CN206169733U - A lead screw device for digit control machine tool - Google Patents
A lead screw device for digit control machine tool Download PDFInfo
- Publication number
- CN206169733U CN206169733U CN201621078721.5U CN201621078721U CN206169733U CN 206169733 U CN206169733 U CN 206169733U CN 201621078721 U CN201621078721 U CN 201621078721U CN 206169733 U CN206169733 U CN 206169733U
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- CN
- China
- Prior art keywords
- lead screw
- machine tool
- screw shaft
- control machine
- digit control
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- 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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- Automatic Control Of Machine Tools (AREA)
Abstract
The utility model discloses a lead screw device for digit control machine tool, it includes: the lead screw axle, threaded connection in the epaxial screw nut of lead screw, and drive rotary motion's servo motor is made to the lead screw axle around self axis, the tip of lead screw axle is installed and is used for detecting the rotary encoder that this lead screw axle rotated the number of turns, this rotary encoder with servo motor all with the numerical control system of digit control machine tool links to each other. The utility model discloses this kind of lead screw device can accurate control machine tool machining the displacement volume of end, improve the machining precision of lathe.
Description
Technical field
This utility model is related to lathe especially digit ctrol machine tool field, and in particular to a kind of leading screw for Digit Control Machine Tool is filled
Put.
Background technology
Known, feed screw apparatus are generally disposed between fixture and movable part in technical field of mechanical equipment, for driving
Movable part opposed fixed member moves along a straight line.The feed screw apparatus being such as arranged between the sliding table of Digit Control Machine Tool and base are sliding
Dynamic workbench is slidably disposed on base by guide rail, and feed screw apparatus then drive sliding table along slide, its
By the lead screw shaft being rotatably connected on base, the leading screw spiral shell for being fixedly installed on sliding table and being threadedly coupled with lead screw shaft
Servomotor composition that is female and being connected to drive lead screw shaft to rotate by belt and lead screw shaft.During work, servomotor
Rotate to drive lead screw shaft to rotate, lead screw shaft drives again the feed screw nut being threadedly coupled therewith to move axially, and then drives lathe
Sliding table relative to lathe base move linearly.Due between servomotor and lead screw shaft because a variety of causes is (such as belt
Skid, motor speed it is unstable etc.) and there is drive gap error, so be difficult to by the state modulator to servomotor come
Ensure the displacement accuracy of movable part (such as the sliding table of lathe), in actual application, occur platen position often
The excessive or how little problem of shifting amount.
Utility model content
This utility model purpose is：For the problems referred to above, a kind of feed screw apparatus for Digit Control Machine Tool are proposed, accurately to control
The displacement of machine effecting end processed, improves the machining accuracy of lathe.
The technical solution of the utility model is：A kind of feed screw apparatus for Digit Control Machine Tool, including：
Lead screw shaft；
The feed screw nut being threadedly connected in the lead screw shaft；And
The servomotor for driving the lead screw shaft to rotate around own axes；
The end of the lead screw shaft is provided with for detecting that the screw axis rotate the rotary encoder of the number of turns, the rotary coding
Device and the servomotor are connected with the digital control system of the Digit Control Machine Tool.
The rotation detection axle of the rotary encoder is fixedly and coaxially connected with the lead screw shaft.
The rotation detection axle of the rotary encoder is fixedly and coaxially connected by shaft coupling with the lead screw shaft.
The servomotor is connected with the lead screw shaft by driving belt.
The utility model has the advantages that：This feed screw apparatus for Digit Control Machine Tool of this utility model, due in screw axis
On be provided with for detect screw axis rotate the number of turns rotary encoder, and by rotary encoder and servomotor with lathe number
Control system is connected such that it is able to the displacement of precise control machine effecting end, improves the machining accuracy of lathe.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be to wanting needed for embodiment description
The accompanying drawing for using is briefly described, and drawings in the following description are only some embodiments of the present utility model, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, can be attached to obtain others according to these accompanying drawings
Figure.
Fig. 1 is the structural representation of feed screw apparatus in this utility model embodiment；
Wherein：1- lead screw shaft, 2- feed screw nuts, 3- servomotors, 4- rotary encoders, 5- driving belts, 6- shaft couplings.
Specific embodiment
Such scheme is described further below in conjunction with specific embodiment.It should be understood that these embodiments are for illustrating
This utility model and be not limited to limit scope of the present utility model.The implementation condition adopted in embodiment can be according to concrete producer
Condition do further adjustment, not marked implementation condition is usually the condition in normal experiment.
Fig. 1 shows a specific embodiment of this feed screw apparatus for Digit Control Machine Tool of this utility model, with tradition
Feed screw apparatus identical is that it also includes lead screw shaft 1, the feed screw nut 2 being threadedly connected in lead screw shaft and drives the silk
The servomotor 3 that thick stick axle rotates around own axes.
The key improvements of the present embodiment are：The end of the lead screw shaft 1 is installed with one and can detect the leading screw
Axle rotates the rotary encoder 4 of the number of turns (or claim rotational angle), and the rotary encoder 4 and the servomotor 3 with number
The digital control system of control lathe is connected.
It is well known that rotary encoder has fixed housing and the rotation detection that can be rotated with detected member
Axle.In order to improve the accuracy of detection that the rotary encoder 4 rotates the number of turns to lead screw shaft 1, the present embodiment is by the rotary coding
The rotation detection axle of device 4 is fixedly and coaxially connected by shaft coupling 6 with the lead screw shaft 1.The housing and lead screw shaft of rotary encoder
Fixed seat be relatively fixed.
During practical application, servomotor 3 drives lead screw shaft 1 to rotate, and then makes feed screw nut 2 along the axle of lead screw shaft
Line moves linearly, and is connected directly between the rotary encoder 4 in lead screw shaft 1 with the synchronous axial system of lead screw shaft 1, can detect the anglec of rotation
Rotary encoder 4 the rotation number of turns (including non-number of full circle) of lead screw shaft 1 can be in real time sensed during rotation, and felt
The lead screw shaft 1 that should go out rotates the digital control system that the number of turns is delivered to lathe, the position of lead screw shaft and feed screw nut in same feed screw apparatus
Transfer is changed than fixed and, it is known that in advance by the displacement conversion of lead screw shaft and feed screw nut in the lever apparatus than input digital control system,
The real-time calculating silk of displacement conversion ratio that digital control system just can rotate the number of turns and pre-enter according to the lead screw shaft that it is received
The straight-line displacement amount of thick stick nut 2.When the displacement of the feed screw nut that digital control system is calculated is not up to necessary displacement amount, then its
Control servomotor 3 is continued to run with to drive feed screw nut 2 to continue to move to, until the position of the feed screw nut that digital control system is calculated
Shifting amount reaches necessary displacement amount, and servomotor 3 is out of service.
Because rotary encoder 4 is connected directly between in lead screw shaft 1, the lead screw shaft of its detection rotates the number of turns for lead screw shaft rotation
The true reflection of amount, then by the displacement of known lead screw shaft and feed screw nut conversion than the feed screw nut displacement that calculates with
Whether small lead screw shaft-screw nut driven error is only existed between the real displacement amount of feed screw nut, can be ignored not
Meter, can so reach effect pinpoint to machine effecting end, and then improve the machining accuracy of lathe.
In the present embodiment, the servomotor 3 is connected with lead screw shaft 1 by driving belt 5.
Above-mentioned rotary encoder 4 in the present embodiment is purchased from Fa Nake companies of Japan (FANUC), its model A860-
0372-T001。
Certainly, above-described embodiment is only to illustrate technology design of the present utility model and feature, its object is to allow people's energy
It is much of that to solve content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.It is all according to this
Equivalent transformation or modification that the spirit of utility model main technical schemes is done, all should cover in protection of the present utility model
Within the scope of.
Claims (4)
1. a kind of feed screw apparatus for Digit Control Machine Tool, including：
Lead screw shaft (1)；
The feed screw nut (2) being threadedly connected in the lead screw shaft；And
Drive the servomotor (3) that the lead screw shaft rotates around own axes；
Characterized in that, the end of the lead screw shaft (1) is provided with for detecting that the screw axis rotate the rotary encoder of the number of turns
(4), the rotary encoder (4) and the servomotor (3) are connected with the digital control system of the Digit Control Machine Tool.
2. feed screw apparatus for Digit Control Machine Tool according to claim 1, it is characterised in that the rotary encoder (4)
Rotation detection axle be fixedly and coaxially connected with the lead screw shaft (1).
3. feed screw apparatus for Digit Control Machine Tool according to claim 2, it is characterised in that the rotary encoder (4)
Rotation detection axle be fixedly and coaxially connected with the lead screw shaft (1) by shaft coupling (6).
4. feed screw apparatus for Digit Control Machine Tool according to claim 1, it is characterised in that the servomotor (3) with
The lead screw shaft (1) is connected by driving belt (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621078721.5U CN206169733U (en) | 2016-09-26 | 2016-09-26 | A lead screw device for digit control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621078721.5U CN206169733U (en) | 2016-09-26 | 2016-09-26 | A lead screw device for digit control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206169733U true CN206169733U (en) | 2017-05-17 |
Family
ID=58676682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621078721.5U Active CN206169733U (en) | 2016-09-26 | 2016-09-26 | A lead screw device for digit control machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206169733U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393551A (en) * | 2018-05-23 | 2018-08-14 | 江苏工程职业技术学院 | A kind of double main spindle numerical control EDM shaping machines |
| CN110315022A (en) * | 2019-04-22 | 2019-10-11 | 安徽阳天机械工业有限公司 | Numerical value shows automatic feeding |
-
2016
- 2016-09-26 CN CN201621078721.5U patent/CN206169733U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393551A (en) * | 2018-05-23 | 2018-08-14 | 江苏工程职业技术学院 | A kind of double main spindle numerical control EDM shaping machines |
| CN110315022A (en) * | 2019-04-22 | 2019-10-11 | 安徽阳天机械工业有限公司 | Numerical value shows automatic feeding |
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