CN101244513A - Spherical guide of miniature numerical control machine - Google Patents
Spherical guide of miniature numerical control machine Download PDFInfo
- Publication number
- CN101244513A CN101244513A CNA2008100349943A CN200810034994A CN101244513A CN 101244513 A CN101244513 A CN 101244513A CN A2008100349943 A CNA2008100349943 A CN A2008100349943A CN 200810034994 A CN200810034994 A CN 200810034994A CN 101244513 A CN101244513 A CN 101244513A
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- China
- Prior art keywords
- guide rail
- ball bearing
- ball
- moving
- control machine
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- Bearings For Parts Moving Linearly (AREA)
Abstract
The invention relates to a ball bearing guide rail of the miniature NC machine tool, which is characterized in that: a moving guide rail is connected with two sides of the inner wall of the worktable along the moving direction of the guide rail, and is fixed with the worktable by a tightening screw of the moving guide rail, a rolling element is connected between the moving guide rail and the fixed guide rail embedded between two moving guide rails; the rolling element comprises a ball bearing and a ball bearing septa, and the ball bearing septa is connected with the moving guide rail, the ball bearing septa is provided with an opening, and the ball bearing is arranged in the opening; an adjusting screw of the guide rail clearance of the ball bearing is connected with the two lateral walls of the worktable; the round holes of the ball bearing septa are evenly arranged, and the aperture is a little bigger than the diameter of the ball bearing. The ball bearing guide rail of the miniature NC machine tool has the advantages of simple structure, economical and practical effects, convenient adjustment, compact structure and high precision. The invention can be widely used in the scientific research and teaching practice of the NC machine tool.
Description
Technical field
The present invention relates to a kind of feeding guide rail structure of Digit Control Machine Tool, be specifically related to a kind of spherical guide that is used for miniature numerical control machine.
Background technology
The type of production structure of numerically controlled machine-tool complexity of machining factory use at present, of many uses, though accuracy height, but cost an arm and a leg, along with development of numerical control (NC) technology, the reform of colleges and universities' numerical control course is imperative with renewal, is badly in need of a kind of miniature numerical control machine with general Digit Control Machine Tool basic function for this reason.Be used for teaching if purchase the type of production Digit Control Machine Tool, waste not only impracticable but also real the genus, there are a lot of functions not use, need a kind of miniature numerical control machine that is applied to impart knowledge to students of redesign, should guarantee the accuracy height, reasonable in design, guarantee that again basic function is complete, cheap, long service life, studies have shown that: many structures of miniature lathe can not be the scaled down version of type of production Digit Control Machine Tool fully, especially miniature numerical control machine feeding guide rail transmission system requires the positioning accuracy height, guidance quality is good, the autokinesis height, the normal at present rolling guide form that adopts modular normal structure, but this infrastructure cost height and size are compact inadequately, are not suitable for adopting on economical miniature numerical control machine.How microminiaturized, under economical and practical prerequisite, guarantee the stationarity and the sensitivity of transmission, need carry out improvement and design to the guide rail of general NC lathe.
Summary of the invention
The present invention discloses a kind of spherical guide of miniature numerical control machine, its objective is that to overcome the existing big function of Digit Control Machine Tool volume complete, complex structure, cost an arm and a leg, the rolling guide form of modular normal structure, cost height and structure are not compact, be not suitable for the drawback that on economical miniature numerical control machine, adopts, therefore need be improved the feeding guide rail structure of general Digit Control Machine Tool, make it not only have higher precision, heat endurance and dynamic sensitivity, and have higher rigidity, and damping precision and wearability, thermal deformation is little.
Usually on the lathe guide rail of fixing a side in the motion process is called and decides guide rail, be called moving guide rail moving another cooperation guide rail that moves in the above.Thinking of the present invention be and the fixing moving guide rail of platen 1 with decide placement several rolling elements---ball between the guide rail, friction during the machine tool guideway relative motion is rolling friction like this, no matter when doing at a high speed or making low-speed motion, its coefficient of friction is constant substantially, so can not produce creeping phenomenon when low-speed motion.Rolling-operation makes workbench tractive force little, and is mobile very light, the positioning accuracy height.In order to guarantee ball in the operation of guide rail total length, the position of ball is maintained fixed by partition, and links with moving guide rail, and promptly rolling element is along with the operation of moving guide rail is constantly being moved, decided to roll between the guide rail.
The spherical guide of miniature numerical control machine, comprise platen, decide guide rail, move guide rail and ball, it is characterized in that: workbench is along the inwall both sides of guide rail moving direction, be connected with moving guide rail, by moving guide rail trip bolt and stationary table, embed deciding between two moving guide rails and be connected with rolling element between guide rail and the moving guide rail.
Described rolling element comprises ball and ball partition, and the ball partition is connected with moving guide rail, perforate on the ball partition, and ball places in the hole.
The workbench two side also is connected with the spherical guide clearance adjusting screw.
Circular hole on the ball partition is evenly distributed, and the aperture is slightly larger than ball diameter.
Advantage of the present invention and good effect are: owing to adopt rolling friction, no matter when doing at a high speed or making low-speed motion, its coefficient of friction is constant substantially, so can not produce creeping phenomenon when low-speed motion; Rolling-operation makes workbench tractive force little, and is mobile very light, the positioning accuracy height; Because the position of ball is maintained fixed by the ball partition, and links with moving guide rail, make rolling element along with the operation of moving guide rail is constantly being moved, decided to roll between the guide rail.The present invention is simple in structure, economical and practical, easy to adjust, compact conformation, and the precision height can be widely used in the scientific research and the teaching practice of Digit Control Machine Tool.
Description of drawings
Fig. 1 is a spherical guide master TV structure schematic diagram of the present invention;
Fig. 2 is a spherical guide A-A view of the present invention;
Fig. 3 is a ball partition schematic diagram.
1. platen, 2. the spherical guide clearance adjusting screw is 3. decided guide rail, 4. moving guide rail trip bolt, 5. ball partition, 6. ball, 7. moving guide rail.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
The spherical guide of miniature numerical control machine, as shown in Figure 2, workbench 1 is connected with moving guide rail 7 along the inwall both sides of guide rail moving direction, by moving guide rail trip bolt 4 and stationary table, embed deciding between two moving guide rails and be connected with rolling element between guide rail 3 and the moving guide rail; Rolling element comprises ball 6 and ball partition 5, and the ball partition is connected with moving guide rail; Perforate on the ball partition 5, ball 6 places in the hole; The workbench two side also is connected with spherical guide clearance adjusting screw 2, is used to adjust the gap between ball and the guide rail and the size of pretightning force; Circular hole on the ball partition is evenly distributed as shown in Figure 3, and the aperture is slightly larger than ball diameter.
(see figure 1) after table drive motor starts drives the leading screw rotation of this workbench, moves thereby drive workbench 1, and at this moment moving guide rail 7 is along with motion (see figure 2) together, and the ball 6 of both sides under the drive of moving guide rail 7 pure rolling takes place simultaneously.Ball partition 5 remains unchanged the relative position of row's ball 6, it moves with moving guide rail 7, and there is certain interval between the guide pass, can guarantee like this these balls 6 and moving, decide not have the gap between the guide rail, even certain pretension arranged, thereby guarantee pure rolling only takes place in the whole service process, do not have sliding phenomenon.Owing to adopt rolling friction, coefficient of rolling friction is 0.0025-0.005, is far smaller than rail plate between fixed, the moving guide rail.
Claims (4)
1. the spherical guide of miniature numerical control machine, comprise platen, decide guide rail, move guide rail and ball, it is characterized in that: workbench is along the inwall both sides of guide rail moving direction, be connected with moving guide rail, by moving guide rail trip bolt and stationary table, embed deciding between two moving guide rails and be connected with rolling element between guide rail and the moving guide rail.
2. the spherical guide of miniature numerical control machine according to claim 1, it is characterized in that: described rolling element comprises ball and ball partition, the ball partition is connected with moving guide rail, perforate on the ball partition, ball places in the hole.
3. the spherical guide of miniature numerical control machine according to claim 1, it is characterized in that: the workbench two side also is connected with the spherical guide clearance adjusting screw.
4. the spherical guide of miniature numerical control machine according to claim 1, it is characterized in that: the circular hole on the ball partition is evenly distributed, and the aperture is slightly larger than ball diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100349943A CN101244513A (en) | 2008-03-21 | 2008-03-21 | Spherical guide of miniature numerical control machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100349943A CN101244513A (en) | 2008-03-21 | 2008-03-21 | Spherical guide of miniature numerical control machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101244513A true CN101244513A (en) | 2008-08-20 |
Family
ID=39945310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100349943A Pending CN101244513A (en) | 2008-03-21 | 2008-03-21 | Spherical guide of miniature numerical control machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101244513A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672316A (en) * | 2012-09-26 | 2014-03-26 | 威申精密仪器(上海)有限公司 | Movable fine adjusting system |
| CN113857879A (en) * | 2021-09-28 | 2021-12-31 | 无锡京华重工装备制造有限公司 | Device for reducing friction coefficient of sliding plate |
| CN114442253A (en) * | 2022-03-11 | 2022-05-06 | 中国科学院光电技术研究所 | Axial micro-motion adjusting device for optical element |
-
2008
- 2008-03-21 CN CNA2008100349943A patent/CN101244513A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672316A (en) * | 2012-09-26 | 2014-03-26 | 威申精密仪器(上海)有限公司 | Movable fine adjusting system |
| CN113857879A (en) * | 2021-09-28 | 2021-12-31 | 无锡京华重工装备制造有限公司 | Device for reducing friction coefficient of sliding plate |
| CN113857879B (en) * | 2021-09-28 | 2022-08-16 | 无锡京华重工装备制造有限公司 | Device for reducing friction coefficient of sliding plate |
| CN114442253A (en) * | 2022-03-11 | 2022-05-06 | 中国科学院光电技术研究所 | Axial micro-motion adjusting device for optical element |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080820 |