CN203197655U - Clearance-eliminating device for machine tool lead screw - Google Patents
Clearance-eliminating device for machine tool lead screw Download PDFInfo
- Publication number
- CN203197655U CN203197655U CN 201320025935 CN201320025935U CN203197655U CN 203197655 U CN203197655 U CN 203197655U CN 201320025935 CN201320025935 CN 201320025935 CN 201320025935 U CN201320025935 U CN 201320025935U CN 203197655 U CN203197655 U CN 203197655U
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- nut
- screw
- machine tool
- lead screw
- clearance
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Abstract
The utility model discloses a clearance-eliminating device for a machine tool lead screw. The clearance-eliminating device comprises a knife rest (1), the lead screw (2) and a clearance-eliminating nut (3), wherein the lead screw (2) is arranged on the knife rest (1) and in clearance fit with the clearance-eliminating nut (3), an adjusting nut (5) is also arranged on the lead screw (2), and the adjusting nut (5) is in working fit with the clearance-eliminating nut (3) through an adjusting screw (6). According to the clearance-eliminating device, the adjusting nut, an adjusting spring and the adjusting screw are arranged, and the adjusting screw is adjusted to compress the adjusting spring to eliminate clearance produced due to abrasion of the clearance-eliminating nut, so that the transverse machining precision of a machine tool is guaranteed for a long term. The clearance-eliminating device is simple and stable and reliable to operate.
Description
Technical field
The utility model belongs to the machine tool technical field, is specifically related to a kind of machine tool lead screw backlash eliminating equipment.
Background technology
Big and the high advantage of transmission accuracy is widely adopted with driving force in the screw mandrel transmission, for guaranteeing lead screw transmission precision and axial rigidity, must eliminate screw pair end play, crossing the single nut of arrogating to oneself ball except minority with trace eliminates the gap, the normal double nut device that adopts, utilize the displacement to axial of two nuts, two balls in the ball knife rest nut are adjacent to respectively on two of spiral rolling track opposite sides.But after nut used a period of time, because the wearing and tearing of nut can cause the nut gap to increase, lathe can't guarantee the transverse movement precision, and machining accuracy is reduced, and needs to change the machining accuracy that parts guarantee lathe.Therefore, develop a kind of simple in structurely, the backlash eliminating equipment that can eliminate between the double nut drive gap that produces owing to wearing and tearing and apply pretightning force for double nut is the key that overcomes the prior art deficiency.
The utility model content
It is a kind of simple in structure that the purpose of this utility model is to provide, and working stability is reliable, machine tool lead screw backlash eliminating equipment easy to adjust.
The purpose of this utility model is to realize like this, comprise knife rest, leading screw and the crack nut that disappears, on the described knife rest leading screw be set, leading screw with disappear the crack nut movingly, the adjustment nut also is set on the described leading screw, and described adjustment nut cooperates with the crack nut work that disappears by adjusting screw.
The utility model arranges and adjusts nut, adjusts spring and adjustment screw, adjusts spring by the compression of adjustment screw and eliminates the gap that produces owing to the crack nut wearing and tearing that disappear, and guarantees the horizontal machining accuracy of lathe for a long time.The utility model device is simple, and working stability is reliable, and is easy to adjust.
Description of drawings
Fig. 1 is the utility model device schematic diagram;
Fig. 2 is the side-looking device schematic diagram of Fig. 1;
Fig. 3 analyses and observe the device schematic diagram for the A-A of Fig. 2;
Fig. 4 analyses and observe the device schematic diagram for the B-B of Fig. 2;
Among the figure: 1-knife rest, 2-leading screw, the 3-crack nut that disappears, 4-adjusts spring, and 5-adjusts nut, and 6-adjusts screw, the axial screw of 7-.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described, but never in any form the utility model is limited, any conversion or replacement based on the utility model training centre is done all belong to protection domain of the present utility model.
Shown in Fig. 1 ~ 4, the utility model comprises knife rest 1, leading screw 2 and the crack nut 3 that disappears, and on the described knife rest 1 leading screw 2 is set, leading screw 2 with disappear crack nut 3 movingly, also arrange on the described leading screw 2 and adjust nut 5, described adjustment nut 5 cooperates with crack nut 3 work that disappear by adjusting screw 6.
Described adjustment nut 5 and disappearing arranges on the leading screw 2 between the crack nut 3 adjusts spring 4.
Described adjustment spring 4 is the compression spring, and two ends cooperate with adjustment nut 5 and crack nut 3 work that disappear respectively.
One group of axial screw 7 is set on the described adjustment nut 5, and crack nut 3 correspondences that disappear arrange one group of screw that cooperates with adjustment screw 6.
Described adjustment screw 6 ends arrange force application structure.
Described force application structure is yi word pattern, interior hexangle type or cross structure.
Be symmetrical arranged two axial screws 7 on the described adjustment nut 5, crack nut 3 correspondences that disappear arrange two screws that cooperate with adjustment screw 6.
The utility model operation principle and the course of work:
The utility model is adjusted nut and is adjusted spring by arranging, and has realized the purpose of the working clearance on the auxiliary elimination screw mandrel, has improved the running precision of screw mandrel, for the raising of machined into precision is laid a good foundation.Help pre-compression force disappearing crack nut and adjust between the nut and produce back force, the crack nut that disappears is moved a certain distance vertically, eliminate the crack nut check that to disappear behind the gap.What adjust screw mainly is to adjusting the nut guiding, guarantee that it is coaxial with the crack nut that disappears, simultaneously, adjust screw and also play the crack nut that fixedly disappears, preventing the effect of its rotation.Adjust spring by crack nut and the adjustment nut location of disappearing.
Claims (8)
1. machine tool lead screw backlash eliminating equipment, comprise knife rest (1), leading screw (2) and the crack nut (3) that disappears, leading screw (2) is set on the described knife rest (1), leading screw (2) with disappear crack nut (3) movingly, it is characterized in that: also arrange on the described leading screw (2) and adjust nut (5), described adjustment nut (5) cooperates with crack nut (3) work that disappears by adjusting screw (6).
2. machine tool lead screw backlash eliminating equipment according to claim 1 is characterized in that: axial screw (7) is set on the described adjustment nut (5), adjusts screw (6) and cooperate with crack nut (3) work that disappears by axial screw (7).
3. machine tool lead screw backlash eliminating equipment according to claim 1 and 2 is characterized in that: described adjustment nut (5) and disappear to arrange on the leading screw (2) between the crack nut (3) and adjust spring (4).
4. machine tool lead screw backlash eliminating equipment according to claim 3 is characterized in that: described adjustment spring (4) is the compression spring, two ends respectively with adjust nut (5) and the crack nut (3) that disappears and work and cooperate.
5. machine tool lead screw backlash eliminating equipment according to claim 1 and 2 is characterized in that: one group of axial screw (7) is set on the described adjustment nut (5), crack nut (3) correspondence that disappears arrange one group with adjust the screw that screw (6) cooperates.
6. machine tool lead screw backlash eliminating equipment according to claim 5, it is characterized in that: described adjustment screw (6) end arranges force application structure.
7. machine tool lead screw backlash eliminating equipment according to claim 6, it is characterized in that: described force application structure is yi word pattern, interior hexangle type or cross structure.
8. machine tool lead screw backlash eliminating equipment according to claim 1 and 2 is characterized in that: be symmetrical arranged two axial screws (7) on the described adjustment nut (5), crack nut (3) correspondence that disappears arrange two with adjust the screws that screw (6) cooperates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025935 CN203197655U (en) | 2013-01-18 | 2013-01-18 | Clearance-eliminating device for machine tool lead screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320025935 CN203197655U (en) | 2013-01-18 | 2013-01-18 | Clearance-eliminating device for machine tool lead screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203197655U true CN203197655U (en) | 2013-09-18 |
Family
ID=49141794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320025935 Expired - Fee Related CN203197655U (en) | 2013-01-18 | 2013-01-18 | Clearance-eliminating device for machine tool lead screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203197655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493618A (en) * | 2014-12-09 | 2015-04-08 | 重庆迪科汽车研究有限公司 | Feed screwclearance compensation structure |
-
2013
- 2013-01-18 CN CN 201320025935 patent/CN203197655U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104493618A (en) * | 2014-12-09 | 2015-04-08 | 重庆迪科汽车研究有限公司 | Feed screwclearance compensation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20170118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |