CN107131234B - Brake built-in rotary table and its brake control method - Google Patents
Brake built-in rotary table and its brake control method Download PDFInfo
- Publication number
- CN107131234B CN107131234B CN201710362415.7A CN201710362415A CN107131234B CN 107131234 B CN107131234 B CN 107131234B CN 201710362415 A CN201710362415 A CN 201710362415A CN 107131234 B CN107131234 B CN 107131234B
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- Prior art keywords
- brake
- piston
- ringfeder
- axis
- expansion type
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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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
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/28—Means for securing sliding members in any desired position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
- F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Brake built-in rotary table and its brake control method, including shell, shell is provided with rotary part and water brake component, it is fixed on the right side of water brake component and shell, rotary part includes the rotor being fixed in torque motor stator, brake axis is coaxially fixed in rotor, water brake assembly set is set to the periphery of brake axis, including piston, internal expansion type brake ringfeder and hydraulic cylinder, piston is set in hydraulic cylinder and carries out hydraulic packing by sealing ring between hydraulic cylinder, internal expansion type brake ringfeder and hydraulic cylinder are fixed and are arranged between brake axis and hydraulic cylinder, the off-load oil circuit for opening up the brake circuit being passed through on the right side of piston in hydraulic cylinder and being passed through on the left of piston, brake circuit is connected to the oil guide pipe of external control fuel tank respectively with off-load oil circuit, fuel tank, which is controlled, by outside controls piston hydraulic Axial movement in cylinder body, piston move axially to the left, and are pressed on internal expansion type brake ringfeder on brake axis.
Description
Technical field
The present invention relates to a kind of built-in rotary table of brake and its brake control methods, belong to machine tool accessories field.
Background technique
Rotary table is the core component of a variety of lathes such as vertical lathe, milling machine, machining center, digital control gear shaper, is returned
Life of the element relationships such as kinematic accuracy, bearing capacity, the ability of reply impact force of revolving worktable to whole lathe
Working ability and efficiency are produced, existing rotary table is to improve precision generally to use torque motor driving mechanism cooperation deceleration dress
The mode set drives rotary table to rotate, and the turntable directly driven using torque motor, when being connected to halt instruction, by
Dynamic brake circuit carrys out braking motor, and self-lock force is smaller, especially emergency stop when can occur very little angle mistake turn, thus return
A set of arrestment mechanism is needed in revolving worktable to clamp turntable to guarantee accurate positioning requirements.In addition under gravity chip,
Braking turntable axis is also required to guarantee the machining accuracy of its workpiece.
The related patents of rotary table with arrestment mechanism:
205559648 U of CN, discloses a kind of friction hydraulic brake, comprising: the platform being connect with main shaft by spline
The fixing sleeve of scalariform；The butterfly spring of endface between the both ends of fixing sleeve is set；Cylinder barrel slides and piston is fixed at
Surely the oil cylinder on low order guide end covered, wherein the outer end of piston is extended in the outer end of cylinder barrel, and is provided on the outer end of cylinder barrel
Friction plate；On the main shaft that cylinder barrel outer end is arranged in of sliding and main shaft is arranged in the friction cover of synchronous rotation, a nut
On threaded portion and it is tightened in the outer end of friction cover, so that the pressing force that butterfly spring and friction cover act on cylinder barrel compresses friction cover
On friction plate, and when oil cylinder oil inlet, cylinder barrel overcomes the pressing force of butterfly spring to separate friction plate and friction cover.
105583640 A of CN discloses a kind of revolving support carrying straight-tooth transmission rotary table, including pedestal, revolution
Support, main shaft self-aligning system, workbench, straight-tooth transmission and backlash eliminating equipment, servo motor, brake apparatus, the supporting mechanism are adopted
It is carried with rotary table, the rotary table precision controlling is by rotary table and the system combined control of main shaft self-aligning, institute
Driving device is stated using straight-tooth anti-backlash mechanism, the braking system is braked using hydraulic braking circle.
104723122 A of CN discloses a kind of brake apparatus of building-block machine rotary table, including rotary shaft, fixation
Support, braking flange and the hydraulic cylinder being made of oil cylinder seat, oil cylinder piston and gland, the flange end for braking flange are sandwiched in oil
Between the cylinder piston and the end face of oil cylinder seat, and there are minim gap, the oil pockets of hydraulic cylinder for the two sides of braking flange flange end
External hydraulic oil pump.
Above in the prior art, arrestment mechanism realizes system by hydraulic or elastic compression rotation axis to generate braking moment
Dynamic function, and the braking reliability of its arrestment mechanism and stability need to be improved, the reasonable structure with rotary part assembling
It need to be improved.
Summary of the invention
The built-in rotary table of brake provided by the invention and its brake control method, water brake component are set to back
Inside revolving worktable, with rotary part efficient combination, braking reliability is high, and stability is strong.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: brake built-in rotary table, including shell,
Shell is provided with rotatable rotary part and water brake component, fixed, rotary part on the right side of water brake component and shell
Including the rotor being fixed in torque motor stator, it is characterised in that brake axis is coaxially fixed in the rotor, it is hydraulic
Brake assemblies are sheathed on the periphery of brake axis, including piston, the internal expansion type being set on the left of piston brake ringfeder and and shell
The fixed hydraulic cylinder of body, piston are set in hydraulic cylinder and carry out hydraulic packing by sealing ring between hydraulic cylinder,
Internal expansion type brake ringfeder and hydraulic cylinder are fixed and are arranged between brake axis and hydraulic cylinder, open up in hydraulic cylinder logical
The off-load oil circuit for entering the brake circuit on the right side of piston and being passed through on the left of piston, brake circuit and off-load oil circuit are controlled with outside respectively
The oil guide pipe of fuel tank is connected to, and controls axial movement of the piston in hydraulic cylinder by the external fuel tank that controls, piston along axial direction to
It moves left, is pressed on internal expansion type brake ringfeder on brake axis.
Preferably, the hydraulic cylinder includes water brake housing and the hydraulic mount fixed with water brake housing,
The water brake housing is covered on internal expansion type brake ringfeder and is fixed with internal expansion type brake ringfeder, and hydraulic mount, which covers, to brake
It is not contacted on brake axle and with brake axis, the right side that is fixed on the right side of hydraulic mount and shell and being located at internal expansion type brake ringfeder
Side, piston pass through sealing ring between water brake housing and hydraulic mount, and with water brake housing and hydraulic mount
Sealing, brake circuit and off-load oil circuit are provided on hydraulic mount.
Preferably, the hydraulic mount is made of left side end cap and hydraulic right side support, and left side end cap is placed on brake system
On moving axis, hydraulic right side support is also placed on brake axis and is fixed on the right side of left side end cap, hydraulic right side support and liquid
Pressure brake housing is fixed and is fixed on the right side of shell, is formed between water brake housing, left side end cap and hydraulic right side support
Cavity, piston are placed in the cavity, and move axially to the left can be with left side end cap against along axially to the right for piston
Can with hydraulic right side support against.
Preferably, the inner wall of the piston right end fixed friction conical ring, the friction conical ring is taper and internal expansion type
The ringfeder outer wall that brakes forms taper-face contact, and piston moves axially to the left, and pushes friction conical ring to move axially to the left, by internal expanding
Formula brake ringfeder is pressed on brake axis.
Preferably, internal expansion type brake ringfeder left end is fixed with water brake housing, internal expansion type brake ringfeder inner wall
Left end and right end contacted with brake axis, and interlude raises upward and does not contact with brake axis, and rub conical ring edge
It is axially moved to the left, internal expansion type brake ringfeder inner wall and the contact area of brake axis are gradually increased, internal expansion type brake ringfeder
The compaction pressure of brake axis is gradually increased, until brake axis stops operating.
Preferably, the friction conical ring is set between water brake housing and internal expansion type brake ringfeder, and cone of friction
The outer wall of ring is contacted with water brake housing.
Preferably, the left end of internal expansion type brake ringfeder has the flange axially aligned with cone of friction ring, described
Friction conical ring is moved axially to the left to when maximum displacement, and friction conical ring is contacted with flange.
Preferably, it is fixed with end cap on the right side of the shell, brake circuit diverter pins and off-load oil is respectively provided on end cap
Road diverter pins, the brake circuit diverter pins are docked with brake circuit sealing, and off-load oil circuit diverter pins and off-load oil circuit seal
Docking, and the oil guide pipe of brake circuit diverter pins and off-load oil circuit diverter pins respectively with external control fuel tank is connected, brake circuit
Diverter pins and off-load oil circuit diverter pins pass through diverter pins pressing plate on end cap respectively, and diverter pins pressing plate is fixed on end cap.
Preferably, two are filled on the end cap an Oil Guide connectors docked with the oil guide pipe of external control fuel tank, and one
Oil Guide connector and brake circuit diverter pins are connected, another Oil Guide connector and off-load oil circuit diverter pins are connected, and Oil Guide connector with
Threaded hole on end cap, which is threadedly engaged, to be mounted on end cap.
The brake control method of the above-described built-in rotary table of brake:
When control fuel tank control oil liquid in outside is input in hydraulic cylinder by brake circuit, piston is moved axially to the left,
It is pressed on internal expansion type brake ringfeder on brake axis, brake axis is braked, rotary part is made to stop operating；
When control fuel tank control oil liquid in outside is input in hydraulic cylinder by off-load oil circuit, promotion piston moves right along axial direction
It is dynamic, it is back to the oil liquid on the right side of piston in external control fuel tank along brake circuit, unclamps the compression to internal expansion type brake ringfeder,
Release the braking to brake axis.
The working principle of the built-in rotary table of brake of the invention is:
When rotation, rotary part rotation, water brake component and housing stationary are motionless.
When braking, outside control fuel tank inputs oil liquid into hydraulic cylinder by brake circuit, push piston along axial direction to
It moves left, is pressed on internal expansion type brake ringfeder on brake axis, pressing force of the internal expansion type brake ringfeder to brake axis
The frictional force acted on brake axis is converted to, brake axis is braked, rotary part is made to stop operating；
When off-load, outside control fuel tank inputs oil liquid into hydraulic cylinder by off-load oil circuit, push piston along axial direction to
Right return, the oil liquid on the right side of piston are back in external control fuel tank along brake circuit, unclamp internal expansion type brake ringfeder to brake
The frictional force of the compression of vehicle brake axle, internal expansion type brake ringfeder and brake between centers is gradually reduced, and is released to brake axis
Braking, rotary part can restore to rotate.
The present invention has the advantages that
1, water brake component is set to inside revolution work department, and is fixed with shell, guarantees the rotation of rotary part not
Water brake component is formed and is interfered, brake axis is fixed in rotary part, by the braking to brake axis, is realized
Braking to rotary part makes rotary part and water brake component efficient combination.
2, off-load oil circuit and brake circuit are opened up in hydraulic cylinder, and piston axial movement is pushed by oil liquid pressure, from
And it is pressed on internal expansion type brake ringfeder on brake axis, hydraulic braking moment is big, and braking reliability is high and stability is strong.
3, piston is mobile is pressed on internal expansion type brake ringfeder on brake axis, and the axial compressive force square of piston is converted
Axial compressive force for the radial braking force square of internal expansion type brake ringfeder, piston will not be transmitted to revolution by internal expansion type brake ringfeder
On the precision bearing of workbench, additional load will not be increased to the revolution of precision bearing.
4, internal expansion type brake ringfeder has elasticity, is pressed on brake axis, can produce in the circumferential direction of brake axis
Uniform radial braking force square, when guaranteeing braking, the precision and stability of rotary table is unaffected.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the built-in rotary table of brake in specific embodiment.
Fig. 2 is broken section of the built-in rotary table of brake in specific embodiment along brake circuit position
Figure.
Fig. 3 is broken section of the built-in rotary table of brake in specific embodiment along off-load oil circuit position
Figure.
Fig. 4 is broken section of the built-in rotary table of brake in specific embodiment along Oil Guide connector position
Figure.
Specific embodiment
It elaborates below with reference to Fig. 1 to Fig. 4 to the embodiment of the present invention.
Brake built-in rotary table, including shell 1, and shell 1 is provided with rotatable rotary part 4 and water brake
Fixed on the right side of component 52, water brake component 52 and shell 1, rotary part 4 includes being fixed in torque motor stator 41 to turn
Son 42, it is characterised in that brake axis 51 is coaxially fixed in the rotor 42, water brake component 52 is sheathed on brake system
The periphery of moving axis 51 including piston 52.1, is set to the internal expansion type brake ringfeder 52.2 in 52.1 left side of piston and fixes with shell 1
Hydraulic cylinder 52.3, piston 52.1 be set in hydraulic cylinder 52.3 and between hydraulic cylinder 52.3 by sealing ring carry out
Hydraulic packing, internal expansion type brake ringfeder 52.2 and hydraulic cylinder 52.3 are fixed and brake axis 51 and hydraulic cylinder are arranged in
Between 52.3, the brake circuit A for being passed through 52.11 right side of piston is opened up in hydraulic cylinder 52.3 and is passed through unloading for 52.1 left side of piston
Lotus oil circuit B, brake circuit A are connected to the oil guide pipe of external control fuel tank respectively with off-load oil circuit B, control fuel tank control by outside
Axial movement of the piston 52.1 processed in hydraulic cylinder 52.3, piston 52.1 move axially to the left, and make internal expansion type brake ringfeder
52.2 are pressed on brake axis 51.
It can be seen in the drawings that internal expansion type brake ringfeder 52.2 and hydraulic cylinder 52.3 are fixed, hydraulic cylinder 52.3 with
Shell 1 is fixed, and internal expansion type brake ringfeder 52.2 can be effectively prevent to rotate with the rotation of brake axis 51, guarantee that internal expansion type is stopped
Vehicle ringfeder 52.2 only moves axially, and does not circumferentially rotate.Brake circuit A and off-load oil circuit B are provided in hydraulic cylinder 52.3, when
When rotary part normally rotates, water brake component 52 and shell 11 are stationary, brake circuit A and off-load oil circuit B not into
Oil controls fuel tank by outside and inputs oil liquid into brake circuit A, oil liquid enters piston 52.1 when needing to brake for the first time
Right side, piston 52.1 move axially to the left in hydraulic cylinder 52.3 in the horizontal direction under the promotion of oil liquid, make internal expansion type
Brake ringfeder 52.2 is pressed on brake axis 51, to be gradually increased internal expansion type brake ringfeder 52.2 and brake axis 51
Between frictional force, brake axis 51 is braked, so that rotary part 2 be made to stop operating, realizes the system in rotary course
Dynamic, when needing to restore rotation, outside control fuel tank inputs oil liquid to off-load oil circuit B, and oil liquid enters the left side of piston 52.1, with
The increase of oil liquid amount on the left of piston, push piston 52.1 to move back to the right, with the return of piston 52.1,52.1 right side of piston
Oil liquid is back in external control oil circuit along brake circuit A, and piston 52.1 moves back, and makes the internal expansion type brake release pair of ringfeder 52.2
Brake axis 51 compresses, and internal expansion type brake ringfeder 52.2 and the frictional force of brake axis 51 are gradually reduced, and releases to brake
The braking of brake axle.It should be noted that when braking again, with moving axially to the left for piston 52.1, piston left side
Oil liquid also will be mobile with piston 52.1 and be back in external control oil circuit along off-load oil circuit B.
Wherein, the hydraulic cylinder 52.3 includes water brake housing 52.31 and fixes with water brake housing 52.31
Hydraulic mount 52.32,52.31 sets of the water brake housing are braked on internal expansion type brake ringfeder 52.2 and with internal expansion type
Ringfeder 52.2 is fixed, and 52.31 sets of hydraulic mount do not contact on brake axis 51 and with brake axis 51, hydraulic mount
52.32 are located at water brake housing with right side fixed on the right side of shell 1 and positioned at internal expansion type brake ringfeder 52.2, piston 52.1
Between 52.31 and hydraulic mount 52.32, and it is close by sealing ring with water brake housing 52.31 and hydraulic mount 52.32
Envelope, brake circuit A and off-load oil circuit B are provided on hydraulic mount 52.32.As can be seen that hydraulic mount in Fig. 2 and Fig. 3
52.32 do not contact with brake axis 51, prevent hydraulic mount 52.32 when brake axis 51 rotates, friction is generated to it.
One is formd between water brake housing 52.31 and hydraulic mount 52.32 for accommodating the seal cavity of piston 52.1, piston
52.1 are placed in seal cavity, and so that 52.1 left and right sides oil liquid of piston is not circulated by sealing ring, when oil liquid enters piston
When 52.1 right side, piston 52.1 moves right to moving to left.The effect of water brake housing 52.31 and hydraulic mount 52.32
It is to form the cavity mobile for piston 52.1 and guiding and positioning function is risen to the movement of piston 52.1.
Specifically, the hydraulic mount 52.32 is made of left side end cap 52.33 and hydraulic right side support 52.34, left side
End cap 52.33 is placed on brake axis 51, and hydraulic right side support 52.34 is also placed on brake axis 51 and is fixed on left side
The right side of end cap 52.33, hydraulic right side support 52.34 is fixed with water brake housing 52.31 and fixes on the right side of shell 1,
Cavity C is formed between water brake housing 52.31, left side end cap 52.33 and hydraulic right side support 52.34, piston 52.1 is placed in
In the cavity C, and move axially to the left can be with left side end cap 52.33 against along axially to the right may be used for piston 52.1
With hydraulic right side support 52.34 against.
As can be seen that piston 52.1 is placed in cavity C from Fig. 2 and Fig. 3, and piston 52.1 and left side end cap 52.33 and
It is sealed with sealing ring between right side hydraulic mount 52.34, prevents oil liquid from circulating in cavity C through piston 52.1, when braking,
Piston 52.1 claims dynamic to the left in cavity C, and when off-load, piston 52.1 is moved back to the right in cavity C along axial direction, and piston 52.1 moves to left
It can be with left side end cap 52.33 against limit to moving to left for piston 52.1, moving to right can be with hydraulic right side support 52.34
Against being limited to moving to right for piston 52.1, that is, prevent oil liquid from excessively entering in cavity C, it is super to be also prevented from the displacement of piston 52.1
It limits and interference is formed to other inner bodies of revolving platform.
Wherein, the inner wall of the 52.1 right end fixed friction conical ring 52.4 of piston, the friction conical ring 52.4 is cone
Shape and internal expansion type brake 52.2 outer wall of ringfeder form taper-face contact, and piston 52.1 moves axially to the left, and pushes friction conical ring
52.4 move axially to the left, and internal expansion type brake ringfeder 52.2 is pressed on brake axis 51.Before braking, rub conical ring
52.4 contact with the outer wall right end of internal expansion type brake ringfeder 52.2, with moving to left for piston 52.1 because friction conical ring 52.4 with
Internal expansion type brake ringfeder 52.2 is taper-face contact, and friction conical ring 52.4 also increases the pressing force of internal expansion type brake ringfeder 52.2 therewith
Greatly, it is gradually increased internal expansion type brake ringfeder 52.2 to the pressing force of brake axis 51, internal expansion type brake ringfeder 52.2 and brake
Frictional force between vehicle brake axle 51 is gradually increased therewith, until brake axis 51 stops operating.A left side for friction conical ring 52.4
It moves and ringfeder is clamped between friction conical ring 52.4 and brake axis 51, play the role of brake.
Specifically, internal expansion type brake 52.2 left end of ringfeder and water brake housing 52.31 are fixed, internal expansion type brake
The left end of 52.2 inner wall of ringfeder and right end are contacted with brake axis 51, and interlude raise upward not with brake axis 51
Contact, friction conical ring 52.4 move axially to the left, the contact surface of internal expansion type brake ringfeder 52.2 inner wall and brake axis 51
Product is gradually increased, and internal expansion type brake ringfeder 52.2 gradually increases the compaction pressure of brake axis 51, until brake axis
51 stop operating.Increase since contact area is synchronous with compaction pressure, internal expansion type brake ringfeder 52.2 and brake axis
Frictional force between 51 will quickly increase when rubbing conical ring 52.4 to the left, further increase the reliability and stability of braking.
Specifically, the friction conical ring 52.4 is set to water brake housing 52.31 and internal expansion type brake ringfeder 52.2
Between, and the outer wall for the conical ring 52.4 that rubs is contacted with water brake housing 52.31.Pass through water brake housing 52.31 and friction
The contact of conical ring 52.4 is oriented to the movement of friction conical ring 52.4, and when guaranteeing braking, internal expansion type brake ringfeder 52.2 is firm
Jail is pressed on brake axis 51.
Specifically, the left end of the internal expansion type brake ringfeder 52.2 has the flange axially aligned with friction conical ring 52.4
52.21, the friction conical ring 52.4 is moved axially to the left to when maximum displacement, and friction conical ring 52.4 connects with flange 52.21
Touching.It is contacted with friction conical ring 52.4 with the soft of flange 52.1, prevents friction conical ring 52.4 when moving to left, collide or connect firmly
Touching, when reducing braking, the abnormal sound of the inside of revolving platform and vibration further increase the reliability and stability of braking.
Wherein, it is fixed with end cap 3 on the right side of the shell 1, brake circuit diverter pins 31 are respectively provided on end cap 3 and unloaded
Lotus oil circuit diverter pins 32, the brake circuit diverter pins 31 and brake circuit A sealing are docked, off-load oil circuit diverter pins 32 with unload
Lotus oil circuit B sealing docking, and brake circuit diverter pins 31 and off-load oil circuit diverter pins 32 control the Oil Guide of fuel tank with outside respectively
Pipe is connected, and brake circuit diverter pins 31 and off-load oil circuit diverter pins 32 are respectively by diverter pins pressing plate 33 on end cap 3, water conservancy diversion
Pin pressing plate 33 is fixed on end cap 3.Oil liquid is input in brake circuit A and off-load oil circuit B respectively by diverter pins 31, with leading
Stream pin 31 effectively prevent oil liquid leakage and docks with outside control fuel tank.
Specifically, two Oil Guide connectors 34 for having the oil guide pipe for controlling fuel tank with outside to dock are filled on the end cap 3, one
A Oil Guide connector 34 is connected with brake circuit diverter pins 31, another Oil Guide connector 34 and off-load oil circuit diverter pins 32 are connected, and
Threaded hole on Oil Guide connector 34 and end cap 3, which is threadedly engaged, to be mounted on end cap 3.Oil Guide connector 34 can be replaced, and replacement is passed through
The Oil Guide connector 34 of different inner diameters can control the input pressure of oil liquid, adjust the retro-speed of rotary part.
The present invention also protects the brake control method of the above-described built-in rotary table of brake:
When control fuel tank control oil liquid in outside is input in hydraulic cylinder 52.3 by brake circuit A, piston 52.1 is along axial direction
It is moved to the left, is pressed on internal expansion type brake ringfeder 52.2 on brake axis 51, brake axis 51 is braked, makes to revolve
Rotation member 4 stops operating；
When outside, control fuel tank controls oil liquid and is input in hydraulic cylinder 52.3 by off-load oil circuit B, pushes 52.1 edge of piston
Axially to the right, it is back to the oil liquid on 52.1 right side of piston in external control fuel tank along brake circuit A, unclamps to internal expansion type
The compression of brake ringfeder 52.2, releases the braking to brake axis 51.
By above-mentioned brake control method, as long as the oil liquid input of the external control fuel tank of operation can effectively control rotation
The braking of component and the recovery rotation after braking, the reliability and stability of control for brake are higher.
It is completely described in conjunction with technical solution of the attached drawing to the embodiment of the present invention above, it should be noted that described
Embodiment be only a part of the embodiments of the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
Claims (10)
1. brake built-in rotary table, including shell (1), shell (1) is provided with rotatable rotary part (4) and hydraulic
Brake assemblies (52), water brake component (52) and shell (1) right side are fixed, and rotary part (4) includes being fixed on torque motor
Rotor (42) in stator, it is characterised in that coaxially fix brake axis (51) in the rotor (42), water brake group
Part (52) is sheathed on the periphery of brake axis (51), including piston (52.1), the internal expansion type being set on the left of piston (52.1)
It brakes ringfeder (52.2) and the hydraulic cylinder (52.3) fixed with shell (1), piston (52.1) is set to hydraulic cylinder (52.3)
In and pass through between hydraulic cylinder (52.3) sealing ring and carry out hydraulic packing, internal expansion type brakes ringfeder (52.2) and hydraulic cylinder
(52.3) it fixes and is arranged between brake axis (51) and hydraulic cylinder (52.3), open up and be passed through in hydraulic cylinder (52.3)
Brake circuit (A) on the right side of piston (52.11) and the off-load oil circuit (B) being passed through on the left of piston (52.1), brake circuit (A) with unload
Lotus oil circuit (B) is connected to the oil guide pipe of external control fuel tank respectively, controls fuel tank control piston (52.1) hydraulic by outside
Axial movement in cylinder body (52.3), piston (52.1) move axially to the left, and are pressed on internal expansion type brake ringfeder (52.2)
On brake axis (51).
2. the built-in rotary table of brake according to claim 1, it is characterised in that the hydraulic cylinder (52.3)
Including water brake housing (52.31) and the hydraulic mount (52.32) fixed with water brake housing (52.31), the liquid
Pressure brake housing (52.31) is covered in internal expansion type brake ringfeder (52.2) and is fixed with internal expansion type brake ringfeder (52.2), hydraulic
Support (52.31) is covered on brake axis (51) and is not contacted with brake axis (51), hydraulic mount (52.32) and shell
(1) right side is fixed and is located at the right side of internal expansion type brake ringfeder (52.2), and piston (52.1) is located at water brake housing (52.31)
It is close by sealing ring between hydraulic mount (52.32), and with water brake housing (52.31) and hydraulic mount (52.32)
Envelope, brake circuit (A) and off-load oil circuit (B) are provided on hydraulic mount (52.32).
3. the built-in rotary table of brake according to claim 2, it is characterised in that the hydraulic mount (52.32)
It is made of left side end cap (52.33) and hydraulic right side support (52.34), left side end cap (52.33) is placed on brake axis (51)
On, hydraulic right side support (52.34) is also placed on brake axis (51) and is fixed on the right side of left side end cap (52.33), liquid
Pressure right side support (52.34) and water brake housing (52.31) is fixed and fixed with shell (1) right side, in water brake housing
(52.31), cavity (C) is formed between left side end cap (52.33) and hydraulic right side support (52.34), piston (52.1) is placed in institute
In the cavity (C) stated, and move axially to the left can be with left side end cap (52.33) against moving right along axial direction for piston (52.1)
It is dynamic can with hydraulic right side support (52.34) against.
4. the built-in rotary table of brake according to claim 2, it is characterised in that described piston (52.1) right end
Fixed friction conical ring (52.4), the inner wall of the friction conical ring (52.4) are taper and internal expansion type brake ringfeder (52.2) outer wall
Taper-face contact is formed, piston (52.1) moves axially to the left, and pushes friction conical ring (52.4) to move axially to the left, by internal expanding
Formula brake ringfeder (52.2) is pressed on brake axis (51).
5. the built-in rotary table of brake according to claim 4, it is characterised in that the internal expansion type brake ringfeder
(52.2) left end and water brake housing (52.31) are fixed, internal expansion type brake ringfeder (52.2) inner wall left end and right end with
Brake axis (51) contact, and interlude raises upward and does not contact with brake axis (51), rubs conical ring (52.4) along axis
To being moved to the left, internal expansion type brake ringfeder (52.2) inner wall and the contact area of brake axis (51) are gradually increased, internal expansion type
Brake ringfeder (52.2) gradually increases the compaction pressure of brake axis (51), until brake axis (51) stop operating.
6. the built-in rotary table of brake according to claim 5, it is characterised in that the friction conical ring (52.4)
Be set to water brake housing (52.31) and internal expansion type brake ringfeder (52.2) between, and rub conical ring (52.4) outer wall with
Water brake housing (52.31) contact.
7. the built-in rotary table of brake according to claim 6, it is characterised in that the internal expansion type brake ringfeder
(52.2) left end has the flange (52.21) axially aligned with friction conical ring (52.4), described friction conical ring (52.4) edge
When being axially moved to the left maximum displacement, friction conical ring (52.4) is contacted with flange (52.21).
8. the built-in rotary table of brake according to claim 1, it is characterised in that fixed on the right side of the shell (1)
Have end cap (3), brake circuit diverter pins (31) and off-load oil circuit diverter pins (32), the braking are respectively provided on end cap (3)
Oil circuit diverter pins (31) are docked with brake circuit (A) sealing, and off-load oil circuit diverter pins (32) are docked with off-load oil circuit (B) sealing,
And the oil guide pipe of brake circuit diverter pins (31) and off-load oil circuit diverter pins (32) respectively with external control fuel tank is connected, brake oil
Road diverter pins (31) and off-load oil circuit diverter pins (32) are respectively by diverter pins pressing plate (33) on end cap (3), diverter pins pressure
Plate (33) is fixed on end cap (3).
9. the built-in rotary table of brake according to claim 8, it is characterised in that fill two on the end cap (3)
There are the Oil Guide connector (34) docked with the oil guide pipe of external control fuel tank, an Oil Guide connector (34) and brake circuit diverter pins
(31) it connects, another Oil Guide connector (34) and off-load oil circuit diverter pins (32) are connected, and on Oil Guide connector (34) and end cap (3)
Threaded hole be threadedly engaged and be mounted on end cap (3).
10. the brake control method of the described in any item built-in rotary tables of brake of claim 1 to 9:
When control fuel tank control oil liquid in outside is input in hydraulic cylinder (52.3) by brake circuit (A), piston (52.1) is along axis
It to being moved to the left, is pressed on internal expansion type brake ringfeder (52.2) on brake axis (51), brake axis (51) is carried out
Braking, makes rotary part (4) stop operating；
When outside, control fuel tank controls oil liquid and is input in hydraulic cylinder (52.3) by off-load oil circuit (B), pushes piston (52.1)
It is back in external control fuel tank along the oil liquid axially to the right, made on the right side of piston (52.1) along brake circuit (A), release pair
The compression of internal expansion type brake ringfeder (52.2) releases the braking to brake axis (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362415.7A CN107131234B (en) | 2017-05-22 | 2017-05-22 | Brake built-in rotary table and its brake control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710362415.7A CN107131234B (en) | 2017-05-22 | 2017-05-22 | Brake built-in rotary table and its brake control method |
Publications (2)
| Publication Number | Publication Date |
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| CN107131234A CN107131234A (en) | 2017-09-05 |
| CN107131234B true CN107131234B (en) | 2018-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710362415.7A Expired - Fee Related CN107131234B (en) | 2017-05-22 | 2017-05-22 | Brake built-in rotary table and its brake control method |
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| CN (1) | CN107131234B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108381205A (en) * | 2018-05-17 | 2018-08-10 | 深圳市湘聚实业有限公司 | A kind of preposition external encircling type axial direction brake rotary table |
| CN108857473B (en) * | 2018-07-25 | 2024-05-28 | 科益展智能装备有限公司 | Piston cylinder assembly and machining platform |
| CN110217672A (en) * | 2019-05-31 | 2019-09-10 | 佛山市顺德区金泰德胜电机有限公司 | Traction machine |
| CN113857881A (en) * | 2020-06-30 | 2021-12-31 | 深圳市湘聚实业有限公司 | Radial braking horizontal direct-drive numerical control rotary table |
| TWI777710B (en) * | 2021-07-30 | 2022-09-11 | 上銀科技股份有限公司 | Normally closed brake device and rotary table using the same |
| US11953063B2 (en) | 2021-08-31 | 2024-04-09 | Hiwin Technologies Corp. | Normally closed disc clamp system and rotary table using the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006029942A1 (en) * | 2006-01-12 | 2007-08-02 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Self-energizing disc brake with electromechanical actuator |
| CN104647055A (en) * | 2014-01-26 | 2015-05-27 | 柳州正菱重型数控机床有限公司 | Rotating shaft float locking device for rotating table |
| CN104613110B (en) * | 2015-01-20 | 2017-04-12 | 上海庞丰交通设备科技有限公司 | Brake clamp oil cylinder |
| CN204784329U (en) * | 2015-05-26 | 2015-11-18 | 江苏新瑞重工科技有限公司 | Revolving stage end face contaction formula brake structure |
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2017
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| CN107131234A (en) | 2017-09-05 |
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