CN109959963A - A kind of ionisation chamber fixture - Google Patents
A kind of ionisation chamber fixture Download PDFInfo
- Publication number
- CN109959963A CN109959963A CN201910354798.2A CN201910354798A CN109959963A CN 109959963 A CN109959963 A CN 109959963A CN 201910354798 A CN201910354798 A CN 201910354798A CN 109959963 A CN109959963 A CN 109959963A
- Authority
- CN
- China
- Prior art keywords
- collet
- screw rod
- ionisation chamber
- turntable
- guiding screw
- 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.)
- Granted
Links
- 230000001360 synchronised effect Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- -1 polyethylene Polymers 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 claims description 3
- 239000004698 Polyethylene Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
- G01T7/005—Details of radiation-measuring instruments calibration techniques
Abstract
The present embodiments relate to a kind of ionisation chamber fixtures, comprising: electric rotary table, stepper motor and turntable driven by stepper motors；They sup-port is vertical with plane where turntable between turntable and manual；Manual, comprising: ground way plate, V-type collet, opposite type movement lead screw and handwheel；Type movement lead screw includes the first guiding screw rod and the second guiding screw rod in opposite directions, and the hand of spiral that the first guiding screw rod and second are oriented to screw rod is opposite；One end of the first guiding screw rod is arranged in handwheel；V-type collet includes the first collet and the second collet, is arranged on ground way plate, the clamping end of the first collet and the second collet all has V-type groove structure and is oppositely arranged；There is the fixing end of first collet the first sliding block to be socketed on the first guiding screw rod, there is the fixing end of second collet the second sliding block to be socketed on the second guiding screw rod, so that the first collet and second collet generate synchronous relative motion with the rotation of screw rod to grip ionisation chamber.
Description
Technical field
The present invention relates to a kind of grip device more particularly to a kind of ionisation chamber fixtures.
Background technique
Cavity ionization chamber and other type of radiation dose detectors are used for medicine, and protection, the X-ray of ambient level, γ are penetrated
The quantitative measurments such as line generally require and periodically carry out magnitude tracing, quality control.
In regularly calibrating, calibration process, need that ionisation chamber or other radiation dose detectors are fixed and are determined
Position adjustment.Therefore it needs to use dedicated fixture it is fixed.
Currently used fixture is unilateral operation, therefore when clamping different size ionisation chamber bars, requires to move every time
Entire platform re-starts positioning, cumbersome.
Summary of the invention
The purpose of the present invention is in view of the drawbacks of the prior art, providing a kind of ionisation chamber special fixture, realize ionisation chamber or
Convenient fixation during the detectors making and research such as calibrating, calibration or ionisation chamber of other radiation dose detectors and accurate fixed
Position.
To achieve the above object, the present invention provides a kind of ionisation chamber fixtures, comprising:
Electric rotary table, including stepper motor and by the stepper motor driven turntable；Have on the turntable
Support rod bottom end fixing threaded hole；
Support rod bottom end fixing threaded hole on support rod, the bottom end of the support rod and the turntable is connected by screw thread
It connects, the axial direction of the support rod is vertical with the plane of the turntable；
Manual, including ground way plate, V-type collet, opposite type movement lead screw and handwheel；
The opposite type movement lead screw includes the first guiding screw rod and the second guiding screw rod, and described first is oriented to the one of screw rod
It holds and connects with one end of the second guiding screw rod in interconnecting piece, the screw thread side of the first guiding screw rod and the second guiding screw rod
To opposite；The other end of the first guiding screw rod is arranged in the handwheel；
The bottom of the ground way plate has supporting bar top fixing threaded hole, and the support on position and the turntable
Bar bottom end fixing threaded hole is corresponding；The top of the support rod is connected through a screw thread with the supporting bar top fixing threaded hole；
The V-type collet includes the first collet and the second collet, is arranged on the ground way plate, first collet
V-type groove structure is all had with the clamping end of the second collet, and the clamping end of first collet and the second collet is oppositely arranged；
The fixing end of first collet has the first sliding block, is socketed on the first guiding screw rod, the fixation of second collet
End has the second sliding block, is socketed on the second guiding screw rod, so that the first collet and second collet are transported with opposite type
The rotation of dynamic screw rod generates synchronous relative motion to grip ionisation chamber.
Preferably, the handwheel rotation drives the first guiding screw rod to press second by first direction rotation and the second guiding screw rod
Direction rotates, and first collet is driven to generate the axial synchronous phase along the opposite type movement lead screw with second collet
To movement；
The handwheel rotation drives the first guiding screw rod by second direction rotation and the second guiding screw rod is revolved by first direction
Turn, the synchronous of axial direction for driving first collet to be generated with second collet along the opposite type movement lead screw is transported backwards
It is dynamic；
The first direction and the second direction are opposite direction of rotation.
Preferably, first sliding block and second sliding block are symmetrical arranged in the interconnecting piece two sides.
Preferably, the turntable includes fixed part and rotating part, offers fixed mounting hole on the turntable, to
Bolt is fixedly mounted to be arranged in the fixed mounting hole, is fixed on the rotating part, the turntable is fixed on outside
On test platform.
Preferably, the ground way plate has guide groove, and the axial parallel opposite type of the guide groove moves silk
The axial direction of bar；The bottom end of first collet and the second collet is sliding part, is slidably arranged in the guide groove.
Preferably, the central axis concentric co-axial of the geometrical central axis of the V-type collet and the turntable, the support rod
Axial direction it is vertical with the upper surface of the V-type collet.
Preferably, the V-type collet is made of the compound-material that low-Z element forms；The compound-material
To be less than the material that the element of the atomic number 13 of aluminium forms by atomic number.
It is further preferred that the compound-material of low-Z element composition includes: polyethylene, organic glass or
Polytetrafluoroethylene (PTFE).
Ionisation chamber fixture provided in an embodiment of the present invention can effectively guarantee ionisation chamber or other radiation dose detectors
Simple, quick, accurate positioning in calibrating, calibration and measurement experiment, it is easy to operate, it is practical.
Detailed description of the invention
Fig. 1 is the schematic perspective view of ionisation chamber fixture provided in an embodiment of the present invention；
Fig. 2 is the main view of ionisation chamber fixture provided in an embodiment of the present invention；
Fig. 3 is the schematic perspective view of manual provided in an embodiment of the present invention；
Fig. 4 is the main view of manual provided in an embodiment of the present invention；
Fig. 5 is the top view of manual provided in an embodiment of the present invention.
Specific embodiment
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Fig. 1 is the schematic perspective view of ionisation chamber fixture provided in an embodiment of the present invention, and Fig. 2 mentions for the embodiment of the present invention
The main view of the ionisation chamber fixture of confession.As shown, the ionisation chamber fixture of the embodiment of the present invention includes: manual 1, support rod
2 and electric rotary table 3；
Electric rotary table 3, including stepper motor 31 and the turntable 32 driven by stepper motor 31.
Wherein, there is support rod bottom end fixing threaded hole on turntable 32.Turntable 32 includes fixed part and rotating part, rotation
Portion is located above fixed part.Fixed mounting hole 321 is offered on turntable 32, is arranged in fixed installation bolt is fixedly mounted
In hole 321, and turntable 32 is fixed on external testing platform by fixed rotating part.Fixed installation in mounting hole 321
Bolt extend into below rotating part and fixes with fixed part, to will not influence the rotation in the portion of walking around.
Fixed mounting hole 321 as shown in the figure is four, can use less in practical application or more be fixedly mounted
Hole is fixed.Turntable 32 can be rotated with 360 °, and step motor control rotation is measured for ionisation chamber angular response.
The bottom end of support rod 2 is connected through a screw thread with support rod bottom end fixing threaded hole, the axial direction and turntable 32 of support rod 2
Plane it is vertical；The apical support manual of support rod 2, specific connection type are described in detail later.In practical applications,
The support rod of different length can be selected according to the length requirement of ionisation chamber bar.
Manual 1, it is specific as in Figure 3-5, including ground way plate 11, V-type collet 12, opposite type movement lead screw 13
With handwheel 14；
Opposite type movement lead screw 13 includes the first guiding screw rod 131 and the second guiding screw rod 132, the first guiding screw rod 131
One end with second guiding screw rod 132 one end connect in interconnecting piece 133, first guiding screw rod 131 and second guiding screw rod 132
Hand of spiral it is opposite.
The other end of the first guiding screw rod 131 is arranged in handwheel 14.
The bottom of ground way plate 11 has supporting bar top fixing threaded hole (not shown), and position and turntable 32
On support rod bottom end fixing threaded hole it is corresponding；That is the quantity in hole, the setting angle and distance between Kong Yukong all correspond.
The top of support rod 2 is connected through a screw thread with supporting bar top fixing threaded hole.
V-type collet 12 includes the first collet 121 and the second collet 122, is separately positioned on ground way plate 11, fixed to slide
Guidance tape 11 has guide groove 111, the axial direction of the axial parallel opposed longer sides type movement lead screw 13 of guide groove 111；First collet 121 and
The bottom end of two collets 122 is sliding part, is slidably arranged in guide groove 111, is collimated to play to 12 direction of motion of V-type collet
Function.
The clamping end of first collet 121 and the second collet 122 all has V-type groove structure, and the first collet 121 and second
The clamping end of collet 122 is oppositely arranged；The fixing end of first collet 121 has the first sliding block 1211, is socketed in the first guide wire
On bar 131, the fixing end of the second collet 122 has the second sliding block 1221, is socketed on the second guiding screw rod 132, so that first
Collet 121 and the second collet 122 generate synchronous relative motion with the rotation of opposite type movement lead screw 13 to grip ionisation chamber.
In the preferred scheme, the first sliding block 1211 and the second sliding block 1221 are symmetrical arranged in 133 two sides of interconnecting piece.
The geometrical central axis of V-type collet 12 and the central axis concentric co-axial of turntable 32, the axial direction and V-type of support rod 2 are pressed from both sides
First 1 upper surface is vertical.
Further, V-type collet 13 of the present invention is made of the compound that low-Z element forms；Low atomic number member
Element is the element for the atomic number 13 that atomic number is less than aluminium.For example, the compound of low-Z element composition includes: poly- second
Alkene, organic glass or polytetrafluoroethylene (PTFE) etc. can effectively reduce ray scattering.
When ionisation chamber is fixed using ionisation chamber fixture clamping ionisation chamber bar of the invention, rotation hand wheel 14 is driven
First guiding screw rod 131 is rotated by first direction and the second guiding screw rod 132 is rotated by second direction, drives the first collet 121
The axial synchronous relative motion along the 11 opposite type movement lead screws 13 is generated with the second collet 122, to clamp ionisation chamber
Bar；
When discharging the ionisation chamber bar of ionisation chamber fixture clamping, rotation hand wheel 14 drives the first guiding screw rod 131 to press second
Direction rotates and the second guiding screw rod 132 is rotated by first direction, and the first collet 121 and the second collet 122 is driven to generate along phase
Axial synchronization to type movement lead screw moves backwards, to discharge ionisation chamber bar；First direction and second direction are herein
Refer to opposite direction of rotation.
The effect of ionisation chamber fixture of the present invention is that concentric co-axial vertically clamps ionisation chamber bar, and can do ionisation chamber simultaneously
Angular response measurement provides a convenience for the experiment of calibrating, calibration and ionisation chamber, and simple ionisation chamber replacer avoids moving greatly
The cumbersome of workbench small distance adjustment is moved, guarantees the precision and accuracy of measurement, it is easy to operate, it is practical.
The ionisation chamber fixture of the embodiment of the present invention can be equally used for the calibrating of other radiation dose detectors, calibration, or
Convenient fixation and accurate positionin during person's detector making and research.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (8)
1. a kind of ionisation chamber fixture, which is characterized in that the ionisation chamber fixture includes:
Electric rotary table, including stepper motor and by the stepper motor driven turntable；There is support on the turntable
Bar bottom end fixing threaded hole；
Support rod, the bottom end of the support rod are connected through a screw thread with the support rod bottom end fixing threaded hole on the turntable, institute
The axial direction for stating support rod is vertical with the plane of the turntable；
Manual, including ground way plate, V-type collet, opposite type movement lead screw and handwheel；
The opposite type movement lead screw include first guiding screw rod and second guiding screw rod, it is described first guiding screw rod one end with
One end of the second guiding screw rod connects in interconnecting piece, the hand of spiral phase of the first guiding screw rod and the second guiding screw rod
Instead；The other end of the first guiding screw rod is arranged in the handwheel；
The bottom of the ground way plate has supporting bar top fixing threaded hole, and the support rod bottom on position and the turntable
Hold fixing threaded hole corresponding；The top of the support rod is connected through a screw thread with the supporting bar top fixing threaded hole；
The V-type collet includes the first collet and the second collet, is arranged on the ground way plate, first collet and the
The clamping end of two collets all has V-type groove structure, and the clamping end of first collet and the second collet is oppositely arranged；It is described
The fixing end of first collet has the first sliding block, is socketed on the first guiding screw rod, the fixing end of second collet has
There is the second sliding block, be socketed on the second guiding screw rod, so that the first collet and second collet move silk with opposite type
The rotation of bar generates synchronous relative motion to grip ionisation chamber.
2. ionisation chamber fixture according to claim 1, which is characterized in that the handwheel rotation drives the first guiding screw rod to press
First direction rotates and the second guiding screw rod is rotated by second direction, and first collet and second collet is driven to generate edge
The axial synchronous relative motion of the opposite type movement lead screw；
The handwheel rotation drives the first guiding screw rod by second direction rotation and the second guiding screw rod is rotated by first direction, drives
Axial direction synchronous of first collet with second collet generation along the opposite type movement lead screw is moved to move backwards；
The first direction and the second direction are opposite direction of rotation.
3. ionisation chamber fixture according to claim 1, which is characterized in that first sliding block and second sliding block are in institute
Interconnecting piece two sides are stated to be symmetrical arranged.
4. ionisation chamber fixture according to claim 1, which is characterized in that the turntable includes fixed part and rotating part,
Fixed mounting hole is offered on the turntable, is arranged in the fixed mounting hole bolt is fixedly mounted, is fixed on institute
It states on rotating part, the turntable is fixed on external testing platform.
5. ionisation chamber fixture according to claim 1, which is characterized in that the ground way plate has guide groove, described
The axial direction of the axial parallel opposite type movement lead screw of guide groove；The bottom end of first collet and the second collet is that cunning is set
Portion is slidably arranged in the guide groove.
6. ionisation chamber fixture according to claim 1, which is characterized in that the geometrical central axis of the V-type collet with it is described
The central axis concentric co-axial of turntable, the axial direction of the support rod are vertical with the upper surface of the V-type collet.
7. ionisation chamber fixture according to claim 1, which is characterized in that the V-type collet is by low-Z element group
At compound-material constitute；The compound-material is the material that the element for the atomic number 13 for being less than aluminium by atomic number forms
Material.
8. ionisation chamber fixture according to claim 7, which is characterized in that the compound of the low-Z element composition
Material includes: polyethylene, organic glass or polytetrafluoroethylene (PTFE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354798.2A CN109959963B (en) | 2019-04-29 | 2019-04-29 | Ionization chamber fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910354798.2A CN109959963B (en) | 2019-04-29 | 2019-04-29 | Ionization chamber fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109959963A true CN109959963A (en) | 2019-07-02 |
| CN109959963B CN109959963B (en) | 2024-01-26 |
Family
ID=67026879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910354798.2A Active CN109959963B (en) | 2019-04-29 | 2019-04-29 | Ionization chamber fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109959963B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4768765A (en) * | 1985-06-28 | 1988-09-06 | Yokogawa Medical Systems, Limited | Jig for arranging electrode plates of an ionization chamber type x-ray detector |
| KR100912279B1 (en) * | 2009-04-07 | 2009-08-17 | 일진방사선 엔지니어링 (주) | Ionization chamber calibration supporter |
| CN104091748A (en) * | 2014-07-09 | 2014-10-08 | 中国计量科学研究院 | Ionization chamber adjusting device |
| WO2016180382A1 (en) * | 2015-05-12 | 2016-11-17 | Advacam S.R.O. | Ionizing radiation detector module |
| CN106548919A (en) * | 2016-10-28 | 2017-03-29 | 中国计量科学研究院 | Ionization chamber detecting system |
| CN206096477U (en) * | 2016-10-28 | 2017-04-12 | 中国计量科学研究院 | Ionization chamber detecting system |
| CN106730413A (en) * | 2016-12-23 | 2017-05-31 | 江苏海明医疗器械有限公司 | A kind of medical accelerator ionisation chamber precision positioning device |
-
2019
- 2019-04-29 CN CN201910354798.2A patent/CN109959963B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4768765A (en) * | 1985-06-28 | 1988-09-06 | Yokogawa Medical Systems, Limited | Jig for arranging electrode plates of an ionization chamber type x-ray detector |
| KR100912279B1 (en) * | 2009-04-07 | 2009-08-17 | 일진방사선 엔지니어링 (주) | Ionization chamber calibration supporter |
| CN104091748A (en) * | 2014-07-09 | 2014-10-08 | 中国计量科学研究院 | Ionization chamber adjusting device |
| WO2016180382A1 (en) * | 2015-05-12 | 2016-11-17 | Advacam S.R.O. | Ionizing radiation detector module |
| CN106548919A (en) * | 2016-10-28 | 2017-03-29 | 中国计量科学研究院 | Ionization chamber detecting system |
| CN206096477U (en) * | 2016-10-28 | 2017-04-12 | 中国计量科学研究院 | Ionization chamber detecting system |
| CN106730413A (en) * | 2016-12-23 | 2017-05-31 | 江苏海明医疗器械有限公司 | A kind of medical accelerator ionisation chamber precision positioning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109959963B (en) | 2024-01-26 |
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