CN2703611Y

CN2703611Y - Real-time automatic indexing device

Info

Publication number: CN2703611Y
Application number: CN 200420017992
Authority: CN
Inventors: 潘卫平
Original assignee: Wuhan University WHU
Current assignee: Wuhan University WHU
Priority date: 2004-05-08
Filing date: 2004-05-08
Publication date: 2005-06-08
Anticipated expiration: 2014-05-08

Abstract

The utility model discloses a real-time automatic indexing device, comprising a shell, an Indexing spindle which is driven by a driving device and a workpiece holding mechanism. An electromagnetic clutch is provided to limit the jiggle of the indexing spindle when the indexing spindle is static. The axis of the stepper motor or the servomotor which conducts the indexing movement by the spindle driving workpiece is connected with the torque input axis of the driving device. The utility model has the advantages of simple structure and high transmission accuracy.

Description

The real-time automatic dividing attachment of lathe

Technical field

The utility model relates to the real-time automatic dividing attachment of a kind of lathe, in particular for the real-time automatic dividing attachment of Metal Cutting Machine Tool.

Background technology

The tradition indexing means needs manually to shake dividing arm in use, and a large amount of concentric holes of arranging on the index dial is counted and positioning action, careless slightlyly promptly can make mistakes; More loaded down with trivial details is, needs the requirement according to the different five equilibriums of workpiece before the operation, calculates to determine the number of turns that dividing arm shakes and the location hole count of index dial by manual; During when the processing helicla flute or to the differential indexing of some particular values (change gear installation site difference), go back the requirement of fibrous root according to the motion transmission ratio, the moving equilibrium equation of utilization driving-chain calculates and installs the exchange change gear, and the big efficient of this method labour intensity is low.For this reason, also must dispose a large amount of standby change gears for selecting for use.

The utility model content

The purpose of this utility model provides the real-time automatic dividing attachment of a kind of lathe, and it passes through to shorten driving-chain and simplified structure, thereby can improve transmission accuracy and efficient.

The technical scheme that realizes the utility model purpose is: the real-time automatic dividing attachment of a kind of lathe, comprise: housing, the calibration main shaft and the workpiece grip mechanism that drive through transmission mechanism, it is characterized in that: have the electromagnetic clutch that limits its fine motion when the calibration main shaft is static, the axle of making the stepper motor of dividing movement or servomotor through the main shaft drives workpiece is connected with the torque power shaft of transmission mechanism.

And described transmission mechanism is a worm and gear; Motor is connected with housing through terminal pad, supporting base.

And electromagnetic clutch is sleeved on the main shaft, is provided with elastic part between its sliding end and the clutch seat board, and seat board is connected mutually with housing, and the stiff end of clutch is relative sliding end and establish and be connected with a side of worm gear in the axial direction.

And the elastic part of electromagnetic clutch is the axial elasticity pipe.

The utility model has the advantages that: 1. cancelled calibration porose disc device, internal helicoid gear pair and outside Pulley mechanism, shortened driving-chain, simplified the structure, thereby can improve transmission accuracy; 2. after replacing manual locking mechanism with electromagnetic clutch, realized more reliable auto lock; 3. the axle with stepper motor or servomotor is connected with the torque power shaft of transmission mechanism, can realize the automatic indexing of workpiece, and efficient is significantly improved.

Description of drawings

Fig. 1 is the cutaway view of the utility model structure.

Fig. 2 is the cutaway view at Figure 1A-A place.

The specific embodiment

With reference to Fig. 1, Fig. 2, the real-time automatic dividing attachment of a kind of lathe, comprise: housing 17, the calibration main shaft 2 and the workpiece grip mechanism 1 that drive through transmission mechanism 10, it is characterized in that: have the electromagnetic clutch 6 that when calibration main shaft 2 is static, limits its fine motion, drive through main shaft 2 that workpiece are made the stepper motor 11 of dividing movement or the axle of servomotor is connected with the torque power shaft 15 of transmission mechanism 10.

The axle of described stepper motor 11 or servomotor is connected with the torque power shaft 15 of transmission mechanism 10, typically refers to the two direct connection in this area, perhaps, is connected with yielding coupling 13 between the torque power shaft 15 of described motor shaft and transmission mechanism 10.

During work, drive the dividing movement that workpiece is made circumference in equal parts according to instruction by stepper motor 11 or servomotor.

Further technical scheme can be: described transmission mechanism 10 is preferably worm gear 3 worm screws 8, certainly, also can adopt other gear drives.Motor 11 is connected with housing 17 through terminal pad 12, supporting base 14.Suggestion: between housing 17 and supporting base 14, come supporting base 14 is located, with assurance motor 11, shaft coupling 13 and torque power shaft 15 triangular location be connected precision with the dead eye 16 of housing 9 and end face.

Further technical scheme can also be: electromagnetic clutch 6 is sleeved on the main shaft 2, be provided with elastic part 7 between its sliding end 5 and the clutch seat board 9, seat board 9 is connected mutually with housing 17, and the stiff end 4 of clutch 6 is relative sliding end 5 and establish and be connected with a side of worm gear 3 in the axial direction.When workpiece carries out machining in inactive state and to it (as the processing spur gear), the sliding end 5 of electromagnetic clutch 6 and stiff end 4 adhesive mutually, and worm gear 3 is fixed on the housing 17 by elastic part 7 and clutch base plate 9, to avoid influencing crudy because of the workpiece fine motion man-hour adding, described " fine motion " mainly is meant small footpath, axial float or vibration.

The elastic part 7 of described electromagnetic clutch 6 can be axial elasticity pipe, for example elastic bellows.

Claims

1. real-time automatic dividing attachment of lathe, comprise: housing, the calibration main shaft and the workpiece grip mechanism that drive through transmission mechanism, it is characterized in that: have the electromagnetic clutch that limits its fine motion when the calibration main shaft is static, the axle of making the stepper motor of dividing movement or servomotor through the main shaft drives workpiece is connected with the torque power shaft of transmission mechanism.

2. indexing means according to claim 1 is characterized in that: described transmission mechanism is a worm and gear; Motor is connected with housing through terminal pad, supporting base.

3. indexing means according to claim 2, it is characterized in that: electromagnetic clutch is sleeved on the main shaft, be provided with elastic part between its sliding end and the clutch seat board, seat board is connected mutually with housing, and the stiff end of clutch is relative sliding end and establish and be connected with a side of worm gear in the axial direction.

4. according to claim 1 or 2 or 3 described indexing means, it is characterized in that: the elastic part of electromagnetic clutch is the axial elasticity pipe.