CN206445522U - Slab bridge formula turntable - Google Patents
Slab bridge formula turntable Download PDFInfo
- Publication number
- CN206445522U CN206445522U CN201720032423.0U CN201720032423U CN206445522U CN 206445522 U CN206445522 U CN 206445522U CN 201720032423 U CN201720032423 U CN 201720032423U CN 206445522 U CN206445522 U CN 206445522U
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- table top
- slab bridge
- driving
- driving table
- drive device
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Abstract
The utility model discloses a kind of slab bridge formula turntable, it includes：It is used for clamping workpiece on slab bridge part, the slab bridge part；Driving part, the driving part includes two drive devices, one of drive device is connected with the one end of slab bridge part, and another drive device is connected with the other end of slab bridge part, and will pass through two drive devices, synchronously driving slab bridge part does gyration.The utility model drives structure using double, and turret supports are rigidly good, and driving torque is big, it is adaptable to the four axis processing of large-scale precision based plate and the indexing processing of four axles.
Description
Technical field
The utility model is related to a kind of slab bridge formula turntable.
Background technology
At present, existing turntable has the following disadvantages：
1st, using Worm Wheel System form or gear transmission mode, this kind of turntable motor imagination speed is slow, dynamic is firm
Property poor, mechanical structure there is elastic deformation, gap and transmission hysteresis, and complicated, manufacture, processing, installation difficulty
Greatly.
2nd, existing horizontal digital-control turntable+bridge plate+auxiliary tailstock form turntable：Tailstock only serves Auxiliary support effect, turns
Platform one side driving there is provided driving force it is small, turntable braking torque is small, turret supports poor rigidity.
3rd, existing mechanical type numerical control turntable bearing uses single sealing structure, and sealing effectiveness is bad, turntable bearing
Life-span is low, and turntable reliability is bad.
The content of the invention
Technical problem to be solved in the utility model be the defect for overcoming prior art there is provided a kind of slab bridge formula turntable,
It drives structures using double, and turret supports are rigidly good, and driving torque is big, it is adaptable to the four axis processing of large-scale precision based plate and
The indexing processing of four axles.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：A kind of slab bridge formula turntable, it includes：
It is used for clamping workpiece on slab bridge part, the slab bridge part；
Driving part, the driving part includes two drive devices, one of drive device and the one of slab bridge part
End is connected, and another drive device is connected with the other end of slab bridge part, is synchronously driven with will pass through two drive devices
Dynamic slab bridge part does gyration.
Further, slab bridge formula turntable also includes the base plate part for being used to be connected with platen face, one of driving
Device is arranged on the one end of base plate part, and another drive device is arranged on the other end of base plate part.
Further for direct drive bridge plate part, make driving table top without drive gap and transmission hysteresis, improve and drive
The positioning precision of dynamic table top, the drive device includes shell group, torque motor and driving table top, and the driving table top is rotatably
In shell group, the torque motor has stationary part and rotor portion, and the stationary part is fixed in shell group, described
Driving table top is connected with the rotor portion, so that when torque motor is acted, the torque motor drives the driving table top
Rotated in shell group.
Braked further for driving table top, and improve braking torque, it is ensured that braking quality is reliable, the driving
Device also includes the brake gear for being used to table top standard will be driven to be parked in a certain rotational angle.
A kind of brake gear of concrete structure is further provided, the shell group has turret base, the driving table top
It can be rotated to support in turret base, the brake gear includes brake block and piston portion, brake block is arranged on driving platform
On face, piston portion has piston；When drive table top do not braked when, the brake block is not contacted with turret base, and with institute
Stating has gap between turret base, when driving table top to need to be braked, the piston portion action, the piston effect in
The brake block, makes the brake block together with turret base compression abutting.
Further for the rotational angle of monitoring driving table top, the drive device also includes being used to measure driving table top
The angle measurement unit of rotational angle, the angle measurement unit includes connecting shaft and angular encoder, the connecting shaft and institute
State rotor portion to be connected, the angular encoder is arranged in connecting shaft.
Further for being easy to each cable to install concentratedly and repair, the drive device also includes concentrating outgoing line device, institute
Stating concentration outgoing line device includes outlet protective cover, electrical connector, at least one joint and for housing respectively connecing for drive device
The outlet base of line cable, the outlet floor installation is in shell group, and the outlet protective cover is arranged on outlet base, and is covered
Electrical connector is stated in residence, and the joint is arranged on outlet protective cover, and spliced cable, electrical connector and joint connect to be formed
Connection line.
Further for good sealing property is realized, the contamination resistance of turntable bearing is improved, the use of bearing is improved
Life-span, the shell group has turret base, and the driving table top can be rotated to support in turret base by bearing, described turn
The bearing chamber of accommodating bearing, and the turret base and the driving table top are formed between platform base and the driving table top
Between have and be used for isolation bearing room and outside hermetic unit.
Further provide the concrete structure of hermetic unit, the hermetic unit include mechanical labyrinth seal structure,
Rotary seal structure and air curtain protecting structure；Wherein, annular boss is provided with the axial end of turret base, driving table top exists
It is provided with corresponding position in annular groove, annular boss insertion annular groove and forms a type of mechanical labyrinth seal
Structure；The platform that radially protruding is provided with protective cover, the periphery wall of the driving table top is installed on the periphery wall of turret base
Rank, the protective cover is assembled together with step, and covers the step, so as to form a further type of mechanical labyrinth
Sealing structure；Be provided with rotating seal ring on the axial end of the turret base, and the lip of rotating seal ring with it is described
The axial end of table top is driven to be in close contact, so as to form rotary seal structure；The turret base and the driving table top it
Between be provided with connection bearing chamber and can inject the hermetic seal inner chamber of pressure air, the hermetic seal inner chamber forms air curtain protection knot
Structure.
Cooled down further for torque motor, have on the rotor portion and set in water-cooling channel, the shell group
It is equipped with water cooling inlet pipeline and water cooling outlet pipeline, the outlet of the water cooling inlet pipeline and the water cooling outlet pipe
The import on road is connected with water-cooling channel respectively.
Employ after above-mentioned technical proposal, the utility model has following beneficial effect：
1st, clamping workpiece is on bridge plate part, and the power of bridge plate part revolution is provided by the drive device for occuping both sides, is driven
Dynamic device is driven using torque motor, can provide driving torque, its moment of torsion is nearly twice of unilateral driving torque, due to using
Both sides driving and supporting bridge board member, the rigidity of support of the bridge plate formula turntable is several times of the board-like turntable of unilateral drive axle, work
The suface processing quality of part is also obviously improved, when bridge plate formula turntable needs accurately to stop at some angle, the driving of both sides
The brake gear of device brakes simultaneously, and braking torque is twice of the board-like turntable of unilateral drive axle, and braking effect is good, braking quality
Reliably, so as to ensure the workpiece processing quality of the state, it is particularly suitable for use in the four axis processing and four of large-scale precision based plate
Axle indexing processing；
2nd, bearing chamber is sealed using unique hermetic unit, and hermetic unit may include the mechanical labyrinth seal knot of twice
Structure, one rotary seal structure, one of air curtain protecting structure, improve the contamination resistance of turntable bearing, improve bearing and use
Life-span.
Brief description of the drawings
Fig. 1 is the structural representation of slab bridge formula turntable of the present utility model；
Fig. 2 is the structure sectional view of slab bridge formula turntable of the present utility model；
Fig. 3 is the structural representation of drive device of the present utility model；
Fig. 4 is Fig. 3 top view；
Fig. 5 is Fig. 3 A-A sectional views；
Fig. 6 is Fig. 4 B-B sectional views；
Fig. 7 is Fig. 4 C-C sectional views；
Fig. 8 is Fig. 4 D-D sectional views.
Embodiment
In order that content of the present utility model is easier to be clearly understood, below according to specific embodiment and with reference to attached
Figure, is described in further detail to the utility model.
As shown in Fig. 1~8, a kind of slab bridge formula turntable, it includes：
It is used for clamping workpiece on slab bridge part 2, the slab bridge part 2；
Driving part, the driving part includes two drive devices 1, one of drive device 1 and slab bridge part 2
One end is connected, and another drive device 1 is connected with the other end of slab bridge part 2, same will pass through two drive devices 1
Step driving slab bridge part 2 does gyration.
As shown in figure 1, slab bridge formula turntable also includes the base plate part 3 for being used to be connected with platen face, one of them
Drive device 1 is arranged on the one end of base plate part 3, and another drive device 1 is arranged on the other end of base plate part 3
On.The base plate part 3 includes bottom plate 31 and positioning key 32, and bottom plate 31 is connected by screw in platen face, and is passed through
Positioning key 32 is positioned.
As shown in figure 5, the drive device 1 includes shell group, torque motor and driving table top 11, the driving table top 11 can
It is rotationally mounted in shell group, the torque motor has stationary part 115 and rotor portion 129, the stationary part 115 is consolidated
It is scheduled in shell group, the driving table top 11 is connected with the rotor portion 129, so as to when torque motor is acted, the torque
The motor driving driving table top 11 is rotated in shell group；Wherein, the rotor portion 129 passes through screw and a transition connecting shaft
130 are connected, and transition connecting shaft 130 is connected by screw with driving table top 11 again, so that power is transferred into driving table top 11；Separately
Outside, suspension ring 15 are provided with the shell group, to facilitate lifting.
Specifically, the slab bridge part 2 includes slab bridge 22 and two support blocks 21, and support block 21 is connected to accordingly
Drive on table top 11, one end of slab bridge 22 is connected with one of support block 21, the other end of slab bridge 22 is supported with another
Block 21 is connected.
Clamping workpiece is on bridge plate 22, and the power that bridge plate 22 is turned round is provided by the drive device 1 for occuping both sides, drive device
1, using torque motor driving, can provide driving torque, its moment of torsion is nearly twice of unilateral driving torque, due to using both sides
Drive and supporting bridge board member, the rigidity of support of the bridge plate formula turntable is several times of the board-like turntable of unilateral drive axle, workpiece
Suface processing quality is also obviously improved, and the four axis processing and the indexing of four axles for being particularly suitable for use in large-scale precision based plate add
Work.
As shown in figure 5, the drive device also includes the brake for being used to the standard of table top 11 will be driven to be parked in a certain rotational angle
Device.
As shown in figure 5, the shell group has turret base 14, the driving table top 11 can be rotated to support on turret base
On 14, the brake gear includes brake block 131 and piston portion, and brake block 131 is arranged on driving table top 11, piston portion
With piston 18；When drive table top 11 do not braked when, the brake block 131 is not contacted with turret base 14, and with described turn
There is gap, when driving table top 11 to need to be braked, the piston portion action, the piston 18 is acted between platform base 14
In the brake block 131, make the brake block 131 together with the compression abutting of turret base 14.When bridge plate formula turntable needs standard
When really stopping at some angle, the brake gear of the drive device 1 of both sides brakes simultaneously, and braking torque is that unilateral drive axle is board-like
Twice of turntable, braking effect is good, braking quality is reliable, so as to ensure the workpiece processing quality of the state.
The operation principle of brake gear is as follows：When driving table top 11 to run well, brake block when driving table top 11 rotates
131 keep 0.2mm gaps with the axial end of turret base 14, so as to ensure that brake block 131 can be rotated freely, when turntable needs
When standard is parked in some angle, piston portion action, piston 18 feeds compression brake block 131 to the left, and the compression of brake block 131 produces micro-
Quantitative change shape compresses the axial end of turret base 14, driving table top 11 is rapidly stopped by the frictional force between both
Get off and be maintained at the angle position of needs；When the turntable in tight state of stopping, which needs to reset, to be operated again, piston portion transfer
Make, piston 18 is fed to the right, and the right side of brake block 131 is left in the left side of piston 18, because brake block uses excellent elasticity
Spring steel make, brake block 131 returns to free state due to the elastic deformation of itself, now brake block 131 and turntable bottom
0.2mm gaps between the axial end of seat 14 occur again, and driving table top 11 is returned to being capable of free-running state；Further
Ground, during in order to ensure that turntable brakes and when turntable brake resets, the synchronism of the brake of two drive devices 1 in both sides,
Hydraulic Synchronizing Valve is devised during design of Hydraulic System.
As shown in figure 5, the drive device also includes the angular surveying dress for being used to measure the rotational angle of driving table top 11
Put, the angle measurement unit includes connecting shaft 128 and angular encoder 127, the connecting shaft 128 and the rotor portion
129 are connected, and the angular encoder 127 is arranged in connecting shaft 128, so as to be measured to the anglec of rotation of turntable and instead
Feedback.
As shown in figure 5, the shell group has turret base 14, the driving table top 11 is rotatably supported by bearing 13
In turret base 14, the bearing chamber of accommodating bearing 13 is formed between the turret base 14 and the driving table top 11, and
And there is the hermetic unit for being used for isolation bearing room and outside between the turret base 14 and the driving table top 11.
As shown in figure 5, the hermetic unit includes mechanical labyrinth seal structure, rotary seal structure and air curtain protection
Structure；Wherein, annular boss 141 is provided with the axial end of turret base 14, driving table top 11 is set on corresponding position
It is equipped with annular groove 111, the insertion annular groove 111 of annular boss 141 and forms a type of mechanical labyrinth seal structure；
It is provided with the periphery wall of turret base 14 on protective cover 133, the periphery wall of the driving table top 11 and is provided with radially protruding
Step 112, the protective cover 133 is assembled together with step 112, and covers the step 112, so as to form another class
The mechanical labyrinth seal structure of type；Rotating seal ring 12 is provided with the axial end of the turret base 14, and is rotated
The axial end of the lip of sealing ring 12 and the driving table top 11 is in close contact, so as to form rotary seal structure；Described turn
Connection bearing chamber is provided between platform base 14 and the driving table top 11 and can inject the hermetic seal inner chamber of pressure air, it is described
Hermetic seal inner chamber forms air curtain protecting structure.Pressure passes through hermetic seal for the dry air within 0.5bar when rotation of rotary table is run
Pipe joint 121 and respective line enter hermetic seal inner chamber, so that small pressed gas barotropic field is set up at hermetic seal inner chamber,
It so can effectively prevent pollutant from entering bearing, be avoided that bearing grease lubrication by airflow influence, this four road sealing knot again
The unique combined turntable bearing seal structure of structure composition.
As shown in Figure 7,8, in order to prevent torque motor from overheating, there is water-cooling channel, the shell group on the rotor portion
On be provided with water cooling inlet pipeline 100 and water cooling outlet pipeline 200, the outlet of the water cooling inlet pipeline 100 and institute
The import for stating water cooling outlet pipeline 200 is connected with water-cooling channel respectively, and temperature sensor is provided with torque motor, can be with
Torque motor is gone out to carry out temperature feedback and thermal distortion compensation.
As shown in figure 5, the drive device also includes concentrating outgoing line device, the concentration outgoing line device is protected including outlet
Cover 124, electrical connector 123, at least one joint 125 and for the outlet base for each spliced cable for housing drive device
122, the outlet base 122 is arranged in shell group, and the outlet protective cover 124 is arranged on outlet base 122, and covers institute
Electrical connector 123 is stated, the joint 125 is arranged on outlet protective cover 124, spliced cable, electrical connector 123 and joint
125 connections form connection line；Certainly, by turntable torque motor water cooling inlet/outlet pipe joint, the air curtain protecting structure of bearing
Pipe joint also focus on outlet base 122 manage concentratedly, in order to install and repair.
Particular embodiments described above, enters to technical problem, technical scheme and the beneficial effect that the utility model is solved
Go further description, should be understood that and the foregoing is only specific embodiment of the utility model, and without
It is all within spirit of the present utility model and principle in limitation the utility model, any modification, equivalent substitution and improvements done
Deng should be included within protection domain of the present utility model.
Claims (10)
1. a kind of slab bridge formula turntable, it is characterised in that：It includes：
It is used for clamping workpiece on slab bridge part (2), the slab bridge part (2)；
Driving part, the driving part includes two drive devices (1), one of drive device (1) and slab bridge part (2)
One end be connected, another drive device (1) is connected with the other end of slab bridge part (2), will pass through two drivings
Synchronously driving slab bridge part (2) does gyration to device (1).
2. slab bridge formula turntable according to claim 1, it is characterised in that：Also include being used for what is with platen face be connected
Base plate part (3), one of drive device (1) is arranged on the one end of base plate part (3), another drive device
(1) on the other end of base plate part (3).
3. slab bridge formula turntable according to claim 1, it is characterised in that：The drive device includes shell group, torque motor
With driving table top (11), the driving table top (11) is rotatably installed in shell group, and the torque motor has stationary part
(115) and rotor portion (129), the stationary part (115) is fixed in shell group, the driving table top (11) and the rotor
Partly (129) are connected, so that when torque motor is acted, the torque motor driving driving table top (11) turns in shell group
It is dynamic.
4. slab bridge formula turntable according to claim 3, it is characterised in that：The drive device also includes being used to that platform will to be driven
Face (11) standard is parked in the brake gear of a certain rotational angle.
5. slab bridge formula turntable according to claim 4, it is characterised in that：The shell group has turret base (14), described
Driving table top (11) can be rotated to support in turret base (14), and the brake gear includes brake block (131) and piston portion
Point, brake block (131) is arranged on driving table top (11), and piston portion has piston (18)；When driving table top (11) is not stopped
Che Shi, the brake block (131) does not contact with turret base (14), and has gap between the turret base (14), when
When driving table top (11) needs to be braked, the piston portion action, the piston (18) acts on the brake block (131),
Make the brake block (131) together with turret base (14) compression abutting.
6. slab bridge formula turntable according to claim 3, it is characterised in that：The drive device also includes being used to measure driving
The angle measurement unit of the rotational angle of table top (11), the angle measurement unit includes connecting shaft (128) and angular encoder
(127), the connecting shaft (128) is connected with the rotor portion (129), and the angular encoder (127) is arranged on connecting shaft
(128) on.
7. slab bridge formula turntable according to claim 3, it is characterised in that：The drive device also includes concentrating out traditional thread binding
Put, the concentration outgoing line device includes outlet protective cover (124), electrical connector (123), at least one joint (125) and used
In the outlet base (122) of each spliced cable of accommodating drive device, the outlet base (122) is arranged in shell group, described
Outlet protective cover (124) is arranged on outlet base (122), and covers the electrical connector (123), the joint (125)
It is arranged on outlet protective cover (124), spliced cable, electrical connector (123) and joint (125) connection form connection line.
8. slab bridge formula turntable according to claim 3, it is characterised in that：The shell group has turret base (14), described
Driving table top (11) be can be rotated to support in turret base (14) by bearing (13), and the turret base (14) is driven with described
The bearing chamber of accommodating bearing (13), and the turret base (14) and the driving table top are formed between dynamic table top (11)
(11) having between is used for isolation bearing room and outside hermetic unit.
9. slab bridge formula turntable according to claim 8, it is characterised in that：It is close that the hermetic unit includes mechanical labyrinth
Seal structure, rotary seal structure and air curtain protecting structure；Wherein, it is provided with annular boss on the axial end of turret base (14)
(141), driving table top (11) is provided with annular groove (111) on corresponding position, and annular boss (141) is embedded in annular groove
(111) a type of mechanical labyrinth seal structure is formed in；Protective cover is installed on the periphery wall of turret base (14)
(133) step (112) of radially protruding, the protective cover (133) and platform, are provided with the periphery wall of the driving table top (11)
Rank (112) is assembled together, and covers the step (112), so as to form a further type of mechanical labyrinth seal knot
Structure；Rotating seal ring (12), and the lip of rotating seal ring (12) are provided with the axial end of the turret base (14)
It is in close contact with the axial end of the driving table top (11), so as to form rotary seal structure；The turret base (14) and
Connection bearing chamber is provided between the driving table top (11) and can be injected in the hermetic seal inner chamber of pressure air, the hermetic seal
Chamber formation air curtain protecting structure.
10. slab bridge formula turntable according to claim 3, it is characterised in that：There is water-cooling channel, institute on the rotor portion
State and water cooling inlet pipeline (100) and water cooling outlet pipeline (200) are provided with shell group, the water cooling inlet pipeline
(100) outlet and the import of the water cooling outlet pipeline (200) is connected with water-cooling channel respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720032423.0U CN206445522U (en) | 2017-01-11 | 2017-01-11 | Slab bridge formula turntable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720032423.0U CN206445522U (en) | 2017-01-11 | 2017-01-11 | Slab bridge formula turntable |
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| Publication Number | Publication Date |
|---|---|
| CN206445522U true CN206445522U (en) | 2017-08-29 |
Family
ID=59672309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720032423.0U Active CN206445522U (en) | 2017-01-11 | 2017-01-11 | Slab bridge formula turntable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206445522U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624840A (en) * | 2017-01-11 | 2017-05-10 | 新誉集团有限公司 | Slab bridge type rotary table |
| CN108015563A (en) * | 2017-11-14 | 2018-05-11 | 江阴精力模具工程有限公司 | A kind of high accuracy the 4th axis rotary table of three axis numerically controlled machine |
-
2017
- 2017-01-11 CN CN201720032423.0U patent/CN206445522U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106624840A (en) * | 2017-01-11 | 2017-05-10 | 新誉集团有限公司 | Slab bridge type rotary table |
| CN106624840B (en) * | 2017-01-11 | 2018-10-23 | 新誉集团有限公司 | Slab bridge formula turntable |
| CN108015563A (en) * | 2017-11-14 | 2018-05-11 | 江阴精力模具工程有限公司 | A kind of high accuracy the 4th axis rotary table of three axis numerically controlled machine |
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