CN109332978B - Bridge crane end beam positioning method - Google Patents
Bridge crane end beam positioning method Download PDFInfo
- Publication number
- CN109332978B CN109332978B CN201811423599.4A CN201811423599A CN109332978B CN 109332978 B CN109332978 B CN 109332978B CN 201811423599 A CN201811423599 A CN 201811423599A CN 109332978 B CN109332978 B CN 109332978B
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- China
- Prior art keywords
- positioning
- platform
- bracket
- bottom beam
- end beam
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
Abstract
The invention discloses a bridge machine end beam positioning method, which is characterized in that a bridge machine end beam positioning device is utilized for positioning, the positioning device comprises a bottom beam, a positioning base plate, a platform, a bracket and a clamping sizing block, wherein the bottom beam and the platform are connected and positioned through a chute and a key and can mutually slide along the chute; the section of the clamping sizing block is of a ladder structure, wherein the short elevation is contacted with the bottom surface of the bottom beam and is provided with a screw for positioning, and the high elevation is fixedly connected with the platform to form a side slideway; the bracket comprises a flat plate and vertical plates, wherein the two vertical plates are arranged in parallel and are vertically welded on the flat plate, and the two vertical plates are connected through a pin shaft; the bracket and the platform are connected and positioned through a key and a chute and can mutually slide along the chute; the positioning backing plate is connected with the support, and the outer side surface of the positioning backing plate is a processing surface. The invention ensures the positioning precision of the bridge girder of the bridge crane and has the advantages of good rigidity, light dead weight, simple structure, low manufacturing cost, low operation difficulty, flexible and convenient use, high production efficiency and the like.
Description
Technical Field
The invention relates to a bridge machine end beam positioning method, and belongs to the technical field of machinery.
Background
At present, the end beam of the bridge crane is positioned and welded, and the common method is to align the span of the large vehicle, the whole level and the straightness of the wheels of the whole crane by using the end beam assembled with the wheels as a reference. The method for positioning the end beam is simple and quick, and has higher positioning precision, but in the actual production process, the connection between working procedures is seriously affected due to long manufacturing period and late arrival time of the cart wheels, so that the production efficiency is greatly reduced. If the end beam of the wheel is not assembled directly, the positioning and aligning process of the end beam is complex, the technical difficulty is high, the technical level requirement on workers is high, the positioning precision is poor and the production efficiency is low.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a positioning method for ensuring the accurate positioning of the bridge crane end beam.
In order to solve the technical problem, the invention provides a bridge machine end beam positioning method, which is characterized in that a bridge machine end beam positioning device is utilized for positioning, the positioning device comprises a bottom beam, a positioning base plate, a platform, a bracket and a clamping sizing block, and the bottom beam and the platform are connected and positioned through a chute and a key and can mutually slide along the chute; the section of the clamping sizing block is of a ladder structure, wherein the short elevation is contacted with the bottom surface of the bottom beam and is provided with a screw for positioning, and the high elevation is fixedly connected with the platform through an inner hexagon bolt to form a side slideway; the bracket comprises a flat plate and vertical plates, wherein the two vertical plates are arranged in parallel and are vertically welded on the flat plate, and the two vertical plates are connected through a pin shaft; the bracket and the platform are connected and positioned through a key and a chute and can mutually slide along the chute; the positioning backing plate is connected with the bracket through an inner hexagon bolt, and the outer side surface of the positioning backing plate is a processing surface;
the positioning method comprises the following steps: firstly, adjusting four brackets on one side to the same straight line by taking a processing surface of a positioning backing plate as a reference; then adjusting eight brackets on two sides to be in a parallel state, respectively pasting the side machining surfaces of the four machined end beams with the outer machining surfaces of the positioning backing plates, tightly propping the end beams with inner hexagon bolts, and ensuring that the side machining surfaces of the end beams are in the same plane to meet the requirement of the assembly straightness of the wheels of the cart after the wheels of the cart are installed; and finally, the upper edge of the bearing box hole of the end beam is attached to the upper plane of the pin shaft cylinder, so that the eight bearing box holes of the end beam are positioned in the same horizontal plane, and the height difference between wheels of the cart is ensured to meet the technical requirements.
The upper plane of the bottom beam and the lower plane of the platform are milled and leveled, key grooves are formed in the longitudinal central line position of the upper plane of the bottom beam and the transverse central line position of the lower plane of the platform, and the bottom beam is connected with the platform through keys and can slide along mutually perpendicular sliding grooves.
The upper plane of the platform and the lower plane of the support are milled and leveled, key grooves are formed in the longitudinal center line position of the upper plane of the platform and the transverse center line position of the lower plane of the support, and the platform is connected with the support through keys and can slide along mutually perpendicular sliding grooves.
Reinforcing rib plates are welded between the flat plates and the vertical plates of the support.
The pin shaft is formed by turning a high-strength steel pipe, and is assembled in a pin shaft hole of the bracket.
The span of the bridge crane cart is adjusted by moving the positions of the bottom beams and the brackets.
The beneficial effects are that: the invention is different from the traditional manufacturing process that the end beam positioning is carried out by means of the cart wheels, the positioning welding of the bridge crane end beam can be completed on a tool, in the manufacturing process, the positioning precision of the bridge crane end beam is ensured without depending on the cart wheels as positioning references and without complex adjustment and alignment processes, and the bridge crane end beam positioning device has the advantages of good rigidity, light dead weight, simple structure, low manufacturing cost, low operation difficulty, flexible and convenient use, high production efficiency and the like.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic top view of the structure of the present invention;
FIG. 3 is a schematic left side view of the structure of the present invention;
FIG. 4 is an enlarged schematic view of the portion A of the present invention;
fig. 5 is a schematic view of the working state of the present invention.
In the figure: the steel plate clamping device comprises a bottom beam 1, a positioning backing plate 2, a platform 3, a support 4, a flat plate 41, a vertical plate 42, a reinforcing rib plate 43, a clamping sizing block 5, a pin shaft 6, a key 7, a hexagon head reinforcing rod bolt 8, a hexagon socket head cap screw I9, a hexagon socket head cap screw II10, an end beam 11, a main beam 12, a positioning device 13 and a bolt 14.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Fig. 1 is a schematic front view of the structure of the present invention.
Fig. 2 shows a schematic top view of the structure of the present invention.
The invention provides a bridge machine end beam positioning method, which utilizes a bridge machine end beam positioning device to position, wherein the positioning device comprises a bottom beam 1, a positioning base plate 2, a platform 3, a bracket 4 and a clamping sizing block 5.
The upper plane of the bottom beam 1 and the lower plane of the platform 3 are milled and leveled, key grooves are formed in the longitudinal center line position of the upper plane of the bottom beam 1 and the transverse center line position of the lower plane of the platform 3, and the bottom beam 1 and the platform 3 are connected and positioned through a chute and a key and can slide along the chute which is mutually perpendicular.
The upper plane of the platform 3 and the lower plane of the support 4 are milled and leveled, key grooves are formed in the longitudinal center line position of the upper plane of the platform 3 and the transverse center line position of the lower plane of the support 4, and the platform 3 and the support 4 are connected and positioned through the sliding grooves and keys and can slide along the sliding grooves which are mutually perpendicular.
The positioning backing plate 2 is connected with the bracket 4 through the inner hexagon bolt II10, and the outer side surface of the positioning backing plate 2 is a processing surface.
Fig. 3 shows a schematic left side view of the structure of the present invention.
Fig. 4 is an enlarged schematic view of the portion a of the present invention.
The bracket 4 comprises a flat plate 41 and vertical plates 42, wherein the two vertical plates 42 are arranged in parallel and welded on the flat plate 41 vertically, and the two vertical plates 42 are connected through a pin shaft 6.
Reinforcing rib plates 43 are welded between the flat plates 41 and the vertical plates 42 of the support 4.
The section of the clamping sizing block 5 is of a ladder structure, wherein the short inner part is in contact with the bottom surface of the bottom beam 1 and is provided with a screw for positioning, the high elevation is fixedly connected with the platform 3 through a bolt 14 to form a side slideway, stepless adjustment of the trolley span is realized, the design is suitable for manufacturing of various trolley span bridge machines, and the singleness of tool use is avoided.
The pin shaft 6 is formed by turning a high-strength steel pipe, has the characteristics of light dead weight and strong bearing capacity, can not generate elastic deformation when a bridge machine with a large main structure weight is assembled and welded, and can ensure the positioning precision of an end beam; the pin 6 is fitted in the pin hole of the bracket 4.
The adjustment of the bridge crane span is achieved by moving the position of the bottom beam 1 and the bracket 4.
Fig. 5 is a schematic view of the working state of the present invention.
The application method and the working principle of the invention are as follows:
positioning: firstly, adjusting four brackets 4 on one side to be on the same straight line with the processing surface of a positioning backing plate 2 as a reference, then adjusting eight brackets 4 on two sides to be in a parallel state, respectively pasting the side processing surface of the end beam 11 which is processed by four pieces with the external processing surface of the positioning backing plate 2, tightly propping the end beam with an inner hexagon bolt I9, and at the moment, the side processing surface of the end beam 11 is in the same plane, so that the requirement of the assembly straightness of the wheels of the cart is met after the wheels of the cart are installed, and the original procedures of aligning the straightness of the wheels and the track distance of the cart with the rims of the cart as the reference can be replaced; the upper edge of the bearing box hole of the end beam is attached to the upper plane of the cylinder of the pin shaft 6, so that eight bearing box holes of the end beam are positioned in the same horizontal plane, the height difference between wheels of a cart is ensured to meet the technical requirements, and the original process taking the bearing box of the end beam as a reference is replaced.
The innovation point of the invention is that the adjustment of the span and the wheel tread of the cart, in particular the design of the clamping sizing block can realize the stepless adjustment of the wheel tread of the cart, and the adjustment of millimeter level is achieved; then the width of the end beam is also adjustable, so that the single property of the tool is avoided, the main beam and the end beam can be used under the condition that the span is larger, the main beam and the end beam adopt lap joint or side butt joint connection mode and the bearing capacity (the lifting capacity is lower than 150 t) of the tool is not exceeded, and the applicability is wider. The span of the cart can be adjusted by the left-right movement of the bottom beam, the platform can longitudinally move on the bottom beam through the keys, the bracket can transversely move on the platform through the keys, and the span of the cart is adjusted in a key positioning and bolt pressing mode. A positioning backing plate is designed for avoiding interference between part of the upper wing plate of the end beam and the bracket. The end beam moves on the pin shaft in a positioning mode that one end of the support is positioned by an end plate or a positioning base plate and one end of the support is pressed by a bolt. The purpose of quick alignment and positioning of the end beam (comprising verticality, levelness and the like of the end beam) is achieved, the process of positioning and aligning the end beam by means of the cart wheels can be completely replaced, and the problems of long arrival cycle of the cart wheels and unsmooth operation of working procedures are overcome
The invention is different from the traditional manufacturing process that the end beam positioning is carried out by means of the cart wheels, the positioning welding of the bridge crane end beam can be completed on a tool, in the manufacturing process, the positioning precision of the bridge crane end beam is ensured without depending on the cart wheels as positioning references and without complex adjustment and alignment processes, and the bridge crane end beam positioning device has the advantages of good rigidity, light dead weight, simple structure, low manufacturing cost, low operation difficulty, flexible and convenient use, high production efficiency and the like.
The above-described embodiments of the invention are intended to be examples only, and not to be limiting, and all changes that come within the scope of the invention or equivalents thereto are intended to be embraced thereby.
Claims (4)
1. A bridge machine end beam positioning method is characterized in that: the bridge machine end beam positioning device is used for positioning, the positioning device comprises a bottom beam (1), a positioning base plate (2), a platform (3), a bracket (4) and a clamping sizing block (5), and the bottom beam (1) and the platform (3) are connected and positioned through a sliding groove and a key and can slide along the sliding groove; the section of the clamping sizing block (5) is of a ladder structure, wherein a short elevation is contacted with the bottom surface of the bottom beam (1) and is provided with a screw for positioning, and a tall elevation is fixedly connected with the platform (3) through a bolt (14) to form a side slideway; the bracket (4) comprises a flat plate (41) and vertical plates (42), wherein the two vertical plates (42) are arranged in parallel and are vertically welded on the flat plate (41), and the two vertical plates (42) are connected through a pin shaft (6); the bracket (4) is connected with the platform (3) through a key and a chute, positioned and can slide along the chute; the positioning base plate (2) is connected with the bracket (4) through the inner hexagon bolt II (10), and the outer side surface of the positioning base plate (2) is a processing surface; the positioning method comprises the following steps: firstly, adjusting four brackets (4) on one side to the same straight line by taking the processing surface of a positioning backing plate (2) as a reference; then eight brackets (4) on two sides are adjusted to be in a parallel state, the four processed end beams are respectively attached to an external processing surface of a positioning backing plate (2) through a lateral processing surface of the end beams, the end beams are tightly propped and positioned through an inner hexagon bolt I (9), and at the moment, the lateral processing surfaces of the end beams are positioned in the same plane, so that the requirement of the assembly straightness of the wheels of the cart is met after the wheels of the cart are installed; finally, the upper edge of the bearing box hole of the end beam is attached to the cylindrical upper plane of the pin shaft (6) by taking the cylindrical upper plane as a reference, so that the eight bearing box holes of the end beam are positioned in the same horizontal plane, and the height difference between wheels of the cart is ensured to meet the technical requirements; the upper plane of the bottom beam (1) and the lower plane of the platform (3) are milled and leveled, key grooves are formed in the longitudinal central line position of the upper plane of the bottom beam (1) and the transverse central line position of the lower plane of the platform (3), and the bottom beam (1) and the platform (3) are connected through keys and can slide along mutually perpendicular sliding grooves; the upper plane of the platform (3) is leveled with the lower plane of the support (4) through milling, key grooves are formed in the longitudinal center line position of the upper plane of the platform (3) and the transverse center line position of the lower plane of the support (4), and the platform (3) is connected with the support (4) through keys and can slide along mutually perpendicular sliding grooves.
2. The bridge girder positioning method according to claim 1, wherein: reinforcing rib plates (43) are welded between the flat plates (41) and the vertical plates (42) of the support (4).
3. The bridge girder positioning method according to claim 1, wherein: the pin shaft (6) is formed by turning a high-strength steel pipe, and the pin shaft (6) is assembled in a pin shaft hole of the bracket (4).
4. A bridge girder positioning method according to any one of claims 1-3, wherein: the span of the bridge crane cart is adjusted by moving the positions of the bottom beam (1) and the bracket (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811423599.4A CN109332978B (en) | 2018-11-27 | 2018-11-27 | Bridge crane end beam positioning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811423599.4A CN109332978B (en) | 2018-11-27 | 2018-11-27 | Bridge crane end beam positioning method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109332978A CN109332978A (en) | 2019-02-15 |
| CN109332978B true CN109332978B (en) | 2023-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811423599.4A Active CN109332978B (en) | 2018-11-27 | 2018-11-27 | Bridge crane end beam positioning method |
Country Status (1)
| Country | Link |
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| CN (1) | CN109332978B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112116584B (en) * | 2020-09-28 | 2023-10-31 | 苏州巨能图像检测技术有限公司 | Box hole positioning method in crane operation process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000000688A (en) * | 1998-06-16 | 2000-01-07 | Nippon Steel Corp | Method and equipment for continuous welding in longitudinal direction of strip steel |
| CA2321167A1 (en) * | 2000-09-27 | 2002-03-27 | Unknown | Jig machine for assembling sections of a modular stairway |
| CA2350637A1 (en) * | 2001-06-14 | 2002-12-14 | Stairframe Systems Inc. | Modular stairway system production benches |
| CN101797673A (en) * | 2010-03-25 | 2010-08-11 | 吉林大学 | Assembly welding clamping fixture of battery box cover |
| DE202010008862U1 (en) * | 2010-10-21 | 2012-01-23 | Kuka Systems Gmbh | clamping tool |
| CN107662398A (en) * | 2017-10-23 | 2018-02-06 | 德清众邦复合材料有限公司 | Hot pressing hybrid system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020066988A1 (en) * | 2000-09-27 | 2002-06-06 | Stairframe Systems Inc. | Modular stairway system production benches |
-
2018
- 2018-11-27 CN CN201811423599.4A patent/CN109332978B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000000688A (en) * | 1998-06-16 | 2000-01-07 | Nippon Steel Corp | Method and equipment for continuous welding in longitudinal direction of strip steel |
| CA2321167A1 (en) * | 2000-09-27 | 2002-03-27 | Unknown | Jig machine for assembling sections of a modular stairway |
| CA2350637A1 (en) * | 2001-06-14 | 2002-12-14 | Stairframe Systems Inc. | Modular stairway system production benches |
| CN101797673A (en) * | 2010-03-25 | 2010-08-11 | 吉林大学 | Assembly welding clamping fixture of battery box cover |
| DE202010008862U1 (en) * | 2010-10-21 | 2012-01-23 | Kuka Systems Gmbh | clamping tool |
| CN107662398A (en) * | 2017-10-23 | 2018-02-06 | 德清众邦复合材料有限公司 | Hot pressing hybrid system |
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| Publication number | Publication date |
|---|---|
| CN109332978A (en) | 2019-02-15 |
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