CN109773531A - Machining is switched fast drive apparatus with cutter - Google Patents
Machining is switched fast drive apparatus with cutter Download PDFInfo
- Publication number
- CN109773531A CN109773531A CN201811588070.8A CN201811588070A CN109773531A CN 109773531 A CN109773531 A CN 109773531A CN 201811588070 A CN201811588070 A CN 201811588070A CN 109773531 A CN109773531 A CN 109773531A
- Authority
- CN
- China
- Prior art keywords
- main shaft
- cutter
- drive apparatus
- switched fast
- fast drive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a kind of machinings to be switched fast drive apparatus with cutter, including cabinet and main shaft, the interior lower section of cabinet is provided with collar bush, main shaft is rotatably arranged in collar bush by first bearing group and second bearing group, main shaft is hollow shaft, one end of main shaft passes through motor driven, motor is fixed on the side-lower of cabinet, sliding setting broaching tool bar in main shaft, one end of pull rod knife is connected with knife handle, the other end of broaching tool bar, which is equipped with, presses stick, disc spring pad is provided in the middle part of pull rod knife, stick both ends are pressed to stretch out from a pair of of sliding slot on main shaft respectively, it presses and is provided with piston outside stick, piston is slidably arranged in collar bush, the first oil inlet and the second oil inlet for pushing piston motion are provided with outside collar bush.Machining is switched fast drive apparatus with cutter, has advanced optimized rigidity, thermal stability, shock resistance and the precision of axis system.
Description
Technical field
The invention belongs to machine tooling equipment technical fields, are switched fast transmission with cutter more particularly to a kind of machining
Equipment.
Background technique
With continuous development of the Numeric Control Technology in field of machining, more and more mechanical production devices are all continuous
Ground develops to high-precision, efficient, high speed, high-intelligentization field, while also to machine-tool spindle system, more stringent requirements are proposed.
The spindle unit of numerically-controlled machine tool is one of important component of numerically-controlled machine tool, and main includes the support and peace of main shaft
Driving parts on main shaft.Due to the fluid drive of main shaft, it is quasi- stop and automatic tool changer all influences the degree of automation of lathe,
So it is required that the axis system of CNC milling machine machining center has good rigidity, thermal stability, shock resistance and precision stability.
Summary of the invention
The object of the present invention is to provide a kind of machinings to be switched fast drive apparatus with cutter, to improve axis system
Rigidity, thermal stability, shock resistance and precision.
In order to achieve the above object, the technical scheme adopted by the invention is that, a kind of machining is switched fast biography with cutter
Dynamic equipment, comprising:
The interior lower section of cabinet, the cabinet is provided with collar bush；
Main shaft, the main shaft are rotatably arranged in the collar bush by first bearing group and second bearing group, and main shaft is
Hollow shaft, one end of main shaft is by motor driven, and the motor is fixed on the side-lower of the cabinet, and sliding setting is drawn in main shaft
Knife bar, one end of the pull rod knife are connected with knife handle, and the other end of broaching tool bar, which is equipped with, presses stick, are provided in the middle part of pull rod knife
Disc spring pad, the stick both ends that press are stretched out from a pair of of sliding slot on main shaft respectively, are pressed and are provided with piston, the piston outside stick
It is slidably arranged in collar bush, the first oil inlet and the second oil inlet for pushing piston motion is provided with outside the collar bush；
Technical solution of the present invention also has the following characteristics that
The motor is stepper motor.
The first bearing group includes row angular contact ball axis at a double row cylindrical roller bearing and 60 ° of corner connections
It holds.
The second bearing group includes a pair of of radial thrust bearing.
One end of the main shaft is provided with shaft coupling, and the shaft coupling is connected by the shaft of rotary joint and the motor
It connects.
One end of the rotary joint is connect with shaft coupling keyway, and the other end of rotary joint and the shaft thread of motor connect
It connects.
The side of the shaft coupling is connected with shaft coupling diaphragm.
The pull rod knife is formed by connecting by the first pull rod knife and the second pull rod knife.
The side of the knife handle includes tapered surface, and one end of the main shaft is provided with the taper to match with the tapered surface
Hole.
It is provided with keyway on the knife handle, the key with keyway cooperation is provided in the main shaft.
The beneficial effects of the present invention are: design process automation can be achieved in (1), machining accuracy and quality are improved, shortens and produces
The product lead time；(2) structure is simple, control is easy, tool changing is reliable, general BT40 knife handle；(3) hydraulic system, Ke Yigai are used
The disengaging oil pocket for becoming oil cylinder, can satisfy the requirement of larger clamping force, realizes release and the pinching action of cutter.It is compact-sized,
It is sensitive, stable drive, automation easy to accomplish；(4) setting accuracy is high, meets high-precision processing request；(5) main shaft passes
System advantage: the bearing type and collocation form of main shaft selection is moved, the high revolving speed of main shaft is able to satisfy and bears biggish axial load
Lotus requires, and after main shaft temperature distortion, does not influence machining accuracy；(6) it is placed vertically when working, occupied space is few.
Detailed description of the invention
Fig. 1 is the perspective view that a kind of machining of the invention is switched fast drive apparatus with cutter；
Fig. 2 is that Fig. 1 removes the cross-sectional view after cabinet；
Fig. 3 is the structural schematic diagram in Fig. 1 between knife handle and pull rod knife.
In figure, 1. knife handles, 2. first glands, 3. collar bushes, 4. first bearing groups, 5. outer separators, 6. inner spacing collars, 7. second
Bearing group, 8. pistons, 9. second glands, 10. press stick, 11. positioning rings, 12. main shafts, 13. first spacers, 14. blind rivets, and 15.
Collet, 16. drawing bodies, 17. disc spring pads, 18. first pull rod knives, 19. second spacers, 20. locking nuts, 21. first oil inlets,
22. the second oil inlet, 23. second pull rod knives, 24. shaft couplings, 25. shaft coupling diaphragms, 26. rotary joints, 27. motors, 28. casees
Body, 29. keyways.
Specific embodiment
Technical solution of the present invention is described in further detail below in conjunction with Detailed description of the invention and specific embodiment.
As depicted in figs. 1 and 2, a kind of machining of the invention is switched fast drive apparatus, including cabinet 28, case with cutter
The interior lower section of body 28 is provided with collar bush 3, and the side-lower of cabinet 28 is provided with motor 27.
First bearing group 4 and second bearing group 7, the inner ring and second bearing group of first bearing group 4 are provided in collar bush 3
Main shaft 12 is provided in 7 inner ring.Main shaft 12 be hollow shaft, i.e., the inside of main shaft 12 be hollow structure, the shaft of motor 27 with
One end of main shaft 12 connects, and sliding setting broaching tool bar, pull rod knife are connected by the first pull rod knife 18 and the second pull rod knife 23 in main shaft 12
It connects, the other end of broaching tool bar is connected with knife handle 1, and tool bore is provided in knife handle 1, and cutter is mountable in tool bore, pull rod knife
Shanghai be provided with and disc spring pad 17 and press stick 10, a pair of of sliding slot is provided on main shaft 12, presses 10 both ends of stick respectively from main shaft
This on 12 presses to stretching out in sliding slot and is provided with piston 8 outside stick 10, piston 8 is slidably disposed in collar bush 3, main shaft
It is provided with outside set 3 and pushes sporting first oil inlet 21 of piston 8 and the second oil inlet 22, the first oil inlet 21 and the second oil inlet
Mouth is located at the two sides of piston 8.
As shown in Fig. 2, one end of the first pull rod knife 18, which is connected with, draws body 16, one end of knife handle 1 is provided with blind rivet 14, draws body
16 are linked together with blind rivet 14 by collet 15.
As shown in Figure 2, it is preferable that first bearing group 4 includes biserial at a double row cylindrical roller bearing and 60 ° of corner connections
Angular contact ball bearing；It is also preferable that second bearing group 7 includes a pair of of radial thrust bearing.
This preferred disposition of first bearing group 4 and second bearing group 7, can be such that the integral stiffness of main shaft 12 significantly mentions
Height meets the requirement of high-rate cutting.
As shown in Fig. 2, outer separator 5 and inner spacing collar 6 can also be arranged between first bearing group 4 and second bearing group 7, it is interior every
Set 6 is located in outer separator 5, and one end of bearing holder (housing, cover) 3 is provided with the first gland 2, the outside of the first gland 2 and first bearing group 4 it
Between be provided with the first spacer 13, locking nut 20 is provided on main shaft 12, between locking nut 20 and the outside of second bearing group 7
It is provided with the second spacer 19, the other end of bearing holder (housing, cover) 3 is provided with the second gland 9, and the outside of piston 8 is provided with positioning ring 11.The
The pretightning force of two bearing groups 7 is compressed with locking nut 20 by the second spacer 19, locking by the self-locking realization of locking nut 20
The axial position of each bearing and main shaft 12, and pretightning force is generated to bearing, while passing through the adjustment of locking nut 20, make main shaft 12
Pre-stretching is generated, to improve the rigidity and thermal deformation of main shaft 12.Gap between first bearing group 4 and second bearing group 7 it is outer every
5, inner spacing collar 6 and the first spacer 13 are covered to adjust, to generate pretightning force.
As shown in Fig. 2, one end of main shaft 12 is provided with shaft coupling 24, shaft coupling 24 passes through rotary joint 26 and motor 27
Shaft connection, specifically one end of rotary joint 26 is connect with 24 keyway of shaft coupling, the other end and motor of rotary joint 26
27 shaft thread connection.Shaft coupling 24 mainly ensures that the shaft passing movement of main shaft 12 and motor 27 is turned round together in the process,
Ensure that the two cannot come off under normal circumstances.
As shown in Fig. 2, the side of shaft coupling 24 is connected with shaft coupling diaphragm 25, it can be achieved that gap without spin, so not by
Temperature and greasy dirt influence.
As shown in figure 3, the side of knife handle 1 includes tapered surface, one end of main shaft 12 is provided with the cone to match with tapered surface
On the one hand shape hole can ensure that knife handle 1 can smoothly enter into main shaft 12, on the other hand can ensure that knife handle 1 is clamped in by main shaft 12
In it.
As shown in Figures 2 and 3, it is provided with keyway 29 on knife handle 1, is provided with key in main shaft 12.In order to realize automatic tool changer,
It is packed into manipulator accurately in main shaft 12 cutter, the keyway 29 on knife handle 1 must be directed at insertion with the key of main shaft 12.
As shown in Fig. 2, pressure oil enters from the second oil inlet 22, and piston 8 is hydraulic at this time when cutter needs will clamp
It is moved to right under the action of oil, presses stick 10 and also move to right therewith, and then by driving broaching tool bar, broaching tool bar passes through collet 15 for knife at this time
Handle 1 pulls in the interior of main shaft 12, and the inner conical surface of the tapered surface of knife handle 1 and the bellmouth of main shaft 12 is made to mutually compress and be fitted close,
Knife handle 1 is clamped on main shaft 12 by positioning, so that it is guaranteed that cutter during machine cut in knife handle 1 will not be from main shaft 12
It falls down.
As shown in Fig. 2, when change need loosening cutter when, pressure oil enters from the first oil inlet 21, push piston 8 make broaching tool
Bar moves to left, and draws body 16 to move to left with broaching tool bar at the larger aperture of main shaft 12 at this time, and broaching tool bar can push collet 23, folder
First 23 will unclamp the blind rivet 14 on knife handle 1, and the front end of knife handle 1 be ejected main shaft 12, and then can will be in knife handle 1 with manipulator
Pulling-out of cutter, carry out replacement or other operations.
Therefore machining of the invention is switched fast drive apparatus with cutter and has the advantage that (1) can be achieved design and add
Work automation, improves machining accuracy and quality, shortens product development cycle；(2) structure is simple, control is easy, tool changing is reliable, leads to
With BT40 knife handle；(3) hydraulic system is used, thus it is possible to vary the disengaging oil pocket of oil cylinder can satisfy the requirement of larger clamping force, real
The release of existing cutter and pinching action.It is compact-sized, sensitive, stable drive, automation easy to accomplish；(4) registration
Degree is high, meets high-precision processing request；(5) main axis transmission system advantage: the bearing type and collocation form of main shaft selection, energy
Meet the high revolving speed of main shaft and bear biggish axial load requirement, after main shaft temperature distortion, does not influence machining accuracy；(6) it works
Shi Shuzhi is placed, and occupied space is few.
Claims (10)
1. a kind of machining is switched fast drive apparatus with cutter characterized by comprising
Cabinet (28), the interior lower section of the cabinet are provided with collar bush (3)；
Main shaft (12), the main shaft (12) are rotatably arranged on the collar bush by first bearing group (4) and second bearing group (7)
(3) in, main shaft (12) is hollow shaft, and one end of main shaft (12) is driven by motor (27), and the motor (27) is fixed on described
The side-lower of cabinet (28), the interior sliding setting broaching tool bar of main shaft (12), one end of the pull rod knife is connected with knife handle (1), broaching tool
The other end of bar, which is equipped with, to be pressed stick (10), is provided in the middle part of pull rod knife disc spring pad (17), described to press stick (10) both ends point
It is not stretched out from a pair of of sliding slot on main shaft (12), presses and be provided with piston (8) outside stick (10), piston (8) the sliding setting
In collar bush (3), the first oil inlet (21) for pushing piston (8) movement and the second oil inlet are provided with outside the collar bush (3)
Mouth (22).
2. machining according to claim 1 is switched fast drive apparatus with cutter, which is characterized in that the motor (27)
For stepper motor.
3. machining according to claim 1 is switched fast drive apparatus with cutter, which is characterized in that the first bearing
Group (4) includes double-row angular contact ball bearing at a double row cylindrical roller bearing and 60 ° of corner connections.
4. machining according to claim 3 is switched fast drive apparatus with cutter, which is characterized in that the second bearing
Group (7) includes a pair of of radial thrust bearing.
5. machining according to claim 1 is switched fast drive apparatus with cutter, which is characterized in that the main shaft (12)
One end be provided with shaft coupling (24), the shaft coupling (24) is connected by the shaft of rotary joint (26) and the motor (27)
It connects.
6. machining according to claim 5 is switched fast drive apparatus with cutter, which is characterized in that the rotary joint
(26) one end is connect with shaft coupling (24) keyway, and the other end of rotary joint (26) is connect with the shaft thread of motor (27).
7. machining according to claim 6 is switched fast drive apparatus with cutter, which is characterized in that the shaft coupling
(24) side is connected with shaft coupling diaphragm (25).
8. machining according to claim 1 is switched fast drive apparatus with cutter, which is characterized in that the pull rod knife by
First pull rod knife (18) and the second pull rod knife (23) are formed by connecting.
9. machining according to claim 1 is switched fast drive apparatus with cutter, which is characterized in that the knife handle (1)
Side include tapered surface, one end of the main shaft (12) is provided with the bellmouth to match with the tapered surface.
10. machining according to claim 1 is switched fast drive apparatus with cutter, which is characterized in that the knife handle (1)
Side be provided with keyway (29), the key with the keyway (29) cooperation is provided in the main shaft (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811588070.8A CN109773531A (en) | 2018-12-25 | 2018-12-25 | Machining is switched fast drive apparatus with cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811588070.8A CN109773531A (en) | 2018-12-25 | 2018-12-25 | Machining is switched fast drive apparatus with cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109773531A true CN109773531A (en) | 2019-05-21 |
Family
ID=66498251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811588070.8A Pending CN109773531A (en) | 2018-12-25 | 2018-12-25 | Machining is switched fast drive apparatus with cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109773531A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4148246A (en) * | 1977-02-09 | 1979-04-10 | Ex-Cell-O Corporation | High speed spindle and draw bar assembly |
| CN206455183U (en) * | 2017-01-12 | 2017-09-01 | 御成工业有限公司 | Main axle structure |
| CN207696161U (en) * | 2017-11-07 | 2018-08-07 | 佛山市维迪克精密机械科技有限公司 | A kind of mechanical processing high-speed main spindle |
| JP2018167335A (en) * | 2017-03-29 | 2018-11-01 | ブラザー工業株式会社 | Spindle device and machine tool |
| CN208262383U (en) * | 2018-04-16 | 2018-12-21 | 陕西阿米工业设计有限公司 | A kind of vertical machining centre integral type main shaft device |
-
2018
- 2018-12-25 CN CN201811588070.8A patent/CN109773531A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4148246A (en) * | 1977-02-09 | 1979-04-10 | Ex-Cell-O Corporation | High speed spindle and draw bar assembly |
| CN206455183U (en) * | 2017-01-12 | 2017-09-01 | 御成工业有限公司 | Main axle structure |
| JP2018167335A (en) * | 2017-03-29 | 2018-11-01 | ブラザー工業株式会社 | Spindle device and machine tool |
| CN207696161U (en) * | 2017-11-07 | 2018-08-07 | 佛山市维迪克精密机械科技有限公司 | A kind of mechanical processing high-speed main spindle |
| CN208262383U (en) * | 2018-04-16 | 2018-12-21 | 陕西阿米工业设计有限公司 | A kind of vertical machining centre integral type main shaft device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109604647A (en) | Numerically-controlled machine tool transmission system | |
| CN201446425U (en) | Clamping mechanism for spring chuck to hold parts on lathe | |
| CN208880143U (en) | A kind of longitudinal sectional formula complex milling machine tool | |
| CN109128835A (en) | Longitudinal sectional formula complex milling machine tool | |
| EP2507004A1 (en) | Spindle apparatus for receiving and driving a tool holder | |
| US8585333B2 (en) | Spindle comprising a tension rod and a coupling device | |
| CN114871822A (en) | Centrifugal force-free cutting device | |
| CN204711218U (en) | Milling machine automatic filing removing main shaft | |
| CN109773219A (en) | Cutter single shaft driving mechanism | |
| CN109759607A (en) | Transmission main shaft | |
| CN109773531A (en) | Machining is switched fast drive apparatus with cutter | |
| CN109773532A (en) | Machine tool driving device | |
| CN109773533A (en) | Hydraulic gear | |
| CN210937198U (en) | Multifunctional vertical lathe clamping mechanism | |
| CN205464350U (en) | Double -shaft CNC (Computerized numerical control) lathe | |
| CN104308198A (en) | Main shaft device for direct-drive numerical-control hobbing tool rest | |
| CN216371214U (en) | Clamping device for electric spindle chuck | |
| CN201295773Y (en) | Principal axis set of lathe special for piston | |
| KR20140080583A (en) | Material holder | |
| CN202824712U (en) | Index chuck device | |
| CN114074256A (en) | Large inner diameter machining device for super-long workpiece of large circular tube | |
| CN209793090U (en) | High-precision turning equipment for miniature parts | |
| CN209774066U (en) | Multifunctional clamp | |
| CN209647611U (en) | It is a kind of for processing the special purpose lathe of ring flange | |
| CN207564319U (en) | Spring chuck |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190521 |
|
| RJ01 | Rejection of invention patent application after publication |