CN111852050B - Steel structure ball joint positioning auxiliary device and positioning method - Google Patents
Steel structure ball joint positioning auxiliary device and positioning method Download PDFInfo
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- CN111852050B CN111852050B CN202010781421.8A CN202010781421A CN111852050B CN 111852050 B CN111852050 B CN 111852050B CN 202010781421 A CN202010781421 A CN 202010781421A CN 111852050 B CN111852050 B CN 111852050B
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- ball joint
- lifting cylinder
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- supporting
- positioning
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
- E04G21/185—Means for positioning building parts or elements for anchoring elements or elements to be incorporated in the structure
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a steel structure ball joint positioning auxiliary device and a positioning method, wherein the positioning auxiliary device comprises: the bottom of the support body is provided with a positioning block; the lifting cylinder is arranged at the upper end of the supporting body, a groove for placing a ball joint is formed in the top opening of the lifting cylinder, a supporting plate capable of moving up and down is arranged in the lifting cylinder, an elastic piece is arranged between the supporting plate and the bottom wall of the lifting cylinder, when the ball joint is placed on the groove, the bottom surface of the ball joint presses the supporting plate downwards, an indicating plate penetrating through the side wall of the lifting cylinder and extending out of the lifting cylinder is fixedly arranged on one side of the supporting plate, and a sliding groove for the indicating plate to move up and down is formed in the side wall of the lifting cylinder; and the telescopic device is used for adjusting the height of the lifting cylinder and is connected with the supporting body and the lifting cylinder. The invention can accurately position the ball joint to the design coordinate position.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a steel structure ball joint positioning auxiliary device and a positioning method.
Background
To ball joint in the steel construction in the location, because ball joint size is great, can shelter from the coordinate mark point when placing at design assigned position, lead to the error that can't accurate location and cause to the influence is pour the construction effect.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a steel structure ball joint positioning auxiliary device and a positioning method, which can accurately position to a design coordinate and can adjust the height of a ball joint.
In order to achieve the purpose, the invention adopts the technical scheme that: a steel structure ball joint positioning assistance device, comprising:
the bottom of the support body is provided with a positioning block;
the lifting cylinder is arranged at the upper end of the supporting body, a groove for placing a ball joint is formed in the top opening of the lifting cylinder, a supporting plate capable of moving up and down is arranged in the lifting cylinder, an elastic piece is arranged between the supporting plate and the bottom wall of the lifting cylinder, when the ball joint is placed on the groove, the bottom surface of the ball joint presses the supporting plate downwards, an indicating plate penetrating through the side wall of the lifting cylinder and extending out of the lifting cylinder is fixedly arranged on one side of the supporting plate, and a sliding groove for the indicating plate to move up and down is formed in the side wall of the lifting cylinder;
and the telescopic device is used for adjusting the height of the lifting cylinder and is connected with the supporting body and the lifting cylinder.
Optionally, the support body comprises a main body and a plurality of telescopic struts hinged to the main body for supporting the main body.
Optionally, telescopic strut includes the connecting cylinder and connect respectively in first branch and second branch at connecting cylinder both ends, the both ends of connecting cylinder are equipped with thread groove and two respectively the screw thread opposite direction of thread groove, first branch with the tip of second branch be equipped with respectively with the screw thread of thread groove spiro union.
Optionally, the lifting cylinder is a cylinder with an open top end and a closed bottom, and the circular opening at the upper end of the cylinder forms the groove.
Optionally, a level is arranged on the supporting body.
Optionally, the telescopic device is an electric telescopic rod or a hydraulic jack.
Optionally, the main part is a sleeve, a transversely-arranged fixing plate is fixedly arranged in the sleeve, the sleeve is provided with a first mounting groove with an upward opening and a second mounting groove with a downward opening through the fixing plate, the telescopic device is mounted in the first mounting groove, and the positioning block is mounted in the second mounting groove through a plurality of connecting rods.
And a method for positioning a steel structure ball joint by using the steel structure ball joint positioning auxiliary device, comprising the following steps:
marking a position to be installed of a corresponding ball joint on a construction ground, and acquiring the radius of the ball joint;
placing a steel structure ball joint positioning device above the mark, and aligning and contacting the positioning block with the mark;
placing the ball joint on a groove at the bottom of the lifting cylinder, and pressing the supporting plate downwards at the bottom of the ball joint to enable the indicating plate to move downwards;
providing a measuring device, and measuring the elevation of the indicator board by using the measuring device;
adding the elevation of the indicating plate to the radius of the ball joint to obtain the elevation of the center of the ball joint;
calculating a difference value between the designed elevation of the sphere center and the elevation of the sphere center according to the elevation of the sphere center of the sphere node;
and adjusting the telescopic device according to the difference value to enable the sphere center elevation of the sphere node to move to the designed sphere center elevation position.
Optionally, the measuring device comprises a level gauge and a ruler, and in the step of measuring the elevation of the indicator board with the measuring device, the following steps are included:
acquiring the sight elevation of the level;
vertically installing the ruler on the indicating plate, aligning the level gauge with the ruler and acquiring a reading of the sight line of the level gauge corresponding to the ruler;
and calculating the elevation of the indicating plate according to the sight elevation of the level gauge and the reading on the ruler.
Optionally, a level is arranged on the supporting body, and the supporting body comprises a main body and a plurality of telescopic struts hinged to the main body and used for supporting the main body;
before the step of placing the ball joint on the groove at the bottom of the lifting cylinder is implemented, the method further comprises the following steps: and adjusting the angles of the plurality of telescopic supporting rods hinged on the main body and the lengths of the telescopic supporting rods until the bubbles in the level are centered.
Due to the adoption of the technical scheme, the invention has the following beneficial effects: the device is placed on the positioning mark through the positioning block at the bottom of the device, then the ball joint is placed above the lifting cylinder of the device, the central points of the ball joint and the positioning mark point are ensured to be positioned on the same vertical line, so that the positioning error caused by shielding the positioning mark point is avoided, and then the height of the ball joint is adjusted through the telescopic assembly; and the height of the device can be conveniently adjusted to a designated position corresponding to the size radius of the ball joint through a spring, a supporting plate and other components.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic sectional view showing an overall structure of a steel structure ball joint positioning aid according to the present invention.
Fig. 2 is a schematic front view of the steel structure ball joint positioning aid in use according to the present invention.
Fig. 3 is a schematic sectional view showing a ball joint positioning aid according to a steel structure in use.
4-6 show the structure schematic diagram of the positioning method steps of the steel structure ball joint positioning auxiliary device according to the invention.
Figure 7 shows a schematic cross-sectional view of a telescopic strut according to the invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
The invention is described in further detail below with reference to the figures and specific embodiments.
As shown in fig. 1-3, an embodiment of the steel structure ball joint positioning auxiliary device of the present invention includes a supporting body 1, a lifting cylinder 2 for mounting a ball joint 6, and a telescopic device 4 for adjusting the height of the lifting cylinder 2.
The bottom of the supporting body 1 is provided with a positioning block 16, and the telescopic device 4 is connected between the supporting body 1 and the lifting cylinder 2.
Promote a section of thick bamboo 2 and locate the upper end and the open-top of supporter 1, the open-top of promoting a section of thick bamboo 2 forms the recess 22 that supplies ball node 6 to lay, be equipped with the layer board 23 that can reciprocate in the recess 22, be equipped with elastic component 24 between the diapire of layer board 23 and recess 22, in this embodiment, the optional spring of elastic component, lay on 2 top recess 22 when ball node 6, ball node 6's bottom surface pushes down layer board 23 and moves down, one side of layer board 23 sets firmly the lateral wall that runs through recess 22 and extends the indicator plate 25 that promotes a section of thick bamboo 2 side, the lateral wall of promoting a section of thick bamboo 2 is equipped with the spout 26 that supplies indicator plate 25 to reciprocate. Preferably, in the present embodiment, the indicating plate 25 and the upper surface of the supporting plate 23 are located on the same horizontal plane, and in some other embodiments, the indicating plate 25 may be higher or lower than the supporting plate 23, and the height difference is known.
Wherein, the support body 1 comprises a main body and a plurality of telescopic struts 3 hinged with the main body and used for supporting the main body. When the device is used, the main body is supported by the telescopic supporting rods 3, the angle and the length of the telescopic supporting rods 3 are adjusted to enable the device to be horizontal, the height of the device is not changed, and the positioning block 16 at the bottom is enabled to be attached to the mark points all the time. In this embodiment, as shown in fig. 7, the telescopic strut 3 includes a connecting cylinder 31 and a first strut 32 and a second strut 33 respectively connected to two ends of the connecting cylinder 31, two ends of the connecting cylinder 31 are respectively provided with a thread groove and the thread directions of the two thread grooves are opposite, the end portions of the first strut 32 and the second strut 33 are respectively provided with a thread screwed with the thread groove, the first strut 32 is hinged to the main body, and one end of the second strut 33 away from the connecting cylinder 31 is sharp, so that the telescopic strut can be conveniently inserted into the construction ground for supporting. Since the thread directions in the thread grooves at both ends of the connecting cylinder 31 are opposite, when the connecting cylinder 31 is rotated while the first and second struts 32 and 33 are fixed, the first and second struts 32 and 33 are moved in opposite directions, thereby achieving the effect of extension or contraction. And in this structure, rotate connecting cylinder 31 alright realize telescopic strut 3's extension or shorten, adjust more convenient and adjust length and hold better, compare in single screw rod and spiro union screw sleeve on the screw rod, need not to rotate after lifting the screw rod, it is also more firm to use more convenient.
Further, be equipped with spirit level 5 on the supporter 1, when using, adjust the levelness of the adjustable whole device of the angle and the length of a plurality of telescopic support rod 3 to whether be in the horizontality through 5 observation devices of spirit level, when the bubble in the spirit level 5 is in the intermediate state, the device was in the horizontality this moment, made when the ball joint 6 was arranged in and is promoted a section of thick bamboo 2, the centre of sphere of ball joint 6 was unified with the central point of bottom locating piece 16.
Promote a section of thick bamboo 2 and be bottom confined drum 21, the circular opening that is located drum 21 upper end forms recess 22, and recess 22 notch laminating ball joint 6 that is circular form global for it is more stable when placing ball joint 6, and can be used to place the ball joint 6 of various sizes. In some other embodiments, the recess 22 may also be a triangular, square or other polygonal structure, and it should be ensured that the center points of the ball joint 6 and the positioning block 16 are located on the same vertical line after the ball joint 6 is installed in the recess 22 when the device is in the horizontal state.
In this device, telescoping device 4 is electric telescopic handle or hydraulic jack, and when being hydraulic jack, the lateral wall of main part is provided with and runs through the groove for hydraulic jack's action bars can stretch out and operate.
The main part is sleeve 11, sets firmly horizontal fixed plate 12 that sets up in the sleeve 11, and sleeve 11 is formed with ascending first mounting groove 13 of opening and the second mounting groove 14 that opens down through fixed plate 12, and telescoping device 4 installs in first mounting groove 13, and promotes the bottom of a section of thick bamboo 2 and also slide and establish in first mounting groove 13, and locating piece 16 is installed in second mounting groove 14 through a plurality of connecting rods 15. The fixing plate 12 is mounted at a lower position in the middle section of the sleeve 11, as shown in fig. 1.
Generally arrange the ball joint in fixed arc wall among the prior art, nevertheless because the size of ball joint differs to make the less ball joint of size rock everywhere in the arc wall, cause installation and follow-up regulation unstability, or the great ball joint bottom of size can't paste in the diapire of arc wall, and is difficult to measure the distance between ball joint bottom and the arc wall diapire, thereby causes the error when making follow-up regulation ball joint height. When the device is used, the ball joint 6 is arranged in the circular groove 22 which can be matched with different sizes, the device is more stable, the bottom of the ball joint 6 is pressed down by the supporting plate 23 and the indicating plate 25 to move downwards, the bottom position of the ball joint 6 can be clearly seen through the indicating plate 25, the position of the center of the sphere of the ball joint 6 is measured by the aid of the level gauge 8 and the ruler 7 according to the known radius of the ball joint 6, and the ball joint 6 is easily heightened to the required elevation position.
Based on the above embodiment of the steel structure ball joint positioning auxiliary device in the present invention, an embodiment of a positioning method of the steel structure ball joint positioning auxiliary device in the present invention is further introduced, which includes the following steps:
s1: and providing a total station, marking a position to be installed of the corresponding ball node 6 on the construction ground by using the total station, and acquiring the radius of the ball node 6 (the radius of the ball node 6 is recorded as r).
S2: providing a steel structure ball joint positioning auxiliary device, placing the steel structure ball joint positioning auxiliary device above the mark, and aligning and contacting the positioning block 16 with the mark.
S3: the support body 1 is adjusted to a horizontal position.
The angle at which the telescopic struts 3 are hinged to the main body and the length of the telescopic struts 3 are adjusted until the bubble in the level 5 is centered.
The step of adjusting the length of the telescopic supporting rod 3 is as follows: the connecting cylinder 31 is screwed to move the two first and second struts 32 and 33 in opposite directions by means of the screw thread, so that the length change of the telescopic strut 3 is adjusted.
S4: the ball joint 6 is placed on the groove 22 at the bottom of the lifting cylinder 2, and the bottom of the ball joint 6 presses the support plate 23 downwards, so that the indicator plate 25 moves downwards, as shown in fig. 1 and 3.
The indicating plate 25 is uniform with the upper surface of the supporting plate 23, and the upper surface of the supporting plate 23 is tangent to the bottom surface of the ball joint 6, so that the bottom end position of the ball joint 6 is obtained through the position of the indicating plate 25.
S5: and providing a measuring device, and measuring the elevation of the indicator board by using the measuring device.
In this embodiment, the measuring device includes a level and a straight ruler, and measuring the elevation of the indicator board includes the following steps:
s51: as shown in fig. 4, the straight edge 7 is set on the ground or at a position having a known elevation, the leveling instrument 8 is irradiated to the straight edge 7, and the elevation of the sight line of the leveling instrument 8 is obtained from the reading on the straight edge 7 (the height of the sight line is denoted by a).
S52: as shown in fig. 5, a graduated ruler 7 is mounted on an indicator board 25, a leveling instrument 8 with a known sight elevation a is used to align the ruler 7, and a reading on the ruler 7 corresponding to the sight of the leveling instrument 8 is obtained (the reading size of the ruler is recorded as b).
S53: and calculating the elevation of the indicating plate according to the sight elevation of the level 8 and the reading of the straight ruler 7 (the elevation of the indicating plate is marked as c).
In the present embodiment, when the sight line of the level 8 is higher than the indicator plate 25, the straight edge 7 is standing on the upper surface of the indicator plate 25, and the indicator plate elevation c is equal to a-b (b is a positive number); when the sight line of the level 8 is lower than the indicating plate 25, the straight ruler 7 is hung upside down on the indicating plate 25, and the elevation c of the indicating plate is equal to a-b (b is a negative number).
S6: the center elevation of ball joint 6 is calculated from the elevation of indicator plate 25 and the radius of ball joint 6 (the center elevation is denoted as d, and d is c + r).
S7: and calculating the difference value between the designed elevation (the designed elevation is marked as e) and the sphere center elevation of the sphere node 6.
The difference is the design elevation e minus the center elevation d, and the steps S5 and S6 are combined to obtain: the difference is e- (a-b + r).
S8: as shown in fig. 6, the telescopic device 4 is adjusted according to the difference value, so that the center of the ball joint 6 moves to the designed elevation position.
In the adjusting process, if the extension length of the telescopic device 4 cannot be determined, the difference (recorded as the second reading f of the straightedge) calculated in the step S6 is subtracted from the reading of the straightedge 7 measured in the step S5, and then the telescopic device 4 is adjusted, so that the lifting cylinder 2 drives the indicating plate 25, the straightedge 7 on the indicating plate 25 and the ball joint 6 to rise, and when the scale on the straightedge 7 after the leveling instrument 8 moves correspondingly is the calculated second reading f of the straightedge, the leveling instrument is adjusted in place.
S9: and after the ball joint 6 is adjusted in place, the ball joint is welded and fixed.
S10: after the welding of ball joint 6 is accomplished stably, readjust telescoping device 4's messenger and promote a section of thick bamboo 2 and reduce to make ball joint 6 and a section of thick bamboo 2 separation of promoting, make layer board 23 and indicator plate 25 shift up under reset spring 24's effect, thereby conveniently install next ball joint and use.
In practical applications, the size and specification of the device can be customized according to the requirements to match different practical situations.
It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The utility model provides a steel construction ball joint location auxiliary device which characterized in that includes:
the supporting body comprises a main body and a plurality of telescopic supporting rods which are hinged with the main body and used for supporting the main body;
the lifting cylinder is arranged at the upper end of the supporting body, a groove for placing a ball joint is formed in the top opening of the lifting cylinder, a supporting plate capable of moving up and down is arranged in the lifting cylinder, an elastic piece is arranged between the supporting plate and the bottom wall of the lifting cylinder, when the ball joint is placed on the groove, the bottom surface of the ball joint presses the supporting plate downwards, an indicating plate penetrating through the side wall of the lifting cylinder and extending out of the lifting cylinder is fixedly arranged on one side of the supporting plate, and a sliding groove for the indicating plate to move up and down is formed in the side wall of the lifting cylinder;
the telescopic device is used for adjusting the height of the lifting cylinder, is connected with the supporting body and the lifting cylinder, the main body is a sleeve, a transversely-arranged fixing plate is fixedly arranged in the sleeve, the sleeve passes through a first mounting groove with an upward opening and a second mounting groove with a downward opening are formed in the fixing plate, the telescopic device is installed in the first mounting groove, and the positioning blocks are installed in the second mounting groove through a plurality of connecting rods.
2. The steel structure ball joint positioning auxiliary device of claim 1, wherein the telescopic supporting rod comprises a connecting cylinder and a first supporting rod and a second supporting rod respectively connected to two ends of the connecting cylinder, two ends of the connecting cylinder are respectively provided with a thread groove, the thread directions of the two thread grooves are opposite, and the end parts of the first supporting rod and the second supporting rod are respectively provided with threads screwed with the thread grooves.
3. The steel structural ball joint positioning aid of claim 1, wherein the lifting cylinder is an open-topped, closed-bottomed cylinder, and a circular opening at an upper end of the cylinder forms the recess.
4. The steel structural ball joint positioning aid of claim 1, wherein a level is provided on the support.
5. The steel structure ball joint positioning aid of claim 1, wherein the telescoping device is an electric telescopic rod or a hydraulic jack.
6. A method for positioning a steel structure ball joint using the steel structure ball joint positioning assistance device according to any one of claims 1 to 5, comprising the steps of:
marking a position to be installed of a corresponding ball joint on a construction ground, and acquiring the radius of the ball joint;
placing a steel structure ball joint positioning device above the mark, and aligning and contacting the positioning block with the mark;
placing the ball joint on a groove at the bottom of the lifting cylinder, and pressing the supporting plate downwards at the bottom of the ball joint to enable the indicating plate to move downwards;
providing a measuring device, and measuring the elevation of the indicator board by using the measuring device;
adding the elevation of the indicating plate to the radius of the ball joint to obtain the elevation of the center of the ball joint;
calculating a difference value between the designed elevation of the sphere center and the elevation of the sphere center according to the elevation of the sphere center of the sphere node;
and adjusting the telescopic device according to the difference value to enable the sphere center elevation of the sphere node to move to the designed sphere center elevation position.
7. The method for locating a steel structure ball joint as recited in claim 6, wherein the measuring device includes a level and a straight ruler, and in the step of measuring the elevation of the indicator plate using the measuring device, the method comprises the steps of:
acquiring the sight elevation of the level;
vertically installing the ruler on the indicating plate, aligning the level gauge with the ruler and acquiring a reading of the sight line of the level gauge corresponding to the ruler;
and calculating the elevation of the indicating plate according to the sight elevation of the level gauge and the reading on the ruler.
8. The method for positioning the steel structure ball joint as recited in claim 6, wherein the supporting body is provided with a level, and comprises a main body and a plurality of telescopic struts hinged to the main body and used for supporting the main body;
before the step of placing the ball joint on the groove at the bottom of the lifting cylinder is implemented, the method further comprises the following steps: and adjusting the angles of the plurality of telescopic supporting rods hinged on the main body and the lengths of the telescopic supporting rods until the bubbles in the level are centered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010781421.8A CN111852050B (en) | 2020-08-06 | 2020-08-06 | Steel structure ball joint positioning auxiliary device and positioning method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010781421.8A CN111852050B (en) | 2020-08-06 | 2020-08-06 | Steel structure ball joint positioning auxiliary device and positioning method |
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| CN111852050A CN111852050A (en) | 2020-10-30 |
| CN111852050B true CN111852050B (en) | 2021-09-21 |
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| CN105587130B (en) * | 2014-11-14 | 2017-08-25 | 五冶集团上海有限公司 | A kind of space net shell solder sphere positioner and its application method |
| CN108592735A (en) * | 2018-05-17 | 2018-09-28 | 中冶建工集团有限公司 | Solder sphere sphere centre positioning device and method |
| DE102018120299A1 (en) * | 2018-08-21 | 2020-02-27 | Alexej Artamonow | Device for leveling casting compounds such as liquid screed, pumped concrete or the like, and measuring device with such a device |
| CN110107099B (en) * | 2019-06-14 | 2023-08-04 | 中铁八局集团建筑工程有限公司 | Welding ball net frame positioning device for tall building |
| CN210486743U (en) * | 2019-08-27 | 2020-05-08 | 常州市润昌光电科技有限公司 | High-precision sphere diameter measuring instrument convenient for measuring different sizes |
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