CN106794563B - The clamping unit and chuck unit of clamping device - Google Patents
The clamping unit and chuck unit of clamping device Download PDFInfo
- Publication number
- CN106794563B CN106794563B CN201580049706.XA CN201580049706A CN106794563B CN 106794563 B CN106794563 B CN 106794563B CN 201580049706 A CN201580049706 A CN 201580049706A CN 106794563 B CN106794563 B CN 106794563B
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- Prior art keywords
- clamping
- chuck
- unit
- hydraulic
- valve
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/06—Arrangements for positively actuating jaws
- B25B5/061—Arrangements for positively actuating jaws with fluid drive
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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
- B23Q1/0009—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts
- B23Q1/0018—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means
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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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/16—Details, e.g. jaws, jaw attachments
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention relates to a kind of clamping device (10), it is made of the clamping unit (11) and the chuck unit (12) that thus can mechanically and fluidly be connected of mechanical side.Chuck unit (12) has the existing clamping cylinder (20) for moving clamping clip (19), one working chamber (23) is fluidly connected via the first clamping cylinder pipeline (30) with the first chuck connection part (28) and its another working chamber (24) fluidly connects via the second clamping cylinder pipeline (31) and the second chuck connection part (29).In two clamping cylinder pipelines (30,31) there is the check-valves (36,37) that can be unlocked in respectively, when hydraulic medium should be exported from associated working chamber (23) or (24), it unlocks check-valves (36,37).In the case where foundation fluidly connects between chuck unit (12) and clamping unit (11), two clamping cylinder pipelines (30,31) fluidly connect with associated fluid pressure line (70) or (71) respectively.Each fluid pressure line (70,71) be associated with can independent operation and changeable work valve gear (68,69).Only when two work valve gears (68,69) are switched in the switching position (Z) or (R) of restriction via control unit (66) from neutral position N, the movement of clamping clip (19) is just realized.
Description
Technical field
The present invention relates to a kind of clamping unit, the chuck unit that can fluidly and be mechanically connected with clamping unit, by
The clamp or release movement of the clamping device and the clamping clip for implementing chuck unit of clamping unit and chuck unit composition
Method.
Background technique
In some applications for workpieces processing, Workpiece clamping into chuck unit and for example is being used to process
Prepare workpiece at assembly space.Here, the clamping unit of chuck unit and assembly space fluidly and it is mechanically connected connect, so as to
Move the clamping clip of chuck unit and in internal or external clamping workpiece.After chuck unit is separated with clamping unit,
Chuck unit also keeps clamping force.Workpiece can be transported to processing equipment from assembly space in clamped state as a result, and
And it is connected again with the clamping unit of processing equipment here.After the process, can by workpiece together with chuck unit again from adding
It is transported out in work machinery, for example, being transmitted back to assembly space or being delivered to subsequent processing equipment.By assembly space or add
The corresponding clamping unit of work machinery realizes, clamp or release workpiece and changes clamping force.Clamping unit is processing machine as a result,
A part of tool or assembly space.Clamping unit may be disposed to can be relative to the rack of processing equipment or assembly space at least one
The freedom degree movement or static of a translation.Via turntable, the freedom degree that furthermore can make clamping unit to rotate is moved.
Such as the clamping device of clamping unit and chuck unit is had as known to 20 2,006 014 097 U1 of document DE.
It is described herein, for it is inside and outside clamp workpiece hydraulic clamp have in chuck unit can be manual
Switching valve could dictate that the clamping clip movement for internal or external clamping using the switching valve.It is had in addition, chuck unit has
The clamping cylinder of two working chambers, wherein connection has clamping cylinder pipeline at each working chamber.The piston rod of clamping cylinder is mechanically
It is coupled with the movement of the clamping clip of chuck unit, to cause the corresponding sports of clamping clip by the movement of piston rod.It is establishing
In the case where the fluidly connecting of chuck unit and clamping unit, when the movement of clamping clip should be caused, via the work of clamping unit
Make valve gear hydraulic medium is transported in a working chamber and is exported from another working chamber.For this purpose, work valve gear and two
A clamping cylinder pipeline fluid connection.
By means of this hydraulic clamp, very big workpiece of the total weight up to about 4 tons can be clamped.In the processing phase
Between, the workpiece can be made until the revolving speed of 1000 revolutions per minute rotates.So big quality is set to accelerate and move to need during processing
Want the safety of top.Workpiece unintentionally loosening or unclamping in chuck unit can cause great at processing equipment
It damages and is very big danger for operator.
Summary of the invention
Therefore can be considered as the object of the present invention is to more reliably design known chuck device.
The purpose passes through the folder of the feature with claim 14 by the clamping unit of the feature with claim 1
The method of disk unit and the feature with claim 19 is realized.
Clamping unit according to the present invention may be present at assembly space or processing equipment.Clamping unit has connection dress
It sets, is set for, mechanically and be hydraulically connected with independent chuck unit.It can manipulate and couple via clamping unit
Chuck unit, so that Workpiece clamping can be unclamped into chuck unit or from chuck unit or changeable clamping force.
In order to clamp workpiece, chuck unit has the clamping clip movably supported.Clamping clip mechanically with hydraulic folder
The movable piston motion of tight cylinder is coupled.Here, the movement, which is coupled, can arbitrarily realize and provide when necessary adding for piston motion
Speed is slowed down.The second work that cylinder inner cavity is divided into the first working chamber and separated with the first working chamber fluid by the piston of clamping cylinder
Chamber.First working chamber is connect with the first clamping cylinder hydraulic pressure of pipe line and the second working chamber is connect with the second clamping cylinder hydraulic pressure of pipe line.
The invention further relates to the clamping devices of such chuck unit of the with good grounds clamping unit of the invention of a belt.
The attachment device of clamping unit has for connecting with the first clamping cylinder pipeline fluid first hydraulic work connection
Socket part and the second hydraulic work connection part for fluidly connecting the second clamping cylinder pipeline.First operating valve of clamping unit fills
It sets with output section, is connected by means of the first fluid pressure line with the first work connection part.Therefore, via the first fluid pressure line
Hydraulic medium can be transported in the first working chamber with the first work connection part or export it from the first working chamber.Accordingly
Ground, there are the second work valve gear, output section is connected by means of the second fluid pressure line with the second work connection part, so as to
Hydraulic medium is transported in the second working chamber or is exported from the second working chamber.Two work valve gears can be independently of each other
It is switched at least two switching positions, flows into position and backwash deployment.In flowing into position, relevant work valve gear
Output section fluidly connected with feed line, feed line provides the hydraulic medium under the pressure and is connected to operating valve dress
At the input unit set.In backwash deployment, the output section of relevant work valve gear and another input unit stream of work valve gear
Body connection, such as it is directed to storage bin or the return line for hydraulic medium of tank is connected at the input unit.
In order to be switched to two work valve gears in different switching positions, for example, it is settable can electrically-energized valve driving
Portion.The switching of two work valve gears carries out independently of one another, and can for example be drawn by the control device of control valve drive division
It rises.
By the way that two work valve gears that can switch independently of one another are arranged for a fluid pressure line respectively, safety is improved
Property.It thus can realize in particular, only when two work valve gears occupy defined switching position, the implementable clamping clip of ability
Movement.For example, only when a work valve gear is located in inflow position and corresponding another work valve gear is located at reflux
When in position, the movement of the clamping clip of chuck unit is just realized.It is avoided in this way since simple mistake is unintentionally loose
Open or clamp clamping clip or workpiece.Mistake for the work valve gear or an associated valve driving portion of switching as a result,
Effect does not lead to the state for having security risk.
Preferably, two work valve gears are implemented as identical.
Advantageously, the first and/or second work valve gear is respectively provided with work output section and manipulates output section
By-passing valve.The first or second fluid pressure line for working valve gear corresponding with being associated with fluidly connects herein for work output section.
At this it is possible that first and/or second work valve gear be respectively provided be arranged in it is in relevant fluid pressure line,
It can be via the check-valves of manipulation input unit unlock.The manipulation input unit for the check-valves that can be unlocked is associated with work valve gear
The manipulation output section of by-passing valve fluidly connects.In the state of locking, check-valves prevents the hydraulic flow to the direction of by-passing valve,
And allow the hydraulic flow of the relevant work connection part from the work output section of by-passing valve to clamping unit.
In one inflow position in two work valve gears, the manipulation output section of relevant by-passing valve and return pipe
Road fluidly connects.In the backwash deployment of first or second work valve gear, the manipulation output section of by-passing valve can be with feed line
It fluidly connects.Therefore, in backwash deployment, via the bypass associated rebound valve unlocked of valve deblocking, and then only
It realizes and is returned from associated work connection part by hydraulic medium of the work valve gear into the return line for tank
Stream.
Preferably, the second by-passing valve of the first by-passing valve of the first work valve gear and/or the second work valve gear is implemented
At 4/3 by-passing valve.As a result, as the additional of position and backwash deployment is flowed into, with third switching position, it is preferably carried out
At neutral position.In neutral position, according to the manipulation output section of illustratively not only work output section but also by-passing valve and reflux
Pipeline fluid connection.In the neutral position, intangibility locks the correspondingly associated check-valves unlocked, and prevents hydraulic
Medium is flowed into return line by relevant work valve gear.
Preferably, the first by-passing valve and/or the second by-passing valve are mechanically tightened in neutral position in advance.For this purpose, for example may be used
There are one or more spring parts.In one embodiment, neutral position is embodied as flowing between position and backwash deployment
The middle position of by-passing valve.
First by-passing valve and/or the second by-passing valve preferably have there are two the valve driving portion that can be manipulated independently of one another,
In, a valve driving portion flows into position for being switched to by-passing valve from neutral position, and another valve driving portion is for making
By-passing valve is switched in backwash deployment from neutral position.By two independent valve driving portions for making by-passing valve from neutral position
In be switched to and flow into position and backwash deployment, can further improve the safety of clamping unit.It is advantageous that opposite
Direction on carry out two valve driving portions motion switch.
Advantageously, clamping unit has control valve gear.The output section for controlling valve gear can be by means of third hydraulic tube
Road and the controller control portion of attachment device fluidly connect.Control valve gear can control position and resting position between switch and
Preferably mechanically it is tightened in resting position in advance.In control position, controller control portion passes through control valve gear and return pipe
Road fluidly connects.
In one embodiment, control valve gear can have with control output section and manipulate the by-passing valve of output section, wherein
Control output section is fluidly connected with third fluid pressure line.In addition, control valve gear may include the check-valves that can be unlocked, it is arranged in
The hydraulic flow from control output section to by-passing valve is prevented in third fluid pressure line and in the state of locking.It can for unlocking
Manipulation output section of the manipulation input unit of the check-valves of unlock preferably with the by-passing valve of control valve gear fluidly connects.Especially
The manipulation output section on ground, by-passing valve fluidly connects in control position with feed line, and controls output section and return line stream
Body connection.As a result, in control position, hydraulic medium can flow out to return line from controller control portion via control valve gear
In.It can be with the switching positions of two work valve gears independently in the chuck fluidly connected with clamping unit via controller control portion
It carries out temporary pressure in unit to eliminate, this for example can be used for checking pressure sensor signal.
It is also advantageous that clamping unit has solution locking device.The output section for solving locking device can be by means of the 4th liquid
The unlock connection part of pressure pipe road and attachment device fluidly connects.Solution locking device can be cut between unlocking direction and resting position
It changes.In unlocked position, the output section for solving locking device is connected with feed line and/or hydraulic deposit pipeline, wherein liquid
The deposit pipeline of pressure provides hydraulic medium or hydraulic coupling at least identical with feed line.Via unlock connection part, joining
The existing check-valves that can be unlocked herein can be unlocked in the chuck unit connect.Preferably, the liquid from deposit pipeline is used thus
Pressure is greater than the hydraulic coupling in feed line.
Furthermore the attachment device of clamping unit can have pneumatically coupled portion.It pneumatically coupled portion can be via pneumatic line and pneumatic
Pressure source is connectable to be connect or is connected thereto.Pneumatic pressure in pneumatic line can be assessed via pressure sensor.For example,
The chuck unit of connection can make pneumatically coupled in the case where the defined operating status do not allow or non-of the chuck unit
It divulges information (being connect with environment liquid) and status information is transferred to clamping unit in this way in portion.
It is also advantageous that one in clamping unit, multiple or all hydraulic pipeline is connected with pressure sensor respectively
It connects, to determine existing Fluid pressure here.As illustrated, pneumatic line can also be connected with pressure sensor.
In the embodiment of chuck unit according to the present invention, be arranged hookup, in particular with the company of clamping unit
Connection device collective effect, so that clamping unit mechanically and is fluidly linked with chuck unit.Chuck unit has multiple
The clamping clip that can be supported with moving toward each other and away from each other.Internal or external workpiece can be clamped via clamping clip.In order to make
, there is the hydraulic clamping cylinder with the first working chamber and the second working chamber in clamping clip movement.First working chamber and the first clamping cylinder
Pipeline fluid connection, and the second working chamber is connect with the second clamping cylinder pipeline fluid.In each clamping cylinder pipeline, difference cloth
The chuck check-valves that can be unlocked is set, prevents hydraulic medium from flowing out in the state of its locking from relevant working chamber.In order to
Unlock, each chuck check-valves have manipulation input unit.First clamping cylinder pipeline makes the first of the first working chamber and hookup
The chuck portion of being connected to fluidly connects.Correspondingly, the second clamping cylinder pipeline couples the second working chamber with the second chuck of hookup
Portion fluidly connects.The manipulation input unit of first chuck check-valves connects in the first clamping cylinder pipeline with the second chuck connection part fluid
It connects.Similarly, the manipulation input unit of the second chuck check-valves in the second clamping cylinder pipeline with the first chuck connection part stream
Body connection.By with one in two clamping cylinder pipelines of pressure-loaded, being achieved in hydraulic medium using hydraulic medium from another
It is flowed out via corresponding another clamping cylinder pipeline by the chuck check-valves of unlock in one working chamber.If two clamping cylinder pipelines
The position of no pressure, clamping clip is maintained, and can for example maintain the clamped condition of workpiece as a result, even if when chuck unit and folder
When tight unit separates such as loses hydraulic pressure supply.
Optionally, furthermore pressure accumlator that chuck unit can have one or two hydraulic.In one embodiment, respectively
One pressure accumlator is fluidly connected with one in two clamping cylinder pipelines.As a result, when chuck unit and clamping unit fluid
When separation, the pressure that can improve in clamping cylinder is maintained.
Preferably, the hookup of chuck unit has hydraulic monitoring connection part.The monitoring connection part and hydraulic monitoring pipe
Road fluidly connects.In embodiment, monitored pipeline can have that there are two the branches that stretch in parallel, wherein a branch is via only
It returns valve and the first chuck connection part fluidly connects and another branch connects via another check-valves and the second chuck connection part fluid
It connects.Check-valves in the two branches prevents the hydraulic flow from monitored pipeline to associated chuck connection part respectively.Such as
Hydraulic coupling of the fruit in monitored pipeline is less than the hydraulic coupling at chuck connection part, and hydraulic medium is from relevant chuck connection part
It flows out in monitored pipeline, to reduce pressure here.By the measure, can for example reduce during the defined period
Hydraulic coupling in the clamping cylinder pipeline of pressure-loaded, the as a result, inspection or monitoring of implementable pressure sensor signal.
In addition, hookup can have hydraulic control connection part.The manipulation connection part can be fluidly connected with unlocking pipeline.Solution
The manipulation input unit of lock tube Lu Keyu the first chuck check-valves fluidly connects and/or the manipulation input unit stream of the second chuck check-valves
Body connection.As a result, associated chuck check-valves can be unlocked via unlocking pipeline.
In a preferred embodiment, not only can by the pressure in associated clamping cylinder pipeline and also can by
Pressure in unlocking pipeline carries out the unlock of chuck check-valves.For this purpose, in the manipulation input unit of each chuck check-valves
There are two the reversal valves of input unit for connecting belt respectively at place, and the OR function of logic is realized via the reversal valve.In input side, commutation
Valve is fluidly connected to unlocking pipeline and clamping cylinder pipeline and in the manipulation input unit of outlet side and relevant chuck check-valves.
In the installation site in chuck unit, the reversal valve that there can optionally be is arranged to, so that movable valve components
It is connected in the movement of the input unit at this far from clamping cylinder pipeline (in the case where workpiece rotation) under the action of the centrifugal force, thus
The manipulation not damaged under centrifugal force effect in the clamping cylinder pipeline coupled and the chuck check-valves being connected at reversal valve inputs
Fluidly connecting between portion, and unlock is not thus damaged.
Advantageously, the hookup of chuck unit has pneumatic inspection connection part.Check connection part by means of pneumatically checking
Pipeline is pneumatically connected with ventilation unit.Test valve is disposed in checking pipeline.Associated with test valve when chuck unit is commented
When estimating part and clamping clip being shown be located within the defined band of position, it is locked at and checks pneumatically connecting between connection part and ventilation unit
It connects.If clamping clip is not located within the band of position, but it is located at the internally and/or externally end region in its largest motion region
Between in, empty inspection connection part via ventilation unit.Such as it can assess via the pressure sensor in clamping unit and pneumatically examine
Check the Pneumatic pressure in road.It is faulty by pressure decline identification if clamping clip is not located in the band of position of permission
Or insufficient clamping.
By means of clamping unit and fluidly connected chuck unit, the implementable clamp or release movement of clamping clip.?
This, especially following to carry out:
According to clamping clip towards or away from the mutual desired direction of motion, the first work of hydraulic coupling load clamping cylinder is utilized
Make chamber or the second working chamber and exports hydraulic medium from corresponding another working chamber.For this purpose, making two of clamping unit
One in work valve gear is switched in inflow position and makes another work valve gear respectively and is switched in backwash deployment.
Only when two work valve gears occupy relevant switching position, hydraulic medium can just be transported in a working chamber and from
It is exported in another working chamber.
Optionally, in the case where clamping workpiece, after the clamping movement of clamping clip terminates, i.e. clamp workpiece it
Afterwards, it controls and is pneumatically checking the pressure in pipeline.If occurring Pneumatic pressure herein, clamping clip is located at the band of position allowed
In.In order to check pressure, pneumatic inspection pipeline is loaded using Pneumatic pressure via clamping unit.If clamping clip is located at permission
Except region, empties and pneumatic check pipeline and clamping unit identifies failure when clamping.
Additionally optionally it is possible that after the clamping movement of clamping clip terminates, via control valve gear defined
Decline the hydraulic pressure in control piper during the control period.As a result, in the clamping earthen pipe being linked with feed line
Hydraulic coupling in road or first or second fluid pressure line also declines.The pressure value measured in clamping cylinder pipeline or fluid pressure line must
The pressure in control piper must be followed to decline and (be slightly delayed ground on the time).It can check in this way, in clamping cylinder pipeline
In or the pressure sensor in the first or second fluid pressure line being connected with clamping cylinder pipeline whether work normally, definitely
Say whether one in two clamping cylinder pipelines of chuck unit normally provide hydraulic coupling.It can be saved as a result, in chuck unit
In sensor.
If hydraulic coupling disappears during the operation of clamping device, protected by the check-valves unlocked in chuck unit
Hold clamping pressure or clamping force.For example, if going out in clamping cylinder pipeline between chuck connection part and the check-valves that can be unlocked
It now leaks, clamping pressure is maintained.It can detect the pressure loss via pressure sensor.In the case where this pressure loss
Or also in the case where lacking electric energy, it is switched to the valve gear of clamping unit in mechanically defined switching position.When by
When operator activates the emergent stopping in processing equipment, it is also suitable identical situation.
Detailed description of the invention
Advantageous design scheme of the invention is obtained by dependent claims, specification and attached drawing.Below according to attached drawing
Elaborate a preferred embodiment of the present invention.Wherein:
Fig. 1 shows schematical, the simplified schematic diagram of the clamping device with chuck unit and clamping unit,
Fig. 2 shows the schematic of a section of the attachment device towards the clamping unit in Fig. 1 according to arrow II
Top view,
Fig. 3 shows the fluid line figure of the chuck unit in Fig. 1,
Fig. 4 to 6 shows the different switching positions of the test valve of the chuck unit in Fig. 3,
Fig. 7 shows the fluid line figure of the embodiment of the clamping unit in Fig. 1,
Fig. 8 and 9 shows the fluid line figure according to Fig. 7, wherein the existing valve gear of clamping unit is in different and cuts
In change place,
Figure 10 and 11 respectively illustrates the control signal of the valve gear for switching clamping unit and is used for according to Fig. 7 extremely
Merely illustrative, the very simplified time graph of the pressure sensor value of 9 clamping unit.
Specific embodiment
The clamping device 10 with clamping unit 11 and chuck unit 12 is schematically shown in Fig. 1.Clamping unit
11 and chuck unit 12 can fluidly and be mechanically interconnected.For this purpose, clamping unit 11 has attachment device 13 and chuck
Unit has hookup 14, in order to establish mechanical and fluid connection, 14 collective effect of attachment device 13 and hookup.
It can be clamped via chuck unit 12 and keep workpiece 15.Chuck unit 12 has can toward each other and away from each other
The clamping clip 19 of movement.Preferably, clamping clip 19 can be in common plane relative to the longitudinal central axis line footpath of chuck unit 12
To outwardly or inwardly moving.Chuck unit 12 can have supporting plate 25, carry chuck unit 12 and in foundation and clamping unit
Coupled in particular in order to be mechanically connected by centre in the case where 11 connection.In order to hand operation, supporting plate 25 can releasably with
Chuck unit 12 is connected, thus formed it is common can hand operation structural unit.
Internal or external workpiece 15 can be clamped by means of clamping clip 19.External folder is schematically illustrated in Fig. 1
Tight workpiece 15.Hydraulic clamping cylinder 20 with movable piston 21 is for moving clamping clip 19.Piston 21 is via piston
The driving member of bar 22 and when necessary other machinery is coupled with the movement of clamping clip 19.Clamping clip can be converted piston movement into as a result,
19 movement.Piston 21 is by the cavity fluid Ground Split of clamping cylinder 20 at the first working chamber 23 and the second working chamber 24.Passing through will
It is exported in hydraulic medium be transported in two working chambers 23 or 24 one and from corresponding another working chamber 24 or 23 hydraulic
Medium can produce the movement of piston 21 and at the same time generating the movement of clamping clip 19.Via hydraulic in working chamber 23,24
Power can adjust or change the clamping force between clamping clip 19 and workpiece 15.
Hookup 14 provides hydraulic link portion, to convey hydraulic medium from clamping unit 11 or by hydraulic medium
It exports to clamping unit 11.In this embodiment, there are four at not only hookup 14 but also at attachment device 13 thus
A hydraulic link portion and a pneumatically coupled portion will also elaborate later in conjunction with fluid line figure.In the signal according to Fig. 1
Property diagram in, for better visibility, remove fluid circuit and valve gear and pressure accumlator or pressure source.
It has been illustrated in Fig. 3 the fluid line figure of the embodiment of chuck unit 12.The hookup of chuck unit 12
14 have the first hydraulic chuck connection part 28 and the second hydraulic chuck connection part 29.First chuck connection part 28 is via hydraulic
The first clamping cylinder pipeline 30 and the first working chamber 23 fluidly connects and the second chuck connection part 29 is via hydraulic second folder
Tight earthen pipe road 31 is fluidly connected with the second working chamber 24.Throttle valve component is respectively disposed in two clamping cylinder pipelines 30,31
32.Each throttle valve component 32 has the flow path 34 being throttled via throttle 33.It can be prevented by adjusting throttle 33,
In the case where one be delivered to hydraulic medium in two working chambers 23,24 piston 21 and simultaneously clamp on pincers 19 ballistic kick
Formula movement.Return flow path 35 is in parallel with the flow path 34 being throttled, and is disposed with check-valves in return flow path 35, allows
Hydraulic flow at associated chuck connection part 28 or 29 and prevent the liquid being directed toward on the contrary to the direction of clamping cylinder 20
Pressure flowing.Via return flow path 35, keep flow path 34 short in the case where hydraulic medium is flowed out to chuck connection part 28 or 29
Road, and throttle 33 no longer works.
Between throttle valve component 32 and clamping cylinder 20, the first folder that can be unlocked is disposed in the first clamping cylinder pipeline 30
Disk check-valves 36, and the second chuck check-valves 37 that can be unlocked is disposed in the second clamping cylinder pipeline 31.Chuck check-valves
36,37 prevent the hydraulic flow in associated working chamber 23 or 24 in the state of its locking.Stop to unlock chuck
Valve 36,37 is returned, manipulation input unit 36s or 37s are respectively present.If there is hydraulic coupling at manipulation input unit 36s or 37s, make
Relevant chuck check-valves 36,37 unlocks, to realize the hydraulic flow come in autocorrelative working chamber 23 or 24.
According to example, manipulates input unit 36s or 37s and manipulated via two independent fluid pressure lines.In order to realize this feelings
The output section of condition, the manipulation input unit 36s of the first chuck check-valves 36 and the first reversal valve 38 fluidly connects and the second chuck
The manipulation input unit 37s of check-valves 37 and the output section of the second reversal valve 39 fluidly connect.There are two each tools of reversal valve 38,39
Input unit.If there is hydraulic coupling at least one of two input units place, the hydraulic coupling is defeated via reversal valve 38,39
Portion is applied at associated manipulation input unit 36s or 37s out.
One input unit of the first reversal valve 38 is fluidly connected with the second clamping cylinder pipeline 31, and the one of the second reversal valve 39 is defeated
Enter portion to fluidly connect with the first clamping cylinder pipeline 30.Company between reversal valve 38,39 and relevant clamping cylinder pipeline 31 or 30
It connects and is preferably arranged between throttle valve component 32 and chuck check-valves 36,37.
Corresponding another input unit and the unlocking pipeline 40 of reversal valve 38,39 fluidly connect.Unlocking pipeline 40 fluidly joins
It is connected at the hydraulic control connection part 41 of hookup 4.
Furthermore hookup 14 has hydraulic monitoring connection part 42, hydraulic monitored pipeline 43 is flowed with hydraulic monitoring connection part 42
Body connection.Monitored pipeline 43 fluidly connects via the first branch 43a and the first clamping cylinder pipeline 30 and via the second branch 43b
It is fluidly connected with the second clamping cylinder pipeline 31.It is disposed with check-valves in branch 43a, each of 43b, prevents from monitoring pipe
Road 43 is to the hydraulic flow in corresponding clamping cylinder pipeline 30,31.
Optionally, furthermore chuck unit 12 can have one or two hydraulic pressure reservoir 44.It is illustrated in Fig. 3
Embodiment in, pressure accumlator 44 is as buffer storage and associated working chamber 23 or 24 and/or phase respectively
Associated clamping cylinder pipeline 30 or 31 fluidly connects.As a result, when chuck unit 12 is separated with 11 fluid of clamping unit, it can pass through
Hydraulic leakage stream compensator or trimmer pressure loss.Pressure accumlator 44 is the no intermediate attachment valve or other hydraulic control components the case where
It is lower to be fluidly connected with corresponding associated working chamber 23 or 24.According to example, each pressure accumlator 44 is in clamping cylinder 20 and phase
It is connected between the chuck check-valves 36,37 answered at associated clamping cylinder pipeline 30,31.
Furthermore hookup 14 has pneumatic inspection connection part 45.Pneumatic inspection pipeline 46 make check connection part 45 with
Ventilation unit 47 fluidly connects.It in ventilation unit 47 and checks between connection part 45, the pneumatic insertion of test valve 48 is checked into pipeline 16
In.The movable valve components 49 of test valve 48 are positioned according to the position of clamping clip 19.For this purpose, can be in clamping clip 19 at least
It one or moves between the element of connection and valve components 49 and there is mechanical movement and be coupled, wherein the connection is schematically
It is illustrated in Fig. 3 by linkage element 50.
The different location of the valve components 49 according to the position of clamping clip 19 is illustrated in Fig. 4 to 6.In Fig. 4, folder
Clencher 19 is located in the region of first end section E1, and then first area E1 provides the fortune of the movement for clamping clip 19
The inner radial stop portion in dynamic region.In Fig. 6, clamping clip 19 is located at the second end of the and then end stop of radially outer
In the E2 of portion section.If clamping clip 19 is located at two ends section E1, in one in E2, then the release of valve components 49 is in ventilation unit
(Fig. 4 and 6) is fluidly connected between 47 and inspection connection part 45.If clamping clip 19 is located in two ends section E1, E2 it
Between the band of position B for being allowed for clamping within, then valve components 49, which block, is checking between connection part 45 and ventilation unit 47
Fluidly connect (Fig. 5).
As being illustrated in Fig. 3, hookup 14 can be respectively provided with connection at the connection part of each fluid
Check-valves 14a empties the stream being connected with corresponding connection part to avoid after chuck unit 12 is separated with clamping unit 11
Body pipeline.For example, connection check-valves 14a is mechanically opened when chuck unit 12 is connected with clamping unit 11.
Clamping unit 11 has the pressure source 60 for hydraulic medium, and hydraulic deposit pipeline 61 is connected to pressure source 60
Place.Pressure source 60 diagrammatically only illustrates in Fig. 7 and can have pressure accumlator and/or stores up for stuffing pressure
Motor-pump-unit of storage.The hydraulic medium of the pressure with good grounds example about 80bar is provided in deposit pipeline 61.Pressure
Control unit 62, pressure-control valve that is for example controllable or adjusting are connected at deposit pipeline 61.It can be borrowed via control unit 66
Help pressure adjustment signal D and adjusts the operating pressure in the feed line 63 being connected at pressure control unit 62.It is flowing into
Operating pressure maximum in pipeline 63 is identical as the pressure in deposit pipeline 61.In this embodiment, in feed line
Operating pressure is adjusted 10 into the range between 60bar.
Clamping unit 11 has the tank 64 for hydraulic medium, and the tank 64 and 65 fluid of return line connect
It connects.Via motor-pump-unit of pressure source 60, can the hydraulic medium from tank 64 be placed under pressure and be provided
In deposit pipeline 61.
Clamping unit 11 has the first work valve gear 68 and the second work valve gear 69.First work valve gear 68 include
The first by-passing valve 68a and first check-valve 68b that can be unlocked.Correspondingly, the second work valve gear 69 has the second by-passing valve 69a
With the second check-valve 69b that can be unlocked.First and second by-passing valve 68a, 69a are implemented as 4/3 by-passing valve respectively.In input side,
First and second by-passing valve 68a, 69a are fluidly coupled at feed line 63 using an input unit and utilize another input unit
It is fluidly coupled at return line 65.First and second by-passing valve 68a, 69a are respectively provided with manipulation output section 68c or 69c,
It is fluidly connected with manipulation the input unit 68s or 69s for unlock of correspondingly associated the check-valves 68b or 69b unlocked.
In addition, the first and second by-passing valve 68a, 69a are respectively provided with work output section 68d or 69d, with associated first hydraulic tube
Road 70 or the second fluid pressure line 71 fluidly connect.First check-valve 68b is arranged in the first fluid pressure line 70 and in the second liquid
Second check-valve 69b is arranged in pressure pipe road.First fluid pressure line is from the work output section 68d of the first by-passing valve 68a via first
Check-valves 68b is guided to the first work connection part 72 of attachment device 13.Correspondingly, the second fluid pressure line 71 is from the second by-passing valve
The work output section 69d of 69a is directed to the second work connection part 73 of attachment device 13 via second check-valve 69b.In locking
State in, check-valves 68b, 69b prevent from passing through corresponding fluid pressure line 70 from associated work connection part 72 or 73 respectively
Or 71 to by-passing valve 68a, the hydraulic flow of 69a.
Work valve gear 68,69 at least two and can cut via control unit 66 according between three switching positions of example
It changes.The by-passing valve 68a, 69a of work valve gear 68,69 are used thus.In neutral position, manipulate output section 68c, 69c or
And the output section 68d that works, 69d are fluidly connected with return line 65 respectively.Block feed line 63.Two by-passing valve 68a,
69a passes through mechanical spring part in this embodiment and is tightened in neutral position N (Fig. 7) in advance.From neutral position N, first
By-passing valve 68a can be switched to via the first control signal M1a for the first by-passing valve 68a to be flowed into position Z (Fig. 8), and
It is switched in backwash deployment R (Fig. 9) by the second control signal M1b for the first by-passing valve 68a.Correspondingly, the second bypass
Valve 69a can be switched to via the first control signal M2a for the second by-passing valve 69a to be flowed into position Z (Fig. 9), and via
The second control signal M2b for the second by-passing valve 69a is switched in backwash deployment R (Fig. 8).Position Z is flowed into order to be switched to
In backwash deployment R, each by-passing valve 68a, 69a are respectively provided with two valve driving portions 75 that can be manipulated independently of one another, root
The valve driving portion of electromagnetism is implemented as according to example.Since neutral position N, relevant by-passing valve 68a, 69a can drive via a valve
Portion 75, which is switched to, to be flowed into the Z of position and can be switched in the opposite direction backwash deployment via another valve driving portion 75 respectively
In R.
In flowing into position Z, corresponding by-passing valve 68a, 69a make manipulation output section 68c or 69c be connected with return line 65
It connects and work output section 68d or 69d is made to be connected with feed line 63.In backwash deployment R, corresponding by-passing valve 68a,
69a makes manipulation output section 68c or 69c be connected with feed line 63 and make work output section 68d or 69d and return line 65
It is connected.
First pressure sensor 76 is fluidly coupled at the first fluid pressure line 70, and 77 fluid of second pressure sensor
Ground is connected at the second fluid pressure line 71.First pressure sensor 76 generates first pressure signal P1, and second pressure senses
Device 77 generates second pressure signal P2.Pressure signal P 1, P2 are transferred to control unit 66.
Via control unit 66, two work valve gears 68 can be correspondingly manipulated independently of each other, 69, and it can be made to cut
Change to corresponding flow into the Z of position or in backwash deployment R.Relevant control signal M1a, M1b, M2a, when M2b, two is being not present
A work valve gear 68,69 is located in neutral position N (Fig. 7).
Attachment device 13 has hydraulic controller control portion 80, by means of third fluid pressure line 81 and control valve gear 82
It fluidly connects.Control valve gear 82 includes third by-passing valve 82a according to example and can corresponding third check-valves 82b.Third
By-passing valve is implemented as 4/2 by-passing valve according to example.An input unit of third by-passing valve 82a is fluidly connected with deposit pipeline 61, and
And another input unit is fluidly connected with return line 65.Third by-passing valve 82a has manipulation output section 82c, with third non-return
The manipulation input unit 82s of valve 82b is fluidly connected, in order to be able to make its unlock.Third by-passing valve 82a has control output section
82d is fluidly connected via third check-valves 82b and third fluid pressure line 81.Third by-passing valve 82a is pre-tightened via spring part
To in resting position S (Fig. 7), in the resting position, not only manipulates output section 82c but also control output section 82d and return pipe
Road 65 fluidly connects.Via third control signal M3, the valve driving portion 75 of third by-passing valve can be manipulated, in order to bypass third
Valve 82a is switched in control position from resting position S, and in control position, control output section 82d and 65 fluid of return line connect
It connects and manipulates output section 82c and fluidly connected with deposit pipeline 61.
Third pressure sensor 83 and controller control portion 80 and third fluid pressure line 81 fluidly connect and generate third pressure
Force signal P3 is transferred to control unit 66.
According to example, furthermore attachment device 13 has hydraulic unlock connection part 85, via fluid pressure line 86 and unlock
Valve gear 87 fluidly connects.Solution locking device 87 is in this embodiment by being implemented as the 4th by-passing valve 87a shape of 4/2 by-passing valve
At.4th by-passing valve 87a is fluidly coupled at deposit pipeline 61 using an input unit, and fluidly using another input unit
It is connected at return line 65.Solve output section, the exactly output section of the 4th by-passing valve 87a and the 4th liquid of locking device 87
Pressure pipe road 86 fluidly connects.In resting position S, solution locking device 87 connects the 4th fluid pressure line 86 with 65 fluid of return line
It connects.4th by-passing valve 87a is tightened in resting position S (Fig. 7) in advance via spring part.Via the 4th manipulation letter of control unit 66
The valve driving portion 75 of number controllable 4th by-passing valve 87a of M4, so that the 4th by-passing valve 87a is switched to unlock from resting position S
In position, in unlocked position, lays in pipeline 61 and the 4th fluid pressure line 86 fluidly connects and at the same time with unlock connection part 85
It fluidly connects.
4th pressure sensor 88 is fluidly connected and is generated and transmitted with unlock connection part 85 or the 4th fluid pressure line 86
To the 4th pressure signal P 4 of control unit 66.
In addition to four hydraulic link portions, furthermore attachment device 13 has pneumatically coupled portion 90, can via pneumatic line 91
It is connected or is continuously connected with pneumatic pressure source 92.5th pressure sensor 93 is fluidly coupled at pneumatic line 91, the
Five pressure sensors 93 generate the 5th pressure signal P 5 and are transported at control unit 66.Pneumatic pressure source 92 can produce
It gives birth to the Pneumatic pressure of several bars (such as 6bar) and provides it to pneumatically coupled portion 90.
According to example, only in the defined rotation of assembly space or the turntable with attachment device 13 of processing equipment
Being pneumatically connected between the pneumatic pressure source 92 of clamping unit 11 and the monitored pipeline 46 of chuck unit 12 is established in position.?
In Fig. 2, graphical representation of exemplary illustrates the arrangement of the fluid connection part 72,73,80,85,90 of attachment device 13.According to showing
Example, pneumatically coupled portion 90 are arranged at mandrel, which is joined in the hookup 14 for indicating pneumatic inspection connection part 45
In the corresponding recess at place.Pass through leaving portion and in the entrance of indent, can establish in clamping unit 11 at mandrel
Being pneumatically connected between pneumatically coupled portion 90 and the inspection connection part 45 of chuck unit 12.It optionally, can be only in attachment device
13 relative to hookup 14 only one or it is multiple as defined in establish this in rotation position and be pneumatically connected.
Not only established between clamping unit 11 and chuck unit 12 in stationary state but also in turntable rotation
In the case where fluidly connecting, the first work connection part 72 is fluidly connected with the first chuck connection part 28, the second work connection part 73
Fluidly connected with the second chuck connection part 29, controller control portion 80 with monitoring connection part 42 fluidly connect, unlock connection part 85 with
Manipulation connection part 41 fluidly connects and pneumatically coupled portion 90 is fluidly connected with connection part 45 is checked.
In the preferred embodiment illustrated here, the collective effect of clamping unit 11 and the chuck unit 12 fluidly connected
It is as follows:
It will be assumed that hydraulic medium should be conveyed to first in order to from external clamping tool (as illustrated in fig. 1 such)
Working chamber 23 and export hydraulic medium from the second working chamber 24, to realize piston 21 and at the same time clamping clip 19 it is corresponding
Movement is to clamp workpiece 15.The control signal relevant to time t and pressure that generate thus of schematic, pictorial illustration in Figure 10
Force signal.In the first moment t1, the first work valve gear 68 is switched to via the first control signal M1a and flows into position Z (Fig. 8)
In.Here, the second control signal M1b for the first work valve gear 68 keeps equal to zero, from without to corresponding valve
The manipulation of driving portion 75.According to example, in the first moment t1, via the second control signal for the second work valve gear 69
M2b causes the second work valve gear 69 to the switching (Fig. 8) in backwash deployment R.Here, for the second work valve gear 69
One control signal M2a keeps equal to zero.
By the switching, hydraulic medium is transported to the first work via the first fluid pressure line 70 and the first clamping cylinder pipeline 30
Make in chamber 23.Via the 4th control signal M4 for solving locking device 87, unlocked at connection part 85 simultaneously in the first moment t1
And hydraulic pressure is generated in unlocking pipeline 40 simultaneously, exist at the manipulation input unit 37s of the second chuck check-valves 37 simultaneously
And unlocked, so that hydraulic medium can be flowed out from the second working chamber 24.
In the second moment t2, clamping clip 19 reaches to recline with workpiece 15, thus in the first clamping cylinder pipeline 30 or the first liquid
Hydraulic coupling in pressure pipe road 70 increases, this is recorded by first pressure signal P1.If having reached desired hydraulic coupling, clamping
Clamp workpiece 15 between pincers 19 (according to example after the second moment t2).In the second moment t2, test valve 48 it is movable
It the position of valve components 49 must be in the defined band of position B of permission.This can believe via the pressure of the 5th pressure sensor 93
Number P5 control must almost correspond to the pressure of pneumatic pressure source 92.
After the second moment t2, that is, after clamping workpiece 15, execute auditing routine in a preferred embodiment.For
This, generates the third control signal M3 for controlling valve gear 82 in third moment t3, in order to make it be switched to control position
In.In control position, controller control portion 80 is fluidly connected with return line 65, thus via the first branch of monitored pipeline 43
43a eliminates the pressure in the first fluid pressure line 70 or the first clamping cylinder pipeline 30.Control valve gear 82 is maintained at control position
It is middle through control period TK.The 4th moment t4 during controlling period TK detects pressure damage by first pressure signal P1
It loses and is shown in control unit 66.In the 4th moment t4, correspondingly, in third fluid pressure line 81 or monitored pipeline 43
In hydraulic coupling also decline, this is shown by third pressure signal P 3.
In the 5th moment t5, finishing control period TK.It controls valve gear 82 and passes through the decline of third control signal M3 again
It is switched in resting position S.Then, in monitored pipeline 43 or the first clamping cylinder pipeline 30 and corresponding at the 6th moment
Pressure of the ground in third fluid pressure line 81 or the first fluid pressure line 70 rises again, this passes through first pressure signal P1 and third pressure
Force signal P3 is detected.
By means of this method, the functionality of pressure sensor can be checked.It thereby guarantees that, there is also sensed by first pressure
The pressure and the pressure sensor that device detects are not failures.
In Figure 11, similarly illustrate for inner clamps clamping of workpieces with according to the process of Figure 10 according to exemplary side
Method.Difference is, activates another valve driving portion 75 respectively in two work valve gears 68,69, so that the first operating valve be made to fill
It sets 68 to be switched in backwash deployment R and be switched to the second work valve gear 69 in inflow position Z, as being shown in FIG. 9
Like that.
The present invention relates to a kind of clamping device 10, by mechanical side clamping unit 11 and can be mechanical with clamping unit 11
Ground and the chuck unit 12 being fluidly connected composition.In a preferred embodiment, chuck unit 12 does not have by-passing valve.Chuck list
Member 12 has the clamping cylinder 20 for being set for making clamping clip 19 to move, one working chamber 23 is via the first clamping cylinder pipeline 30
It is fluidly connected with the first chuck connection part 28 and its another working chamber 24 joins via the second clamping cylinder pipeline 31 and the second chuck
Socket part 29 fluidly connects.In two clamping cylinder pipelines 30,31, there is the check-valves 36,37 that can be unlocked respectively.When should be from associated
Working chamber 23 or 24 in export hydraulic medium so as to allow clamping clip 19 move when, occur check-valves 36 or 37 unlock.?
Establish between chuck unit 12 and clamping unit 11 in the case where fluidly connecting, two clamping cylinder pipelines 30,31 are distinguished
It is fluidly connected with associated fluid pressure line 70 or 71.Each fluid pressure line 70,71 be associated with can independent operation and it is changeable
Work valve gear 68,69.Work valve gear 68,69 is preferably mechanically maintained in neutral position N, in neutral position N
Prevent clamping clip 19 from moving.When two work valve gears 68,69 are switched to cutting for definition from neutral position N via control unit 66
When in change place Z or R, the movement of clamping clip 19 is just realized.
List of numerals
10 clamping devices
11 clamping units
12 chuck units
13 attachment devices
14 hookups
14a couples check-valves
15 workpiece
19 clamping clips
20 clamping cylinders
21 pistons
22 piston rods
23 first working chambers
24 second working chambers
25 supporting plates
28 first chuck connection parts
29 second chuck connection parts
30 first clamping cylinder pipelines
31 second clamping cylinder pipelines
32 throttle valve components
33 throttles
34 flow paths being throttled
35 return flow paths
36 first chuck check-valves
The manipulation input unit of 36s the first chuck check-valves
37 second chuck check-valves
The manipulation input unit of 37s the second chuck check-valves
38 first reversal valves
39 second reversal valves
40 unlocking pipelines
41 manipulation connection parts
42 monitoring connection parts
43 monitored pipelines
The first branch of 43a
The second branch of 43b
44 pressure accumlators
45 pneumatic inspection connection parts
46 pneumatic inspection pipelines
47 ventilation units
48 test valves
49 valve components
50 linkage elements
60 pressure sources
61 deposit pipelines
62 pressure control units
63 feed line
64 tanks
65 return lines
66 control units
68 first work valve gears
The first by-passing valve of 68a
68b first check-valve
The control output section of the first by-passing valve of 68c
The work output section of the first by-passing valve of 68d
69 second work valve gears
The second by-passing valve of 69a
69b second check-valve
The control output section of the second by-passing valve of 69c
The work output section of the second by-passing valve of 69d
70 first fluid pressure lines
71 second fluid pressure lines
72 first work connection parts
73 second work connection parts
75 valve driving portions
76 first pressure sensors
77 second pressure sensors
80 controller control portions
81 third fluid pressure lines
82 control valve gears
82a third by-passing valve
82b third check-valves
82c manipulates output section
82d controls output section
83 third pressure sensors
85 unlock connection parts
86 the 4th fluid pressure lines
87 solution locking devices
The 4th by-passing valve of 87a
88 the 4th pressure sensors
90 pneumatically coupled portions
91 pneumatic lines
92 pneumatic pressure sources
93 the 5th pressure sensors
B location region
D pressure adjustment signal
E1 first end section
E2 the second end section
M1a is used for the first control signal of the first by-passing valve
M1b is used for the second control signal of the first by-passing valve
M2a is used for the first control signal of the second by-passing valve
M2b is used for the second control signal of the second by-passing valve
M3 third control signal
The 4th control signal of M4
N neutral position
P1 first pressure signal
P2 second pressure signal
P3 third pressure signal
The 4th pressure signal of P4
The 5th pressure signal of P5
R backwash deployment
S resting position
First moment of t1
Second moment of t2
The t3 third moment
The 4th moment of t4
The 5th moment of t5
The 6th moment of t6
TK controls the period
X unlocked position
Z flows into position
Claims (22)
1. a kind of clamping unit (11),
It has attachment device (13), and the attachment device has hydraulic the first work connection part (72) and the second hydraulic work
Make connection part (73), wherein by means of the attachment device (13), including there is the first working chamber (23) and the second working chamber
(24) the independent chuck unit (12) of hydraulic clamping cylinder (20) can mechanically and fluidly with the clamping unit (11) phase
Connection,
Wherein, the clamping unit (11) has the first work valve gear (68), and output section is by means of the first fluid pressure line
(70) it fluidly connects with the first work connection part (72) to be connected for being transported to hydraulic medium with the clamping unit (11)
It is exported from the first working chamber (23) in the first working chamber (23) of the chuck unit (12) connect or by it,
Wherein, the clamping unit (11) has the second work valve gear (69), and output section is by means of the second fluid pressure line
(71) it fluidly connects with the second work connection part (73) to be connected for being transported to hydraulic medium with the clamping unit (11)
It is exported in the second working chamber (24) of the chuck unit (12) connect or from the second working chamber (24),
Wherein, first work valve gear (68) and second work valve gear (69) at an input unit and provide respectively
The feed line (63) of hydraulic medium under pressure fluidly connects and at another input unit and for hydraulic medium
Return line (65) fluidly connects,
Wherein, described two work valve gears (68,69) can be switched to respectively independently of each other flows into position (Z) or backwash deployment
(R) in, also, in the inflow position (Z), the corresponding output section is fluidly connected with the feed line (63), and
And in the backwash deployment (R), the corresponding output section is fluidly connected with the return line (65)；
Described first and/or it is described second work valve gear (68,69) be respectively provided with work output section (68d, 69d) and behaviour
Control first and second by-passing valves (68a, 69a) of output section (68c, 69c), wherein the work output section (68d, 69d) and phase
The associated first or second fluid pressure line (70,71) fluidly connects, also, described first and/or second operating valve
Device (68,69) be respectively provided be arranged in it is in relevant fluid pressure line (70,71), can via manipulation input unit (68s, 69s)
The check-valves (68b, 69b) of unlock, in the state of locking, the check-valves is blocked to first and second by-passing valve
The hydraulic flow in the direction of (68a, 69a), wherein the manipulation input unit (68s, 69s) and the work valve gear (68,69)
The manipulation output sections (68c, 69c) of the first and second by-passing valves (68a, 69a) fluidly connect.
2. clamping unit according to claim 1, which is characterized in that the first or second work valve gear (68,
69) in inflow position (Z), the corresponding manipulation output section (68c, 69c) of first and second by-passing valve (68a, 69a) with
The return line (65) fluidly connects, and/or in the backwash deployment (R) of first or second work valve gear (68,69)
In, the corresponding manipulation output section (68c, 69c) of first and second by-passing valve (68a, 69a) and the feed line (63)
It fluidly connects.
3. clamping unit according to claim 1 or 2, which is characterized in that first by-passing valve (68a) and/or described
Second by-passing valve (69a) has another switching position for indicating neutral position (N), in the neutral position (N), described first
With the work output section (68d, 69d) of the second by-passing valve (68a, 69a) and manipulation output section (68c, 69c) and the return line
(65) it fluidly connects.
4. clamping unit according to claim 3, which is characterized in that first by-passing valve (68a) and/or described second
By-passing valve (69a) is mechanically held in the neutral position (N).
5. clamping unit according to claim 3, which is characterized in that first by-passing valve (68a) and/or described second
By-passing valve (69a) can be switched in the inflow position (Z) by means of a valve driving portion (75) from the neutral position (N) and
It can be switched in the backwash deployment (R) by means of another valve driving portion (75) from the neutral position (N).
6. clamping unit according to claim 1 or 2, which is characterized in that there are control valve gear (82), and output section is borrowed
Help third fluid pressure line (81) and the controller control portion (80) of the attachment device (13) fluidly connects, wherein the control
Valve gear (82) can switch between control position and resting position (S) and make the controller control in the control position
Portion (80) is fluidly connected with the return line (65).
7. clamping unit according to claim 6, which is characterized in that the control valve gear (82) has defeated with controlling
Portion (82d) and manipulate the third by-passing valve (82a) of output section (82c) out, wherein the control output section (82d) and described the
Three fluid pressure lines (81) fluidly connect, also, the control valve gear (82) have be arranged in the third fluid pressure line (81)
In, can via manipulation input unit (82s) unlock check-valves (82b), be prevented in the state of locking by the third
The hydraulic flow in the direction of port valve (82a), wherein the third of manipulation input unit (82s) and control valve gear (82)
The manipulation output section (82c) of by-passing valve (82a) fluidly connects.
8. clamping unit according to claim 1 or 2, which is characterized in that there are solution locking device (87), and output section is borrowed
Help the 4th fluid pressure line (86) and the unlock connection part (85) of the attachment device (13) fluidly connects, wherein the unlock
Valve gear (87) can switch between unlocked position and resting position (S).
9. clamping unit according to claim 6, which is characterized in that the control valve gear (82) is respectively in an input unit
Place fluidly connects with the return line (65) and fluidly connects at another input unit or with the feed line (63)
Or fluidly connected with hydraulic deposit pipeline (61), wherein the deposit pipeline (61), which provides, to be in and the feed line
(63) hydraulic medium under at least identical hydraulic coupling.
10. clamping unit according to claim 8, which is characterized in that the solution locking device (87) is respectively in an input
It fluidly connects at portion with the return line (65) and connects at another input unit or with the feed line (63) fluid
It connects or is fluidly connected with hydraulic deposit pipeline (61), wherein the deposit pipeline (61), which provides, to be in and the feed line
(63) hydraulic medium under at least identical hydraulic coupling.
11. clamping unit according to claim 1 or 2, which is characterized in that the attachment device (13) has pneumatically coupled
Portion (90) can be connected by means of pneumatic line (91) with pneumatic pressure source (92).
12. clamping unit according to claim 1 or 2, which is characterized in that pressure sensor (76,77) respectively with it is described
It first fluid pressure line (70) and/or is fluidly connected with second fluid pressure line (71).
13. clamping unit according to claim 6, which is characterized in that pressure sensor (83) and the third hydraulic tube
Road (81) fluidly connects.
14. clamping unit according to claim 8, which is characterized in that pressure sensor (88) and the 4th hydraulic tube
Road (86) fluidly connects.
15. clamping unit according to claim 11, which is characterized in that pressure sensor (93) and the pneumatic line
(91) it fluidly connects.
16. clamping unit according to claim 1 or 2, which is characterized in that the feed line (63) controls via pressure
Unit (62) is connected with pressure source (60).
17. clamping unit according to claim 16, which is characterized in that the pressure control unit (62) is proportioning valve.
18. one kind has for hydraulically clamping and keeping the chuck unit (12) of workpiece (15)
Mechanically and the hookup (14) that fluidly connects for the clamping unit (11) with processing equipment or assembly space,
In, the hookup (14) has the first hydraulic chuck connection part (28) and the second hydraulic chuck connection part (29),
Multiple clamping clips can supporting with moving toward each other and away from each other, for acting at the workpiece (15)
(19),
Hydraulic clamping cylinder (20) with movable piston (21), the piston make the first working chamber (23) and the second working chamber
(24) fluid separates and mechanically moves and be coupled with the clamping clip (19) each other,
The first hydraulic clamping cylinder pipeline (30), with first working chamber (23) and the first chuck connection part (28)
It fluidly connects, wherein the first chuck check-valves (36) that can be unlocked is disposed in the first clamping cylinder pipeline (30),
The hydraulic flow from first working chamber (23) is prevented in the state of its locking, wherein for unlocking first chuck
The manipulation input unit (36s) of check-valves (36) is fluidly connected with the second chuck connection part (29),
The second hydraulic clamping cylinder pipeline (31), with second working chamber (24) and the second chuck connection part (29)
It fluidly connects, wherein the second chuck check-valves (37) that can be unlocked is disposed in the second clamping cylinder pipeline (31),
The hydraulic flow from second working chamber (24) is prevented in the state of its locking, wherein for unlocking second chuck
The manipulation input unit (37s) of check-valves (37) is fluidly connected with the first chuck connection part (28)；
The hookup (14) has hydraulic monitoring connection part (42), fluidly connects with hydraulic monitored pipeline (43), wherein
Monitored pipeline (43) tool is there are two the branch (43a, 43b) stretched in parallel, and one of branch (43a) is via check-valves
It is fluidly connected with the first chuck connection part (28) and another branch (43b) is via another check-valves and second chuck
Connection part (29) fluidly connects, wherein the check-valves is prevented from the monitored pipeline (43) to first and second chuck
The hydraulic flow of connection part (28,29).
19. chuck unit according to claim 18, which is characterized in that the hookup (14) joins with hydraulic control
Socket part (41) is fluidly connected with unlocking pipeline (40), the unlocking pipeline (40) and the first chuck check-valves (36)
Manipulation input unit (36s) fluidly connects and/or the manipulation input unit (37s) of the second chuck check-valves (37) fluidly connects.
20. chuck unit described in 8 or 19 according to claim 1, which is characterized in that the hookup (14) has pneumatic inspection
Connection part (45) are looked into, by means of pneumatically checking that pipeline (46) is fluidly connected with ventilation unit (47), wherein in the inspection pipeline
(46) test valve (48) are disposed in, when the clamping clip (19) are located within the defined band of position (B), the test valve
(48) it is locked at being pneumatically connected between inspection connection part (45) and the ventilation unit (47).
21. chuck unit described in 8 or 19 according to claim 1, which is characterized in that there are at least one pressure accumlators
(44), it is fluidly connected with first working chamber (23) or second working chamber (24).
22. one kind is for using with the clamping unit that can mechanically and be fluidly connected with independent chuck unit (12)
(11) implement the method for the clamp or release movement of clamping clip (19) in the case where clamping device (10), wherein the chuck
Unit (12) has the clamping clip that can be supported with moving toward each other and away from each other for clamp or release workpiece (15)
(19) and there is the hydraulic clamping cylinder (20) with movable piston (21), the piston makes the first working chamber (23) and the
Fluid separates and mechanically move and be coupled with the clamping clip (19) two working chambers (24) each other, wherein described first works
Chamber (23) and the first hydraulic clamping cylinder pipeline (30) fluidly connect and second working chamber (24) and hydraulic second presss from both sides
Tight earthen pipe road (31) fluidly connects, wherein the first work of the first clamping cylinder pipeline (30) and the clamping unit (11)
Valve gear (68) fluidly connects, and the second clamping cylinder pipeline (31) and the clamping unit (11) can be independently of described
The second work valve gear (69) manipulated to first work valve gear (68) fluidly connects, and wherein, the clamping unit
(11) there is the feed line (63) for providing the hydraulic medium under pressure and the return line for exporting hydraulic medium
(65), the chuck unit (12) has hydraulic monitored pipeline (43), via check-valves and the first clamping cylinder pipeline
(30) it is connected and is connected via check-valves with the second clamping cylinder pipeline (31), also, the monitored pipeline (43)
It can either be connected with the return line (65) via the control valve gear (82) of clamping unit (11) or can be with the stream
Enter pipeline (63) to be connected or can be connected with another deposit pipeline (61) for providing the hydraulic medium under pressure,
The method has following steps:
By make associated first or second work valve gear (68,69) be switched to flow into position (Z) make it is described
First or second clamping cylinder pipeline (30,31) is connected with the feed line (63) to hydraulic medium source (60), and by making
Associated second or first work valve gear (68,69), which is switched in backwash deployment (R), makes corresponding another clamping cylinder pipeline
(31,30) it is connected with the return line (65)；
Wherein, it is implemented the steps of after clamping workpiece (15):
Measure the first or second clamping cylinder pipeline being at least connected in the case where clamping with the feed line (63)
(30,31) first or second fluid pressure line (70,71) that is in or being fluidly connected with first or second clamping cylinder pipeline (30,31)
In pressure,
The monitored pipeline (43) is set to be connected with the return line (65) during defined control period (K),
Check the pressure measured starts whether to decline later and in the control period in the control period (TK)
(TK) terminate whether to rise again later.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014110007.7 | 2014-07-16 | ||
| DE102014110007.7A DE102014110007B4 (en) | 2014-07-16 | 2014-07-16 | Clamping unit and chuck unit of a clamping device and method for performing a clamping or releasing movement for clamping or releasing a workpiece |
| PCT/EP2015/064578 WO2016008697A1 (en) | 2014-07-16 | 2015-06-26 | Clamping unit and chuck unit of a clamping device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106794563A CN106794563A (en) | 2017-05-31 |
| CN106794563B true CN106794563B (en) | 2019-07-30 |
Family
ID=53525171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580049706.XA Active CN106794563B (en) | 2014-07-16 | 2015-06-26 | The clamping unit and chuck unit of clamping device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN106794563B (en) |
| DE (1) | DE102014110007B4 (en) |
| WO (1) | WO2016008697A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018219449A1 (en) * | 2018-11-14 | 2020-05-14 | Mag Ias Gmbh | Test facility for system testing of an object on a clamping device |
| CH717769A1 (en) * | 2020-08-21 | 2022-02-28 | Erowa Ag | chuck. |
| CN112296909A (en) * | 2020-11-20 | 2021-02-02 | 深圳奥维德机电有限公司 | Intelligent control clamp device and control system for automatic production line |
| CN113069655B (en) * | 2021-03-31 | 2022-08-16 | 张琳 | Inhalation type anesthesia equipment for anesthesia department |
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|---|---|---|---|---|
| DE3232367A1 (en) * | 1982-08-31 | 1984-03-01 | Friedrich Deckel AG, 8000 München | Device for connecting a hydraulic clamping device arranged on a work pallet |
| DE3605014A1 (en) * | 1985-02-19 | 1986-08-21 | Kemptener Maschinenfabrik Gmbh, 8960 Kempten | Program-controlled machining centre |
| DE10218188C1 (en) * | 2002-04-24 | 2003-06-12 | Hohenstein Vorrichtungsbau | Intelligent workpiece holder is connected to machine tool logic circuit for control of position of work |
| DE102004011120A1 (en) * | 2004-03-08 | 2005-09-29 | Karl Hiestand | clamping cylinder |
| DE202006015097U1 (en) * | 2006-10-02 | 2006-11-23 | Deckel Maho Pfronten Gmbh | Clamping device for machine tools includes hydraulic tensioning cylinder for clamping jaws associated with pressure sensors to monitor and ultimately identify tensioning state of jaws |
| CN101920350A (en) * | 2010-09-09 | 2010-12-22 | 江苏无锡建华机床附件集团有限公司 | Vertical type fixed hydraulic power chuck |
| DE102012112928B3 (en) * | 2012-12-21 | 2014-04-24 | Grob-Werke Gmbh & Co. Kg | Set-up station system for manufacturing workpiece for use in e.g. machine tool, has set-up station with frame on workpiece pallet side facing releasably secured release plate that has drive unit for clamping or releasing workpiece |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5822232U (en) * | 1981-08-04 | 1983-02-10 | 相生精機株式会社 | Clamp pallet exchange device for machine tools |
| DE102004005606B3 (en) * | 2004-02-05 | 2005-10-06 | Hydac Fluidtechnik Gmbh | circuitry |
| DE202004019495U1 (en) * | 2004-12-17 | 2005-03-10 | Tünkers Maschinenbau Gmbh | By pressure medium pressure, in particular pneuamtisch, actuated piston-cylinder unit in which a piston connected to a piston rod is linearly movable by pressure medium application, e.g. fluid pressure actuated toggle lever device, especially for the bodywork of the automotive industry |
| DE202006014097U1 (en) | 2006-09-11 | 2008-02-07 | Washtec Holding Gmbh | Washing portal for a car wash |
| DE102007054503A1 (en) * | 2007-11-13 | 2009-05-20 | Hydac Fluidtechnik Gmbh | valve device |
| CN203610704U (en) * | 2013-11-05 | 2014-05-28 | 青岛仁和兴机床制造有限公司 | Hydraulic self-centering chuck |
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2014
- 2014-07-16 DE DE102014110007.7A patent/DE102014110007B4/en active Active
-
2015
- 2015-06-26 WO PCT/EP2015/064578 patent/WO2016008697A1/en active Application Filing
- 2015-06-26 CN CN201580049706.XA patent/CN106794563B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3232367A1 (en) * | 1982-08-31 | 1984-03-01 | Friedrich Deckel AG, 8000 München | Device for connecting a hydraulic clamping device arranged on a work pallet |
| DE3605014A1 (en) * | 1985-02-19 | 1986-08-21 | Kemptener Maschinenfabrik Gmbh, 8960 Kempten | Program-controlled machining centre |
| DE10218188C1 (en) * | 2002-04-24 | 2003-06-12 | Hohenstein Vorrichtungsbau | Intelligent workpiece holder is connected to machine tool logic circuit for control of position of work |
| DE102004011120A1 (en) * | 2004-03-08 | 2005-09-29 | Karl Hiestand | clamping cylinder |
| DE202006015097U1 (en) * | 2006-10-02 | 2006-11-23 | Deckel Maho Pfronten Gmbh | Clamping device for machine tools includes hydraulic tensioning cylinder for clamping jaws associated with pressure sensors to monitor and ultimately identify tensioning state of jaws |
| CN101920350A (en) * | 2010-09-09 | 2010-12-22 | 江苏无锡建华机床附件集团有限公司 | Vertical type fixed hydraulic power chuck |
| DE102012112928B3 (en) * | 2012-12-21 | 2014-04-24 | Grob-Werke Gmbh & Co. Kg | Set-up station system for manufacturing workpiece for use in e.g. machine tool, has set-up station with frame on workpiece pallet side facing releasably secured release plate that has drive unit for clamping or releasing workpiece |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014110007B4 (en) | 2016-02-04 |
| CN106794563A (en) | 2017-05-31 |
| WO2016008697A1 (en) | 2016-01-21 |
| DE102014110007A1 (en) | 2016-01-21 |
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