CN114406620B - Production and manufacturing process of main steel structural part of hydraulic material grabbing machine - Google Patents
Production and manufacturing process of main steel structural part of hydraulic material grabbing machine Download PDFInfo
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- CN114406620B CN114406620B CN202210100829.3A CN202210100829A CN114406620B CN 114406620 B CN114406620 B CN 114406620B CN 202210100829 A CN202210100829 A CN 202210100829A CN 114406620 B CN114406620 B CN 114406620B
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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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention discloses a production and manufacturing process of a steel structural member of a hydraulic material grabbing machine body. According to the invention, the three whole machine main body component walking components, the working mechanism and the platform assembly are disassembled and thinned into smaller structural bodies, and the process flow of the whole machining is finished on the structural members with smaller machining size in advance by reasonably planning the assembly welding sequence, so that the requirements on the machining stroke of machining equipment are lower, the machining is faster, the energy consumption is lower, and the large manufacturing cost of the whole machining of the large-sized components of the whole machine is successfully avoided.
Description
Technical Field
The invention relates to the technical field of hydraulic type grabbing machines with dead weight of 42T, in particular to a production and manufacturing process of a main steel structural member of a hydraulic type grabbing machine.
Background
The equipment manufacturing industry is a state heavy machine, and the equipment for grabbing steel, grabbing wood and grabbing ore … … is widely applied to the material grabbing machine. The novel self-weight 42T hydraulic grabbing machine is a self-developed product of our company, and has the characteristics of higher stability, high degree of automation, wide working range, high working efficiency, energy conservation, environmental protection, energy consumption and the like. The production and manufacturing process of the equipment is suitable, the production and manufacturing efficiency can be improved, the manufacturing cost is saved, the novel equipment is promoted to the market, and the market share is improved.
Disclosure of Invention
In order to solve the problems, the invention provides a production and manufacturing process of a main steel structural member of a hydraulic grabbing machine, which is used for ensuring the requirements of high precision and high quality of finished equipment components, improving the working efficiency of production and manufacturing, avoiding the higher cost of integral machining of large-scale components, pushing the machined work to smaller structural members to finish the machining by reasonably planning a process route, and ensuring the integral precision of the finished products by using a tool. With lower manufacturing cost, the market share of the boosting product.
In order to achieve the above object, the present invention is realized by the following technical scheme:
the invention relates to a production and manufacturing process of a steel structural member of a hydraulic material grabbing machine main body, which comprises a walking assembly, a working assembly and a platform assembly, and comprises the following steps:
step 1, processing a walking assembly:
step 1.1, manufacturing a left track beam and a right track beam: the left crawler beam and the right crawler beam comprise a beam body, a speed reducer seat and a guide seat, the beam body, the speed reducer seat and the guide seat are manufactured independently, the beam body is used as a positioning section on a crawler Liang Gelong installation positioning tool, the speed reducer seat and the guide seat are folded and positioned, and welding is performed after the assembly precision is measured;
step 1.2, manufacturing a base: the base comprises an X-shaped box body beam and an upper flange seat, wherein a line is drawn on a bottom plate of the X-shaped box body beam when the X-shaped box body beam is processed, a positioning center reference is determined, then a middle cylinder, a vertical plate and a top plate are hoisted and welded, and when the upper flange seat is folded with the X-shaped box body beam, an upper ring on the upper flange seat is concentric with the middle cylinder and a welding seam is welded by 100%UT;
step 1.3, folding the left crawler beam, the right crawler beam and the base, and installing accessories;
step 2, manufacturing a platform assembly: the platform assembly comprises a main platform, a left auxiliary platform and a right auxiliary platform, and the main platform, the left auxiliary platform and the right auxiliary platform are assembled, welded and corrected and then folded;
step 3, manufacturing a working assembly: the device comprises a movable arm and a bucket rod, wherein the movable arm adopts a reverse building method, a horizontal plane is used as a reference tire position for scribing and manufacturing, a bucket rod structure adopts a side building method, and the horizontal plane is used as the reference tire position for building;
and 4, assembling the walking assembly, the working assembly and the platform assembly to form the steel structure main body of the hydraulic grabbing machine.
The invention further improves that: the accessories installed in the step 1.3 comprise steps and pipeline clamps on the left crawler beam and the right crawler beam, and the steps and the pipeline clamps are welded and fixed.
The invention further improves that: the specific steps of the step 2 are as follows:
step 2.1, manufacturing a main platform;
step 2.11, machining the components to be bent by cold working in advance according to the drawing requirements, and turning a structure workshop for installation after the components are detected to be qualified;
step 2.12, prefabricating two side edge components of the main platform, wherein the front hinge point ear plate and the heavy weight plate are in advance of a group and are symmetrical left and right;
step 2.13, welding the bottom middle plate with the turntable flange bottom plate in a splicing way, assembling the side assemblies with the turntable flange bottom plate, knocking out a punching hole, and determining a reference center line;
step 2.14, fixing the upper horizontal jig frame firmly, marking a flange hole as a center, knocking out the ocean punch by using the center line, sequentially installing three bending pieces for connecting two side assemblies in place, sequentially hoisting the preceding subgroups manufactured in the step 2.12, and starting the gear by +2mm;
step 2.15, orderly welding the assembled components, confirming the size after welding, sequentially installing the middle hinge point lug plates in place, ensuring +2mm before the top lug plate opening size is welded, and finishing welding the middle flange plate in place according to the size;
step 2.16, welding three front side bending plates on the front side of the turntable flange base plate according to the whole size;
step 2.17, installing a tail end head balancing weight fixing plate, wherein the height is 312+/-0.5, and the whole machine milling surface is reserved;
step 2.18, after the whole assembly welding is finished and the correction is qualified, turning the part into a whole machine for machining;
step 2.2, manufacturing a left auxiliary platform and a right auxiliary platform: the left platform and the right platform are manufactured on the platform directly according to the ground sample detection line during manufacturing, the peripheral dimension is required to have a positive tolerance requirement before welding, all Kong Zanbu on the upper part are perforated, and finally, the whole is perforated by a drilling jig, and the shrinkage is 1 per mill during assembly and manufacturing;
step 2.3, folding;
step 2.31, assembling and welding the left auxiliary platform and the right auxiliary platform according to the main platform as a reference, so as to ensure that the whole size is qualified;
step 2.32, drilling holes of the left auxiliary platform and the right auxiliary platform by using a drilling jig;
and 2.33, after the processing is finished, the rest small parts which are not installed are sequentially installed in the structural workshop.
The invention further improves that: the specific steps of the step 3 are as follows:
step 3.1, manufacturing a movable arm:
step 3.11, reversely working the horizontal upper tire of the movable arm top plate after each machined part is ready, and marking out a structural line according to the drawing requirement by taking the central line of the length direction of the movable arm top plate as a reference;
step 3.12, sequentially installing 5 internal baffles, positioning according to requirements, sequentially hoisting movable arm side plates with processed two sides, fixing two support pipes between the two movable arm side plates in a state of being perpendicular to a central line, simultaneously assembling rib plates around the support pipes, and welding and fixing;
step 3.13, one end of the movable arm is provided with a hole for a shaft to pass through, two movable arm side plates at the other end of the movable arm are provided with arc-shaped openings for fixing end head shaft tubes, the end head shaft tubes are installed by taking the hole at the other end as a reference, the shrinkage is 1 per mill, and the end head shaft tubes are perpendicular to the central line of the structure to form a movable arm with three-face forming;
step 3.14, orderly welding the movable arms formed on three sides according to the welding process requirement, ensuring the firmness of sealing the tire, polishing the inside after welding, and integrally correcting the side plates;
step 3.15, hanging the whole movable arm bottom plate by the detection size, welding according to the requirement after positioning, assembling and welding the support lug plate on the outer side of the support pipe according to the whole section size after correcting and passing the requirement, assembling a heavy plate of the support lug plate, wherein machining allowance of a 5mm milling surface machine is respectively arranged on two sides of the heavy plate, and the opening size is 112+/-1;
step 3.16, welding accessories on the movable arm top plate according to the drawing size, and independently turning the movable arm into a whole for machining after the whole is manufactured;
step 3.2, manufacturing a bucket rod;
step 3.21, cold working the bucket rod top plate and the bucket rod bottom plate with radians according to requirements, and welding the bucket rod side plates in a splicing way;
step 3.22, fixing one side bucket rod side plate by using a horizontal jig frame, scribing, installing a plurality of partition boards and bucket rod bottom boards, hoisting one side bucket rod side plate of the collar in place according to requirements after sequential positioning, positioning and fixing, and orderly welding according to welding process requirements after three-face forming;
step 3.23, inserting pipe fittings, correcting the overall size after welding, sequentially assembling and welding a head cylinder sleeve and a tail cylinder sleeve, assembling and welding a bucket rod top plate according to drawing requirements, and welding a plug welding hole;
step 3.24, detaching the tire, re-measuring the size, correcting the whole flame in a free state according to the requirement to be qualified, sequentially assembling and welding the support lug plate and the heavy weight plate at two ends of the pipe fitting according to the requirement after detecting the size without errors, and respectively leaving machining milling surface allowance of 5mm at two sides in the heavy weight plate, wherein the assembly starting size is 112+/-1;
and 3.25, installing the accessory according to the size.
The invention further improves that: in the step 3.11, the length direction is marked according to the welding shrinkage of 1/1000 of the drawing requirement in the marking process.
The beneficial effects of the invention are as follows: the process of the invention is to split and refine three whole machine main body components of the hydraulic grabbing machine main body steel structure into smaller structural bodies, and the process flow of the whole machining is finished on the structural components with smaller machining size by reasonably planning the assembly welding sequence, so that the requirement on the machining stroke of machining equipment is lower, the machining is faster, the energy consumption is lower, and the large manufacturing cost of the whole machining of the large-sized structural components of the whole machine is successfully avoided.
Drawings
Fig. 1 is a top view of a walking assembly.
Fig. 2 is a side view of the walking assembly.
Fig. 3 is a rear view of the walking assembly.
Fig. 4 is a schematic view of a portion of a main platform.
Fig. 5 is a side view of the main platform.
Fig. 6 is a left sub-platform schematic.
FIG. 7 is a schematic view of a platform assembly.
Fig. 8 is a schematic diagram of a boom.
Fig. 9 is a top view of the boom.
Fig. 10 is a schematic view of a stick.
Fig. 11 is a top view of the stick.
Wherein: 1-walking components, 101-left crawler beams, 102-right crawler beams, 103-beam bodies, 104-speed reducer bases, 105-guide bases, 106-X-shaped box beams, 1061-middle cylinders, 107-upper flange bases, 1071-upper rings, 2-working components, 201-movable arms, 2011-inner partition boards, 2012-supporting pipes, 2013-end shaft pipes, 2014-supporting ear boards, 202-bucket rods, 2021-pipe pieces, 2022-head cylinder assemblies, 2023-tail cylinder assemblies, 3-platform assemblies, 301-main platform, 3011-side edge assemblies, 3012-bottom middle boards, 3013-turntable flange bottom boards, 3014-turntable flanges, 3015-bending pieces, 3016-counterweight fixing boards, 3017-front hinge point ear boards, 302-left auxiliary platform, 303-right auxiliary platform,
Detailed Description
The present invention will be further described in detail with reference to the following examples, which are only for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
1-11, the invention relates to a production and manufacturing process of a main body steel structural member of a hydraulic material grabbing machine, wherein the main body steel structural member of the material grabbing machine comprises a traveling assembly 1, a working assembly 2 and a platform assembly 3;
the walking assembly 1 is split into three small components of a left crawler beam, a base and a right crawler beam, the three components are assembled, welded and machined in place and then folded, the whole machining process flow direction of the large component of the walking assembly 1 is finished on the small component in the earlier stage, the requirement on the machining stroke of machining equipment is lower, the machining is faster, the energy consumption is lower, and meanwhile, the machining association precision required by the finished large component of the walking assembly 1 can be ensured to meet the design requirement.
The left track beam component and the right track beam component are refined and split into three parts of a speed reducer seat, a beam and a guide wheel seat, and are assembled, welded, corrected and machined in place and then folded, the folding assembly and welding precision is effectively controlled through a self-designed tool, the working efficiency is improved, the process flow direction of the whole machining of the track beam component is finished on the earlier stage smaller component, the requirement on the machining stroke of machining equipment is lower, and the cost is lower. Meanwhile, the finishing precision and quality of the track beam component are guaranteed.
The base of the walking assembly 1 is split into an X box body and an upper flange seat, and the X box body and the upper flange seat are assembled, welded and corrected respectively, then folded and welded, and finally machined integrally, so that the machining precision of the upper flange seat is ensured. The assembly welding sequence of each part in the X box body and the upper flange seat component is reasonably planned, so that the welding deformation can be effectively controlled, the processing amount of the whole machining of the flange surface is reduced to the maximum extent, the energy consumption is effectively saved, and the manufacturing cost is reduced.
The walking assembly 1 base and the crawler Liang Gelong are assembled and positioned and locked by self-made tools, so that the assembly positioning difficulty is reduced, the assembly efficiency and the assembly precision are improved, and the influence of deformation generated by welding on the overall dimensional precision of the component is effectively reduced by reasonably planning the welding sequence and the welding method. Ensuring that the associated dimensional tolerances between the machined locations of the small components are ensured. Thereby avoiding the substantial manufacturing costs associated with the overall machining of large components.
The movable arm component of the working mechanism adopts a reverse construction method, the horizontal plane is used as a reference tire position for scribing, then the assembly sequence of each part is reasonably planned, the welding shrinkage allowance is preset, the proper welding sequence is planned, the influences of welding deformation and welding shrinkage on the whole working size of the component are reduced in the modes of tire sealing welding and the like, the machining allowance of boring three shaft holes of the whole final component is minimized, and the energy consumption is reduced.
The bucket rod structure of the working mechanism is built by adopting a side building method by taking a horizontal plane as a reference tire position, so that the manufacturing cost of a curve tire frame is avoided, the welding shrinkage allowance is preset by reasonably planning the assembly sequence of each part, the influence of deformation of a component caused by the internal stress concentration of steel due to heat input in the operations of blanking, welding and the like is controlled and timely eliminated, and the finishing quality and precision are ensured to meet the design requirement.
The platform assembly 3 is split into three small structures of the main platform 301, the left auxiliary platform and the right auxiliary platform, the three structures are assembled, welded and corrected respectively, and then folded, through setting a transfer standard, welding shrinkage allowance is preset, the assembly sequence of each part is reasonably planned, small tools such as a dummy shaft, a positioning template and the like are used in the assembly process, the assembly precision is ensured, the large cost of drilling holes, boring holes and the like of the whole machine of a component is avoided, the holes for installing electrical equipment with large quantity on the platform assembly 3 are drilled by using a drilling jig manually and magnetically, and the precision is ensured and the large manufacturing cost of an upper machine tool is avoided.
The specific processing steps are as follows:
step 1, processing of a walking assembly 1:
step 1.1, manufacturing a left track beam 101 and a right track beam 102: the left crawler beam 101 and the right crawler beam 102 comprise a beam body 103, a speed reducer base 104 and a guide seat 105, the beam body 103, the speed reducer base 104 and the guide seat 105 are manufactured independently, the beam body 103 is used as a positioning section on a crawler Liang Gelong installation positioning tool, the speed reducer base 104 and the guide seat 105 are folded and positioned, and welding is performed after the assembly precision is measured;
step 1.2, manufacturing a base: the base comprises an X-shaped box girder 106 and an upper flange seat 107, wherein a line is drawn on a bottom plate of the X-shaped box girder 106 when the X-shaped box girder 106 is processed, a positioning center reference is determined, then a middle cylinder 1061, a vertical plate and a top plate are hoisted and welded, when the upper flange seat 107 is folded with the X-shaped box girder 106, an upper ring 1071 on the upper flange seat 107 is concentric with the middle cylinder 1061, and a welding seam is welded by 100%UT;
in this step, the middle cylinder 1061 and the upper ring 1071 are reinforced by a Mi-shaped support before welding to prevent welding deformation and out of round, the top plate is corrected by turning over the front workpiece of the cover plate, and is welded symmetrically during welding, and low current is used for priming.
Step 1.3, folding the left track beam 101 and the right track beam 102 with the base, and installing accessories; wherein the accessories comprise steps and pipeline clamps on the left track beam 101 and the right track beam 102, and the steps and the pipeline clamps are welded and fixed.
Step 2, manufacturing a platform assembly 3: the platform assembly 3 comprises a main platform 301, a left auxiliary platform 302 and a right auxiliary platform 303, which are assembled, welded and corrected and then folded;
step 2.1, a main platform 301 is manufactured;
step 2.11, machining the components to be bent by cold working in advance according to the drawing requirements, and turning a structure workshop for installation after the components are detected to be qualified;
step 2.12, prefabricating two side edge components 3011 of the main platform 301, wherein the front hinge point ear plate 3017 and the weight plate are in advance of a group and are symmetrical left and right;
step 2.13, welding the bottom middle plate 3012 with the turntable flange base plate 3013, assembling the side assemblies 3011 with the turntable flange 3014, knocking out a hole, and determining a reference center line;
step 2.14, fixing the upper horizontal jig frame firmly, marking a flange hole as a center, knocking out the ocean punch by using the center line, sequentially installing three bending pieces 3015 connected with two side assemblies 3011 in place, sequentially hoisting the preceding subgroups manufactured in step 2.12, and starting gear +2mm;
step 2.15, orderly welding the assembled components, confirming the size after welding, sequentially installing the middle hinge point lug plates in place, ensuring +2mm before the top lug plate opening size is welded, and finishing welding the middle flange plate in place according to the size;
step 2.16, welding three front side bending plates on the front side of the turntable flange base plate 3013 according to the overall size;
step 2.17, installing a tail end head balancing weight fixing plate 3016, wherein the height is 312+/-0.5, and the whole machine milling surface is reserved;
step 2.18, after the whole assembly welding is finished and the correction is qualified, turning the part into a whole machine for machining;
step 2.2, manufacturing a left auxiliary platform 302 and a right auxiliary platform 303: the left platform and the right platform are manufactured on the platform directly according to the ground sample detection line during manufacturing, the peripheral dimension is required to have a positive tolerance requirement before welding, all Kong Zanbu on the upper part are perforated, and finally, the whole is perforated by a drilling jig, and the shrinkage is 1 per mill during assembly and manufacturing;
step 2.3, folding;
step 2.31, according to the main platform 301 as a reference, assembling and welding the left auxiliary platform 302 and the right auxiliary platform 303 with the main platform to ensure that the whole size is qualified;
step 2.32, drilling holes of the left auxiliary platform 302 and the right auxiliary platform 303 by using a drilling jig;
and 2.33, after the processing is finished, the rest small parts which are not installed are sequentially installed in the structural workshop.
Step 3, manufacturing a working assembly 2: the device comprises a movable arm 201 and a bucket rod 202, wherein the movable arm 201 is manufactured by adopting a reverse building method, a horizontal plane is used as a reference tire position for scribing, a bucket rod 202 structure is manufactured by adopting a side building method, and the horizontal plane is used as the reference tire position for building;
step 3.1, manufacturing the movable arm 201:
step 3.11, reversely working the horizontal upper tire of the movable arm top plate after each machined part is ready, marking out a structural line according to the drawing requirement by taking the central line of the length direction of the movable arm top plate as a reference, and marking out the length direction by taking strict 1/1000 welding shrinkage quantity according to the drawing requirement as a reference;
step 3.12, sequentially installing 5 inner partition plates 2011, positioning according to requirements, sequentially hoisting movable arm side plates with processed two sides, fixing two support pipes 2012 between the two movable arm side plates in a state of being perpendicular to a central line, simultaneously assembling rib plates around the support pipes 2012, welding and fixing, and adopting single-sided welding at positions, which are not good to be welded, inside the rib plates during welding;
step 3.13, one end of the movable arm 201 is provided with a hole for a shaft to pass through, two movable arm side plates at the other end of the movable arm 201 are provided with arc-shaped openings for fixing end head shaft tubes, the end head shaft tubes are installed by taking the hole at the other end as a reference, the shrinkage is 1 per mill, and the end head shaft tubes 2013 are perpendicular to the central line of the structure to form the movable arm 201 with three-face formation;
step 3.14, orderly welding the movable arm 201 with three-side forming according to the welding process requirement, ensuring the firm sealing of the tire, paying attention to two welders to weld simultaneously from two sides to the same direction during welding, polishing the inside after welding, and correcting the whole side plate, thereby meeting the drawing size requirement;
step 3.15, hanging the whole movable arm bottom plate by the detection size, welding according to the requirement after positioning, assembling and welding the support ear plate 2014 on the outer side of the support tube 2012 according to the whole section size after correcting and passing the requirement, and assembling a heavy plate of the support ear plate, wherein the machining allowance of a 5mm milling machine is respectively arranged on two sides of the heavy plate, and the starting size is 112+/-1;
step 3.16, welding the lug plate, the wire seat, the pipe clamp seat and the related accessories on the movable arm top plate according to the drawing size, and independently turning the movable arm 201 into a whole for machining after the whole is manufactured,
step 3.2, manufacturing a bucket rod 202;
step 3.21, cold working the bucket rod top plate with radian and the bucket rod 202 bottom plate according to requirements, and welding the bucket rod side plates in a splicing way;
step 3.22, fixing a side bucket rod side plate by using a horizontal jig frame, scribing, installing a plurality of partition boards and a bucket rod bottom plate, hoisting the side bucket rod side plate on one side in place according to requirements after orderly positioning, positioning and fixing, orderly welding according to welding process requirements after three-face forming, considering turning welding on site, ensuring whole flatness, welding in a non-twistable state, and ensuring no twisting phenomenon after welding; correcting the overall flatness of the side plates according to the requirements after welding, and ensuring that the side plates meet the drawing size;
step 3.23, inserting the pipe 2021, correcting the overall size after welding, sequentially assembling and welding the head cylinder sleeve 2022 and the tail cylinder sleeve 2023, assembling and welding the bucket rod top plate according to the drawing requirements, and welding the plug welding holes;
step 3.24, detaching the tire, re-measuring the size, correcting the whole flame in a free state according to the requirement, sequentially welding the support lug plate and the heavy plate at two ends of the pipe 2021 according to the requirement after detecting the size, and respectively leaving 5mm machining milling surface allowance at two sides in the heavy plate, wherein the assembly gear opening size is 112+/-1;
and 3.25, installing the accessory according to the size.
And 4, assembling the walking assembly 1, the working assembly 2 and the platform assembly 3 to form a hydraulic type grabbing machine steel structure main body.
According to the invention, the welding difficulty of overhead welding is avoided in welding, automatic and semi-automatic flat angle welding is adopted, so that the welding appearance of the whole equipment is attractive, the welding deformation of each welding procedure can be accurately controlled, and the machining quantity of the fire correction and the subsequent component machining is reduced, thereby further reducing the manufacturing cost.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (4)
1. The production manufacturing process of the hydraulic type grabbing machine main body steel structural member comprises a walking assembly, a working assembly and a platform assembly, and is characterized in that: the method comprises the following steps:
step 1, processing a walking assembly:
step 1.1, manufacturing a left track beam and a right track beam: the left crawler beam and the right crawler beam comprise a beam body, a speed reducer seat and a guide seat, the beam body, the speed reducer seat and the guide seat are manufactured independently, the beam body is used as a positioning section on a crawler Liang Gelong installation positioning tool, the speed reducer seat and the guide seat are folded and positioned, and welding is performed after the assembly precision is measured;
step 1.2, manufacturing a base: the base comprises an X-shaped box body beam and an upper flange seat, wherein a line is drawn on a bottom plate of the X-shaped box body beam when the X-shaped box body beam is processed, a positioning center reference is determined, then a middle cylinder, a vertical plate and a top plate are hoisted and welded, and when the upper flange seat is folded with the X-shaped box body beam, an upper ring on the upper flange seat is concentric with the middle cylinder and a welding seam is welded by 100%UT;
step 1.3, folding the left crawler beam, the right crawler beam and the base, and installing accessories;
step 2, manufacturing a platform assembly: the platform assembly comprises a main platform, a left auxiliary platform and a right auxiliary platform, and the main platform, the left auxiliary platform and the right auxiliary platform are assembled, welded and corrected and then folded;
step 3, manufacturing a working assembly: the device comprises a movable arm and a bucket rod, wherein the movable arm adopts a reverse building method, a horizontal plane is used as a reference tire position for scribing and manufacturing, a bucket rod structure adopts a side building method, and the horizontal plane is used as the reference tire position for building;
step 4, assembling the walking assembly, the working assembly and the platform assembly to form a steel structure main body of the hydraulic grabbing machine;
the specific steps of the step 2 are as follows:
step 2.1, manufacturing a main platform;
step 2.11, machining the components to be bent by cold working in advance according to the drawing requirements, and turning a structure workshop for installation after the components are detected to be qualified;
step 2.12, prefabricating two side edge components of the main platform, wherein the front hinge point ear plate and the heavy weight plate are in advance of a group and are symmetrical left and right;
step 2.13, welding the bottom middle plate with the turntable flange bottom plate in a splicing way, assembling the side assemblies with the turntable flange bottom plate, knocking out a punching hole, and determining a reference center line;
step 2.14, fixing the upper horizontal jig frame firmly, marking a flange hole as a center, knocking out the ocean punch by using the center line, sequentially installing three bending pieces for connecting two side assemblies in place, sequentially hoisting the preceding subgroups manufactured in the step 2.12, and starting the gear by +2mm;
step 2.15, orderly welding the assembled components, confirming the size after welding, sequentially installing the middle hinge point lug plates in place, ensuring +2mm before the top lug plate opening size is welded, and finishing welding the middle flange plate in place according to the size;
step 2.16, welding three front side bending plates on the front side of the turntable flange base plate according to the whole size;
step 2.17, installing a tail end head balancing weight fixing plate, wherein the height is 312+/-0.5, and the whole machine milling surface is reserved;
step 2.18, after the whole assembly welding is finished and the correction is qualified, turning the part into a whole machine for machining;
step 2.2, manufacturing a left auxiliary platform and a right auxiliary platform: the left platform and the right platform are manufactured on the platform directly according to the ground sample detection line during manufacturing, the peripheral dimension is required to have a positive tolerance requirement before welding, all Kong Zanbu on the upper part are perforated, and finally, the whole is perforated by a drilling jig, and the shrinkage is 1 per mill during assembly and manufacturing;
step 2.3, folding;
step 2.31, assembling and welding the left auxiliary platform and the right auxiliary platform according to the main platform as a reference, so as to ensure that the whole size is qualified;
step 2.32, drilling holes of the left auxiliary platform and the right auxiliary platform by using a drilling jig;
and 2.33, after the processing is finished, the rest small parts which are not installed are sequentially installed in the structural workshop.
2. The manufacturing process of the steel structural member of the hydraulic material grabbing machine main body according to claim 1, wherein the manufacturing process is characterized in that:
the accessories installed in the step 1.3 comprise steps and pipeline clamps on the left crawler beam and the right crawler beam, and the steps and the pipeline clamps are welded and fixed.
3. The manufacturing process of the steel structural member of the hydraulic material grabbing machine main body according to claim 1, wherein the manufacturing process is characterized in that: the specific steps of the step 3 are as follows:
step 3.1, manufacturing a movable arm:
step 3.11, reversely working the horizontal upper tire of the movable arm top plate after each machined part is ready, and marking out a structural line according to the drawing requirement by taking the central line of the length direction of the movable arm top plate as a reference;
step 3.12, sequentially installing 5 internal baffles, positioning according to requirements, sequentially hoisting movable arm side plates with processed two sides, fixing two support pipes between the two movable arm side plates in a state of being perpendicular to a central line, simultaneously assembling rib plates around the support pipes, and welding and fixing;
step 3.13, one end of the movable arm is provided with a hole for a shaft to pass through, two movable arm side plates at the other end of the movable arm are provided with arc-shaped openings for fixing end head shaft tubes, the end head shaft tubes are installed by taking the hole at the other end as a reference, the shrinkage is 1 per mill, and the end head shaft tubes are perpendicular to the central line of the structure to form a movable arm with three-face forming;
step 3.14, orderly welding the movable arms formed on three sides according to the welding process requirement, ensuring the firmness of sealing the tire, polishing the inside after welding, and integrally correcting the side plates;
step 3.15, hanging the whole movable arm bottom plate by the detection size, welding according to the requirement after positioning, assembling and welding the support lug plate on the outer side of the support pipe according to the whole section size after correcting and passing the requirement, assembling a heavy plate of the support lug plate, wherein machining allowance of a 5mm milling surface machine is respectively arranged on two sides of the heavy plate, and the opening size is 112+/-1;
step 3.16, welding accessories on the movable arm top plate according to the drawing size, and independently turning the movable arm into a whole for machining after the whole is manufactured;
step 3.2, manufacturing a bucket rod;
step 3.21, cold working the bucket rod top plate and the bucket rod bottom plate with radians according to requirements, and welding the bucket rod side plates in a splicing way;
step 3.22, fixing one side bucket rod side plate by using a horizontal jig frame, scribing, installing a plurality of partition boards and bucket rod bottom boards, hoisting the other side bucket rod side plate in place according to requirements after sequentially positioning, positioning and fixing, and orderly welding according to welding process requirements after three-side forming;
step 3.23, inserting pipe fittings, correcting the overall size after welding, sequentially assembling and welding a head cylinder sleeve and a tail cylinder sleeve, assembling and welding a bucket rod top plate according to drawing requirements, and welding a plug welding hole;
step 3.24, detaching the tire, re-measuring the size, correcting the whole flame in a free state according to the requirement to be qualified, sequentially assembling and welding the support lug plate and the heavy weight plate at two ends of the pipe fitting according to the requirement after detecting the size without errors, and respectively leaving machining milling surface allowance of 5mm at two sides in the heavy weight plate, wherein the assembly starting size is 112+/-1;
and 3.25, installing the accessory according to the size.
4. A process for manufacturing a steel structural member of a hydraulic material grabbing machine body according to claim 3, wherein the process comprises the following steps: in the step 3.11, the length direction is marked according to the welding shrinkage of 1/1000 of the drawing requirement in the marking process.
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