CN101941155A - Double-worm precision numerically controlled rotary table - Google Patents
Double-worm precision numerically controlled rotary table Download PDFInfo
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- CN101941155A CN101941155A CN 201010278692 CN201010278692A CN101941155A CN 101941155 A CN101941155 A CN 101941155A CN 201010278692 CN201010278692 CN 201010278692 CN 201010278692 A CN201010278692 A CN 201010278692A CN 101941155 A CN101941155 A CN 101941155A
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- worm
- rotary table
- bevel gear
- auxiliary
- worm screw
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Abstract
The invention relates to a double-worm precision numerically controlled rotary table and belongs to the technical field of a machine tool accessory structure. The rotary table comprises a servo motor which is connected with a main worm in a driving way by a coupler, the main worm is connected with a worm gear in a transmission way, the main worm is sequentially connected with a bevel gear I and a bevel gear II in a transmission way, the bevel gear II is connected with an auxiliary worm in a transmission way by a spline which is arranged in the bevel gear II, the outside of the top end of the auxiliary worm is sleeved and connected with a piston, and the left side and the right side of the piston are respectively provided with a left cavity and a right cavity which are respectively communicated with a left side transport port and a right side both arranged on a base. The rotary table has simple structure and a short transmission chain, the direction of an auxiliary force can be adjusted at any time according to the direction of a processing force, and the size of the auxiliary force can also be adjusted at any time, thus reducing unnecessary wear.
Description
Technical field
The present invention relates to twin worm accurate digital control rotary table, belong to the machine tool accessories technical field of structures.
Background technology
At present, existing NC rotary table worm screw is two helical pitch worm screws, shown in accompanying drawing 1 and accompanying drawing 2, the course of work: turntable is by servomotor 1, drive main worm screw 3 by gear I 14, gear II 15, drive worm gear 4 rotations, this structure is adjusted the worm gear gap in any case, unavoidably will reserve certain interval, runs well to guarantee worm gear, in dynamic process, change with cutting force size and direction, shake and kinematic error occur, under static state during processing parts, need hydraulic pressure or pneumatic stopping tightly, the error of division unavoidably appears in gapped keeping away.
Summary of the invention
The objective of the invention is to overcome the deficiency that existing rotary table exists, provide a kind of and can eliminate the gap, structure is simple and direct, driving-chain is short, the direction of auxiliary force can be adjusted at any time according to the direction of operating force, auxiliary strength size also can be adjusted at any time, reduces the twin worm accurate digital control rotary table of unnecessary wearing and tearing.
The present invention is achieved through the following technical solutions:
Twin worm accurate digital control rotary table, comprise servomotor 1, servomotor 1 drives by shaft coupling 2 and is connected with main worm screw 3, main worm screw 3 is connected with worm gear 4, its special character is that main worm screw 3 tops are connected with bevel gear I 5 successively, bevel gear II 6, bevel gear II 6 is connected with auxiliary worm screw 7 by spline set in it, the tip exterior of auxiliary worm screw 7 is socketed with piston 8, the left and right sides of piston 8 is respectively equipped with left cavity 12, right cavity 13, left cavity 12, right cavity 13 respectively with the left side delivery port of being located on the base 11 10, right side delivery port 9 is connected;
Described left cavity 12, right cavity 13 inside are connected with air or hydraulic oil.
Reasonable in design of the present invention, by in left side delivery port or right side delivery port, carrying air or hydraulic oil, force piston to move to the left or to the right, thereby eliminated the gap between the auxiliary worm and wheel, driving-chain is shortened, not only significantly reduce unnecessary wearing and tearing, and effectively raised operating efficiency.
Description of drawings
Fig. 1: the structural representation of existing NC rotary table;
Fig. 2: the structural representation that existing worm gear is mutually meshing with main worm screw;
Fig. 3: the structural representation of twin worm accurate digital control rotary table of the present invention;
Fig. 4: master worm screw, the auxiliary mutually meshing structural representation of worm and wheel when delivery port bubbling air or hydraulic oil to the right;
Fig. 5: master worm screw, the auxiliary mutually meshing structural representation of worm and wheel when delivery port bubbling air or hydraulic oil to the left.
Among the figure: 1, servomotor, 2, shaft coupling, 3, main worm screw, 4, worm gear, 5, bevel gear I, 6, bevel gear II, 7, auxiliary worm screw, 8, piston, 9, the right side delivery port, 10, the left side delivery port, 11, base, 12, left cavity, 13, right cavity, 14, gear I, 15, gear II.
The specific embodiment
Provide the specific embodiment of the present invention below with reference to accompanying drawing, be used for formation of the present invention is described further.
The twin worm accurate digital control rotary table of present embodiment, comprise servomotor 1, servomotor 1 drives by shaft coupling 2 and is connected with main worm screw 3, main worm screw 3 is connected with worm gear 4, drive worm gear 4 rotations, main worm screw 3 tops are connected with bevel gear I 5 successively, bevel gear II 6, bevel gear II 6 is connected with auxiliary worm screw 7 by spline set in it, the tip exterior of auxiliary worm screw 7 is socketed with piston 8, the left and right sides of piston 8 is respectively equipped with left cavity 12, right cavity 13, left side cavity 12, right cavity 13 respectively with the left side delivery port of being located on the base 11 10, right side delivery port 9 is connected, left cavity 12, right cavity 13 inside are connected with air or hydraulic oil.
Operation principle: servomotor 1 directly drives main worm screw 3 by shaft coupling 2, main worm screw 3 drives worm gear 4 rotations, main worm screw 3 drives bevel gear II 6 rotations by bevel gear I 5 again, spline in the bevel gear II6 is given auxiliary worm screw 7 with transmission of power, by in left side delivery port 10 or right side delivery port 9, carrying air or hydraulic oil, force piston 8 to move to the left or to the right, thereby eliminated the gap between auxiliary worm screw 7 and the worm gear 4, also eliminated backlass, and, adjust left side delivery port 10 or 9 air inlets of right side delivery port or oil-feed according to the workbench direction of rotation.
The twin worm accurate digital control rotary table of present embodiment, structure is simple and direct, driving-chain is short, the direction of auxiliary force can be adjusted at any time according to the direction of operating force, and auxiliary strength size also can be adjusted at any time, reduces unnecessary wearing and tearing.
Claims (2)
1. twin worm accurate digital control rotary table, comprise servomotor (1), servomotor (1) drives by shaft coupling (2) and is connected with main worm screw (3), main worm screw (3) is connected with worm gear (4), it is characterized in that main worm screw (3) top is connected with bevel gear I (5) successively, bevel gear II (6), bevel gear II (6) is connected with auxiliary worm screw (7) by spline set in it, the tip exterior of auxiliary worm screw (7) is socketed with piston (8), the left and right sides of piston (8) is respectively equipped with left cavity (12), right cavity (13), left cavity (12), right cavity (13) respectively with the left side delivery port of being located on the base (11) (10), right side delivery port (9) is connected.
2. according to the described twin worm accurate digital control of claim 1 rotary table, it is characterized in that described left cavity (12), right cavity (13) inside are connected with air or hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010278692 CN101941155A (en) | 2010-09-06 | 2010-09-06 | Double-worm precision numerically controlled rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010278692 CN101941155A (en) | 2010-09-06 | 2010-09-06 | Double-worm precision numerically controlled rotary table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101941155A true CN101941155A (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010278692 Pending CN101941155A (en) | 2010-09-06 | 2010-09-06 | Double-worm precision numerically controlled rotary table |
Country Status (1)
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| CN (1) | CN101941155A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728905A (en) * | 2012-03-19 | 2012-10-17 | 浙江嘉力宝精机股份有限公司 | Automatic backlash driving and indexing worktable for gear grinding machine |
| CN102950473A (en) * | 2012-11-07 | 2013-03-06 | 南京工大数控科技有限公司 | Numerical control rotary table compositely driven by worm gear pair and gear pair and control method of numerical control rotary table |
| CN102974900A (en) * | 2012-12-28 | 2013-03-20 | 重庆机床(集团)有限责任公司 | Rotational motion clearance eliminating mechanism for working table of gear hobbing machine |
| CN106392681A (en) * | 2016-11-04 | 2017-02-15 | 大连平安恒润机床制造有限公司 | Dual-lead and dual-index worm hobbing machine workbench |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2175060Y (en) * | 1993-07-03 | 1994-08-24 | 于俊贤 | Worm adjusting-clearance speed reducer |
| CN101391377A (en) * | 2008-10-30 | 2009-03-25 | 上海大学 | Dual drive numerical control rotary table transmission mechanism |
| CN101705987A (en) * | 2009-11-16 | 2010-05-12 | 重庆大学 | Worm gear-worm pair backlash eliminating device adopting enveloping worm |
| CN201544039U (en) * | 2009-11-05 | 2010-08-11 | 齐重数控装备股份有限公司 | Numerical-control double-worm anti-backlash hydrostatic rotating worktable with high precision |
| CN201807901U (en) * | 2010-09-06 | 2011-04-27 | 徐国胜 | Double-worm precision numerical-controlled rotary operating platform |
-
2010
- 2010-09-06 CN CN 201010278692 patent/CN101941155A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2175060Y (en) * | 1993-07-03 | 1994-08-24 | 于俊贤 | Worm adjusting-clearance speed reducer |
| CN101391377A (en) * | 2008-10-30 | 2009-03-25 | 上海大学 | Dual drive numerical control rotary table transmission mechanism |
| CN201544039U (en) * | 2009-11-05 | 2010-08-11 | 齐重数控装备股份有限公司 | Numerical-control double-worm anti-backlash hydrostatic rotating worktable with high precision |
| CN101705987A (en) * | 2009-11-16 | 2010-05-12 | 重庆大学 | Worm gear-worm pair backlash eliminating device adopting enveloping worm |
| CN201807901U (en) * | 2010-09-06 | 2011-04-27 | 徐国胜 | Double-worm precision numerical-controlled rotary operating platform |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728905A (en) * | 2012-03-19 | 2012-10-17 | 浙江嘉力宝精机股份有限公司 | Automatic backlash driving and indexing worktable for gear grinding machine |
| CN102950473A (en) * | 2012-11-07 | 2013-03-06 | 南京工大数控科技有限公司 | Numerical control rotary table compositely driven by worm gear pair and gear pair and control method of numerical control rotary table |
| CN102950473B (en) * | 2012-11-07 | 2015-11-04 | 南京工大数控科技有限公司 | The NC rotary table of worm gear and gear pair composite flooding and control method thereof |
| CN102974900A (en) * | 2012-12-28 | 2013-03-20 | 重庆机床(集团)有限责任公司 | Rotational motion clearance eliminating mechanism for working table of gear hobbing machine |
| CN106392681A (en) * | 2016-11-04 | 2017-02-15 | 大连平安恒润机床制造有限公司 | Dual-lead and dual-index worm hobbing machine workbench |
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Application publication date: 20110112 |