CN201283506Y - Vertical type numerical control machining center triaxial-directional transmission lead screw assembly device - Google Patents
Vertical type numerical control machining center triaxial-directional transmission lead screw assembly device Download PDFInfo
- Publication number
- CN201283506Y CN201283506Y CNU2008201455998U CN200820145599U CN201283506Y CN 201283506 Y CN201283506 Y CN 201283506Y CN U2008201455998 U CNU2008201455998 U CN U2008201455998U CN 200820145599 U CN200820145599 U CN 200820145599U CN 201283506 Y CN201283506 Y CN 201283506Y
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- Prior art keywords
- tail end
- bearing
- seat
- screw
- ball screw
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- Expired - Fee Related
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Abstract
The utility model relates to a milling machine, in particular to an assembly device of three axial driving leading screws of a vertical numerical control processing center, the milling machine is characterized in that since a deep groove ball bearing is arranged between two ball leading screw special-purpose bearings, the action point generated by the ball leading screw special-purpose bearing contacting angle extends outwards, thereby realizing the aims of the rotating precision of the ball leading screw, the axial rigidity, restraining the operation vibration of a leading screw shaft and noise, preventing the slide of a rolling body, preventing the installing compression damages of steel balls in a bearing roller path and accurately locating the position of the rolling body with very low cost, simultaneously, the milling machine can prevent the errors of the assembly better, a tail end seat sleeve with an inner and an external screw caps is sleeved in the tail end seat, two ball leading screw special-purpose bearings are arranged in the tail end seat sleeve, the inner screw cap of the tail end sleeve tightly presses an outer ring of the bearing, then a mattress protector is sleeved, and a fastening screw cap tightly presses an inner ring of the bearing, and the external screw cap of the tail end seat is tightly screwed, which enables the tail end seat sleeve to move in the axial direction in the tail end seat, and the ball leading screw generates the axial preloading.
Description
Technical field
The utility model relates to milling machine, particularly a kind of vertical numerical control machining center three axial drive lead screw assembly apparatus.
Background technology
Existing numerical control machining center is before and after realizing, about, up and down during three axially-movables, be to constitute by every single axle motion, its structure is architecture basics with the pedestal, the motor cabinet parts are fixed on the pedestal front end, the tail end base member is fixed on the pedestal rear end, settle screw component between motor cabinet parts and the tail end base member, wherein screw component is made up of screw mandrel and screw mandrel nut, the locking of screw mandrel nut is moved part, be moved the part frame on the track of pedestal, the motor of motor cabinet drives the positive and negative rotation of screw mandrel by shaft joint and makes and be moved part and move forward and backward between motor cabinet and tail end seat, device ball screw special bearing in the motor cabinet, bearing cap is pressed the compression axis bearing outer-ring, the ball screw front end is inserted in bearing inner race, put cushion cover and compress bearing inner race with fastening nut, make the function of ball screw by bearing, reach axially to reach and radially all can bear load and rigidity, device ball screw special bearing in the tail end seat, bearing cap compression axis bearing outer-ring, the ball screw tail end is inserted in and keeps prestretching amount spacing with bearing inner race, put cushion cover and compress bearing inner race with quantitative torsion, kept prestretching amount spacing before this moment and eliminated, make ball screw produce axial preload by packing with fastening nut.This structure is because the fixed hole position of motor cabinet on the pedestal and tail end seat has the accurate tolerance in position on machining, and all spare parts have inevitable length dimension tolerance.But each single-shaft configuration required precision of numerical control machining center must reach 0.005mm, the error that this reconditioning length that just makes said structure must adjust the cushion cover in the tail end seat is revised accurate tolerance in position and spare part on machining length dimension tolerance is produced satisfies the required precision of 0.005mm, so the loaded down with trivial details difficulty of operation.
The utility model content
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art and the simple and easy sharp work of a kind of energy is provided and prolongs the vertical numerical control machining center three axial drive lead screw assembly apparatus in machine tool accuracy life-span.
The purpose of this utility model is achieved by the following technical solution: vertical numerical control machining center three axial drive lead screw assembly apparatus, comprise pedestal, the motor cabinet of fixed pedestal front end, be fixed on the tail end seat of pedestal rear end and be fixed on pedestal and the track between motor cabinet and tail end seat, between motor cabinet and the tail end seat screw component is set, wherein screw component is made up of screw mandrel and screw mandrel nut, the locking of screw mandrel nut is moved part, be moved on the track that part is enclosed within pedestal, the motor of motor cabinet is connected with ball screw by shaft coupling, two ball screw special bearings are housed in the motor cabinet, bearing cap is pressed the compression axis bearing outer-ring, the ball screw axle head is inserted in the bearing inner race in the motor cabinet, put cushion cover again and compress bearing inner race, it is characterized in that: the zanjon ball bearing is installed between two ball screw special bearings with fastening nut.The utility model is owing to be equipped with the zanjon ball bearing between two ball screw special bearings, the application point that ball screw special bearing contact angle is produced extends outward, like this to the running accuracy of ball screw, axial stiffness, the running of inhibition screw axis vibration and noise, prevent rolling element slip, prevent that the installation of steel ball weighs wounded in the raceway, and the position of accurate positioning and rolling body, all achieve the goal with extremely low cost, can take precautions against to assemble simultaneously and slip up;
Suit has the tail end cover for seat of inside and outside nut in the tail end seat, two ball screw special bearings of installing in the tail end cover for seat, by nut compressing bearing outer ring in the tail end cover for seat, ball screw bearing inner race and ball screw tail end axle head connect airtight, put cushion cover and compress bearing inner race with fastening nut, tail end cover for seat exterior nut cap screws, and makes the axial displacement in the tail end seat of tail end cover for seat, allows ball screw produce axial preload.
Between tail end cover for seat and tail end seat, be provided with greater than 0mm less than the antero posterior axis of 5mm to free displacement degree, fill part and satisfy the motor cabinet on the pedestal and the accurate tolerance in fixed hole position machined position of tail end seat, and the length dimension tolerance of all spare parts.Just need not to adjust reconditioning cushion cover length, can simplify operation fast.Compared with prior art have: operation simple reaches machine tool accuracy and life-span time limit advantage easy to maintenance fast.
Description of drawings
Fig. 1 is the utility model perspective view
Fig. 2 is the utility model Figure 1A portion enlarged diagram
Fig. 3 is the utility model Figure 1B portion enlarged diagram
The specific embodiment
In conjunction with the accompanying drawings, below the utility model is done further detailed elaboration:
Referring to Fig. 1, vertical numerical control machining center three axial drive lead screw assembly apparatus, comprise pedestal 1, be fixed on pedestal 1 front end motor cabinet 2, be fixed on the tail end seat 3 of pedestal 1 rear end and be fixed on pedestal 1 and the track 4 between motor cabinet 2 and tail end seat, between motor cabinet 2 and the tail end seat 3 screw component is set, wherein screw component is made up of ball screw 5 and screw mandrel nut 6,6 lockings of screw mandrel nut are moved part 7, be moved on the track 4 that part 7 is enclosed within pedestal 1, referring to Fig. 2 and Fig. 3, the motor of motor cabinet is connected with ball screw 5 by shaft coupling 8.
Referring to Fig. 2 and Fig. 3, motor cabinet 2 is equipped with two ball screw special bearings 9, and bearing gland 10 compresses bearing 9 outer rings, and ball screw 5 is inserted in bearing inner race, puts cushion cover 11 usefulness fastening nuts 12 again and compresses bearing inner race.For running accuracy, axial stiffness, the running of inhibition screw axis vibration and the noise, the slip that prevents rolling element that improve ball screw 5, prevent that the installation of steel ball weighs wounded in the raceway, and the position of accurate positioning and rolling body, zanjon ball bearing 13 just is installed between two ball screw bearings 9.
Referring to Fig. 3, suit has the tail end cover for seat 14 of inside and outside nut in tail end seat 3, two ball screw special bearings 9 of installing in the tail end cover for seat, screw in the compression axis bearing outer-ring by nut in the tail end cover for seat 15, ball screw special bearing 9 inner rings and ball screw 5 tailing axle end fluid-tight engagement, put cushion cover 11 usefulness fastening nuts 16 and tighten up bearing inner race, tail end cover for seat 14 has in tail end seat 3 greater than 0mm less than the antero posterior axis of 5mm to free displacement degree.Screw in tail end cover for seat external screw teeth by tail end cover for seat exterior nut cap 17 and be close to tail end seat end face, screw the stay bolt screw mandrel to reach ball screw generation axial preload with deciding torsion.
The above only is the preferred embodiment of utility model, not in order to last restriction utility model, all any modifications of being done within spirit of the present utility model and principle, is equal to and replaces and improvement etc., all should be included in the protection domain of the present utility model.
Claims (2)
1, vertical numerical control machining center three axial drive lead screw assembly apparatus, comprise pedestal, the motor cabinet of fixed pedestal front end, be fixed on the tail end seat of pedestal rear end and be fixed on pedestal and the track between motor cabinet and tail end seat, between motor cabinet and the tail end seat screw component is set, wherein screw component is made up of screw mandrel and screw mandrel nut, the locking of screw mandrel nut is moved part, be moved on the track that part is enclosed within pedestal, the motor of motor cabinet is connected with ball screw by shaft coupling, two ball screw special bearings are housed in the motor cabinet, bearing cap is pressed the compression axis bearing outer-ring, the ball screw axle head is inserted in the bearing inner race in the motor cabinet, put cushion cover again and compress bearing inner race, it is characterized in that: the zanjon ball bearing is installed between two ball screw special bearings with fastening nut.
2, vertical numerical control machining center three axial drive lead screw assembly apparatus as claimed in claim 1, it is characterized in that: suit has the tail end cover for seat of inside and outside nut in the tail end seat, two ball screw special bearings of installing in the tail end cover for seat, by nut compressing bearing outer ring in the tail end cover for seat, ball screw bearing inner race and ball screw tail end axle head connect airtight, put cushion cover and compress bearing inner race with fastening nut, tail end cover for seat exterior nut cap screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201455998U CN201283506Y (en) | 2008-09-16 | 2008-09-16 | Vertical type numerical control machining center triaxial-directional transmission lead screw assembly device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201455998U CN201283506Y (en) | 2008-09-16 | 2008-09-16 | Vertical type numerical control machining center triaxial-directional transmission lead screw assembly device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201283506Y true CN201283506Y (en) | 2009-08-05 |
Family
ID=40948491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201455998U Expired - Fee Related CN201283506Y (en) | 2008-09-16 | 2008-09-16 | Vertical type numerical control machining center triaxial-directional transmission lead screw assembly device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201283506Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284879A (en) * | 2011-08-25 | 2011-12-21 | 濮阳贝英数控机械设备有限公司 | Servo driving mechanism with no adjusting pad and working method |
| CN105736663A (en) * | 2016-04-15 | 2016-07-06 | 江苏润德精密机械有限公司 | Assembly method of transmission shaft structure |
| CN106541299A (en) * | 2017-01-11 | 2017-03-29 | 宁波马可机电有限公司 | A kind of hollow oil cooling tail end seat sealing device of machining center screw rod |
-
2008
- 2008-09-16 CN CNU2008201455998U patent/CN201283506Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102284879A (en) * | 2011-08-25 | 2011-12-21 | 濮阳贝英数控机械设备有限公司 | Servo driving mechanism with no adjusting pad and working method |
| CN105736663A (en) * | 2016-04-15 | 2016-07-06 | 江苏润德精密机械有限公司 | Assembly method of transmission shaft structure |
| CN106541299A (en) * | 2017-01-11 | 2017-03-29 | 宁波马可机电有限公司 | A kind of hollow oil cooling tail end seat sealing device of machining center screw rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20120916 |