CN204277612U - A kind of numerical facing head - Google Patents
A kind of numerical facing head Download PDFInfo
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- CN204277612U CN204277612U CN201420591743.6U CN201420591743U CN204277612U CN 204277612 U CN204277612 U CN 204277612U CN 201420591743 U CN201420591743 U CN 201420591743U CN 204277612 U CN204277612 U CN 204277612U
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Abstract
A kind of numerical facing head, it is fixed in saddle (1), saddle (1) is directly connected with the front-end of spindle of lathe again, main shaft connects drive saddle (1) by end face and rotates, described numerical facing head is constructed as follows: square ram (2), hollow servo force torque motor (3), locating shaft (4), ball-screw (5), coder connecting shaft (6), hollow absolute position encoder (7), angular contact ball bearing (8), nut seat (9), screw (14), motor stator (16), rotor (17).The creationary employing conducting slip ring of the utility model, as conversion line, solves electric machine casing and rotates the problem causing the control circuit wiring difficulty of hollow servo force torque motor 3.Its compact conformation, volume are little, sealing vibrationproof is functional, and it can realize good precision, and technique effect is excellent.The utility model has expected comparatively huge economic worth and social value.
Description
Technical field
The utility model relates to structural design and the applied technical field of numerical facing head, specifically provides a kind of new in structure and the obvious more excellent numerical facing head of technique effect.
Background technology
Current existing big-and-middle-sized numerical facing head transmission principle is usually as follows: worm screw by driven by motor, for providing slide plate feeding power; Gear is driven by milling spindle, provides the rotary power of rotary body; Rotary motion is got rid of to the impact of slide plate feeding by planet wheel differential mechanism, realizes the course feed of slide plate.
According to professional general knowledge, we know that differential attachment can realize the composition and decomposition moved, therefore differential attachment can get rid of the impact of rotary motion on slide plate feeding, thus solve the difficulty of transmission system in facing head design, but simultaneously often to cause driving-chain long for differential attachment, transmission is short of power, the not problem such as easy care, the problems such as manufacture difficulty and manufacturing cost are very high.So in prior art at several numerical facing head domain variability without related application.
People urgently wish to obtain the excellent numerical facing head of a kind of technique effect.
Utility model content
The purpose of this utility model is to provide the excellent numerical facing head of a kind of technique effect, and it is creatively applied difference structure and achieves emerging numerical facing head structural design.
The utility model provides a kind of numerical facing head, it is fixed in saddle 1, saddle 1 is directly connected with the front-end of spindle of lathe again, main shaft connects drive saddle 1 by end face and rotates, it is characterized in that: described numerical facing head is constructed as follows: square ram 2, hollow servo force torque motor 3, locating shaft 4, ball-screw 5, coder connecting shaft 6, hollow absolute position encoder 7, angular contact ball bearing 8, nut seat 9, locking nut 10, pressing plate 11, expansion sleeve 12, end cap 13, screw 14, gland 15, motor stator 16, rotor 17, encoder connects gland 18, wherein:
Ball-screw 5 two ends are connected to one by syndeton and square ram 2 two ends, the syndeton be connected to one in leading screw 5 two ends and the square ram 2 two ends specifically combination of locking nut 10, end cap 13 or the combination of expansion sleeve 12 and expansion sleeve gland 14;
The screw 14 of ball-screw 5 is connected on locating shaft 4, locating shaft 4 is mutually separated by the angular contact ball bearing 8 (it is angular contact ball bearing) of a pair back-to-back installation and the bottom of nut seat 9 and is formed matching relationship, and locating shaft 4 and nut seat 9 form to coordinate with outer ring with the inner ring of angular contact ball bearing 8 respectively and contact;
The inwall of locating shaft 4 and screw 14 are connected and fix as a whole; At the nut seat 9 being furnished with outside, angular contact ball bearing 8 place and the gland 15 being also provided with shutoff between screw 14 and being connected;
Motor stator 16, rotor 17 form the main composition part of hollow servo force torque motor 3 jointly; Motor stator 16, rotor 17 are all arranged and are arranged in nut seat 9 inner chamber; Motor stator 16 is arranged in the inner chamber on nut seat 9 top and the two is mutually permanently connected as a whole; Rotor 17 to be arranged in motor stator 16 inner chamber and to be therebetween matched in clearance; Rotor 17 and the coder connecting shaft 6 be sleeved on ball-screw 5 are mutually permanently connected as a whole, hollow absolute position encoder 7 is fixed on the upper proximal end place of nut seat 9, for form matched in clearance between the outer wall on hollow absolute position encoder 7 inwall and coder connecting shaft 6 top;
The be connected upper end place in gap of hollow absolute position encoder 7 inwall and both coder connecting shafts 6 is also provided with encoder and is connected gland 18, and encoder connects gland 18 and is fixedly connected with hollow absolute position encoder 7;
Hollow servo force torque motor 3 is drawn by the conducting slip ring conversion be arranged on main shaft tail end with the circuit being arranged on the hollow absolute position encoder 7 on coder connecting shaft 6, thus solves the powerup issue of hollow AC servo torque motor 3 in facing head.
Numerical facing head described in the utility model, also claimed following content:
Following structure is also provided with: gland 15, encoder connect gland 18, compressing tablet 19 in described numerical facing head; Meet following requirement particularly:
At the nut seat 9 being furnished with outside, angular contact ball bearing 8 place and the gland 15 being also provided with shutoff between screw 14 and being connected;
The be connected upper end place in gap of hollow absolute position encoder 7 inwall and both coder connecting shafts 6 is also provided with encoder and is connected gland 18, and encoder connects gland 18 and is fixedly connected with hollow absolute position encoder 7;
Compressing tablet 19 is for being sleeved on the circulus of screw 14 outside, and its lower surface and screw 14 bottom form end contact; Its inside portion, upper surface and outside portion form end contact with both inner ring bottoms of that angular contact ball bearing 8 of locating shaft 4 lower end and foot respectively simultaneously.
The syndeton that ball-screw 5 two ends and square ram 2 two ends are connected to one the specifically combination of locking nut 10, end cap 13 or the combination of expansion sleeve 12 and expansion sleeve gland 21; Wherein:
The combination of locking nut 10, end cap 13 is arranged in ball-screw 5 bottom, and end cap 13 is sleeved on the shaft part of proximal end, ball-screw 5 lower end, and end cap 13 is fixedly connected with as a whole with the bottom of square ram 2; Place below the end cap 13 that locking nut 10 is sleeved on ball-screw 5 bottom;
The combination of expansion sleeve 12 and expansion sleeve gland 21 is arranged in ball-screw 5 upper end, the hole Duan Chu of outer end of hole proximal end of ball-screw 5 is installed on ram 2 top, expansion sleeve gland 21 side of being arranged in, and expansion sleeve 12 is arranged in below expansion sleeve gland 21 and it is sleeved on ball-screw 5 upper end.
The utility model also has other to need the content illustrated briefly to enumerate as follows:
Angular contact ball bearing 8 is specially the angular contact thrust ball bearing of 60 degree of contact angles, and its effect is for for auxiliary Fixed Nut 14.
Numerical facing head described in the utility model adopts the screw 14 of hollow servo force torque motor 3 rotary actuation ball-screw 5 to rotate, screw 14 drives ball-screw 5 to do rectilinear motion, ball-screw 5 two ends are all connected with square ram 2, side's ram 2 does synchronous linear with ball-screw 5 and moves, and the turning cutting tool (such as lathe tool 20) on the side's of being arranged on ram 2 carries out radial cutting to workpiece.Hollow servo force torque motor 3 adds man-hour and main shaft and rotates and synchronously carry out, and axial feed drives Z axis leading screw 26 to drive main spindle box 22 to move realization by Z axis servomotor 29.The utility model uses torque motor to simplify mechanical transmission mechanism, facing head is had, and volume is little, lightweight, parts are few, high dynamic performance and high accuracy, project organization is compacter, driving-chain is the shortest, and semiclosed loop or closed-loop control had both obtained good precision, simplified structural design again, thus reduce manufacture difficulty, reduce manufacturing cost.
In order to solve the control problem of the hollow servo force torque motor 3 (alternating current generator) in rotating disk, adopt conducting slip ring as conversion line in technical scheme described in the utility model, solve electric machine casing and rotate the problem causing the control circuit wiring difficulty of hollow servo force torque motor 3.Because electric machine casing is with main motion rotary motion, the inconvenience that the electric wire of hollow servo force torque motor 3 brings can be avoided.In addition, hollow servo force torque motor 3 volume is little, lightweight, and project organization is compact.The sealing vibrationproof of hollow absolute position encoder 7 is functional, can overcome the deficiency of the conventional motor used on using in prior art.Amid all these factors, so select hollow servo force torque motor 3 and hollow absolute position encoder 7, semiclosed loop or closed-loop control can obtain good precision, can simplify structural design again.
The feature of hollow servo force torque motor 3 illustrates:
High dynamic performance and high accuracy can be realized smoothly
In machine tool industry and other field, be an eternal topic to the demand of high accuracy and high torque (HT) always.For Siemens's linear electric motors, its direct-driving motor solves these two conflicting targets well.This torque motor run in synchronous motor mode is suitable for rotating shaft and rotary table, and dynamically tool magazine and the lathe spindle that runs up.Torque motor is made up of stators and rotators (permanent magnet), and its high accuracy of nationality and high dynamic performance and transcendent.Be described as follows:
1. parts reduce, and performance improves
After using torque motor, just no longer need the mechanical transmission component such as shaft coupling or gear.Therefore required installing space significantly reduces.In addition, the minimizing of parts reduces number of connection and maintenance cost and Parts Inventory.And then reduce machine idle time, improve utilization rate.
2. Precision Machining
Torque motor eliminates mechanical transmission errors from principle.Because torque motor is directly integrated in machine construction, thus avoid unnecessary elastic deformation and transmission problem.Its advantage is very clear: can realize higher precision.
3. reduce the auxiliary process time
Owing to not adopting mechanical transmission component in torque motor, decrease friction, the auxiliary process time is significantly reduced, be conducive to realizing higher dynamic property.
4. gapless
Because torque motor does not need to adopt gear drive, therefore also just no longer there is well-known clearance issues.Thus the contour accuracy significantly improved when the direction of motion changes, and its repeatability precision also significantly improves.
5. with the torque motor of coolant jacket
For small axle diameter torque motor, linear induction motor system company of Siemens have employed a kind of efficiently cooling system of economy: water-cooled external cooling jacket, can ensure that motor temperature is stably maintained in prescribed limit.
6. easy to be integrated
Due to rotor and the stator pre-assembled of torque motor, and wiring is also standardized, so Siemens's torque motor can carry out integrated with existing machine construction easily.
7. large torque
Such as, the maximum output of Siemens's torque motor is 7430Nm.
The utility model proposes a kind of new numerical facing head structural design and application technology scheme, its creationary employing conducting slip ring, as conversion line, solves electric machine casing and rotates the problem causing the control circuit wiring difficulty of hollow servo force torque motor 3.It has compact conformation, volume is little, sealing vibrationproof is functional, can realize semiclosed loop or closed-loop control easily, and it can realize good precision, and technique effect is excellent.The utility model has expected comparatively huge economic worth and social value.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the utility model is described in further detail:
Fig. 1 is the part-structure simplified schematic diagram of certain the type horizontal boring and milling machine using numerical facing head;
Fig. 2 is the partial enlarged drawing of the numerical control flat-turning disc portion in Fig. 1 central authorities place slightly to the left dotted line frame;
Fig. 3 is the right view of the correspondence taking Fig. 1 as front view;
Fig. 4 is the top view of the correspondence taking Fig. 1 as front view.
Detailed description of the invention
Reference numeral implication is described as follows:
Saddle 1, side's ram 2, hollow servo force torque motor 3, locating shaft 4, ball-screw 5, coder connecting shaft 6, hollow absolute position encoder 7, angular contact ball bearing 8, nut seat 9, locking nut 10, pressing plate 11, expansion sleeve 12, end cap 13, screw 14, gland 15, motor stator 16, rotor 17, encoder connects gland 18, compressing tablet 19, lathe tool 20, expansion sleeve gland 21, main spindle box 22, conducting slip ring 23 with injection well downhole flow regulator oil distributor, frequency conversion mair motor 24, planetary reducer 25, Z axis leading screw 26, Z axis slide plate 27, Z axis speed reducer for servo motor 28, Z axis servomotor 29, workbench 30, lathe bed 31, slip steel guideway 32.
Embodiment 1
A kind of numerical facing head, it is fixed in saddle 1, and saddle 1 is directly connected with the front-end of spindle of lathe again, and main shaft connects drive saddle 1 by end face and rotates; Described numerical facing head is constructed as follows: square ram 2, hollow servo force torque motor 3, locating shaft 4, ball-screw 5, coder connecting shaft 6, hollow absolute position encoder 7, angular contact ball bearing 8, nut seat 9, locking nut 10, pressing plate 11, expansion sleeve 12, end cap 13, screw 14, gland 15, motor stator 16, rotor 17, encoder connect gland 18; Wherein:
Ball-screw 5 two ends are connected to one by syndeton and square ram 2 two ends;
The screw 14 of ball-screw 5 is connected on locating shaft 4, locating shaft 4 is mutually separated by the angular contact ball bearing 8 (it is angular contact ball bearing) of a pair back-to-back installation and the bottom of nut seat 9 and is formed matching relationship, and locating shaft 4 and nut seat 9 form to coordinate with outer ring with the inner ring of angular contact ball bearing 8 respectively and contact;
The inwall of locating shaft 4 and screw 14 are connected and fix as a whole; At the nut seat 9 being furnished with outside, angular contact ball bearing 8 place and the gland 15 being also provided with shutoff between screw 14 and being connected;
Motor stator 16, rotor 17 form the main composition part of hollow servo force torque motor 3 jointly; Motor stator 16, rotor 17 are all arranged and are arranged in nut seat 9 inner chamber; Motor stator 16 is arranged in the inner chamber on nut seat 9 top and the two is mutually permanently connected as a whole; Rotor 17 to be arranged in motor stator 16 inner chamber and to be therebetween matched in clearance; Rotor 17 and the coder connecting shaft 6 be sleeved on ball-screw 5 are mutually permanently connected as a whole, hollow absolute position encoder 7 is fixed on the upper proximal end place of nut seat 9, for form matched in clearance between the outer wall on hollow absolute position encoder 7 inwall and coder connecting shaft 6 top;
Hollow servo force torque motor 3 is drawn by the conducting slip ring conversion be arranged on main shaft tail end with the circuit being arranged on the hollow absolute position encoder 7 on coder connecting shaft 6, thus solves the powerup issue of hollow AC servo torque motor 3 in facing head.
Following structure is also provided with: gland 15, encoder connect gland 18, compressing tablet 19 in described numerical facing head; Meet following requirement particularly:
At the nut seat 9 being furnished with outside, angular contact ball bearing 8 place and the gland 15 being also provided with shutoff between screw 14 and being connected;
The be connected upper end place in gap of hollow absolute position encoder 7 inwall and both coder connecting shafts 6 is also provided with encoder and is connected gland 18, and encoder connects gland 18 and is fixedly connected with hollow absolute position encoder 7;
Compressing tablet 19 is for being sleeved on the circulus of screw 14 outside, and its lower surface and screw 14 bottom form end contact; Its inside portion, upper surface and outside portion form end contact with both inner ring bottoms of that angular contact ball bearing 8 of locating shaft 4 lower end and foot respectively simultaneously.
The syndeton that ball-screw 5 two ends and square ram 2 two ends are connected to one the specifically combination of locking nut 10, end cap 13 or the combination of expansion sleeve 12 and expansion sleeve gland 21; Wherein:
The combination of locking nut 10, end cap 13 is arranged in ball-screw 5 bottom, and end cap 13 is sleeved on the shaft part of proximal end, ball-screw 5 lower end, and end cap 13 is fixedly connected with as a whole with the bottom of square ram 2; Place below the end cap 13 that locking nut 10 is sleeved on ball-screw 5 bottom;
The combination of expansion sleeve 12 and expansion sleeve gland 21 is arranged in ball-screw 5 upper end, the hole Duan Chu of outer end of hole proximal end of ball-screw 5 is installed on ram 2 top, expansion sleeve gland 21 side of being arranged in, and expansion sleeve 12 is arranged in below expansion sleeve gland 21 and it is sleeved on ball-screw 5 upper end.
The present embodiment also has other to need the content illustrated briefly to enumerate as follows:
Angular contact ball bearing 8 is specially the angular contact thrust ball bearing of 60 degree of contact angles, and its effect is for for auxiliary Fixed Nut 14.
Numerical facing head described in the present embodiment adopts the screw 14 of hollow servo force torque motor 3 rotary actuation ball-screw 5 to rotate, screw 14 drives ball-screw 5 to do rectilinear motion, ball-screw 5 two ends are all connected with square ram 2, side's ram 2 does synchronous linear with ball-screw 5 and moves, and the turning cutting tool (such as lathe tool 20) on the side's of being arranged on ram 2 carries out radial cutting to workpiece.Hollow servo force torque motor 3 adds man-hour and main shaft and rotates and synchronously carry out, and axial feed drives Z axis leading screw 26 to drive main spindle box 22 to move realization by Z axis servomotor 29.The present embodiment uses torque motor to simplify mechanical transmission mechanism, facing head is had, and volume is little, lightweight, parts are few, high dynamic performance and high accuracy, project organization is compacter, driving-chain is the shortest, and semiclosed loop or closed-loop control had both obtained good precision, simplified structural design again, thus reduce manufacture difficulty, reduce manufacturing cost.
In order to solve the control problem of the hollow servo force torque motor 3 (alternating current generator) in rotating disk, adopt conducting slip ring as conversion line in technical scheme described in the present embodiment, solve electric machine casing and rotate the problem causing the control circuit wiring difficulty of hollow servo force torque motor 3.Because electric machine casing is with main motion rotary motion, the inconvenience that the electric wire of hollow servo force torque motor 3 brings can be avoided.In addition, hollow servo force torque motor 3 volume is little, lightweight, and project organization is compact.The sealing vibrationproof of hollow absolute position encoder 7 is functional, can overcome the deficiency of the conventional motor used on using in prior art.Amid all these factors, so select hollow servo force torque motor 3 and hollow absolute position encoder 7, semiclosed loop or closed-loop control can obtain good precision, can simplify structural design again.
Hollow servo force torque motor 3 can realize high dynamic performance and high accuracy smoothly, and its feature illustrates:
In machine tool industry and other field, be an eternal topic to the demand of high accuracy and high torque (HT) always.For Siemens's linear electric motors, its direct-driving motor solves these two conflicting targets well.This torque motor run in synchronous motor mode is suitable for rotating shaft and rotary table, and dynamically tool magazine and the lathe spindle that runs up.Torque motor is made up of stators and rotators (permanent magnet), and its high accuracy of nationality and high dynamic performance and transcendent.Be described as follows:
1. parts reduce, and performance just no longer needs the mechanical transmission component such as shaft coupling or gear after improving use torque motor.Therefore required installing space significantly reduces.In addition, the minimizing of parts reduces number of connection and maintenance cost and Parts Inventory.And then reduce machine idle time, improve utilization rate.
2. Precision Machining torque motor eliminates mechanical transmission errors from principle.Because torque motor is directly integrated in machine construction, thus avoid unnecessary elastic deformation and transmission problem.Its advantage is very clear: can realize higher precision.
3. reduce the auxiliary process time owing to not adopting mechanical transmission component in torque motor, decrease friction, the auxiliary process time is significantly reduced, be conducive to realizing higher dynamic property.
4. gapless does not need to adopt gear drive due to torque motor, therefore just no longer there is well-known clearance issues yet.Thus the contour accuracy significantly improved when the direction of motion changes, and its repeatability precision also significantly improves.
5. with the torque motor of coolant jacket for small axle diameter torque motor, linear induction motor system company of Siemens have employed a kind of efficient and cooling system of economy: water-cooled external cooling jacket, can ensure that motor temperature is stably maintained in prescribed limit.
6. the easy integrated rotor due to torque motor and stator pre-assembled, and wiring is also standardized, so Siemens's torque motor can carry out integrated with existing machine construction easily.
7. the maximum output of large torque Siemens torque motor is 7430Nm.
The present embodiment corresponding diagram 1-4 remarks additionally following content: square ram 2 is also known as U-shaped slide plate, its stroke can reach 170mm, maximum can processing work length be 2100mm, the shortest Workpiece length 1050mm can be processed, can process minimum diameter is Φ 580mm, can process maximum inner diameter is Φ 1250mm, and the Z-direction stroke of servo slide table is 2800mm;
Ball-screw 5 is specially ball-screw R40-5B2-FSW-0.008; Hollow absolute position encoder 7 is specially Heidenhain absolute position encoder RCN727F; Middle control servo force torque motor 3 is specially in BOSCH-REXROTH controls servomotor MST160A0050.
Action specification: the screw of BOSCH-REXROTH hollow servomotor (MST160A0050) rotary actuation leading screw rotates, screw drives leading screw to do rectilinear motion, leading screw two ends are connected with square ram, side's ram and leading screw do synchronous linear and move, and the turning cutting tool on the side's of being arranged on ram carries out radial cutting to workpiece.Hollow servomotor adds man-hour feed speed only need reach about 1.5 revs/min, and withdrawing speed rotation speed requirements is normal.Above action and main shaft rotate and synchronously carry out, and axial feed drives main spindle box to move realization by Z axis driven by servomotor leading screw.Main shaft is rotated through variable-frequency motor band speed reducer drive belt transmission realization.
The range of work of numerical facing head described in the present embodiment: processing H355, H400, H450, H500, H560, H630, H710-2P motor seat inner hole and two planes.Fixture: according to different part exchanging hydraulic clamp pressing plate, can meet the Hydraumatic automatic clamping of different size part, unclamp, center height can change cushion block according to not concentricity height.Mair motor: be frequency conversion mair motor.(note: consider with positive and negative dress double-pole time processing endoporus and end face.)
The present embodiment proposes a kind of new numerical facing head structural design and application technology scheme, and its creationary employing conducting slip ring, as conversion line, solves electric machine casing and rotates the problem causing the control circuit wiring difficulty of hollow servo force torque motor 3.It has compact conformation, volume is little, sealing vibrationproof is functional, can realize semiclosed loop or closed-loop control easily, and it can realize good precision, and technique effect is excellent.The present embodiment has expected comparatively huge economic worth and social value.
Claims (3)
1. a numerical facing head, it is fixed in saddle (1), saddle (1) is directly connected with the front-end of spindle of lathe again, main shaft connects drive saddle (1) by end face and rotates, it is characterized in that: described numerical facing head is constructed as follows: square ram (2), hollow servo force torque motor (3), locating shaft (4), ball-screw (5), coder connecting shaft (6), hollow absolute position encoder (7), angular contact ball bearing (8), nut seat (9), screw (14), motor stator (16), rotor (17), wherein:
Ball-screw (5) two ends are connected to one by syndeton and square ram (2) two ends; Inwall and the screw (14) of locating shaft (4) are connected and fix as a whole;
The screw (14) of ball-screw (5) is connected on locating shaft (4), locating shaft (4) is mutually separated by the angular contact ball bearing (8) of a pair back-to-back installation and the bottom of nut seat (9) and is formed matching relationship, and locating shaft (4) and nut seat (9) form to coordinate with outer ring with the inner ring of angular contact ball bearing (8) respectively and contact;
Motor stator (16), rotor (17) are all arranged and are arranged in nut seat (9) inner chamber; Motor stator (16) is arranged in the inner chamber on nut seat (9) top and the two is mutually permanently connected as a whole; Rotor (17) to be arranged in motor stator (16) inner chamber and to be therebetween matched in clearance; Rotor (17) and the coder connecting shaft (6) be sleeved on ball-screw (5) are mutually permanently connected as a whole, hollow absolute position encoder (7) is fixed on the upper proximal end place of nut seat (9), for form matched in clearance between the outer wall on hollow absolute position encoder (7) inwall and coder connecting shaft (6) top;
Hollow servo force torque motor (3) and the circuit being arranged on the hollow absolute position encoder (7) on coder connecting shaft (6) are drawn by the conducting slip ring conversion be arranged on main shaft tail end.
2. according to numerical facing head described in claim 1, it is characterized in that: in described numerical facing head, be also provided with following structure: gland (15), encoder connect gland (18), compressing tablet (19); Meet following requirement particularly: be furnished with the nut seat (9) of angular contact ball bearing (8) outside, place and the gland (15) being also provided with shutoff between screw (14) and being connected; The upper end place in the two gap that is connected of hollow absolute position encoder (7) inwall and coder connecting shaft (6) is also provided with encoder and is connected gland (18), and encoder connects gland (18) and is fixedly connected with hollow absolute position encoder (7); Compressing tablet (19) is for being sleeved on the outside circulus of screw (14), its lower surface and screw (14) bottom form end contact, and its inside portion, upper surface and outside portion form end contact with both inner ring bottoms of that angular contact ball bearing (8) of locating shaft (4) lower end and foot respectively simultaneously.
3. according to numerical facing head described in claim 1, it is characterized in that: the syndeton be connected to one in ball-screw (5) two ends and square ram (2) two ends is the combination of locking nut (10), end cap (13) or the combination of expansion sleeve (12) and expansion sleeve gland (21) specifically; Wherein:
The combination of locking nut (10), end cap (13) is arranged in ball-screw (5) bottom, end cap (13) is sleeved on the shaft part of ball-screw (5) proximal end, lower end, and end cap (13) is fixedly connected with as a whole with the bottom of square ram (2); Locking nut (10) is sleeved on end cap (13) the below place of ball-screw (5) bottom;
The combination of expansion sleeve (12) and expansion sleeve gland (21) is arranged in ball-screw (5) upper end, the hole Duan Chu of the outer end of hole proximal end of ball-screw (5) is installed on ram (2) top, expansion sleeve gland (21) side of being arranged in, and expansion sleeve (12) is arranged in expansion sleeve gland (21) below and it is sleeved on ball-screw (5) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420591743.6U CN204277612U (en) | 2014-10-14 | 2014-10-14 | A kind of numerical facing head |
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| CN201420591743.6U CN204277612U (en) | 2014-10-14 | 2014-10-14 | A kind of numerical facing head |
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| CN204277612U true CN204277612U (en) | 2015-04-22 |
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| CN201420591743.6U Withdrawn - After Issue CN204277612U (en) | 2014-10-14 | 2014-10-14 | A kind of numerical facing head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325341A (en) * | 2014-10-14 | 2015-02-04 | 沈阳盛京精益数控机械有限公司 | Numerical control facing head |
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2014
- 2014-10-14 CN CN201420591743.6U patent/CN204277612U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325341A (en) * | 2014-10-14 | 2015-02-04 | 沈阳盛京精益数控机械有限公司 | Numerical control facing head |
| CN104325341B (en) * | 2014-10-14 | 2017-04-12 | 沈阳盛京精益数控机械有限公司 | Numerical control facing head |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150422 Effective date of abandoning: 20170412 |