CN107270847B - A kind of ball-screw-transmission captive nut attachment device and the measuring machine for being equipped with the device - Google Patents
A kind of ball-screw-transmission captive nut attachment device and the measuring machine for being equipped with the device Download PDFInfo
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- CN107270847B CN107270847B CN201710507244.2A CN201710507244A CN107270847B CN 107270847 B CN107270847 B CN 107270847B CN 201710507244 A CN201710507244 A CN 201710507244A CN 107270847 B CN107270847 B CN 107270847B
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- screw
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- oscillating bearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Vibration Prevention Devices (AREA)
Abstract
A kind of ball-screw-transmission captive nut attachment device and the measuring machine for being equipped with the device, its device includes ball-screw and c-type plate, the feed screw nut being matched therewith is installed on the ball-screw, adapter is arranged with outside the feed screw nut, the adapter two sides are respectively equipped with left oscillating bearing and right oscillating bearing, the adapter upper end is equipped with upper joint bearing, the left oscillating bearing and right oscillating bearing are sticked in respectively in the U-type groove in c-type board ends portion, and the upper joint bearing is sticked in the through-hole on c-type plate top.Using ball-screw-transmission captive nut attachment device of the present invention, the influence of lead screw amount of deflection and radial vibration to measuring machine precision can be eliminated, while being mounted and dismounted again more convenient.
Description
Technical field
The present invention relates to measuring machine technical field more particularly to a kind of ball-screw-transmission captive nut attachment devices and peace
Measuring machine equipped with the device.
Background technique
Ball leading screw driving largely applies to the precision drive of coordinate measuring machine.Usually there are two types of installations at ball-screw both ends
Mode, one kind are that one end is fixed, one end is moved about, and another kind is fixed for both ends.
General lead screw is installed on granite worktable, and granite is different from the thermal expansion coefficient of lead screw material, works as hair
Raw temperature change can have biggish internal stress, cause the loss of precision if lead screw both ends use fixed installation mode；
So ball-screw-transmission generally uses one end to fix, the mounting means of one end travelling.
Lead screw inevitably centrifugal force in self gravity, feed screw nut gravity, rotary course under the action of produce
Raw certain small amount of deflection and radial vibration；In measuring machine motion process, this radial vibration position different in lead screw,
Amplitude is not also identical；If feed screw nut and measuring machine moving component are rigidly connected, although this radial vibration is more small,
Also it can be transmitted to moving component, to reduce the repeatability precision of measuring machine.In addition, feed screw nut and measuring machine moving component are rigid
Property connection so that inside configuration is generated biggish internal stress, so that measuring machine movement is had some setbacks, also result in the reduction of precision；Measurement
Machine can have multiple installation and transportation in life cycle, if dismantling transmission mechanism, be difficult to be installed to reset condition again,
It needs that measuring machine precision is checked and compensated again, increases many times and cost of labor.
Summary of the invention
The present invention provides a kind of ball-screw-transmission captive nut attachment device and the measuring machine for being equipped with the device, eliminates
The influence of lead screw amount of deflection and radial vibration to measuring machine precision, while mounting and dismounting again more convenient.
In order to solve the above-mentioned technical problems, the present invention provides a kind of ball-screw-transmission captive nut attachment device, packets
Ball-screw and c-type plate are included, the feed screw nut being matched therewith is installed on the ball-screw, is arranged outside the feed screw nut
There is adapter, the adapter two sides are respectively equipped with left oscillating bearing and right oscillating bearing, and the adapter upper end is equipped with upper pass
Bearings, the left oscillating bearing and right oscillating bearing are sticked in respectively in the U-type groove in c-type board ends portion, the upper pass
Bearings are sticked in the through-hole on c-type plate top.
Preferably, it is provided with a card slot by the U-type groove in c-type board ends portion, makes to form a thin plate knot by the U-type groove
Structure, c-type plate side is equipped with adjustable bulb jackscrew and one end withstands the thin-slab structure, so as to described in minor adjustments
The size of U-type groove.
Preferably, the card slot opened up by c-type board ends portion U-type groove is diagonal each other, and one of card slot is opened in U-shaped
The front of slot, another card slot are opened in the rear of another U-type groove.Preferably, C template upper end is equipped with L-type plate.
Preferably, the adapter two sides and upper end are equipped with pin shaft, the left oscillating bearing, right oscillating bearing and upper pass
Bearings are individually fixed on the corresponding pin shaft by screw.
Preferably, the material of the c-type plate is spring steel.
A kind of measuring machine, including above-mentioned ball-screw-transmission captive nut attachment device, the c-type plate and the measurement
The moving parts of machine connects.
Preferably, the c-type plate is connect by the L-type plate with the moving parts of the measuring machine.
Compared with prior art, the invention has the following beneficial effects:
The present invention is fixed with adapter by being arranged on the outside of feed screw nut, and the two sides and upper end of adapter are total by pin shaft
Oscillating bearing there are three fixed, three oscillating bearings are stuck in the U-type groove for the C template being connected with measuring machine moving parts
In through-hole, by three oscillating bearings on adapter two sides and top and three oscillating bearings can be in U-type groove and through-hole
In up and down Frictional Slipping, left oscillating bearing and right oscillating bearing side-friction can be slided in U slot, so both can be continuously
The transmitting axial freedom of gap, and the radial freedom degree between feed screw nut and c-type plate can be discharged, while passing through insertion switching
The pin shaft of seat blocks feed screw nut, prevents feed screw nut rotation, to eliminate amount of deflection and radial vibration that lead screw rotation generates
Influence problem to measuring machine precision.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, not
Inappropriate limitation of the present invention is constituted, in the accompanying drawings:
Fig. 1 is the cross-sectional view of embodiment ball-screw-transmission captive nut attachment device；
Fig. 2 is the schematic diagram of embodiment ball-screw-transmission captive nut attachment device；
Fig. 3 is the schematic diagram at another visual angle of embodiment ball-screw-transmission captive nut attachment device；
Fig. 4 is the side view of embodiment ball-screw-transmission captive nut attachment device；
Fig. 5 is embodiment c-type plate schematic diagram.
1, ball-screw；2, feed screw nut；3, adapter；4, pin shaft；5, card slot；6, c-type plate；7, L-type plate；8, bulb top
Silk；9, M6 screw；10, U-type groove；11, left oscillating bearing；12, big brazier head screw；13, upper joint bearing；14, right oscillating bearing；
15, thin-slab structure；16, through-hole.
Specific embodiment
In order to more fully understand technology contents of the invention, below in conjunction with attached drawing and specific embodiment to the present invention
It is described further and illustrates.
Embodiment
As shown in Figures 1 to 5, a kind of ball-screw-transmission captive nut attachment device shown in the present embodiment, including rolling
Ballscrew 1 and c-type plate 6 are equipped with the feed screw nut 2 being matched therewith on ball-screw 1, switching are arranged with outside feed screw nut 2
Seat 3,3 two sides of adapter and upper end are equipped with pin shaft 4, by after the outboard end spreading glue of three pin shafts 4, then cover respectively
It is equipped with threaded hole equipped with left oscillating bearing 11, right oscillating bearing 14 and upper joint bearing 13, and in the outboard end of pin shaft 4, then
It is pressed in threaded hole with big brazier head screw 12 that left oscillating bearing 11, right oscillating bearing 14 and upper joint bearing 13 is permanent solid respectively
Due on corresponding pin shaft 4, prevent left oscillating bearing 11, right oscillating bearing 14 and upper joint bearing 13 from moving on pin shaft 4,
Radial clearance will not be generated in this way；Left oscillating bearing 11 and right oscillating bearing 14 are sticked in the U of 6 both ends of C template setting respectively
In type groove 10, upper joint bearing 13 is sticked in the through-hole 16 on 6 top of c-type plate, left oscillating bearing 11,14 and of right oscillating bearing
Upper joint bearing 13 can in U-type groove 10 or through-hole 16 up and down low friction sliding, to eliminate in lead screw radial vibration
The influence to move up and down to measuring machine moving parts；Left oscillating bearing 11, right oscillating bearing 14 can also be in U-type grooves 10 laterally
Low friction sliding and feed screw nut can carry out a minute angle rotation (since oscillating bearing is made of inner ring and outer ring,
Inner ring is contacted with spherical outer ring and inner ring can make 360 ° of rotations around outer ring, has slight jitter in feed screw nut's motion process
When, feed screw nut drives oscillating bearing inner ring together around oscillating bearing outer ring fine rotation by pin shaft on adapter), it can be with
Influence of the transverse movement in lead screw radial vibration to measuring machine moving parts is eliminated, while passing through the pin shaft 4 of insertion adapter 3
Feed screw nut 2 is blocked, 2 rotation of feed screw nut is prevented；6 upper end of c-type plate is equipped with L-type plate 7 by M6 screw 9.
In the present embodiment, it is provided with the card slot 5 of 2mm thickness by the U-type groove 10 at 6 both ends of c-type plate, makes 10 side shape of U type groove
At a thin-slab structure 15,6 side of c-type plate is equipped with adjustable bulb jackscrew 8 and its inner opposite end withstands thin-slab structure 15, so as to
The size of minor adjustments U-type groove 10, and then adjust the clamping force of U-type groove 10.
In the present embodiment, the card slot 5 opened up by 6 both ends U-type groove 10 of c-type plate is diagonal each other, and one of card slot 5 opens up
In the front of U-type groove 10, another card slot 5 is opened in the rear of another U-type groove 10, so no matter feed screw nut toward front or
Rear direction movement, 6 rigidity of c-type plate is higher, and passes through the rigidity of the adjustable thin-slab structure 15 of bulb jackscrew 8, to increase
Strong structure reliability.
In the present embodiment, the installation hole location waist round hole being arranged on L-type plate 7 passes through oval when being installed with c-type plate 6
It hole can be with the position of the mobile L-type plate 7 of small range.
In the present embodiment, 10 size of U-type groove can be slightly less than left oscillating bearing or right oscillating bearing outer diameter, be also possible to U
10 size of type groove is identical as left oscillating bearing or right oscillating bearing outer diameter.
In the present embodiment, the material of c-type plate is spring steel.
The present invention also provides a kind of three coordinate measuring machine, including above-mentioned ball-screw-transmission captive nut attachment device with
And moving parts, the L-type plate 7 in ball-screw-transmission captive nut attachment device are connect with moving parts, L-type plate 7 therein
One end 6 upper end of c-type plate is mounted on by M6 screw 9, the other end of L-type plate 7 is installed on the moving parts of measuring machine；Pass through
Waist round hole on L-type plate 7 can move position of the L template 7 on c-type plate 6 with small range, and then can small-scale adaptation survey
Position difference between amount machine moving parts and c-type plate 6；By the ball wire in ball-screw-transmission captive nut attachment device
Thick stick rotates and then moving parts is driven to be moved, to realize accurate positioning.
It is provided for the embodiments of the invention technical solution above to be described in detail, specific case used herein
The principle and embodiment of the embodiment of the present invention are expounded, the explanation of above embodiments is only applicable to help to understand this
The principle of inventive embodiments；At the same time, for those skilled in the art, according to an embodiment of the present invention, in specific embodiment party
There will be changes in formula and application range, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (7)
1. a kind of ball-screw-transmission captive nut attachment device, including ball-screw and c-type plate, it is characterised in that: the rolling
The feed screw nut being matched therewith is installed on ballscrew, adapter, the adapter two sides are arranged with outside the feed screw nut
Be respectively equipped with left oscillating bearing and right oscillating bearing, the adapter upper end is equipped with upper joint bearing, the left oscillating bearing and
Right oscillating bearing is sticked in respectively in the U-type groove in c-type board ends portion, and the upper joint bearing is sticked on the c-type plate
In the through-hole in portion；It is provided with a card slot by the U-type groove in c-type board ends portion, makes to form a thin-slab structure by the U-type groove,
C-type plate side is equipped with adjustable bulb jackscrew and one end withstands the thin-slab structure.
2. ball-screw-transmission captive nut attachment device according to claim 1, it is characterised in that: the c-type plate two
The card slot opened up by the U-type groove of end is diagonal each other, and one of card slot is opened in the front of U-type groove, another card slot is opened in
The rear of another U-type groove.
3. ball-screw-transmission captive nut attachment device according to claim 2, it is characterised in that: on the c-type plate
End is equipped with L-type plate.
4. ball-screw-transmission captive nut attachment device according to claim 3, it is characterised in that: the adapter two
Side and upper end are equipped with pin shaft, and the left oscillating bearing, right oscillating bearing and upper joint bearing are individually fixed in phase by screw
On the pin shaft answered.
5. ball-screw-transmission captive nut attachment device according to claim 4, it is characterised in that: the c-type plate
Material is spring steel.
6. a kind of measuring machine, it is characterised in that: connected including ball-screw-transmission captive nut as claimed in claim 1 or 2
Device, the c-type plate are connect with the moving parts of the measuring machine.
7. a kind of measuring machine, it is characterised in that: including the described in any item ball-screw-transmission captive nuts of such as claim 3-5
Attachment device, the c-type plate are connect by the L-type plate with the moving parts of the measuring machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710507244.2A CN107270847B (en) | 2017-06-28 | 2017-06-28 | A kind of ball-screw-transmission captive nut attachment device and the measuring machine for being equipped with the device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710507244.2A CN107270847B (en) | 2017-06-28 | 2017-06-28 | A kind of ball-screw-transmission captive nut attachment device and the measuring machine for being equipped with the device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107270847A CN107270847A (en) | 2017-10-20 |
| CN107270847B true CN107270847B (en) | 2019-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710507244.2A Active CN107270847B (en) | 2017-06-28 | 2017-06-28 | A kind of ball-screw-transmission captive nut attachment device and the measuring machine for being equipped with the device |
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| CN (1) | CN107270847B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4340078A1 (en) * | 1992-11-25 | 1994-07-07 | Nsk Ltd | Ball screw linear guide unit |
| CN201140337Y (en) * | 2007-12-21 | 2008-10-29 | 威海华东数控股份有限公司 | Flexible feed screw apparatus |
| CN201407999Y (en) * | 2009-03-20 | 2010-02-17 | 海克斯康测量技术(青岛)有限公司 | Ball screw transmission connection device of measuring machine and measuring machine with same |
| CN201429414Y (en) * | 2009-07-09 | 2010-03-24 | 曲殿光 | Connecting device of ball screws for transmission of three-coordinate measuring machine |
| CN203023418U (en) * | 2013-01-15 | 2013-06-26 | 西安爱德华测量设备股份有限公司 | Lead screw nut transmission mechanism for measuring machine |
| CN203534558U (en) * | 2013-09-26 | 2014-04-09 | 海克斯康测量技术(青岛)有限公司 | Ball screw transmission mechanism and three-coordinate measuring machine |
-
2017
- 2017-06-28 CN CN201710507244.2A patent/CN107270847B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4340078A1 (en) * | 1992-11-25 | 1994-07-07 | Nsk Ltd | Ball screw linear guide unit |
| CN201140337Y (en) * | 2007-12-21 | 2008-10-29 | 威海华东数控股份有限公司 | Flexible feed screw apparatus |
| CN201407999Y (en) * | 2009-03-20 | 2010-02-17 | 海克斯康测量技术(青岛)有限公司 | Ball screw transmission connection device of measuring machine and measuring machine with same |
| CN201429414Y (en) * | 2009-07-09 | 2010-03-24 | 曲殿光 | Connecting device of ball screws for transmission of three-coordinate measuring machine |
| CN203023418U (en) * | 2013-01-15 | 2013-06-26 | 西安爱德华测量设备股份有限公司 | Lead screw nut transmission mechanism for measuring machine |
| CN203534558U (en) * | 2013-09-26 | 2014-04-09 | 海克斯康测量技术(青岛)有限公司 | Ball screw transmission mechanism and three-coordinate measuring machine |
Non-Patent Citations (1)
| Title |
|---|
| 一种数控车床进给丝杠的预紧方法;李小飞等;《机械工程师》;20121231(第4期);第129页 * |
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| CN107270847A (en) | 2017-10-20 |
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Effective date of registration: 20220531 Address after: 518000 1st floor, building a, No.8 Huanzhen Road, Digang community, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN LIHE PRECISION EQUIPMENT TECHNOLOGY Co.,Ltd. Address before: 518000 units 1501 and 1502, 15 / F, block C, Baoneng Science Park, Qinghu Industrial Park, Qingxiang Road, Longhua office, Longhua New District, Shenzhen, Guangdong Patentee before: SHENZHEN HUAQING PRECISION TECHNOLOGY Co.,Ltd. |
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