CN204036112U - Transmission mechanism and machining tool - Google Patents
Transmission mechanism and machining tool Download PDFInfo
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- CN204036112U CN204036112U CN201420419337.1U CN201420419337U CN204036112U CN 204036112 U CN204036112 U CN 204036112U CN 201420419337 U CN201420419337 U CN 201420419337U CN 204036112 U CN204036112 U CN 204036112U
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- hollow shaft
- screw mandrel
- transmission mechanism
- fixedly connected
- transmission
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Abstract
The utility model is applicable to technical field of mechanical transmission, provide a kind of transmission mechanism and machining tool, the ball wire bar pair that transmission mechanism comprises pedestal, motor cabinet, servomotor, the deceleration system be connected with servomotor, the hollow shaft assembly be connected with deceleration system and is connected with hollow shaft assembly; Ball wire bar pair comprises the feed screw nut be fixedly connected with hollow shaft assembly, the screw mandrel be connected with screw nut driving, and screw mandrel is fixedly connected on screw mandrel holder.In the utility model, it is by arranging servomotor and deceleration system, and hollow shaft assembly is set is connected with deceleration system, and hollow shaft assembly is fixedly connected with ball wire bar pair, when servomotor rotates, power is finally passed to feed screw nut, afterwards feed screw nut moves along screw mandrel, because screw mandrel is fixing, thus can avoid the restriction by critical speed, feed screw nut's inertia is little, and motion flexibly, attainable rotating speed is higher, and thus it has the advantages that transmission efficiency is high, moving equilibrium good and transmission accuracy is high.
Description
Technical field
The utility model belongs to technical field of mechanical transmission, particularly relates to a kind of transmission mechanism and machining tool.
Background technology
In the plant equipment such as machining tool, transmission mechanism is as the power transfer unit of executing agency, and its performance directly affects the processing characteristics of executing agency, has larger impact to product to be processed.The transmission mechanism of existing machining tool is generally gear drive, belt transmission, the direct-connected driving of screw mandrel, chain gear transmission etc., due to its transmission mechanism arrange unreasonable, cause low, the easy shake of its transmission efficiency, be difficult to control, stability of equilibrium is poor, transmission accuracy is not high, its combination property is not good, and cost performance is not high.
Utility model content
The purpose of this utility model is to provide a kind of transmission mechanism and machining tool, and the transmission mechanism transmission efficiency of machining tool being intended to solve prior art is low, stability of equilibrium is poor, easily shake, be difficult to the problem that controls, transmission accuracy is not high.
The utility model is achieved in that a kind of transmission mechanism, and it comprises pedestal, the motor cabinet be located on described pedestal, the servomotor be fixedly connected on described motor cabinet, the deceleration system be connected with the output shaft of described servomotor, the hollow shaft assembly be connected with described deceleration system and the ball wire bar pair that is connected with described hollow shaft assembly; Described ball wire bar pair comprises the feed screw nut be fixedly connected with described hollow shaft assembly, the screw mandrel be connected with described screw nut driving, and described screw mandrel is fixedly connected on screw mandrel holder.
Particularly, described deceleration system is synchronization belt transmission system, described synchronization belt transmission system comprises the first belt wheel be connected with the output shaft of described servomotor, the Timing Belt be connected with described first belt wheel transmission, the second belt wheel of being connected with described toothed belt transmission, and the diameter of described second belt wheel is greater than the diameter of described first belt wheel.
More specifically, described hollow shaft assembly comprise be arranged in described second belt wheel and the hollow shaft be fixedly connected with it, the bearing be sheathed in described hollow shaft, for supporting the bearing block of described bearing and being sheathed in described hollow shaft and for the locking nut of the inner ring of locking described bearing, described feed screw nut is embedded at the port of described hollow shaft and is fixedly connected with described hollow shaft, described feed screw nut and described bearing are oppositely arranged, and are fixedly connected with after described screw mandrel passes through the inner chamber of described hollow shaft with described screw mandrel holder; Described locking nut is located between described second belt wheel and described bearing.
Particularly, be fixedly connected with by tensioning sleeve between described hollow shaft with described second belt wheel.
Particularly, on the lateral wall of described feed screw nut, convex is provided with connection boss, and the end face of described hollow shaft offsets with the described end face being connected boss.
More specifically, end relative with described second belt wheel in described hollow shaft is provided with one first oil sealing, and described first oil-sealing sleeve is located on described screw mandrel.
Particularly, the outer end of described first oil sealing is provided with one second oil sealing, and described second oil-sealing sleeve is located on described screw mandrel.
Particularly, between described bearing block and described pedestal, be provided with one first positioning and guiding key, correspondingly on described bearing block and described pedestal be provided with for the first accommodating keyway of described first positioning and guiding key.
Particularly, between described motor cabinet and described pedestal, be provided with one second positioning and guiding key, correspondingly on described motor cabinet and described pedestal be provided with for the second accommodating keyway of described second positioning and guiding key.
A kind of machining tool, it comprises above-mentioned transmission mechanism.
The transmission mechanism that the utility model provides, it is by arranging servomotor and deceleration system, and hollow shaft assembly is set is connected with deceleration system, and hollow shaft assembly is fixedly connected with screw pair, when servomotor rotates, by power transmission to deceleration system, afterwards deceleration system by power transmission to hollow shaft assembly, and the feed screw nut of ball wire bar pair and hollow shaft assembly are for being fixedly connected with, thus hollow shaft assembly can by power transmission to feed screw nut, because screw mandrel is fixed, thus feed screw nut can move along screw mandrel, in its ball wire bar pair, because screw mandrel is fixing, by screw nut driving, thus the restriction by critical speed can be avoided, avoid the variety of problems occurred when elongated screw mandrel runs up, and feed screw nut's inertia is little, motion flexibly, attainable rotating speed is higher, thus its to have transmission efficiency high, wear and tear little, moving equilibrium is good, without creeping phenomenon, be easy to the feature controlled and transmission accuracy is high, its comprehensive sexual valence is higher.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the transmission mechanism that the utility model embodiment provides;
Fig. 2 is the explosive view of the transmission mechanism of Fig. 1;
Fig. 3 is the cross-sectional schematic after the hollow shaft assembly of the transmission mechanism of Fig. 1 and ball wire bar pair are assembled;
Fig. 4 is the cross-sectional schematic after the motor cabinet of the transmission mechanism of Fig. 1 and pedestal are assembled.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figures 1 to 4, for the associated exemplary figure of the transmission mechanism that the utility model embodiment provides, it comprises pedestal 1, the motor cabinet 2 be located on pedestal 1, the servomotor 3 be fixedly connected on motor cabinet 2, the deceleration system 4 be connected with the output shaft of servomotor 3, the hollow shaft assembly 5 be connected with deceleration system 4 and the ball wire bar pair 6 that is connected with hollow shaft assembly 5; Wherein, ball wire bar pair 6 comprises the feed screw nut 61 be fixedly connected with hollow shaft assembly 5, the screw mandrel 62 be in transmission connection with feed screw nut 61, and screw mandrel 62 is fixedly connected on screw mandrel holder 63.The supporting way of screw mandrel 62 can be two ends and fixes, namely all arrange screw mandrel holder 63 at the two ends of screw mandrel 62 to support, deformation can be caused due to temperature rise in the course of the work because of screw mandrel 62, its length can be extended, in order to improve the positioning precision of machining tool and make machining tool keep positioning precision in the course of the work, screw mandrel 62 can carry out prestretched to it when mounted, and screw mandrel holder 63 also will carry out pretension, certain pretension is applied to screw mandrel 62, to compensate the thermal deformation of screw mandrel 62, during concrete enforcement, certain pulling force is applied to adjust the direction tightness of positive and negative nut to the length direction of screw mandrel 62 when assembling on request with two locking nuts (positive and negative nut) exactly to screw mandrel 62 prestretched, and also need to ensure its axis and supporting guide rail parallel, the stretching of screw mandrel 62 realizes by the thickness increasing adjustment pad.In working order, screw mandrel 62 is static, and feed screw nut 61 along screw mandrel 62 transmission, thus drives together with the associated components connected directly or indirectly with feed screw nut 61 and moves.
In the utility model, it is by arranging servomotor 3 and deceleration system 4, and hollow shaft assembly 5 is set is connected with deceleration system 4, and hollow shaft assembly 5 is fixedly connected with ball wire bar pair 6, when servomotor 3 rotates, by power transmission to deceleration system 4, afterwards deceleration system 4 by power transmission to hollow shaft assembly 5, and the feed screw nut 61 of ball wire bar pair 6 and hollow shaft assembly 5 are for being fixedly connected with, thus hollow shaft assembly 5 can by power transmission to feed screw nut 61, because screw mandrel 62 is fixed, thus feed screw nut 61 can move along screw mandrel 62, in its ball wire bar pair 6, because screw mandrel 62 is fixing, by feed screw nut 61 transmission, thus the restriction by critical speed can be avoided, avoid the variety of problems occurred when elongated screw mandrel 62 runs up, and feed screw nut 61 inertia is little, motion flexibly, attainable rotating speed is higher, thus its to have transmission efficiency high, wear and tear little, moving equilibrium is good, without creeping phenomenon, be easy to the feature controlled and transmission accuracy is high, its comprehensive sexual valence is higher.
As an embodiment, deceleration system 4 can be synchronization belt transmission system, this synchronization belt transmission system can comprise the first belt wheel 41 be connected with the output shaft of servomotor 3, the Timing Belt 42 be in transmission connection with the first belt wheel 41, the second belt wheel 43 of being in transmission connection with Timing Belt 42, wherein, the diameter of the second belt wheel 43 is greater than the diameter of the first belt wheel 41.The advantage that synchronization belt transmission system has that transmission efficiency is high, noise is little, wearability is good, the life-span is long, thus can make that this transmission mechanism is reliable and stable, combination property is high.The configuration of servomotor 3 and synchronization belt transmission system, achieves the closed-loop control of position, speed and moment, and its anti-overload ability is strong, and low cruise is steady; The dynamic response time of motor acceleration and deceleration is short, and caloric value is low, and noise is little, and transmission is accurate, fricton-tight phenomenon during work, and has constant gearratio.
Particularly, hollow shaft assembly 5 comprise be arranged in the second belt wheel 43 and the hollow shaft 51 be fixedly connected with it, the bearing 52 be sheathed in hollow shaft 51, for the bearing block 53 of spring bearing 52 and the locking nut 54 that is sheathed in hollow shaft 51, locking nut 54, for locking the inner ring of bearing 52, is fixed to make it; Feed screw nut 61 is embedded at the port of hollow shaft 51 and is fixedly connected with hollow shaft 51, and feed screw nut 61 and bearing 52 are oppositely arranged, and are fixedly connected with after screw mandrel 62 passes through the inner chamber of hollow shaft 51 with screw mandrel holder 63; Locking nut 54 is located between the second belt wheel 43 and bearing 52.Because hollow shaft 51 is fixedly connected with the second belt wheel 43, and hollow shaft 51 is arranged in bearing 52, therefore when the second belt wheel 43 rotates, hollow shaft 51 can be driven to rotate, and hollow shaft 51 and feed screw nut 61 are for being fixedly connected with, therefore the rotation of hollow shaft 51 can drive feed screw nut 61 to rotate, feed screw nut 61 and screw mandrel 62 are in transmission connection, and screw mandrel 62 is fixed on screw mandrel holder 63, therefore feed screw nut 61 can move along screw mandrel 62, the each parts be then directly or indirectly connected with feed screw nut 61 all can move along screw mandrel 62, also be hollow shaft assembly 5, synchronization belt transmission system, pedestal 1 and the motor cabinet 2 be connected on pedestal 1, servomotor 3 grade all can move along screw mandrel 62, thus finally realize convert rotational motion being rectilinear motion.
For making to be connected tightr between hollow shaft 51 with the second belt wheel 43, ensure transmission efficiency and transmission accuracy, be fixedly connected with by tensioning sleeve 55 between hollow shaft 51 with the second belt wheel 43, namely first tensioning sleeve 55 be sheathed in hollow shaft 51, then the second belt wheel 43 is sheathed on tensioning sleeve 55.
As a detailed description of the invention, outside projection one boss 611 can be connected on the lateral wall of feed screw nut 61, the end face of hollow shaft 51 is connected boss 611 end face with this offsets, like this, just by securing members such as screws connection boss 611 is locked with the end of hollow shaft 51 and is connected, be also fixedly connected in hollow shaft 51 by feed screw nut 61.
More smooth and easy for making hollow shaft 51 rotate, lubricating oil can be poured in the inner chamber of hollow shaft 51, end relative with the second belt wheel 43 in hollow shaft 51 arranges one first oil sealing 71, this first oil sealing 71 is sheathed on screw mandrel 62, the setting of the first oil sealing 71, not only can prevent leakage of oil, it also can avoid dust or cut dirt etc. entering in hollow shaft 51.The inner hole wall of the first oil sealing 71 can be arranged to the threaded walls suitable with the screw thread raceway of screw mandrel 62, thus it can swimmingly along with hollow shaft 51 moves along screw mandrel 62 together, the other end due to hollow shaft 51 is embedded with feed screw nut 61, and feed screw nut 61 and screw mandrel 62 are in transmission connection, therefore the other end of hollow shaft 51 is also got up by shutoff, without the need to worrying that it can leakage of oil.
For sealing the inner chamber of hollow shaft 51 further, one second oil sealing 72, second oil sealing 72 can be set in the outer end of the first oil sealing 71 and be sheathed on screw mandrel 62, thus sealing effectiveness can be made better.The endoporus aperture of the second oil sealing 72 slightly larger than the endoporus aperture of the first oil sealing 71, can be blocked to prevent the second oil sealing 72.
Firmly be connected with pedestal 1 for making bearing block 53, ensure the transmission stability of hollow shaft 51, one first positioning and guiding key 81 can be set between bearing block 53 and pedestal 1, correspondingly on bearing block 53 and pedestal 1 be provided with for the first accommodating keyway 531,11 of the first positioning and guiding key 81, namely the first positioning and guiding key 81 part is placed in the first keyway 531 of bearing block 53, separately some is placed in the first keyway 11 of pedestal 1, and bearing block 53 is connected on pedestal 1 by securing member lockings such as screws.
Similarly, see Fig. 4, for making firmly to be connected between motor cabinet 2 with pedestal 1, to locate, one second positioning and guiding key 82 can be set between motor cabinet 2 and pedestal 1, correspondingly on motor cabinet 2 and pedestal 1 be provided with for the second accommodating keyway 21,12 of the second positioning and guiding key 82.Namely the second positioning and guiding key 82 part is placed in the second keyway 21 of motor cabinet 2, and another part is placed in the second keyway 12 of pedestal 1.Motor cabinet 2 is also connected on pedestal 1 by securing member lockings such as screws.
The utility model additionally provides a kind of machining tool, and it comprises above-mentioned transmission mechanism.Due to above-mentioned transmission mechanism have transmission efficiency high, wear and tear little, moving equilibrium is good, without creeping phenomenon and transmission accuracy high, thus can make that the transmission system transmission efficiency of this machining tool is high, stable drive, transmission accuracy are high, its good processing stability, machining accuracy are higher.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all do within spirit of the present utility model and principle any amendment, equivalent to replace or improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a transmission mechanism, is characterized in that: comprise pedestal, the motor cabinet be located on described pedestal, the servomotor be fixedly connected on described motor cabinet, the deceleration system be connected with the output shaft of described servomotor, the hollow shaft assembly be connected with described deceleration system and the ball wire bar pair that is connected with described hollow shaft assembly; Described ball wire bar pair comprises the feed screw nut be fixedly connected with described hollow shaft assembly, the screw mandrel be connected with described screw nut driving, and described screw mandrel is fixedly connected on screw mandrel holder.
2. transmission mechanism as claimed in claim 1, it is characterized in that: described deceleration system is synchronization belt transmission system, described synchronization belt transmission system comprises the first belt wheel be connected with the output shaft of described servomotor, the Timing Belt be connected with described first belt wheel transmission, the second belt wheel of being connected with described toothed belt transmission, and the diameter of described second belt wheel is greater than the diameter of described first belt wheel.
3. transmission mechanism as claimed in claim 2, it is characterized in that: described hollow shaft assembly comprises and being arranged in described second belt wheel and the hollow shaft be fixedly connected with it, be sheathed on the bearing in described hollow shaft, for supporting the bearing block of described bearing and being sheathed in described hollow shaft and for the locking nut of the inner ring of locking described bearing, described feed screw nut is embedded at the port of described hollow shaft and is fixedly connected with described hollow shaft, described feed screw nut and described bearing are oppositely arranged, be fixedly connected with described screw mandrel holder after described screw mandrel passes through the inner chamber of described hollow shaft, described locking nut is located between described second belt wheel and described bearing.
4. transmission mechanism as claimed in claim 3, be is characterized in that: be fixedly connected with by tensioning sleeve between described hollow shaft with described second belt wheel.
5. transmission mechanism as claimed in claim 3, it is characterized in that: on the lateral wall of described feed screw nut, convex is provided with connection boss, the end face of described hollow shaft offsets with the described end face being connected boss.
6. transmission mechanism as claimed in claim 3, it is characterized in that: end relative with described second belt wheel in described hollow shaft is provided with one first oil sealing, described first oil-sealing sleeve is located on described screw mandrel.
7. transmission mechanism as claimed in claim 6, is characterized in that: the outer end of described first oil sealing is provided with one second oil sealing, and described second oil-sealing sleeve is located on described screw mandrel.
8. transmission mechanism as claimed in claim 3, is characterized in that: be provided with one first positioning and guiding key between described bearing block and described pedestal, correspondingly on described bearing block and described pedestal is provided with for the first accommodating keyway of described first positioning and guiding key.
9. the transmission mechanism as described in any one of claim 1 to 8, it is characterized in that: between described motor cabinet and described pedestal, be provided with one second positioning and guiding key, correspondingly on described motor cabinet and described pedestal to be provided with for the second accommodating keyway of described second positioning and guiding key.
10. a machining tool, is characterized in that: comprise the transmission mechanism as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420419337.1U CN204036112U (en) | 2014-07-28 | 2014-07-28 | Transmission mechanism and machining tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420419337.1U CN204036112U (en) | 2014-07-28 | 2014-07-28 | Transmission mechanism and machining tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204036112U true CN204036112U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420419337.1U Active CN204036112U (en) | 2014-07-28 | 2014-07-28 | Transmission mechanism and machining tool |
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| Country | Link |
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| CN (1) | CN204036112U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242717A (en) * | 2019-06-19 | 2019-09-17 | 上海玖蓥智能科技有限公司 | A kind of mechanism for saving space and promoting retardation efficiency |
-
2014
- 2014-07-28 CN CN201420419337.1U patent/CN204036112U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110242717A (en) * | 2019-06-19 | 2019-09-17 | 上海玖蓥智能科技有限公司 | A kind of mechanism for saving space and promoting retardation efficiency |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160720 Address after: 518000, No. 5, Central Road, manhole street, Shenzhen, Guangdong, Baoan District Patentee after: Shenzhen DNE Laser Science and Technology Co.,Ltd. Address before: Wan Feng Road Baoan District manhole Street Center of Shenzhen City, Guangdong province 518000 98 industrial city side building first Patentee before: SHENZHEN DNE LASER EQUIPMENT Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 floors 1-5, No. 8179-1, Bao'an Avenue, Digang community, Shajing street, Bao'an District, Shenzhen, Guangdong Province Patentee after: Baichao (Shenzhen) Laser Technology Co.,Ltd. Address before: 518000 No. 5 Shajing Street Center Road, Baoan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen DNE Laser Science and Technology Co.,Ltd. |