CN105750972A - Power head for numerical control machine tool - Google Patents
Power head for numerical control machine tool Download PDFInfo
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- CN105750972A CN105750972A CN201410804592.2A CN201410804592A CN105750972A CN 105750972 A CN105750972 A CN 105750972A CN 201410804592 A CN201410804592 A CN 201410804592A CN 105750972 A CN105750972 A CN 105750972A
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Abstract
The invention provides a power head for a numerical control machine tool. The power head comprises a feeding transmission system; the feeding transmission system comprises a feeding motor; the feeding motor is in transmission connection with a spindle sleeve through a ball screw pair; the ball screw pair comprises a screw; a front support base is arranged on the front side wall of a box body; the screw is movably arranged on the front support base through a bearing; the rear side wall of the box body is provided with a rear support base for supporting the screw; a nut on which a nut base is arranged is arranged on the screw; the nut base is fixedly connected with the spindle sleeve; the rear support base comprises a rear base body fixed on the rear side wall of the box body, and carrier rollers, small shafts and thrust bearings; two small shafts are arranged on the rear base body; the thrust bearings are arranged on two ends of each of the small shafts; each small shaft is provided with the carrier roller; the screw is loaded on the two carrier rollers; the small shafts are in interference fit with the rear support base. The power head for the numerical control machine tool provided by the invention can ensure normal working of the screw, without worrying about affecting the working caused by down-warping resulted from self weight of the screw.
Description
Technical field
The present invention relates to the technical field of processing equipment of universal machine, in particular relate to a kind of Digit Control Machine Tool unit head.
Background technology
At present, the power unit of machine tool of the existing overwhelming majority is divided into four classes: i.e. hand feed formula, mechanical gear advanceable, pneumatic advanceable and oil pressure advanceable, the power unit of machine tool of these four type all also exists automaticity problem low, inefficient, and this develops to NC postprocessing direction with at present industry and is not easily connected.
Leading screw transmits the critical component of power and location as Digit Control Machine Tool, develop consistent with industry at present to NC postprocessing direction, therefore, the power unit of machine tool of the first-elected ball-screw-transmission of the current functional part short distance transmission in precision drive field, but ball-screw-transmission is point cantact, contact impetus localized contact stress is big, it is after certain life cycle, meeting is the destruction of being peeling property because of fatigue, cause and scrap, especially distance transmitting balls leading screw, it is easier to cause leading screw to spend greatly because of deadweight downwarp, cause cisco unity malfunction.
Summary of the invention
It is an object of the invention to provide a kind of Digit Control Machine Tool unit head, design a title for the ball screw assembly, in Digit Control Machine Tool unit head, to ensure transmission efficiency and the transmission accuracy of ball screw assembly, it is ensured that the bearing capacity of ball screw assembly, and robust motion.
To achieve these goals, the present invention is achieved by the following technical solutions:
A kind of Digit Control Machine Tool unit head, including casing and main transmission, feeding transmission system, it is characterised in that: described main transmission, feeding transmission system electrically connect with digital control implement；
Described main transmission, including main shaft and the spindle motor being arranged on cabinet exterior, described main shaft is arranged in rack sleeve, and described main shaft is movably arranged in casing by rack sleeve, and described spindle motor is connected with spindle drive by main belt gear；
Described feeding transmission system, including the feeding motor being arranged in casing, described feeding motor is in transmission connection by a ball wire bar pair and rack sleeve；
Described ball wire bar pair, including screw mandrel, being provided with front support seat on the front side wall of described casing, the inner chamber of described front support seat is provided with bearing, and described screw mandrel passes from bearing, it is movably arranged in casing, the front end of described screw mandrel is stretched out from the front side wall of casing, and the rear wall of described casing is provided with the rear branching holder for support screw mandrel, and described screw mandrel is provided with screw, being provided with nut seat on described screw, described nut seat is fixing with rack sleeve to be connected；
Described rear branching holder, including the rear pedestal and carrying roller, little axle, the thrust bearing that are fixed on casing rear wall, described rear pedestal is provided with two little axles, it is provided with thrust bearing at the two ends of little axle, all being provided with carrying roller on each little axle, leading screw load is put on two carrying rollers, little axle and rear pedestal interference fit.
As the improvement to technique scheme, the motor shaft of described feeding motor arranges motor gear, the front end of described screw mandrel is provided with screw gear, cabinet exterior is provided with transition gear, and the gear drive that described feeding motor consists of motor gear, transition gear, screw gear is in transmission connection with ball wire bar pair.
As the improvement to technique scheme, described main belt gear, connecting ring including the spindle motor belt pulley being arranged on spindle motor, primary shaft belt pulley, belt wheel, described primary shaft belt pulley is connected transmission by axial movable device with main shaft.
As the improvement to technique scheme, described axial movable device is intermeshing spline drived mechanism, and including splined sleeve, spline is arranged on main shaft circumference.
Compared with prior art, it is an advantage of the current invention that:
The Digit Control Machine Tool unit head of the present invention, the front end of the screw mandrel of its ball wire bar pair is provided with front support seat, and screw mandrel is movably arranged on front bearing, rear end is provided with rear branching holder, can support screw mandrel, thus ensureing the normal operation of leading screw, do not worry that leading screw affects work because conducting oneself with dignity the downwarp that causes；Main transmission can realize the rotary motion of main shaft, and feed system drives rack sleeve to complete feed motion, it is achieved micrometer feed, can multistage feed adding man-hour, the good stability of its work, and can arbitrarily set quickly and at a slow speed in feed process, and then realize automatization；The gear drive that motor consists of motor gear, transition gear, screw gear is in transmission connection with ball wire bar pair, stable drive, and transmission efficiency is high, transmission torsion is big, not easy to wear.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the partial enlargement structural representation of rear branching holder.
Accompanying drawing labelling: 1-casing；2-main shaft；3-rack sleeve；4-spindle motor；5-primary shaft belt pulley；6-spindle motor belt pulley；7-belt wheel connects ring；8-splined sleeve；9-screw mandrel；10-screw gear；11-nut seat；12-feeding motor；Pedestal after 13-；14-front support seat；15-carrying roller；The little axle of 16-；17-motor gear；18-screw.
Detailed description of the invention
For the features described above of the present invention and advantage can be become apparent, special embodiment below, and coordinate accompanying drawing, it is described in detail below, but the present invention is not limited to this.
Embodiment one:
As shown in Figure 1, 2, the Digit Control Machine Tool unit head of the present invention, including casing 1 and main transmission, feeding transmission system, described main transmission, feeding transmission system electrically connect with digital control implement；
Described main transmission, including main shaft 2 and the spindle motor 4 being arranged on casing 1 outer wall, described main shaft 2 is arranged in rack sleeve 3, and described main shaft 2 is movably arranged in casing 1 by rack sleeve 3, and described spindle motor 4 is in transmission connection by main belt gear and main shaft 2；
Described feeding transmission system, including the feeding motor 12 being arranged in casing 1, described feeding motor 12 is in transmission connection by a ball wire bar pair and rack sleeve 3；
Described ball wire bar pair, including screw mandrel 9, being provided with front support seat 14 on the front side wall of described casing 1, the inner chamber of described front support seat 14 is provided with bearing, and described screw mandrel 9 passes from bearing, it is movably arranged in casing 1, the front end of described screw mandrel 9 is stretched out from the front side wall of casing 1, and the rear wall of described casing 1 is provided with the rear branching holder for support screw mandrel, and described screw mandrel 9 is provided with screw 18, being provided with nut seat 11 on described screw 18, described nut seat 11 is fixing with rack sleeve 3 to be connected；
Described rear branching holder, including the rear pedestal 13 and carrying roller 15, little axle 16, the thrust bearing that are fixed on casing rear wall, described rear pedestal 13 is provided with two little axles 16, it is provided with thrust bearing at the two ends of little axle 16, each little axle 15 is all provided with carrying roller 15, leading screw 9 load is put on two carrying rollers 15, little axle 16 and rear pedestal 13 interference fit.
The motor shaft of described feeding motor 12 arranges motor gear 17, the front end of described screw mandrel 9 is provided with screw gear 10, casing 1 outer wall is provided with transition gear, and the gear drive that described feeding motor 12 consists of motor gear 17, transition gear, screw gear 10 is in transmission connection with ball wire bar pair.
Described main belt gear, connects ring 7 including the spindle motor belt pulley 6 being arranged on spindle motor 4, the primary shaft belt pulley 5 being provided with on main shaft 2, belt wheel, and described primary shaft belt pulley 5 is connected transmission by axial movable device with main shaft 2.
Described axial movable device is intermeshing spline drived mechanism, and including splined sleeve 8, spline is arranged on the circumference of main shaft 2.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (4)
1. a Digit Control Machine Tool unit head, including casing and main transmission, feeding transmission system, described main transmission, feeding transmission system electrically connect with digital control implement；It is characterized in that:
Described main transmission, including main shaft and the spindle motor being arranged on cabinet exterior, described main shaft is arranged in rack sleeve, and described main shaft is movably arranged in casing by rack sleeve, and described spindle motor is connected with spindle drive by main belt gear；
Described feeding transmission system, including the feeding motor being arranged in casing, described feeding motor is in transmission connection by a ball wire bar pair and rack sleeve；
Described ball wire bar pair, including screw mandrel, being provided with front support seat on the front side wall of described casing, the inner chamber of described front support seat is provided with bearing, and described screw mandrel passes from bearing, it is movably arranged in casing, the front end of described screw mandrel is stretched out from the front side wall of casing, and the rear wall of described casing is provided with the rear branching holder for support screw mandrel, and described screw mandrel is provided with screw, being provided with nut seat on described screw, described nut seat is fixing with rack sleeve to be connected；
Described rear branching holder, including the rear pedestal and carrying roller, little axle, the thrust bearing that are fixed on casing rear wall, described rear pedestal is provided with two little axles, it is provided with thrust bearing at the two ends of little axle, all being provided with carrying roller on each little axle, leading screw load is put on two carrying rollers, little axle and rear pedestal interference fit.
2. Digit Control Machine Tool unit head according to claim 1, it is characterized in that: the motor shaft of described feeding motor arranges motor gear, the front end of described screw mandrel is provided with screw gear, cabinet exterior is provided with transition gear, and the gear drive that described feeding motor consists of motor gear, transition gear, screw gear is in transmission connection with ball wire bar pair.
3. Digit Control Machine Tool unit head according to claim 1, it is characterized in that: described main belt gear, connecting ring including the spindle motor belt pulley being arranged on spindle motor, primary shaft belt pulley, belt wheel, described primary shaft belt pulley is connected transmission by axial movable device with main shaft.
4. Digit Control Machine Tool unit head according to claim 3, it is characterised in that: described axial movable device is intermeshing spline drived mechanism, and including splined sleeve, spline is arranged on main shaft circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410804592.2A CN105750972A (en) | 2014-12-19 | 2014-12-19 | Power head for numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410804592.2A CN105750972A (en) | 2014-12-19 | 2014-12-19 | Power head for numerical control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105750972A true CN105750972A (en) | 2016-07-13 |
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ID=56341192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410804592.2A Pending CN105750972A (en) | 2014-12-19 | 2014-12-19 | Power head for numerical control machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105750972A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108750653A (en) * | 2018-07-17 | 2018-11-06 | 陕西科技大学 | A kind of multi-trace electric cam pick and place machine tool hand and its control method |
| CN112692631A (en) * | 2019-10-22 | 2021-04-23 | 固安航天兴邦机械制造有限公司 | High-precision spline spindle power head supported by sleeve |
-
2014
- 2014-12-19 CN CN201410804592.2A patent/CN105750972A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108750653A (en) * | 2018-07-17 | 2018-11-06 | 陕西科技大学 | A kind of multi-trace electric cam pick and place machine tool hand and its control method |
| CN108750653B (en) * | 2018-07-17 | 2024-02-27 | 陕西科技大学 | Control method of multi-track electronic cam picking and placing manipulator |
| CN112692631A (en) * | 2019-10-22 | 2021-04-23 | 固安航天兴邦机械制造有限公司 | High-precision spline spindle power head supported by sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160713 |
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| WD01 | Invention patent application deemed withdrawn after publication |