CN204449914U - A kind of large main arbor direct-drive type rotary table structure - Google Patents
A kind of large main arbor direct-drive type rotary table structure Download PDFInfo
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- CN204449914U CN204449914U CN201520059996.3U CN201520059996U CN204449914U CN 204449914 U CN204449914 U CN 204449914U CN 201520059996 U CN201520059996 U CN 201520059996U CN 204449914 U CN204449914 U CN 204449914U
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- ring flange
- connector
- main shaft
- torque motor
- base
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- 230000005540 biological transmission Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000006073 displacement reactions Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Abstract
Description
Technical field
The utility model relates to a kind of machine tool rotary working table structure, particularly relates to a kind of large main arbor direct-drive type rotary table structure, belongs to heavy duty machine tools technical field of processing equipment.
Background technology
Along with manufacturing development, Digit Control Machine Tool is towards high speed, high precision int, flexibility, high reliability development.Rotary table is as the main function components of Digit Control Machine Tool, and its function and parameter directly have influence on working ability and the precision of lathe.Current rotary table all adopts mechanical transmission, the processing and manufacturing of spindle box body and main spindle box internal gear all has strict demand, therefore its processing technology is comparatively complicated, and due to the existence of mechanical drive train, make turntable complete startup, acceleration, reversion and disengaging movement time, the distortion of easy generation frame for movement, friction and backlass is there is between transmission, rotary table is caused to there is mechanical oscillation and noise in the course of the work, and then have influence on the dynamic rate of rotary table, the high-precision requirement in the rotary table course of work cannot be met.
Summary of the invention
In order to solve the problem, the purpose of this utility model is to provide a kind of large main arbor direct-drive type rotary table structure, this structure eliminates traditional mechanical type gear drive, torque motor is adopted directly to drive rotary table to rotate, the stator of torque motor and rotor put together on table base and workbench respectively, encoder is relied on to complete the closed loop servo feed system of rotary table, i.e. the calibration location of rotary table.The continuous division of angle can be realized fast and there is the features such as transmission efficiency is high, noise is little, compact conformation, precision are high, reliability is high, easy to maintenance.
The utility model solves the technical scheme that its technical problem adopts: a kind of large main arbor direct-drive type rotary table structure, is made up of workbench, table base, torque motor stator, torque motor rotor, connector, thrust ball bearing A, thrust ball bearing B, Biserial cylindrical roller bearing, desktop, ring flange A, encoder, ring flange B, ring flange C, briquetting, main shaft.Torque motor stator puts together on table base, and torque motor rotor puts together on connector, and connector and workbench are closing.Connector is seated on table base by thrust ball bearing A, and connector endoporus and Biserial cylindrical roller bearing outer shroud are connected, and Biserial cylindrical roller bearing is arranged on main shaft, and main shaft is connected with table base centre bore also closing.The briquetting put together on main shaft is connected with connector by thrust ball bearing B.The stator of encoder is fixed on ring flange C, and ring flange C is fixed on main shaft, and the rotor of encoder is fixing on the table by ring flange A, ring flange B.Workbench centre bore is connected with desktop, and desktop puts together on ring flange B.
Structure design principle: cancel traditional mechanical type gear drive, torque motor is adopted directly to drive rotary table to rotate, the stator of torque motor and rotor put together on table base and workbench respectively, rely on encoder to complete the closed loop servo feed system of rotary table, the continuous division of angle can be realized fast and there is the features such as transmission efficiency is high, noise is little, compact conformation, precision are high, reliability is high, easy to maintenance.
The beneficial effects of the utility model are: main shaft direct-drive type rotary table structure eliminates traditional mechanical type gear drive, directly drive rotary table to rotate with torque motor, make its continuous division that can realize angle fast and there is the features such as transmission efficiency is high, noise is little, compact conformation, precision are high, reliability is high, easy to maintenance.The present invention can meet today's numerical control lathe towards high speed, high precision int, flexibility, high reliability future development trend.The automatization level of the advanced lathe of China can be increased substantially, drive the development of whole machine-tool industry.The utility model is the outstanding youth fund project in Heilongjiang Province, and contract number is: JC201318.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
Fig. 1 is the structural representation of a kind of large main arbor direct-drive type of the present invention rotary table structure.
Reference numeral
1, workbench 2, table base 3, torque motor stator 4, torque motor rotor
5, connector 6, thrust ball bearing A 7, thrust ball bearing B 8, Biserial cylindrical roller bearing
9, desktop 10, ring flange A 11, encoder 12, ring flange B
13, ring flange C 14, briquetting 15, main shaft.
Detailed description of the invention
Refer to Fig. 1, a kind of large main arbor direct-drive type rotary table structure, is made up of workbench, table base, torque motor stator, torque motor rotor, connector, thrust ball bearing A, thrust ball bearing B, Biserial cylindrical roller bearing, desktop, ring flange A, encoder, ring flange B, ring flange C, briquetting, main shaft.Torque motor stator 3 puts together on table base 2, and torque motor rotor 4 puts together on connector 5, and connector 5 and workbench 1 are closing, and torque motor directly drives rotary table 1 to rotate.Connector 5 is seated on table base 2 by thrust ball bearing A 6, connector 5 endoporus and Biserial cylindrical roller bearing 8 outer shroud are connected, Biserial cylindrical roller bearing 8 is arranged on main shaft 15, main shaft 15 is connected with table base 2 centre bore and closing, connector 5 is realized and table base 2 radial location by Biserial cylindrical roller bearing 8, main shaft 15.The briquetting 14 put together on main shaft 15 is connected with connector 5 by thrust ball bearing B 7, briquetting 14 can provide downforce for thrust ball bearing B 7, pressure acts on thrust ball bearing A 6 by connector 5, realize the pretension of thrust ball bearing A 6 with this, namely realize the axial location of connector 5 and table base 2.The stator of encoder 11 is fixed on ring flange C 13, ring flange C 13 is fixed on main shaft 15, the rotor of encoder 11 is fixed on workbench 1 by ring flange A 10, ring flange B 12, workbench 1 is when table base 2 rotates, encoder 11 can convert angular displacement to the signal of telecommunication and feed back to torque motor, completes the closed loop servo feed system of rotary table.Workbench 1 centre bore is connected with desktop 9, and desktop 9 puts together on ring flange B 12.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520059996.3U CN204449914U (en) | 2015-01-29 | 2015-01-29 | A kind of large main arbor direct-drive type rotary table structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520059996.3U CN204449914U (en) | 2015-01-29 | 2015-01-29 | A kind of large main arbor direct-drive type rotary table structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204449914U true CN204449914U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520059996.3U CN204449914U (en) | 2015-01-29 | 2015-01-29 | A kind of large main arbor direct-drive type rotary table structure |
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| CN (1) | CN204449914U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690562A (en) * | 2015-01-29 | 2015-06-10 | 齐重数控装备股份有限公司 | Large-sized main shaft direct-drive type rotary worktable structure |
| CN106002313A (en) * | 2016-07-07 | 2016-10-12 | 宝鸡忠诚机床股份有限公司 | Single-arm type milling and turning composite double-rotation workbench |
| CN106552967A (en) * | 2016-11-25 | 2017-04-05 | 秦川机床工具集团股份公司 | Large-scale high-precision numerical control fluted disc grinding machine |
| CN107127642A (en) * | 2017-05-05 | 2017-09-05 | 大连机床(数控)股份有限公司 | High speed high pulling torque direct drive turning workbench |
-
2015
- 2015-01-29 CN CN201520059996.3U patent/CN204449914U/en active IP Right Grant
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104690562A (en) * | 2015-01-29 | 2015-06-10 | 齐重数控装备股份有限公司 | Large-sized main shaft direct-drive type rotary worktable structure |
| CN106002313A (en) * | 2016-07-07 | 2016-10-12 | 宝鸡忠诚机床股份有限公司 | Single-arm type milling and turning composite double-rotation workbench |
| CN106552967A (en) * | 2016-11-25 | 2017-04-05 | 秦川机床工具集团股份公司 | Large-scale high-precision numerical control fluted disc grinding machine |
| CN106552967B (en) * | 2016-11-25 | 2019-08-20 | 秦川机床工具集团股份公司 | Large-scale high-precision numerical control fluted disc grinding machine |
| CN107127642A (en) * | 2017-05-05 | 2017-09-05 | 大连机床(数控)股份有限公司 | High speed high pulling torque direct drive turning workbench |
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