CN202344050U - Numerical control gear milling machine for extension epicycloid bevel gear - Google Patents
Numerical control gear milling machine for extension epicycloid bevel gear Download PDFInfo
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- CN202344050U CN202344050U CN2011204776865U CN201120477686U CN202344050U CN 202344050 U CN202344050 U CN 202344050U CN 2011204776865 U CN2011204776865 U CN 2011204776865U CN 201120477686 U CN201120477686 U CN 201120477686U CN 202344050 U CN202344050 U CN 202344050U
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Abstract
The utility model discloses a numerical control gear milling machine for an extension epicycloid bevel gear. According to the numerical control gear milling machine, a rotary table which is rotated in the horizontal plane is arranged on a longitudinal sliding table; a workpiece driving box is arranged on the rotary table and is provided with a workpiece main shaft, and a drive motor is arranged on the workpiece driving box; a first-level parallel shaft gear retarding mechanism with a clearance eliminating function is arranged in the workpiece driving box; the drive motor is a servo motor; an output shaft of the servo motor is connected with a power input shaft of the retarding mechanism; and a power output shaft of the retarding mechanism is connected with the workpiece main shaft. The workpiece driving box drives the workpiece main shaft to rotate by using the first-level gear retarding mechanism for a parallel shaft, a meshing clearance of the gear caused by machining errors and abrasion is eliminated by a clearance eliminating mechanism in the gear retarding mechanism, and the transmission accuracy can be greatly improved, so that a high fixed transmission ratio is formed between a tooth blank workpiece and a cutting tool; and therefore, a qualified extension epicycloid bevel gear can be machined.
Description
Technical field
The utility model relates to a kind of bevel gear cutting machine technical field that belongs to, and says so accurately to relate to a kind of extension epicycloid bevel gear numerical control gear milling machine.
Background technology
Extend epicycloid equal-depth teeth bevel gear and mainly use continuous generation processing and manufacturing, be applied in automobile and the engineering machinery drive axle as main drive gear.During the twentieth century 70-80 age, the many producers of China cost huge fund from external import a large amount of spiral bevel gear generators.Wherein, the mechanical type spiral bevel gear generator of sharp Kanggong difficult to understand department production has complicated tilt mechanism and mechanical drive train, and the equipment adjustment is complicated, and machining accuracy is lower; The six-axis linkage spiral bevel gear generator that the crin Bel lattice company in the Gleason company of the U.S., Europe produces is through three rotating shafts and three linear axis interlocks; Realize extending the requirement that epicycloid equal-depth teeth bevel gear produces with continuous generation; But the digital control system of equipment is complicated; Therefore the fetch long price of lathe causes extending epicycloid equal-depth teeth bevel gear manufacturing cost and remains high.
The numerical control gear milling machine that China has an independent intellectual property rights has remedied the blank of state's internal bevel gear process equipment; Like disclosed a kind of numerical control spiral bevel gear milling machine among the Chinese patent open file CN2649242Y; This numerical control gear milling machine be the horizontal slide unit that moves along the X axle is installed on lathe bed, along the moving vertical slide unit of y-axis shift; Laterally through column the vertical vertical slide unit that moves is installed on the slide unit; Mounting cutter driving box on the vertical slide unit vertically is equipped with panoramic table on the slide unit, and the workpiece driving box is installed on the panoramic table.This numerical control gear milling machine adopts in the plane and replaces cage chair mechanism complicated on the external mill teeth machine along X axle and the moving horizontal slide unit of y-axis shift with vertical slide unit respectively; With horizontal slide unit, vertically slide unit and the panoramic table interlock that is installed on vertical slide unit replace tilt mechanism; The structure of mill teeth machine is greatly simplified, reduced the processing cost of bevel gear.But its workpiece driving box is installed in the front of column towards vertical slide unit in this numerical control gear milling machine; The reaction force acts that the cutting of milling cutter and tooth base produces in the work is on the workpiece driving box; Make between workpiece driving box and the vertical slide unit and vertical slide unit and corresponding vertical track between understand the shearing force of generation along X-direction; One side is the construction bolt of defective work piece driving box easily, causes the track deformation of vertical slide unit on the other hand easily, influences machining accuracy.And for extending epicycloid equal-depth teeth bevel gear; It adds the fixed drive ratio that requires to have between workpiece driving box and the cutter drives case strictness man-hour; And the driving mechanism of installing in the workpiece driving box in existing numerical control gear milling machine employing is by motor-driven turbine and worm driving mechanism; Like the disclosed a kind of numerical control spiral bevel gear milling machine work spindle transmission device of Chinese patent open file CN201102110Y; The structure of this driving mechanism is comparatively complicated, and its transmission accuracy is lower, can not satisfy and extend epicycloid bevel gear processing request.
The utility model content
The purpose of the utility model is: a kind of extension epicycloid bevel gear numerical control gear milling machine is provided, to solve the existing lower problem of numerical control gear milling machine workpiece driving box transmission accuracy.
The technical scheme of the utility model is: a kind of extension epicycloid bevel gear numerical control gear milling machine; Comprise and be installed in being used in horizontal plane on the base respectively along X, moving horizontal slide unit and the vertical slide unit of y-axis shift; Laterally slide unit is provided with column, and the vertical slide unit that moves up and down along the Z axle is installed on the column, on the vertical slide unit cutter drives case is installed; Vertically on the slide unit panoramic table that in horizontal plane, rotates is being installed; The workpiece driving box is installed on the panoramic table, and the workpiece driving box is equipped with work spindle and on the workpiece driving box, drive motors is installed, and is provided with reducing gear in the workpiece driving box; Described reducing gear is the one-level parallel-axes gears reducing gear with the crack function that disappears; Described drive motors is a servomotor, and the output shaft of this servomotor is connected with the power input shaft of reducing gear, and the power output shaft of reducing gear is connected with work spindle.
Described vertical slide unit is installed on the column on a side sidewall of X axle bearing of trend.
Be rotatably equipped with power transmission shaft and the cutter spindle that laterally arranges in the described cutter drives case, an end and the cutter servomotor of parallel axes are direct-connected, and the other end of parallel axes is in transmission connection through primary gear speed reducing mechanism and cutter spindle.
In the workpiece driving box of the extension epicycloid bevel gear numerical control gear milling machine of the utility model; The cutter servomotor drives the work spindle rotation through having the crack of disappearing function one-level parallel-axes gears reducing gear; Its rotation precision is compared with existing turbine and worm transmission mechanism and is greatly improved; In extending epicycloid bevel gear process; Form good fixed drive ratio between tooth base workpiece and the cutter, the machining accuracy of bevel gear mill teeth machine is improved greatly, satisfied the requirement of processing extension epicycloid bevel gear.
Description of drawings
Fig. 1 extends the structural representation of epicycloid bevel gear numerical control gear milling machine specific embodiment for the utility model.
The specific embodiment
The practical implementation of the extension epicycloid bevel gear numerical control gear milling machine of the utility model is Fig. 1, shown in Figure 2 for example; It is on the base 1 of lathe, to be equipped with in horizontal plane respectively along X axle, moving horizontal slide unit 2 and the vertical slide unit 10 of y-axis shift; Vertically the upper surface of slide unit 10 is equipped with the panoramic table 9 that in horizontal plane, rotates through arc guide barrel; This panoramic table 9 adopts numerical control rotating platform or mechanical turntable; Workpiece driving box 8 is installed on panoramic table 9, is rotatably equipped with the work spindle 7 that is used to install with the rotation of driving gear base workpiece in this workpiece driving box 8, workpiece servomotor 12 is installed on workpiece driving box 8; In workpiece driving box 8, be provided with reducing gear; This reducing gear is the one-level parallel-axes gears reducing gear with the crack function that disappears, and the power input shaft of this reducing gear is connected with workpiece servomotor 12, and the power output shaft of reducing gear is connected with work spindle 7.This vertical slide unit 10 adopts nc sliding table or hydraulic pressure moving platform; Can drive tooth base workpiece and in process, move forward and backward, control the displacement of vertical slide unit 10, can control the tooth depth of processed gear along the Y axle; Work spindle is in transmission connection through one-level parallel-axes gears reducing gear and the servomotor with the crack function that disappears; Its transmission accuracy is high, can and cutter between form fixing gearratio, numerical control gear milling machine is satisfied produces the requirement of extending the epicycloid bevel gear.
Laterally be installed with column 3 on the slide unit 2; Guide rail through the correspondence setting on column 3 is equipped with the vertical slide unit 4 that moves up and down along the Z axle; The reaction force that acts on the milling cutter when preventing milling cutter and tooth base workpiece cutting in the work damages guide rail and cutter drives case 5, and this vertical slide unit 4 is installed in and is positioned at it on the column 3 on a side sidewall of X axle bearing of trend.Adopt this mounting means; The guide rail that can avoid the construction bolt between cutter drives case 5 and the vertical slide unit 4 and cooperate with vertical slide unit 4 receives the effect of cross shear; The maintenance cost of the damage of minimizing equipment, reduction equipment, the service life of improving equipment.Laterally slide unit 2 all adopts nc sliding table with vertical slide unit 4, on this vertical slide unit 4, is installed with cutter drives case 5.Also be rotatably equipped with the cutter spindle 6 and corresponding power transmission shaft (not looking out among the figure) that are arranged in parallel in this cutter drives case 5; One end and the cutter servomotor of power transmission shaft are direct-connected, and the other end of power transmission shaft is connected by meshing transmission through primary gear speed reducing mechanism and cutter spindle 6.Through the milling cutter mounting disc mill teeth cutter is installed towards an end of workpiece driving box 8 at cutter spindle 6.
In the workpiece driving box of the extension epicycloid bevel gear numerical control gear milling machine of the utility model; The cutter servomotor drives the work spindle rotation through parallel axes with primary gear speed reducing mechanism; And in gear reduction, eliminate the back lash that gear is caused by mismachining tolerance and wearing and tearing through anti-backlash mechanism; Therefore, this transmission mechanism is compared transmission accuracy with existing turbine and worm transmission mechanism and is greatly improved, in the process; Form good fixed drive ratio between tooth base workpiece and the cutter, thereby can process qualified extension epicycloid bevel gear.
Claims (3)
1. one kind is extended epicycloid bevel gear numerical control gear milling machine; Comprise being installed in being used in horizontal plane respectively along moving horizontal slide unit of X, y-axis shift and vertical slide unit on the base, laterally slide unit is provided with column, and the vertical slide unit that moves up and down along the Z axle is installed on the column; On the vertical slide unit cutter drives case is installed; Vertically on the slide unit panoramic table that in horizontal plane, rotates being installed, the workpiece driving box is installed on the panoramic table, the workpiece driving box is equipped with work spindle and on the workpiece driving box, drive motors is installed; Be provided with reducing gear in the workpiece driving box; It is characterized in that described reducing gear is the one-level parallel-axes gears reducing gear with the crack function that disappears, described drive motors is a servomotor; The output shaft of this servomotor is connected with the power input shaft of reducing gear, and the power output shaft of reducing gear is connected with work spindle.
2. extension epicycloid bevel gear numerical control gear milling machine according to claim 1 is characterized in that, described vertical slide unit is installed on the column on a side sidewall of X axle bearing of trend.
3. extension epicycloid bevel gear numerical control gear milling machine according to claim 2; It is characterized in that; Be rotatably equipped with power transmission shaft and the cutter spindle that laterally arranges in the described cutter drives case; One end and the cutter servomotor of parallel axes are direct-connected, and the other end of parallel axes is in transmission connection through primary gear speed reducing mechanism and cutter spindle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204776865U CN202344050U (en) | 2011-11-26 | 2011-11-26 | Numerical control gear milling machine for extension epicycloid bevel gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204776865U CN202344050U (en) | 2011-11-26 | 2011-11-26 | Numerical control gear milling machine for extension epicycloid bevel gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202344050U true CN202344050U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204776865U Expired - Lifetime CN202344050U (en) | 2011-11-26 | 2011-11-26 | Numerical control gear milling machine for extension epicycloid bevel gear |
Country Status (1)
| Country | Link |
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| CN (1) | CN202344050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114074203A (en) * | 2020-08-14 | 2022-02-22 | 湖南中大创远数控装备有限公司 | Gear grinding machine |
-
2011
- 2011-11-26 CN CN2011204776865U patent/CN202344050U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114074203A (en) * | 2020-08-14 | 2022-02-22 | 湖南中大创远数控装备有限公司 | Gear grinding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |