CN218729911U - Micro-motion screw rod clearance eliminating mechanism - Google Patents
Micro-motion screw rod clearance eliminating mechanism Download PDFInfo
- Publication number
- CN218729911U CN218729911U CN202222815035.3U CN202222815035U CN218729911U CN 218729911 U CN218729911 U CN 218729911U CN 202222815035 U CN202222815035 U CN 202222815035U CN 218729911 U CN218729911 U CN 218729911U
- Authority
- CN
- China
- Prior art keywords
- micro
- motion
- seat
- nut
- screw rod
- Prior art date
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a micro-motion screw clearance eliminating mechanism, wherein a guide rail seat is arranged on an installation base, a micro-motion plate is arranged on the guide rail seat, a nut seat is arranged at the right end of the guide rail seat, a micro-motion nut is arranged in the nut seat, the excircle of the micro-motion nut is in clearance-free fit with the inner hole of the nut seat, and the micro-motion nut slides back and forth in the nut seat; the micro-motion nut is matched with the micro-motion screw rod, the micro-motion screw rod is arranged in the locking seat, the locking seat is provided with a locking hand wheel, and the micro-motion screw rod is connected with the micro-motion plate; a tension spring seat is arranged between the locking seat and the nut seat, and the anti-backlash tension spring is arranged in the tension spring seat; the right end of the locking seat is connected with a thrust ball bearing, and the thrust ball bearing is connected with a micro-motion hand wheel; the micro data of the micro nut and the micro screw rod is read out by connecting a steel strip grating and a grating reading head with a digital display box or a computer. The utility model discloses eliminate lead screw machining error and fit tolerance clearance, just, reverse homoenergetic reaches the effect of zero clearance trace location, trace removal when making the screw drive.
Description
Technical Field
The utility model relates to a technical field in micro-moving regulation and elimination clearance specifically relates to a fine motion lead screw clearance elimination mechanism.
Background
The micro-motion workbench or the micro-motion mechanism provides a one-dimensional, two-dimensional and three-dimensional accurate micro-motion and positioning tool for scientific and technical research or metering detection, and is one of the key mechanisms for scientific and technical research.
Summarizing the micromotion mechanisms related at home and abroad at present, the typical classification is as follows: (1) a flexible hinge type micro-motion mechanism; (2) rolling guide rail type micro-motion mechanisms; (3) a sliding guide rail type micro-motion mechanism; (4) an air-floating type micro-motion mechanism; and (5) a magnetic suspension type micromotion mechanism. Although the precision of several above types of micro-motion mechanisms is high, the mechanism is comparatively complicated relatively, and the utility model discloses a mechanism, simple structure is practical, can realize that two-way fine motion zero clearance removes, has improved reliability and the convenience of using.
Disclosure of Invention
An object of the utility model is to provide a fine motion lead screw clearance elimination mechanism, this mechanism focus on eliminating lead screw machining error and fit tolerance clearance, just, reverse homoenergetic reaches the effect of zero clearance micro-positioning, micro-displacement when making the screw drive, simultaneously, has still accomplished simple and practical, efficient effect of mechanism.
The technical scheme of the utility model:
a micro-motion lead screw clearance eliminating mechanism comprises a guide rail seat, a micro-motion plate, a micro-motion nut, a clearance eliminating tension spring and a micro-motion lead screw, wherein the guide rail seat is arranged on an installation base; the micromotion screw rod is arranged in the locking seat, the locking seat is provided with a locking hand wheel, and the micromotion screw rod is connected with the micromotion plate; a tension spring seat is arranged between the locking seat and the nut seat, and the anti-backlash tension spring is arranged in the tension spring seat; the right end of the locking seat is connected with a thrust ball bearing, and the thrust ball bearing is connected with a micro-motion hand wheel; the micro data of the micro nut and the micro screw rod is read out by connecting a steel strip grating and a grating reading head with a digital display box or a computer.
Further, the anti-backlash tension spring is installed through a gasket A; the anti-backlash tension spring is horizontally arranged.
Further, the thrust ball bearing is mounted through a washer B.
Further, the model RGS20-S of the steel band grating, manufacturer: renyao in UK.
Further, the model RGH24X 30F00A of the grating readhead, manufacturer: renyao in UK.
Further, the digital display box is an outsourcing DS402.
The principle of the utility model is as follows:
the right end of the guide rail seat is provided with a nut seat, a micro-motion nut is arranged in the nut seat, the excircle of the micro-motion nut is in gapless fit with the inner hole of the nut seat, the micro-motion nut slides forwards and backwards in the nut seat to eliminate the interference problem during relative movement, the micro-motion screw rod is matched with the micro-motion nut to realize micro-motion adjustment, the stretching length of the anti-backlash tension spring is adjusted through the horizontally arranged anti-backlash tension spring to adjust the tension force to a proper size, the micro-motion screw rod is enabled to be in positive rotation and reverse rotation fine adjustment processes, the micro-motion nut and the micro-motion screw rod are always contacted at the same side, and the purpose of eliminating the gap between the screw rod and the nut during fine adjustment of the micro-motion screw rod is achieved. In addition, the micro-motion data is read out by connecting the steel strip grating and the grating reading head with a digital display box or a computer.
The utility model has the advantages that: the micro-motion gap eliminating mechanism related at home and abroad at present is effectively simplified, bidirectional gapless micro motion can be realized, and the reliability and convenience in use are improved. Secondly, the utility model discloses a technical field is very extensive, can be applied to fields such as workstation, experimental apparatus, precision measurement location, the measurement that need the trace to remove.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of fig. 1.
The labels in the figure are: 1. the device comprises a guide rail seat, 2, a micro moving plate, 3, a micro nut, 4, a nut seat, 5, an anti-backlash tension spring, 6, a tension spring seat, 7, gaskets A and 8, a thrust ball bearing, 9 gaskets B and 10, a micro hand wheel, 11, a locking seat, 12, a micro lead screw, 13, a locking hand wheel, 14, a steel strip grating, 15, a grating reading head, 16 and a mounting base.
Detailed Description
The invention is further illustrated by the following figures and examples.
Referring to fig. 1-2, a micro-motion lead screw clearance elimination mechanism comprises a guide rail seat 1, a micro-motion plate 2, a micro-motion nut 3, a clearance elimination tension spring 5 and a micro-motion lead screw 12, wherein the guide rail seat 1 is installed on an installation base 16, the micro-motion plate 2 is installed on the guide rail seat 1, a nut seat 4 is installed at the right end of the guide rail seat 1, the micro-motion nut 3 is installed in the nut seat 4, the excircle of the micro-motion nut 3 is in clearance-free fit with the inner hole of the nut seat 4, and the micro-motion nut 3 slides back and forth in the nut seat 4; the micromotion nut 3 is matched with a micromotion screw rod 12, the micromotion screw rod 12 is arranged in a locking seat 11, a locking hand wheel 13 is arranged on the locking seat 11, and the micromotion screw rod 12 is connected with the micromotion plate 2; a tension spring seat 6 is arranged between the locking seat 11 and the nut seat 4, and a gap eliminating tension spring 5 is arranged in the tension spring seat 6; the right end of the locking seat 11 is connected with a thrust ball bearing 8, and the thrust ball bearing 8 is connected with a micro-motion hand wheel 10; the micromotion data of the micromotion nut 3 and the micromotion screw 12 are read out by connecting a digital display box (purchased from DS 402) or a computer through a steel strip grating 14 (model RGS20-S, manufacturer: renyshao in UK) and a grating reading head 15 (model RGH24X 30F00A, manufacturer: renyshao in UK).
The anti-backlash tension spring 5 is installed through a gasket A7; the anti-backlash tension spring 5 is horizontally arranged.
The thrust ball bearing 8 is mounted by a washer B9.
The locking seat 11 and the locking hand wheel 13 are used for locking the micro screw rod 12 to a certain position after being adjusted to a required position, so that the relative position of the micro movable plate 2 is fixed, and the purpose of preventing position change is achieved.
The mounting base 16 is an auxiliary mechanism designed for specific applications.
The utility model discloses a nut seat 4 is installed to right-hand member at guide rail seat 1, install fine motion nut 3 in the nut seat 4, 3 excircles of fine motion nut and the 4 hole zero clearance cooperation of nut seat, fine motion nut 3 is preceding in nut seat 4, the back slides, interference problem when being used for eliminating relevant removal, realize fine motion adjustment's fine motion lead screw 12 with the cooperation of fine motion nut 3, the crack extension spring 5 that disappears of arranging through the level, adjust the tensile length of crack extension spring 5 that disappears, be used for adjusting pulling force to suitable size, let fine motion lead screw 12 at the forward rotation and the back-spin fine setting in-process, let fine motion nut 3 and the contact of fine motion lead screw 12 all the time at the homonymy, the purpose in the clearance of eliminating lead screw and nut when reaching fine setting of fine motion lead screw 12. In addition, the micro-motion data is read out by connecting the steel strip grating and the grating reading head with a digital display box or a computer.
The utility model discloses when can realizing the screw-nut micro-drive, can effectively eliminate screw-nut clearance error and fit tolerance, reach accurate driven purpose. The utility model discloses a technical field is very extensive, can be applied to fields such as workstation, experimental apparatus, precision measurement location, the measurement that need the trace to remove.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A micro-motion screw rod gap eliminating mechanism is characterized in that: the device comprises a guide rail seat (1), a micro-motion plate (2), a micro-motion nut (3), a gap eliminating tension spring (5) and a micro-motion screw rod (12), wherein the guide rail seat (1) is installed on an installation base (16), the micro-motion plate (2) is installed on the guide rail seat (1), a nut seat (4) is installed at the right end of the guide rail seat (1), the micro-motion nut (3) is installed in the nut seat (4), the excircle of the micro-motion nut (3) is in gapless fit with the inner hole of the nut seat (4), and the micro-motion nut (3) slides back and forth in the nut seat (4); the micromotion nut (3) is matched with the micromotion screw rod (12), the micromotion screw rod (12) is arranged in the locking seat (11), the locking seat (11) is provided with a locking hand wheel (13), and the micromotion screw rod (12) is connected with the micromotion plate (2); a tension spring seat (6) is arranged between the locking seat (11) and the nut seat (4), and the anti-backlash tension spring (5) is arranged in the tension spring seat (6); the right end of the locking seat (11) is connected with a thrust ball bearing (8), and the thrust ball bearing (8) is connected with a micro hand wheel (10); the micro-motion data of the micro-motion nut (3) and the micro-motion screw rod (12) is connected with a digital display box or read by a computer through a steel strip grating (14) and a grating reading head (15).
2. The micromotion screw clearance elimination mechanism of claim 1, wherein: the anti-backlash tension spring (5) is installed through a gasket A (7); the anti-backlash tension spring (5) is horizontally arranged.
3. The micromotion screw clearance elimination mechanism of claim 1, wherein: the thrust ball bearing (8) is mounted through a gasket B (9).
4. The micromotion screw clearance elimination mechanism of claim 1, wherein: model RGS20-S of the steel band grating (14), manufacturer: renyao in UK.
5. The micromotion screw clearance elimination mechanism of claim 1, wherein: model RGH24X 30F00A of the grating readhead (15), manufacturer: renysha, UK.
6. The micromotion screw clearance elimination mechanism of claim 1, wherein: the digital display box is an outsourcing DS402.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222815035.3U CN218729911U (en) | 2022-10-25 | 2022-10-25 | Micro-motion screw rod clearance eliminating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222815035.3U CN218729911U (en) | 2022-10-25 | 2022-10-25 | Micro-motion screw rod clearance eliminating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218729911U true CN218729911U (en) | 2023-03-24 |
Family
ID=85591345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222815035.3U Active CN218729911U (en) | 2022-10-25 | 2022-10-25 | Micro-motion screw rod clearance eliminating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218729911U (en) |
-
2022
- 2022-10-25 CN CN202222815035.3U patent/CN218729911U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7644493B2 (en) | Adjustable head stack comb | |
| CN101369155A (en) | Locking control method and system of large-stroke nanometer displacement positioning macro-movement bench | |
| US6437946B2 (en) | Coarse and fine positioning device employing a single driving mechanism | |
| CN218729911U (en) | Micro-motion screw rod clearance eliminating mechanism | |
| CN210600075U (en) | Double-nut seat device for pre-tightening ball screw | |
| CN206595828U (en) | Reagent card linear reciprocation transmission mechanism | |
| CN111628624A (en) | KK linear motor module | |
| CN210757185U (en) | Special grinding wheel dressing jig | |
| US5148341A (en) | Read-write device for data processing with magnetic information carriers | |
| CN219265235U (en) | Grating ruler reading head sliding connection structure | |
| CN217036983U (en) | Compact straight line module | |
| CN220791781U (en) | Supporting structure of guide rail | |
| CN220505707U (en) | Simple structure for eliminating reverse gap of screw rod | |
| CN215110078U (en) | Double-guide-rail structure | |
| CN212003938U (en) | Spacing adjusting combined roller for rolling of track | |
| CN214063565U (en) | High-straightness moving structure | |
| CN210938141U (en) | High-precision fine adjustment mechanism | |
| CN219649703U (en) | X-Y adjustable accurate positioning high-load small-sized stable structure | |
| US7660076B2 (en) | Helical gear actuator for tape drive systems | |
| CN219452847U (en) | Worm and gear structure capable of automatically eliminating gaps | |
| CN212928685U (en) | Gear rack position gap fine-tuning structure | |
| CN212227975U (en) | U-shaped beam measuring device capable of automatically adjusting measuring position | |
| CN217608067U (en) | Circuit board carrier capable of being adjusted manually | |
| CN219074887U (en) | Numerical control rotary workbench | |
| CN220570909U (en) | Guide rail driving device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |