L-shaped rib plate unit assembling equipment and assembling method

Abstract

The L-shaped rib plate unit assembling equipment comprises an assembling platform used for positioning an L-shaped rib plate unit, walking rails are arranged on the two sides of the assembling platform, multiple sets of material frames are further arranged between the walking rails on the two sides, and the multiple sets of material frames are arranged at intervals along with the assembling platform. The surface of the walking track is slidably connected with a positioning assembly trolley and a plurality of material lifting trolleys; the positioning assembly trolley is of a double-main-beam structure and comprises a first main beam and a second main beam, the first main beam comprises a first cross beam, a welding mechanical arm is slidably connected to one side of the first cross beam, a plurality of clamping mechanisms are arranged at the bottom of the first cross beam at intervals, and a plurality of pressing mechanisms are arranged in the first cross beam at intervals; and a plurality of material lifting mechanisms are arranged at the bottoms of the second main beam and the material lifting trolley. According to the invention, the assembling process of the L-shaped ribs is equipment, and the plurality of L-shaped ribs can be synchronously positioned and assembled, so that the construction efficiency is improved while the cost is saved; and the positioning and assembling precision is high, so that the welding quality of the L-shaped rib plate unit is improved.

Description

Technical Field

[0001] The invention relates to an assembly device and an assembly method, and in particular to an L-shaped rib plate unit assembly device and an assembly method. Background Art

[0002] As an important form of bridge deck structure, orthotropic steel bridge deck has the characteristics of high material utilization, light weight, large ultimate bearing capacity, wide application range, short construction period, small steel bridge deck building height and beautiful appearance.

[0003] Orthotropic steel bridge decks are usually welded by top plates, longitudinal stiffening ribs, and transverse stiffening ribs. At present, longitudinal stiffening ribs are mainly in the form of U ribs and plate ribs, and there are a large number of professional equipment on the market that can be used for positioning, assembling, and welding U ribs and top plates or plate ribs and top plates. Since there are few orthotropic steel bridge decks using L-shaped ribs, there is no corresponding assembly equipment put into production. When manufacturing plate units, manual assembly is mainly used, which not only has low production efficiency, but also has problems such as uneven assembly gaps between L-shaped ribs and top plates, poor straightness of L-shaped ribs and assembly spacing accuracy, which affect the welding quality and service life of plate units. Summary of the invention

[0004] Purpose of the invention: The purpose of the invention is to propose an L-shaped rib plate unit assembly device and assembly method to ensure the assembly accuracy of the L rib and improve the assembly efficiency of the L rib plate unit.

[0005] Technical solution: The present invention includes an assembly platform for positioning L-shaped rib units, with walking tracks on both sides of the assembly platform, and multiple groups of material racks are provided between the walking tracks on both sides. The multiple groups of material racks are arranged at intervals along the assembly platform, and a positioning assembly trolley and multiple material lifting trolleys are slidably connected to the surface of the walking tracks; the positioning assembly trolley is a double-main-beam structure, including a first main beam and a second main beam, the first main beam includes a first cross beam, a welding robot arm is slidably connected to one side of the first cross beam, a plurality of clamping mechanisms are arranged at intervals at the bottom of the first cross beam, and a plurality of pressing mechanisms are arranged at intervals inside the first cross beam; the bottom of the second main beam and the material lifting trolley are both provided with multiple material lifting mechanisms.

[0006] The clamping mechanism comprises a box body, the top of which is fixed to the first crossbeam, clamping rollers are respectively installed on two opposite sides of the box body, a clamping seat and a first hydraulic cylinder are respectively installed on the other two opposite sides of the box body, and the first hydraulic cylinder is drivingly connected to the clamping seat.

[0007] The clamping seat is connected to the box body through a guide column. When the L-shaped rib needs to be clamped, the hydraulic cylinders of all clamping mechanisms drive the clamping seats to extend in the same direction, and the L-shaped rib is clamped together by the clamping seat of the clamping mechanism and the clamping roller of the adjacent clamping mechanism.

[0008] The pressing mechanism comprises a mounting plate, a second hydraulic cylinder is mounted on the top of the mounting plate, a pressing wheel assembly is arranged at the bottom, the pressing wheel assembly is drivingly connected to the second hydraulic cylinder, and the pressing wheel is driven by the hydraulic cylinder to press the L-shaped rib down to the top plate.

[0009] The material lifting mechanism comprises a mounting seat, a third hydraulic cylinder is mounted on the top of the mounting seat, a plurality of guide rollers are mounted on the bottom, an output end of the third hydraulic cylinder is connected to a lifting seat, and a roller is fixed on the side of the lifting seat.

[0010] The assembly platform includes multiple ground platforms, multiple groups of transverse clamping mechanisms are installed between the ground platforms, multiple positioning blocks are arranged on the ground platforms, the transverse clamping mechanisms and the positioning blocks are distributed on both sides of the assembly platform, and the connecting line of the positioning blocks is parallel to the central axis of the assembly platform.

[0011] The material rack is provided with a plurality of material storage slots, and the center of the material rack is aligned with the central axis of the assembly platform.

[0012] An alignment end stop is provided on one side of the material rack, and the L-shaped ribs are aligned based on the alignment end stop and then inserted into the material storage slot of the material rack.

[0013] The first main beam and the second main beam are connected by a connecting beam.

[0014] An assembly method of an L-shaped rib plate unit assembly device comprises the following steps: Before assembling the L-shaped rib plate unit, the top plate of the plate unit is laid on the assembly platform, and the top plate is positioned by the lateral clamping mechanism and positioning block of the assembly platform; After the top plate is adjusted, the L-shaped rib is hoisted to the rack area and inserted into the rack based on the alignment of the end stop; When all L-shaped ribs are stored, the positioning assembly trolley and the lifting trolley run to the material rack area, and the lifting mechanism of each trolley is inserted from one end of the L-shaped rib, and all L-shaped ribs are lifted off the material rack by the lifting mechanism. The positioning assembly trolley continues to move and the clamping mechanism and the pressing mechanism are inserted from the end of the L-shaped rib; The positioning assembly trolley and the lifting trolley transport all the L-shaped ribs to be assembled to the assembly platform area. After the end of the L-shaped rib is aligned with the end of the top plate, the lifting mechanism places the L-shaped rib vertically on the surface of the top plate. The clamping mechanism of the positioning assembly trolley adjusts the spacing and verticality of the L-shaped ribs, and then the pressing mechanism presses the L-shaped ribs downward to make them fit tightly with the top plate. The welding robot arm performs positioning welding on the positioned and pressed L-shaped ribs and the top plate. When all L-shaped ribs on the same positioning point have been position-welded, the positioning assembly trolley continues to position and press the L-shaped rib while moving to the next positioning point for position welding. The positioning welding steps are then repeated in sequence until the positioning assembly of the L-shaped rib plate unit is completed.

[0015] Beneficial effects: The L-shaped rib plate unit assembly equipment designed by the present invention realizes the equipmentization of the L-shaped rib assembly process, and multiple L-shaped ribs can be positioned and assembled simultaneously, saving costs while improving construction efficiency; it can ensure the spacing, verticality, straightness, etc. during the assembly of the L-shaped ribs, and has high positioning and assembly accuracy, thereby improving the welding quality and service life of the L-shaped rib plate unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the L-shaped rib plate unit of the present invention.

[0018] Figure 3 It is a schematic diagram of an assembly platform of the present invention.

[0019] Figure 4 It is a schematic diagram of the lateral clamping mechanism of the present invention.

[0020] Figure 5 It is a schematic diagram of the walking track of the present invention.

[0021] Figure 6 It is a schematic diagram of a material rack of the present invention.

[0022] Figure 7 It is a schematic diagram of the positioning and assembly trolley of the present invention.

[0023] Figure 8 It is a schematic diagram of the first main beam of the present invention.

[0024] Fig. 9 It is a schematic diagram of the second main beam of the present invention.

[0025] Fig.10 It is a schematic diagram of the clamping mechanism of the present invention.

[0026] Fig.11 It is a rear view of the clamping mechanism of the present invention.

[0027] Fig.12 It is a schematic diagram of the pressing mechanism of the present invention.

[0028] Fig.13 It is a schematic diagram of the material lifting mechanism of the present invention.

[0029] Fig.14 This is a state diagram of the clamping mechanism of the present invention clamping the L-shaped rib.

[0030] Fig.15 This is a state diagram of the material lifting mechanism of the present invention lifting the L-shaped rib from the material rack. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] like Figure 1 to Figure 13 As shown, the L-shaped rib plate unit assembly device of the present invention comprises an assembly platform 1 for positioning the L-shaped rib plate unit 8, walking tracks 5 are arranged on both sides of the assembly platform 1, and multiple groups of material racks 6 are arranged between the walking tracks 5 on both sides. The multiple groups of material racks 6 are arranged at intervals along the assembly platform 1, and an alignment end stop 7 is arranged next to the material racks 6 at the end; a positioning assembly trolley 2 and multiple material lifting trolleys are slidably connected to the surface of the walking track 5. In this embodiment, two material lifting trolleys are provided, including a first material lifting trolley 3 and a second material lifting trolley 4, as shown in FIG. Figure 1 shown.

[0033] like Figure 6 As shown, a plurality of vertical upward material storage slots 601 are provided on the material rack 6, and the material storage slots 601 are arranged on both sides with the center of the material rack 6 as a reference. When the material rack 6 is arranged, the center of the material rack 6 is aligned with the central axis of the assembly platform 1. After the arrangement of the material rack 6 is completed, an alignment end stop 7 is set at the end.

[0034] like Figure 5 As shown, the travel track 5 includes a track beam 501, a first guide rail 502 and a first rack 503 are provided on the top of the track beam 501, and a plurality of track adjustment devices 504 are provided at the bottom of the track beam 501, so that the track beam 501 can be adjusted in multiple directions, and the overall straightness and horizontal height of the first guide rail 502 are ensured by adjusting the track beam 501. The length of the travel track 5 includes the assembly platform 1, the rack 6 and the alignment end stop 7, and the travel track 5 is parallel to the central axis of the assembly platform 1.

[0035] like Figure 3 and Figure 4As shown, the assembly platform 1 includes a plurality of ground platforms 101, and the plurality of ground platforms 101 are arranged at intervals at a uniform horizontal height. A plurality of groups of transverse clamping mechanisms 102 are installed between the ground platforms 101. A plurality of positioning blocks 103 are arranged on the ground platforms 101. The transverse clamping mechanisms 102 and the positioning blocks 103 are distributed on both sides of the assembly platform. The positioning blocks 103 are arranged in a straight line and are parallel to the central axis of the assembly platform 1. The top plate 801 of the L-shaped rib unit 8 is fixed by the transverse clamping mechanism 102 and the positioning blocks 103. The transverse clamping mechanism 102 includes a support 1021, a third guide rail 1027 is installed on the top of the support 1021, a clamping seat 1023 is slidably connected to the third guide rail 1027, the bottom of the clamping seat 1023 is slidably connected to the third guide rail 1027 through a second slider 1022, a screw rod 1024 is connected through the clamping seat 1023, both ends of the screw rod 1024 are respectively installed on the top of the support 1021 through screw rod support seats 1025, and one end of the screw rod 1024 is connected to the motor 1026. The clamping seat 1023 is driven to slide on the guide rail by the motor screw, and then the top plate 801 is positioned by the clamping seat 1023 and the positioning block 103.

[0036] like Figure 7 As shown, the positioning assembly trolley 2 is a double-main-beam structure, including a first main beam 201 and a second main beam 202 , and the first main beam 201 and the second main beam 202 are formed into a whole through a connecting beam 203 .

[0037] like Figure 8 As shown, the first main beam 201 includes a first crossbeam 2011, a clamping mechanism 2012, a welding robot 2013 and a pressing mechanism 2014. A second rack 2015 and a second guide rail 2016 are provided on the side of the first crossbeam 2011 away from the second main beam 202. The welding robot 2013 moves on the crossbeam 2011 through the second rack 2015 and the second guide rail 2016. A first slider 204 is fixed at the bottom of the first crossbeam 2011, and the first slider 204 is slidably connected to the first guide rail 502 at the top of the track beam 501; motor reducers 205 are fixed at both ends of the first crossbeam 2011, and the output end of the motor reducer 205 is connected to the gear 206, which is meshed with the first rack 503 of the running track 5, and the positioning assembly trolley 2 is driven to move on the surface of the running track 5 through the meshing of the gear and rack.

[0038] A plurality of clamping mechanisms 2012 are arranged at intervals at the bottom of the first crossbeam 2011. The plurality of clamping mechanisms 2012 are installed together below the first crossbeam 2011 and the spacing between the clamping mechanisms 2012 is controlled by the positioning steps on the first crossbeam 2011. Fig.10 and Fig.11As shown, the clamping mechanism 2012 includes a box body 2012-1, the top of the box body 2012-1 is fixed to the first crossbeam 2011, clamping rollers 2012-2 are respectively installed on the opposite sides of the box body 2012-1, and a pin 2012-3 is connected between the clamping rollers 2012-2 on the same side, and a clamping seat 2012-5 and a first hydraulic cylinder 2012-6 are respectively installed on the other opposite sides of the box body 2012-1, and the first hydraulic cylinder 2012-6 is drivingly connected to the clamping seat 2012-5, and the periphery of the clamping seat 2012-5 is connected to the box body 2012-1 through a guide column 2012-7 and a guide sleeve 2012-4. When it is necessary to clamp the L-shaped rib, the hydraulic cylinders of all the clamping mechanisms drive the clamping seats to extend in the same direction, and the L-shaped rib is clamped together by the clamping seats of the clamping mechanisms and the clamping rollers of the adjacent clamping mechanisms, as shown in FIG. Fig.14 shown.

[0039] A plurality of pressing mechanisms 2014 are provided at intervals inside the first crossbeam 2011, such as Fig.12 As shown, the pressing mechanism 2014 includes a mounting plate 2014-2, and the pressing mechanism 2014 is installed at the bottom of the first beam 2011 through the mounting plate 2014-2. A second hydraulic cylinder 2014-1 is installed on the top of the mounting plate 2014-2, and a pressure wheel assembly is provided at the bottom. The pressure wheel assembly is drive-connected to the second hydraulic cylinder 2014-1, and the pressure wheel assembly includes pressure wheel guide columns 2014-3, and a pressure wheel 2014-5 is installed between the pressure wheel guide columns 2014-3 through a pressure wheel shaft 2014-4; the pressure wheel is driven by the hydraulic cylinder to press the L-shaped rib down to the top plate.

[0040] like Fig. 9 As shown, the structure of the second main beam 202 is similar to that of the first main beam 201. A plurality of lifting mechanisms 2022 are connected to the bottom of the second cross beam 2021 of the second main beam 202 at intervals, and the rest of the structures are the same. Fig.13 As shown, the lifting mechanism 2022 includes a mounting seat 2022-5, and the lifting mechanism 2022 is fixedly mounted on the bottom of the second cross beam 2021 through the mounting seat 2022-5. A third hydraulic cylinder 2022-1 is mounted on the top of the mounting seat 2022-5, and a plurality of guide rollers 2022-3 are mounted on the bottom. The output end of the third hydraulic cylinder 2022-1 is connected to a lifting seat 2022-2, and a guide column 2022-6 is connected between the lifting seat 2022-2 and the mounting seat 2022-5. A roller 2022-4 is also fixed on the side of the lifting seat 2022-2. When the L-shaped rib needs to be lifted from the material rack 6, the positioning assembly trolley 2 is inserted from one end of the L-shaped rib. At this time, the L-shaped rib is located between the guide rollers of the adjacent lifting mechanisms, and the lifting seat is driven to rise. The rollers on the side of the lifting seat abut against the top of the L-shaped rib, so that the L-shaped rib can be lifted from the material rack, as shown in FIG. Fig.15 shown.

[0041] The structural form of the first material lifting trolley 3 and the second material lifting trolley 4 is the same as the second main beam 202 of the positioning assembly trolley 2. The first material lifting trolley 3 and the second material lifting trolley 4 are connected to the first guide rail 502 on the track beam 501 through the slider 204 and then erected on the walking track 5. The motor reducer 205 drives the gear 206 and the first rack 503 to transmit. The first material lifting trolley 3 and the second material lifting trolley 4 can independently move on the walking track 5 or move synchronously.

[0042] The L-shaped rib plate unit assembly method of the present invention comprises the following steps: Before assembling the L-shaped rib plate unit, firstly lay the top plate 801 of the plate unit on the assembly platform 1, and quickly align and position the top plate 801 through the lateral clamping mechanism 102 and the positioning block 103 of the assembly platform 1; After the top plate 801 is adjusted, the L-shaped ribs 802 are hoisted one by one to the material rack 6 area, and the L-shaped ribs 802 are aligned with the alignment end stop 7 as a reference and then inserted into the material storage slot 601 of the material rack 6; After all the L-shaped ribs 802 are stored, the positioning assembly trolley 2, the first material lifting trolley 3 and the second material lifting trolley 4 move to the material rack 6 area, firstly insert the material lifting mechanism 2022 of each trolley from one end of the L-shaped rib 802, and then drive the lifting seat 222-2 and the roller 222-4 to rise through the hydraulic cylinder in the material lifting mechanism 2022, so as to lift all the L-shaped ribs 802 away from the material rack 6, and the positioning assembly trolley 2 continues to move to insert the clamping mechanism 2012 and the pressing mechanism 2014 from the end of the L-shaped rib 802; The positioning assembly trolley 2, the first material lifting trolley 3 and the second material lifting trolley 4 transport all the L-shaped ribs 802 to be assembled to the assembly platform 1 area, align the end of the L-shaped rib 802 with the end of the top plate 801, and then the material lifting mechanism 2022 vertically places the L-shaped rib 802 on the surface of the top plate 801, and then the clamping mechanism 2012 of the positioning assembly trolley 2 adjusts the spacing and verticality of the L-shaped rib 802, and then the L-shaped rib 802 is pressed downward by the pressing mechanism 2014 to make it fit tightly with the top plate 801, and the welding robot arm 2013 performs positioning welding on the positioned and pressed L-shaped rib 802 and the top plate 801; When all L-shaped ribs 802 on the same positioning point have been position-welded, the positioning assembly trolley 2 continues to position and press the L-shaped rib while moving to the next positioning point for position welding, and then repeats the positioning welding steps in sequence until the positioning assembly of the L-shaped rib plate unit is completed.

Claims

1. An L-shaped rib unit assembly device, characterized in that: The assembly platform (1) comprises an assembly platform (1) for positioning an L-shaped rib plate unit (8), wherein walking tracks (5) are arranged on both sides of the assembly platform (1), and a plurality of material racks (6) are arranged between the walking tracks (5) on both sides, and the plurality of material racks (6) are arranged at intervals along the assembly platform (1), and a positioning assembly trolley (2) and a plurality of material lifting trolleys are slidably connected to the surface of the walking tracks (5); the positioning assembly trolley (2) is a double main beam structure, comprising a first main beam (201) and a second main beam (202), the first main beam (201) comprising a first cross beam (2011), a welding mechanical arm (213) is slidably connected to one side of the first cross beam (2011), a plurality of clamping mechanisms (212) are arranged at intervals at the bottom of the first cross beam (2011), and a plurality of pressing mechanisms (214) are arranged at intervals inside the first cross beam (2011); a plurality of material lifting mechanisms (222) are provided at the bottom of the second main beam (202) and the material lifting trolley; The clamping mechanism (2012) comprises a box body (2012-1), the top of the box body (2012-1) is fixed to the first crossbeam (2011), clamping rollers (2012-2) are respectively installed on two opposite sides of the box body (2012-1), a clamping seat (2012-5) and a first hydraulic cylinder (2012-6) are respectively installed on the other two opposite sides of the box body (2012-1), and the first hydraulic cylinder (2012-6) is drivingly connected to the clamping seat (2012-5); The assembly platform (1) comprises a plurality of floor platforms (101), a plurality of groups of transverse clamping mechanisms (102) are installed between the floor platforms (101), a plurality of positioning blocks (103) are arranged on the floor platforms (101), the transverse clamping mechanisms (102) and the positioning blocks (103) are distributed on both sides of the assembly platform (1), and the connecting line of the positioning blocks (103) is parallel to the central axis of the assembly platform (1).

2. The L-shaped rib unit assembly device according to claim 1, characterized in that: The clamping seat (2012-5) is connected to the box body (2012-1) via a guide column (2012-7).

3. The L-shaped rib unit assembly device according to claim 1, characterized in that: The pressing mechanism (2014) comprises a mounting plate (2014-2), a second hydraulic cylinder (2014-1) is mounted on the top of the mounting plate (2014-2), and a pressing wheel assembly is provided at the bottom, wherein the pressing wheel assembly is drivingly connected to the second hydraulic cylinder (2014-1).

4. The L-shaped rib unit assembly device according to claim 1, characterized in that: The material lifting mechanism (222) comprises a mounting seat (222-5), a third hydraulic cylinder (222-1) is mounted on the top of the mounting seat (222-5), and a plurality of guide rollers (222-3) are mounted on the bottom, an output end of the third hydraulic cylinder (2022-1) is connected to a lifting seat (2022-2), and a roller (222-4) is fixed to the side of the lifting seat (2022-2).

5. The L-shaped rib unit assembly device according to claim 1, characterized in that: The material rack (6) is provided with a plurality of material storage slots (601), and the center of the material rack (6) is aligned with the central axis of the assembly platform (1).

6. The L-shaped rib unit assembly device according to claim 5, characterized in that: An alignment end stop (7) is provided on one side of the material rack (6).

7. The L-shaped rib unit assembly device according to claim 1, characterized in that: The first main beam (201) and the second main beam (202) are connected via a connecting beam (203).

8. An assembly method based on the L-shaped rib unit assembly equipment according to any one of claims 1 to 7, characterized in that: The following steps are involved: Before assembling the L-shaped rib plate unit (8), the top plate (801) of the L-shaped rib plate unit (8) is laid on the assembly platform (1), and the top plate (801) is positioned by the assembly platform (1); After the top plate (801) is adjusted, the L-shaped rib (802) is transported to the material rack area, and the L-shaped rib (802) is aligned and inserted into the material rack (6); After all the L-shaped ribs (802) are stored, the positioning assembly trolley (2) and the lifting trolley are moved to the material rack area, and the lifting mechanism (2022) of each trolley is inserted from one end of the L-shaped rib (802), and all the L-shaped ribs (802) are lifted and separated from the material rack (6) by the lifting mechanism (222), and the positioning assembly trolley (2) continues to move to insert the clamping mechanism (212) and the pressing mechanism (2014) from the end of the L-shaped rib (802); The positioning assembly trolley (2) and the material lifting trolley transport all the L-shaped ribs (802) to be assembled to the assembly platform (1) area, and after aligning the end of the L-shaped rib (802) with the end of the top plate (801), the material lifting mechanism (2022) vertically places the L-shaped rib (802) on the surface of the top plate (801), and then the clamping mechanism (2012) of the positioning assembly trolley (2) adjusts the spacing and verticality of the L-shaped rib (802) and then the pressing mechanism (2014) presses the L-shaped rib (802) downward to make it fit tightly with the top plate (801), and the welding robot arm (2013) performs positioning welding on the positioned and pressed L-shaped rib (802) and the top plate (801); When all L-shaped ribs (802) at the same positioning point have been position-welded, the positioning assembly trolley (2) continues to position and press the L-shaped rib (802) while moving to the next positioning point for position welding, and the position welding steps are subsequently repeated in sequence until the positioning assembly of the L-shaped rib plate unit (8) is completed.

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