Wiki source code of Load frame

Version 22.1 by fwilde on 2023/10/05 18:56
Show last authors
1
2
3 {{toc/}}
4
5 = {{id name="Loadframe-Overview"/}}Overview =
6
7 [[image:attach:DSC_0006.JPG||width="400"]]
8
9 * Forces up to 1 kN (both pushing or pulling)
10 * Load cells 20N, 50N, 100N, 200N, 500N and 1000N available
11 * Fully integrated into control and logging system
12
13 = {{id name="Loadframe-Actuator"/}}Actuator =
14
15 [[image:attach:DSC_0020.JPG||height="250"]][[image:attach:DSC_0021.JPG||height="250"]]
16
17 (% class="wrapped" %)
18 |=(((
19 PIMicos MA-35
20 )))|=(((
21 \\
22 )))
23 |(((
24 max. load (in travel direction)
25 )))|(((
26 1000N
27 )))
28 |(((
29 Travel range
30 )))|(((
31 ? mm
32 )))
33 |(((
34 min speed
35 )))|(((
36 ? µm/s
37 )))
38 |(((
39 max. speed
40 )))|(((
41 ? µm/s
42 )))
43 |(((
44 Step width
45 )))|(((
46 ? µm
47 )))
48 |(((
49 fine pitch hread
50 )))|(((
51 (% class="content-wrapper" %)
52 (((
53 M8 x 0.5 ???
54 )))
55 )))
56
57 = {{id name="Loadframe-Loadcells"/}}Load cells =
58
59 Two types of load cells are available with different diameters with the following force range
60
61 (% class="relative-table wrapped" style="width: 23.2261%;" %)
62 |(% colspan="2" %)(((
63 (% class="content-wrapper" %)
64 (((
65 [[image:attach:DSC_0031.JPG||align="center" height="250"]]
66 )))
67 )))
68 |=(% style="text-align: center;" %)(((
69 large
70 )))|=(% style="text-align: center;" %)(((
71 small
72 )))
73 |(% style="text-align: center;" %)(((
74 20 N
75 )))|(% style="text-align: center;" %)(((
76 -
77 )))
78 |(% style="text-align: center;" %)(((
79 50 N
80 )))|(% style="text-align: center;" %)(((
81 -
82 )))
83 |(% style="text-align: center;" %)(((
84 100 N
85 )))|(% style="text-align: center;" %)(((
86 -
87 )))
88 |(% style="text-align: center;" %)(((
89 200 N
90 )))|(% style="text-align: center;" %)(((
91 200 N
92 )))
93 |(% style="text-align: center;" %)(((
94 -
95 )))|(% style="text-align: center;" %)(((
96 500 N
97 )))
98 |(% style="text-align: center;" %)(((
99 -
100 )))|(% style="text-align: center;" %)(((
101 1000 N
102 )))
103 |(((
104 thread: M8 (max  len 15 mm)
105 )))|(((
106 thread: M4 (max len 5 mm)
107 )))
108
109 = {{id name="Loadframe-Loadframeassembly"/}}Load frame assembly =
110
111 Considering different applications (high forces, low forces, pushing or pulling) the assembly follows slightly different paths. Generally, assembling the load frame can be broken down into these steps:
112
113 * Install a base plate on the rotation stage (use spacers, decide which plate to use)
114 * Mount load cell on base plate with desired pin or clamp (depending on push or pull experiments)
115 * Mount sample tube (choose the tube type according to your application)
116 * Mount pusher
117
118 == {{id name="Loadframe-Largeloadcellinstallation"/}}Large load cell installation ==
119
120 For the large load cell a specific base plate has to be used
121
122 (% class="wrapped" %)
123 |(% style="text-align: center;" %)(((
124 (% class="content-wrapper" %)
125 (((
126 [[image:attach:DSC_0032.JPG||alt="Base plate with load cell" title="Base plate with load cell" height="250"]]
127 )))
128 )))|(% style="text-align: center;" %)(((
129 (% class="content-wrapper" %)
130 (((
131 [[image:attach:DSC_0033.JPG||height="250"]]
132 )))
133 )))
134 |(% style="text-align: center;" %)(((
135 Base plate with load cell
136 )))|(% style="text-align: center;" %)(((
137 Load cell with pin used for pulling
138 )))
139
140 Mount bridge and guide - there are two different types of tube, so assembly depends on your choice of tube:
141
142 === {{id name="Loadframe-Tubewiththreadring"/}}Tube with thread ring ===
143
144 (% class="wrapped" %)
145 |(% style="text-align: center;" %)(((
146 (% class="content-wrapper" %)
147 (((
148 [[image:attach:DSC_0034.JPG||height="250"]]
149 )))
150 )))|(% style="text-align: center;" %)(((
151 (% class="content-wrapper" %)
152 (((
153 [[image:attach:DSC_0035.JPG||height="250"]]
154 )))
155 )))|(% style="text-align: center;" %)(((
156 (% class="content-wrapper" %)
157 (((
158 [[image:attach:DSC_0036.JPG||height="250"]]
159 )))
160 )))
161 |(% style="text-align: center;" %)(((
162 Bridge
163 )))|(% style="text-align: center;" %)(((
164 Brigde and pin guide
165 )))|(% style="text-align: center;" %)(((
166 Tube with thread ring
167 )))
168
169 === {{id name="Loadframe-Tubewithinternalthread"/}}Tube with internal thread ===
170
171 (% class="wrapped" %)
172 |(% style="text-align: center;" %)(((
173 (% class="content-wrapper" %)
174 (((
175 [[image:attach:DSC_0034.JPG||height="250"]]
176 )))
177 )))|(% style="text-align: center;" %)(((
178 (% class="content-wrapper" %)
179 (((
180 [[image:attach:DSC_0037.JPG||thumbnail="true" height="250"]]
181 )))
182 )))|(% style="text-align: center;" %)(((
183 (% class="content-wrapper" %)
184 (((
185 [[image:attach:DSC_0038.JPG||height="250"]]
186 )))
187 )))
188 |(% style="text-align: center;" %)(((
189 Bridge
190 )))|(% style="text-align: center;" %)(((
191 Bridge and pin guide
192 )))|(% style="text-align: center;" %)(((
193 Tube with internal thread
194 )))
195
196 == {{id name="Loadframe-Smallloadcellinstallation"/}}Small load cell installation ==
197
198 For the small load cell a specific base plate has to be used
199
200 (% class="wrapped" %)
201 |(% style="text-align: center;" %)(((
202 (% class="content-wrapper" %)
203 (((
204 [[image:attach:DSC_0039.JPG||height="250"]]
205 )))
206 )))|(% style="text-align: center;" %)(((
207 (% class="content-wrapper" %)
208 (((
209 [[image:attach:DSC_0040.JPG||height="250"]]
210 )))
211 )))
212 |(% style="text-align: center;" %)(((
213 Base plate with load cell
214 )))|(% style="text-align: center;" %)(((
215 Load cell with pin used for pulling
216 )))
217
218 Mount pin guide and bridge - there are two different types of tube, so assembly depends on your choice of tube:
219
220 === {{id name="Loadframe-Tubewiththreadring"/}}Tube with thread ring ===
221
222 (% class="wrapped" %)
223 |(((
224 (% class="content-wrapper" %)
225 (((
226 [[image:attach:DSC_0041.JPG||height="250"]]
227 )))
228 )))|(((
229 (% class="content-wrapper" %)
230 (((
231 [[image:attach:DSC_0042.JPG||height="250"]]
232 )))
233 )))
234 |(((
235 Pin guide, no bridge necessary
236 )))|(((
237 Tube with thread ring
238 )))
239
240 === {{id name="Loadframe-Tubewithinternalthread"/}}Tube with internal thread ===
241
242 (% class="wrapped" %)
243 |(% style="text-align: center;" %)(((
244 (% class="content-wrapper" %)
245 (((
246 [[image:attach:DSC_0043.JPG||height="250"]]
247 )))
248 )))|(% style="text-align: center;" %)(((
249 (% class="content-wrapper" %)
250 (((
251 [[image:attach:DSC_0044.JPG||height="250"]]
252 )))
253 )))|(% style="text-align: center;" %)(((
254 (% class="content-wrapper" %)
255 (((
256 [[image:attach:DSC_0045.JPG||height="250"]]
257 )))
258 )))|(% style="text-align: center;" %)(((
259 (% class="content-wrapper" %)
260 (((
261 [[image:attach:DSC_0046.JPG||height="250"]]
262 )))
263 )))
264 |(% style="text-align: center;" %)(((
265 Pin guide
266 )))|(% style="text-align: center;" %)(((
267 Bridge
268 )))|(% style="text-align: center;" %)(((
269 Optionally: insert push pin
270 )))|(% style="text-align: center;" %)(((
271 Tube with internal thread
272 )))
273
274 = {{id name="Loadframe-Tubes"/}}Tubes =
275
276 {{info title="Tubes"}}
277 There are different tubes available at the beamline. Should the tube be unsuitable for your sample, a new tube can be manufactured. Please contact the beamline staff well in advance of your beamtime.
278 {{/info}}
279
280 (% class="wrapped" %)
281 |(% style="text-align: center;" %)(((
282 (% class="content-wrapper" %)
283 (((
284 [[image:attach:DSC_0028.JPG||height="250"]]
285 )))
286 )))
287 |(% style="text-align: center;" %)(((
288 Different Tubes with lengths of ~~80 mm and 140 mm
289 )))
290
291 = {{id name="Loadframe-Samplemounting"/}}Sample mounting =
292
293 {{info title="Pins and clamps"}}
294 Depending on your application, sample installation may vary. There are a selection of pushing pins and pulling clamps available at the beamline which will be presented in this section. Nevertheless these pins or clamps may be unsuitable for your sample. In this case a suitable pin or clamp can be manufactured. Please contact the beamline staff well in advance of your beamtime.
295 {{/info}}
296
297 (% class="wrapped" %)
298 |=(% colspan="2" %)(((
299 Pushing
300 )))|=(% colspan="2" %)(((
301 Pulling
302 )))
303 |(((
304 Bottom push pin
305 )))|(((
306 (% class="content-wrapper" %)
307 (((
308 [[image:attach:DSC_0045.JPG||height="250"]]
309 )))
310 )))|(((
311 Bottom pull thread
312 )))|(((
313 (% class="content-wrapper" %)
314 (((
315 [[image:attach:DSC_0041.JPG||height="250"]]
316 )))
317 )))
318 |(((
319 Top push pin
320 )))|(((
321 (% class="content-wrapper" %)
322 (((
323 [[image:attach:DSC_0047.JPG||height="250"]]
324 )))
325 )))|(((
326 Principle of pull installation
327 )))|(((
328 (% class="content-wrapper" %)
329 (((
330 [[image:attach:DSC_0049.JPG||height="250"]]
331 )))
332 )))
333 |(((
334 Top push pin
335 )))|(((
336 (% class="content-wrapper" %)
337 (((
338 [[image:attach:DSC_0048.JPG||height="250"]]
339 )))
340 )))|(((
341 Pull clamps for low forces
342 )))|(((
343 (% class="content-wrapper" %)
344 (((
345 [[image:attach:DSC_0050.JPG||thumbnail="true" height="250"]]
346 )))
347 )))
348
349 = {{id name="Loadframe-Reference"/}}Reference =
350
351 Moosmann et al. "A load frame for in situ tomography at PETRA III", Proc. SPIE 11113, Developments in X-Ray Tomography XII, 1111318 (2019); [[https:~~/~~/doi.org/10.1117/12.2530445>>url:https://doi.org/10.1117/12.2530445||rel="nofollow" shape="rect"]]
352
353 \\