CN102319910A - Synchronous overload protection structure for servo tool post - Google Patents
Synchronous overload protection structure for servo tool post Download PDFInfo
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- CN102319910A CN102319910A CN201110223225A CN201110223225A CN102319910A CN 102319910 A CN102319910 A CN 102319910A CN 201110223225 A CN201110223225 A CN 201110223225A CN 201110223225 A CN201110223225 A CN 201110223225A CN 102319910 A CN102319910 A CN 102319910A
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- axle sleeve
- steel ball
- conical
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Abstract
The invention discloses a synchronous overload protection structure for a servo tool post, and relates to the field of tool posts for numerical control machines. The structure comprises a driving shaft sleeve, a corrugated pipe connector, steel balls, a movable ring, a disk spring and a driven shaft sleeve; a conical body is sleeved on the driving shaft sleeve, automatically centered and conical engaging claws are arranged on the surface of the conical body, and the engaging claws are arranged circumferentially and are conical in the axial direction; the corrugated pipe connector is provided with a conical ring in the same shape as the conical body, the conical body is in fit transmission with the conical ring, and the end face of the corrugated pipe connector is provided with a groove; and the driven shaft sleeve is provided with steel ball holes, and the steel balls are arranged in the steel ball holes and pressed into the groove in the end face of the corrugated pipe connector through the movable ring and the disk spring. The structure has the effect of transmitting torque, the steel balls slide relative to the groove in overload so as to protect a servo motor, the servo motor is conveniently installed due to the conical body and the conical ring, and the fault clearing process is simplified due to the circumferential non-centrosymmetric groove.
Description
Technical field
The invention relates to Digit Control Machine Tool and uses the knife rest field, is specially a kind of servo saddle and uses the synchronized model overcurrent protection structure.
Background technology
Numerically-controlled slide is the important core functional part of numerically controlled lathe and turning center, and its performance quality directly influences the complete machine performance of lathe.Lathe is in use owing to reasons such as maloperations, can take place to collide and the overload phenomenon, in order to reduce maloperation to the adverse effect that lathe brings, is necessary the design protection structure, prevents to collide and transships when taking place damaging influence to knife rest.
Knife rest is after breaking down; Fix a breakdown and often need dismantle knife rest, after reinstalling, need carry out the debugging at zero point to electrical equipment again because the motor zero position changes; So just prolonged the cycle that fault is got rid of and debugged, normal production has been had a negative impact.
Summary of the invention
In order to solve the problem of above-mentioned existence; The invention provides a kind of servo saddle to use the synchronized model overcurrent protection structure; Through this structure power is passed to the tool holder body power input shaft by servomotor, during overload servo saddle is shielded, and Installation and Debugging are convenient.
The purpose of the invention realizes through following technical proposals: servo saddle is used the synchronized model overcurrent protection structure; It is characterized in that: comprise master end axle sleeve, bellows connector, steel ball, shift(ing) ring, disc spring and slave end axle sleeve, on the axle sleeve of master end bullet is arranged, arranging automatic centering and tapered engaged claw on the surface of bullet; The engaged claw circumferential array; Axially for taper, the conical ring identical shaped with bullet arranged on the bellows connector, bullet cooperates transmission with conical ring; Fluted on the end face of bellows connector; The steel ball hole is arranged on the slave end axle sleeve, and steel ball places in the steel ball hole, and is pressed in the end face upper groove of bellows connector through shift(ing) ring and disc spring.
Described master end axle sleeve and slave end axle sleeve are the clamped-in style axle sleeve structure.
It is conical that groove on the described bellows connector is, and the axis non-centrosymmetry is arranged in the end face upper edge of bellows connector, and the steel ball hole is axis non-centrosymmetry arrangement in slave end axle sleeve upper edge, and arrangement position is identical with groove location.
Between slave end axle sleeve and disc spring, be provided with the adjustment nut.
The beneficial effect of the invention is: said structure is adopted in the invention; On the axle sleeve of master end bullet is arranged; Corresponding with it is the conical ring on the bellows connector, and bullet can insert conical ring, and bullet cooperates the no back clearance of realizing moment of torsion to transmit with conical ring.Master end axle sleeve and bellows connector adopt split-type structural; Owing to do not adopt screw to fix master end axle sleeve and bellows; Body structure has been simplified in the design that servo saddle body box parts saves pilot hole, the user of this structure the installing/dismounting and the debugging of motor; Fluted on the end face of bellows connector; Corresponding with it is the steel ball hole on the slave end axle sleeve; Steel ball places in the steel ball hole, and is pressed in the groove through shift(ing) ring and disc spring, and the moment of torsion that transmits when the synchronized model overcurrent protection structure is during less than rated value; Shift(ing) ring and disc spring are pressed into steel ball in the groove, and groove, steel ball and steel ball hole zero-clearance transmit moment of torsion; During overload, steel ball drives shift(ing) ring and moves the reverse compression disc spring, and steel ball breaks away from groove, and steel ball skids with the bellows connector in the steel ball hole relatively, and moment of torsion can't be delivered on the servomotor on the tool holder body power input shaft, to its protective effect of servomotor; Moment of torsion is transmitted in groove, steel ball and the steel ball hole of adopting non-centrosymmetry vertically to arrange; After fault takes place, have only slave end axle sleeve and master end axle sleeve to relatively rotate 360 ° after, the steel ball hole could overlap the transmission moment of torsion once more with groove; Guarantee that servomotor takes place to have identical dead-center position with the eliminating front and back in fault; Need not to carry out to realize reworking of servo saddle under the electric adjusting, simplified the troubleshooting of faults process, shortened that fault is got rid of and the cycle of debugging; Master end axle sleeve and slave end axle sleeve are that the clamped-in style axle sleeve structure is used for clamping motor axle and servo saddle body power input shaft respectively, and the use of clamped-in style axle sleeve structure guarantees the seamless connectivity of motor shaft, servo saddle body power input shaft and shaft room; Through the initial compression amount of adjustment nut adjusting disc spring, thereby realize setting to the disc spring pretightning force.
Description of drawings
Fig. 1 is that the invention synchronized model overcurrent protection structure is used sketch map on servo saddle.
Fig. 2 is the structural representation of the invention synchronized model overcurrent protection structure.
Fig. 3 is an A-A sectional drawing among Fig. 2.
Fig. 4 is the surface structure sketch map of the invention synchronized model overcurrent protection structure.
Fig. 5 is the principle schematic of the invention groove, steel ball hole and steel ball transmission.
Operation principle sketch map when Fig. 6 is the invention generation overload.
Fig. 7 be the C of Fig. 2 to view, (being bellows connector end view).
Fig. 8 is the B-B sectional drawing of Fig. 2, (being steel ball force analysis sketch map).
Among the figure, I, servomotor; II, synchronized model overcurrent protection structure; III, power input shaft; IV, near switch; V, cutterhead; VI, dynamic tool apron; 1, master end axle sleeve; 1.1, the clamped-in style axle sleeve structure; 1.2, bullet; 2, bellows connector; 2.1, conical ring; 2.2, bellows; 2.3, groove; 3, steel ball; 4, shift(ing) ring; 5, disc spring; 6, adjustment nut; 7, slave end axle sleeve; 7.1, the steel ball hole.
The specific embodiment
Like Fig. 1 and Fig. 2, shown in Figure 3, the motor shaft of servomotor I links to each other with the master end axle sleeve 1 of synchronized model overcurrent protection structure II, and the power input shaft III of servo saddle body links to each other with the slave end axle sleeve 7 of synchronized model overcurrent protection structure II.Be equipped with on the servo saddle body near the switch IV, confirm whether to transship through measuring shift(ing) ring 4 electrical signal of reaction.The power input shaft III drives cutterhead V and dynamic tool apron VI through the drive mechanism and the clutch structure (specific constructive form is omitted, and does not draw among Fig. 1) of servo saddle body interior.
Like Fig. 2 and Fig. 3, shown in Figure 4, synchronized model overcurrent protection structure II mainly is made up of: master end axle sleeve 1, bellows connector 2, steel ball 3, shift(ing) ring 4, disc spring 5, adjustment nut 6 and slave end axle sleeve 7.Master end axle sleeve 1 is the clamped-in style axle sleeve, and clamped-in style axle sleeve structure 1.1 is used for the clamping motor axle, guarantees the seamless connectivity of motor shaft and shaft room.Bullet 1.2 is arranged on the master end axle sleeve 1, arranging automatic centering and tapered engaged claw on the surface of bullet 1.2, the engaged claw circumferential array axially is taper.Corresponding with it is the conical ring 2.1 on the bellows connector 2, and conical ring 2.1 is identical shaped with bullet 1.2, and bullet 1.2 can insert conical ring 2.1, and the two cooperates transmission.
When motor is installed; Master end axle sleeve 1 is the clamped-in style axle sleeve, and clamped-in style axle sleeve structure 1.1 is used for the clamping motor axle, and bullet 1.2 is inserted conical ring 2.1 vertically; Bellows connector 2 axially compresses in advance; Bullet 1.2 realizes that with conical ring 2.1 the no back clearance of moment of torsion transmits, because crush is very little, can not produce harmful effect to bellows and supporting construction.Master end axle sleeve 1 adopts split-type structural with bellows connector 2, is convenient to motor and installs, and during the assembly and disassembly debugging, owing to there is not hold-down screw, saves the design of servo saddle body upper box class part assembling hole, has simplified the structure of box parts.Have bellows 2.2 to transmit moment of torsion on the bellows connector 2, the use of bellows has improved the centering capacity of this structure and has reversed just.
Like Fig. 2 and shown in Figure 7, fluted 2.3 on the end face of bellows connector 2, it is conical that groove 2.3 is, and on the end face of bellows connector 2, circumferentially arrange, and the axis of 2.3 pairs of bellows connectors 2 of groove is taked the non-centrosymmetry spread pattern.Corresponding with it is the steel ball hole 7.1 on the slave end axle sleeve 7, and steel ball 3 places in the steel ball hole 7.1, and is pressed in the groove 2.3 through shift(ing) ring 4 and disc spring 5.Through the initial compression amount that adjustment nut 6 is regulated disc spring 5, the pretightning force of disc spring 5 is set.
As shown in Figure 5, the moment of torsion that the synchronized model overcurrent protection structure transmits is during less than rated value, and shift(ing) ring 4 is pressed into steel ball 3 in the groove 2.3 with disc spring 5, and groove 2.3, steel ball 3 and steel ball hole 7.1 zero-clearances transmit moment of torsion, detect less than signal near the switch IV.
Like Fig. 6 and shown in Figure 8, when moment of torsion increased on the tool holder body power input shaft III, the directed force F n that groove 2.3 and steel ball are 3 increased; When the axial thrust load Fa of active force Fn increased to the pretightning force F0 greater than disc spring 5, steel ball 3 drove shift(ing) rings 4 and moves reverse compression disc spring 5, and steel ball 3 breaks away from grooves 2.3; Steel ball 3 skids with bellows connector 2 in steel ball hole 7.1 relatively; Shift(ing) ring 4 moves under steel ball 3 compressings, detects signal near the switch IV, confirms to transship.This moment, moment of torsion can't be delivered on the servomotor I on the tool holder body power input shaft III, and the servomotor I is shielded owing to the generation of skidding.
When fixing a breakdown, regulate slave end axle sleeve 7, make it with respect to 1 rotation of master end axle sleeve, when steel ball hole 7.1 during with groove 2.3 corresponding coincidences, steel ball 3 is pressed in the groove 2.3 under the effect of shift(ing) ring 4 and disc spring 5 once more, near the detection of switch IV less than signal.Because groove 2.3 is axis non-centrosymmetry arrangement in the end face upper edge of bellows connector 2; Slave end axle sleeve 7 relatively rotates 360 ° with master end axle sleeve 1, and steel ball hole 7.1 could overlap with its corresponding groove 2.3 once more, thereby after guaranteeing that fault is got rid of; Servomotor I and fault have identical dead-center position before taking place; Need not to carry out to realize reworking of servo saddle under the electric adjusting, simplified the troubleshooting of faults process, shortened that fault is got rid of and the cycle of debugging.
Claims (5)
1. servo saddle is used the synchronized model overcurrent protection structure, it is characterized in that: comprise master end axle sleeve, bellows connector, steel ball, shift(ing) ring, disc spring and slave end axle sleeve, on the axle sleeve of master end bullet is arranged; Arranging automatic centering and tapered engaged claw on the surface of bullet, the engaged claw circumferential array axially is taper; The conical ring identical shaped with bullet arranged on the bellows connector; Bullet cooperates transmission with conical ring, and is fluted on the end face of bellows connector, and the steel ball hole is arranged on the slave end axle sleeve; Steel ball places in the steel ball hole, and is pressed in the end face upper groove of bellows connector through shift(ing) ring and disc spring.
2. use the synchronized model overcurrent protection structure according to the described servo saddle of claim 1, it is characterized in that: described master end axle sleeve and slave end axle sleeve are the clamped-in style axle sleeve structure.
3. use the synchronized model overcurrent protection structure according to claim 1 or 2 described servo saddles; It is characterized in that: the groove on the described bellows connector is conical; And axis non-centrosymmetry arrangement in the end face upper edge of bellows connector; The steel ball hole is axis non-centrosymmetry arrangement in slave end axle sleeve upper edge, and arrangement position is identical with groove location.
4. use the synchronized model overcurrent protection structure according to claim 1 or 2 described servo saddles, it is characterized in that: between slave end axle sleeve and disc spring, be provided with the adjustment nut.
5. use the synchronized model overcurrent protection structure according to the described servo saddle of claim 3, it is characterized in that: between slave end axle sleeve and disc spring, be provided with the adjustment nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110223225A CN102319910A (en) | 2011-08-05 | 2011-08-05 | Synchronous overload protection structure for servo tool post |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110223225A CN102319910A (en) | 2011-08-05 | 2011-08-05 | Synchronous overload protection structure for servo tool post |
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| CN102319910A true CN102319910A (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110223225A Pending CN102319910A (en) | 2011-08-05 | 2011-08-05 | Synchronous overload protection structure for servo tool post |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481102A (en) * | 2012-06-08 | 2014-01-01 | 盐城纺织职业技术学院 | Feeding box polished rod output overload protection mechanism for horizontal lathe |
| CN104632934A (en) * | 2014-12-10 | 2015-05-20 | 东南大学 | Servo turret head overload protection device |
| CN105290860A (en) * | 2014-07-03 | 2016-02-03 | 池州市大正机械制造有限责任公司 | Polished rod protecting device |
| CN112372009A (en) * | 2020-10-08 | 2021-02-19 | 王荣云 | Numerical control metal cutting machine tool |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2134367C1 (en) * | 1998-03-18 | 1999-08-10 | Тярасов Герман Павлович | Spring-and-ball clutch |
| CN2539009Y (en) * | 2002-05-22 | 2003-03-05 | 哈尔滨煤矿机械研究所 | Torque-limiting overload protector |
| CN2929317Y (en) * | 2006-07-18 | 2007-08-01 | 中国石油天然气股份有限公司 | Pressure bearing type bias coupling |
| CN101117990A (en) * | 2007-09-18 | 2008-02-06 | 洪涛 | Zero-impact spring steel ball safety clutch |
| CN101547771A (en) * | 2006-12-05 | 2009-09-30 | 罗伯特·博世有限公司 | Handheld tool |
| CN201696514U (en) * | 2010-06-09 | 2011-01-05 | 襄樊市博亚机械有限公司 | Ball cage shaft joint with automatic overload protection and alarm function |
| CN202192272U (en) * | 2011-08-05 | 2012-04-18 | 沈阳机床（集团）设计研究院有限公司 | Synchronous type overload protecting structure for servo tool rest |
-
2011
- 2011-08-05 CN CN201110223225A patent/CN102319910A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2134367C1 (en) * | 1998-03-18 | 1999-08-10 | Тярасов Герман Павлович | Spring-and-ball clutch |
| CN2539009Y (en) * | 2002-05-22 | 2003-03-05 | 哈尔滨煤矿机械研究所 | Torque-limiting overload protector |
| CN2929317Y (en) * | 2006-07-18 | 2007-08-01 | 中国石油天然气股份有限公司 | Pressure bearing type bias coupling |
| CN101547771A (en) * | 2006-12-05 | 2009-09-30 | 罗伯特·博世有限公司 | Handheld tool |
| CN101117990A (en) * | 2007-09-18 | 2008-02-06 | 洪涛 | Zero-impact spring steel ball safety clutch |
| CN201696514U (en) * | 2010-06-09 | 2011-01-05 | 襄樊市博亚机械有限公司 | Ball cage shaft joint with automatic overload protection and alarm function |
| CN202192272U (en) * | 2011-08-05 | 2012-04-18 | 沈阳机床（集团）设计研究院有限公司 | Synchronous type overload protecting structure for servo tool rest |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481102A (en) * | 2012-06-08 | 2014-01-01 | 盐城纺织职业技术学院 | Feeding box polished rod output overload protection mechanism for horizontal lathe |
| CN105290860A (en) * | 2014-07-03 | 2016-02-03 | 池州市大正机械制造有限责任公司 | Polished rod protecting device |
| CN104632934A (en) * | 2014-12-10 | 2015-05-20 | 东南大学 | Servo turret head overload protection device |
| CN104632934B (en) * | 2014-12-10 | 2017-06-20 | 东南大学 | Servo Turret knife rest overload protection arrangement |
| CN112372009A (en) * | 2020-10-08 | 2021-02-19 | 王荣云 | Numerical control metal cutting machine tool |
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Application publication date: 20120118 |