CN110512526B - Auxiliary adjusting device and adjusting method for box girder bottom die axis - Google Patents
Auxiliary adjusting device and adjusting method for box girder bottom die axis Download PDFInfo
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- CN110512526B CN110512526B CN201910798442.8A CN201910798442A CN110512526B CN 110512526 B CN110512526 B CN 110512526B CN 201910798442 A CN201910798442 A CN 201910798442A CN 110512526 B CN110512526 B CN 110512526B
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000004069 differentiation Effects 0.000 claims abstract description 78
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 6
- 238000004904 shortening Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Automatic Assembly (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Abstract
The invention discloses a box girder bottom die axis auxiliary adjusting device and an adjusting method, which are used for auxiliary adjusting the line shape of a box girder bottom die and comprise the following steps: a differentiation ruler, wherein a containing cavity is longitudinally formed in the differentiation ruler, and a centering mark is arranged at the longitudinal center position of the upper surface of the differentiation ruler; the two fixing frames are respectively sleeved at the left end and the right end of the differentiation ruler and can move longitudinally along the differentiation ruler, a first locking piece for fixing the fixing frame and the differentiation ruler is arranged on the fixing frame, and the fixing frame is used for enabling the differentiation ruler to be attached to the bottom die of the box girder; the drawing ruler is accommodated in the accommodating cavity and is provided with a drawing end, and the drawing ruler is drawn out or retracted by the drawing end; the line weighs down, and the line weighs down and sets up in the pull end, and the line weighs down and is used for aligning the reference line, relates to case roof beam die block processing equipment field. The invention has simple integral structure and convenient operation, does not need to use a total station in the whole process, and does not have manual errors caused by repeated adjustment of the position of the prism, thereby shortening the adjustment time and reducing the adjustment errors.
Description
Technical Field
The invention relates to the field of box girder bottom die processing equipment, in particular to an auxiliary adjusting device and an adjusting method for a box girder bottom die axis.
Background
In modern bridge engineering construction, the prefabricated box girder is widely and widely applied by comprehensively considering factors such as geographical conditions, economic cost, construction difficulty and the like, and the quality of the prefabricated box girder directly influences the engineering quality of the whole bridge; the box girder bottom die is a base part of a prefabricated box girder and is formed by welding steel, the accuracy control of the box girder bottom die directly relates to the shape of the box girder, and therefore, the axis of the box girder bottom die needs to be adjusted after the machining is finished to finish the shape adjustment of the bottom die.
The method for adjusting the axis of the bottom die in the prior art is that an independent coordinate system is set through a total station, a prism is arranged on the bottom die, the total station is used for observing for many times, and the position of the bottom die is adjusted to enable the axis of the bottom die to coincide with an x axis or a y axis; the problem is that the total station is used in the whole process of adjustment, the workload is large, the efficiency is low, the prism is erected manually for many times, and a large manual shaking error exists, so that the final position adjustment is inaccurate.
Disclosure of Invention
The invention aims to overcome the defects of the background technology, and provides an auxiliary adjusting device and an adjusting method for the axis of a box girder bottom die, which do not need to use a total station in the whole process and have small manual error.
The invention provides an auxiliary adjusting device for an axis of a box girder bottom die, which is used for auxiliary adjusting the line shape of the box girder bottom die and comprises the following components:
The differentiation ruler is internally provided with a containing cavity along the longitudinal direction of the differentiation ruler, and a centering mark is arranged at the longitudinal center position of the upper surface of the differentiation ruler;
The two fixing frames are respectively sleeved at the left end and the right end of the differentiation ruler and can move along the longitudinal direction of the differentiation ruler, a first locking piece for fixing the fixing frame and the differentiation ruler is arranged on the fixing frames, and the fixing frames are used for enabling the differentiation ruler to be attached to the bottom die of the box girder;
The drawing ruler is accommodated in the accommodating cavity and is provided with a drawing end, and the drawing ruler is drawn out or retracted from the drawing end;
and the wire bob is arranged at the drawing end and used for aligning the reference wire.
On the basis of the technical scheme, the upper surface of the differentiation ruler is longitudinally provided with main scale bars, and the main scale bars are 0 scale at the centering mark and are uniformly distributed at the left end and the right end.
On the basis of the technical scheme, the auxiliary adjusting device further comprises a vernier frame and a prism, wherein the vernier frame is sleeved on the differentiation ruler, the vernier frame is positioned between the two fixed frames, the prism is vertically arranged on the upper surface of the vernier frame, and the mirror surface of the prism is parallel to the transverse direction of the differentiation ruler.
On the basis of the technical scheme, the upper surface of the cursor frame is also provided with a pointer, and the pointing direction of the pointer coincides with the mirror surface direction of the prism.
On the basis of the technical scheme, the upper surface of the differentiation ruler is provided with the connecting groove communicated with the accommodating cavity, the upper surface of the drawing ruler is provided with the connecting rod, and the connecting rod penetrates through the connecting groove and is fixedly connected with the vernier frame.
On the basis of the technical scheme, the cursor frame is further provided with a second locking piece, and the second locking piece is used for fixing the cursor frame and the differentiation ruler.
On the basis of the technical scheme, the upper surface of the drawing ruler is longitudinally provided with the auxiliary scale strips, and the auxiliary scale strips are 0 scale at the drawing end and are uniformly distributed towards the other end of the drawing ruler.
On the basis of the technical scheme, four foot spirals are respectively arranged at four corners of the lower surface of the differentiation ruler, the four foot spirals jointly support the differentiation ruler, and the height of the foot spirals is adjustable; the upper surface of the differentiation ruler is provided with a level ruler.
The invention also provides a box girder bottom die axis auxiliary adjustment method, which comprises the following steps:
a. Providing the auxiliary adjusting device, and drawing a reference line parallel to the theoretical axis of the bottom die of the box girder at a position Amm from the theoretical axis of the bottom die of the box girder;
b. The differentiation ruler is arranged on the box girder bottom die, the positions of the two fixing frames are adjusted, the two fixing frames are respectively attached to the two side edges of the box girder bottom die, the distances between the two fixing frames and the centering mark are equal, and the first locking piece is locked;
c. drawing out the drawing ruler, enabling the line drop to be aligned with the reference line, and measuring the drawn-out length Bmm of the drawing ruler;
d. measuring the distance cm between the centering mark and one end of the differentiation ruler;
e. B+C-Amm, adjusting the bottom die of the box girder to one side of the reference line;
f. And c, adjusting the position of the differentiation ruler on the box girder bottom die along the longitudinal direction of the box girder bottom die, and repeating the steps b-e until the axis adjustment of the box girder bottom die is completed.
On the basis of the technical scheme, the auxiliary adjusting device further comprises a vernier frame and a prism, wherein the vernier frame is sleeved on the differentiation ruler, the vernier frame is positioned between the two fixed frames, the prism is vertically arranged on the upper surface of the vernier frame, and the central axis of the prism is parallel to the transverse direction of the differentiation ruler; the upper surface of the cursor frame is also provided with a pointer, and the mirror surface orientations of the pointer are overlapped;
Between step e and step f, the method further comprises the following steps:
g. the total station is arranged on a theoretical axis of a bottom die of the box girder, and the vernier frame is moved to enable the prism to be positioned at an observation center of the total station;
h. Measuring the distance Dmm of the pointer from the centering mark;
i. adjusting Dmm to one side of the pointer by the bottom die of the box girder;
step f further comprises repeating steps g-i.
Compared with the prior art, the invention has the following advantages:
According to the auxiliary box girder bottom die axis adjusting device, the differentiation rule is arranged to serve as an installation foundation of other parts, the centering mark on the differentiation rule serves as a mark for aligning the actual axis of the box girder bottom die, the drawing rule is arranged to serve as a reference for aligning the theoretical axis of the box girder bottom die, the adjusting amplitude of the box girder bottom die is calculated through the length drawn out by the drawing rule, the whole structure of the device is simple, the auxiliary adjusting operation is convenient, a total station is not needed in the whole process, manual errors caused by repeated prism position adjustment are avoided, the adjusting time is shortened, and the adjusting errors are reduced.
Drawings
FIG. 1 is a top plan view of a box girder bottom die axis auxiliary adjustment device according to an embodiment of the present invention;
FIG. 2 is a front view of the structure of the auxiliary adjusting device for the bottom die axis of the box girder according to the embodiment of the present invention;
FIG. 3 is a left side view of the structure of the auxiliary adjusting device for the bottom die axis of the box girder according to the embodiment of the invention;
Fig. 4 is a schematic view of a usage state of the auxiliary adjusting device for the axis of the bottom die of the box girder according to the embodiment of the invention.
Reference numerals: 1-differentiation rule, 11-accommodating cavity, 12-centering mark, 13-main scale bar, 14-connecting groove, 15-foot screw, 16-level bar, 2-fixed frame, 21-first locking piece, 3-drawing rule, 31-drawing end, 32-auxiliary scale bar, 4-line weight, 5-vernier frame, 51-prism, 52-pointer, 53-second locking piece and 6-box girder bottom die.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings and specific examples.
Referring to fig. 1 to 3, an embodiment of the present invention provides a box girder bottom die axis auxiliary adjustment device for auxiliary adjustment of the line shape of a box girder bottom die 6, including: differentiation rule 1, two fixed frames 2, pull rule 3, line weight 4.
A containing cavity 11 is formed in the differentiation ruler 1 along the longitudinal direction of the differentiation ruler 1, and a centering mark 12 is arranged at the longitudinal center position of the upper surface of the differentiation ruler 1; the two fixing frames 2 are respectively sleeved at the left end and the right end of the differentiation ruler 1 and can move along the longitudinal direction of the differentiation ruler 1, a first locking piece 21 for fixing the fixing frame 2 and the differentiation ruler 1 is arranged on the fixing frame 2, and the fixing frame 2 is used for enabling the differentiation ruler 1 to be attached to the box girder bottom die 6; the drawing ruler 3 is accommodated in the accommodating cavity 11, the drawing ruler 3 is provided with a drawing end 31, and the drawing ruler 3 is drawn out or retracted by the drawing end 31; the wire bob 4 is arranged at the drawing end 31, and the wire bob 4 is used for aligning a reference wire.
According to the auxiliary box girder bottom die axis adjusting device, the differentiation rule 1 is arranged to serve as an installation foundation of other parts, the centering mark 12 on the differentiation rule 1 serves as a mark for aligning the actual axis of the box girder bottom die 6, the drawing rule 3 serves as a reference for aligning the theoretical axis of the box girder bottom die 6, the adjusting amplitude of the box girder bottom die 6 is calculated through the length drawn out by the drawing rule 3, the whole structure is simple, the auxiliary adjusting operation is convenient, a total station is not needed in the whole process, and the artificial error caused by repeated adjustment of the position of the prism 51 is avoided, so that the adjusting time is shortened, and the adjusting error is reduced.
In this embodiment, preferably, a main scale bar 13 is disposed on the upper surface of the differentiation ruler 1 along the longitudinal direction thereof, and the main scale bar 13 is 0 scale on the centering mark 12 and is uniformly distributed at the left and right ends; the main scale bar 13 arranged on the differentiation ruler 1 can be used as a scale indication for the movement of the fixed frame 2 on the differentiation ruler 1, so that the centering marks 12 can be conveniently aligned with the actual axis of the Ji Xiangliang bottom die 6, and the subsequent box girder bottom die 6 adjustment work can be smoothly performed.
In this embodiment, preferably, the auxiliary adjusting device further includes a cursor frame 5 and a prism 51, the cursor frame 5 is sleeved on the differentiation ruler 1, the cursor frame 5 is located between the two fixed frames 2, the prism 51 is vertically disposed on the upper surface of the cursor frame 5, and the mirror surface of the prism 51 is parallel to the lateral direction of the differentiation ruler 1; the vernier frame 5 and the prism 51 are arranged, the prism 51 can move along the longitudinal direction on the differentiation ruler 1 along with the vernier frame 5, the mirror surface of the prism 51 is parallel to the transverse line of the differentiation ruler 1, and the prism 51 is aligned by a total station for the follow-up process, so that the axis fine adjustment of the box girder bottom die 6 is performed; further, a pointer 52 is further disposed on the upper surface of the cursor frame 5, and the pointing direction of the pointer 52 coincides with the mirror surface direction of the prism 51; the pointer 52 is arranged to be directed to coincide with the mirror surface direction of the prism 51, so that the position of the prism 51 is conveniently indicated on the differentiation ruler 1, and after the prism 51 is aligned by adopting the total station, the pointer 52 can be directed to the position required to be aligned by adjusting the erection position of the total station.
In this embodiment, preferably, a connection groove 14 that is communicated with the accommodating cavity 11 is formed on the upper surface of the differentiation ruler 1, and a connecting rod is disposed on the upper surface of the drawing ruler 3, and the connecting rod passes through the connection groove 14 and is fixedly connected with the cursor frame 5; namely, the cursor frame 5 can move along with the movement of the drawing ruler 3 and drive other parts on the cursor frame 5 to move, so that the position of the cursor frame on the differentiation ruler 1 can be conveniently adjusted; further, a second locking member 53 is further disposed on the cursor frame 5, and the second locking member 53 is used for fixing the cursor frame 5 and the differentiation ruler 1; after the cursor frame 5 and the differentiation ruler 1 are fixed by the second locking member 53, the drawing ruler 3 and the prism 51 on the cursor frame 5 are also fixed, so that subsequent measurement, adjustment and the like are facilitated.
In this embodiment, preferably, a sub-scale bar 32 is disposed on the upper surface of the drawing ruler 3 along the longitudinal direction thereof, and the sub-scale bar 32 is 0 scale at the drawing end 31 and is uniformly distributed towards the other end of the drawing ruler 3; the auxiliary scale bar 32 on the drawing ruler 3 can be used as a scale indication when the drawing ruler 3 is drawn out, so that the length of the drawing ruler 3 drawn out can be conveniently measured.
In this embodiment, preferably, four foot spirals 15 are respectively disposed on four corners of the lower surface of the differentiation ruler 1, the four foot spirals 15 support the differentiation ruler 1 together, and the height of the foot spirals 15 is adjustable; the upper surface of the differentiation ruler 1 is provided with a horizontal ruler 16; the foot spirals 15 at four corners can be respectively adjusted in height, and the leveling bars 16 are matched to ensure that the adjusting device is kept in a horizontal state before use, and the accuracy of the measuring result is ensured, so that the axis adjustment of the box girder bottom die 6 is accurately carried out.
Referring to fig. 4, the embodiment of the invention further provides a box girder bottom die axis auxiliary adjustment method, which comprises the following steps:
a. Providing the auxiliary adjusting device, and drawing a reference line parallel to the theoretical axis of the box girder bottom die 6 at a position Amm from the theoretical axis of the box girder bottom die 6;
b. the differentiation ruler 1 is arranged on the box girder bottom die 6, the positions of the two fixed frames 2 are adjusted, the two fixed frames 2 are respectively attached to the two side edges of the box girder bottom die 6, the distances between the two fixed frames 2 and the centering mark 12 are equal, and the first locking piece 21 is locked;
c. Drawing out the drawing ruler 3, enabling the line drop 4 to be aligned with a reference line, and measuring the drawn-out length Bmm of the drawing ruler 3;
d. measuring the distance cm of the centering mark 12 from one end of the differentiation ruler 1;
e. B+C-Amm is adjusted to one side of the reference line by the box girder bottom die 6;
f. and b, adjusting the position of the differentiation ruler 1 on the box girder bottom die 6 along the longitudinal direction of the box girder bottom die 6, and repeating the steps b-e until the axis adjustment of the box girder bottom die 6 is completed.
The process is that the axis of the box girder bottom die 6 is roughly adjusted, the two fixed frames 2 are respectively attached to the two side edges of the box girder bottom die 6, the distances between the two fixed frames 2 and the centering mark 12 are equal, and the position of the centering mark 12 is the actual axis of the box girder bottom die 6; the sum of the length Bmm drawn by the drawing ruler 3 and the distance cm between the centering mark 12 and one end of the differentiating ruler 1 is the distance between the actual axis of the box girder bottom die 6 and the reference line, the distance between the theoretical axis of the box girder bottom die 6 and the reference line is the difference between the actual axis and the theoretical axis, and the box girder bottom die 6 can be adjusted to the reference line side according to the difference, so that coarse adjustment of the axis of the box girder bottom die 6 can be completed, the reference line is used as the reference for adjustment in the process, a total station is not needed, and the manual error caused by repeated adjustment of the prism position does not exist.
Between step e and step f, the method further comprises the following steps:
g. The total station is arranged on the theoretical axis of the box girder bottom die 6, and the vernier frame 5 is moved to enable the prism 51 to be positioned at the observation center of the total station;
h. Measuring the distance Dmm of the pointer 52 from the centering mark 12;
i. Adjusting Dmm towards the pointer 52 side by the box girder bottom die 6;
step f further comprises repeating steps g-i.
The process is fine adjustment of the axis of the box girder bottom die 6, the total station is arranged on the theoretical axis of the box girder bottom die 6, the cursor frame 5 is moved to enable the prism 51 to be located in the observation center of the total station, the position pointed by the pointer 52 is the position of the theoretical axis of the box girder bottom die 6, the position of the centering mark 12 is still the position of the actual axis of the box girder bottom die 6, the distance Dmm between the pointer 52 and the centering mark 12 is the difference between the actual axis and the theoretical axis, the box girder bottom die 6 is adjusted to the pointer side according to the difference, fine adjustment of the box girder bottom die 6 can be completed, the process only needs to be carried out once by using the total station, the total station is not needed to be used in the whole process, the prism 51 moves along with the cursor frame, the prism 51 does not need to be manually erected for many times, and the manual shaking error is reduced.
Various modifications and variations of the embodiments of the present invention may be made by those skilled in the art, and are within the scope of the appended claims and their equivalents.
What is not described in detail in the specification is prior art known to those skilled in the art.
Claims (7)
1. An auxiliary adjustment device for an axis of a box girder bottom die, which is used for auxiliary adjustment of the line shape of the box girder bottom die (6), is characterized by comprising:
A differentiation ruler (1), wherein a containing cavity (11) is formed in the differentiation ruler (1) along the longitudinal direction of the differentiation ruler, and a centering mark (12) is arranged at the longitudinal center position of the upper surface of the differentiation ruler (1);
The two fixing frames (2) are respectively sleeved at the left end and the right end of the differentiation ruler (1) and can move along the longitudinal direction of the differentiation ruler (1), a first locking piece (21) for fixing the fixing frame (2) and the differentiation ruler (1) is arranged on the fixing frame (2), and the fixing frame (2) is used for enabling the differentiation ruler (1) to be attached to the box girder bottom die (6);
The drawing ruler (3) is accommodated in the accommodating cavity (11), the drawing ruler (3) is provided with a drawing end (31), and the drawing ruler (3) is drawn out or retracted by the drawing end (31);
the wire sinker (4), the wire sinker (4) is arranged at the drawing end (31), and the wire sinker (4) is used for aligning a reference wire;
The upper surface of the differentiation ruler (1) is longitudinally provided with a main scale bar (13), and the main scale bar (13) takes the position of the centering mark (12) as 0 scale and is uniformly distributed at the left end and the right end;
The upper surface of the drawing ruler (3) is longitudinally provided with auxiliary scale strips (32), and the auxiliary scale strips (32) are 0 scale at the drawing end (31) and are uniformly distributed towards the other end of the drawing ruler (3);
The auxiliary adjusting device further comprises a cursor frame (5) and a prism (51), wherein the cursor frame (5) is sleeved on the differentiation ruler (1), the cursor frame (5) is located between the two fixed frames (2), the prism (51) is vertically arranged on the upper surface of the cursor frame (5), and the mirror surface of the prism (51) is parallel to the transverse direction of the differentiation ruler (1).
2. The auxiliary box girder bottom die axis adjusting device as claimed in claim 1, wherein: the upper surface of the cursor frame (5) is also provided with a pointer (52), and the pointing direction of the pointer (52) coincides with the mirror surface direction of the prism (51).
3. The auxiliary box girder bottom die axis adjusting device as claimed in claim 1, wherein: the upper surface of differentiation chi (1) seted up with hold spread groove (14) of chamber (11) intercommunication, the upper surface of pull chi (3) is provided with the connecting rod, the connecting rod pass spread groove (14) and with cursor frame (5) fixed connection.
4. A box girder bottom die axis auxiliary adjusting device as claimed in claim 3, wherein: the cursor frame (5) is also provided with a second locking piece (53), and the second locking piece (53) is used for fixing the cursor frame (5) and the differentiation ruler (1).
5. The auxiliary box girder bottom die axis adjusting device as claimed in claim 1, wherein: four foot spirals (15) are respectively arranged at four corners of the lower surface of the differentiation ruler (1), the differentiation ruler (1) is supported by the four foot spirals (15) together, and the height of the foot spirals (15) is adjustable; the upper surface of the differentiation ruler (1) is provided with a horizontal ruler (16).
6. The auxiliary adjustment method for the box girder bottom die axis is characterized by comprising the following steps of:
a. Providing an auxiliary adjusting device according to claim 1, and drawing a reference line parallel to the theoretical axis of the bottom die (6) of the box girder at a position Amm from the theoretical axis of the bottom die (6) of the box girder;
b. The differentiation ruler (1) is arranged on the box girder bottom die (6), the positions of the two fixing frames (2) are adjusted, the two fixing frames (2) are respectively attached to the two side edges of the box girder bottom die (6), the distances between the two fixing frames (2) and the centering mark (12) are equal, and the first locking piece (21) is locked;
c. drawing out the drawing ruler (3), enabling the line drop (4) to be aligned with the reference line, and measuring the drawn-out length Bmm of the drawing ruler (3);
d. measuring the distance cm of the centering mark (12) from one end of the differentiation ruler (1);
e. B+C-Amm is adjusted to one side of the reference line by the box girder bottom die (6);
f. And b, adjusting the position of the differentiation ruler (1) on the box girder bottom die (6) along the longitudinal direction of the box girder bottom die (6), and repeating the steps b-e until the axis adjustment of the box girder bottom die (6) is completed.
7. The auxiliary adjustment method for the bottom die axis of the box girder according to claim 6, wherein the auxiliary adjustment device further comprises a cursor frame (5) and a prism (51), the cursor frame (5) is sleeved on the differentiation ruler (1), the cursor frame (5) is positioned between the two fixed frames (2), the prism (51) is vertically arranged on the upper surface of the cursor frame (5), and the central axis of the prism (51) is parallel to the transverse direction of the differentiation ruler (1); the upper surface of the cursor frame (5) is also provided with a pointer (52), and the pointing direction of the pointer (52) coincides with the mirror surface direction of the prism (51);
Between step e and step f, the method further comprises the following steps:
g. The total station is arranged on the theoretical axis of a box girder bottom die (6), and a cursor frame (5) is moved to enable a prism (51) to be positioned at the observation center of the total station;
h. measuring the distance Dmm of the pointer (52) from the centering mark (12);
i. adjusting Dmm towards the pointer (52) by the box girder bottom die (6);
step f further comprises repeating steps g-i.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910798442.8A CN110512526B (en) | 2019-08-27 | 2019-08-27 | Auxiliary adjusting device and adjusting method for box girder bottom die axis |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910798442.8A CN110512526B (en) | 2019-08-27 | 2019-08-27 | Auxiliary adjusting device and adjusting method for box girder bottom die axis |
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| CN110512526A CN110512526A (en) | 2019-11-29 |
| CN110512526B true CN110512526B (en) | 2024-06-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN211057619U (en) * | 2019-08-27 | 2020-07-21 | 中铁大桥局第九工程有限公司 | Auxiliary adjusting device for box girder bottom die axis |
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