CN103722434A - Installing and positioning structure for ball screw transmission - Google Patents
Installing and positioning structure for ball screw transmission Download PDFInfo
- Publication number
- CN103722434A CN103722434A CN201310613367.6A CN201310613367A CN103722434A CN 103722434 A CN103722434 A CN 103722434A CN 201310613367 A CN201310613367 A CN 201310613367A CN 103722434 A CN103722434 A CN 103722434A
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- China
- Prior art keywords
- ball
- screw
- spacer
- hole
- ball screw
- 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.)
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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
- 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
Abstract
The invention relates to an installing and positioning structure, in particular to an installing and positioning structure for ball screw transmission, and specifically provides an installing and positioning structure applied to ball screw transmission on a cross beam of a vertical lathe. According to the technical scheme, the installing and positioning structure for ball screw transmission comprises a cross beam; one end of the cross beam is provided with a first installing through hole; the other end of the cross beam is provided with a second installing through hole, wherein the second installing through hole is coaxial with the first installing through hole; a rotatable ball screw is arranged inside the cross beam, wherein the ball screw is provided with a first lead screw end and a second lead screw end corresponding to the first lead screw end, the first lead screw end of the ball screw is installed in the first installing through hole, and the second lead screw end is installed in the second installing through hole. The installing and positioning structure for ball screw transmission is compact in structure, capable of improving the stability of ball screw transmission, improve the accuracy of lathe machining, and is safe and reliable.
Description
Technical field
The present invention relates to a kind of installation and positioning structure, especially a kind of ball leading screw driving installation and positioning structure, specifically for the transmission installation and positioning structure of ball screw on vertical lathe crossbeam.
Background technology
In vertical lathe, the drive mechanism of screw mandrel is varied, and whether the precision of crossbeam upper screw rod transmission directly has influence on the machining accuracy of lathe, traditional screw rod transmission is that one end of screw mandrel is connected on feed box, and come transferring power can not meet the machining accuracy of lathe to the structure of screw mandrel with feed box, and ball leading screw driving is also steady not.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of ball leading screw driving installation and positioning structure is provided, its compact conformation, can improve the stability of ball leading screw driving, improves the precision of lathe processing, safe and reliable.
According to technical scheme provided by the invention, described ball leading screw driving installation and positioning structure, comprises crossbeam; One end of described crossbeam is provided with the first installation through hole, and the other end of crossbeam is provided with second of the first installation through hole coaxial line through hole is installed; In crossbeam, be provided with the ball screw that can rotate, described ball screw has the first screw mandrel end and the second screw mandrel end corresponding with described the first screw mandrel end; The first screw mandrel end of ball screw is installed in the first installation through hole, and the second screw mandrel end of ball screw is installed in the second installation through hole.
The first screw mandrel end of described ball screw is connected with the output shaft of drive motors by shaft joint, and drive motors is fixed on crossbeam by electric machine support.
The first screw mandrel end of described ball screw is arranged in the first installation through hole by the first angular contact ball bearing, and the right-hand member of described the first angular contact ball bearing is locked on ball screw by the first accurate nut.
The right-hand member of described the first angular contact ball bearing is provided with the first spacer, the first outside framework oil seal and gland, and the left end of the first angular contact ball bearing is provided with the second spacer and the second outside framework oil seal; The first spacer, the first outside framework oil seal and gland are positioned between the first angular contact ball bearing and the first accurate nut, and gland is fixed on crossbeam, and the first spacer is enclosed within on ball screw and with the first accurate nut and contacts, and the first outside framework oil seal is enclosed within the outer ring of the first spacer; The second spacer is enclosed within on ball screw, and the second outside framework oil seal is enclosed within the outer ring of the second spacer.
The second screw mandrel end of described ball screw is arranged on the second installation through hole by bearing holder (housing, cover) and the second angular contact ball bearing of being positioned at described bearing holder (housing, cover); The second angular contact ball bearing is locked on ball screw by being positioned at the second accurate nut of described the second angular contact ball bearing left end.
Between described the second accurate nut and the second angular contact ball bearing, be provided with the 4th spacer, the 4th spacer is enclosed within on ball screw; The section of the second angular contact ball bearing is provided with the 3rd spacer and the 3rd outside framework oil seal, and the 3rd spacer is enclosed within on ball screw, and the 3rd outside framework oil seal is enclosed within the outer ring of the 3rd spacer and is arranged in the step of bearing holder (housing, cover).
The left part of described bearing holder (housing, cover) is provided with seal closure, and described seal closure is fixed on the end of bearing holder (housing, cover).Between described bearing holder (housing, cover) and crossbeam, be provided with adjusting pad, described adjusting pad is fixed on crossbeam by set bolt.
Advantage of the present invention: the first installation through hole and second is set on crossbeam through hole is installed, the first screw mandrel end of ball screw is arranged in the first installation through hole by the first angular contact ball bearing and the first accurate nut, the second screw mandrel end of ball screw is arranged in the second installation through hole by bearing holder (housing, cover), the second angular contact ball bearing, the second accurate nut, the first screw mandrel end of ball screw is connected with the output shaft of motor by shaft joint, compact conformation, can improve the stability of ball leading screw driving, improve the precision of lathe processing, safe and reliable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Description of reference numerals: 1-electric machine support, 2-motor, 3-shaft joint, 4-the first accurate nut, 5-the first spacer, 6-the first outside framework oil seal, 7-gland, 8-the first angular contact ball bearing, 9-the second spacer, 10-the second outside framework oil seal, 11-crossbeam, 12-ball screw, 13-the 3rd spacer, 14-the 3rd outside framework oil seal, 15-the second angular contact ball bearing, 16-bearing holder (housing, cover), 17-the 4th spacer, 18-the second accurate nut, 19-seal closure, 20-adjusting pad, 21-set bolt, 22-mounting groove, 23-first is installed by through hole and 24-second installs through hole.
The specific embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in Figure 1: in order to make the installation and positioning structure of screw mandrel meet the requirement of vertical lathe machining accuracy, the present invention includes crossbeam 11; One end of described crossbeam 11 is provided with the first installation through hole 23, and the other end of crossbeam 11 is provided with second of the first installation through hole 23 coaxial lines through hole 24 is installed; In crossbeam 11, be provided with the ball screw 12 that can rotate, described ball screw 12 has the first screw mandrel end and the second screw mandrel end corresponding with described the first screw mandrel end; The first screw mandrel end of ball screw 12 is installed in the first installation through hole 23, and the second screw mandrel end of ball screw 12 is installed in the second installation through hole 24.
Particularly, in described crossbeam 11, be provided with mounting groove 22, it is coaxial line that the first installation through hole 23 and the second installation through hole 24, the first installation through holes 23 and the second installation through hole 24 are set on the projection of the two ends of mounting groove 22, guarantees the axiality that ball screw 12 is installed.First installs the right-hand member that through hole 23 is positioned at crossbeam 11, and second installs the left end that through hole 24 is positioned at crossbeam 11.
In order to drive ball screw 12 to rotate, in the embodiment of the present invention, the first screw mandrel end of described ball screw 12 is connected with the output shaft of drive motors 2 by shaft joint 3, and drive motors 2 is fixed on crossbeam 11 by electric machine support 1.Motor 2 is arranged on electric machine support 1, the output shaft of motor 2 is through the axis hole of electric machine support 1, the axis of the extended line of ball screw 12 center lines and motor 2 output shafts is on same straight line, between motor 1 output shaft and ball screw 12, with shaft joint 3, be connected, like this motor 2 just can by shaft joint 3 by power transmission to ball screw 12, to drive the rotation of ball screw 12.
The first screw mandrel end of described ball screw 12 is arranged in the first installation through hole 23 by the first angular contact ball bearing 8, and the right-hand member of described the first angular contact ball bearing 8 is locked on ball screw 12 by the first accurate nut 4.In the embodiment of the present invention, first installs the first angular contact ball bearing 8 of two next-door neighbours of the interior installation of through hole 23.
The left end that the right-hand member of described the first angular contact ball bearing 8 is provided with the first spacer 5, the first outside framework oil seal 6 and gland 7, the first angular contact ball bearings 8 is provided with the second spacer 9 and the second outside framework oil seal 10; The first spacer 5, the first outside framework oil seal 6 and gland 7 are positioned at 4 of the first angular contact ball bearing 8 and the first accurate nuts, gland 7 is fixed on crossbeam 3, the first spacer 5 is enclosed within on ball screw 12 and with the first accurate nut 4 and contacts, and the first outside framework oil seal 6 is enclosed within the outer ring of the first spacer 5; The second spacer 9 is enclosed within on ball screw 12, and the second outside framework oil seal 10 is enclosed within the outer ring of the second spacer 9.
During concrete installation, first of crossbeam 11 right-hand members are installed in through hole 23 and are offered the step of the second outside framework oil seal 10 and the step of installation the first angular contact ball bearing 8 are installed, the second outside framework oil seal 10 is first inserted on ball screw 12, then the first screw mandrel end of ball screw 12 is put into first of crossbeam 11 right-hand members through hole 23 is installed, the second spacer 9 is inserted on ball screw 12, the left side of the second spacer 9 withstands on the step surface place on ball screw 12, then the second outside framework oil seal 10 that is enclosed within ball screw 12 right-hand members is enclosed within on the second spacer 9, the right side of the second outside framework oil seal 10 withstands on the step surface in interior the first installation through hole 23 of crossbeam 11, next two the first angular contact ball bearings 8 that mutually lean are together packed into the first screw mandrel end of ball screw 12, the left side of the first angular contact ball bearing 8 leans in crossbeam 11 on the first step surface of installing in through hole 23 and on the right side of the second spacer 9, then gland 7 is arranged on crossbeam 11 right sides, with screw, be fixed, the left side of gland 7 withstands on the right side of the first angular contact ball bearing 8, next the first spacer 5 is contained in to the first screw mandrel end of ball-screw 12, the left side of the first spacer 5 withstands on the right side of the first angular contact ball bearing 8, the right side of the first spacer 5 holds out against with the first accurate nut 4 being spun on ball screw 12.
The second screw mandrel end of described ball screw 12 is arranged on the second installation through hole 24 by bearing holder (housing, cover) 16 and the second angular contact ball bearing 15 of being positioned at described bearing holder (housing, cover) 16; The second angular contact ball bearing 15 is locked on ball screw 12 by being positioned at the second accurate nut 18 of described the second angular contact ball bearing 15 left ends.
Described the second accurate nut 18 and 15 of the second angular contact ball bearings are provided with the 4th spacer 17, the four spacers 17 and are enclosed within on ball screw 12; The section of the second angular contact ball bearing 15 is provided with the 3rd spacer 13 and the 3rd outside framework oil seal 14, the three spacers 13 are enclosed within on ball screw 12, and the 3rd outside framework oil seal 14 is enclosed within the outer ring of the 3rd spacer 13 and is arranged in the step of bearing holder (housing, cover) 16.
The left part of described bearing holder (housing, cover) 16 is provided with seal closure 19, and described seal closure 19 is fixed on the end of bearing holder (housing, cover) 16.11, described bearing holder (housing, cover) 16 and crossbeam are provided with adjusting pad 20, and described adjusting pad 20 is fixed on crossbeam 11 by set bolt 21.
During concrete installation, bearing holder (housing, cover) 16 is fit into second of crossbeam 11 left ends to be installed in through hole 24, wherein, the place, centre position of bearing holder (housing, cover) 16 also offers through hole, the step that has bearings mounted step and mounting framework oil sealing in through hole, between the step surface of bearing holder (housing, cover) 16 and crossbeam 11 left sides, adjusting pad 20 is installed, adjusting pad 20 is fixed on 16 of crossbeam 11 and bearing holder (housing, cover)s by set bolt 21, the shank portion of set bolt 21 is through in the screwed hole on bearing holder (housing, cover) 16 and the rear screw-in crossbeam of adjusting pad 20 11 left sides, thereby bearing holder (housing, cover) 16 and adjusting pad 20 are fixed on the left side of crossbeam 11.
After bearing holder (housing, cover) 16 is fixed, the 3rd outside framework oil seal 14 is inserted on ball screw 12, then the second screw mandrel end plug of ball screw 12 is entered in the through hole of bearing holder (housing, cover) 16, next the 3rd spacer 13 is enclosed within on ball screw 12, the step surface on ball screw 12 is withstood in the right side of the 3rd spacer 13, then the 3rd outside framework oil seal 14 being enclosed within on ball screw 12 is enclosed within on the 3rd spacer 13, the step surface on bearing holder (housing, cover) 16 is withstood in the left side of the 3rd outside framework oil seal 14, then the second angular contact ball bearing 15 of two next-door neighbours is arranged on ball screw 12, the diameter of axle of the internal diameter of the second angular contact ball bearing 15 and ball screw 12 is the interference fits of basic hole system, the aperture of the external diameter of the second angular contact ball bearing 15 and bearing holder (housing, cover) 16 is the interference fits of basic shaft system, two the second angular contact ball bearings 15 lean together mutually, the right side of the second angular contact ball bearing 15 leans on the left side of the step surface of bearing holder (housing, cover) 16 and the 3rd spacer 13, the left side of the second angular contact ball bearing 15 holds out against with the 4th spacer 17, and the 4th spacer 17 is to hold out against with the second accurate nut 18 being spun on ball screw 12, finally seal closure 19 is arranged on the left side of bearing holder (housing, cover) 16 and is screwed, whole seal closure 19 covers the parts of projecting shaft bearing sleeve 16.
The first installation through hole 23 and second is set on crossbeam 11 of the present invention through hole 24 is installed, the first screw mandrel end of ball screw 12 is arranged in the first installation through hole 23 by the first angular contact ball bearing 8 and the first accurate nut 4, the second screw mandrel end of ball screw 12 is arranged in the second installation through hole 24 by bearing holder (housing, cover) 16, the second angular contact ball bearing 15, the second accurate nut 18, the first screw mandrel end of ball screw 12 is connected with the output shaft of motor 2 by shaft joint 3, compact conformation, can improve the stability of ball leading screw driving, improve the precision of lathe processing, safe and reliable.
Claims (8)
1. a ball leading screw driving installation and positioning structure, comprises crossbeam (11); It is characterized in that: one end of described crossbeam (11) is provided with the first installation through hole (23), the other end of crossbeam (11) is provided with second of the first installation through hole (23) coaxial line through hole (24) is installed; In crossbeam (11), be provided with the ball screw (12) that can rotate, described ball screw (12) has the first screw mandrel end and the second screw mandrel end corresponding with described the first screw mandrel end; The first screw mandrel end of ball screw (12) is installed in the first installation through hole (23), and the second screw mandrel end of ball screw (12) is installed in the second installation through hole (24).
2. ball leading screw driving installation and positioning structure according to claim 1, it is characterized in that: the first screw mandrel end of described ball screw (12) is connected with the output shaft of drive motors (2) by shaft joint (3), and drive motors (2) is fixed on crossbeam (11) by electric machine support (1).
3. ball leading screw driving installation and positioning structure according to claim 1, it is characterized in that: the first screw mandrel end of described ball screw (12) is arranged in the first installation through hole (23) by the first angular contact ball bearing (8), and the right-hand member of described the first angular contact ball bearing (8) is locked on ball screw (12) by the first accurate nut (4).
4. ball leading screw driving installation and positioning structure according to claim 3, it is characterized in that: the right-hand member of described the first angular contact ball bearing (8) is provided with the first spacer (5), the first outside framework oil seal (6) and gland (7), the left end of the first angular contact ball bearing (8) is provided with the second spacer (9) and the second outside framework oil seal (10); The first spacer (5), the first outside framework oil seal (6) and gland (7) are positioned between the first angular contact ball bearing (8) and the first accurate nut (4), gland (7) is fixed on crossbeam (3), the first spacer (5) is enclosed within ball screw (12) above and contacts with the first accurate nut (4), and the first outside framework oil seal (6) is enclosed within the outer ring of the first spacer (5); It is upper that the second spacer (9) is enclosed within ball screw (12), and the second outside framework oil seal (10) is enclosed within the outer ring of the second spacer (9).
5. ball leading screw driving installation and positioning structure according to claim 1, is characterized in that: the second screw mandrel end of described ball screw (12) is arranged on the second installation through hole (24) by bearing holder (housing, cover) (16) and the second angular contact ball bearing (15) of being positioned at described bearing holder (housing, cover) (16); The second angular contact ball bearing (15) is locked on ball screw (12) by being positioned at second accurate nut (18) of described the second angular contact ball bearing (15) left end.
6. ball leading screw driving installation and positioning structure according to claim 5, is characterized in that: between described the second accurate nut (18) and the second angular contact ball bearing (15), be provided with the 4th spacer (17), the 4th spacer (17) is enclosed within on ball screw (12); The section of the second angular contact ball bearing (15) is provided with the 3rd spacer (13) and the 3rd outside framework oil seal (14), it is upper that the 3rd spacer (13) is enclosed within ball screw (12), and the 3rd outside framework oil seal (14) is enclosed within the outer ring of the 3rd spacer (13) and is arranged in the step of bearing holder (housing, cover) (16).
7. ball leading screw driving installation and positioning structure according to claim 5, is characterized in that: the left part of described bearing holder (housing, cover) (16) is provided with seal closure (19), and described seal closure (19) is fixed on the end of bearing holder (housing, cover) (16).
8. ball leading screw driving installation and positioning structure according to claim 5, is characterized in that: between described bearing holder (housing, cover) (16) and crossbeam (11), be provided with adjusting pad (20), described adjusting pad (20) is fixed on crossbeam (11) by set bolt (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310613367.6A CN103722434A (en) | 2013-11-26 | 2013-11-26 | Installing and positioning structure for ball screw transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310613367.6A CN103722434A (en) | 2013-11-26 | 2013-11-26 | Installing and positioning structure for ball screw transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103722434A true CN103722434A (en) | 2014-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310613367.6A Pending CN103722434A (en) | 2013-11-26 | 2013-11-26 | Installing and positioning structure for ball screw transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103722434A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817940A (en) * | 2016-05-24 | 2016-08-03 | 深圳市创世纪机械有限公司 | Transmission assembly and numerical control machine tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08118199A (en) * | 1994-10-24 | 1996-05-14 | Makino Milling Mach Co Ltd | Feeder for machine tool |
| JPH11114746A (en) * | 1997-10-15 | 1999-04-27 | Okuma Corp | Tension variable device of feed screw |
| CN201792243U (en) * | 2010-09-09 | 2011-04-13 | 北京工研精机股份有限公司 | Lead screw fixing/semi-fixing support structure of precise digital control machine tool |
| CN202137625U (en) * | 2011-01-28 | 2012-02-08 | 纽威数控装备（苏州）有限公司 | Lead screw prestretching device |
| CN102862085A (en) * | 2012-10-08 | 2013-01-09 | 江苏环洋组合机床有限公司 | Ball screw driving structure for numerically-controlled machine tool |
| CN102922359A (en) * | 2012-11-07 | 2013-02-13 | 无锡京华重工装备制造有限公司 | Feeding structure of numerical control cutter rest of vertical lathe |
| CN103158025A (en) * | 2013-03-29 | 2013-06-19 | 西安北村精密机械有限公司 | Bearing combination support structure for rolling ball lead screw support end |
| CN203542198U (en) * | 2013-11-26 | 2014-04-16 | 无锡京华重工装备制造有限公司 | Ball-screw transmission installation locating structure |
-
2013
- 2013-11-26 CN CN201310613367.6A patent/CN103722434A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08118199A (en) * | 1994-10-24 | 1996-05-14 | Makino Milling Mach Co Ltd | Feeder for machine tool |
| JPH11114746A (en) * | 1997-10-15 | 1999-04-27 | Okuma Corp | Tension variable device of feed screw |
| CN201792243U (en) * | 2010-09-09 | 2011-04-13 | 北京工研精机股份有限公司 | Lead screw fixing/semi-fixing support structure of precise digital control machine tool |
| CN202137625U (en) * | 2011-01-28 | 2012-02-08 | 纽威数控装备（苏州）有限公司 | Lead screw prestretching device |
| CN102862085A (en) * | 2012-10-08 | 2013-01-09 | 江苏环洋组合机床有限公司 | Ball screw driving structure for numerically-controlled machine tool |
| CN102922359A (en) * | 2012-11-07 | 2013-02-13 | 无锡京华重工装备制造有限公司 | Feeding structure of numerical control cutter rest of vertical lathe |
| CN103158025A (en) * | 2013-03-29 | 2013-06-19 | 西安北村精密机械有限公司 | Bearing combination support structure for rolling ball lead screw support end |
| CN203542198U (en) * | 2013-11-26 | 2014-04-16 | 无锡京华重工装备制造有限公司 | Ball-screw transmission installation locating structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817940A (en) * | 2016-05-24 | 2016-08-03 | 深圳市创世纪机械有限公司 | Transmission assembly and numerical control machine tool |
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Application publication date: 20140416 |
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