537517A/en
Publication of CN101537517A publication Critical patent/CN101537517A/en
Pending legal-status Critical Current

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Abstract

The invention provides a numerical-control machine tool for processing spiral bevel gear, which comprises a machine tool body, a workpiece box, a turn table of the workpiece box, a tool box and the supporting post of the tool box, wherein, the machine tool body is T-shaped, and two groups of rails X and Z which are perpendicular to each other are formed on the machine tool body; the turn table of the workpiece box is mounted on the rail X; the supporting post of the tool box is mounted on the rail Z; the workpiece box is mounted on the turn table thereof via turntable bearings; the supporting post of the tool box has a gantry structure, the sliding rail Y of the tool box is formed on one side of the gantry, and two traction screw rods are arranged in the gantry; and screw holes are formed on the tool box, the tool box is rotationally mounted on the traction screw rods via the screw holes, and one end of the tool box is stuck to the rail Y via slideway. The invention has the following advantages: the structure is reasonable, the operation and the application are convenient, the workpiece box has a small turning radius and large turning angle, the machine tool has small volume and stable operation, and the tool has high positioning accuracy, so that the invention is applicable to industrialized production, in particular to the numerical-control processing of large-size spiral bevel gear.

Description

A kind of numerical-control machine tool for processing spiral bevel gear
Technical field
The invention discloses a kind of numerical-control machine tool for processing spiral bevel gear, belong to the Digit Control Machine Tool manufacture field.
Background technology
Numerical-control machine tool for processing spiral bevel gear is because of it has stock-removing efficiency height, the high Machining Spiral Bevel Gear field that is widely used in of machining accuracy.Traditional numerical-control machine tool for processing spiral bevel gear, because of existing defective on its overall construction design, there are the following problems to cause it: referring to accompanying drawing 1, the numerical-control machine tool for processing spiral bevel gear of traditional structure, its workpiece box center of gravity does not overlap with its centre of gyration, forms a kind of bias structure, and the radius of gyration is big, produce bigger centrifugal force during the B axis rotation, influence the stationarity of workpiece box motion; In addition, because the radius of gyration is big, cause the lathe bed of supporting workpiece case and slide unit size big, Z is big to the guide rail span of motion, makes that the support member rigidity requirement of workpiece box is higher, increases the manufacturing cost of lathe; Simultaneously, the numerical-control machine tool for processing spiral bevel gear of traditional structure, because it adopts the structure of workpiece box center of gravity and the biasing of its centre of gyration, make the angle of revolution of workpiece box less, the angle of revolution is only between-5 degree-90 degree, when the anglec of rotation for-5 casings of workpiece when spending and below slide unit and the associated components of cutter interfere easily, influence normal running, the operation of lathe.Referring to accompanying drawing 2, traditional numerical-control machine tool for processing spiral bevel gear, its toolbox support post is a single arm type, toolbox is cantilever-shaped in a side of column and moves up and down, center of gravity is in bias state, during the toolbox motion, its gravity will produce disturbing moment, influence stationarity and positioning accuracy that toolbox moves up and down.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art and provide a kind of rational in infrastructure, easy for operation, the workpiece box radius of gyration is little, the angle of revolution is big, the lathe volume is little, operate steadily, numerical-control machine tool for processing spiral bevel gear that the cutter positioning precision is high.
The present invention adopts following proposal to realize: a kind of numerical-control machine tool for processing spiral bevel gear comprises lathe bed, workpiece box, workpiece box panoramic table, toolbox, toolbox support post; Described lathe bed is the T font, and the lathe bed plane is provided with two groups of orthogonal track X, Z, and described workpiece box panoramic table is installed in that described track X goes up and can endwisely slipping along track X; Described toolbox support post is installed in described track Z and upward and by screw mandrel draws its endwisely slipping along track Z; Described workpiece box is installed on the described workpiece box panoramic table by turntable bearing, and the axle center of described turntable bearing overlaps with described workpiece box center of gravity; Described toolbox support post is a gantry structure, and a side at described gantry is provided with the toolbox sliding rail Y perpendicular to described track Z, is provided with two traction screw mandrels that are parallel to described track Y in gantry; On the center of gravity cross section of described toolbox, be provided with the silk hole that is in cutter spindle both sides in the described toolbox and axis and cutter spindle axis normal, described toolbox is by on the traction screw mandrel of described silk hole spinning in described gantry, the side of described toolbox one end is provided with slideway, the axis normal of cutter spindle in the axis of described slideway and the described toolbox, described slipway clamp is contained on the toolbox sliding rail Y that is located on the described toolbox support post, in described workpiece box bottom the workpiece box device for revolving and driving is installed.
Among the present invention, described workpiece box device for revolving and driving is the crack transmission worm gear or the crack driving gear pair that disappears of disappearing.
Among the present invention, the described crack transmission worm gear that disappears is meshed by two worm and wheels and constitutes; The described crack driving gear pair that disappears is meshing with each other by three gears and constitutes.
Operation principle of the present invention is sketched in down: during a kind of numerical-control machine tool for processing spiral bevel gear work of the present invention, lathe under the numerical control program control of setting, each parts self contained function, wherein: the planer-type support post is made Z to moving along the track Z on the lathe bed; Toolbox is made Y to motion at support post upper edge track Y; Panoramic table is made X to motion at lathe bed upper edge track X; Workpiece box is done gyration on panoramic table; The workpiece box main shaft self is done gyration; The motion follow procedure control of above-mentioned five directions takes exercises simultaneously or partly; Then by default rotating speed independent operation, the stack of above-mentioned six kinds of motions (just usually said six-axle five-linkage) can realize the cutting to workpiece, finally processes qualified spiral bevel gear by design parameter in the gyration of cutter spindle.
The present invention is owing to adopt said structure, utilize the turntable bearing axle center to overlap with the workpiece box center of gravity, and by the crack transmission that disappears of two gear clearance elimination transmissions or twin worm, make compact integral structure, the workpiece box radius of gyration reduces greatly, and centrifugal force is little during revolution, makes the workpiece box motion more steady, effectively reduced the size of workpiece box support member, reduced requirement support member rigidity; Simultaneously, because the radius of gyration of workpiece box is little, its angle of revolution obviously increases, and angle of revolution of the present invention can reach-90 degree-90 degree; The phenomenon of overcome effectively that workpiece box biasing radius of gyration stationarity big, gyration in the prior art is poor, workpiece box and toolbox being interfered mutually in the revolution.Simultaneously, the present invention adopts the planer-type support post, and toolbox by the double lead traction, moves up and down in gantry of support post stably, makes distortion of support post left-right symmetry holding capacity and thermal deformation, thereby effectively reduces the distortion of support post; In addition, the toolbox center of gravity is between the two traction screw mandrels, when moving acceleration and deceleration up and down, can not produce disturbing moment, thereby, effectively improve the positioning accuracy of toolbox.In sum, the present invention is rational in infrastructure, easy for operation, the workpiece box radius of gyration is little, the angle of revolution is big, the lathe volume is little, operate steadily, cutter positioning precision height, is suitable for suitability for industrialized production, is specially adapted to the digital control processing of big specification spiral bevel gear.
Description of drawings
Accompanying drawing 1 is the workpiece box revolving structure schematic diagram of existing hypoid generating machine.
Accompanying drawing 2 is the toolbox and the support post structural representation of existing hypoid generating machine.
Accompanying drawing 3 is structural representation of the present invention.
Accompanying drawing 4 is the installation site schematic diagram of parts 10 in the accompanying drawing 3.
Accompanying drawing 5 is worm gear structural representation in the workpiece box device for revolving and driving among the present invention.
Accompanying drawing 6 is workpiece box device for revolving and driving middle gear auxiliary structure schematic diagram among the present invention.
Among the figure: 1---lathe bed, 2---workpiece box, 3---workpiece box panoramic table, 4---toolbox, 5---toolbox support post, 6---screw mandrel, 7---turntable bearing, 8,9---traction screw mandrel, 10---workpiece box device for revolving and driving, 11,13---worm screw, 12---worm gear, 14,15,16---gear.
The specific embodiment
Concrete structure of the present invention describes in detail below in conjunction with embodiment.
Referring to accompanying drawing 3, a kind of numerical-control machine tool for processing spiral bevel gear of the present invention comprises lathe bed 1, workpiece box 2, workpiece box panoramic table 3, toolbox 4, toolbox support post 5; Described lathe bed 1 is the T font, and the lathe bed plane is provided with two groups of orthogonal track X, Z, and described workpiece box panoramic table 3 is installed in that described track X goes up and can endwisely slipping along track X; Described toolbox support post 5 is installed in described track Z and upward and by screw mandrel 6 draws its endwisely slipping along track Z; Described workpiece box 2 is installed on the described workpiece box panoramic table 3 by turntable bearing 7, and the axle center of described turntable bearing 7 overlaps with described workpiece box 2 centers of gravity; Described toolbox support post 5 is a gantry structure, and a side at described gantry is provided with the toolbox sliding rail Y perpendicular to described track Z, is provided with two traction screw mandrels 8,9 that are parallel to described toolbox sliding rail Y in gantry; On the center of gravity cross section of described toolbox 4, be provided with the silk hole that is in cutter spindle both sides in the described toolbox 4 and axis and cutter spindle axis normal, described toolbox 4 is by on the traction screw mandrel 8,9 of described silk hole spinning in described gantry, the side of described toolbox 4 one ends is provided with slideway, the axis normal of cutter spindle in the axis of described slideway and the described toolbox 4, described slipway clamp are contained on the toolbox sliding rail Y that is located on the described toolbox support post 5; In described workpiece box 2 bottoms workpiece box device for revolving and driving 10 is installed; Described workpiece box device for revolving and driving 10 is the crack transmission worm gear or the crack driving gear pair that disappears of disappearing.The described crack transmission worm gear that disappears is meshed with worm gear 12 by worm screw 11,13 and constitutes; The described crack driving gear pair that disappears is meshing with each other by gear 14,15,16 and constitutes.
Use when of the present invention, lathe under the numerical control program control of setting, each parts self contained function, wherein: the planer-type support post is made Z to moving along the track Z on the lathe bed; Toolbox is made Y to motion at support post upper edge track Y; Panoramic table is made X to motion at lathe bed upper edge track X; Workpiece box is done gyration on panoramic table; The workpiece box main shaft self is done gyration; The motion follow procedure control of above-mentioned five directions takes exercises simultaneously or partly; Then by default rotating speed independent operation, the stack of above-mentioned six kinds of motions (just usually said six-axle five-linkage) can realize the cutting to workpiece, finally processes qualified spiral bevel gear by design parameter in the gyration of cutter spindle.

Claims (3)

1, a kind of numerical-control machine tool for processing spiral bevel gear comprises lathe bed, workpiece box, workpiece box panoramic table, toolbox, toolbox support post; Described lathe bed is the T font, and the lathe bed plane is provided with two groups of orthogonal track X, Z, and described workpiece box panoramic table is installed in that described track X goes up and can endwisely slipping along track X; Described toolbox support post is installed in described track Z and upward and by screw mandrel draws its endwisely slipping along track Z; It is characterized in that: described workpiece box is installed on the described workpiece box panoramic table by turntable bearing, and the axle center of described turntable bearing overlaps with described workpiece box center of gravity; Described toolbox support post is a gantry structure, and a side at described gantry is provided with the toolbox sliding rail Y perpendicular to described track Z, is provided with two traction screw mandrels that are parallel to described track Y in gantry; On the center of gravity cross section of described toolbox, be provided with the silk hole that is in cutter spindle both sides in the described toolbox and axis and cutter spindle axis normal, described toolbox is by on the traction screw mandrel of described silk hole spinning in described gantry, the side of described toolbox one end is provided with slideway, the axis normal of cutter spindle in the axis of described slideway and the described toolbox, described slipway clamp is contained on the toolbox sliding rail Y that is located on the described toolbox support post, in described workpiece box bottom the workpiece box device for revolving and driving is installed.
2, a kind of numerical-control machine tool for processing spiral bevel gear according to claim 1 is characterized in that: described workpiece box device for revolving and driving is the crack transmission worm gear or the crack driving gear pair that disappears of disappearing.
3, a kind of numerical-control machine tool for processing spiral bevel gear according to claim 2 is characterized in that: the described crack transmission worm gear that disappears is meshed by two worm and wheels and constitutes; The described crack driving gear pair that disappears is meshing with each other by three gears and constitutes.
CN200910043149A 2009-04-17 2009-04-17 Numerical-control machine tool for processing spiral bevel gear Pending CN101537517A (en)

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Application Number Priority Date Filing Date Title
CN200910043149A CN101537517A (en) 2009-04-17 2009-04-17 Numerical-control machine tool for processing spiral bevel gear

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Application Number Priority Date Filing Date Title
CN200910043149A CN101537517A (en) 2009-04-17 2009-04-17 Numerical-control machine tool for processing spiral bevel gear

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CN101537517A true CN101537517A (en) 2009-09-23

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102101203A (en) * 2010-12-30 2011-06-22 湖南中大创远数控装备有限公司 Processing machine tool of six-axis five-linkage helical bevel gear
CN102554357A (en) * 2012-02-20 2012-07-11 江阴市华特康机械有限公司 Casting flange flash push boring machine
CN102773714A (en) * 2012-07-16 2012-11-14 上海三一精机有限公司 Vertical machining center and tool bed structure thereof
CN103143789A (en) * 2013-04-02 2013-06-12 湖南中大创远数控装备有限公司 Gear cutting machine
CN103182563A (en) * 2012-10-19 2013-07-03 王命标 Numerical control curved-tooth broaching machine
CN104439372A (en) * 2014-11-18 2015-03-25 宁波市凯博数控机械有限公司 Numerical control boring and milling machine machining complex curved surface deep cavity
CN106041224A (en) * 2016-08-16 2016-10-26 天津大学 Spiral bevel gear machining method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102101203A (en) * 2010-12-30 2011-06-22 湖南中大创远数控装备有限公司 Processing machine tool of six-axis five-linkage helical bevel gear
CN102554357A (en) * 2012-02-20 2012-07-11 江阴市华特康机械有限公司 Casting flange flash push boring machine
CN102554357B (en) * 2012-02-20 2013-07-17 江阴市华特康机械有限公司 Casting flange flash push boring machine
CN102773714A (en) * 2012-07-16 2012-11-14 上海三一精机有限公司 Vertical machining center and tool bed structure thereof
CN103182563A (en) * 2012-10-19 2013-07-03 王命标 Numerical control curved-tooth broaching machine
CN103143789A (en) * 2013-04-02 2013-06-12 湖南中大创远数控装备有限公司 Gear cutting machine
CN104439372A (en) * 2014-11-18 2015-03-25 宁波市凯博数控机械有限公司 Numerical control boring and milling machine machining complex curved surface deep cavity
CN104439372B (en) * 2014-11-18 2018-12-07 宁波市凯博数控机械有限公司 A kind of digital-control boring-milling machine for processing complex-curved deep chamber
CN106041224A (en) * 2016-08-16 2016-10-26 天津大学 Spiral bevel gear machining method
CN106041224B (en) * 2016-08-16 2018-06-08 天津大学 A kind of Machining Spiral Bevel Gear method

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