CN106312674B - A kind of magnetic suspension machining center Weighting system - Google Patents
A kind of magnetic suspension machining center Weighting system Download PDFInfo
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- CN106312674B CN106312674B CN201610929645.2A CN201610929645A CN106312674B CN 106312674 B CN106312674 B CN 106312674B CN 201610929645 A CN201610929645 A CN 201610929645A CN 106312674 B CN106312674 B CN 106312674B
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- head
- counterweight cylinders
- machining center
- weighting system
- air accumulator
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Classifications
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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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/001—Arrangements compensating weight or flexion on parts of the machine
- B23Q11/0017—Arrangements compensating weight or flexion on parts of the machine compensating the weight of vertically moving elements, e.g. by balancing liftable machine parts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The present invention provides a kind of magnetic suspension machining center Weighting system, including be arranged on the counterweight cylinders being connected on head mounting bracket with head, connect counterweight cylinders and be stored with compressed gas air accumulator, be arranged in counterweight cylinders normally closed type aerodynamic brake device, be connected by pipeline with aerodynamic brake device compressed air source, be arranged on the magnetic valve for being connected to control pipeline break-make on pipeline with control device.The present invention can be in head up and down motion, air accumulator makes counterweight cylinders support head to offset the weight of head by providing compressed gas or oil to counterweight cylinders, make head motion more stable, improve machining accuracy, reduce output power of motor demand, expand selection of Motor scope, extend motor service life, when machining center power-off or compression pressure deficiency, closed electromagnetic valve pipeline lets out compressed air side by side makes aerodynamic brake device closure hold piston rod tightly, so that head stop motion, prevents head from damaging, simple in construction, control is accurate.
Description
Technical field
The present invention relates to a kind of magnetic suspension machining center Weighting system.
Background technology
Machinery industry Digit Control Machine Tool is by traditional screw rod as axially driving, and still, screw-rod structure is in long-term use of process
In can exist abrasion, cause axial deterioration in accuracy, service life is not grown.And screw rod is slender type steel part material, long-term high speed is past
Multiple motion, is influenceed by environment and temperature in use, the physical phenomenon expanded with heat and contract with cold be present, and can not meet superhigh precision applies need
Will.
Therefore, driving is progressively substituted by magnetic suspension (linear electric motors), but magnetic suspension (linear electric motors) lathe is on Z axis
In lower motion process, the problem of how realizing counterweight balance and how preventing from falling under head when lathe breaks down be present.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, to propose a kind of magnetic suspension machining center Weighting system, can
Make Z axis load balance in head up and down motion, lathe is stopped or during failure, and head can be prevented by aerodynamic brake device
Under fall, it is simple in construction, be easily controlled.
The present invention is achieved through the following technical solutions：
A kind of magnetic suspension machining center Weighting system, machining center include head mounting bracket, are arranged on head mounting bracket
By the linear electric motors driving head to move up and down and the control device being connected with linear electric motors, including it is arranged on head mounting bracket
The counterweight cylinders that are connected with head, the air accumulator for connecting counterweight cylinders and being stored with compressed gas, the normally closed type being arranged in counterweight cylinders
Aerodynamic brake device, the compressed air source being connected by pipeline with aerodynamic brake device, it is arranged on pipeline use is connected with control device
In the magnetic valve of control pipeline break-make, to offset the weight of head, control device can for making counterweight cylinders support head for air accumulator
Control magnetic valve, which is opened, turns on pipeline, the piston rod of release counterweight cylinders is opened after the ventilation of aerodynamic brake device, so that head can
Move up and down, when power is off, closed electromagnetic valve pipeline lets out compressed air side by side makes aerodynamic brake device closure hold piston rod tightly.
Further, in addition to the control device pressure tester being connected, for measuring the compressed air source pressure
Force value simultaneously feeds back to the control device, and when compressed air source insufficient pressure, the control device controls the magnetic valve to close
Compressed air is let out in stopped pipe road side by side, aerodynamic brake device closure is held the piston rod tightly.
Further, the counterweight cylinders include cylinder body, the piston being movably arranged in cylinder body and the work being arranged on piston
Cylinder interior is separated into upper and lower chamber by stopper rod, piston, and the air accumulator is connected with cavity of resorption for driving piston rod to stretch out, epicoele
With atmosphere.
Further, the cylinder body of the counterweight cylinders is arranged on the head mounting bracket, the piston rod and the head
Connection.
Further, the compressed air source is supplied by being arranged on the check valve on the air accumulator to the air accumulator
Gas, air accumulator provides compressed air to the counterweight cylinders makes counterweight cylinders support head offset the weight of head.
Further, the filter being connected respectively with the compressed air source and check valve, the survey are arranged in addition to
Pressure device is set on the filter.
Further, the air bag full of nitrogen is provided with the air accumulator, other area fillings are oily in air accumulator, gas storage
Tank provides oil to counterweight cylinders makes counterweight cylinders support head offset the weight of head.
Further, in addition to the compressed air source filter being connected, the pressure tester are arranged on filter
On.
The present invention has the advantages that：
For the present invention in head up and down motion, air accumulator makes counterweight cylinders branch by providing compressed gas or oil to counterweight cylinders
Support head makes head motion more stable, improves machining accuracy, reduce output power of motor demand, expand to offset the weight of head
Big selection of Motor scope, extends motor service life, and when machining center power-off or compressed air pressure deficiency, magnetic valve closes
Compressed air is let out in stopped pipe road side by side makes aerodynamic brake device closure hold piston rod tightly, so that head stop motion, prevents head from damaging
Bad, simple in construction, control is accurate.
Brief description of the drawings
The present invention is described in further details below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of machining center of the present invention.
Fig. 2 is machining center X-axis travel mechanism structural representation of the present invention.
Fig. 3 is machining center Y-axis moving mechanism structural representation of the present invention.
Fig. 4 is machining center Z axis travel mechanism structural representation of the present invention.
Fig. 5 is the structural representation of one embodiment of the invention.
Fig. 6 is the structural representation of another embodiment of the present invention.
Embodiment
As shown in Figures 1 to 6, magnetic suspension gantry machining center is arranged on two on base 1 including base 1, relative spacing
Column 2, the crossbeam 3 being arranged between two columns 2, the tool magazine 7 for being arranged on the side of crossbeam 3, can transverse horizontal be movably arranged at
First slide 4 on crossbeam 3, can the second slide 5 that is movably arranged on base 1 of vertical equity, liftable movably set
Head mounting bracket 63 in first slide 4, the head 6 on head mounting bracket 63, it is rotatably arranged in the second cunning
Seat 5 on objective table 51, be arranged between second slide 5 and objective table 51 be used for driving objective table 51 rotate the first DD horses
The X-axis travel mechanism reach, being arranged between crossbeam 3 and first slide 4, the Y-axis being arranged between base 1 and second slide 5 are moved
Motivation structure, the Z axis travel mechanism being arranged between first slide 4 and head mounting bracket 63, respectively with X, Y, Z axis travel mechanism and
The control device of first DD motors connection and the Weighting system being connected with control device, X, Y, Z axis travel mechanism include straight line
Motor, X-axis travel mechanism also include the X-axis optical ruler 33 for moving along the x-axis direction setting, and Y-axis moving mechanism also includes moving along Y-axis
The Y-axis optical ruler 13 that dynamic direction is set, Z axis travel mechanism also include the Z axis optical ruler 42 set along Z axis moving direction, control
Device is connected to form closed-loop control with each optical ruler and linear electric motors respectively, and head 6 includes being rotatably provided in head mounting bracket
Reversing frame 61 on 63, the main shaft 62 being arranged on reversing frame 61, be provided between head mounting bracket 63 and reversing frame 61 with
2nd DD motors of control device connection, the 2nd DD motors are used to drive reversing frame 61 to rotate, and the first DD motors can drive loading
Platform 51 realizes 360 degree of rotations, and the 2nd DD motors can drive reversing frame 61 to realize ± 105 degree of rotations, and tool magazine 7 is used for for main shaft 62 more
Tool changing head.
First slide 4 is movably disposed on crossbeam 3 by two X-axis line slideways 31, and two X-axis line slideways 31 are spaced
It is arranged on crossbeam 3, the linear electric motors of X-axis travel mechanism include the He of X-axis magnetic sheet 32 being arranged between two X-axis line slideways 31
The X-axis coil 34 being arranged in first slide 4, second slide 5 are movably disposed at base 1 by two Y-axis line slideways 11
On, Y-axis line slideway 11 is disposed on base 1, and the linear electric motors of Y-axis moving mechanism are led including being arranged in two Y-axis straight lines
Y-axis magnetic sheet 12 and the Y-axis coil 14 being arranged in the second slide 5 between rail 11, the head mounting bracket 63 is by setting
The slide 64 put on head mounting bracket 63 is engaged with two Z axis line slideways 41, is movably disposed at the first slide 4
On, the Z axis travel mechanism includes the Z axis magnetic sheet 43 being arranged between two Z axis line slideways 41 and is arranged on the head peace
Shelve the z axis circle 44 on 63.
Base 1, crossbeam 3 are that natural marble stone material is made, and main shaft 62 is that 30000 turns of 5.5Kw/4.5N.m electricity is main
Axle, it is ensured that spindle vibration is less than 0.1G at 10000 turns, and the freezing for being cooled down to main shaft bearing is provided with main spindle box
Liquid.
Weighting system includes being arranged on the counterweight cylinders 7 being connected with head 6 on head mounting bracket 63, connection counterweight cylinders 7 and deposited
The normally closed type aerodynamic brake device 71 that contain the air accumulator 8 of compressed air, is arranged in counterweight cylinders 7, by pipeline and aerodynamic brake
Compressed air source 9 that device 71 connects, it is arranged on and is connected to the magnetic valve 73 of control pipeline break-make on pipeline with control device, sets
The filter 75 of pressure tester 74 is equipped with, counterweight cylinders 7 include cylinder body 76, the piston being movably arranged in cylinder body 76 and are arranged on work
Piston rod 77 beyond the Great Wall, piston will be separated into epicoele and cavity of resorption inside cylinder body 76, air accumulator 8 is connected with cavity of resorption for driving piston
Bar 77 is stretched out, epicoele and atmosphere, and the pressure gauge 82 that can check gas pressure value in air accumulator 8, cylinder are provided with air accumulator 8
Body is arranged on head mounting bracket 63, and piston rod 77 is connected with head 6, air accumulator 8 be used for make counterweight cylinders 7 support head 6 with to
Disappear the weight of head 6, and control device control magnetic valve 73, which is opened, turns on pipeline, and aerodynamic brake device 71 is opened release after ventilating and matched somebody with somebody
The piston rod 77 of weight cylinder 7, so that head 6 can move up and down, when power is off, magnetic valve 73 closes pipeline and lets out compressed air side by side
The closure of aerodynamic brake device 71 is set to hold piston rod 77 tightly, so that the stop motion of head 6, pressure tester 74 is used to measure compressed air
The pressure value is simultaneously fed back to control device by the pressure value in source 9, when 9 insufficient pressure of compressed air source, control device control electricity
Magnet valve 73 closes pipeline and lets out compressed air side by side, the closure of aerodynamic brake device 71 is held piston rod 77 tightly, so that head 6 stops fortune
It is dynamic, in one embodiment, as shown in figure 5, compressed air source 9 is carried by the check valve 81 being arranged on air accumulator 8 to air accumulator 8
For compressed air, air accumulator 8 provides compressed air to counterweight cylinders 7 makes counterweight cylinders 7 support head 6 to offset the weight of head 6, mistake
Filter 75 is connected with compressed air source 9 and check valve 81 respectively, in another embodiment, as shown in fig. 6, being set in air accumulator 8
There is an air bag full of nitrogen 84, other area filling oil 83 in air accumulator 8, air accumulator 8 provides oil to counterweight cylinders makes counterweight cylinders 7
Head 6 is supportted to offset the weight of head 6.The foregoing is only a preferred embodiment of the present invention, therefore this can not be limited with this
The scope implemented is invented, i.e., the equivalent changes and modifications made according to scope of the present invention patent and description all should be still
Remain within the scope of the patent.
Claims (7)
1. a kind of magnetic suspension machining center Weighting system, machining center include head mounting bracket, be arranged on head mounting bracket by
The linear electric motors driving head to move up and down and the control device being connected with linear electric motors, it is characterised in that：Weighting system includes
The air accumulator that is arranged on the counterweight cylinders being connected on head mounting bracket with head, connects counterweight cylinders and be stored with compressed gas, set
Normally closed type aerodynamic brake device in counterweight cylinders, the compressed air source being connected by pipeline with aerodynamic brake device, it is arranged on pipeline
Upper and control device is connected to the magnetic valve of control pipeline break-make, and air accumulator is used to make counterweight cylinders support head offset head
Weight, control device can control magnetic valve open turn on pipeline, aerodynamic brake device ventilation after open release counterweight cylinders work
Stopper rod, so that head can move up and down, when power is off, closed electromagnetic valve pipeline lets out compressed air side by side closes aerodynamic brake device
Fill the span of a man's arms tight piston rod；Also include the pressure tester being connected with the control device, for measuring the compressed air source pressure value
And the control device is fed back to, when compressed air source insufficient pressure, the control device controls the closed electromagnetic valve pipe
Compressed air is let out in road side by side, aerodynamic brake device closure is held the piston rod tightly.
A kind of 2. magnetic suspension machining center Weighting system according to claim 1, it is characterised in that：The counterweight cylinders include
Cylinder interior is separated into upper and lower by cylinder body, the piston being movably arranged in cylinder body and the piston rod being arranged on piston, piston
Chamber, the air accumulator are connected with cavity of resorption for driving piston rod to stretch out, epicoele and atmosphere.
A kind of 3. magnetic suspension machining center Weighting system according to claim 2, it is characterised in that：The cylinder of the counterweight cylinders
Body is arranged on the head mounting bracket, and the piston rod is connected with the head.
A kind of 4. magnetic suspension machining center Weighting system according to Claims 2 or 3, it is characterised in that：The compression is empty
Source of the gas is supplied by being arranged on the check valve on the air accumulator to the air accumulator, and air accumulator provides compression to the counterweight cylinders
Air makes counterweight cylinders support head offset the weight of head.
A kind of 5. magnetic suspension machining center Weighting system according to claim 4, it is characterised in that：The Weighting system is also
Including the filter being connected respectively with the compressed air source and check valve, the pressure tester is set on the filter.
A kind of 6. magnetic suspension machining center Weighting system according to Claims 2 or 3, it is characterised in that：The air accumulator
In be provided with the air bag full of nitrogen, other area fillings oil in air accumulator, air accumulator provides oil to counterweight cylinders makes counterweight cylinders branch
Head is supportted to offset the weight of head.
A kind of 7. magnetic suspension machining center Weighting system according to claim 6, it is characterised in that：The Weighting system is also
Including the filter being connected with the compressed air source, the pressure tester is set on the filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610929645.2A CN106312674B (en) | 2016-10-31 | 2016-10-31 | A kind of magnetic suspension machining center Weighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610929645.2A CN106312674B (en) | 2016-10-31 | 2016-10-31 | A kind of magnetic suspension machining center Weighting system |
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| Publication Number | Publication Date |
|---|---|
| CN106312674A CN106312674A (en) | 2017-01-11 |
| CN106312674B true CN106312674B (en) | 2017-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610929645.2A Active CN106312674B (en) | 2016-10-31 | 2016-10-31 | A kind of magnetic suspension machining center Weighting system |
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| CN (1) | CN106312674B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107838744A (en) * | 2017-12-05 | 2018-03-27 | 江西佳时特精密机械有限责任公司 | Lathe negative pressure counter weight device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206140193U (en) * | 2016-10-31 | 2017-05-03 | 福建省正丰数控科技有限公司 | Magnetic suspension machining center weighting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201253777Y (en) * | 2008-09-08 | 2009-06-10 | 厦门大金机械有限公司 | Handpiece lifting balance weight device of vertical numerical control processing centre machine |
| ES2412630B1 (en) * | 2010-10-21 | 2014-05-09 | Zayer, S.A. | WEIGHT COMPENSATION DEVICE FOR TOOL MACHINES |
| CN202668242U (en) * | 2012-06-06 | 2013-01-16 | 广州泰胜数控机械有限公司 | Automatic balance system for machine tool |
| CN104148952B (en) * | 2014-08-12 | 2016-08-17 | 东华大学 | A kind of nano-precision directly drive enclosed fluid pressure upright guide rail system |
| CN105345588A (en) * | 2015-12-11 | 2016-02-24 | 山东威达重工股份有限公司 | Pneumatically-balanced automatic brake device combined with calliper brake |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206140193U (en) * | 2016-10-31 | 2017-05-03 | 福建省正丰数控科技有限公司 | Magnetic suspension machining center weighting system |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A counterweight system of Maglev machining center Effective date of registration: 20201109 Granted publication date: 20171229 Pledgee: Bank of China Limited by Share Ltd. Anxi branch Pledgor: FUJIAN PROVINCE ZHENG FENG CNC TECHNOLOGY Co.,Ltd. Registration number: Y2020980007679 |
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