CN201837330U - Precision measurement device for movement positions of blades of multi-blade grating - Google Patents
Precision measurement device for movement positions of blades of multi-blade grating Download PDFInfo
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- CN201837330U CN201837330U CN2010205687296U CN201020568729U CN201837330U CN 201837330 U CN201837330 U CN 201837330U CN 2010205687296 U CN2010205687296 U CN 2010205687296U CN 201020568729 U CN201020568729 U CN 201020568729U CN 201837330 U CN201837330 U CN 201837330U
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- guide rail
- slide
- slide bar
- measurement
- positioning
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Abstract
The utility model relates to a precision measurement device for movement positions of blades of a multi-blade grating, which relates to measurement technology and comprises a measurement device positioning base, a fixed guide rail, a moving guide rail, a slide rod and a slide seat. The fixed guide rail and the moving guide rail form a moving guide rail pair, the slide rod is in sliding fit with the slide seat, a front positioning baffle block and a rear positioning baffle block are mounted on the slide rod, a slide rod positioning handle and a guide rail positioning handle are disposed on the slide seat, and a dial gauge is mounted at the end of the slide rod. The precision measurement device can realize movement positioning measurement and displacement measurement for dozens of blades of the multi-blade grating and accumulated error measurement of screw pitches of screw rods used for driving the blades by the aid of simple operation and driving and the baffle blocks for positioning, and realizes accurate and speedy measurement. In addition, the dial gauge realizes more visual and easier data acquisition.
Description
Technical field
The utility model relates to measuring technique.
Background technology
The blade movement precision of multi-leaf optical grating is one of its most important characteristic; accuracy (conformal degree) by the formed irradiation field of blade movement; the radiation exposure shape and the dosage that are directly connected to patient's focus zone absorb size; more be directly connected to protection to greatest extent, reach the Expected Results of tumour radiotherapy human normal tissue and sensitive organization.Therefore in the manufacturing of multi-leaf optical grating with use link, the measurement of blade movement accuracy value is just seemed particularly important.
Owing to blade quantity in the multi-leaf optical grating many (tens nearly hundred), gauge is little and the blade front end has been made arc for reducing penumbra, brought difficulty for the kinematic accuracy measurement of blade, waste time and energy with normal conventional method and general gage measuring, be difficult to obtain fast accurate leaf position data.Secondly, manufacturing field at multi-leaf optical grating, for improving the kinematic accuracy of blade, must carry out The compensation of pitch error to the screw rod that drives each sheet blade, particularly in the batch process of multi-leaf optical grating, how accurately to obtain the cumulative pitch error offset fast, be the key of blade high precision operation location.
The utility model content
Technical problem to be solved in the utility model is, provide a kind of economy, fast, the multi-leaf optical grating blade movement positional precision measurement mechanism of high precision, easy operating, with satisfy multi-leaf optical grating use and make in to the simple and easy quick high accuracy measurement requirement of blade movement site error, solve the problem of multi-leaf optical grating blade movement precision measure difficulty.
The technical scheme that the utility model solve the technical problem employing is, multi-leaf optical grating blade movement positional precision measurement mechanism, the fixed guide, the moving guide rail that comprise measurement mechanism positioning base and formation moving guide rail pair, slide bar that formation is slidingly matched and slide, prelocalization piece and back locating piece are installed on the slide bar, slide is provided with slide bar position fixing knob, guide rail position fixing knob, and the termination of slide bar is provided with the dial gauge mounting structure.
Described moving guide rail pair is the dovetail guide type.Slide bar position fixing knob and guide rail position fixing knob are arranged on the slide by threaded through hole.
Further, also comprise dial gauge, dial gauge is arranged on the end of slide bar by the open flume type clamping structure.
The beneficial effects of the utility model are, move and the block location by simple operations, can carry out motion positions measurement, displacement measurement to tens blades of multi-leaf optical grating respectively and to the accumulative pitch error measurement of vane drive screw rod, realize measuring accurately fast.The use of percentage gauge outfit, it is easily directly perceived more that data are obtained.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is the utility model example structure synoptic diagram (side-looking).
Fig. 2 is a vertical view of the present utility model.
Fig. 3, the 4th, slide bar end percentage gauge outfit mounting structure synoptic diagram.
Fig. 5 is the utility model embodiment schematic three dimensional views.
Number in the figure: 1, base 2, fixed guide 3, moving guide rail
4, slide bar 5, slide 6, prelocalization block 7, back position block
8, guide rail position fixing knob 9, slide bar position fixing knob 10, dial gauge.
Embodiment
Referring to Fig. 1～5.
Multi-leaf optical grating blade movement positional precision measurement mechanism, first guide rail 2, second guide rail 3 that comprise measurement mechanism positioning base 1 and formation moving guide rail pair, slide bar 4 that formation is slidingly matched and slide 5, prelocalization block 6 and back position block 7 are installed on the slide bar 4, and the termination of slide bar 4 is equipped with dial gauge 10.Described moving guide rail pair is the dovetail guide type.Slide bar position fixing knob 8 and guide rail position fixing knob 9 are arranged on the slide 5 by threaded through hole.
Fixed guide 2 is set on the base 1 of the present utility model also is rigidly connected with it, the slide 5 that is being rigidly connected on the moving guide rail 3, slide bar 4 can move forward and backward with respect to slide 5, and its moving range is determined by former and later two position blocks 6,7 adjustment that are enclosed within on the slide bar.Be respectively arranged with locking position handle 8,9 on moving guide rail 3 and the slide 5, in measurement, slide bar 4 and guide rail 3 done the relevant position locking.
The end of slide bar is the open flume type clamping structure, can do up and down and the corner adjustment the percentage gauge outfit 10 that is installed on the slide bar fast, to be convenient for measuring and reading.
Instructions has clearly illustrated principle of the present utility model and necessary technology details, and those of ordinary skill can be implemented according to instructions.Interest field of the present utility model is not limited to the disclosed embodiment of instructions, and the embodiment of other changes also belongs to interest field of the present utility model.
Claims (4)
1. multi-leaf optical grating blade movement positional precision measurement mechanism, it is characterized in that, the fixed guide (2), the moving guide rail (3) that comprise measurement mechanism positioning base (1) and formation moving guide rail pair, slide bar that formation is slidingly matched (4) and slide (5), prelocalization block (6) and back position block (7) are installed on the slide bar (4), slide (5) is provided with slide bar position fixing knob (8), guide rail position fixing knob (9), and the termination of slide bar (4) is provided with the dial gauge mounting structure.
2. multi-leaf optical grating blade movement positional precision measurement mechanism as claimed in claim 1 is characterized in that, described moving guide rail pair is the dovetail guide type.
3. multi-leaf optical grating blade movement positional precision measurement mechanism as claimed in claim 1 is characterized in that slide bar position fixing knob (8) and guide rail position fixing knob (9) are arranged on the slide (5) by threaded through hole.
4. multi-leaf optical grating blade movement positional precision measurement mechanism as claimed in claim 1 is characterized in that also comprise dial gauge (10), dial gauge (10) is arranged on the end of slide bar by the open flume type clamping structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205687296U CN201837330U (en) | 2010-10-20 | 2010-10-20 | Precision measurement device for movement positions of blades of multi-blade grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205687296U CN201837330U (en) | 2010-10-20 | 2010-10-20 | Precision measurement device for movement positions of blades of multi-blade grating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201837330U true CN201837330U (en) | 2011-05-18 |
Family
ID=44007440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205687296U Expired - Lifetime CN201837330U (en) | 2010-10-20 | 2010-10-20 | Precision measurement device for movement positions of blades of multi-blade grating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201837330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003925A (en) * | 2010-10-20 | 2011-04-06 | 成都奇林科技有限责任公司 | Motion position precision measuring device of multi-blade grating blades |
-
2010
- 2010-10-20 CN CN2010205687296U patent/CN201837330U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003925A (en) * | 2010-10-20 | 2011-04-06 | 成都奇林科技有限责任公司 | Motion position precision measuring device of multi-blade grating blades |
| CN102003925B (en) * | 2010-10-20 | 2012-09-05 | 成都奇林科技有限责任公司 | Motion position precision measuring device of multi-blade grating blades |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110518 Effective date of abandoning: 20120905 |