CN203887237U - Machine tool headstock with precise indexing function - Google Patents
Machine tool headstock with precise indexing function Download PDFInfo
- Publication number
- CN203887237U CN203887237U CN201320859160.2U CN201320859160U CN203887237U CN 203887237 U CN203887237 U CN 203887237U CN 201320859160 U CN201320859160 U CN 201320859160U CN 203887237 U CN203887237 U CN 203887237U
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- CN
- China
- Prior art keywords
- machine tool
- servomotor
- main shaft
- headstock
- transmission mechanism
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- Expired - Fee Related
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Abstract
The utility model relates to a machine tool headstock with a precise indexing function, belongs to the technical field of machines and solves the problem that a machine tool in the prior art cannot precisely realize an indexing function. The machine tool headstock with the precise indexing function comprises a headstock body and a spindle which is arranged in the headstock body in a penetrating way, wherein one end of the spindle is fixedly connected with a fixture which can clamp a workpiece, the other end of the spindle is connected with a driving mechanism which can drive the spindle to rotate, the driving mechanism comprises a servo motor and a transmission mechanism which is connected with an output shaft of the servo motor, and the transmission mechanism transmits power to the spindle. Since the machine tool headstock adopts a control system to control the instantaneous startup and shutdown and the fixed-angle rotation of the servo motor, precise indexing and positioning functions can be realized; since a synchronous belt wheel and a synchronous belt are used as the transmission mechanism and the startup and shutdown at precise angles can be facilitated, the machine tool headstock has the advantages of high indexing precision and convenience in machining.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of numerical control machine tool, particularly a kind of lathe that possesses accurate calibration function.
Background technology
Machine tool and Digit Control Machine Tool are widely used in mechanical processing industry.At present, be arranged on the main shaft that machine tool and Digit Control Machine Tool are provided with motor, headstock, are connected with headstock by bearing, motor is variable-frequency motor, and variable-frequency motor is connected by belt transmission with the main shaft of headstock, and variable-frequency motor input is electrically connected with Frequency Converter Control output.Main shaft in above-mentioned headstock is by variable-frequency motor control and change its rotating speed, and by belt transmission, thereby can save heavy speed change gear, simple in structure.The work of main shaft and speed change can realize by the knob of pressing Frequency Converter Control panel.
But in the process of processing at workpiece, to turn round on the one hand the processing of class lathe tool, also need on the other hand to carry out milling cutter processing or the processing of boring class.Therefore need main shaft to carry out calibration, at present conventional calibration mode is as Chinese patent Granted publication number (CN 201644812) disclosed a kind of machine tool head box, comprise casing and the main shaft that is arranged in casing, main shaft one end is fixed with the fixture of energy clamping workpiece, the other end is connected with the driving mechanism that energy drive shaft is rotated, between main shaft and casing, be provided with detent mechanism, the detent mechanism described in the time that described driving mechanism quits work can make main shaft and casing fix.Utilize piston rod to embed location teeth groove main shaft is realized to accurate calibration location.
But above-mentioned patent locate mode need to stop main frame, just can carry out calibration location, its operating efficiency is low.If directly carry out calibration in process, need to make main shaft accurately to stop at angle to be processed, and in prior art, can be because inertia reason is rotated further several weeks after main shaft stops, cause accomplishing accurate calibration, if locking can cause belt creep by force, cannot complete equally accurate calibration, cannot complete accurately the processing of product.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of machine tool head box that possesses accurate calibration function.
The purpose of this utility model can realize by following technical proposal: a kind of machine tool head box that possesses accurate calibration function, comprise casing and be arranged in the main shaft in casing, described main shaft one end is fixed with the fixture of energy clamping workpiece, the other end is connected with the driving mechanism that energy drive shaft is rotated, it is characterized in that, described driving mechanism comprises servomotor and the transmission mechanism being connected with servomotor output shaft, described transmission mechanism by power transmission to main shaft.
In the above-mentioned machine tool head box that possesses accurate calibration function, described transmission mechanism comprises the output pulley being arranged on servomotor output shaft and is arranged at the input belt wheel of spindle nose, between described output pulley and input belt wheel, connects by Timing Belt.,, through synchronous belt pulley transmission power is delivered on main shaft as power take-off unit by servomotor.
In the above-mentioned machine tool head box that possesses accurate calibration function, described output pulley and input belt wheel are synchronous pulley.Be the mode of synchronous pulley and toothed belt transmission due to what adopt, can prevent that main shaft from affecting the problem of positioning precision in the process of stopping operating because skidding.It is effective that it has locking, the advantage that accurate positioning is high.
In the above-mentioned machine tool head box that possesses accurate calibration function, this headstock also comprises a control system, and described control system is electrically connected with servomotor, and control system can be sent pulse signal control servomotor and determines angular turn.Utilize control system to send pulse signal, control servomotor and complete shutdown and determine angular turn, reach precise positioning and calibration function.
Compared with prior art, this machine tool head box adopts the instantaneous start and stop of control system control servomotor and determines angular turn, can realize accurate calibration positioning function, utilize synchronous pulley and Timing Belt as transmission mechanism, also can facilitate the start and stop of accurate angle, therefore possesses calibration precision high, the advantage of convenient processing.
Brief description of the drawings
Fig. 1 is the main TV structure schematic diagram that originally possesses the machine tool head box of accurate calibration function;
Fig. 2 is the left TV structure schematic diagram that originally possesses the machine tool head box of accurate calibration function.
In figure, 1, casing; 2, main shaft; 3, servomotor; 4, output pulley; 5, input belt wheel; 6, Timing Belt.
Detailed description of the invention
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As depicted in figs. 1 and 2, this machine tool head box comprises casing 1 and is arranged in the main shaft 2 in casing 1, main shaft 2 one end are fixed with the fixture of energy clamping workpiece, the other end is connected with the driving mechanism that energy drive shaft 2 is rotated, described driving mechanism comprises servomotor 3 and the transmission mechanism being connected with servomotor 3 output shafts, by transmission mechanism by power transmission to main shaft 2.Described transmission mechanism comprises the output pulley 4 being arranged on servomotor 3 output shafts and the input belt wheel 5 that is arranged at main shaft 2 ends, between described output pulley 4 and input belt wheel 5, connects by Timing Belt 6.As power take-off unit, take turns transmission through Timing Belt 6 by servomotor 3, power is delivered on main shaft 2.Described output pulley 4 and input belt wheel 5 are taken turns for Timing Belt 6.Be that Timing Belt 6 is taken turns and the mode of Timing Belt 6 transmissions due to what adopt, can prevent that main shaft 2 from affecting the problem of positioning precision in the process of stopping operating because skidding.It is effective that it has locking, the advantage that accurate positioning is high.This headstock also comprises a control system, and described control system is electrically connected with servomotor 3, and control system can be sent pulse signal control servomotor 3 and determines angular turn.Utilize control system to send pulse signal, control servomotor 3 and complete shutdown and determine angular turn, reach precise positioning and calibration function.
This machine tool head box adopts the instantaneous start and stop of control system control servomotor 3 and determines angular turn, can realize accurate calibration positioning function, utilize Timing Belt 6 to take turns with Timing Belt 6 as transmission mechanism, also can facilitate the start and stop of accurate angle, therefore possesses calibration precision high, the advantage of convenient processing.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendments or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (3)
1. one kind possesses the machine tool head box of accurate calibration function, comprise casing (1) and be arranged in the main shaft (2) in casing (1), described main shaft (2) one end is fixed with the fixture of energy clamping workpiece, the other end is connected with the driving mechanism that energy drive shaft (2) is rotated, it is characterized in that, described driving mechanism comprises servomotor (3) and the transmission mechanism being connected with servomotor (3) output shaft, described transmission mechanism by power transmission to main shaft (2), described transmission mechanism comprises the input belt wheel (5) that is arranged at the output pulley (4) on servomotor (3) output shaft and is arranged at main shaft (2) end, between described output pulley (4) and input belt wheel (5), connect by Timing Belt (6).
2. the machine tool head box that possesses accurate calibration function according to claim 1, is characterized in that, described output pulley (4) and input belt wheel (5) are Timing Belt (6) wheel.
3. the machine tool head box that possesses accurate calibration function according to claim 1 and 2, it is characterized in that, this headstock also comprises a control system, described control system is electrically connected with servomotor (3), and control system can be sent pulse signal control servomotor (3) and determines angular turn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859160.2U CN203887237U (en) | 2013-12-20 | 2013-12-20 | Machine tool headstock with precise indexing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859160.2U CN203887237U (en) | 2013-12-20 | 2013-12-20 | Machine tool headstock with precise indexing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203887237U true CN203887237U (en) | 2014-10-22 |
Family
ID=51713685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320859160.2U Expired - Fee Related CN203887237U (en) | 2013-12-20 | 2013-12-20 | Machine tool headstock with precise indexing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203887237U (en) |
-
2013
- 2013-12-20 CN CN201320859160.2U patent/CN203887237U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20181220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |