CN117644328A - Frame production line for automobile crane and frame installation method thereof - Google Patents
Frame production line for automobile crane and frame installation method thereof Download PDFInfo
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- CN117644328A CN117644328A CN202311765608.9A CN202311765608A CN117644328A CN 117644328 A CN117644328 A CN 117644328A CN 202311765608 A CN202311765608 A CN 202311765608A CN 117644328 A CN117644328 A CN 117644328A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 title abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 151
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 239000011265 semifinished product Substances 0.000 claims abstract description 30
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 230000008439 repair process Effects 0.000 claims description 10
- 239000000725 suspension Substances 0.000 claims description 10
- 241001631030 Explorator Species 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 239000013072 incoming material Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000006872 improvement Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
-
- 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
-
- 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
-
- 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
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Automatic Assembly (AREA)
Abstract
The invention relates to the technical field of frame welding, in particular to a frame production line for an automobile crane and a frame installation method thereof, wherein a frame box body, supporting legs, a frame front axle, various accessories and a walking board are respectively assembled and welded one by one on each station through a plurality of positioning welding stations, so that the whole frame is manufactured; the frame box body is accurately limited through the middle centering mechanism and the middle positioning mechanism, the supporting leg assembly is installed on the front side and the rear side of the frame box body in a matched mode through the lifting positioning mechanism and the end centering mechanism, assembly welding of a semi-finished product of the frame is achieved, the supporting table and the placing table of the positioning welding station at the front section and the rear section of the frame are respectively used for accurately positioning and installing the semi-finished product of the frame and the front bridge of the frame, assembly welding of the whole frame body is achieved, various accessories and walking plates are spliced at the appointed position of the frame in a spot welding mode, three-dimensional scanning is conducted through a frame detection area, and required overall dimension parameters are correspondingly detected, and intelligent production and manufacturing of the whole frame are greatly improved.
Description
Technical Field
The invention relates to the technical field of frame welding, in particular to a frame production line for an automobile crane and a frame installation method thereof.
Background
The existing production and manufacturing modes of the crane frame are mostly manual welding, the crane is required to be turned over for many times in the welding process, the production efficiency is low, and the labor intensity is high, so that the intelligent welding production line is adopted to automatically produce the crane frame, the labor intensity can be effectively reduced, and the production efficiency is improved. However, in the prior art, the frame production line is suitable and complete for managing the production system, the whole production line is disordered in the actual use process, the safety of the whole production line is seriously affected, and safety accidents and production accidents are easily caused. In addition, when some frame workpieces with larger volume and larger weight are processed or transported, the suitability transferring and adjusting work is difficult to carry out, so that the production efficiency is high and the frame workpieces are buckled.
Disclosure of Invention
In view of the above, the present invention aims to provide a frame production line for an automobile crane and a frame installation method thereof, so as to solve the technical problem of low intelligent degree of the frame production line.
The invention adopts the following scheme:
the application provides a frame production line for an automobile crane, which comprises a frame box body positioning welding station, a landing leg and frame box body positioning welding station, a frame front and back section positioning welding station, a frame accessory positioning welding station, a walking board positioning welding station and a tail end acceptance station; the frame box positioning welding station is used for performing assembly welding on incoming materials at the head end of the production line to form a frame box, and further transmitting the frame box to the next working procedure; the landing leg and frame box body positioning welding station comprises an end part centering mechanism, a lifting positioning mechanism, a middle part centering mechanism and a middle positioning mechanism; the middle centering mechanism comprises a lifting assembly, a roller assembly and centering assemblies which are opposite to each other in the width direction; the middle positioning mechanism is configured to be used for positioning a pin shaft at the middle part of the frame box body, and the lifting positioning mechanism and the end centering mechanism are mutually cooperated to be suitable for installing the support leg group on the front side and the rear side of the frame box body in pairs; the positioning welding station for the front and rear sections of the frame comprises a supporting table for receiving the full-welded frame semi-finished product and a pairing table arranged in front of the supporting table, the frame semi-finished product is hoisted and placed on the supporting table, the pairing table is suitable for lifting the frame front axle which is hoisted in a limiting mode, and the frame front axle is accurately positioned and mounted on the front side of the frame semi-finished product; the frame accessory positioning welding station is configured to move a cab bracket, a suspension arm bracket, a thrust rod bracket, an engine bracket and a gearbox bracket to designated positions of a frame respectively for spot welding and splicing; the walking board positioning welding station is provided with a positioning table, guide rails and a sliding table, wherein the guide rails and the sliding table are arranged on two sides of the positioning table, the positioning table is used for lifting and limiting a hoisted frame, the sliding table is provided with a magnetic attraction piece, and the magnetic attraction piece is used for grabbing the walking board and freely transferring and butting the walking board on the left side and the right side of the frame; the tail end acceptance station is provided with at least one frame detection area, and the frame detection area is used for detecting the operation of the transferred frame through a non-contact three-dimensional scanner.
As a further improvement, the end centering mechanism is configured as a vertical centering clamping structure capable of freely moving relative to the length direction of the frame box body, the lifting positioning mechanism is used for lifting the placed supporting leg to be flush with the frame box body placed by the middle positioning mechanism, the vertical centering clamping structure supports the supporting leg against the front side and the rear side of the frame box body at least along the length direction, and the supporting leg is moved to a centering position along the width direction.
As a further improvement, the supporting table comprises a middle pin shaft structure for plugging and positioning the frame box body, a centering structure oppositely arranged at the front side and the rear side of the middle pin shaft structure, and a leveling lifting structure arranged at the front side and the rear side of the supporting table.
As a further improvement, the middle pin shaft structure is used for axially limiting the hoisted semi-finished product of the vehicle frame, the centering structure is suitable for centering and limiting the semi-finished product of the vehicle frame in the width direction, and the leveling lifting structure is used for limiting and leveling the end part of the semi-finished product of the vehicle frame in a horizontal state.
As a further improvement, the assembling table comprises a clamp structure for positioning and clamping the front axle of the hoisted frame, a movable frame arranged on the front side in a sliding manner, and a positioning column and a positioning guide rod which are arranged on the movable frame and used for locking and fixing the bumper of the front axle.
As a further improvement, the fixture structure comprises a locating pin, a lifting piece and a clamping piece, wherein the locating pin is used for the front axle of the frame, the lifting piece and the clamping piece are used for transversely arranging the front axle of the frame on the pairing table in a centering clamping mode, the locating pin is inserted into the left side and the right side of the front axle of the frame, and the lifting piece is arranged on the pairing table in a lifting mode and is in supporting fit with the front axle of the frame.
As a further improvement, a plurality of positioning columns are arranged at intervals on the upper end side of the movable frame so as to perform preliminary positioning along the vertical direction; the positioning guide rod is controlled by the hand-operated screw rod to be correspondingly inserted and positioned along the transverse direction under the linkage of the hand-operated screw rod, so that the front axle bumper is locked on the movable frame, and the clamp structure can slide along the movable frame to correspondingly connect the front axle of the frame on the semi-finished product of the frame.
As a further improvement, the frame accessory positioning welding station comprises a placing table for the frame, a gantry crane arranged on the placing table and a walking lifting table for feeding materials to the placing table for the frame to use, wherein the gantry crane is used for lifting a suspension bracket with a follower fixture to the frame, a positioning explorator is arranged on the walking lifting table, and a cab bracket, a suspension bracket, an engine bracket and a gearbox bracket are respectively conveyed to the frame through the positioning explorator for further assembly spot welding.
As a further improvement, the frame box body positioning welding station, the landing leg and frame box body positioning welding station, the frame front and back section positioning welding station, the frame accessory positioning welding station and the walking board positioning welding station are respectively allocated with respective welding robots or manual welding positions.
As a further improvement, the carriage detection zone is provided with at least a loading and stacking station, a station changing and moving station, a scanning station, a data checking station and a discharging and outputting station.
The application further provides a frame installation method of the automobile crane, which is based on the frame production line for the automobile crane and comprises the following steps:
s1: the frame box body is correspondingly formed by manual assembly, repair welding and repair welding, single wire outer welding, double wire outer welding, repair flaw detection and processing of the frame box body through a frame box body positioning welding station;
s2: the support leg assembly is correspondingly arranged on the front side and the rear side of the frame box body at the support leg and frame box body positioning welding station, and the frame front axle is correspondingly arranged on the front side of the frame semi-finished product at the frame front and rear section positioning welding station;
s3: and further moving the frame accessory and the walking board to the appointed position of the frame for spot welding and splicing, and carrying out three-dimensional scanning detection acceptance on the frame in a frame detection area.
By adopting the technical scheme, the invention can obtain the following technical effects:
according to the frame production line for the automobile crane, the frame box body, the supporting legs, the frame front axle, various accessories and the walking board are assembled and welded one by one on the respective stations respectively through cooperation among the positioning welding stations, so that the whole frame is manufactured. On landing leg and frame box tack welding station, accurately prescribe a limit to the frame box by middle centering mechanism and middle positioning mechanism, cooperation lifting positioning mechanism and tip centering mechanism are installed the landing leg group at the front and back side of frame box, realize the assembly butt welding of frame semi-manufactured goods, support table and the placing table of section tack welding station around the frame, carry out accurate location installation to frame semi-manufactured goods and frame front axle respectively, realize the assembly butt welding of whole frame box, splice various annex and walking bench spot welding in frame assigned position department, carry out three-dimensional scanning by the frame detection zone and correspond the required overall dimension parameter of detection, promote the intelligent production manufacturing of whole line greatly.
Additional features and advantages of embodiments of the present application will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of embodiments of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and together with the description serve to explain, without limitation, the embodiments of the present application. Other figures may be made from the structures shown in these figures without inventive effort for a person of ordinary skill in the art. In the drawings:
FIG. 1 is a schematic diagram of a frame production line for an automotive crane according to an embodiment of the present invention;
FIG. 2 is a schematic product view of a frame for an automotive crane according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a station for tack welding of a leg and a carriage box of a carriage production line for an automotive crane in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of the structure of FIG. 3 at another view angle;
FIG. 5 is a schematic diagram of a frame front and rear section tack welding station of a frame production line for an automotive crane in accordance with an embodiment of the present invention;
FIG. 6 is a schematic view of the structure of the support table of FIG. 5;
FIG. 7 is a schematic view of the structure of the jig of the pairing station in FIG. 5;
FIG. 8 is a schematic view of the structure of the moving frame of FIG. 5;
FIG. 9 is a schematic diagram of a frame attachment tack welding station for a frame production line of an automotive crane in accordance with an embodiment of the present invention;
FIG. 10 is a schematic view of the walking lift table of FIG. 9;
FIG. 11 is a schematic structural view of a deck tack welding station of a truck frame production line for an automotive crane in accordance with an embodiment of the present invention;
fig. 12 is a block flow diagram of a method of installing a frame of an automotive crane according to an embodiment of the invention.
Description of the reference numerals
1-a frame box body positioning welding station; 2-a station for positioning and welding the supporting legs and the frame box body; 3-positioning welding stations at the front section and the rear section of the frame; 4-a frame accessory positioning welding station; 5-a walking board positioning welding station; 6-an end acceptance station;
7-an end centering mechanism; 8-lifting positioning mechanism; 9-a middle centering mechanism; 10-an intermediate positioning mechanism; 11-a lifting assembly; 12-a roller assembly; 13-centering assembly; 36-lifting piece; 37-a switching block;
14-a support table; 15-group pairing tables; 16-a middle pin structure; 17-centering structure; 18-leveling the lifting structure; 19-a clamp structure; 20-moving a frame; 21-positioning columns; 22-positioning guide rods; 23-locating pins; 24-lifting elements; 25-clamping piece; 26-hand shaking the screw;
27-a placement table; 28-gantry crane; 29-a walking lifting table; 30-positioning a explorator; 35-an engine and gearbox bracket tool;
31-a positioning table; 32-a guide rail; 33-ramp; 34-magnetic attraction piece;
a-frame box; b-supporting legs; c-a front axle of the frame; d-cab brackets; e-a boom support; f-an engine bracket; g-gearbox brackets; an H-suspension bracket; j-walking a bedplate; k-thrust rod support.
Detailed Description
The following detailed description of specific embodiments of the present application refers to the accompanying drawings. It should be understood that the detailed description is presented herein for purposes of illustration and explanation only and is not intended to limit the present application.
The following describes a part of the terminology of a frame production line for an automotive crane and a frame installation method thereof according to the present application with reference to the accompanying drawings.
Referring to fig. 1 to 11, the embodiment provides a frame production line for an automobile crane, which comprises a frame box body positioning welding station 1, a landing leg and frame box body positioning welding station 2, a frame front and rear section positioning welding station 3, a frame accessory positioning welding station 4, a walking board positioning welding station 5 and a tail end acceptance station 6.
The frame box body positioning welding station 1 is used for performing assembly welding on incoming materials at the head end of a production line to form a frame box body A, and further transmitting the frame box body to the next working procedure. It should be noted that the frame box body positioning welding station 1 is an existing station design, and will not be described herein. Obviously, the frame box A further output by the frame box positioning welding station 1 can be directly used for the next working procedure.
The station 2 for positioning and welding the support legs and the frame box body comprises an end part centering mechanism 7, a lifting positioning mechanism 8, a middle part centering mechanism 9 and a middle positioning mechanism 10. The center centering mechanism 9 includes a lifting assembly 11, a roller assembly 12, and centering assemblies 13 that are opposed to each other in the width direction. The intermediate positioning mechanism 10 is configured to perform pin positioning on the middle part of the frame box a, and the lifting positioning mechanism 8 and the end centering mechanism 7 cooperate with each other to be suitable for mounting the leg B pairs on the front and rear sides of the frame box a.
The front and rear frame section positioning welding station 3 comprises a supporting table 14 for receiving full-welded frame semi-finished products and a pairing table 15 arranged in front of the supporting table 14, the frame semi-finished products are hoisted and placed on the supporting table 14, the pairing table 15 is suitable for lifting a frame front axle C which is hoisted in a limiting mode, and the frame front axle C is accurately positioned and mounted on the front side of the frame semi-finished products.
The frame accessory positioning welding station 4 is configured to move a cab bracket D, a boom bracket E, a thrust rod bracket K, an engine bracket F and a gearbox bracket G to designated positions of a frame respectively for spot welding and splicing. It should be noted that for a specific configuration of the carriage accessory tack welding station 4, reference may be further made to the following description.
As shown in fig. 11, the walking board positioning welding station 5 is provided with a positioning table 31, guide rails 32 disposed on both sides of the positioning table 31, and a skid 33 thereof, wherein the positioning table 31 is used for lifting a frame which is limited to be lifted, the skid 33 is provided with a magnetic attraction piece 34, and the magnetic attraction piece 34 is used for grabbing the walking board and freely transferring and butting the walking board on the left side and the right side of the frame.
The end checking and accepting station 6 is provided with at least one frame detection area, and the frame detection area is used for detecting the operation of the transferred frame through a non-contact three-dimensional scanner.
According to the frame production line for the automobile crane, the frame box body A, the supporting legs B, the frame front axle C, various accessories and the walking board J are assembled and welded one by one on the respective stations respectively through cooperation among the positioning welding stations, so that the whole frame is manufactured. On landing leg and frame box tack welding station 2, by middle centering mechanism 9 and middle positioning mechanism 10 with frame box A accurate definition, cooperation elevating positioning mechanism 8 and tip centering mechanism 7 are organized the landing leg B and are installed in frame box A's front and back side, realize the assembly butt welding of frame semi-manufactured goods, carry out accurate location installation respectively at frame front and back section tack welding station 3's brace table 14 and place the platform 27, realize the assembly butt welding of whole frame box, splice various annexes and walking board J spot welding in frame assigned position department, carry out three-dimensional scanning by the frame detection zone and correspond the required overall dimension parameter of detection, promote the intelligent production manufacturing of whole line greatly.
As shown in fig. 3 and 4, in the present embodiment, the end centering mechanism 7 is configured as a vertical centering clamp structure that is movable in a longitudinal direction with respect to the frame box a, the lifting and positioning mechanism 8 is configured to lift the placed leg B to be flush with the frame box a where the intermediate positioning mechanism 10 is placed, and the vertical centering clamp structure abuts the leg B against front and rear sides of the frame box a at least in the longitudinal direction and moves the leg B to a centered position in the width direction. Obviously, the vertical centering clamping structure can adopt the existing centering clamping device for adjusting the supporting leg B on the lifting positioning mechanism 8 to the centering position after centering clamping so as to further weld the supporting leg B on the front side and the rear side of the frame box body A. The lifting positioning mechanism 8 adopts a lifting table structure and can drive the supporting leg B to move to be matched with the frame box body A at least along the up-down direction.
Further, finish machining (for example, milling flange drilling) is performed on the flange ring of the frame box by the frame box positioning welding station 1, then the frame box is turned over by the cantilever turning machine from the support leg to the frame box positioning welding station 2, the roller assembly 12 is lifted to be higher than the supporting bar of the middle positioning mechanism 10, damage to the finish machined flange is prevented, after the frame box is placed on the roller assembly 12, the centering assembly 13 centers the frame to perform primary positioning in the width direction, the roller assembly 12 performs secondary positioning in the length direction by manpower, meanwhile, the middle centering mechanism 9 descends, the bolt hole on the frame box flange ring is aligned to the positioning bolt of the middle positioning mechanism 10, after the front lifting assembly 11 and the rear lifting assembly are moved to two ends of the frame, the support leg is placed above the frame, the vertical centering clamping mechanism clamps the support leg, due to different frame types, the support leg and the frame box are correspondingly provided with lifting pieces 36 and switching blocks 37 (shown in fig. 4) on the lifting positioning mechanisms 8 at the front side and the rear side, the lifting blocks can be detached, the lifting blocks can be adjusted to be lifted, the lifting blocks 36 can be moved to be matched with the frame box type, and finally the frame box can be positioned by the manual positioning machine.
As shown in fig. 5 to 8, in the present embodiment, the support table 14 includes a middle pin structure 16 for plugging and positioning the frame box a, a centering structure 17 disposed opposite to the front and rear sides of the middle pin structure 16, and a leveling lifting structure 18 disposed on the front and rear sides of the support table 14. Specifically, the middle pin shaft structure 16 is used for axially limiting the hoisted semi-finished product of the vehicle frame, the centering structure 17 is suitable for centering and limiting the semi-finished product of the vehicle frame in the width direction, and the leveling lifting structure 18 is used for end limiting and leveling the semi-finished product of the vehicle frame in a horizontal state. Therefore, the semi-finished product of the frame is accurately limited at the required position through axial positioning, centering limiting and lifting adjustment. The centering structure 17 is similar to the centering and clamping device described above and will not be described in detail.
In this embodiment, the assembly bench 15 includes a clamp structure 19 for positioning and clamping the front axle C of the hoisted frame, a movable frame 20 slidably disposed on the front side, and a positioning column 21 and a positioning guide 22 disposed on the movable frame 20 for locking and fixing the bumper of the front axle. The clamp structure 19 comprises a locating pin 23 for the front axle of the vehicle frame, a lifting member 24 and a clamping member 25 (similar to a centering clamping device), wherein the clamping member 25 transversely positions the front axle of the vehicle frame on the pairing table 15 in a centering clamping mode, the locating pin 23 is inserted into the left side and the right side of the front axle of the vehicle frame, and the lifting member 24 is arranged on the pairing table 15 in a liftable mode and is in supporting fit with the front axle C of the vehicle frame. And a plurality of the positioning columns 21 are arranged at intervals on the upper end side of the movable frame 20 to perform preliminary positioning in the vertical direction. The positioning guide rod 22 is controlled by a hand-operated screw rod 26 to correspondingly and transversely plug and position under the linkage of the hand-operated screw rod 26, so that the front axle bumper is locked on the movable frame 20, and the clamp structure 19 can slide along the movable frame 20 to correspondingly connect the front axle C of the vehicle frame on the semi-finished product of the vehicle frame.
In the above, after the frame semi-finished product is accurately positioned and placed by the supporting table 14, the assembling table 15 correspondingly adjusts and moves the frame front axle C to be connected to the frame semi-finished product until the frame front axle C is accurately assembled to the front side of the frame semi-finished product.
As shown in fig. 9 and 10, in this embodiment, the frame attachment positioning welding station 4 includes a placing table 27 for a frame, a gantry crane 28 configured on the placing table 27, and a walking lifting table 29 for feeding to the placing table 27 for use by the frame, where the gantry crane 28 is used for lifting a suspension bracket H with a follower fixture to the frame, and the walking lifting table 29 is provided with a positioning explorator 30, and the cab bracket D, the boom bracket E, the engine bracket F, and the gearbox bracket G are respectively conveyed to the frame by the positioning explorator 30 for further assembly spot welding. The gantry crane 28 is used for positioning a follower fixture of the suspension bracket H, so that positioning assembly welding of a plurality of groups of suspension brackets H and thrust rod brackets K is realized, the traveling lifting platform 29 is used for respectively installing the cab bracket D and the suspension arm bracket E at specified positions and manually performing spot welding assembly, and the traveling lifting platform 29 is provided with a positioning explorator 30 which can be replaced correspondingly according to the frame specification, so that the fixed-point welding installation of cab brackets of various models is satisfied. The engine and gearbox bracket fixture 35 is respectively provided with an engine bracket profiling and a gearbox bracket profiling, and moves to a designated position to lift, and then spot welding assembly is performed on the engine bracket F and the gearbox bracket G manually.
It should be mentioned that the frame box tack welding station 1, the leg and frame box tack welding station 2, the frame front and rear section tack welding station 3, the frame accessory tack welding station 4, and the walking board tack welding station 5 are respectively assigned with respective welding robots (not shown) or manual welding positions. Therefore, independent welding robots are respectively arranged on each positioning welding station, or after preliminary fixed welding is carried out in a manual spot welding mode, unified integral full welding is carried out finally.
In this embodiment, the carriage detection area is equipped with at least a loading and stacking station, a station changing and moving station, a scanning station, a data checking station, and a discharging and outputting station. The frame product of the crane is automatically detected, the outline precision, the outline dimension and the geometric precision of form and position tolerance are detected in a non-contact three-dimensional scanning mode, the assembly component error is detected, and the graphic display and output of an automatic measurement result and an analysis report can be realized. The process flow comprises the following steps: the method comprises the steps of feeding, code scanning, AGV station changing movement, manual scanning, data checking, discharging, data detection and report outputting.
With reference to fig. 12, this embodiment further provides a method for installing a frame of an automobile crane, which is based on the foregoing frame production line for an automobile crane, and includes the following steps:
s1: the frame box body is correspondingly formed by manual assembly, repair welding and repair welding, single wire outer welding, double wire outer welding, repair flaw detection and processing of the frame box body through a frame box body positioning welding station;
s2: the support leg assembly is correspondingly arranged on the front side and the rear side of the frame box body at the support leg and frame box body positioning welding station, and the frame front axle is correspondingly arranged on the front side of the frame semi-finished product at the frame front and rear section positioning welding station;
s3: and further moving the frame accessory and the walking board to the appointed position of the frame for spot welding and splicing, and carrying out three-dimensional scanning detection acceptance on the frame in a frame detection area.
In the above, the frame mounting method of the automobile crane is at least: welding frame box body positioning (manual assembly), welding frame box body inner welding robot, welding repair welding and repairing in the box body, welding frame box body cover plate and reinforcing rib positioning, welding frame box body outer welding (single wire), welding frame box body inner welding (manual), welding frame box body outer welding (double wires), welding frame box body outer welding repair, aging and flaw detection, processing frame box body, welding leg and frame box body positioning welding, welding leg and frame box body connecting welding seam, welding frame front section and rear section positioning welding seam, welding frame front section and rear section butt welding seam, laser scribing of frame robot, welding frame accessory positioning welding, frame accessory total welding, walking board positioning welding, walking board support welding, inspection special area, stock and coding area. Therefore, the automatic and intelligent production and manufacture of the frame of the whole automobile crane are realized.
In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (10)
1. The frame production line for the automobile crane is characterized by comprising a frame box body positioning welding station (1), a landing leg and frame box body positioning welding station (2), a frame front and rear section positioning welding station (3), a frame accessory positioning welding station (4), a walking board positioning welding station (5) and a tail end acceptance station (6); wherein,
the frame box body positioning welding station (1) is used for performing assembly welding on incoming materials at the head end of the production line to form a frame box body (A), and further transmitting the frame box body (A) to the next working procedure;
the landing leg and frame box body positioning welding station (2) comprises an end part centering mechanism (7), a lifting positioning mechanism (8), a middle part centering mechanism (9) and a middle positioning mechanism (10); the middle centering mechanism (9) comprises a lifting assembly (11), a roller assembly (12) and centering assemblies (13) which are opposite to each other in the width direction; the middle positioning mechanism (10) is configured to perform pin shaft positioning on the middle part of the frame box body (A), and the lifting positioning mechanism (8) and the end centering mechanism (7) are mutually cooperated to be suitable for installing the supporting leg (B) in the front side and the rear side of the frame box body (A);
the positioning welding station (3) of the front section and the rear section of the frame comprises a supporting table (14) for receiving a full-welded frame semi-finished product and a pairing table (15) arranged in front of the supporting table (14), the frame semi-finished product is hoisted and placed on the supporting table (14), the pairing table (15) is suitable for lifting a frame front axle (C) which is hoisted in a limiting mode, and the frame front axle (C) is accurately positioned and mounted on the front side of the frame semi-finished product;
the frame accessory positioning welding station (4) is configured to move a cab bracket (D), a suspension arm bracket (E), a thrust rod bracket (K), an engine bracket (F) and a gearbox bracket (G) to designated positions of a frame respectively for spot welding and splicing;
the walking board positioning welding station (5) is provided with a positioning table (31), guide rails (32) and a sliding table (33) which are arranged on two sides of the positioning table (31), the positioning table (31) is used for lifting a frame which is limited to be lifted, the sliding table (33) is provided with a magnetic attraction piece (34), and the magnetic attraction piece (34) is used for grabbing a walking board (J) and freely transferring and butting the walking board (J) on the left side and the right side of the frame; the method comprises the steps of,
the tail end acceptance station (6) is provided with at least one frame detection area, and the frame detection area is used for detecting the operation of the transferred frame through a non-contact three-dimensional scanner.
2. The frame production line for an automobile crane according to claim 1, wherein the end centering mechanism (7) is configured as a vertical centering clamping structure movable in a length direction with respect to the frame box (a), the lifting positioning mechanism (8) is used for lifting the placed leg (B) to be flush with the frame box (a) placed by the intermediate positioning mechanism (10), and the vertical centering clamping structure abuts the leg (B) against front and rear sides of the frame box (a) at least in the length direction and moves the leg (B) to a centered position in a width direction.
3. The frame production line for an automobile crane according to claim 1, wherein the support table (14) comprises a middle pin shaft structure (16) for plugging and positioning the frame box (a), centering structures (17) arranged on the front side and the rear side of the middle pin shaft structure (16) in an opposite manner, and leveling lifting structures (18) arranged on the front side and the rear side of the support table (14).
4. A frame production line for an automotive crane according to claim 3, characterized in that the intermediate pin structure (16) is used for axially limiting the semi-finished product of the frame from hoisting, the centering structure (17) is adapted to center the semi-finished product of the frame in its width direction, and the leveling lifting structure (18) performs end limiting and leveling of the semi-finished product of the frame in a horizontal state.
5. The frame production line for an automobile crane according to claim 1, wherein the pairing table (15) comprises a clamp structure (19) for positioning and clamping a front axle (C) of the hoisted frame, a movable frame (20) arranged on the front side in a sliding manner, and a positioning column (21) and a positioning guide rod (22) which are arranged on the movable frame (20) and used for locking and fixing a bumper of the front axle.
6. The frame production line for an automobile crane according to claim 5, wherein the clamp structure (19) comprises a locating pin (23) for a frame front axle (C), a lifting member (24) and a clamping member (25), the clamping member (25) transversely places the frame front axle (C) on the pairing table (15) in a centering clamping manner, the locating pin (23) is inserted at the left side and the right side of the frame front axle (C), and the lifting member (24) is arranged on the pairing table (15) in a liftable manner and is in supporting fit with the frame front axle (C).
7. The frame production line for an automobile crane according to claim 6, wherein a plurality of the positioning columns (21) are arranged at intervals on the upper end side of the movable frame (20) so as to perform preliminary positioning in the vertical direction; the positioning guide rod (22) is controlled by the hand-operated screw rod (26) to be correspondingly positioned along the transverse insertion connection under the linkage of the hand-operated screw rod (26), so that the front axle bumper is locked on the movable frame (20), and the clamp structure (19) can slide along the movable frame (20) to correspondingly connect the front axle (C) of the frame on the semi-finished product of the frame.
8. Frame production line for an automotive crane according to claim 1, characterized in that the frame accessory tack welding station (4) comprises a placing table (27) for the frame, a gantry crane (28) arranged on the placing table (27) and a walking lifting table (29) for feeding onto the placing table (27) for the frame, the gantry crane (28) is used for lifting a suspension bracket (H) with a follower fixture onto the frame, a positioning explorator (30) is arranged on the walking lifting table (29), and a cab bracket (D), a boom bracket (E), an engine bracket (F) and a gearbox bracket (G) are respectively conveyed onto the frame through the positioning explorator (30) for further assembly spot welding.
9. The carriage production line for an automotive crane according to claim 1, characterized in that the carriage detection zone is equipped with at least a loading and stacking station, a station changing and moving station, a scanning station, a data inspection station, and a blanking output station.
10. A method of installing a frame of an automotive crane, characterized by the steps of:
the frame box body (A) is formed by correspondingly implementing manual assembly, inner welding repair, single wire outer welding, double wire outer welding, repair flaw detection and processing of the frame box body (A) through a frame box body positioning welding station (1);
the support legs (B) are assembled and arranged on the front side and the rear side of the frame box body (A) correspondingly to the frame box body positioning welding station (2), and the frame front bridge (C) is arranged on the front side of a frame semi-finished product correspondingly to the frame front-rear section positioning welding station (3);
and further moving the frame accessory and the walking board (J) to the appointed position of the frame for spot welding and splicing, and carrying out three-dimensional scanning detection acceptance on the frame in a frame detection area.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310812038.8A CN116765850A (en) | 2023-07-04 | 2023-07-04 | Frame production line for automobile crane and frame installation method thereof |
| CN2023108120388 | 2023-07-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117644328A true CN117644328A (en) | 2024-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310812038.8A Pending CN116765850A (en) | 2023-07-04 | 2023-07-04 | Frame production line for automobile crane and frame installation method thereof |
| CN202311765608.9A Pending CN117644328A (en) | 2023-07-04 | 2023-12-20 | Frame production line for automobile crane and frame installation method thereof |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310812038.8A Pending CN116765850A (en) | 2023-07-04 | 2023-07-04 | Frame production line for automobile crane and frame installation method thereof |
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| CN (2) | CN116765850A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117680907B (en) * | 2024-02-01 | 2024-04-02 | 石家庄奥通机械设备制造有限公司 | Front bracket assembly welding system for air suspension |
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2023
- 2023-07-04 CN CN202310812038.8A patent/CN116765850A/en active Pending
- 2023-12-20 CN CN202311765608.9A patent/CN117644328A/en active Pending
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| CN116765850A (en) | 2023-09-19 |
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