CN104515484A - Automatic shut-off mechanism for pneumatic measuring instruments - Google Patents
Automatic shut-off mechanism for pneumatic measuring instruments Download PDFInfo
- Publication number
- CN104515484A CN104515484A CN201410792353.XA CN201410792353A CN104515484A CN 104515484 A CN104515484 A CN 104515484A CN 201410792353 A CN201410792353 A CN 201410792353A CN 104515484 A CN104515484 A CN 104515484A
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- CN
- China
- Prior art keywords
- conduit
- frame
- gear
- guide pipe
- tooth bar
- 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
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/02—Measuring arrangements characterised by the use of fluids for measuring length, width or thickness
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses an automatic shut-off mechanism for pneumatic measuring instruments. The automatic shut-off mechanism comprises a base and a frame arranged on the base, a gear and a positioning plate for mounting a workpiece are arranged on the frame, the gear is hinged to the frame through a pin shaft, the pin shaft is fixedly connected with a motor, an inner cavity is arranged on the frame, a vertical guide pipe and a gear rack are arranged in the inner cavity, the gear rack is slidably connected on the guide pipe, the gear on the frame is meshed with the gear rack, a regulating switch connected with the motor is arranged on the guide pipe, one end of the guide pipe is communicated with a measurement head with holes, the other end of the guide pipe is connected with an air compressor, a rotor flow meter is arranged on the guide pipe, a spiral spring is arranged between the measurement head and the gear rack, and the guide pipe is sleeved with the spiral spring. The automatic shut-off mechanism is simple in structure, stable in operation and capable of performing emergency protection on the measurement head.
Description
Technical field
The present invention relates to surveying instrument equipment, particularly relate to a kind of automatic cut-off mechanism for pneumatic measuring instrument.
Background technology
Air-gauge, also known as pneumatic measuring instrument, air-gauge is the novel length measuring instrument of one used in machine building industry.The variable quantity of workpiece size can be converted to the change of compressed air require or pressure by him, is then indicated by indicating device, thus measures the error of workpiece size.Pneumatic gauging is that medium carries out a kind of technology of non-cpntact measurement to workpiece size with pressurized air, its principle be according to gauge head near surface of the work time gas circuit in pressure change, Computer Analysis is passed through after utilizing pressure transducer that this pressure reduction is transformed into electric signal, process is display measurement result also, but pneumatic measuring instrument is in measuring process, can due to other reasonses such as equipment failures, make the work of pneumatic measuring instrument abnormal, easily damage the measuring head of equipment, but existing pneumatic measuring instrument still lacks suitable tripping protection mechanism, measuring head is often damaged, cause unnecessary loss, therefore in the process broken down at pneumatic measuring instrument, need to provide a kind of emergency protecting equipment, the gauge head of pneumatic measuring instrument is protected.
Summary of the invention
The object of the present invention is to provide that a kind of structure is simple, working stability, the automatic cut-off mechanism for pneumatic measuring instrument of emergency protection can be carried out measuring head.
To achieve these goals, the invention provides following technical scheme: for the automatic cut-off mechanism of pneumatic measuring instrument, enclosed mass base and the frame be located on base, described frame is provided with gear and installs the location-plate of workpiece, described gear by hinge in frame, described bearing pin is fixedly connected with motor, described frame is provided with inner cavity body, vertical conduit and tooth bar is provided with in described inner cavity body, described tooth bar is slidably connected on conduit, wheel and rack engagement in described frame, described conduit is provided with the by-pass cock connecting motor, one end of described conduit is communicated with measuring head with holes, the other end of conduit is connected with air compressor, described conduit is provided with spinner-type flowmeter, volute spring is provided with between described measuring head and tooth bar, volute spring is set on conduit.
The principle of this programme is such: be placed on location-plate by the cylindrical workpiece of hollow, machine operation, drive bearing pin rotates, driven gear rotates thus, due to the wheel and rack engagement in frame, gear driven tooth bar moves, and utilize tooth bar to introduce in right cylinder by measuring head, the measurement of cylinder bore utilizes the compressed-air actuated consumption of measurement to carry out, air compressor works, pressurized air is through spinner-type flowmeter flow directional detection head, and flow out through the gap of measuring head and cylindrical inner surface, when measuring head raises, if find, cylindrical diameter and given size have deviation or have any defect on right cylinder inwalls, then measuring head stops, at this moment, the tooth bar compression helical spring of vertically movement, the by-pass cock connecting motor disconnects, cut off the motor of transmission with this and send about the signal of existing defects in right cylinder, the scale of spinner-type flowmeter carries out scale by diameter dimension in units of the deviation of setting.
The invention has the advantages that: the automatic cut-off mechanism of this pneumatic measuring instrument, be used in the emergency protection to the measuring head of pneumatic measuring instrument, structure is simple, working stability, when equipment failure, effectively can protect the measuring head of pneumatic measuring instrument.
Preferably, described conduit is also provided with gate valve, gate valve can regulate the air inflow of conduit.
Preferably, described location-plate is provided with annular groove, and the middle part of described annular groove is communicated with inner cavity body, workpiece is located in annular groove, trade union college, in annular groove, makes the more stable of trade union college, and measuring head can enter into cylindrical endoporus through annular groove.
Preferably, described tooth bar is provided with web joint, and described web joint is slidably connected on conduit, and web joint can be moved up and down with the vertical direction of carry-over bar along conduit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention for the automatic cut-off mechanism embodiment of pneumatic measuring instrument.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation:
Reference numeral in Figure of description comprises: base 1, frame 2, gear 3, location-plate 4, inner cavity body 5, conduit 6, tooth bar 7, by-pass cock 8, hole 9, measuring head 10, air compressor 11, spinner-type flowmeter 12, gate valve 13, volute spring 14, annular groove 15.
As shown in Figure 1, for the automatic cut-off mechanism of pneumatic measuring instrument, enclosed mass base 1 and the frame 2 be located on base 1, frame 2 is provided with gear 3 and installs the location-plate 4 of workpiece, gear 3 by hinge in frame 2, bearing pin is fixedly connected with motor, frame 2 is provided with inner cavity body 5, vertical conduit 6 and tooth bar 7 is provided with in inner cavity body 5, tooth bar 7 is provided with web joint, web joint is slidably connected on conduit 6, gear 3 in frame 2 engages with tooth bar 7, conduit 6 is provided with the by-pass cock 8 connecting motor, one end of conduit 6 is communicated with the measuring head 10 of with holes 9, the other end of conduit 6 is connected with air compressor 11, conduit 6 is provided with spinner-type flowmeter 12 and gate valve 13, volute spring 14 is provided with between measuring head 10 and tooth bar 7, volute spring 14 is set on conduit 6, location-plate 4 is provided with annular groove 15, the middle part of annular groove 15 is communicated with inner cavity body 5, workpiece is located in annular groove 15.
In the present embodiment, the cylindrical workpiece of hollow is placed on location-plate 4, machine operation, drive bearing pin rotates, driven gear 3 rotates thus, because the gear 3 in frame 2 engages with tooth bar 7, gear 3 is with carry-over bar 7 to move, and utilize tooth bar 7 to introduce in right cylinder by measuring head 10, the measurement of cylinder bore utilizes the compressed-air actuated consumption of measurement to carry out, air compressor 11 works, pressurized air is through spinner-type flowmeter 12 flow directional detection head 10, and flow out through the gap of measuring head 10 with cylindrical inner surface, when measuring head 10 raises, if find, cylindrical diameter and given size have deviation or have any defect on right cylinder inwalls, then measuring head 10 stops, at this moment, tooth bar 7 compression helical spring 14 of vertically movement, the by-pass cock 8 connecting motor disconnects, cut off the motor of transmission with this and send about the signal of existing defects in right cylinder, the scale of spinner-type flowmeter 12 carries out scale by diameter dimension in units of the deviation of setting.
Conduit 6 is also provided with gate valve 13, gate valve 13 can regulate the air inflow of conduit 6, location-plate 4 is provided with annular groove 15, the middle part of annular groove 15 is communicated with inner cavity body 5, workpiece is located in annular groove 15, trade union college is in annular groove 15, make the more stable of trade union college, measuring head 10 can enter into cylindrical endoporus through annular groove 15, tooth bar 7 is provided with web joint, web joint is slidably connected on conduit 6, web joint can be moved up and down with the vertical direction of carry-over bar 7 along conduit 6, the invention has the advantages that: the automatic cut-off mechanism of this pneumatic measuring instrument, be used in the emergency protection to the measuring head 10 of pneumatic measuring instrument, structure is simple, working stability, when equipment failure, effectively can protect the measuring head 10 of pneumatic measuring instrument.
Above-described is only the preferred embodiment of the present invention; should be understood that; for a person skilled in the art; under the prerequisite not departing from structure of the present invention; some distortion and improvement can also be made; these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.
Claims (4)
1. for the automatic cut-off mechanism of pneumatic measuring instrument, enclosed mass base and the frame be located on base, it is characterized in that, described frame is provided with gear and installs the location-plate of workpiece, described gear by hinge in frame, described bearing pin is fixedly connected with motor, described frame is provided with inner cavity body, vertical conduit and tooth bar is provided with in described inner cavity body, described tooth bar is slidably connected on conduit, wheel and rack engagement in described frame, described conduit is provided with the by-pass cock connecting motor, one end of described conduit is communicated with measuring head with holes, the other end of conduit is connected with air compressor, described conduit is provided with spinner-type flowmeter, volute spring is provided with between described measuring head and tooth bar, volute spring is set on conduit.
2., as claimed in claim 1 for the automatic cut-off mechanism of pneumatic measuring instrument, it is characterized in that, described conduit is also provided with gate valve.
3., as claimed in claim 1 for the automatic cut-off mechanism of pneumatic measuring instrument, it is characterized in that, described location-plate is provided with annular groove, and the middle part of described annular groove is communicated with inner cavity body, and workpiece is located in annular groove.
4., as claimed in claim 1 for the automatic cut-off mechanism of pneumatic measuring instrument, it is characterized in that, described tooth bar is provided with web joint, and described web joint is slidably connected on conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792353.XA CN104515484A (en) | 2014-12-18 | 2014-12-18 | Automatic shut-off mechanism for pneumatic measuring instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792353.XA CN104515484A (en) | 2014-12-18 | 2014-12-18 | Automatic shut-off mechanism for pneumatic measuring instruments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104515484A true CN104515484A (en) | 2015-04-15 |
Family
ID=52791152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410792353.XA Pending CN104515484A (en) | 2014-12-18 | 2014-12-18 | Automatic shut-off mechanism for pneumatic measuring instruments |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104515484A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648945A (en) * | 2021-01-27 | 2021-04-13 | 上海圩氧办公用品有限公司 | Adjustable automatic transmission record length measuring instrument |
| CN115638759A (en) * | 2022-03-28 | 2023-01-24 | 无锡连强智能装备有限公司 | Automatic outer diameter measuring device of high efficiency lathe |
-
2014
- 2014-12-18 CN CN201410792353.XA patent/CN104515484A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112648945A (en) * | 2021-01-27 | 2021-04-13 | 上海圩氧办公用品有限公司 | Adjustable automatic transmission record length measuring instrument |
| CN112648945B (en) * | 2021-01-27 | 2022-08-19 | 湖南安全生产科学研究有限公司 | Adjustable automatic transmission record length measuring instrument |
| CN115638759A (en) * | 2022-03-28 | 2023-01-24 | 无锡连强智能装备有限公司 | Automatic outer diameter measuring device of high efficiency lathe |
| CN115638759B (en) * | 2022-03-28 | 2023-09-05 | 无锡连强智能装备有限公司 | Automatic external diameter measuring device of high efficiency lathe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150415 |
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| WD01 | Invention patent application deemed withdrawn after publication |