CN102062186A - Coarse adjustment and fine adjustment linear moving mechanism - Google Patents
Coarse adjustment and fine adjustment linear moving mechanism Download PDFInfo
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- CN102062186A CN102062186A CN2009102119264A CN200910211926A CN102062186A CN 102062186 A CN102062186 A CN 102062186A CN 2009102119264 A CN2009102119264 A CN 2009102119264A CN 200910211926 A CN200910211926 A CN 200910211926A CN 102062186 A CN102062186 A CN 102062186A
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- coarse adjustment
- screw
- moving mechanism
- linear moving
- tooth bar
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Abstract
The invention relates to a coarse adjustment and fine adjustment linear moving mechanism which comprises a fixed seat, a movable seat, a coarse adjustment screw bar and a fine adjustment toothed bar, wherein the fixed seat is provided with a first screw hole; the movable seat is movably arranged on the fixed seat and provided with a second screw hole; the coarse adjustment screw bar is provided with a threaded section and a smooth section; the threaded section is screwed with the first screw hole; and the fine adjustment toothed bar is rotatably sleeved on the smooth section of the coarse adjustment screw bar and screwed in the second screw hole. Therefore, a user can respectively rotate the coarse adjustment screw bar and the fine adjustment toothed bar to enable the movable seat to quickly move or finely move, and because the two movements are respectively driven by the coarse adjustment screw bar and the fine adjustment toothed bar with different thread pitches, the fast-moving speed and the fine-moving accuracy can be compromised.
Description
Technical field
The present invention is relevant with linear moving mechanism, is meant a kind of manual adjustment position of platform that is available for users to especially, and can take into account the linear moving mechanism of travelling speed and validity.
Background technique
Manually linear moving mechanism has been widely used on microscope, measurement platform and the toolroom machine.Known linear moving mechanism with thick fine adjustment function, as the U.S. the 4th, 919, No. 001 patent discloses, it includes a pedestal (base block), a mobile platform (stage) and a screw rod (feed screw shaft), this screw rod is located at pedestal in rotating mode, and with the engagement of the platform support (stage supporting member) of mobile platform bottom side.When needs fast moving platform, the user can be with a coarse adjustment handle (coarse adjustment handle) rotary screw, making its drive platform carry out straight line moves, when needs make platform trickle when mobile, the user then need rotate a vernier knob (fine adjustment knob), drive the screw rod rotation again after making it reduce rotating speed, thereby reach trickle mobile purpose through a plurality of speed change gears.
This linear moving mechanism coarse adjustment or the fine setting all be to drive by same screw rod, if the pitch of screw rod is too small, travelling speed when platform carries out coarse adjustment can be quite slow, so the user need rotate the considerable number of turns and platform could be moved to the desired position, if and the pitch of screw rod is excessive, the back clearance of screw rod outside thread and platform support internal thread (backlash) also can relatively enlarge, cause the rotation of vernier knob can't be reflected to fully on the moving of platform support, thereby reduce trickle mobile validity.
Summary of the invention
At the problems referred to above, main purpose of the present invention is to provide a kind of linear moving mechanism that can slightly finely tune, and its coarse adjustment and fine setting are to utilize the screw rod of different pitch to drive, and can take into account mobile speed and validity.
For achieving the above object, a kind of linear moving mechanism that can slightly finely tune provided by the present invention is characterized in that comprising: a fixed base has one first screw; One moves seat, and it is located at described fixed base movably, and has one second screw; One coarse adjustment screw rod has a thread section and a smooth section, and described thread section is screwed together in described first screw; One fine setting tooth bar, it is nested with the smooth section at described coarse adjustment screw rod rotationally, and described fine setting tooth bar also is screwed in described second screw.
In the technological scheme of the invention described above, also include two bearings, be arranged between described coarse adjustment screw rod and the described fine setting tooth bar.
It is ccontaining for the smooth section and the two described bearings of described coarse adjustment screw rod that described fine setting tooth bar has an axis hole, described coarse adjustment tooth bar also includes the end that a coarse adjustment knob is located at described smooth section, described coarse adjustment knob has a ring rib and is inserted in the axis hole of described fine setting tooth bar, and with a described bearing butt wherein.
Also include a supporting member and a spring, described supporting member and described coarse adjustment screw engages, described spring housing place described coarse adjustment screw rod and be resisted against described supporting member and described fixed base between.
Described fixed base has a circular groove and a ring rib, described circular groove is formed at around described first screw, described ring rib is formed between described first screw and the described circular groove, and described ring rib has at least one breach, and described supporting member has at least one projection and is inserted in described breach.
Described mobile seat has a main body and a connection piece, described second screw is formed on the described link, described link also includes a profile groove, two free ends and a packing bolt, described profile groove extends to the described link outside by described second screw, described two free ends are formed at described profile groove both sides, and described packing bolt passes wherein a free end and screw lock in another free-ended screw.
Described coarse adjustment screw flight is a two-start screw.
The screw thread of described fine setting tooth bar is a single start thread.
Adopt technique scheme, the present invention is owing to the coarse adjustment and the fine setting of linear moving mechanism drive by coarse adjustment screw rod and fine setting tooth bar respectively, therefore, the artificer can be by enlarging the pitch of coarse adjustment screw rod, or the coarse adjustment screw flight is designed to two-start screw (multiple-start thread), make that moving seat moves more quickly, in addition, the artificer also can be designed to single start thread (single-start thread) with fine setting tooth bar simultaneously, and it is littler of the reduction tolerance to make that its pitch can processedly get, and then improves trickle mobile validity.Thus, the user can rotate coarse adjustment screw rod and the fine setting tooth bar with different pitch respectively, makes mobile seat carry out fast moving or trickle moving, and can take into account the speed and the trickle mobile validity of fast moving.
Description of drawings
Fig. 1 is the stereogram of the present invention's first preferred embodiment;
Fig. 2 is the three-dimensional exploded view of the present invention's first preferred embodiment;
Fig. 3 is the sectional view of the present invention's first preferred embodiment;
Fig. 4 is the partial enlarged drawing of Fig. 3;
Fig. 5 is similar to Fig. 3, shows the state after the present invention carries out fast moving;
Fig. 6 is similar to Fig. 4, shows the state after the present invention carries out trickle moving;
Fig. 7 is the partial sectional view of the present invention's second preferred embodiment.
Embodiment
Now lifting following examples also is elaborated to structure of the present invention and effect in conjunction with the accompanying drawings.
As Fig. 1～shown in Figure 3, be the linear moving mechanism that can slightly finely tune 10 that a preferred embodiment of the present invention provided, it includes a fixed base 20, and moves seat 30, one a coarse adjustment screw rod 40, a fine setting tooth bar 50, a supporting member 60 and a spring 70.
Fixed base 20 has a main body 22 and a connection piece 24, link 24 is fixed on the main body 22 by two locking bolts 241, and have one first screw 243, a circular groove 245 and a ring rib 247, first screw, 243 through-connections 24, circular groove 245 is formed at around first screw 243, ring rib 247 is formed between first screw 243 and the circular groove 245, and has two breach 249.
Move seat 30 and have a main body 32 and a connection piece 34, but the mode that main body 32 moves with straight line is located at fixed base 20, link 34 is fixed on the main body 32 by two locking bolts 341, link 34 has one second screw 343, one profile groove 344, two free ends 345,346 and one packing bolt 347, second screw, 343 through-connections 34, profile groove 344 extends to link 34 outsides by second screw 343, two free ends 345,346 are formed at profile groove 344 both sides respectively, and packing bolt 347 passes wherein a free end 346 and screw lock in the screw 348 of another free end 345.
Coarse adjustment screw rod 40 has a thread section 42, a smooth section 44 and a coarse adjustment knob 46, thread section 42 is screwed together in first screw 243 of fixed base 20, smooth section 44 is connected in one piece with thread section 42, and coarse adjustment knob 46 is fixed in an end of smooth section 44 by a locking bolt 461.
Fine setting tooth bar 50 has an axis hole 52, and with rotatable but can not axially movable mode be placed on the smooth section 44 of coarse adjustment screw rod 40, fine setting tooth bar 50 forms a thread section 54 and a vernier knob 56, thread section 54 is screwed together in second screw 343 that moves seat 30, wherein, the pitch of fine setting tooth bar 50 thread sections 54 is less than the pitch of coarse adjustment screw rod 40 thread sections 42.Again as shown in Figure 4, be provided with two bearings 58 between coarse adjustment screw rod 40 and the fine setting tooth bar 50, can make between the two relatively rotate more smooth and easyly, two bearings 58 are fixed on axis hole 52 inboards of fine setting tooth bar 50 by two C shape clasps 59.
Supporting member 60 and 40 engagements of coarse adjustment screw rod, and have two projections 62 and be inserted in the breach 249 of ring rib 247 of fixed base 20.
Via said structure, when the needs fast moving moves seat 30 the time, as Fig. 3 and shown in Figure 5, the user needs to rotate coarse adjustment screw rod 40 by coarse adjustment knob 46, by the meshing relation of coarse adjustment screw rod 40 with fixed base 20 links 24, coarse adjustment screw rod 40 can carry out axial motion with respect to fixed base 20, and at this moment, 30 of fine setting tooth bar 50 and mobile seats are promoted to reach mobile purpose by coarse adjustment screw rod 40 in the lump.And when needs fine move to move seat 30, as Fig. 4 and shown in Figure 6, the user only needs to make the 50 original places rotation of fine setting tooth bar with vernier knob 56, by fine setting tooth bar 50 and the meshing relation that moves seat 30 links 34, and the transfixion of coarse adjustment screw rod 40, move seat 30 and also can reach mobile purpose.
Because the coarse adjustment of linear moving mechanism 10 and fine setting drive by coarse adjustment screw rod 40 and fine setting tooth bar 50 respectively, therefore, the artificer can be by enlarging the pitch of coarse adjustment screw rod 40, or be two-start screw (multiple-start thread) with the screw thread design of coarse adjustment screw rod 40, make that moving seat 30 moves more quickly, in addition, the artificer also can be designed to single start thread (single-start thread) with fine setting tooth bar 50 simultaneously, and it is littler of the reduction tolerance to make that its pitch can processedly get, and then improves trickle mobile validity.
Fig. 3 for another example, supporting member 60 and spring 70 can produce an axial active force between coarse adjustment screw rod 40 and fixed base 20 links 24, so that eliminate the outside thread of coarse adjustment screw rod 40 and the radially back clearance (backlash) between link 24 internal threads, make the rotation of coarse adjustment screw rod 40 can be reflected to fully on the moving of mobile seat 30.In addition, when linear moving mechanism 10 is used for a long time and is caused thread abrasion, the user also can make two free ends 345,346 approaching relatively by the packing bolt 347 that moves seat 30, to reduce to finely tune the outside thread of tooth bar 50 and the radial clearance between link 34 internal threads.
Based on spirit of the present invention, the linear moving mechanism that can slightly finely tune structurally also can freely change, again as shown in Figure 7, the linear moving mechanism that can slightly finely tune 80 that is provided for the present invention's second preferred embodiment, have the fixed base identical 81 with previous embodiment, move seat 82, supporting member (not shown) and spring (not shown), its difference only is, the vernier knob 844 of fine setting tooth bar 84 is moderately strengthened dimensionally, to make things convenient for the user to dial commentaries on classics, in addition, the coarse adjustment knob 832 of coarse adjustment screw rod 83 also includes a ring rib 834, and ring rib 834 is plugged in the axis hole 842 of fine setting tooth bar 84, and with bearing 846 butts.
The above; only be the detailed description and the diagram of preferred embodiment of the present invention; all embodiments who meets creation spirit of the present invention variation similar with it; be included in the patent protection category of the present invention; anyly be familiar with this skill person in the field of the invention, can think easily and variation or modify all can be encompassed in the scope of patent protection of the present invention.
Claims (8)
1. the linear moving mechanism that can slightly finely tune is characterized in that comprising:
One fixed base has one first screw;
One moves seat, and it is located at described fixed base movably, and has one second screw;
One coarse adjustment screw rod has a thread section and a smooth section, and described thread section is screwed together in described first screw;
One fine setting tooth bar, it is nested with the smooth section at described coarse adjustment screw rod rotationally, and described fine setting tooth bar also is screwed in described second screw.
2. the linear moving mechanism that can slightly finely tune as claimed in claim 1 is characterized in that: also include two bearings, be arranged between described coarse adjustment screw rod and the described fine setting tooth bar.
3. the linear moving mechanism that can slightly finely tune as claimed in claim 2, it is characterized in that: it is ccontaining for the smooth section and the two described bearings of described coarse adjustment screw rod that described fine setting tooth bar has an axis hole, described coarse adjustment tooth bar also includes the end that a coarse adjustment knob is located at described smooth section, described coarse adjustment knob has a ring rib and is inserted in the axis hole of described fine setting tooth bar, and with a described bearing butt wherein.
4. the linear moving mechanism that can slightly finely tune as claimed in claim 1, it is characterized in that: also include a supporting member and a spring, described supporting member and described coarse adjustment screw engages, described spring housing place described coarse adjustment screw rod and be resisted against described supporting member and described fixed base between.
5. the linear moving mechanism that can slightly finely tune as claimed in claim 4, it is characterized in that: described fixed base has a circular groove and a ring rib, described circular groove is formed at around described first screw, described ring rib is formed between described first screw and the described circular groove, described ring rib has at least one breach, and described supporting member has at least one projection and is inserted in described breach.
6. the linear moving mechanism that can slightly finely tune as claimed in claim 1, it is characterized in that: described mobile seat has a main body and a connection piece, described second screw is formed on the described link, described link also includes a profile groove, two free ends and a packing bolt, described profile groove extends to the described link outside by described second screw, described two free ends are formed at described profile groove both sides, and described packing bolt passes wherein a free end and screw lock in another free-ended screw.
7. the linear moving mechanism that can slightly finely tune as claimed in claim 1 is characterized in that: described coarse adjustment screw flight is a two-start screw.
8. the linear moving mechanism that can slightly finely tune as claimed in claim 1 is characterized in that: the screw thread of described fine setting tooth bar is a single start thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102119264A CN102062186A (en) | 2009-11-16 | 2009-11-16 | Coarse adjustment and fine adjustment linear moving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102119264A CN102062186A (en) | 2009-11-16 | 2009-11-16 | Coarse adjustment and fine adjustment linear moving mechanism |
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| CN102062186A true CN102062186A (en) | 2011-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102119264A Pending CN102062186A (en) | 2009-11-16 | 2009-11-16 | Coarse adjustment and fine adjustment linear moving mechanism |
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| CN (1) | CN102062186A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109203659A (en) * | 2017-08-01 | 2019-01-15 | 于正华 | A kind of textile printing and dyeing roller printing machine |
| CN110076611A (en) * | 2019-04-12 | 2019-08-02 | 东莞市中科冠腾科技股份有限公司 | Based on synchronous and guide rail slide block automatic control gearshift |
| CN110556967A (en) * | 2018-05-31 | 2019-12-10 | 日本电产三协株式会社 | Linear drive device |
| CN110978746A (en) * | 2019-12-23 | 2020-04-10 | 兰州石化职业技术学院 | Printing pressure adjusting mechanism of flexographic printing machine |
| CN112570885A (en) * | 2020-11-27 | 2021-03-30 | 沧州领创激光科技有限公司 | High-speed large-span beam transmission control mechanism and laser cutting machine |
| CN112743424A (en) * | 2021-01-12 | 2021-05-04 | 张书荣 | New energy automobile produces device with fine setting function |
Citations (7)
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| DE2809188A1 (en) * | 1978-03-03 | 1979-09-06 | Messerschmitt Boelkow Blohm | Coarse and fine adjustment mechanism - has component between springs of different characteristics and adjustably loaded |
| US4373404A (en) * | 1980-06-30 | 1983-02-15 | Rockwell International Corporation | Differential screw actuator |
| GB2209294A (en) * | 1987-09-01 | 1989-05-10 | Yang Tai Her | Clamping device with screw-threaded adjustment |
| US4919001A (en) * | 1987-10-09 | 1990-04-24 | Olympus Optical Co., Ltd. | Coarse/fine adjustment coaxial handle for feeding microscope stage |
| CN1049413A (en) * | 1989-08-11 | 1991-02-20 | 郭卫国 | Finely and widely adjusting means of microscope |
| CN2863353Y (en) * | 2005-07-16 | 2007-01-31 | 嘉兴永佳精密机械制造有限公司 | Boring tool fast adjustment and fine adjustment mechanism for precision boring machine |
| CN2871071Y (en) * | 2006-03-28 | 2007-02-21 | 嘉兴永佳精密机械制造有限公司 | Boring cutter-rod microadjuster |
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2009
- 2009-11-16 CN CN2009102119264A patent/CN102062186A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2809188A1 (en) * | 1978-03-03 | 1979-09-06 | Messerschmitt Boelkow Blohm | Coarse and fine adjustment mechanism - has component between springs of different characteristics and adjustably loaded |
| US4373404A (en) * | 1980-06-30 | 1983-02-15 | Rockwell International Corporation | Differential screw actuator |
| GB2209294A (en) * | 1987-09-01 | 1989-05-10 | Yang Tai Her | Clamping device with screw-threaded adjustment |
| US4919001A (en) * | 1987-10-09 | 1990-04-24 | Olympus Optical Co., Ltd. | Coarse/fine adjustment coaxial handle for feeding microscope stage |
| CN1049413A (en) * | 1989-08-11 | 1991-02-20 | 郭卫国 | Finely and widely adjusting means of microscope |
| CN2863353Y (en) * | 2005-07-16 | 2007-01-31 | 嘉兴永佳精密机械制造有限公司 | Boring tool fast adjustment and fine adjustment mechanism for precision boring machine |
| CN2871071Y (en) * | 2006-03-28 | 2007-02-21 | 嘉兴永佳精密机械制造有限公司 | Boring cutter-rod microadjuster |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109203659A (en) * | 2017-08-01 | 2019-01-15 | 于正华 | A kind of textile printing and dyeing roller printing machine |
| CN109203658A (en) * | 2017-08-01 | 2019-01-15 | 于正华 | A kind of roller printing machine |
| CN109203660A (en) * | 2017-08-01 | 2019-01-15 | 于正华 | A kind of textile printing and dyeing printing machine |
| CN110556967A (en) * | 2018-05-31 | 2019-12-10 | 日本电产三协株式会社 | Linear drive device |
| US11149827B2 (en) | 2018-05-31 | 2021-10-19 | Nidec Sankyo Corporation | Linear drive device |
| CN110556967B (en) * | 2018-05-31 | 2022-04-01 | 日本电产三协株式会社 | Linear drive device |
| CN110076611A (en) * | 2019-04-12 | 2019-08-02 | 东莞市中科冠腾科技股份有限公司 | Based on synchronous and guide rail slide block automatic control gearshift |
| CN110978746A (en) * | 2019-12-23 | 2020-04-10 | 兰州石化职业技术学院 | Printing pressure adjusting mechanism of flexographic printing machine |
| CN112570885A (en) * | 2020-11-27 | 2021-03-30 | 沧州领创激光科技有限公司 | High-speed large-span beam transmission control mechanism and laser cutting machine |
| CN112743424A (en) * | 2021-01-12 | 2021-05-04 | 张书荣 | New energy automobile produces device with fine setting function |
| CN112743424B (en) * | 2021-01-12 | 2022-12-06 | 福虎新能源光电科技(江苏)有限公司 | New energy automobile produces device with fine setting function |
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Application publication date: 20110518 |