CN104632934A - Servo turret head overload protection device - Google Patents
Servo turret head overload protection device Download PDFInfo
- Publication number
- CN104632934A CN104632934A CN201410757654.9A CN201410757654A CN104632934A CN 104632934 A CN104632934 A CN 104632934A CN 201410757654 A CN201410757654 A CN 201410757654A CN 104632934 A CN104632934 A CN 104632934A
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- axle sleeve
- steel ball
- end axle
- spring
- sleeve
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Abstract
The invention provides a servo turret head overload protection device. The protection device comprises a drive side shaft sleeve (1), a steel ball (3), a blocking block (6), a bearing (2), a spring (4), a driven side shaft sleeve (11), a bolt (12), a clamping sleeve (10) and a moving shaft sleeve (9), wherein one side of the driven side shaft sleeve (11) is connected with the drive side shaft sleeve (1), and the other side of the driven side shaft sleeve (11) is connected with the clamping sleeve (10); the bearing (2) is located between the drive side shaft sleeve (1) and the driven side shaft sleeve (11); the moving shaft sleeve (9) is located outside the driven side shaft sleeve (11); the end face of the drive side shaft sleeve (1) is provided with grooves (1a), the driven side shaft sleeve (11) is provided with a first steel ball hole, and the steel ball (3) is arranged in the first steel ball hole. According to the servo turret head overload protection device, a mechanical overload protection mechanism is adopted, the fault clearing process is simplified while a knife rest is protected effectively, and the fault clearing and debugging cycle is shortened.
Description
Technical field
The present invention relates to numerical control machine tool Servo Turret knife rest field, be specially a kind of Servo Turret knife rest overload protection arrangement.
Background technique
Servo Turret knife rest, being called for short servo saddle, is the core functional components of numerical control machine tool.Lathe is when real work, and due to reasons such as misoperations, the situation such as cause collision, load excessive, makes knife rest motor or pinion unit be damaged, even occur accident.Further, after overload fault appears in knife rest, often need cutter setting frame to carry out dismounting, more time and manpower need be expended.Therefore, be necessary to design a kind of servo saddle overload protection arrangement, ensure that knife rest can not cause too large damage when running into emergency situations, and conveniently can carry out failture evacuation, as early as possible device is restored, resume production.
Summary of the invention
Technical problem: the invention provides a kind of Servo Turret knife rest overload protection arrangement, this device is between knife rest actuating motor and pinion unit.When knife rest normally works, motor torque effectively can be passed to pinion unit by this device; When the emergency situations such as collisions appears in lathe, there is circumference disengagement in these mechanism two ends, no longer can carry-over moment, thus make its motor or pinion unit can not be damaged because load is excessive.Meanwhile, when carrying out knife rest failture evacuation, only need carry out simple operations to this overload protection arrangement, knife rest just can be made to recover normal, again come into operation.
Summary of the invention: for solving the problems of the technologies described above, technological scheme provided by the invention is: a kind of Servo Turret knife rest overload protection arrangement, and this protective gear comprises master end axle sleeve, steel ball, block, bearing, spring, slave end axle sleeve, bolt, gripping sleeve, mobile axle sleeve; Wherein,
Slave end axle sleeve side is connected with master end axle sleeve, and opposite side is connected with gripping sleeve; Bearing is between master end axle sleeve and slave end axle sleeve; Mobile axle sleeve is positioned at outside slave end axle sleeve;
Fluted on the end face of master end axle sleeve, slave end axle sleeve has the first steel ball hole, steel ball is placed in the first steel ball hole, and block is also placed in the first steel ball hole, by spring force block and steel ball press-in groove;
Block inside is provided with the second steel ball hole, lays spring and steel ball in the second steel ball hole; The cylindrical of the other end of slave end axle sleeve has annular spring and mobile axle sleeve, and the tapped hole on slave end axle sleeve is connected together gripping sleeve and slave end axle sleeve by bolt, compresses mobile axle sleeve by annular spring simultaneously.
Preferably, master end axle sleeve, mobile axle sleeve, slave end axle sleeve, steel ball, block form protective gear clutch mechanism; Steel ball is positioned at the first steel ball hole of slave end axle sleeve, when master end axle sleeve is relative with slave end axle sleeve fix time, i.e. protective gear carry-over moment, clutch mechanism closes, and steel ball is by block and groove corresponding to spring press-in master end axle sleeve; When master end axle sleeve and slave end axle sleeve relatively rotate, namely protective gear cannot carry-over moment, and clutch mechanism departs from, and steel ball exits groove, and block no longer compresses steel ball due to spring and steel ball effect.
Preferably, mobile axle sleeve, spring, gripping sleeve form protective gear resetting-mechanism; Time not operating, mobile axle sleeve is enclosed within outside slave end axle sleeve, and one end is by spring compression, and the other end and gripping sleeve are fitted; After fixing a breakdown, promote mobile axle sleeve and depart from gripping sleeve, Compress Spring, resets to protective gear simultaneously.
Beneficial effect: the present invention adopts mechanical overload protecting mechanism, while available protecting knife rest, also simplifies the exclusion process of fault, shortens the cycle of failture evacuation and debugging; Initiatively survey axle sleeve and slave end axle sleeve is keyway arrangements, be used for fixing motor output shaft and pinion unit power input shaft respectively, motor and protective gear are installed more for convenience.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is slave end axle sleeve, gripping sleeve scheme of installation;
Fig. 3 is the A-A sectional view of Fig. 1;
Fig. 4 is the B-B sectional view of Fig. 1;
Fig. 5 is the structural representation of the present invention when knife rest runs well;
Fig. 6 is the structural representation of the present invention when overload occurs knife rest;
Fig. 7 is the structural representation of the present invention when knife rest resets;
1-master end axle sleeve in figure, 1a-groove; 2-bearing; 3-steel ball; 4-spring; 5-steel ball; 6-block; 7-spring; 8-spring; 9-moves axle sleeve; 10-gripping sleeve; 11-slave end axle sleeve, 11a-steel ball hole; 12-fixing bolt.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
Servo Turret knife rest overload protection arrangement provided by the invention, this device is between knife rest actuating motor and pinion unit.When knife rest normally works, motor torque effectively can be passed to pinion unit by this device; When the emergency situations such as collisions appears in lathe, there is circumference disengagement in these mechanism two ends, no longer can carry-over moment, thus actuating motor and pinion unit all can not be damaged because load is excessive.Meanwhile, when carrying out knife rest failture evacuation, only need carry out simple operations to this overload protection arrangement, knife rest just can be made to recover normal, again come into operation.
This protective gear comprises master end axle sleeve 1, steel ball 3, block 6, bearing 2, spring 4, slave end axle sleeve 11, bolt 12, gripping sleeve 10, mobile axle sleeve 9; Wherein,
Slave end axle sleeve 11 side is connected with master end axle sleeve 1, and opposite side is connected with gripping sleeve 10; Bearing 2 is between master end axle sleeve 1 and slave end axle sleeve 11; Mobile axle sleeve 9 is positioned at outside slave end axle sleeve 11;
Fluted 1a on the end face of master end axle sleeve 1, slave end axle sleeve 11 has the first steel ball hole, and steel ball 3 is placed in the first steel ball hole, and block 6 is also placed in the first steel ball hole, by spring 4 elastic force, block 6 and steel ball 3 is pressed into groove 1a;
Block 6 inside is provided with the second steel ball hole, lays spring 4 and steel ball 5 in the second steel ball hole; The cylindrical of the other end of slave end axle sleeve has annular spring 4 and mobile axle sleeve 9, and the tapped hole on slave end axle sleeve 11 is connected together gripping sleeve 10 and slave end axle sleeve 11 by bolt, compresses mobile axle sleeve 9 by annular spring simultaneously.
Master end axle sleeve 1, mobile axle sleeve 9, slave end axle sleeve 11, steel ball 3, block 6 form protective gear clutch mechanism; Steel ball 3 is positioned at the first steel ball hole of slave end axle sleeve 11, when master end axle sleeve 1 is relative with slave end axle sleeve 11 fix time, i.e. protective gear carry-over moment, clutch mechanism closes, and steel ball 3 is pressed into groove 1a corresponding to master end axle sleeve by block 6 and spring 7; When master end axle sleeve 1 relatively rotates with slave end axle sleeve 11, namely protective gear cannot carry-over moment, and clutch mechanism departs from, and steel ball 3 exits groove 1a, and block 6 no longer compresses steel ball 3 because spring 4 and steel ball 5 act on.
Mobile axle sleeve 9, spring 8, gripping sleeve 10 form protective gear resetting-mechanism; Time not operating, mobile axle sleeve 9 is enclosed within outside slave end axle sleeve 11, and one end is compressed by spring 8, and the other end and gripping sleeve 10 are fitted; After fixing a breakdown, promote mobile axle sleeve 9 and depart from gripping sleeve 10, Compress Spring 8, resets to protective gear simultaneously.
As shown in Figure 1 and Figure 2, master end axle sleeve 1 end face exists cone-shaped groove 1a, groove 1a in circumferential uniform arrangement, has 4 on end face; 1a is corresponding with steel ball 3 for master end axle sleeve 1 facing groove, and when knife rest runs well, steel ball 3 is positioned at respective slot 1a, and is compressed by block 6 and spring 7; As shown in Figure 1, Figure 3, spring 4 and steel ball 5 are positioned at block 6, and steel ball 3, block 6 and spring 7 are positioned at the steel ball hole 11a of slave end axle sleeve 11.
Master end axle sleeve 1 is corresponding with servo saddle power input shaft, and is connected with keyway by key.As shown in Figure 4, slave end axle sleeve 11 is connected by fixing bolt 12 with gripping sleeve 10, and meanwhile, gripping sleeve 10 compresses mobile axle sleeve 9; When after slave end installation, the mounting hole that slave end axle sleeve 11 forms jointly with gripping sleeve 10 is connected with pinion unit output shaft.
The servo saddle overload protection arrangement of the application's design facilitates the installation and debugging of motor; Master end end face of shaft bush is designed with groove, and slave end axle sleeve opposite position has steel ball hole, and when the moment of overload protection arrangement transmission is less than rating value, block and spring can be pressed in groove steel ball, and groove and steel ball realize gapless carry-over moment; During overload, steel ball drives block reverse compression spring, steel ball departs from groove, and relatively with master end axle sleeve to skid, and move to side due to block, steel ball in the spring compression block of block inside is moved laterally, steel ball in block is entered in the circular hole of slave end axle sleeve, thus it is relative fixing that block and passive side shaft are overlapped; Now, cannot moment transmission be carried out between knife rest motor output shaft and pinion unit input shaft, just actuating motor and pinion unit be played a protective role; After fault occurs, promote mobile axle sleeve and make steel ball in block reenter block, adjustment master end axle sleeve and slave end axle sleeve relative position, make steel ball be pressed in groove, carry-over moment again.
Figure 5 shows that the structural representation of the present invention when knife rest runs well.In the moment shown in Fig. 5, steel ball 3, by block 6, is pressed in groove 1a by spring 7, and therefore, moment can be passed to passive side shaft by master end axle sleeve 1 by steel ball 3 and overlap 11; By selecting the crush of spring 7 in advance, when can ensure that protective gear is in carry-over moment nominal value range, the situations such as skidding can not be there is.
In time there is overload in knife rest, need the moment of transmission excessive, steel ball 3 just starts to exit groove 1a under carry-over moment effect, master end axle sleeve 1 and passive side shaft overlap 11 and relative angular displacement occur, until steel ball 3 exits groove 1a completely, reach structure as shown in Figure 6, steel ball 5 is headed into passive side shaft and overlaps in the circular hole of 11 sides by the spring 4 being originally in compressive state, under the effect of steel ball 5, block 6 and passive side shaft cover 11 are just in the position of geo-stationary, steel ball 3 also cannot get back to groove 1a and carry-over moment again, master end axle sleeve 1 and passive side shaft overlap 11 and circumferential the disengaging occur, so just protect knife rest motor and pinion unit, prevent overload torque from causing damage to it.
When fixing a breakdown and protective gear will be restored, undertaken moving and Compress Spring 7 by originally overlapping the 11 mobile axle sleeves compressed 9 with passive side shaft, reach position shown in Fig. 7, now, steel ball 5 is headed in the hole of block 6 again, block 6 and passive side shaft overlap the state that 11 no longer keep geo-stationary, and spring 7 compresses block 6 and steel ball 3 again; Under the situation of not unclamping mobile axle sleeve 9; rotate master end axle sleeve 1; not super at most many 90 degree of transposition angle; once the groove 1a on master end axle sleeve 1 aims at again with steel ball 3; so steel ball 3 is just pressed in groove 1a again by spring 7 and block 6; unclamp mobile axle sleeve 9, protective gear restores, and knife rest just can normally work again.
Claims (3)
1. a Servo Turret knife rest overload protection arrangement, it is characterized in that, this protective gear comprises master end axle sleeve (1), steel ball (3), block (6), bearing (2), spring (4), slave end axle sleeve (11), bolt (12), gripping sleeve (10), mobile axle sleeve (9); Wherein,
Slave end axle sleeve (11) side is connected with master end axle sleeve (1), and opposite side is connected with gripping sleeve (10); Bearing (2) is positioned between master end axle sleeve (1) and slave end axle sleeve (11); Mobile axle sleeve (9) is positioned at slave end axle sleeve (11) outside;
On the end face of master end axle sleeve (1) fluted (1a), (11) have the first steel ball hole with slave end axle sleeve, steel ball (3) is placed in the first steel ball hole, block (6) is also placed in the first steel ball hole, by spring (4) elastic force block (6) and steel ball (3) press-in groove (1a);
Block (6) inside is provided with the second steel ball hole, lays spring (4) and steel ball (5) in the second steel ball hole; The cylindrical of the other end of slave end axle sleeve has annular spring (4) and mobile axle sleeve (9), tapped hole on slave end axle sleeve (11) is connected together gripping sleeve (10) and slave end axle sleeve (11) by bolt, compresses mobile axle sleeve (9) by annular spring simultaneously.
2. Servo Turret knife rest overload protection arrangement according to claim 1, is characterized in that: master end axle sleeve (1), mobile axle sleeve (9), slave end axle sleeve (11), steel ball (3), block (6) form protective gear clutch mechanism; Steel ball (3) is positioned at the first steel ball hole of slave end axle sleeve (11), when master end axle sleeve (1) is relative with slave end axle sleeve (11) fix time, i.e. protective gear carry-over moment, clutch mechanism closes, and steel ball (3) is pressed into groove (1a) corresponding to master end axle sleeve by block (6) and spring (7); When master end axle sleeve (1) relatively rotates with slave end axle sleeve (11); namely protective gear cannot carry-over moment; clutch mechanism departs from; steel ball (3) exits groove (1a), and block (6) no longer compresses steel ball (3) because spring (4) and steel ball (5) act on.
3. Servo Turret knife rest overload protection arrangement according to claim 2, is characterized in that: mobile axle sleeve (9), spring (8), gripping sleeve (10) form protective gear resetting-mechanism; Time not operating, mobile axle sleeve (9) is enclosed within slave end axle sleeve (11) outside, and one end is compressed by spring (8), and the other end and gripping sleeve (10) are fitted; After fixing a breakdown, promote mobile axle sleeve (9) and depart from gripping sleeve (10), Compress Spring (8), resets to protective gear simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410757654.9A CN104632934B (en) | 2014-12-10 | 2014-12-10 | Servo Turret knife rest overload protection arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410757654.9A CN104632934B (en) | 2014-12-10 | 2014-12-10 | Servo Turret knife rest overload protection arrangement |
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| CN104632934A true CN104632934A (en) | 2015-05-20 |
| CN104632934B CN104632934B (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410757654.9A Active CN104632934B (en) | 2014-12-10 | 2014-12-10 | Servo Turret knife rest overload protection arrangement |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984995A (en) * | 2017-05-24 | 2017-07-28 | 东南大学 | Numerically-controlled slide machining overload protection device |
| CN111089124A (en) * | 2019-12-31 | 2020-05-01 | 大连橡胶塑料机械有限公司 | Mechanical full-disengaging overload protection clutch |
| CN111895003A (en) * | 2020-07-07 | 2020-11-06 | 王永涛 | Friction-proof device of torque limiter |
| CN117248832A (en) * | 2023-11-20 | 2023-12-19 | 烟台鲁东勘察测绘有限公司 | Soil layer exploration drilling device with overload protection |
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| US4294340A (en) * | 1978-12-09 | 1981-10-13 | Jean Walterscheid Gmbh | Overload clutch |
| US4538715A (en) * | 1981-12-24 | 1985-09-03 | Jean Walterscheid Gmbh | Overload clutch with vibration protection mechanism |
| JPH03117730A (en) * | 1989-09-30 | 1991-05-20 | Tsubakimoto Emason:Kk | Hand-reset type overload clutch |
| DE102004031693A1 (en) * | 2004-06-30 | 2006-01-26 | Chr. Mayr Gmbh + Co Kg | Mechanical overload clutch, has axially non-displaceable and displaceable clutch parts, and receiver sending offset signal as function of distance of component of sensor from latter clutch part to indicate switching status of clutch |
| CN102319910A (en) * | 2011-08-05 | 2012-01-18 | 沈阳机床（集团）设计研究院有限公司 | Synchronous overload protection structure for servo tool post |
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| CN102527877A (en) * | 2010-12-31 | 2012-07-04 | 江苏亚威机床股份有限公司 | Main transmission overload protection mechanism of mechanical servo numerical control turrent punch press |
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2014
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4294340A (en) * | 1978-12-09 | 1981-10-13 | Jean Walterscheid Gmbh | Overload clutch |
| US4538715A (en) * | 1981-12-24 | 1985-09-03 | Jean Walterscheid Gmbh | Overload clutch with vibration protection mechanism |
| JPH03117730A (en) * | 1989-09-30 | 1991-05-20 | Tsubakimoto Emason:Kk | Hand-reset type overload clutch |
| DE102004031693A1 (en) * | 2004-06-30 | 2006-01-26 | Chr. Mayr Gmbh + Co Kg | Mechanical overload clutch, has axially non-displaceable and displaceable clutch parts, and receiver sending offset signal as function of distance of component of sensor from latter clutch part to indicate switching status of clutch |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984995A (en) * | 2017-05-24 | 2017-07-28 | 东南大学 | Numerically-controlled slide machining overload protection device |
| CN106984995B (en) * | 2017-05-24 | 2019-04-30 | 东南大学 | Numerically-controlled slide machining overload protective device |
| CN111089124A (en) * | 2019-12-31 | 2020-05-01 | 大连橡胶塑料机械有限公司 | Mechanical full-disengaging overload protection clutch |
| CN111895003A (en) * | 2020-07-07 | 2020-11-06 | 王永涛 | Friction-proof device of torque limiter |
| CN117248832A (en) * | 2023-11-20 | 2023-12-19 | 烟台鲁东勘察测绘有限公司 | Soil layer exploration drilling device with overload protection |
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| Publication number | Publication date |
|---|---|
| CN104632934B (en) | 2017-06-20 |
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