CN109143396A - The method that fixture release and clamped condition are detected using gas hole - Google Patents
The method that fixture release and clamped condition are detected using gas hole Download PDFInfo
- Publication number
- CN109143396A CN109143396A CN201811117599.1A CN201811117599A CN109143396A CN 109143396 A CN109143396 A CN 109143396A CN 201811117599 A CN201811117599 A CN 201811117599A CN 109143396 A CN109143396 A CN 109143396A
- Authority
- CN
- China
- Prior art keywords
- fixture
- gas hole
- pressure
- pressure sensor
- positioning surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000005856 abnormality Effects 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
- G01V9/007—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00 by detecting gases or particles representative of underground layers at or near the surface
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Abstract
The invention discloses the methods unclamped using gas hole to fixture and clamped condition is detected, the gas hole is arranged on the positioning surface of fixture base, a pressure sensor is accessed on the air inlet pipeline of gas hole, the pressure sensor is connect with control system, when workpiece is bonded normal with the positioning surface of fixture base, the pressure of air inlet pipeline is higher than the high-voltage value of pressure sensor setting, and pressure sensor exports high pressure arriving signal K1 to control system；When the positioning surface of workpiece and fixture base disengages, air inlet pipeline pressure is lower than the low voltage value of pressure sensor setting, and pressure sensor exports low pressure arriving signal K2 to control system.The present invention is detected by the air inlet pipeline air pressure of gas hole on fixture base positioning surface, perceives the clamped condition of fixture, can there are small foreign matter, fixtures not to clamp normally, fixture the abnormalities such as does not unclamp normally and effectively detected to positioning surface.
Description
Technical field
The present invention relates to field of machining technology, and in particular to the fixture of numerically controlled processing equipment.
Background technique
For being widely used in the automatic precision positioning fixture of numerical control processing, it is equipped on the positioning surface of positioning fixture pedestal
Gas hole guarantees the reliable fitting of positioning surface and fixture for blowing down the foreign matter being likely to occur on positioning surface.
In the full-automatic clamping process not participated in manually, especially in condition than under relatively rugged environment, gas hole is simultaneously
It cannot be guaranteed that positioning surface can be cleaned completely, cause to will appear position error once in a while, and then produce rejected part.
If will lead to can not clamp or release fixture in addition, the clamping structure of positioning fixture fails, if cannot and
When perceive such failure, with fixture cooperation process equipment and automatic mechanism be likely to seriously be damaged.
Summary of the invention
Technical problem solved by the invention: it detects the clamping of fixture and whether normal unclamps.
In order to solve the above technical problems, the invention provides the following technical scheme: fixture being unclamped and being clamped using gas hole
The method that state is detected, the gas hole are arranged on the positioning surface of fixture base, access on the air inlet pipeline of gas hole
One pressure sensor, the pressure sensor are connect with control system, when workpiece is bonded normal with the positioning surface of fixture base,
The pressure of air inlet pipeline is higher than the high-voltage value of pressure sensor setting, and pressure sensor exports high pressure arriving signal to control system
K1；When the positioning surface of workpiece and fixture base disengages, air inlet pipeline pressure is lower than the low voltage value of pressure sensor setting,
Pressure sensor exports low pressure arriving signal K2 to control system.
The fixture includes fixture top and the fixture base, and fixture base is equipped with clamp system, clamp system energy
Enough by fixture top and Workpiece clamping in fixture base.
If workpiece is bonded the compressed air No leakage normally, conveyed to gas hole with the positioning surface of fixture base, substantially
There is no gas flowing, air inlet pipeline keeps high pressure, triggers K1 signal, it is normal that control system can perceive clamping.If workpiece and folder
There is foreign matter between the positioning surface for having pedestal, the compressed air conveyed to gas hole can be between workpiece and fixture base positioning surface
Slot leakage, the pressure in air inlet pipeline will decline, and can not trigger K1 signal, then control system can perceive fixture and not clamp
And take corresponding measure.
It is normal to unclamp when fixture base executes the movement for unclamping fixture top or workpiece, the compression conveyed to gas hole
Air leakage, the pressure decline of air inlet pipeline, triggers K2 signal, control system can perceive fixture and normally unclamp.If folder
Tool pedestal or fixture top remarkable action, workpiece do not unclamp, and workpiece and fixture base positioning surface are closed gas-tight, air inlet
Pipeline keeps higher air pressure, cannot trigger K2 signal, it is abnormal that control system can perceive release.
The present invention is detected by the air inlet pipeline air pressure of gas hole on fixture base positioning surface, perceives fixture
Clamped condition, can there are small foreign matter, fixtures not to clamp normally, fixture the abnormalities such as does not unclamp normally and carries out to positioning surface
Effectively detection.
Detailed description of the invention
Following further describes the present invention with reference to the drawings:
Fig. 1 is the schematic diagram of fixture；
Fig. 2 is the explosive view of fixture；
Fig. 3 is the schematic diagram detected using gas hole to fixture release and clamped condition, wherein at two position two-way valve
In on state；
Fig. 4 is the schematic diagram detected using gas hole to fixture release and clamped condition, wherein at two position two-way valve
In closed state.
Symbol description in figure:
10, fixture base；11, gas hole；12, the positioning surface of fixture base；
20, fixture top；
30, two position two-way valve；
40, throttle valve；
50, pressure sensor.
Specific embodiment
In conjunction with Fig. 3, Fig. 4, the method that fixture release and clamped condition are detected using gas hole, the gas hole 11
It is arranged on the positioning surface of fixture base 10, a two position two-way valve 30 of connecting on the air inlet pipeline of gas hole, two position two-way valve
A throttle valve 40 in parallel accesses a pressure sensor 50, the pressure sensor and control between two position two-way valve and gas hole
System connection processed.
The pressure sensor 50 can export two paths of signals, export when air inlet pipeline pressure is higher than the high-voltage value of setting
High pressure arriving signal K1 exports low pressure arriving signal K2 in low voltage value of the air inlet pipeline pressure lower than setting.
In conjunction with Fig. 1, Fig. 2, the fixture includes fixture top 20 and the fixture base 10, and fixture base, which is equipped with, to be clamped
Mechanism, clamp system can be by fixture tops and Workpiece clamping in fixture base.
Workpiece and fixture top 20 are mounted in fixture base 10, workpiece between fixture top and fixture base,
At this point, two position two-way valve 30 is in the open state, the gas hole 11 in fixture base is blown outward.Pacify in workpiece and fixture top
After dress acts, the binding face (positioned at the bottom on fixture top) on fixture top is bonded with the positioning surface 12 of fixture base, folder
After tool pedestal enters clamped condition, two position two-way valve is transferred to closed state, and compressed air enters fixture by throttle valve 40 at this time
The gas hole 11 of pedestal.At this point, if the binding face on fixture top is normally bonded with the positioning surface of fixture base, compressed air without
Leakage is flowed without gas substantially, and air inlet pipeline keeps high pressure, triggers K1 signal, it is normal that control system can perceive clamping；If
The binding face on fixture top or the positioning surface of fixture base have a foreign matter, and compressed air can binding face from fixture top and fixture bottom
Slot leakage between the positioning surface of seat, gas will sharply decline by throttling downstream pressure, and can not trigger K1 signal, then control
System processed can perceive fixture top and not be clamped (correspondingly, workpiece is not also clamped) and take corresponding measure.
Above-mentioned throttle valve 40 can make compressed air marginally flow into the gas hole 11 of fixture base, if gas hole does not have
There is the binding face by fixture top to be fully sealed, the leakage of the air of a small amount of compression will lead to pressure in air inlet pipeline sharply
Decline, can not trigger K1 signal, Guarantee control system is sensitive and accurately perceives fixture top and is not clamped.
When fixture base 10 executes the movement for unclamping fixture top 20, two position two-way valve 30 is kept in off position, this
If when fixture top normally unclamp, the compressed air leakage in air inlet pipeline, gas flows through throttling downstream pressure decline, triggering
K2 signal, control system can perceive fixture top and normally unclamp；If 10 remarkable action of fixture base, fixture top 20 do not have
There is release, binding face is closed gas-tight, and air inlet pipeline keeps higher air pressure, cannot trigger K2 signal, control system can
Perception is unclamped abnormal.
Claims (4)
1. fixture base is arranged in the method detected using gas hole to fixture release and clamped condition, the gas hole
On positioning surface, it is characterised in that: access a pressure sensor on the air inlet pipeline of gas hole, the pressure sensor and control are
System connection, when workpiece is bonded normal with the positioning surface of fixture base, the pressure of air inlet pipeline is higher than pressure sensor setting
High-voltage value, pressure sensor export high pressure arriving signal K1 to control system；When workpiece and the disengaging of the positioning surface of fixture base connect
When touching, air inlet pipeline pressure is lower than the low voltage value of pressure sensor setting, and pressure sensor is reached to control system output low pressure
Signal K2.
2. the method as described in claim 1 unclamped using gas hole to fixture and clamped condition is detected, feature are existed
In: an on-off switch of connecting on the air inlet pipeline, on-off switch flow restriction switch in parallel, the pressure pass
Sensor is between gas hole and on-off switch.
3. the method as claimed in claim 2 unclamped using gas hole to fixture and clamped condition is detected, feature are existed
In: the on-off switch is two position two-way valve, and the flow restriction switch is throttle valve.
4. the method as described in claim 1 unclamped using gas hole to fixture and clamped condition is detected, feature are existed
In: the fixture includes fixture top and the fixture base, and fixture base is equipped with clamp system, and clamp system can will press from both sides
Has top and Workpiece clamping in fixture base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117599.1A CN109143396A (en) | 2018-09-21 | 2018-09-21 | The method that fixture release and clamped condition are detected using gas hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117599.1A CN109143396A (en) | 2018-09-21 | 2018-09-21 | The method that fixture release and clamped condition are detected using gas hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109143396A true CN109143396A (en) | 2019-01-04 |
Family
ID=64823613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811117599.1A Pending CN109143396A (en) | 2018-09-21 | 2018-09-21 | The method that fixture release and clamped condition are detected using gas hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109143396A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0463651A (en) * | 1990-06-29 | 1992-02-28 | Nippei Toyama Corp | Fluid type clamp driving device and unclamping action abnormality detecting device |
| JPH0463661A (en) * | 1990-06-29 | 1992-02-28 | Nippei Toyama Corp | Unclamping action abnormality detecting device |
| JPH0615549A (en) * | 1991-02-18 | 1994-01-25 | Hitachi Seiki Co Ltd | Clamp-unclamp confirmation device |
| JP2009072891A (en) * | 2007-09-24 | 2009-04-09 | Howa Mach Ltd | Clamping device |
| CN203495587U (en) * | 2013-09-28 | 2014-03-26 | 蒋剑锋 | Clamping mistake proofing device for clamp air leakage detecting |
| US20140367903A1 (en) * | 2012-12-24 | 2014-12-18 | Kennametal India Limited | Unclamp feedback unit |
| CN105922037A (en) * | 2016-06-08 | 2016-09-07 | 广东长盈精密技术有限公司 | Fixture and air pressure detection mechanism thereof |
| CN106312642A (en) * | 2016-10-20 | 2017-01-11 | 东莞市众茂五金有限公司 | Air pressure detection type clamp |
| CN106965016A (en) * | 2017-03-24 | 2017-07-21 | 广东工业大学 | A kind of semi-automatic clamping device |
| CN108372415A (en) * | 2018-04-26 | 2018-08-07 | 上海精智实业股份有限公司 | A kind of fixture |
-
2018
- 2018-09-21 CN CN201811117599.1A patent/CN109143396A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0463651A (en) * | 1990-06-29 | 1992-02-28 | Nippei Toyama Corp | Fluid type clamp driving device and unclamping action abnormality detecting device |
| JPH0463661A (en) * | 1990-06-29 | 1992-02-28 | Nippei Toyama Corp | Unclamping action abnormality detecting device |
| JPH0615549A (en) * | 1991-02-18 | 1994-01-25 | Hitachi Seiki Co Ltd | Clamp-unclamp confirmation device |
| JP2009072891A (en) * | 2007-09-24 | 2009-04-09 | Howa Mach Ltd | Clamping device |
| US20140367903A1 (en) * | 2012-12-24 | 2014-12-18 | Kennametal India Limited | Unclamp feedback unit |
| CN203495587U (en) * | 2013-09-28 | 2014-03-26 | 蒋剑锋 | Clamping mistake proofing device for clamp air leakage detecting |
| CN105922037A (en) * | 2016-06-08 | 2016-09-07 | 广东长盈精密技术有限公司 | Fixture and air pressure detection mechanism thereof |
| CN106312642A (en) * | 2016-10-20 | 2017-01-11 | 东莞市众茂五金有限公司 | Air pressure detection type clamp |
| CN106965016A (en) * | 2017-03-24 | 2017-07-21 | 广东工业大学 | A kind of semi-automatic clamping device |
| CN108372415A (en) * | 2018-04-26 | 2018-08-07 | 上海精智实业股份有限公司 | A kind of fixture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202428209U (en) | High-precision blank work piece positioning mechanism | |
| CN105397516B (en) | A kind of workpiece detects formula positioning fixture in place | |
| CN109186883B (en) | Air tightness detection system and method for square lithium ion battery | |
| CN110186413A (en) | It is a kind of to utilize air pressure detection plane laminating apparatus and method | |
| CN105904240A (en) | Finish turning clamp with detecting function | |
| CN208818846U (en) | The device that fixture release and clamped condition are detected using gas hole | |
| CN104493404B (en) | Welding fixture for robot welding automobile seat angle iron | |
| CN101545764A (en) | Method and device for workpiece seating checking | |
| CN109143396A (en) | The method that fixture release and clamped condition are detected using gas hole | |
| CN213616333U (en) | Intelligent control clamp device and control system for automatic production line | |
| CN205888590U (en) | Finish turning anchor clamps of function are detected in area | |
| CN201776667U (en) | Detection device for workpiece clamping of machine tool | |
| CN206493088U (en) | A kind of piston press-loading device | |
| CN207788316U (en) | Workpiece grip mechanism | |
| CN201444041U (en) | Device for detecting workpiece falling on base | |
| CN203587293U (en) | Precision checking tool for air tightness detection device | |
| CN109916349A (en) | The online gas inspection platform of automobile die casting aluminum chain cover flatness and detection method | |
| CN214384532U (en) | Pneumatic test system for railway vehicle foundation brake product | |
| CN105397515A (en) | Self-detecting type two-pin locating clamp | |
| CN114260838A (en) | Tool for machining aero-engine parts | |
| CN209717120U (en) | A kind of clamping device for processing steam turbine blade | |
| KR20130074031A (en) | Clamp detecting apparatus for tool falling protection and method thereof | |
| CN209792644U (en) | Finish turning clamp with detection function | |
| CN208895664U (en) | Air pressure positioning mechanism | |
| CN208503700U (en) | A kind of High Precision Automatic docking gas source attachment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190104 |