CN206316494U - A kind of torque motor drives electric spark with full immersion liquid turntable - Google Patents
A kind of torque motor drives electric spark with full immersion liquid turntable Download PDFInfo
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- CN206316494U CN206316494U CN201621416804.0U CN201621416804U CN206316494U CN 206316494 U CN206316494 U CN 206316494U CN 201621416804 U CN201621416804 U CN 201621416804U CN 206316494 U CN206316494 U CN 206316494U
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- torque motor
- support housing
- revolving shaft
- output revolving
- immersion liquid
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Abstract
The utility model is related to technical field, more particularly to a kind of torque motor drives electric spark with full immersion liquid turntable, it includes supporting housing, workbench, output revolving shaft and torque motor, the torque motor is set in the cavity of the support housing, the stator of the torque motor fixes the support housing, the rotor of the torque motor fixes the output revolving shaft, the output revolving shaft connects the support housing by bearing, the front end of the output revolving shaft stretches out the support housing and connects the workbench, the rear end of the output revolving shaft sets high resolution encoder, the rear end of the support housing is provided with back shroud, the full immersion liquid turntable sealing, the workbench connects stepper motor structure.The utility model is applied to the horizontal-vertical double-purpose of turntable, and vibration and noise caused by reduction mechanical structure preferably meet the demand of sealing in the full immersion liquid process of electric spark, precision and reliability.
Description
Technical field
The utility model is related to technical field, more particularly to a kind of driving full immersion liquid of electric spark of torque motor
Turntable.
Background technology
Electric spark is the important accessory of modern high-grade spark-erosion machine tool with numerical control rotating platform, can carry out continuous division, running accuracy
High the features such as, the whole processing performance of lathe is directly influenced as the important accessory of multi-axis numerical control spark-erosion machine tool.In recent years,
Although domestic multiaxis NC large EDM machine is rapidly developed, the large-scale electric spark numerical-control turntable matched with it
Mostly import equipment, the difficult plus material special-shaped part such as large-scale double shrouded wheel, the shrouded turbines disk in field such as Aeronautics and Astronautics, the energy
Need large-scale multiaxis spark erosion equipment, it is desirable to have the large-scale full immersion liquid numerical control turntable of the independent research matched.
The appearance of full immersion liquid turntable, universal driving shaft of the immersion liquid in work oil groove is provided for numerically controlled discharge machine, such
Turntable, which is favorably improved, completes complex-curved working ability, expands the range of work of spark-erosion machine tool, reduces machined electrode number
Amount, simplifies electrode path.Traditional large-sized numerical control turntable is the rotation that turntable or index dial are realized by worm gear or gear pair
Indexing, can not meet the use of the vertical two kinds of forms that crouch more.Mainly by machine driving, there is yielding, mill in the characteristics of traditional design
Damage, the problems such as backlass is big, permanent dynamic rate using vibration and noise effect to turntable, positioning precision；In addition, also not
Use of the turntable in vertical sleeping two ways can be applied to simultaneously.Therefore, traditional machining tool turntable can not meet large-scale electricity
The lasting Precision Machining demand of the full immersion liquid of spark.
The content of the invention
(1) technical problem to be solved
The utility model provides a kind of torque motor driving electric spark with full immersion liquid turntable, can not for solving prior art
The problem of meeting large-scale electric spark full immersion liquid process requirements, it is applied to the horizontal-vertical double-purpose of turntable, can eliminate machine driving production
Raw abrasion, vibration and noise caused by reduction mechanical structure, preferably meets close in the full immersion liquid process of electric spark
Feng Xing, precision and reliability demand.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model provides a kind of torque motor driving electric spark and turned with full immersion liquid
Platform, including support housing, workbench, output revolving shaft and torque motor, it is characterised in that the support housing is provided with cavity,
The torque motor is equipped with the cavity, the stator of the torque motor is fixed on the madial wall of the support housing,
The rotor of the torque motor is fixed on the output revolving shaft, and the output revolving shaft is connected to the support housing by bearing
Madial wall on, the front end of the output revolving shaft is stretched out the support housing and connected after the workbench, the output revolving shaft
End is provided with the high resolution encoder for being used for controlling the worktable rotary precision, the front end of the support housing and the output
Sealed between rotating shaft, the rear end of the support housing is provided with back shroud, is sealed between the back shroud and the support housing, institute
State workbench and connect the stepper motor structure powered to the workbench.
Wherein, the stepper motor structure includes into electrical carbon brush and enters electrolytic copper ring, and the workbench is described circumferentially arranged with groove
Housed in groove it is described enter electrolytic copper ring, it is described enter electrical carbon brush with it is described enter electrolytic copper ring contact set.
Wherein, the support housing bottom is provided with supporting table, the both sides of the supporting table be symmetrical arranged it is described enter electrical carbon brush.
Wherein, the front end of the support housing is sealed with the output revolving shaft using movable sealing structure, the dynamic sealing knot
Structure is oil-sealing arrangement to be set in the front end side surface of the support housing and before the output revolving shaft and the support housing
Hold the side surface of correspondence position that rotation Glais ring is set.
Wherein, the support housing is provided with air inlet, and pneumostop is constituted for being passed through gas when in use.
Wherein, between the back shroud and the support housing it is, between the support housing and the stator and described
Sealed between output revolving shaft and the workbench using static seal structure, the static seal structure is O-ring seal.
Wherein, the support housing enters wire hole and high resolution encoder entrance hole provided with torque motor.
Wherein, the annular element is provided with cold vertically provided with two interconnected annular grooves on the support housing
But liquid import and cooling liquid outlet, the cooling liquid inlet and the cooling liquid outlet are connected with an annular groove respectively.
Wherein, the stator of the torque motor is fixedly connected by stator pressing plate with the support housing, the torque electricity
The rotor of machine is fixedly connected by rotor press plate with the output revolving shaft.
Wherein, the bearing is crossed roller bearing.
(3) beneficial effect
The torque motor that the utility model is provided drives electric spark with full immersion liquid turntable, compared with prior art with as follows
Advantage：
By the way of torque motor drives, with compact conformation, acceleration is high, response is rapid and positioning precision is high
Feature, can be applied to horizontal-vertical double-purpose；The retentivity of precision and stably is disclosure satisfy that under heavy load using sized cross roller bearings
Property；Using high resolution encoder, guarantee is provided for indexing accuracy；The side being combined using compound dynamic sealing and static seal
Formula, good sealing effect inputs the pneumostop of gas into supporting shell body so that static seal structure everywhere is relatively reliable, from
And turntable integral sealing effect is up to more than IP68；Entered electrically using the radial direction entered electrical carbon brush with enter electrolytic copper ring, enter electric effect
It is good；The type of cooling of stator is directly cooled down using liquid, it is ensured that torque motor provides specified efficient at stable temperature
Power output, effectively prevent because of direct driving motor temperature rise influence turntable precision in addition.
Brief description of the drawings
Fig. 1 drives the electric spark structural representation of full immersion liquid turntable for the torque motor that the utility model is provided；
Fig. 2 drives the electric spark axonometric drawing figure of full immersion liquid turntable for the torque motor that the utility model is provided；
The structural representation for entering electrical carbon brush that Fig. 3 provides for the utility model；
In figure, 1：Workbench；2：Enter electrolytic copper ring；3：Movable sealing structure；4：Bearing；5：Support housing；6：Stator pressing plate；7、
The stator of torque motor；8th, the rotor of torque motor；9th, rotor press plate；10th, high resolution encoder；11st, static seal structure；
12nd, electrical carbon brush is entered；13rd, output revolving shaft；14th, power lug is entered；15th, encoder cable connector；16th, coolant turnover joint；17、
Back shroud；18th, gas-tpe fitting is balanced；19th, carbon brush insulating support；20th, electrical carbon brush is entered；21st, electric support is entered.
Embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Better embodiment of the present utility model is given in accompanying drawing.It these are only preferred embodiment of the present utility model, and unprovoked
This limits the scope of the claims of the present utility model, equivalent structure that every utilization the utility model specification and accompanying drawing content are made or
Equivalent flow conversion, or other related technical fields are directly or indirectly used in, similarly it is included in of the present utility model special
In sharp protection domain.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is herein to be in term used in the description of the present utility model
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " bag
Include the arbitrary and all combination of one or more related Listed Items.
The utility model provides a kind of torque motor driving electric spark with full immersion liquid turntable, can not for solving prior art
The problem of meeting large-scale electric spark full immersion liquid process requirements, it is applied to the horizontal-vertical double-purpose of turntable, can eliminate machine driving production
Raw abrasion, vibration and noise caused by reduction mechanical structure, preferably meets close in the full immersion liquid process of electric spark
Feng Xing, precision and reliability demand.
As shown in figure 1, providing a kind of torque motor driving electric spark full immersion liquid turntable, sheet in the utility model embodiment
Utility model provides torque motor driving electric spark full immersion liquid turntable, including support housing 5, torque motor, output revolving shaft 13
With workbench 1, interior be provided with cavity, cavity of support housing 5 is provided with torque motor, and the stator 7 of torque motor is fixedly connected support
On the madial wall of housing 5, the rotor 8 of torque motor is fixed on the lateral wall of output revolving shaft 13, and output revolving shaft 13 passes through bearing 4
On the madial wall for being connected to support housing 5, the support connecting working table 1 of housing 5, output revolving shaft 13 are stretched out in the front end of output revolving shaft 13
Rear end be provided with high resolution encoder 10, in order to improve the positioning precision of output revolving shaft 13, add in the rear end of output revolving shaft 13
High resolution encoder 10 is filled, turned position can be directly detected, realize closed-loop Detection ＆ Controling.Support the front end of housing 5
It is sealing state between output revolving shaft 13, the rear end of support housing 5 is provided with back shroud 17, and back shroud 17 and support housing 5
Between be sealing state, workbench 1 connects the stepper motor structure that oriented workbench 1 is powered.The torque motor that the utility model is provided
Drive electric spark with full immersion liquid turntable, by the way of direct drive of torque motor, delicate structure, occupy little space, can expire simultaneously
The vertical sleeping two ways of foot is used；The seal form being combined using movable sealing structure and static seal structure, preferably meets electricity fire
The sealing in full immersion liquid process is spent, high resolution encoder 10 is set using the tail end in output revolving shaft 13, can be controlled
The anglec of rotation of turntable processed, so as to ensure the demand of precision and reliability in the full immersion liquid process of electric spark.
The torque motor that the utility model is provided drives electric spark with full immersion liquid turntable, is directly driven using torque motor
Mode, the stator 7 of torque motor, the rotor 8 of torque motor are directly connected with support housing 5 and output revolving shaft 13 respectively, its work
It by electromagnetic conversion is mechanically operated form to be as principle, instead of the mechanical driving part of traditional turntable, its not only structure
Compact, and the abrasion that machine driving is produced is eliminated, vibration, noise etc. effectively caused by reduction mechanical structure.In addition, support
Housing 5, output revolving shaft 13 are directly connected to the rotor 8 of the stator 7 of torque motor, torque motor respectively, can have turntable and add
The advantages of speed is high, response is rapid, positioning precision is high, overcomes asking for the multiple part caused low-responses of transmission of original complex mechanism
Topic；Because its structure type is simple, compared with turbine and worm, processing and manufacturing difficulty is reduced.
Torque motor driving electric spark full immersion liquid turntable, the effect of high resolution encoder 10 that the utility model is provided
It is, for measuring the relative angular displacement of output revolving shaft 13, and to pass information to torque motor, to control the essence of output revolving shaft 13
Really indexing rotation.Meanwhile, high resolution encoder 10 is directly installed on output revolving shaft 13, it is ensured that high resolution encoder
10 and the axiality of output revolving shaft 13, it is to avoid because axiality is overproof and caused by spindle index it is inaccurate, rotate and to be obstructed, generate heat very
Occur to the phenomenon for damaging precision encoder.
As shown in Fig. 2 in the present embodiment, stepper motor structure includes into electrical carbon brush 12 and enters electrolytic copper ring 2, and workbench 1 is circumferentially
Provided with groove, housed in groove into electrolytic copper ring 2, enter electrical carbon brush 12 and set with entering the periphery contact of electrolytic copper ring 2.Electrical spark working man-hour,
Workpiece is powered as a pole of electric discharge, and processing another pole is realized by entering electrical carbon brush 12.Specifically, as shown in figure 3, entering electricity
Carbon brush 12 includes into electrical carbon post 20, enters electric support 21 and carbon brush insulating support 19, enters electrical carbon post 20 by entering electrical carbon post 20 with entering
Electrolytic copper ring 2 is contacted, so as to realize that electricity is entered in axial direction by entering electrolytic copper ring 2 in the presence of electrical carbon post 20 is entered.
In the present embodiment, in order to fix support housing 5 and fixed stepper motor structure, the bottom of support housing 5 is provided with support
Platform, supporting table be symmetrically arranged on two with to workbench enter electricity enter electrical carbon brush 12.
In the present embodiment, the output end of output revolving shaft 13 uses the dynamic sealing that the structure of labyrinth seal and oil sealing sealing is constituted
Structure.Labyrinth seal is that several belt sealing teeth being arranged in order are set around rotating shaft, and a series of sections are formed between tooth and tooth
Ebb interval and expansion cavity, sealed medium produce throttle effect at the gap by tortuous labyrinth and reach the mesh of Drain Resistance
's.The contactless dynamic sealing that fluid is leaked is limited with some labyrinth type tortuous passageways.Oil sealing sealing is the machinery for oil sealing
Element, it will need the part of lubrication to isolate with part of exerting oneself in drive disk assembly, be unlikely to allow oil seepage, specifically,
Rotation Glais ring is set and in support on the side surface with the front end corresponding position of the support housing 5 of output revolving shaft 13
The front end of housing 5 sets oil-sealing arrangement.Movable sealing structure is constituted using the structure of labyrinth seal and oil sealing sealing, it is ensured that output
The sealing of rotating shaft output end；Also, support housing 5 and the junction of back shroud 17, the stator of support housing 5 and torque motor
7 junction and the junction of output revolving shaft 13 and workbench 1 are respectively provided with static seal structure 11, and the static seal structure 11 is specific
Be set to O-ring seal, with formed combination static seal in the form of；In addition, equalization inlet is provided with support housing 5,
The gas of air pressure balance is kept for being passed through, so as to be sealed using air pressure balance, so as to be formed in sealing space pneumatic
Sealing, when being passed through balanced gas, the access balance gas-tpe fitting 18 at equalization inlet is flat by balancing the realization of gas-tpe fitting 18
The access of weighing apparatus gas.Seal form more than, the sealing effectiveness of the turntable reaches more than IP68, in being the full immersion oil liquid of turntable
Ensure there is provided reliable sealing, meet the demand of full immersion liquid processing.
Torque motor, which is provided with, in the present embodiment, on support housing 5 enters wire hole and high resolution encoder entrance hole.Can
With understanding, when being powered to torque motor, torque motor, which enters at wire hole, to be accessed into electric wire cable joint 14, enters electric wire through power
Torque motor enters wire hole and is connected with torque motor；When high resolution encoder supplies signal, connect at high resolution encoder entrance hole
Enter encoder cable connector 15, cable is connected through high resolution encoder entrance hole with high resolution encoder.
In the present embodiment, in order to ensure torque motor provides specified efficient power output at stable temperature, and
The precision of the direct-drive type temperature rise influence turntable because of torque motor is prevented effectively from, using the type of cooling for directly cooling down stator.
Specifically it is set to, sets two annular grooves vertically on the stator of torque motor, two annular grooves are interconnected, in supporting shell
Cooling liquid inlet and cooling liquid outlet are provided with body 5, and cooling liquid inlet and cooling liquid outlet connect with an annular groove respectively
It is logical.During use, coolant turnover joint 16 is respectively connected in cooling liquid inlet and cooling liquid outlet, entering for coolant is realized
Go out circulation, by being passed through coolant in interconnected annular groove on stator 7, directly cooling stator can be realized, so as to have
Effect avoids the precision of the direct-drive type temperature rise influence turntable because of torque motor.
In the present embodiment, in order to realize the stator 7 and rotor 8 of torque motor respectively with supporting housing 5 and output revolving shaft 13
Be fixedly connected, the stator 7 of torque motor is fixedly connected by stator pressing plate 6 with support housing 5, and the rotor 8 of torque motor leads to
Rotor press plate 9 is crossed to be fixedly connected with output revolving shaft.Specifically, the cross section of support housing 5 and output revolving shaft 13 is disposed as rank
Scalariform, is supported at the ladder of housing 5 and the rear end of stator 7 sets stator pressing plate 6, and by bolt that stator pressing plate 6 is tight respectively
Gu support housing 5 and torque motor stator 7 on, at the ladder of output revolving shaft 13 and rotor 8 rear end set rotor press plate
9, and by bolt be fastened on rotor press plate respectively on the rotor 8 of output revolving shaft 13 and torque motor.
In the present embodiment, adopt sized cross roller bearings and realize that support housing 5 is connected with the rotation of output revolving shaft 13.This practicality is new
The torque motor that type is provided drives electric spark with full immersion liquid turntable, can be expired using high accuracy, the sized cross roller bearings of high rigidity
The retentivity and stability of precision under lumping weight type load, it is ensured that the geometric accuracy of diameter 600mm output revolving shafts 13, it is ensured that hold
Ensure rigidity while by larger axially and radially load, be turntable in horizontal-vertical double-purpose form, complex load effect
The guarantee of geometric accuracy is provided down, from the demand for meeting full immersion liquid electric spark precision round subsection machining high-precision part.
The torque motor that the utility model is provided drives electric spark with full immersion liquid turntable in specific operation, will be to be processed
Workpiece is fixed on workbench 1, and support housing 5 is connected with machine tool body.It is positive to the top workpiece of workbench 1 by machined electrode
Power supply, in the presence of electrical potential difference, electrolyte ionization formation electric field simultaneously forms electric current, produces high temperature, realizes workpiece to be processed
Processing.In the course of work 1 band of workbench electricity directly exported by the brush that enters of contact, through electrode wires be linked back power supply bear
Pole, it is to avoid electric current, which flows through bearing, to be damaged it, ensures that the normal work of turntable.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modifications, equivalent substitutions and improvements made etc. should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of torque motor driving electric spark full immersion liquid turntable, including support housing, workbench, output revolving shaft and torque
Motor, it is characterised in that the support housing, which is provided with cavity, the cavity, is provided with the torque motor, the torque motor
Stator be fixed on it is described support housing madial wall on, the rotor of the torque motor is fixed on the output revolving shaft, institute
State output revolving shaft to be connected to by bearing on the madial wall of the support housing, the support is stretched out in the front end of the output revolving shaft
Housing connects the workbench, and the rear end of the output revolving shaft is provided with the high-resolution for being used for controlling the worktable rotary precision
Encoder, is sealed between the front end of the support housing and the output revolving shaft, and the rear end of the support housing is provided with back shroud,
Sealed between the back shroud and the support housing, the workbench connects the stepper motor structure powered to the workbench.
2. torque motor according to claim 1 drives electric spark with full immersion liquid turntable, it is characterised in that the stepper motor
Structure is included into electrical carbon brush and entering electrolytic copper ring, the workbench housed circumferentially arranged with groove, in the groove it is described enter electrolytic copper ring,
It is described enter electrical carbon brush with it is described enter electrolytic copper ring contact set.
3. torque motor according to claim 2 drives electric spark with full immersion liquid turntable, it is characterised in that the supporting shell
Body bottom is provided with supporting table, the both sides of the supporting table be symmetrical arranged it is described enter electrical carbon brush.
4. torque motor according to claim 1 drives electric spark with full immersion liquid turntable, it is characterised in that the supporting shell
The front end of body is sealed with the output revolving shaft using movable sealing structure, and the movable sealing structure is, before the support housing
Side surface sets oil-sealing arrangement and set in the side surface of the output revolving shaft and the support housing forward end correspondence position
Rotate Glais ring.
5. torque motor according to claim 4 drives electric spark with full immersion liquid turntable, it is characterised in that the supporting shell
Body is provided with air inlet, and pneumostop is constituted for being passed through gas when in use.
6. torque motor according to claim 5 drives electric spark with full immersion liquid turntable, it is characterised in that the back shroud
It is described support housing between, it is described support housing and the stator between and the output revolving shaft and the workbench between
Sealed using static seal structure, the static seal structure is O-ring seal.
7. torque motor according to claim 1 drives electric spark with full immersion liquid turntable, it is characterised in that the supporting shell
Body enters wire hole and high resolution encoder entrance hole provided with torque motor.
8. torque motor according to claim 7 drives electric spark with full immersion liquid turntable, it is characterised in that the stator edge
It is axially arranged with two interconnected annular grooves, the support housing and is provided with cooling liquid inlet and cooling liquid outlet, it is described
Cooling liquid inlet and the cooling liquid outlet are connected with an annular groove respectively.
9. the torque motor according to any one of claim 1-8 drives electric spark with full immersion liquid turntable, it is characterised in that
The stator of the torque motor is fixedly connected by stator pressing plate with the support housing, and the rotor of the torque motor is by turning
Sub- pressing plate is fixedly connected with the output revolving shaft.
10. the torque motor driving electric spark according to any one of claim 1-8 is with full immersion liquid turntable, its feature exists
In the bearing is crossed roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621416804.0U CN206316494U (en) | 2016-12-22 | 2016-12-22 | A kind of torque motor drives electric spark with full immersion liquid turntable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621416804.0U CN206316494U (en) | 2016-12-22 | 2016-12-22 | A kind of torque motor drives electric spark with full immersion liquid turntable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206316494U true CN206316494U (en) | 2017-07-11 |
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ID=59259256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621416804.0U Active CN206316494U (en) | 2016-12-22 | 2016-12-22 | A kind of torque motor drives electric spark with full immersion liquid turntable |
Country Status (1)
| Country | Link |
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| CN (1) | CN206316494U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108213620A (en) * | 2016-12-22 | 2018-06-29 | 北京市电加工研究所 | A kind of torque motor drives the full immersion liquid turntable of electric spark |
| CN113078771A (en) * | 2021-03-30 | 2021-07-06 | 中国电子科技集团公司第十一研究所 | Turntable driving assembly |
-
2016
- 2016-12-22 CN CN201621416804.0U patent/CN206316494U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108213620A (en) * | 2016-12-22 | 2018-06-29 | 北京市电加工研究所 | A kind of torque motor drives the full immersion liquid turntable of electric spark |
| CN113078771A (en) * | 2021-03-30 | 2021-07-06 | 中国电子科技集团公司第十一研究所 | Turntable driving assembly |
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Address after: 100191 Dimon building, B3 Huayuan Road, Haidian District, Beijing Patentee after: Beijing Electric Processing Research Institute Co.,Ltd. Address before: 100191 Dimon building, B3 Huayuan Road, Haidian District, Beijing Patentee before: BEIJING INSTITUTE OF ELECTRO-MACHINING |
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| CP01 | Change in the name or title of a patent holder |