CN107716951A - The built-in two-way machine tool chief axis of clamping device - Google Patents
The built-in two-way machine tool chief axis of clamping device Download PDFInfo
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- CN107716951A CN107716951A CN201710795188.7A CN201710795188A CN107716951A CN 107716951 A CN107716951 A CN 107716951A CN 201710795188 A CN201710795188 A CN 201710795188A CN 107716951 A CN107716951 A CN 107716951A
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- piston
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- chuck
- disc spring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
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- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The present invention disclose built in the two-way machine tool chief axis of clamping device, including gyroaxis, turn round axis connection forward flange and rear flange, piston hole is formed between forward flange, rear flange and unit overcoat, in piston hole be provided with can horizontal axis motion piston promote body, piston promote body reach drive promote piece, then drive connection cylinder body, the chuck wedge heart movement, so as to promote four paws sliding block to be moved outwards, soft pawl is unclamped；Piston moves after promoting body, and with promoting piece to separate, post-tensioning cylinder body, connection cylinder body, the chuck wedge heart move after being driven by disc spring, promote four paws sliding block footpath inwardly to move, so as to clamp workpiece.The present invention can be once loaded, and workpiece both ends are processed simultaneously, moreover, the size of the invention to workpieces processing can complete the processing of more large-size workpiece, the clamping force of workpiece is ensured in place without limitation.
Description
Technical field
The present invention relates to a kind of machine tool chief axis, the more particularly to a kind of two-way machine tool chief axis of built-in clamping device.
Background technology
Existing machine tool chief axis, one end of clamped workpiece can only unidirectionally be processed, processing is reversed end for end after machining
The other end, the workpiece processed, its concentricity will certainly have mismachining tolerance.Thus, there is built-in clamping device in the market
Two-way machine tool chief axis.Chinese invention patent application publication No. CN 103920892A disclose a kind of two-way machine of built-in clamping device
Bed main shaft, as shown in figure 1, including axis system, built-in clamping drive system, shift fork system, clamping actuator, it is described built-in
Clamping drive system includes main axle unit set 1, closed type two-direction thrust bearing module 2；Bearing pivot flange 3, which is fixed, after described connects
The rear end of main axle unit set 1 is connect, fore bearing pivot flange 4 is fixedly connected with the front end of main axle unit set 1；Afterwards bearing pivot flange 3,
Fore bearing pivot flange 4 forms the main shaft bearing hole seat with a span with main axle unit set 1；The closed type bidirectional propulsion axle
Backing block 2 is arranged in main shaft bearing hole seat, and closed type two-direction thrust bearing module 2 can back and forth transport in main shaft bearing hole seat
It is dynamic；The shift fork system includes thrusting plate 5；Thrusting plate 5 is fixedly connected with closed type two-direction thrust bearing module 2, and power piece 5 is fixed
Connect post-tensioning cylinder body 6 and post-tensioning pad 7；Thrusting plate 5 is fixedly connected by post-tensioning cylinder body 6 and post-tensioning pad 7.In use, compression
First air admission hole A of gas from main axle unit set 1 enters in main shaft bearing hole seat, and closed type two-direction thrust bearing module 2 is overall
It is moved rearwards, closed type two-direction thrust bearing module 2 is moved after connected thrusting plate 5 is moved by wherein annulus, thrusting plate 5
Moved after driving post-tensioning cylinder body 6；Post-tensioning cylinder body 6 is so as to driving soft claw clip to handle workpiece；When needing to unclamp workpiece, compressed gas is from master
Second air admission hole B of axle unit set 1 enters in main shaft bearing hole seat, then unclamps soft pawl by a series of parts.Above-mentioned knot
The two-way machine tool chief axis of built-in clamping device of structure, is only suitable for the less workpiece of processing dimension.Due to the imperfection of machining accuracy
Under will producing the objective circumstances of bigger heat when high speed rotates with bearing roller, closed type two-direction thrust bearing module must
Bigger specification can not be so made, because excessive workpiece certainly will cause the overall dimensions of lathe main axis device to increase, meanwhile, it is excessive
Workpiece need bigger clamping force, this needs to process larger sized closed type two-direction thrust bearing module, while the module
More axial forces are carried, to reach the clamping force for clamping workpiece, but this structure causes heating to cause showing for bearing premature failure
As more serious, experimental data shows, two-direction thrust bearing Module specifications size often increases by 1/3, and generated heat about original 1.8
Times, bearing life is about original 1/2, simultaneously as the model of bearing, size have national standard, larger sized lathe
Main shaft device, closed type two-direction thrust bearing module is caused to become nonstandard product, processing cost increase.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of two-way machine tool chief axis of built-in clamping device, and it can be realized
Workpieces processing size is unlimited, simultaneously, moreover it is possible to ensures the clamping force to workpiece.
The present invention solve the technical scheme that uses of above-mentioned technical problem for：
The built-in two-way machine tool chief axis of clamping device, including axis system, built-in release drive system, built-in clamping drivetrain
System, shift fork system and clamping actuator, the axis system include gyroaxis, and gyroaxis is fixedly connected with pre- gland,
Primary shaft belt pulley is fixed with pre- gland, motor realizes the driving to gyroaxis by belt drive primary shaft belt pulley；Gyroaxis leads to
Later bearing is realized with rear flange and connected, and gyroaxis is realized by fore bearing and forward flange and connected；The built-in release drivetrain
System includes unit overcoat, rear flange, forward flange and piston and promotes body, and the promotion body living includes main body, is provided with and leads in main body
To bar, air inlet duct and storage tank, the guide rod is in the top of main body and matched and formed located at unit overcoat with forward flange
Guide groove in, extending sideways for rear flange has gib block, and the bottom mating of main body guide rod, gib block, is led on gib block
The translational guide structure of stabilization of the piston promotion body in piston hole is together form to groove；The air inlet duct and the first air admission hole
Matching, the second air admission hole are matched with the end of guide groove；For the storage tank with promoting piece to match, the rear flange is fixedly connected with list
The rear end of first overcoat, forward flange are fixedly connected with the front end of unit overcoat, the rear flange, unit overcoat and the common shape of forward flange
Into piston hole, piston promotes body to be arranged in piston hole and realized in piston hole and moved back and forth, the forward and backward flange and work
Plug is promoted and is equipped with cushion pad on the inwall of body matching contact, and body and forward flange, unit overcoat and rear method are promoted in piston
Sealing ring is equipped between orchid；The shift fork system includes promoting piece, and the piston promotes body matching to be in the rear side for promoting piece,
Promote piece to be between post-tensioning cylinder body and connection cylinder body, the connection cylinder body, promote piece and post-tensioning cylinder body to achieve a fixed connection,
The connection cylinder body is fixedly connected with the chuck wedge heart, chuck wedge heart driving clamping actuator；The built-in clamping drive system
Including disc spring and disc spring gland, the disc spring gland is fixedly connected on the outer end of post-tensioning cylinder body, and disc spring one end is against disc spring gland
On, the other end is against in pre- gland, and disc spring can realize the axial motive force to post-tensioning cylinder body；The clamping actuator includes
Chuck overcoat, four paws sliding block and soft pawl, the chuck overcoat are fixedly connected on the shaft end of gyroaxis, and four paws sliding block is outside chuck
In set, soft pawl is on four paws sliding block；The chuck wedge heart is provided with outer inclined-plane, and the outer inclined-plane is matched with the interior oblique of four paws sliding block
Face, the chuck wedge heart are driven the outer inclined-plane of four paws sliding block by outer inclined-plane, realize the movement of four paws sliding block diametrically；Work as compression
Gas from the air admission hole A of unit overcoat enter piston hole when, piston promote body moved right vertically in piston hole, then live
Plug promotes body to drive and promotes piece to move right vertically, promote piece drive connection cylinder body and drive the chuck wedge heart to transport to the right vertically
Dynamic, chuck wedge heart driving four paws sliding block is radially outer to be moved, and four paws sliding block drives soft pawl to realize and is moved outwards, so as to unclamp workpiece；
When compressed gas enters piston hole from the air admission hole B of unit overcoat, piston promotes body to be moved to the left vertically in piston hole,
Piston promotes body, and to promoting piece to lose motive force, the elastic force of disc spring promotes post-tensioning cylinder body to move axially to the left, pushed away so as to drive
Moving plate, connection cylinder body, the chuck wedge heart are moved to the left, and chuck wedge its central band moves the radially interior movement of four paws sliding block, and four paws sliding block drives
The radially interior shifting of soft pawl, so as to clamp workpiece.
Further, the disc spring gland includes supporting plate and the fixation step in supporting plate, the fixed step
Fixation is matched with post-tensioning cylinder ends, one end of disc spring is supported on the supporting plate, by the height of the fixed step of adjustment, achievable pair
The adjustment of disc spring precompression, the inner ring surface of the chuck overcoat are provided with chuck sealed ring.
What the present invention can reach has the technical effect that：
Compared with prior art, the two-way machine tool chief axis of built-in clamping device of the invention, is once loaded, and can complete both ends and add
Work, it is ensured that product axiality, while reduce labor strength；Prior art is compared, and built-in clamping device of the invention is two-way
Machine tool chief axis, soft claw clip are tightly driven using the elastic force of disc spring, simple and reliable for structure, energy-conserving and environment-protective, while convenient extension is bigger
Work pieces process scope；And the release of soft pawl is realized using compressed gas structure, little force is only needed to can be achieved because soft pawl unclamps,
So, the built-in instrument size for unclamping drive system is controlled, and its air pressure lost is also ignored.
Brief description of the drawings
Fig. 1 is the structural representation of background technology；
Fig. 2 is the structural representation of the two-way machine tool chief axis of clamping device built in the present invention；
Fig. 3 is that the piston of the two-way machine tool chief axis of clamping device built in the present invention promotes the structural representation of body；
Fig. 4 is the structural representation of the disc spring gland of the two-way machine tool chief axis of clamping device built in the present invention.
Embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description：Fig. 2, Fig. 3 are referred to, this
Invent and provide a kind of built-in clamping device two-way machine tool chief axis, including axis system, built-in release drive system, built-in clamping drive
Dynamic system, shift fork system and clamping actuator, the axis system include gyroaxis 1015, and the rear end of gyroaxis 1015 leads to
The bottom that screw is fixedly connected with the front end face of pre- gland 1005 is crossed, main shaft is fixed with the top of the pre- rear end face of gland 1005
Belt wheel 1004, the primary shaft belt pulley 1004 are fixed by screw and pretension bonnet 1005, and motor passes through belt drive primary shaft belt pulley
1004 realize the driving to gyroaxis 1015；Gyroaxis 1015 is realized by rear bearing 1028 and rear flange 1007 and connected, and is turned round
Axle 1015 is realized by fore bearing 1020 and forward flange 1013 and connected, and bearing is provided between fore bearing 1020 and rear bearing 1028
Spacer 1025, bearing spacer 1025 are enclosed on the outer wall of gyroaxis 1015, and fore bearing 1020 is located in the bearing hole of forward flange 1013, after
Bearing 1028 is in the bearing hole of rear flange 1007, the outer press cover 1006 after the lateral surface of rear flange 1007 is set, and passes through
Rear outer press cover 1006 is fixed on rear flange 1007 by screw, and the limitation of rear bearing 1028 is fixed on bearing hole by rear outer press cover 1006
It is interior；The outer press cover 1014 before the lateral surface of forward flange 1013 is set, and preceding outer press cover 1014 is fixed on by forward flange by screw
On 1013, the limitation of fore bearing 1020 is fixed in bearing hole by preceding outer press cover 1014.Built-in release drive system is included outside unit
Set 1012, rear flange 1007, forward flange 1013 and piston promote body 1010, and the rear flange 1007 is fixedly connected with unit overcoat
1012 rear end, forward flange 1013 are fixedly connected with the front end of unit overcoat 1012, and forward and backward flange 1013,1007 is plugged in unit
In the endoporus of overcoat 1012, the rear flange 1007, unit overcoat 1012 and forward flange 1013 together form piston hole, living
Plug promotes body 1010 to be arranged in piston hole and realized in piston hole and moved back and forth；Unit overcoat 1012 and forward and backward flange
1013rd, sealing ring 1008 is provided between 1007；The first air admission hole, the second air admission hole are radially provided with unit overcoat 1012；
As shown in figure 3, piston promote body 1010 include main body 1029, in main body 1029 provided with guide rod 1030, air inlet duct 1031 with
And storage tank 1032, the guide rod 1030, which is in the top of main body 1029 and matched, is located at unit overcoat 1012 and forward flange
In 1013 guide grooves 1033 formed, extending sideways for rear flange 1007 has gib block, and the bottom mating of main body 1029 is being oriented to
On bar, guide rod 1030, gib block, guide groove 1033 together form piston and promote the flat of stabilization of the body 1010 in piston hole
Move guide frame；The air inlet duct 1031 matches with the first air admission hole, and the second air admission hole is matched with the end of guide groove 1033；Institute
Storage tank 1032 is stated with promoting piece 1023 to match；The forward and backward flange 1013,1007 promotes body 1010 to match what is contacted with piston
Cushion pad 1009 is equipped with inwall, body 1010 and forward flange 1013, unit overcoat 1012 and rear flange are promoted in piston
Sealing ring 1011 is equipped between 1007, sealing ring 1011 is distributed in top and bottom, the guide groove that piston promotes body 1010
1033 bottom surface.The shift fork system includes promoting piece 1023, and the piston promotes the matching of body 1010 to be in and promotes piece 1023
Rear side, promote piece 1023 to be between post-tensioning cylinder body 1026 and connection cylinder body 1022, promote piece 1023 to be embedded in connection cylinder body
1022 with the step of the connection end of post-tensioning cylinder body 1026, screw through connection cylinder body 1022, promote piece 1023 to be fixed on rear scuffing of cylinder bore
On body 1026, the connection cylinder body 1022, piece 1023 and post-tensioning cylinder body 1026 is promoted to achieve a fixed connection, the connection cylinder body
1022 other end is fixedly connected with the chuck wedge heart 1018 by screw, and the chuck wedge heart 1018 drives clamping actuator；It is described
Built-in clamping drive system includes disc spring 1002 and disc spring gland 1001, and the disc spring gland 1001 is fixedly connected on post-tensioning cylinder body
1026 outer end, the one end of disc spring 1002 are against on disc spring gland 1001, and the other end is against in pre- gland 1005, and disc spring 1002 can
Realize the axial motive force to post-tensioning cylinder body 1026；As shown in figure 4, the disc spring gland 1001 includes the supporting plate 1034 of annular
With the fixation step 1035 to stretch out on the inner hole wall of supporting plate 1034, the fixed step 1035 and post-tensioning cylinder body
1026 ends are fixedly connected by screw, and one end of disc spring 1002 is against in supporting plate 1034, by adjusting fixed step 1035
Height, adjustment to the precompression of disc spring 1002 can be achieved.The clamping actuator includes chuck overcoat 1016, four paws sliding block
1027 are fixedly connected on the shaft end of gyroaxis 1015, four paws sliding block 1027 with soft pawl (not drawn in figure), the chuck overcoat 1016
In chuck overcoat 1016, soft pawl (not drawn in figure) is on four paws sliding block 1027；The chuck wedge heart 1018 is provided with outer oblique
Face, the outer inclined-plane are matched with the outer inclined-plane of four paws sliding block 1027, and the chuck wedge heart 1018 drives four paws sliding block by outer inclined-plane
1027 outer inclined-plane, realize the movement of four paws sliding block 1027 diametrically；The inner ring surface of the chuck overcoat 1016 is provided with
Chuck sealed ring 1017.
The operation principle of the present invention is as follows：
Motor is rotated by belt drive primary shaft belt pulley 1004, and primary shaft belt pulley 1004 drives gyroaxis 1015 with respect to forward flange
1013rd, rear flange 1007 rotates；When compressed air is entered from the first air admission hole fashionable, piston promotes body 1010 to move forward, and drives
Piece 1023 is promoted to move forward, so as to drive connection cylinder body 1022, the chuck wedge heart 1018, post-tensioning cylinder body 1026, disc spring gland 1001 same
When move forward, now disc spring 1002 is compressed, and produces deformation, four paws sliding block 1027 with the gradient of the chuck wedge heart 1018 by making
With radially outward opening, now main shaft can not rotate, and be put into workpiece；Workpiece is positioned over into four paws sliding block 1027 to drive
Soft pawl (not drawn in figure) in after, now compressed air is entered fashionable from the second air admission hole, and piston promotes body 1010 to be moved rearwards, living
Plug promotes body 1010, and disc spring 1002 passes through rebound effect band with promoting piece 1023 to separate and no longer producing thrust to promotion piece 1023
Dynamic connection cylinder body 1022, the chuck wedge heart 1018, post-tensioning cylinder body 1026 and disc spring gland 1011 are moved rearwards, four paws sliding block 1027
Radially-inwardly clamp；After soft pawl (not drawn in figure) touches workpiece, it is associated part also stop motion, disc spring 1002 is in accumulation of energy
State, now piston promote body 1010 to be separated with promotion piece 1023, workpiece is clamped, and main shaft can start to rotate, and workpiece can be with
Processing.
The two-way machine tool chief axis of built-in clamping device provided above the embodiment of the present invention is described in detail, herein
In apply specific case to the present invention principle and embodiment be set forth, the explanation of above example is only intended to help
Assistant solves disclosed technical scheme；Meanwhile for those of ordinary skill in the art, according to the thought of the present invention,
There will be changes in specific embodiments and applications, in summary, this specification content should not be construed as this hair
Bright limitation.
Claims (2)
- The two-way machine tool chief axis of clamping device built in 1., it is characterised in that：Including axis system, built-in release drive system, built-in Clamping drive system, shift fork system and clamping actuator, the axis system includes gyroaxis, and gyroaxis is fixedly connected pre- Gland, is fixed with primary shaft belt pulley in pre- gland, and motor realizes the driving to gyroaxis by belt drive primary shaft belt pulley； Gyroaxis realizes and connected that gyroaxis is realized by fore bearing and forward flange and connected by rear bearing and rear flange；The built-in pine Opening drive system includes unit overcoat, rear flange, forward flange and piston promotion body, and the piston promotes body to include main body, in master Body is provided with guide rod, air inlet duct and storage tank, the guide rod be in the top of main body and match located at unit overcoat with In the guide groove that forward flange is formed, extending sideways for rear flange has gib block, the bottom mating of main body on bar, guide rod, Gib block, guide groove together form piston and promote body translational guide structure stable in piston hole；The air inlet duct and One air admission hole matches, and the second air admission hole is matched with the end of guide groove；The storage tank with promoting piece to match, consolidate by the rear flange Determine the rear end of connection unit overcoat, forward flange is fixedly connected with the front end of unit overcoat, the rear flange, unit overcoat and preceding method Orchid together form piston hole, and piston promotes body to be arranged in piston hole and realized in piston hole and moved back and forth, described forward and backward Cushion pad is equipped with the inwall that flange promotes body matching to contact with piston, body and forward flange, unit overcoat are promoted in piston And sealing ring is equipped between rear flange；The shift fork system includes promoting piece, and the piston promotes body matching to be in and promoted The rear side of piece, promote piece to be between post-tensioning cylinder body and connection cylinder body, the connection cylinder body, promote piece and post-tensioning cylinder body to realize It is fixedly connected, the connection cylinder body is fixedly connected with the chuck wedge heart, chuck wedge heart driving clamping actuator；The built-in clamping Drive system includes disc spring and disc spring gland, and the disc spring gland is fixedly connected on the outer end of post-tensioning cylinder body, and disc spring one end is against On disc spring gland, the other end is against in pre- gland, and disc spring can realize the axial motive force to post-tensioning cylinder body；Described clamp performs Mechanism includes chuck overcoat, four paws sliding block and soft pawl, the chuck overcoat and is fixedly connected on the shaft end of gyroaxis, and four paws sliding block is set In in chuck overcoat, soft pawl is on four paws sliding block；The chuck wedge heart is provided with outer inclined-plane, and the outer inclined-plane is matched with four paws cunning The outer inclined-plane of block, the chuck wedge heart are driven the outer inclined-plane of four paws sliding block by outer inclined-plane, realize the shifting of four paws sliding block diametrically It is dynamic；When compressed gas enters piston hole from the air admission hole A of unit overcoat, piston promotes body to be transported to the right vertically in piston hole Dynamic, then piston promotes body to drive and promotes piece to move right vertically, promote piece drive connection cylinder body and drive chuck wedge heart edge Axially moving right, chuck wedge heart driving four paws sliding block is radially outer to be moved, and four paws sliding block drives soft pawl to realize and is moved outwards, so as to Unclamp workpiece；When compressed gas enters piston hole from the air admission hole B of unit overcoat, piston promote body in piston hole vertically To left movement, piston promotes body, and to promoting piece to lose motive force, the elastic force of disc spring promotes post-tensioning cylinder body to move axially to the left, from And drive and promote piece, connection cylinder body, the chuck wedge heart to be moved to the left, chuck wedge its central band moves the radially interior movement of four paws sliding block, four paws Sliding block drives the soft radially interior shifting of pawl, so as to clamp workpiece.
- 2. the two-way machine tool chief axis of built-in clamping device according to claim 1, it is characterised in that：The disc spring gland includes Supporting plate matches fixation, one end of disc spring with post-tensioning cylinder ends with the fixation step in supporting plate, the fixed step To on the supporting plate, by adjusting the height of fixed step, can be achieved the adjustment to disc spring precompression, the chuck overcoat it is interior Anchor ring is provided with chuck sealed ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710795188.7A CN107716951A (en) | 2017-09-06 | 2017-09-06 | The built-in two-way machine tool chief axis of clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710795188.7A CN107716951A (en) | 2017-09-06 | 2017-09-06 | The built-in two-way machine tool chief axis of clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107716951A true CN107716951A (en) | 2018-02-23 |
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ID=61205773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710795188.7A Pending CN107716951A (en) | 2017-09-06 | 2017-09-06 | The built-in two-way machine tool chief axis of clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107716951A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372893A (en) * | 2018-12-17 | 2019-02-22 | 上海航天控制技术研究所 | A kind of low speed motor-driven shafting device fastly |
| CN116967816A (en) * | 2023-09-01 | 2023-10-31 | 宁波天控五轴数控技术有限公司 | Rotating shaft enclasping device and enclasping method |
-
2017
- 2017-09-06 CN CN201710795188.7A patent/CN107716951A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372893A (en) * | 2018-12-17 | 2019-02-22 | 上海航天控制技术研究所 | A kind of low speed motor-driven shafting device fastly |
| CN116967816A (en) * | 2023-09-01 | 2023-10-31 | 宁波天控五轴数控技术有限公司 | Rotating shaft enclasping device and enclasping method |
| CN116967816B (en) * | 2023-09-01 | 2024-03-29 | 宁波天控五轴数控技术有限公司 | Rotating shaft enclasping device and enclasping method |
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Application publication date: 20180223 |