CN203696440U - Air-floated rotating table - Google Patents

Air-floated rotating table Download PDF

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Publication number
CN203696440U
CN203696440U CN201320895056.9U CN201320895056U CN203696440U CN 203696440 U CN203696440 U CN 203696440U CN 201320895056 U CN201320895056 U CN 201320895056U CN 203696440 U CN203696440 U CN 203696440U
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CN
China
Prior art keywords
piston
base
air
panoramic
rotating
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Active
Application number
CN201320895056.9U
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Chinese (zh)
Inventor
李文涛
张晶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Heavy Equipment Engineering Research Co Ltd
China First Heavy Industries Co Ltd
Original Assignee
Tianjin Heavy Equipment Engineering Research Co Ltd
China First Heavy Industries Co Ltd
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Application filed by Tianjin Heavy Equipment Engineering Research Co Ltd, China First Heavy Industries Co Ltd filed Critical Tianjin Heavy Equipment Engineering Research Co Ltd
Priority to CN201320895056.9U priority Critical patent/CN203696440U/en
Application granted granted Critical
Publication of CN203696440U publication Critical patent/CN203696440U/en
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Abstract

The utility model discloses an air-floated rotating table which comprises a rotating table, a base, a center shaft and a piston, wherein the piston is installed in a center coordination hole in the base, sealed annular air chambers are disposed between the piston and upper and lower coordination faces of the base, and the annular air chambers are communicated with a gas supply device; the center shaft is connected to the bottom of the rotating table and is also installed in the joint center coordination hole of the piston and the base; the rotating table is disposed above the base and the piston; and the rotating table is equipped with scales. The rotating table is floated pneumatically by the piston through the annular air chambers, so that an operator can push the rotating table with small force, no rotating driving mechanism is needed and time and force are saved. After the rotating table with scales is added on a common planer-type milling machine, processing of a plurality of side elevations of a work piece can be mounted and completed for one time and processing efficiency is increased.

Description

A kind of air-flotation type rotary table
Technical field
The utility model relates to a kind of machining rotary table, particularly a kind of air-flotation type rotary table.
Background technology
General large-scale ordinary gantry milling machine is owing to there is no rotary table, when four side elevations of machining large workpiece, processing after a side elevation, rotates 90 degree with the overhead traveling crane workpiece of slinging, then re-start be installed, centering, reprocess next side elevation.Four side elevations processing that completes a workpiece need repeat to lift, is installed, centering four times, and working (machining) efficiency is low, and production cost is high.
Summary of the invention
In order to address the above problem, the utility model provides a kind of air-flotation type rotary table, is applicable to milling machine processing.The technical solution adopted in the utility model is as follows:
A kind of air-flotation type rotary table, comprises panoramic table, base, central shaft and piston; Piston is arranged in the mating holes of base center, the Packed ring-type air cavity of tool between the upper and lower mating surface of piston and base, ring-type air cavity be communicated with to device of air; Central shaft puts together on the bottom of panoramic table, and simultaneously central shaft is arranged in piston and the common center mating holes of base, central shaft and panoramic table, base, the piston coaxial heart; Panoramic table is positioned on base and piston.
Further, on panoramic table, be provided with anglec of rotation positioning pin hole, on panoramic table, be also provided with location graduation chi.
Piston and base are equipped with the sealing ring of sealing ring air cavity on cylindrical fit face, within ring-type air cavity is positioned at the space of sealing ring formation; At the upper end face of base, a spacing ring is set, for the upward stroke of limited piston.
Between central shaft and piston, rolling bearing is housed, central shaft and panoramic table, base, the piston coaxial heart.
One location copper sheathing is set in the center mating holes of base, and central axle sleeve is located among the copper sheathing of location.
On panoramic table, be provided with 0 °, 30 °, 45 °, 60 °, 90 °, 180 ° anglec of rotation positions.
The upper end face lapping-in of the bottom surface of panoramic table and base, piston, compresses by pressing plate.
Ring-type air cavity is connected to device of air by gas piping, is provided with reversing switch and air cleaner on gas piping.
The utility model is owing to taking above technical scheme, can bring following beneficial effect: what 1, rotary table described in the utility model adopted is air supporting principle design, when panoramic table will rotate, by air floating piston by its jack-up, make its base that comes off, revolution frictional resistance is little, and the bearing drag that machine operation person only need to overcome central shaft part can promote panoramic table rotation by hand, do not need to design rotary motion mechanism, time saving and energy saving.2, around piston air cavity, sealing ring is set, has guaranteed the sealing of air cavity.3, between central shaft and base, piston, rolling bearing is set, copper sheathing location is set simultaneously, both guaranteed the turning power of axle, guaranteed again three's concentric.4, on base, end face arranges spacing ring, has limited the upward stroke of piston, has guaranteed that piston can not depart from and coordinate with the mating holes of base.5, on panoramic table divide have typical several angle of revolution, and adopt alignment pin positioning instant can, do not need to design circular index mechanism, overall structure is simple, low cost of manufacture.6, after this rotary table adds and puts on ordinary gantry milling machine, the processing of four side elevations of the large-scale workpiece that can once be installed, has improved working (machining) efficiency.
Accompanying drawing explanation
Fig. 1 is the installation diagram of a kind of air-flotation type rotary table of the utility model;
Fig. 2 is the profile schematic diagram of a kind of air-flotation type rotary table of the utility model;
Fig. 3 is a kind of air-flotation type rotary table of the utility model piston structure schematic diagram;
Fig. 4 is a kind of air-flotation type rotary table of the utility model center spindle structure schematic diagram;
Fig. 5 is a kind of air-flotation type rotary table of the utility model location copper sheathing structural representation.
The specific embodiment
Below with reference to the accompanying drawings, the specific embodiment of the present utility model is described in detail.
As shown in Figure 1, 2, a kind of air-flotation type rotary table, comprises panoramic table 1, base 2, central shaft 3, piston 4.
Base 2 centers have mating holes, and piston 4 is arranged in the mating holes of base 2; On the cylindrical fit face contacting with base 2 at piston 4, offer closure gasket groove on piston, sealing ring 5,6 is arranged in closure gasket groove.Piston 4 is contained in the mating holes of base 2, by the sealing function of side seal circle 5,6, makes piston 4 and base 2 between upper and lower mating surface, form ring-type air cavity 7, and ring-type air cavity 7 is connected to device of air by gas piping 8, to give air cavity air feed.On gas piping 8, be provided with reversing switch 9 and air cleaner 10, reversing switch 9 for controlled pressure gas into and out of, air cleaner 10 for moisture and the impurity of filtering compressed air, guarantee to pass into the clean and dry of pressure air.Under the effect of ring-type air cavity 7, piston 4 can lifting.
Further, for the rising space of limited piston 4, at the upper end face of base 2, also closing restraining position ring block 11, the upward stroke of limited piston 4, has guaranteed that piston can not depart from and coordinate with the mating holes of base.
Central shaft 3 puts together on the bottom surface of panoramic table 1, both concentrics, as shown in Figure 4.On central shaft 3, be with rolling bearing 12, install in piston 4 and the common center mating holes of base 2 together with central shaft.Further, location copper sheathing 13 is housed in base 2 center mating holes, is positioned at the below of rolling bearing 12, as shown in Figure 5, after central shaft 3 is inserted in copper sheathing 13, copper sheathing 13 has guaranteed the concentric of panoramic table 1 and base 2.
Panoramic table 1, under the supporting role of central shaft 3, is placed on base 2 and piston 4, and the mating surface of panoramic table 1 and base 2, piston 4 guarantees that by facing-up two contact-making surfaces in plane and inclined-plane contact simultaneously.
On panoramic table 1, be provided with 0 °, 30 °, 45 °, 60 °, 90 °, 180 ° several anglecs of rotation, be provided with dowel hole at these angle places, accurately locate with alignment pin 15.Other rotary angle position is estimated location by the rule 14 on panoramic table 1 circumference, and owing to being human eye range estimation location, poor accuracy generally can only use in the rough machined situation of blank.
On base 2, the dowel hole coordinating with panoramic table 1 is set, alignment pin 15 inserts wherein, for accurately locking the angle of revolution of panoramic table 1.Top at panoramic table 1 is also provided with pressing plate 16, for compressing panoramic table 1, itself and base 2 is fitted tightly.
When work, workpiece is placed on panoramic table 1, and gas piping 8 is given after ring-type air cavity 7 injection pressure gases, piston 4 drive panoramic table 1 and on all workpiece upwards promote together, the faying face of panoramic table 1 and base 2 disengages; After the limited ring 11 of piston 4 is spacing, stop motion, now because the faying face of panoramic table 1 and base 2 disengages, lose frictional resistance, rotate 1 of panoramic table and need to overcome the rolling frictional resistance that rolling bearing 12 produces, therefore operator can promote easily panoramic table 1 and turn to the angle needing.Insert after alignment pin 15 lockings, rotating switch 9 commutates, and makes air cavity internal pressure air pressure relief (having leakage port 17 on rotating switch 9), panoramic table 1 and on workpiece because the effect of gravity falls after rise downwards together, again fit with base 2, fasten with pressing plate 16.Due to panoramic table 1 again with base 2 laminating after original horizontal accuracy remain unchanged, accurately locate with alignment pin 15 angle of revolution simultaneously, the workpiece therefore clamping on panoramic table 1, without centering again, can directly carry out the processing of next process.

Claims (9)

1. an air-flotation type rotary table, is characterized in that: comprise panoramic table (1), base (2), central shaft (3) and piston (4);
Piston (4) is arranged in the mating holes of base (2) center, the Packed ring-type air cavity of tool (7) between piston (4) and the upper and lower mating surface of base (2), ring-type air cavity (7) be communicated with to device of air;
Central shaft (3) puts together on the bottom of panoramic table (1), and simultaneously central shaft (3) is arranged in piston (4) and the common center mating holes of base (2), central shaft (3) and panoramic table (1), base (2), piston (4) concentric;
Panoramic table (1) is positioned on base (2) and piston (4).
2. air-flotation type rotary table according to claim 1, is characterized in that: on panoramic table (1), be provided with anglec of rotation positioning pin hole, be also provided with location graduation chi on panoramic table.
3. air-flotation type rotary table according to claim 1, is characterized in that: piston (4) is equipped with the sealing ring (5,6) of sealing ring air cavity (7) with base (2) on cylindrical fit face.
4. according to the air-flotation type rotary table described in claim 1 or 3, it is characterized in that: at the upper end face of base (2), the spacing ring of a limited piston (4) upward stroke is set.
5. air-flotation type rotary table according to claim 1, is characterized in that: between central shaft (3) and piston (4), rolling bearing (12) is housed.
6. air-flotation type rotary table according to claim 1 or 5, is characterized in that: a location copper sheathing (13) is set in the center mating holes of base (2), and central shaft (3) is set among location copper sheathing (13).
7. air-flotation type rotary table according to claim 1 and 2, is characterized in that: upper at panoramic table (1), be provided with 0 °, 30 °, 45 °, 60 °, 90 °, 180 ° several anglecs of rotation positions.
8. air-flotation type rotary table according to claim 1, is characterized in that: the upper end face lapping-in of the bottom surface of panoramic table (1) and base (2), piston (4), compresses by pressing plate (16).
9. air-flotation type rotary table according to claim 1, is characterized in that: ring-type air cavity (7) is connected to device of air by gas piping (8), is provided with reversing switch (9) and air cleaner (10) on gas piping (8).
CN201320895056.9U 2013-12-27 2013-12-27 Air-floated rotating table Active CN203696440U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320895056.9U CN203696440U (en) 2013-12-27 2013-12-27 Air-floated rotating table

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320895056.9U CN203696440U (en) 2013-12-27 2013-12-27 Air-floated rotating table

Publications (1)

Publication Number Publication Date
CN203696440U true CN203696440U (en) 2014-07-09

Family

ID=51046939

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320895056.9U Active CN203696440U (en) 2013-12-27 2013-12-27 Air-floated rotating table

Country Status (1)

Country Link
CN (1) CN203696440U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI599437B (en) * 2016-05-06 2017-09-21 Pu-Xuan Qiu Processing machine indexing rotary device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI599437B (en) * 2016-05-06 2017-09-21 Pu-Xuan Qiu Processing machine indexing rotary device

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