CN114802543B - Whole machine assembly production line - Google Patents
Whole machine assembly production line Download PDFInfo
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- CN114802543B CN114802543B CN202210423830.XA CN202210423830A CN114802543B CN 114802543 B CN114802543 B CN 114802543B CN 202210423830 A CN202210423830 A CN 202210423830A CN 114802543 B CN114802543 B CN 114802543B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 49
- 238000005086 pumping Methods 0.000 claims abstract description 72
- 238000012546 transfer Methods 0.000 claims description 18
- 238000005553 drilling Methods 0.000 claims description 11
- 239000010720 hydraulic oil Substances 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 5
- 238000009420 retrofitting Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 26
- 230000008569 process Effects 0.000 description 22
- 239000000047 product Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000003921 oil Substances 0.000 description 8
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000009429 electrical wiring Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
- B62D65/022—Transferring or handling sub-units or components, e.g. in work stations or between workstations and transportation systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/16—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying mixed concrete, e.g. having rotatable drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
- B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Automatic Assembly (AREA)
Abstract
The invention relates to the technical field of mechanical assembly, and discloses a complete machine assembly production line which comprises a chassis remanufacturing line, an auxiliary frame chassis assembling line, an assembly line, a pumping unit part line, a rear support leg part line and an arm support assembly part line, wherein the chassis remanufacturing line and the auxiliary frame chassis assembling line are arranged in parallel, the chassis remanufacturing line and the assembly line are sequentially arranged along the line body flow direction, the pumping unit part line and the rear support leg part line are arranged on one side of the assembly line, a pumping unit air conveying line capable of conveying pumping units to the assembly line for on-machine assembly is arranged between the pumping unit part line and the assembly line, a rear support leg air conveying line capable of conveying rear support legs to the assembly line for on-machine assembly is arranged between the rear support leg part line and the assembly line, and the assembly line is arranged on the other side of the assembly line. The whole machine assembly production line can reduce the lifting times, does not need line edge buffer area, and does not influence ground logistics.
Description
Technical Field
The invention relates to the technical field of mechanical assembly, in particular to a complete machine assembly production line.
Background
The assembly line is a special product oriented layout. An assembly line refers to a continuous line connected by a number of material handling equipment. An assembly line is an important technology, and it can be said that any final product that has a plurality of parts and is mass-produced is produced to some extent by an assembly line. Thus, the placement of an assembly line is affected by various factors such as assembly line equipment, products, personnel, logistics transportation, and production.
Taking the assembly of a concrete pump truck as an example, the concrete pump truck is engineering machinery capable of pumping concrete and conveying the concrete to a pouring point, and has pumping and running functions. The concrete pump truck is mainly composed of a chassis and an upper assembly, wherein the upper assembly mainly comprises a subframe, a front support leg assembly of the chassis, a pumping unit, a left rear support leg assembly, a right rear support leg assembly, a cantilever crane assembly and the like. The whole pump truck assembly is a process of modifying the chassis and assembling a plurality of parts on the modified chassis to form a whole truck.
The current concrete pump truck complete machine assembly production line comprises a main machine line, a large part line and a motor car lower line, and is a mode of combining the production line and a station method. The main machine line is a production line and is mainly used for carrying out partial assembly operation content before the chassis is reformed and the arm support assembly is on-machine; the large piece of line is a production line, and is mainly used for assembling the underframe of the auxiliary frame, assembling the pumping unit and the upper machine of the rear supporting leg; the motor car off-line adopts the station method, mainly used for operations such as electrical wiring of vehicles. After the assembly of the pumping unit is completed, the ground is crossed and the equipment is crossed, the sequence is changed to the line edge of the large piece, the rear supporting leg is changed to the line edge of the large piece through a forklift, after the assembly of the main machine line is completed, the manual driving vehicle is transferred to the arm support assembly line for the assembly of the arm support assembly on the machine, and after the assembly is completed, the manual driving vehicle is transferred to the motor car off-line for the electric wiring operation.
However, taking the assembly of large-scale structural members such as pumping units and rear supporting legs as an example, the large-scale structural members such as pumping units and rear supporting legs adopt a mode of transferring the ground to the line side and then hoisting the machine, the whole process hoisting times are high, the material flow channel area occupied in the transferring process is large, and the problems of low assembly efficiency, large line side storage occupied area, material flow congestion and the like are caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing a complete machine assembly production line which can reduce the hoisting times, does not need line edge buffer area and does not influence ground logistics.
In order to solve the technical problems, the invention provides a complete machine assembly production line, which comprises a chassis remanufacturing line, an auxiliary frame chassis assembling line, an assembly line, a pumping unit part line, a rear support leg part line and an arm support assembly part line, wherein the chassis remanufacturing line and the auxiliary frame chassis assembling line are arranged in parallel, the chassis remanufacturing line and the assembly line are sequentially arranged along the line body flow direction, the pumping unit part line and the rear support leg part line are arranged on one side of the assembly line, a pumping unit air conveying line capable of conveying a pumping unit to the assembly line for on-machine assembly is arranged between the pumping unit part line and the assembly line, a rear support leg air conveying line capable of conveying a rear support leg to the assembly line for on-machine assembly is arranged between the rear support leg part line and the assembly line, and the assembly part line is arranged on the other side of the assembly line.
Optionally, the chassis retrofit line, subframe chassis assembly line and final assembly line are arranged in a second cross-over region.
Further, the pumping unit portion line and the rear leg portion line are arranged in a third cross region, the third cross region being arranged adjacent and in parallel with the second cross region, the pumping unit portion line and the rear leg portion line being arranged in order along a body flow direction.
Further, the boom assembly line is arranged in a first cross-zone, the first cross-zone being adjacently arranged in parallel with the second cross-zone.
Optionally, the pumping unit air conveying line comprises a first annular track, and a trolley hoist capable of moving along the first annular track is arranged on the first annular track; the rear landing leg air conveying line comprises a second annular rail, and a trolley hoist capable of moving along the second annular rail is arranged on the second annular rail.
Optionally, the chassis is reformed line includes first transfer chain body, chassis tail boom automatic cutout equipment, first flexible hoist system, spare tyre dismantlement helping hand manipulator, chassis girder drilling equipment and chassis connecting plate and is screwed up special plane, chassis tail boom automatic cutout equipment and first flexible hoist system are followed the line flow direction of the first transfer chain body arranges in order, spare tyre dismantlement helping hand manipulator and chassis connecting plate screw up special plane all hang on the first flexible hoist system, just spare tyre dismantlement helping hand manipulator, chassis girder drilling equipment and chassis connecting plate screw up special plane and follow the line flow direction of the first transfer chain body arranges in order.
Optionally, the auxiliary frame chassis assembly line includes auxiliary frame warehouse system, the second transfer chain body, second flexible hoist system and the automatically controlled cabinet assembly helping hand manipulator of arranging in order, auxiliary frame warehouse system and the flexible hoist system of second follow the line body flow direction of the second transfer chain body is arranged in order, automatically controlled cabinet assembly helping hand manipulator hangs on the flexible hoist system of second.
Optionally, the assembly line includes the third transfer chain body, the flexible hoist and mount system of third, perpendicular hydro-cylinder assembly helping hand manipulator, perpendicular hydro-cylinder bolt tightening special plane, hydraulic oil filling equipment and multi-functional aerial work platform that arrange in order, the flexible hoist and mount system of third, hydraulic oil filling equipment and multi-functional aerial work platform follow the line body flow direction of the third transfer chain body arranges in order, perpendicular hydro-cylinder assembly helping hand manipulator and perpendicular hydro-cylinder bolt tightening special plane all hang on the flexible hoist and mount system of third.
Further, the third flexible hoisting system is located below the pumping unit air conveyor line and the rear leg air conveyor line.
Optionally, the production line information system comprises a production line control system connected with the MES in a communication way, a plurality of line controllers for collecting data information of each line and a plurality of special machine control systems for controlling equipment to run, wherein the line controllers and the special machine control systems are both connected with the production line control system in a communication way.
Through the technical scheme, the invention has the following beneficial effects:
the pumping unit air conveying line and the rear landing leg air conveying line are adopted to automatically transfer large-scale components such as the pumping unit and the rear landing leg from the assembly line to the assembly line directly, the lifting times are reduced, the line edge buffer area is not needed, and the ground logistics is not influenced. In addition, the chassis remanufacturing line and the auxiliary frame chassis assembling line are arranged in parallel, the chassis remanufacturing line and the main assembling line are sequentially arranged along the line body flow direction, the assembly line operation can be realized according to beats, the line body flow directions of the three lines are consistent, and the manufacturing period is shortened.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings:
FIG. 1 is a schematic plan layout of a complete machine assembly line in accordance with an embodiment of the present invention;
FIG. 2 is a diagram of a production line informatization system architecture in accordance with an embodiment of the present invention;
FIG. 3 is a front view of a chassis retrofit line in accordance with an embodiment of the present invention;
FIG. 4 is a front view of a subframe chassis assembly line in an embodiment of the invention;
fig. 5 is a front view of an assembly line in an embodiment of the invention.
Description of the reference numerals
1 first conveyor line body of chassis remanufacturing line 11
12 chassis tail boom automatic cutout equipment 13 first flexible hoisting system
15 chassis girder drilling equipment of 14 spare tire disassembly power assisting manipulator
Special machine 2 subframe underframe assembly line is screwed up to 16 chassis connecting plates
21 sub vehicle frame warehouse system 22 second transfer chain body
23 second flexible hoisting system 24 electric control cabinet assembly power-assisted manipulator
3 Assembly line 31 third transfer chain body
32 third flexible hoisting system 33 vertical cylinder assembly booster manipulator
34 vertical cylinder bolt tightening special machine 35 hydraulic oil filling equipment
36 multifunctional aerial conveying line for aerial working platform 4 pumping unit
Special hoisting machine for 6 arm support assembly of 5 rear supporting leg air conveying line
72 line body controller of 71 production line control system
73 special plane control system 8 pumping unit assembly line
9 rear supporting leg part assembly line 10 arm support assembly part assembly line
Detailed Description
The following detailed description of the embodiments of the invention is provided in connection with the accompanying drawings, it being understood that the embodiments described herein are for purposes of illustration and explanation only, and the scope of the invention is not limited to the following embodiments.
In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly via an intermediate medium, or in communication with each other or in interaction with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, 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 implicitly indicating the number of technical features indicated, and thus features defining "first," "second," and the like may explicitly or implicitly include one or more of such features.
In the description of the present invention, it should be understood that the term of azimuth is based on the azimuth of the assembly line of the whole machine, and for convenience of description and simplification of description, the term "front, rear, left, right" refers to the front, rear, left, right directions of the assembly line of the whole machine, for example, referring to fig. 1, the assembly line 3 is located in front of the chassis modification line 1, and the chassis modification line 1 is located on the left side of the sub-frame chassis assembly line 2; the orientation or positional relationship shown in the drawings is for convenience of description and simplicity of description only, and is not intended to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.
Referring to fig. 1 to 5, the present invention provides a complete machine assembly line, comprising a chassis reworking line 1, a sub-frame chassis assembly line 2, a final assembly line 3, a pumping unit part line 8, a rear leg part line 9 and a boom assembly part line 10, wherein the chassis reworking line 1 and the sub-frame chassis assembly line 2 are arranged in parallel, the chassis reworking line 1 and the final assembly line 3 are arranged in sequence along the body flow direction, the pumping unit part line 8 and the rear leg part line 9 are arranged at one side of the final assembly line 3, a pumping unit air conveying line 4 is arranged between the pumping unit part line 8 and the final assembly line 3, the pumping unit can convey a pumping unit to the final assembly line 3 for on-machine assembly, a rear leg air conveying line 5 is arranged between the rear leg part line 9 and the final assembly line 3, the rear leg air conveying line 5 can convey a rear leg to the final assembly line 3 for on-machine assembly, and the boom assembly part line 10 is arranged at the other side of the final assembly line 3.
The pumping unit and the rear landing leg air conveying line 4 and the rear landing leg air conveying line 5 are adopted, the pumping unit and the rear landing leg can be directly assembled from a part line to a final assembly line 3 from the air automatic sequence, and compared with the ground conveying mode adopted in the prior art, the invention can reduce the lifting times, and the lifting times are not required to be conveyed to the line side, so that the line side buffer area is not required, and the ground logistics is not influenced.
In addition, compared with the prior art, the invention adopts a mode of carrying out electric wiring operation after the assembly of the mechanical part and the hydraulic part of the whole vehicle is completed, and the front supporting leg and the rear supporting leg of the vehicle unfolding pump truck are not required to lift the whole vehicle to enlarge the operation space of electric wiring.
And chassis reform line 1 and sub vehicle frame chassis assembly line 2 are arranged in parallel, and the finished product that sub vehicle frame chassis assembly line 2 assembled is assembled to chassis reform line 1 on-machine station and chassis through driving hoist and mount, and chassis reform line 1 and assembly line 3 arrange in proper order along the body flow direction, and the finished product after chassis reform line 1 assembled is transported to assembly line 3 through manual driving mode straight line, effectively promotes production efficiency.
The process of combining a plurality of parts into a component or combining a plurality of parts and components into a product according to a specified technical requirement is called assembly, the process of assembling a plurality of parts into a component is called assembly, and the process of assembling a plurality of parts and components into a final product is called assembly. Line edge refers to the edge area of the production line. The line body flow direction refers to the direction of assembly line movement.
As a specific example, referring to fig. 1, three assembly lines of a chassis-remanufacturing line 1, a sub-frame chassis-assembling line 2, and a final assembly line 3 are arranged in the same cross region, i.e., a second cross region, based on the principle of the shortest physical distribution path, wherein the sub-frame chassis-assembling line 2 is arranged on the right side of the chassis-remanufacturing line 1, and the final assembly line 3 is arranged in front of the chassis-remanufacturing line 1. A material flow channel along the front-back direction is arranged between the chassis remanufacturing line 1 and the auxiliary frame chassis assembling line 2, material flow channels along the front-back direction are arranged on two sides of the general assembly line 3, a material flow channel along the left-right direction is arranged between the chassis remanufacturing line 1 and the general assembly line 3, and AGVs (Automated Guided Vehicle, namely an automatic guided vehicle) can be adopted for distributing materials required by the assembly of the three assembly lines. The chassis remanufacturing line 1, the auxiliary frame chassis assembling line 2 and the general assembly line 3 are all in the form of ground conveying lines, the assembly line operation can be realized according to beats, and the line body flow directions of the three assembly lines are consistent, namely, all flow from back to front according to the directions. In production operation, the chassis is manually driven to be transported to the chassis remanufacturing line 1 for assembly, finished products assembled by the auxiliary frame chassis assembling line 2 are lifted to an upper machine station of the chassis remanufacturing line 1 through a crane to be assembled with the chassis, the finished products assembled by the chassis remanufacturing line 1 are linearly transported to the final assembly line 3 through a manual driving mode, the final assembly line 3 is assembled to form a finished automobile, the finished automobile is taken off in a manual driving mode, and the assembly of the whole pump truck is completed. The on-machine station refers to a station for assembling parts on an assembly line.
Further, based on the shortest physical distribution path principle, the first cross-region and the third cross-region are respectively arranged in parallel on two sides of the second cross-region in combination with the site area condition, specifically, the first cross-region is located on the left side of the second cross-region, and the third cross-region is located on the right side of the second cross-region. In the first span region, a boom assembly line 10 is arranged, and in the third span region, a pumping unit line 8 and a rear leg line 9 are arranged, which may be sequentially arranged along the body flow direction. Of course, in the second cross-over region, if the right-hand region of the assembly line 3 has enough space to accommodate the pumping unit part line 8 and the rear leg part line 9, the pumping unit part line 8 and the rear leg part line 9 may be disposed at a position right of the assembly line 3 in the second cross-over region, so that the production line is more compact.
In a specific embodiment, a pumping unit air transfer line 4 is provided between the pumping unit assembly line 8 and the final assembly line 3, and a rear leg air transfer line 5 is provided between the rear leg assembly line 9 and the final assembly line 3. The pumping unit aerial conveying line 4 comprises a first annular track, and a trolley hoist capable of moving along the first annular track is arranged on the first annular track; the rear landing leg air conveying line 5 comprises a second annular rail, and a trolley hoist capable of moving along the second annular rail is arranged on the second annular rail. That is, the pumping unit air conveyance line 4 and the rear leg air conveyance line 5 each take a circular orbit, and the pumping unit completed at the pumping unit portion line 8 and the rear leg completed at the rear leg portion line 9 can be continuously conveyed to the final assembly line 3 for machine-on-machine assembly. The whole annular track is arranged on a hanger plate of a factory roof, and does not occupy the ground. The circular track is provided with a plurality of groups of trolley hoists, the trolley hoists can walk on the track, so that the actions of lifting, conveying, falling and the like of workpieces are realized, and particularly, the trolley hoists can walk on the track in a clockwise direction, so that the beat-based operation is realized.
The trolley hoist on the pumping unit air conveying line 4 directly lifts the pumping unit which is assembled directly on the last station of the pumping unit assembly line 8, then automatically conveys the pumping unit upper working lower part to the assembly line 3 for assembly, and after assembly, the empty trolley hoist returns to the upper part position. The trolley hoist on the rear landing leg air conveying line 5 directly lifts the partially assembled rear landing leg on the last station of the rear landing leg part assembly line 9, then automatically conveys the rear landing leg upper working lower part of the assembly line 3 to assemble, and after the assembly is completed, the empty trolley hoist returns to the upper part position. The automatic cross-over transfer sequence and the air buffer storage of the pumping unit and the large-scale parts of the rear support leg are realized through the pumping unit air conveying line 4 and the rear support leg air conveying line 5, and the problems of multiple lifting, logistics congestion, large occupied area for line side storage and the like existing in a ground conveying mode are solved. Wherein, the upper part refers to lifting of the workpiece, and the lower part refers to falling of the workpiece.
As a specific embodiment, referring to fig. 1, in the first span and the second span area, two rows of factory building columns are arranged along the left-right direction, that is, perpendicular to the arrangement direction of the first span and the second span, and the boom assembly upper machine on the assembly line 3 is located between the two rows of columns. The crane beam rails are arranged on the two rows of upright posts and used for the reciprocating operation of the special boom assembly hoisting machine 6, the special boom assembly hoisting machine 6 hoistes the part-mounted boom assembly from the last station of the boom assembly part line 10 to the upper boom assembly working machine on the assembly line 3 for the assembly of the boom assembly, and the part-mounted boom assembly is returned to the boom assembly part line 10 for the next hoisting after the assembly is completed. The problem that the vehicle needs to be moved to the arm support assembly part line 10 to carry out the assembly of the arm support assembly on the machine in the past is solved, the vehicle can be directly transferred in a cross-over order without transferring, the efficiency is high, and the ground material flow is reduced. Wherein, the boom assembly hoisting special machine 6 can be a crane.
Referring to fig. 3, the chassis remanufacturing line 1 is provided with a plurality of stations, and mainly completes the operation contents of chassis tail beam cutting, chassis accessory disassembly, chassis girder drilling, connecting plate assembly, chassis accessory recovery, transfer case assembly, transmission shaft assembly, pump assembly, auxiliary frame chassis part assembly on-machine, assembly, chassis electric wiring and the like. The chassis remanufacturing line 1 mainly comprises a first conveying line body 11, a chassis tail beam automatic cutting device 12, a first flexible hoisting system 13, a spare tire disassembly power assisting manipulator 14, a chassis girder drilling device 15, a chassis connecting plate tightening special machine 16 and other devices. Taking the chassis remanufacturing line 1 as an example, wherein 7 stations are arranged, the first conveying line body 11 adopts a plate chain line structure form, such as a plate chain conveyor, chassis tires fall on a chain plate and are used for carrying workpieces of all stations to be conveyed forward according to beats; the chassis tail beam automatic cutting equipment 12 is positioned at the first station and is used for cutting the chassis tail beam; the first flexible hoisting system 13 is in the form of a steel structure upright column, covers the second station area to the sixth station area, and is used for hanging a plurality of hoisting hoists for station hoisting operation. The hoisting hoist of the second station is used for hoisting in the process of disassembling the chassis accessory, the hoisting hoist of the fifth station is used for hoisting the transfer case and the transmission shaft in the process of assembling, and the hoisting hoist of the sixth station is used for hoisting the pump group in the process of assembling; the spare tire disassembly assistance manipulator 14 is positioned at the second station, is hung on the steel structure of the first flexible hoisting system 13 and is used for assisting in carrying in the process of disassembling the spare tire of the chassis; the chassis girder drilling equipment 15 is positioned at a third station and is arranged at two sides of the first conveying line body 11 and used for drilling connecting plate mounting holes on the left and right girders of the chassis; the chassis connecting plate tightening special machine 16 is arranged at a fourth station and hung on a steel structure of the first flexible hoisting system 13 for fixing and tightening bolts in the connecting plate assembling process. And hoisting the finished product assembled by the auxiliary frame chassis assembling line 2 to a seventh station of the chassis remanufacturing line 1 through a crane for assembling with the chassis.
Referring to fig. 4, the subframe chassis assembling line 2 is provided with a plurality of stations, and mainly completes operations such as subframe storage, subframe delivery and wire feeding, assembling of the chassis and the subframe, electrical wiring of the chassis part and the like. The auxiliary frame underframe assembly line 2 mainly comprises an auxiliary frame storage system 21, a second conveying line body 22, a second flexible hoisting system 23, an electric control cabinet assembly power assisting manipulator 24 and other devices. Taking the subframe underframe assembly line 2 as an example, three stations are arranged, wherein a subframe storage system 21 is positioned in a line head area of the second conveying line body 22 and is used for storing subframes, and the subframes with the required types can be automatically selected to be assembled for delivery and automatically conveyed to the first station of the second conveying line body 22; the second conveying line body 22 adopts a roller bed line structure form and is used for bearing workpieces and conveying the workpieces of each station forwards according to beats; the second flexible hoisting system 23 is in a steel structure column form and covers the second station area and the third station area, and a hoisting hoist is hung at the second station area and used for hoisting operation in the assembly process of workpieces such as an arm support oil tank and the like; the electric control cabinet assembly assisting manipulator 24 is arranged at the third station, and the equipment is hung on a steel structure of the second flexible hoisting system 23 and is used for assisting in carrying in the electric control cabinet assembly process.
Referring to fig. 5, the assembly line 3 is provided with a plurality of stations, and mainly completes the operation contents of a walking platen upper machine, a pumping unit upper machine, a vertical oil cylinder upper machine, bolt tightening, rubber pipe connection, a lower conveying pipe upper machine, a door plate upper machine, a rear supporting leg upper machine, lower accessory assembly, hydraulic oil filling, a boom assembly upper machine and the like, and after the whole vehicle assembly is completed, the whole vehicle is driven by a person to get off the line. The assembly line 3 mainly comprises a third conveying line body 31, a third flexible hoisting system 32, a vertical oil cylinder assembly power-assisted manipulator 33, a vertical oil cylinder bolt tightening special machine 34, hydraulic oil filling equipment 35, a multifunctional aerial work platform 36 and other equipment. Taking the example that the assembly line 3 is provided with 9 stations, wherein the third conveying line body 31 adopts a plate chain conveying line structure, such as a plate chain conveyor, chassis tires fall on chain plates and are used for bearing workpieces and conveying the workpieces of all stations forwards according to beats; the third flexible hoisting system 32 is in a steel structure column form and covers the areas from the first station to the seventh station, the third flexible hoisting system 32 is arranged below the pumping unit air conveying line 4 and the rear supporting leg air conveying line 5 and is not interfered with each other, a plurality of hoisting hoists are hung on the steel structure for hoisting operation of each station, the hoisting hoist of the first station is used for hoisting in the process of lifting a table, the hoisting hoist of the fourth station is used for hoisting in the process of lifting a valve block, the hoisting hoist of the fifth station is used for hoisting in the process of lifting a door plate, and the hoisting hoist of the sixth station is used for hoisting in the process of lifting a door plate; the vertical cylinder assembly assisting manipulator 33 is positioned at a third station and is hung on a steel structure of the third flexible hoisting system 32 for assisting in carrying the front support leg in the vertical cylinder assembly process; the vertical cylinder bolt tightening special machine 34 is positioned at a third station and hung on a steel structure of the third flexible hoisting system 32, and is used for fixing and tightening bolts in the front landing leg vertical cylinder assembly process; the hydraulic oil filling machine 35 is located at the eighth station and is used for quantitatively filling hydraulic oil to the pump truck; the multifunctional high-altitude operation platform 36 is positioned at the ninth station and is used for high-altitude operation in the process of loading the arm support assembly, equipment such as a cantilever crane, a pin pressing machine and a lubricating grease filling machine is integrated on the platform, so that the operation contents such as pin shaft hoisting, pin shaft press fitting and lubricating grease filling in the process of loading the arm support assembly can be completed; the pumping unit performs on-machine assembly by unloading at the second station through a pumping unit air conveying line 4; the rear supporting leg is assembled on the machine in a seventh station through a rear supporting leg air conveying line 5; and the arm support assembly is assembled on the ninth station through an arm support assembly hoisting special machine 6.
Corresponding power-assisted manipulators, high-altitude operation platforms, special screwing machines and other equipment are arranged on each assembly line such as the chassis remanufacturing line 1, the auxiliary frame chassis assembly line 2 and the assembly line 3, so that the production efficiency is improved, the labor intensity of operators is reduced, and the operation safety is ensured.
Referring to fig. 2, in order to implement transparency and visualization of the production process, the whole assembly line is provided with a set of line informatization system, which mainly comprises a line control system 71, line controllers 72, and individual machine control systems 73, wherein the line controllers 72 may be line PLCs. The whole machine assembly production line is provided with a set of production line control system 71, the production line control system 71 divides a plurality of sub-lines, and each sub-line is provided with a set of line body controller 72. The line control system 71 is configured to receive production order information sent by an MES (manufacturing process execution system) and send the production order information to each line controller 72, and the line controllers 72 are configured to collect relevant data information (such as bolt tightening data, oil filling amount, etc.) of each line body, and transmit the relevant data information to the line control system 71, and then the relevant data information is uploaded to the MES by the line control system 71. And, the production line control system 71 is also connected with a plurality of special machine control systems 73, and the special machine control systems 73 are used for controlling the operation of various devices such as the chassis tail beam automatic cutting device 12, the spare tire disassembly assisting manipulator 14, the chassis girder drilling device 15, the chassis connecting plate tightening special machine 16, the auxiliary frame storage system 21, the electric cabinet assembly assisting manipulator 24, the vertical oil cylinder assembly assisting manipulator 33, the vertical oil cylinder bolt tightening special machine 34, the hydraulic oil filling device 35, the multifunctional aerial work platform 36 and the like. Based on an MES system, the production plan is controlled on site with the workshop, and the whole production process from order placement to product completion is optimally managed by an execution system.
In the above-mentioned various embodiments, for the boom assembly hoisting special machine 6, the first conveying line 11, the chassis tail beam automatic cutting device 12, the first flexible hoisting system 13, the spare tire disassembly assisting manipulator 14, the chassis girder drilling device 15, the chassis connecting plate tightening special machine 16, the auxiliary frame storage system 21, the second conveying line 22, the second flexible hoisting system 23, the electric cabinet assembling assisting manipulator 24, the third conveying line 31, the third flexible hoisting system 32, the vertical cylinder assembling assisting manipulator 33, the vertical cylinder bolt tightening special machine 34, the hydraulic oil filling device 35, the multifunctional aerial work platform 36 and other devices, and the production line control system 71, the line body controller 72, the special machine control system 73, the MES and other control technologies, those skilled in the art can select the above-mentioned various devices and control technologies specifically on the basis of knowing the technical scheme of the present invention, so that the technical scheme of the present invention is realized, and therefore, the detailed description is omitted here.
Referring to fig. 1 to 5, the complete machine assembly line of the preferred embodiment of the present invention includes a chassis remanufacturing line 1, a subframe underframe assembly line 2, a final assembly line 3, a pumping unit aerial transfer line 4, a rear leg aerial transfer line 5, a boom assembly hoist special machine 6, a production line informatization system, a pumping unit assembly line 8, a rear leg assembly line 9, and a boom assembly line 10, three assembly lines of the chassis remanufacturing line 1, the subframe underframe assembly line 2, and the final assembly line 3 are arranged in a second span region, the chassis remanufacturing line 1 and the subframe underframe assembly line 2 are arranged in parallel, the chassis remanufacturing line 1 and the final assembly line 3 are arranged in sequence along the body flow direction, the boom assembly line 10 is arranged in the first span region, the pumping unit assembly line 8 and the rear leg assembly line 9 are arranged in the third span region, and the first span region and the third span region are arranged in parallel on both sides of the second span region, respectively. And a pumping unit air conveying line 4 is arranged between the pumping unit part line 8 and the assembly line 3, the pumping unit air conveying line 4 can convey the pumping unit to the assembly line 3 for machine installation, a rear support leg air conveying line 5 is arranged between the rear support leg part line 9 and the assembly line 3, the rear support leg air conveying line 5 can convey the rear support leg to the assembly line 3 for machine installation, two rows of factory building upright posts are arranged in the first span and the second span area along the left-right direction, namely, the arrangement direction of the first span and the second span is perpendicular to the arrangement direction of the first span, and the boom assembly upper machine on the assembly line 3 is positioned between the two rows of upright posts. The crane beam rails are arranged on the two rows of upright posts and used for the reciprocating operation of the special boom assembly hoisting machine 6, the special boom assembly hoisting machine 6 hoistes the part-mounted boom assembly from the last station of the boom assembly part line 10 to the upper boom assembly working machine on the assembly line 3 for the assembly of the boom assembly, and the part-mounted boom assembly is returned to the boom assembly part line 10 for the next hoisting after the assembly is completed. The production line informatization system mainly comprises a production line control system 71, a line body controller 72, a special machine control system 73 and the like, wherein the line body controller 72 can be a line body PLC. The whole machine assembly production line is provided with a set of production line control system 71, the production line control system 71 divides a plurality of sub-lines, and each sub-line is provided with a set of line body controller 72. The line control system 71 is configured to receive production order information sent by an MES (manufacturing process execution system) and send the production order information to each line controller 72, and the line controllers 72 are configured to collect relevant data information (such as bolt tightening data, oil filling amount, etc.) of each line body, and transmit the relevant data information to the line control system 71, and then the relevant data information is uploaded to the MES by the line control system 71. And, the production line control system 71 is also connected with a plurality of special machine control systems 73, and the special machine control systems 73 are used for controlling the operation of various devices in the chassis remanufacturing line 1, the auxiliary frame underframe assembly line 2, the general assembly line 3, the pumping unit air conveying line 4, the rear landing leg air conveying line 5, the boom assembly hoisting special machine 6, the pumping unit assembly line 8, the rear landing leg assembly line 9, the boom assembly line 10 and the like.
The invention optimizes the process route, adjusts the electric wiring operation to the assembly of the chassis remanufacturing line 1 and the auxiliary frame chassis assembling line 2, has no limitation on the operation space, solves the problem that the electric wiring can be carried out only by starting the vehicle to open the front and rear supporting legs of the pump, realizes the pipelining operation, greatly shortens the manufacturing period and has small occupied area. The pumping unit and the rear landing leg and other large-sized components are assembled from the automatic cross-over sequence of the component assembly line to the total assembly line 3 directly by adopting the pumping unit air conveying line 4, the rear landing leg air conveying line 5 and other air conveying lines, the working procedures are effectively linked, the large-sized components are efficiently and effectively transferred and cached in the air, the hoisting times are reduced, the line edge cache area is not needed, and the ground logistics is not influenced. The factory building structure is optimized, the upright columns perpendicular to the arrangement direction of the first span and the second span are arranged, the crane beam rail is erected, the trafficability of the special hoisting machine 6 for the arm support assembly to pass through the span operation is achieved, the arm support assembly can directly pass through the span sequence, the vehicle is not required to be transferred, the efficiency is high, and the ground object flow is reduced. The power-assisted mechanical arm, the aerial working platform, the special tightening machine and other equipment are configured, so that the production efficiency is improved, the labor intensity of operators is reduced, and the operation safety is ensured. The key data information of the production process is collected, so that the uploading is traceable, and the transparency of the production process is realized.
In the above embodiments, the invention is mainly described with respect to the concrete pump truck complete machine assembly, and it is understood that the complete machine assembly line is also applicable to products having similar structural forms and assembly methods.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the invention are not described in detail in order to avoid unnecessary repetition.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.
Claims (10)
1. The utility model provides a complete machine assembly production line, its characterized in that includes chassis reform line (1), sub vehicle frame chassis assembly line (2), assembly line (3), pumping unit portion line (8), back landing leg portion line (9) and cantilever crane assembly portion line (10), chassis reform line (1) and sub vehicle frame chassis assembly line (2) are arranged in parallel, chassis reform line (1) and assembly line (3) are arranged in proper order along the body flow direction, assembly line (3) is arranged in the place ahead of chassis reform line (1), pumping unit portion line (8) and back landing leg portion line (9) are arranged in one side of assembly line (3), and pumping unit portion line (8) with be arranged between assembly line (3) can carry pumping unit to pumping unit air transfer chain (4) of assembly line (3) go on the assembly, back landing leg portion line (9) with be arranged between assembly line (3) can carry back landing leg portion to assembly line (3) carries out the back landing leg portion (5) is arranged in assembly line (3) the opposite side of assembly line (5).
2. The complete machine assembly line according to claim 1, characterized in that the chassis retrofitting line (1), sub-frame chassis assembly line (2) and assembly line (3) are arranged in a second cross-section.
3. The complete machine assembly line according to claim 2, characterized in that the pumping unit assembly line (8) and the rear leg assembly line (9) are arranged in a third cross-zone, which is arranged adjacent and in parallel to the second cross-zone, the pumping unit assembly line (8) and the rear leg assembly line (9) being arranged in sequence along the line body flow direction.
4. The complete machine assembly line according to claim 2, characterized in that the boom assembly line (10) is arranged in a first cross-zone, which is arranged adjacent and parallel to the second cross-zone.
5. The complete machine assembly line according to any one of claims 1 to 4, characterized in that the pumping unit air conveyor line (4) comprises a first endless track on which trolley hoists are provided, which are movable along the first endless track; the rear landing leg air conveying line (5) comprises a second annular track, and a trolley hoist capable of moving along the second annular track is arranged on the second annular track.
6. The complete machine assembly line according to any one of claims 1 to 4, characterized in that the chassis remanufacturing line (1) comprises a first conveying line body (11), a chassis tail boom automatic cutting device (12), a first flexible hoisting system (13), a spare tire disassembly power assisting manipulator (14), a chassis girder drilling device (15) and a chassis connecting plate tightening special machine (16), the chassis tail boom automatic cutting device (12) and the first flexible hoisting system (13) are sequentially arranged along the line body flow direction of the first conveying line body (11), the spare tire disassembly power assisting manipulator (14) and the chassis connecting plate tightening special machine (16) are both suspended on the first flexible hoisting system (13), and the spare tire disassembly power assisting manipulator (14), the chassis girder drilling device (15) and the chassis connecting plate tightening special machine (16) are sequentially arranged along the line body flow direction of the first conveying line body (11).
7. The complete machine assembly line according to any one of claims 1 to 4, wherein the subframe underframe assembly line (2) comprises a subframe storage system (21), a second conveying line body (22), a second flexible hoisting system (23) and an electric cabinet assembly assisting manipulator (24) which are sequentially arranged, the subframe storage system (21) and the second flexible hoisting system (23) are sequentially arranged along the line body flow direction of the second conveying line body (22), and the electric cabinet assembly assisting manipulator (24) is suspended on the second flexible hoisting system (23).
8. The complete machine assembly line according to any one of claims 1 to 4, wherein the final assembly line (3) comprises a third conveying line body (31), a third flexible hoisting system (32), a vertical cylinder assembly booster manipulator (33), a vertical cylinder bolt tightening special machine (34), a hydraulic oil filling device (35) and a multifunctional aerial work platform (36) which are sequentially arranged, the third flexible hoisting system (32), the hydraulic oil filling device (35) and the multifunctional aerial work platform (36) are sequentially arranged along the line body flow direction of the third conveying line body (31), and the vertical cylinder assembly booster manipulator (33) and the vertical cylinder bolt tightening special machine (34) are suspended on the third flexible hoisting system (32).
9. The complete machine assembly line according to claim 8, characterized in that the third flexible hoisting system (32) is located below the pumping unit air conveyor line (4) and the rear leg air conveyor line (5).
10. The complete machine assembly line according to any one of claims 1 to 4, further comprising a line informatization system, wherein the line informatization system comprises a line control system (71) in communication connection with the MES, a plurality of line controllers (72) for collecting data information of each line, and a plurality of special machine control systems (73) for controlling the operation of the equipment, and the line controllers (72) and the special machine control systems (73) are in communication connection with the line control system (71).
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| CN114802543A (en) | 2022-07-29 |
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