CN106312595A - Lead screw supporting structure and precise pre-stretching method thereof - Google Patents
Lead screw supporting structure and precise pre-stretching method thereof Download PDFInfo
- Publication number
- CN106312595A CN106312595A CN201610942883.7A CN201610942883A CN106312595A CN 106312595 A CN106312595 A CN 106312595A CN 201610942883 A CN201610942883 A CN 201610942883A CN 106312595 A CN106312595 A CN 106312595A
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- Prior art keywords
- leading screw
- bearing
- supporting construction
- left end
- hand member
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- 238000000034 method Methods 0.000 title claims description 8
- 230000000694 effects Effects 0.000 claims abstract description 4
- 238000010276 construction Methods 0.000 claims description 27
- 239000011324 bead Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 4
- 230000008859 change Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/72—Auxiliary arrangements; Interconnections between auxiliary tables and movable machine elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
- B23Q5/404—Screw bearings therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a lead screw supporting structure. The structure comprises a lead screw, the position, at the left end of the lead screw, of the supporting structure comprises a left bearing set, a left bearing pedestal and a bearing box movably arranged between the left bearing set and the left bearing pedestal, the outer wall of the left end of the bearing box is provided with a step face, a gap is formed between the step face and the left end face of the left bearing pedestal, an adjusting bolt is arranged in the bearing box, the adjusting bolt penetrates the bearing box from left to right, and a flat head at the right end abuts against the left end face of the bearing pedestal; the structure further comprises an adjusting gasket placed in the gap, the right end of the left bearing set is positioned through a table shoulder in the right end of the bearing box, the inner ring of the left end of the left bearing set is positioned through a left shaft sleeve and a left locking nut on the lead screw, and the outer ring of the left end of the left bearing set is fixedly connected with the bearing box through a left flange plate; a supporting structure in a manner type is adopted as the supporting structure at the right end of the lead screw. The supporting structure has the beneficial effects that precise pre-stretching of the lead screw can be achieved by controlling the thickness of the adjusting gasket, mounting and debugging are convenient, and the stretching effect is reliable.
Description
Technical field
The present invention relates to Digit Control Machine Tool field, particularly a kind of leading screw supporting construction and accurately prestretching.
Background technology
At present, XYZ feed shaft many employings servomotor of domestic and international most of the advanced CNC drives ball-screw
Mode or linear motor direct drive feed shaft retreat mode.
The shortcomings such as have that cost is high, caloric value is big due to linear electric motors and requirement of shelter is high, uses face the narrowest,
Therefore more than 95% is all the mode of driven by servomotor ball-screw using advantage of lower cost.But this feeding mode
Have that feeding rigidity is relatively low, leading screw can be caused the problems such as positioning precision reduction by thermal stretching.
In order to solve problem above, the countermeasure of employing is that leading screw carries out prestretched, i.e. when processing ball-screw,
Make its pitch be slightly less than nominal value, during assembling, leading screw is carried out prestretched so that it is pitch reaches nominal value, so, when leading screw exists
When being heated in work, the prestretching stress in leading screw compensate for thermal stress during work, both can reduce thermal stretching to positioning precision
Impact, the Feed Rigity of leading screw can be improved again.
Currently for needing to carry out the leading screw of prestretched, the general method used is that one end is fixed, other end locking screw
Female adjustment prestretched amount, the degree that screws of locking nut just determines the prestretched amount of leading screw.But locking nut easily loosens, lead
Cause leading screw prestretched amount and there will be change, thus cause leading screw precision low.Additionally, will be to leading screw during Digit Control Machine Tool is debugged
Prestretched repeatedly, is easy between locking nut and leading screw stripped thread phenomenon, and stripped thread phenomenon once occurs, the most then change lock
Jack panel, heavy then leading screw is scrapped, and causes economic loss.
Summary of the invention
The goal of the invention of the present invention is: for the problem of above-mentioned existence, it is provided that a kind of screw mandrel supporting construction and accurately
Prestretching, to solve leading screw precision that pre existing drawing process causes because can not accurately control leading screw prestretched amount the most also
Locking nut and the leading screw stripped thread problem such as cause that leading screw is scrapped when needing time-consuming repeatedly pretension to adjust and repeat pretension.
The technical solution used in the present invention is such that
A kind of leading screw supporting construction, including leading screw, the supporting construction of leading screw left end uses left bearing group and left shaft holder and work
The dynamic bearing box being disposed there between, bearing box left end outer wall has step surface and between this step surface and left shaft holder left side
Forming gap, be provided with regulation bolt in described bearing box, regulation bolt is from left to right through bearing box and by the tack top of right-hand member
On left shaft holder left side, also include that the adjustment pad for being placed in gap, described left bearing group right-hand member pass through bearing
Box right-hand member inner circular bead positions, and left end inner ring is positioned by the left axle sleeve on leading screw and left locking nut, and left end outer ring is by a left side
Ring flange is fixing with bearing box to be connected, and the supporting construction of described leading screw right-hand member uses the supporting construction of bearing type.
As preferably, the supporting construction of described leading screw right-hand member uses right bearing group and right bearing seat, described right bearing seat group
Left end is positioned by right bearing seat left end inner circular bead, and right-hand member inner ring is positioned by the right axle sleeve on leading screw and right locking nut,
Right-hand member outer ring is connected by right ring flange and right bearing seat are fixing.
Further preferably, described left bearing group is made up of two back-to-back installations of left comer contact ball bearing, described right bearing
Group is made up of two back-to-back installations of right corner contact ball bearing.
As preferably, right ring flange is fixed on right axle by interior hexagonal tight fixed bolt by described right bearing seat group right-hand member outer ring
Bearing.
As preferably, described leading screw right-hand member is connected with servomotor outfan by shaft coupling.
As preferably, described adjustment pad is two panels combined semi circular gasket.The present invention uses at bearing box and bearing
The method increasing adjustment pad between Zuo makes bearing box and left shaft holder realize, in the most accurately prestretched, wherein adjusting pad
Thickness equal to by leading screw prestretched amount, bearing self play, leading screw deadweight this three's sum of sagging horizontal shortening amount.This
After bright supporting construction installs, due to adjust pad thickness be certain, therefore it is ensured that under various operating modes leading screw pre-
Amount of tension, all without change, by controlling to adjust the thickness and precision of pad, can be achieved with the accurate prestretched to leading screw.Set
Count into two panels combined semi circular gasket, can conveniently be placed and taken out, and can guarantee that uniform force in gap, make adjustment as far as possible
Pad stands intact.
The leading screw supporting construction utilizing technique scheme to be provided leading screw is carried out the method for accurate prestretched include with
Lower step:
1), install supporting construction at two ends, leading screw left and right and left shaft holder and right bearing seat are fixed；
2), the regulation bolt that turns in bearing box, between step surface and the left shaft holder left side of bearing box left end outer wall between
Gap strengthens, and owing to left shaft holder is fixed, bearing box is to driving left bearing group to be moved to the left, at left axle sleeve and left locking nut
Under power transmission effect, drive leading screw left end to be moved to the left thus realize the prestretched to leading screw；
3), after leading screw left end displacement reaches setting value, stop turning regulation bolt；
4), putting into thickness in the gap between the step surface and left shaft holder left side of bearing box left end outer wall is prestretched amount
Adjustment pad, thus complete the prestretched to leading screw.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, utilizing the thickness controlling to adjust pad to realize the accurate prestretched to leading screw, installation and debugging are convenient；
2, adjust after spacer thickness determines, prestretched amount changes the most never again, it is to avoid it is pre-that traditional approach utilizes nut to realize
Stretching, because nut easily loosening, nut rolling way deformation causes stretching inaccurate defect；
3, not repeating pretension because pretightning force change causes threads of lead screw to be easily damaged and then and the problem that causes leading screw to be scrapped.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention.
The left locking nut of labelling in figure: 1-；2-left axle sleeve；3-left flange plate；4-bearing box；5-adjusts pad；6-left comer
Contact ball bearing；7-left shaft holder；8-leading screw；9-right bearing seat；10-right corner contact ball bearing；11-right axle sleeve；The right flange of 12-
Dish；Hexagonal tight fixed bolt in 13-；The right locking nut of 14-；15-shaft coupling；16-servomotor, 17-regulates bolt.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the present invention is described in detail.
Embodiment 1:
As it is shown in figure 1, a kind of leading screw supporting construction, including leading screw 8, the supporting construction of leading screw 8 left end uses left bearing group and a left side
Bearing block 7 and be movably arranged on bearing box 4 therebetween, bearing box 4 left end outer wall has step surface and this step surface with left
Forming gap between bearing block 7 left side, be provided with regulation bolt 17 in described bearing box 4, regulation bolt 17 from left to right passes
The tack of right-hand member is also withstood on left shaft holder 7 left side by bearing box 4, also includes the adjustment pad 5 for being placed in gap,
Described left bearing group right-hand member is positioned by bearing box 4 right-hand member inner circular bead, and left end inner ring is by the left axle sleeve 2 on leading screw 8 and a left side
Locking nut 1 positions, and left end outer ring is connected by left flange plate 3 is fixing with bearing box 4, the supporting construction of described leading screw 8 right-hand member
Using right bearing group and right bearing seat 9, described right bearing seat group left end is positioned by right bearing seat 9 left end inner circular bead, right-hand member
Inner ring is positioned by the right axle sleeve 11 on leading screw 8 and right locking nut 14, and right-hand member outer ring is by right ring flange 12 and right bearing seat 9
Fixing connection.
Described left bearing group is made up of two back-to-back installations of left comer contact ball bearing 6, and described right bearing group is by two right sides
Angular contact ball bearing 10 is back-to-back installs composition.
Right ring flange 12 is fixed on right bearing seat by interior hexagonal tight fixed bolt 13 by described right bearing seat group right-hand member outer ring
9。
Described adjustment pad 5 is two panels combined semi circular gasket.
Embodiment 2:
Utilize the method that leading screw supporting construction described in claim embodiment 1 carries out accurate prestretched to leading screw, including following step
Rapid:
1), install supporting construction at leading screw about 8 two ends and left shaft holder 7 and right bearing seat 9 are fixed；
2), the regulation bolt 17 that turns in bearing box 4, between step surface and left shaft holder 7 left side of bearing box 4 left end outer wall
Gap strengthen, owing to left shaft holder 7 is fixed, bearing box 4 to drive left bearing group be moved to the left, at left axle sleeve 2 and left lock
Under the power transmission effect of jack panel 1, drive leading screw 8 left end to be moved to the left thus realize the prestretched to leading screw 8；
3), after leading screw 8 left end displacement reaches setting value, stop turning regulation bolt 17；
4), putting into thickness in the gap between the step surface and left shaft holder 7 left side of bearing box 4 left end outer wall is prestretched
The adjustment pad 5 of amount, thus complete the prestretched to leading screw 8.
Claims (7)
1. a leading screw supporting construction, including leading screw (8), it is characterised in that: the supporting construction of leading screw (8) left end uses left bearing
Group and left shaft holder (7) and be movably arranged on bearing box (4) therebetween, bearing box (4) left end outer wall have step surface and
Form gap between this step surface and left shaft holder (7) left side, described bearing box (4) is provided with regulation bolt (17), regulation
Bolt (17) from left to right through bearing box (4) the tack of right-hand member is withstood on left shaft holder (7) left side, also include for
The adjustment pad (5) being placed in gap, described left bearing group right-hand member is positioned by bearing box (4) right-hand member inner circular bead, left end
Inner ring is positioned by the left axle sleeve (2) on leading screw (8) and left locking nut (1), and left flange plate (3) and bearing are passed through in left end outer ring
Box (4) is fixing to be connected, and the supporting construction of described leading screw (8) right-hand member uses the supporting construction of bearing type.
A kind of leading screw supporting construction the most according to claim 1, it is characterised in that: the support knot of described leading screw (8) right-hand member
Structure uses right bearing group and right bearing seat (9), and described right bearing seat group left end is fixed by right bearing seat (9) left end inner circular bead
Position, right-hand member inner ring is positioned by the right axle sleeve (11) on leading screw (8) and right locking nut (14), and right ring flange is passed through in right-hand member outer ring
(12) fixing with right bearing seat (9) it is connected.
A kind of leading screw supporting construction the most according to claim 2, it is characterised in that: described left bearing group is connect by two left comer
Touching back-to-back installation of ball bearing (6) to form, described right bearing group is made up of two back-to-back installations of right corner contact ball bearing (10).
A kind of leading screw supporting construction the most according to claim 2, it is characterised in that: described right bearing seat group right-hand member outer ring leads to
In crossing, right ring flange (12) is fixed on right bearing seat (9) by hexagonal tight fixed bolt (13).
A kind of leading screw supporting construction the most according to claim 1, it is characterised in that: described leading screw (8) right-hand member passes through shaft coupling
Device (15) is connected with servomotor (16) outfan.
A kind of leading screw supporting construction the most according to claim 1, it is characterised in that: described adjustment pad (5) is two panels group
Box-like semicircle pad.
7. utilize the method that leading screw supporting construction described in claim 1-6 any claim carries out accurate prestretched to leading screw,
It is characterized in that comprising the following steps:
1), install supporting construction at leading screw (8) two ends, left and right and left shaft holder (7) and right bearing seat (9) are fixed；
2), the regulation bolt (17) that turns in bearing box (4), the step surface of bearing box (4) left end outer wall is left with left shaft holder (7)
Gap between end face is strengthened, and owing to left shaft holder (7) is fixed, bearing box (4) is moved to the left, on a left side to drive left bearing group
Under the power transmission effect of axle sleeve (2) and left locking nut (1), drive leading screw (8) left end to be moved to the left thus realize leading screw (8)
Prestretched；
3), after leading screw (8) left end displacement reaches setting value, stop turning regulation bolt (17)；
4) it is pre-for, putting into thickness in the gap between the step surface and left shaft holder (7) left side of bearing box (4) left end outer wall
The adjustment pad (5) of amount of tension, thus complete the prestretched to leading screw (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610942883.7A CN106312595A (en) | 2016-11-02 | 2016-11-02 | Lead screw supporting structure and precise pre-stretching method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610942883.7A CN106312595A (en) | 2016-11-02 | 2016-11-02 | Lead screw supporting structure and precise pre-stretching method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106312595A true CN106312595A (en) | 2017-01-11 |
Family
ID=57818094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610942883.7A Pending CN106312595A (en) | 2016-11-02 | 2016-11-02 | Lead screw supporting structure and precise pre-stretching method thereof |
Country Status (1)
| Country | Link |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975963A (en) * | 2017-06-06 | 2017-07-25 | 中山市宇洋数控机械有限公司 | A kind of Digit Control Machine Tool screw mandrel pretension fixing device |
| CN107420504A (en) * | 2017-08-29 | 2017-12-01 | 万安衡源智能装备有限公司 | Leading screw pre-tension method and the device for leading screw pre-tension method |
| CN107782618A (en) * | 2017-09-19 | 2018-03-09 | 中北大学 | A kind of product tension test Experiments of Machanics equipment |
| CN108581582A (en) * | 2018-06-25 | 2018-09-28 | 中山市捷上同程数控机床有限公司 | A kind of lead screw pretension fixing device |
| CN108581585A (en) * | 2018-07-28 | 2018-09-28 | 重庆宏钢数控机床有限公司 | Stretching device for leading screw pre-stretching |
| CN108581584A (en) * | 2018-07-28 | 2018-09-28 | 重庆宏钢数控机床有限公司 | The steel bushing combination unit being pre-stretched convenient for leading screw |
| CN108581583A (en) * | 2018-07-28 | 2018-09-28 | 重庆宏钢数控机床有限公司 | Ball-screw pre-stretching amount controllable adjustment device |
| CN108788879A (en) * | 2018-07-28 | 2018-11-13 | 重庆宏钢数控机床有限公司 | Machine tool lead screw floating pre-stretching device |
| CN108907708A (en) * | 2018-08-16 | 2018-11-30 | 西安巨浪精密机械有限公司 | A kind of flexure pre-stretching mounting process |
| CN113478273A (en) * | 2021-05-25 | 2021-10-08 | 津上精密机床（浙江）有限公司 | Mounting structure and method for reducing thermal deflection of turret machine |
| CN113927350A (en) * | 2021-11-18 | 2022-01-14 | 江苏大卫精工科技有限公司 | Screw rod supporting bearing installation assembly with integrally-stretched bearing sleeve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0106244B1 (en) * | 1982-10-02 | 1986-06-04 | Müller, Arnold | Linear movement for machine tool |
| CN101602172A (en) * | 2009-04-21 | 2009-12-16 | 上海克迈特精密机床有限公司 | A kind of leading screw supporting construction and adopt the leading screw prestretched method of this supporting construction |
| CN102166720A (en) * | 2011-04-30 | 2011-08-31 | 山东威能数字机器有限公司 | Structural support of ball screw assembly |
| CN103072035A (en) * | 2013-01-24 | 2013-05-01 | 无锡市欧泰数控机床有限公司 | Pre-stretching locking mechanism for ball screw |
| CN105479237A (en) * | 2016-01-18 | 2016-04-13 | 南通国盛机电集团有限公司 | Lead screw prestretching structure |
| CN205363398U (en) * | 2015-12-24 | 2016-07-06 | 重庆威诺克智能装备股份有限公司 | Ball is stretching device in advance |
-
2016
- 2016-11-02 CN CN201610942883.7A patent/CN106312595A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0106244B1 (en) * | 1982-10-02 | 1986-06-04 | Müller, Arnold | Linear movement for machine tool |
| CN101602172A (en) * | 2009-04-21 | 2009-12-16 | 上海克迈特精密机床有限公司 | A kind of leading screw supporting construction and adopt the leading screw prestretched method of this supporting construction |
| CN102166720A (en) * | 2011-04-30 | 2011-08-31 | 山东威能数字机器有限公司 | Structural support of ball screw assembly |
| CN103072035A (en) * | 2013-01-24 | 2013-05-01 | 无锡市欧泰数控机床有限公司 | Pre-stretching locking mechanism for ball screw |
| CN205363398U (en) * | 2015-12-24 | 2016-07-06 | 重庆威诺克智能装备股份有限公司 | Ball is stretching device in advance |
| CN105479237A (en) * | 2016-01-18 | 2016-04-13 | 南通国盛机电集团有限公司 | Lead screw prestretching structure |
Non-Patent Citations (2)
| Title |
|---|
| 刘瑞已: "《现代数控机床 第2版》", 31 December 2011, 西安电子科技大学出版社 * |
| 张洪喜，马喜法: "《钳工 高级》", 31 March 2011, 机械工业出版社 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975963A (en) * | 2017-06-06 | 2017-07-25 | 中山市宇洋数控机械有限公司 | A kind of Digit Control Machine Tool screw mandrel pretension fixing device |
| CN107420504A (en) * | 2017-08-29 | 2017-12-01 | 万安衡源智能装备有限公司 | Leading screw pre-tension method and the device for leading screw pre-tension method |
| CN107782618A (en) * | 2017-09-19 | 2018-03-09 | 中北大学 | A kind of product tension test Experiments of Machanics equipment |
| CN108581582A (en) * | 2018-06-25 | 2018-09-28 | 中山市捷上同程数控机床有限公司 | A kind of lead screw pretension fixing device |
| CN108581585A (en) * | 2018-07-28 | 2018-09-28 | 重庆宏钢数控机床有限公司 | Stretching device for leading screw pre-stretching |
| CN108581584A (en) * | 2018-07-28 | 2018-09-28 | 重庆宏钢数控机床有限公司 | The steel bushing combination unit being pre-stretched convenient for leading screw |
| CN108581583A (en) * | 2018-07-28 | 2018-09-28 | 重庆宏钢数控机床有限公司 | Ball-screw pre-stretching amount controllable adjustment device |
| CN108788879A (en) * | 2018-07-28 | 2018-11-13 | 重庆宏钢数控机床有限公司 | Machine tool lead screw floating pre-stretching device |
| CN108581583B (en) * | 2018-07-28 | 2019-08-20 | 重庆宏钢数控机床有限公司 | Ball-screw pre-stretching amount controllable adjustment device |
| CN108907708A (en) * | 2018-08-16 | 2018-11-30 | 西安巨浪精密机械有限公司 | A kind of flexure pre-stretching mounting process |
| CN113478273A (en) * | 2021-05-25 | 2021-10-08 | 津上精密机床（浙江）有限公司 | Mounting structure and method for reducing thermal deflection of turret machine |
| CN113927350A (en) * | 2021-11-18 | 2022-01-14 | 江苏大卫精工科技有限公司 | Screw rod supporting bearing installation assembly with integrally-stretched bearing sleeve |
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Address after: 643000 Huidong learning street 180, Zigong, Sichuan Applicant after: Sichuan University of Science & Engineering Address before: 643000 Huidong learning street 180, Zigong, Sichuan Applicant before: Sichuan University of Science & Engineering |
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Application publication date: 20170111 |