CN116214097A - Frame-shaped part processing method - Google Patents
Frame-shaped part processing method Download PDFInfo
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- CN116214097A CN116214097A CN202310365655.8A CN202310365655A CN116214097A CN 116214097 A CN116214097 A CN 116214097A CN 202310365655 A CN202310365655 A CN 202310365655A CN 116214097 A CN116214097 A CN 116214097A
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- 239000002173 cutting fluid Substances 0.000 claims description 68
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Abstract
The invention relates to the technical field of industrial product preparation processes, in particular to a frame-shaped part processing method, which comprises the following steps of S1: primarily selecting a frame type part positioning reference; s2, starting to determine a positioning reference again; s3, determining the lap joint distance of the boss of the frame-type part; s4, setting a processing process route according to the processing size of the frame-type parts; s5, loosening the tool and disassembling to obtain a part; according to the invention, the positioning standard is selected by a worker, the starting positioning standard is selected, the boss is lapped by the rib lapping method, and the processing process route is set continuously, so that the purposes of refining, flexibly controlling the whole process, enhancing the actual operation performance of the whole process and improving the effect that the processing cost of the existing frame-shaped part cannot be controlled effectively in the processing process are achieved.
Description
Technical Field
The invention relates to the technical field of industrial product preparation processes, in particular to a frame-shaped part processing method.
Background
The parts are basic elements formed by the machine, namely the frame-shaped parts are defined as the names, the machine generally comprises one or more driving parts (such as an electric motor, an internal combustion engine and a steam engine) for receiving external energy, an execution part (such as a cutter in a machine tool) for realizing the production function of the machine, a transmission part (such as a gear and a screw transmission mechanism in the machine tool) for transmitting the motion and the power of the driving machine to the execution part, and a detection and control system (such as a numerical control system in the machine tool) for ensuring the coordinated work of all parts in the machine are formed (namely the machine is formed by the driving part, the transmission part, the execution part and the measurement and control part), and the machine is further decomposed to obtain various parts;
in the process of processing and preparing the existing frame-shaped part, because the processing process of the frame-shaped part in the prior art is high in cost consumption, more electric power is required to be wasted, and the loss of labor hour and consumable materials also causes a large burden to enterprises.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a frame-shaped part processing method which aims to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a frame-shaped part processing method comprises the following steps:
s1: primarily selecting a frame type part positioning reference;
the part has a large smooth surface, the thinner part of the web is only one point with two millimeters, the part is opened in a large area, the rib parts are symmetrical in part, the span is large, and only two ribs are arranged in the Y direction, so that in order to better ensure the processability of the part, the large smooth surface is selected as a Z-direction reference during machining, and classical two-pin positioning is adopted in the X direction and the Y direction;
s2, starting to determine a positioning reference again;
the frame-type part rim strip is provided with holes in a circle, spot facing is needed, in order to meet the position requirement, according to the economy principle, the requirements can be met by adopting a drilling jig for holes, according to the principle of unifying the standards, a large light surface is set as a Z-direction standard, and the holes of 2-12.5 (+ 0.016/+0.033) on the part are used as the standard for X and Y;
s3, determining the lap joint distance of the boss of the frame-type part;
the lap joint distance between the frame-type parts and the boss is 0.2mm; the distance of 0.2mm is determined, so that the situation that the boss is only connected with a part by two millimeters after finish machining is finished under the condition that the machining compaction is met by a rib splicing method is realized, the workload of a fitter for removing the boss is reduced, and the risk of the fitter is reduced, namely, the chamfering of the edge remover is realized;
s4, setting a process route according to the processing size of the frame-type parts;
s41, performing bench work operation;
scribing the side of the material according to the drawing requirement, drilling a center hole at the scribing intersection point by using an electric gun drill, and drilling by using the electric gun drill
10.3 bottom holes with the depth not exceeding thirty millimeters, preferably M12 threading dies, are used for tapping 4-M12 hoisting holes, and the effective thread depth is more than 20 millimeters; />
S42, a milling procedure;
clamping and compacting according to the process sketch, checking that the clearance of the bottom surface of the part does not exceed five millimeters of zero, then installing a cutter according to the process requirement, aligning the part, determining an origin, processing a product according to the process requirement program, and checking the part according to the process sketch requirement.
S43, bench work shape correction;
according to the process sketch requirement, verifying that the deformation of the part is not more than 7mm, confirming a deformation correction point according to a rolling correction principle, correcting the deformation by using special rolling correction equipment and tools after confirming the correction point, and checking the deformation by using a feeler gauge.
S44, burring by a fitter;
and (3) clamping the part according to a working procedure sketch, checking a clearance not exceeding 0.3mm by using a feeler gauge, installing a reversing device on the electric drill gun, machining a bottom hole of the part according to a drill jig, using a limiting countersink bit according to the drill jig, countersink the part, removing local sharp edge burrs, and polishing the local uneven cutter by using fine sand paper.
S5, loosening the tool and disassembling to obtain a part; and comparing by adopting the appearance detection sample.
Further, in the step S42, a step 1 is included of performing a number of milling area division according to the part structure; step 2, setting cutters with different specifications and cutter sequences according to the divided milling areas, setting the flow rate of cutting fluid, and recording the service time of working procedures; step 3, verifying the step 2 during the opening, and executing the step 2 according to the verification result to meet the requirements of the parts; and if the machining requirement is not met, changing the cutter used in the step 2 and the cutter sequence, and executing the step 2 again after the verification result meets the machining requirement until the step verification result meets the machining dimension requirement.
Further, the step 1 is divided into three milling areas according to the frame-shaped parts: machining a positioning hole and pin hole milling area; rough and finish milling a large smooth area; rough and finish milling a frame surface area;
different parts are divided into different number milling areas, so that the method is a refined technical scheme, the machining precision and efficiency are more outstanding, meanwhile, the cutter abrasion is reduced, the machining cost is saved, and one frame-type part can be 3 number milling areas, 4 number milling areas, 5 number milling areas, 6 number milling areas and the like. The more areas selected, the more complex the tool is used.
Further, in the step 2, cutters with different specifications and cutter sequences are set in the milling areas of the machining positioning holes and the pin holes, the flow velocity of cutting fluid is set, and the service time of working procedures is recorded;
firstly, adopting a milling cutter with the diameter of 20mm and the bottom tooth R of 0mm, wherein the axial ruler cutter amount of AP is 4mm, the radial ruler cutter amount of AE is 20mm, the main shaft rotating speed S is 5500R/min, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t1 hours;
adopting a milling cutter with the diameter of 120mm and the bottom tooth R of 0mm, wherein the axial ruler cutter quantity of AP is 80mm, the radial ruler cutter quantity of AE is 1mm, the rotating speed of a main shaft S is 3000R/min, the feeding F is 1500mm/min, and the flow rate of cutting fluid is 10L/min; the working time is t2 hours;
the third time adopts a center drill, the AE radial ruler cutter amount is 0.5mm, the main shaft rotating speed S is 2000 revolutions per minute, the feeding F is 100mm/min, and the flow rate of cutting fluid is 10L/min; the working time is t3 hours;
the fourth time adopts a drill bit with the diameter of 13mmz, the spindle rotating speed S is 1000 revolutions per minute, the feeding F is 100mm/min, and the flow rate of cutting fluid is 10L/min; the working time is t4 hours;
a milling cutter with a diameter of 12mm and bottom teeth R of 0 is adopted for the fifth time, the main shaft rotating speed S is 2000 revolutions per minute, the feeding F is 200mm/min, and the flow rate of cutting fluid is 10L/min; the working time is t5 hours;
step 1 is performed for a total milling time of 11 hours, namely t1+t2+t3+t4+t5=11 hours.
Step 1 total consumption of cutting fluid L is equal to
t1×30L/min+t2×60 min×10L/min+t3×60 min×10L/min+t4×60 min×10L/min+t5×60 min×10L/min
Further, setting tools with different specifications and sequences of the tools in the rough and finish milling large-smooth surface area in the step 2, setting the flow rate of cutting fluid, and recording the service time of the working procedure;
further, step 2, rough finish milling of a large smooth surface; and a special vacuum suction clamp is adopted for fixing to ensure that the thin wall is qualified.
Firstly, adopting a milling cutter with the diameter of 20mm and the bottom tooth R of 0mm, wherein the axial ruler cutter amount of AP is 4mm, the radial ruler cutter amount of AE is 20mm, the main shaft rotating speed S is 5500R/min, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t6 hours;
adopting a milling cutter with the diameter of 20mm and the bottom tooth R of 1mm, wherein the axial ruler amount of AP is 0.15mm, the radial ruler amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t7 hours;
adopting a milling cutter with the diameter of 8mm and the bottom tooth R of 1mm, wherein the axial ruler cutter amount of AP is 0.15mm, the radial ruler cutter amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 3000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t8 hours;
step 2 counts the total amount of milling time for 22 hours, i.e. t6+t7+t8=22 hours.
Step 2 total consumption of cutting fluid L is equal to
t6×60 min×30L/min+t7×60 min×30L/min+t8×60 min×30L/min
Further, setting tools with different specifications and sequences of the tools in the rough and finish milling frame surface area in the step 2, setting the flow rate of cutting fluid, and recording the service time of the working procedure;
adopting a milling cutter with the diameter of 40mm and the bottom tooth R of 0.8mm for the first time, wherein the axial ruler amount of AP is 4mm, the radial ruler amount of AE is 32mm, the main shaft rotating speed S is 6000 revolutions per minute, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t9 hours;
adopting a milling cutter with the diameter of 20mm and the bottom tooth R of 3mm, wherein the axial ruler cutter amount of AP is 0.15mm, the radial ruler cutter amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t10 hours;
adopting a milling cutter with the diameter of 16mm and the bottom tooth R of 4mm for the third time, wherein the axial ruler amount of AP is 0.5mm, the radial ruler amount of AE is 10mm, the spindle rotating speed S is 3500 revolutions per minute, the feeding F is 1500mm/min, and the flow rate of cutting fluid is 20L/min; the working time is t11 hours;
adopting a milling cutter with the diameter of 20mm and the bottom tooth R of 3mm, wherein the axial ruler amount of AP is 0.15mm, the radial ruler amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 20L/min; the working time is t12 hours;
adopting a milling cutter with the diameter of 6mm and the bottom tooth R of 3, wherein the axial ruler cutter amount of AP is 0.15mm, the radial ruler cutter amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 3000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t13 hours;
adopting a milling cutter with the diameter of 12mm and the bottom tooth R of 4, wherein the axial ruler cutter amount of AP is 0.15mm, the radial ruler cutter amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 3000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t14 hours;
a milling cutter with the diameter of 16mm and the bottom tooth R of 0mm, the axial ruler cutter amount of AP of 20mm, the radial ruler cutter amount of AE of 0.5mm, the spindle rotating speed S of 3500 revolutions per minute, the feeding F of 1200mm/min and the flow rate of cutting fluid of 10L/min are adopted for the seventh time; the working time is t15 hours;
the eighth time adopts a boring cutter, the AP axial ruler cutter amount is 0.5mm, the AE radial ruler cutter amount is 0.5mm, the main shaft rotating speed S is 200 revolutions per minute, the feeding F is 20mm/min, and the cutting fluid flow rate is 10L/min; the working time is t16 hours;
step 3 number milling duration total 110 hours, i.e. t9+t10+t11+t12+t13+t14+t15+t16=110 hours.
Step 3 total consumption of cutting fluid L is equal to
t9*60mi n*30L/mi n+t10*60mi n*30L/mi n+t11*60mi n*20L/mi n+t12*60mi n*20L/mi n+t13*60mi n*30L/mi n+t14*60mi n*30L/mi n+t15*60mi n*10L/mi n+t16*60mi n*10L/mi n
Further, in the step S42, the step S2 is verified during the step S3, and the step S2 is executed according to the verification of the size of the machined part, and the verification result meets the requirement of the part; and if the machining requirement is not met, changing the cutter used in the step 2 and the cutter sequence, and executing the step 2 again after the verification result meets the machining requirement until the step verification result meets the machining dimension requirement.
The invention has the following beneficial effects:
1) According to the frame-shaped part processing method, the positioning reference is selected by a worker, so that the accuracy of the positioning reference is achieved;
2) The lug boss is overlapped by the rib overlapping method according to the requirements of parts, so that the man-hour reducing effect is achieved, and the risk of injury of personnel is reduced;
3) Setting a number milling area dividing process route, realizing the use of cutters with different specifications in different areas, and making different use sequences, so as to realize fine machining, minimize the damage of the cutters, and control the use amount of cutting fluid according to the progress of various number milling procedures;
4) The part processing method strengthens the actual operation performance of the whole process and improves the effect that the processing cost of the existing frame-shaped part cannot be effectively controlled in the processing process.
Drawings
FIG. 1 is a block diagram of the components of the present invention;
FIG. 2 is a schematic diagram of a boss overlap joint mode according to the present invention;
FIG. 3 is a schematic view of a vacuum chuck for exclusive use in the present invention;
FIG. 4 is a schematic diagram of a profile test sample according to the present invention;
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. 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.
Referring to fig. 1 to 4, in the present embodiment: a frame-shaped part processing method comprises the following steps:
s1: primarily selecting a frame type part positioning reference;
the part has a large smooth surface, the thinner part of the web is only one point with two millimeters, the part is opened in a large area, the rib parts are symmetrical in part, the span is large, and only two ribs are arranged in the Y direction, so that in order to better ensure the processability of the part, the large smooth surface is selected as a Z-direction reference during machining, and classical two-pin positioning is adopted in the X direction and the Y direction;
s2, starting to determine a positioning reference again;
the frame-type part rim strip is provided with holes in a circle, spot facing is needed, in order to meet the position requirement, according to the economy principle, the requirements can be met by adopting a drilling jig for holes, according to the principle of unifying the standards, a large light surface is set as a Z-direction standard, and the holes of 2-12.5 (+ 0.016/+0.033) on the part are used as the standard for X and Y;
s3, determining the lap joint distance of the boss of the frame-type part;
the lap joint distance between the frame-type parts and the boss is 0.2mm; the distance of 0.2mm is determined, so that the situation that the boss is only connected with a part by two millimeters after finish machining is finished under the condition that the machining compaction is met by a rib splicing method is realized, the workload of a fitter for removing the boss is reduced, and the risk of the fitter is reduced, namely, the chamfering of the edge remover is realized;
s4, setting a process route according to the processing size of the frame-type parts;
s41, performing bench work operation;
scribing the side of the material according to the drawing requirement, drilling a center hole at the scribing intersection point by using an electric gun drill, and drilling by using the electric gun drill
10.3 bottom holes with the depth not exceeding thirty millimeters, preferably M12 threading dies, are used for tapping 4-M12 hoisting holes, and the effective thread depth is more than 20 millimeters;
s42, a milling procedure;
clamping and compacting according to the process sketch, checking that the clearance of the bottom surface of the part does not exceed five millimeters of zero, then installing a cutter according to the process requirement, aligning the part, determining an origin, processing a product according to the process requirement program, and checking the part according to the process sketch requirement.
S43, bench work shape correction;
according to the process sketch requirement, verifying that the deformation of the part is not more than 7mm, confirming a deformation correction point according to a rolling correction principle, correcting the deformation by using special rolling correction equipment and tools after confirming the correction point, and checking the deformation by using a feeler gauge.
S44, burring by a fitter;
and (3) clamping the part according to a working procedure sketch, checking a clearance not exceeding 0.3mm by using a feeler gauge, installing a reversing device on the electric drill gun, machining a bottom hole of the part according to a drill jig, using a limiting countersink bit according to the drill jig, countersink the part, removing local sharp edge burrs, and polishing the local uneven cutter by using fine sand paper.
S5, loosening the tool and disassembling to obtain a part; and comparing by adopting the appearance detection sample.
Further, in the step S42, a step 1 is included of performing a number of milling area division according to the part structure; step 2, setting cutters with different specifications and cutter sequences according to the divided milling areas, setting the flow rate of cutting fluid, and recording the service time of working procedures; step 3, verifying the step 2 during the opening, and executing the step 2 according to the verification result to meet the requirements of the parts; and if the machining requirement is not met, changing the cutter used in the step 2 and the cutter sequence, and executing the step 2 again after the verification result meets the machining requirement until the step verification result meets the machining dimension requirement.
Further, the step 1 is divided into three milling areas according to the frame-shaped parts: machining a positioning hole and pin hole milling area; rough and finish milling a large smooth area; rough and finish milling a frame surface area;
further, in the step 2, cutters with different specifications and cutter sequences are set in the milling areas of the machining positioning holes and the pin holes, the flow velocity of cutting fluid is set, and the service time of working procedures is recorded;
firstly, adopting a milling cutter with the diameter of 20mm and the bottom tooth R of 0mm, wherein the axial ruler cutter amount of AP is 4mm, the radial ruler cutter amount of AE is 20mm, the main shaft rotating speed S is 5500R/min, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t1 hours;
adopting a milling cutter with the diameter of 120mm and the bottom tooth R of 0mm, wherein the axial ruler cutter quantity of AP is 80mm, the radial ruler cutter quantity of AE is 1mm, the rotating speed of a main shaft S is 3000R/min, the feeding F is 1500mm/min, and the flow rate of cutting fluid is 10L/min; the working time is t2 hours;
the third time adopts a center drill, the AE radial ruler cutter amount is 0.5mm, the main shaft rotating speed S is 2000 revolutions per minute, the feeding F is 100mm/min, and the flow rate of cutting fluid is 10L/min; the working time is t3 hours;
the fourth time adopts a drill bit with the diameter of 13mmz, the spindle rotating speed S is 1000 revolutions per minute, the feeding F is 100mm/min, and the flow rate of cutting fluid is 10L/min; the working time is t4 hours;
a milling cutter with a diameter of 12mm and bottom teeth R of 0 is adopted for the fifth time, the main shaft rotating speed S is 2000 revolutions per minute, the feeding F is 200mm/min, and the flow rate of cutting fluid is 10L/min; the working time is t5 hours;
step 1 is performed for a total milling time of 11 hours, namely t1+t2+t3+t4+t5=11 hours.
Step 1 total consumption of cutting fluid L is equal to
t1×30L/min+t2×60 min×10L/min+t3×60 min×10L/min+t4×60 min×10L/min+t5×60 min×10L/min
Further, setting tools with different specifications and sequences of the tools in the rough and finish milling large-smooth surface area in the step 2, setting the flow rate of cutting fluid, and recording the service time of the working procedure;
further, step 2, rough finish milling of a large smooth surface; and a special vacuum suction clamp is adopted for fixing to ensure that the thin wall is qualified.
Firstly, adopting a milling cutter with the diameter of 20mm and the bottom tooth R of 0mm, wherein the axial ruler cutter amount of AP is 4mm, the radial ruler cutter amount of AE is 20mm, the main shaft rotating speed S is 5500R/min, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t6 hours;
adopting a milling cutter with the diameter of 20mm and the bottom tooth R of 1mm, wherein the axial ruler amount of AP is 0.15mm, the radial ruler amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t7 hours;
adopting a milling cutter with the diameter of 8mm and the bottom tooth R of 1mm, wherein the axial ruler cutter amount of AP is 0.15mm, the radial ruler cutter amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 3000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t8 hours;
step 2 counts the total amount of milling time for 22 hours, i.e. t6+t7+t8=22 hours.
Step 2 total consumption of cutting fluid L is equal to
t6×60 min×30L/min+t7×60 min×30L/min+t8×60 min×30L/min
Further, setting tools with different specifications and sequences of the tools in the rough and finish milling frame surface area in the step 2, setting the flow rate of cutting fluid, and recording the service time of the working procedure;
adopting a milling cutter with the diameter of 40mm and the bottom tooth R of 0.8mm for the first time, wherein the axial ruler amount of AP is 4mm, the radial ruler amount of AE is 32mm, the main shaft rotating speed S is 6000 revolutions per minute, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t9 hours;
adopting a milling cutter with the diameter of 20mm and the bottom tooth R of 3mm, wherein the axial ruler cutter amount of AP is 0.15mm, the radial ruler cutter amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t10 hours;
adopting a milling cutter with the diameter of 16mm and the bottom tooth R of 4mm for the third time, wherein the axial ruler amount of AP is 0.5mm, the radial ruler amount of AE is 10mm, the spindle rotating speed S is 3500 revolutions per minute, the feeding F is 1500mm/min, and the flow rate of cutting fluid is 20L/min; the working time is t11 hours;
adopting a milling cutter with the diameter of 20mm and the bottom tooth R of 3mm, wherein the axial ruler amount of AP is 0.15mm, the radial ruler amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 20L/min; the working time is t12 hours;
adopting a milling cutter with the diameter of 6mm and the bottom tooth R of 3, wherein the axial ruler cutter amount of AP is 0.15mm, the radial ruler cutter amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 3000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t13 hours;
adopting a milling cutter with the diameter of 12mm and the bottom tooth R of 4, wherein the axial ruler cutter amount of AP is 0.15mm, the radial ruler cutter amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 3000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t14 hours;
a milling cutter with the diameter of 16mm and the bottom tooth R of 0mm, the axial ruler cutter amount of AP of 20mm, the radial ruler cutter amount of AE of 0.5mm, the spindle rotating speed S of 3500 revolutions per minute, the feeding F of 1200mm/min and the flow rate of cutting fluid of 10L/min are adopted for the seventh time; the working time is t15 hours;
the eighth time adopts a boring cutter, the AP axial ruler cutter amount is 0.5mm, the AE radial ruler cutter amount is 0.5mm, the main shaft rotating speed S is 200 revolutions per minute, the feeding F is 20mm/min, and the cutting fluid flow rate is 10L/min; the working time is t16 hours;
step 3 number milling duration total 110 hours, i.e. t9+t10+t11+t12+t13+t14+t15+t16=110 hours.
Step 3 total consumption of cutting fluid L is equal to
t9*60mi n*30L/mi n+t10*60mi n*30L/mi n+t11*60mi n*20L/mi n+t12*60mi n*20L/mi n+t13*60mi n*30L/mi n+t14*60mi n*30L/mi n+t15*60mi n*10L/mi n+t16*60mi n*10L/mi n
Further, in the step S42, the step S2 is verified during the step S3, and the step S2 is executed according to the verification of the size of the machined part, and the verification result meets the requirement of the part; and if the machining requirement is not met, changing the cutter used in the step 2 and the cutter sequence, and executing the step 2 again after the verification result meets the machining requirement until the step verification result meets the machining dimension requirement.
The invention has the following beneficial effects:
1) According to the frame-shaped part processing method, the positioning reference is selected by a worker, so that the accuracy of the positioning reference is achieved;
2) The lug boss is overlapped by the rib overlapping method according to the requirements of parts, so that the man-hour reducing effect is achieved, and the risk of injury of personnel is reduced;
3) Setting a number milling area dividing process route, realizing the use of cutters with different specifications in different areas, and making different use sequences, so as to realize fine machining, minimize the damage of the cutters, and control the use amount of cutting fluid according to the progress of various number milling procedures;
4) The part processing method strengthens the actual operation performance of the whole process and improves the effect that the processing cost of the existing frame-shaped part cannot be effectively controlled in the processing process.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A frame-shaped part processing method is characterized in that: the method comprises the following steps:
s1, initially selecting a frame type part positioning reference;
s2, starting to determine a positioning reference again;
s3, determining the lap joint distance of the boss of the frame-type part;
s4, setting a process route according to the processing size of the frame-type parts;
s5, loosening the tool and disassembling to obtain the part.
2. A method of machining a frame-shaped part according to claim 1, wherein: the part in S1 has a big plain noodles, and the web thinner department is only a little two millimeters, and the part is opened in a large scale, and the muscle position subsection is symmetrical, and the span is great, and has two muscle only in Y orientation, so in order to better guarantee its machinability, select big plain noodles to be Z to the benchmark during machining, X orientation and Y orientation adopt classical two cotter positioning.
3. A method of machining a frame-shaped part according to claim 1, wherein: and the rim of the part in the step S2 is perforated, spot facing is needed, a large light surface is set as a Z-direction reference, and the X-direction and the Y-direction adopt holes of 2-12.5 (+ 0.016/+0.033) on the part as references.
4. A method of machining a frame-shaped part according to claim 1, wherein: and the overlapping distance between the S3 middle frame type part and the boss is 0.2mm.
5. A method of machining a frame-shaped part according to claim 1, wherein: the step S4 further comprises the following steps:
s41, performing bench work operation;
s42, a milling procedure;
s43, bench work shape correction;
s44, burring by a fitter.
6. A method of machining a frame-shaped part according to claim 5, wherein: the step S42 further includes the steps of:
step 1, carrying out a number of milling area division according to a part structure;
step 2, setting cutters with different specifications and cutter sequences according to the divided milling areas, setting the flow rate of cutting fluid, and recording the service time of working procedures;
step 3, verifying the step 2 during the opening, and executing the step 2 according to the verification result to meet the requirements of the parts; and if the machining requirement is not met, changing the cutter used in the step 2 and the cutter sequence, and executing the step 2 again after the verification result meets the machining requirement until the step verification result meets the machining dimension requirement.
7. A method of machining a frame-shaped part according to claim 6, wherein:
the step 1 is divided into three milling areas according to the frame-shaped parts: machining a positioning hole and pin hole milling area; rough and finish milling a large smooth area; rough and finish milling the frame surface area.
8. A method of machining a frame-shaped part according to claim 7, wherein: setting cutters with different specifications and sequences of the cutters in the numerical milling areas of the machining positioning holes and the pin holes, setting the flow velocity of cutting fluid, and recording the service time of working procedures;
firstly, adopting a milling cutter with the diameter of 20mm and the bottom tooth R of 0mm, wherein the axial ruler cutter amount of AP is 4mm, the radial ruler cutter amount of AE is 20mm, the rotating speed of a main shaft S is 5500R/min, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t1 hours;
adopting a milling cutter with the diameter of 120mm and the bottom tooth R of 0mm, wherein the axial ruler cutter quantity of AP is 80mm, the radial ruler cutter quantity of AE is 1mm, the rotating speed of a main shaft S is 3000R/min, the feeding F is 1500mm/min, and the flow rate of cutting fluid is 10L/min; the working time is t2 hours;
adopting a center drill for the third time, wherein the AE radial ruler cutter amount is 0.5mm, the main shaft rotating speed S is 2000 revolutions per minute, the feeding F is 100mm/min, and the flow rate of cutting fluid is 10L/min; the working time is t3 hours;
the drill bit with the diameter of 13mmz is adopted for the fourth time, the spindle rotating speed S is 1000 revolutions per minute, the feeding F is 100mm/min, and the flow rate of cutting fluid is 10L/min; the working time is t4 hours;
adopting a milling cutter with the diameter of 12mm and the bottom tooth R of 0 for the fifth time, wherein the spindle rotating speed S is 2000 rpm, the feeding F is 200mm/min, and the flow rate of cutting fluid is 10L/min; the working time is t5 hours.
9. A method of machining a frame-shaped part according to claim 7, wherein: setting tools with different specifications and sequences of the tools in the rough and finish milling large-smooth surface area, setting the flow rate of cutting fluid, and recording the service time of working procedures; adopting a special vacuum suction clamp to fix and ensure that the thin wall is qualified;
firstly, adopting a milling cutter with the diameter of 20mm and the bottom tooth R of 0mm, wherein the axial ruler cutter amount of AP is 4mm, the radial ruler cutter amount of AE is 20mm, the rotating speed of a main shaft S is 5500R/min, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t6 hours;
adopting a milling cutter with the diameter of 20mm and the bottom tooth R of 1mm, wherein the axial ruler cutter amount of AP is 0.15mm, the radial ruler cutter amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t7 hours;
adopting a milling cutter with the diameter of 8mm and the bottom tooth R of 1mm, wherein the axial ruler cutter amount of AP is 0.15mm, the radial ruler cutter amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 3000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t8 hours.
10. A method of machining a frame-shaped part according to claim 7, wherein: setting tools with different specifications and sequences of the tools in the rough and finish milling frame surface area, setting the flow rate of cutting fluid, and recording the service time of working procedures;
adopting a milling cutter with the diameter of 40mm and the bottom tooth R of 0.8mm for the first time, wherein the axial ruler cutter amount of AP is 4mm, the radial ruler cutter amount of AE is 32mm, the main shaft rotating speed S is 6000 revolutions per minute, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t9 hours;
adopting a milling cutter with the diameter of 20mm and the bottom tooth R of 3mm, wherein the axial ruler cutter amount of AP is 0.15mm, the radial ruler cutter amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t10 hours;
adopting a milling cutter with the diameter of 16mm and the bottom tooth R of 4mm for the third time, wherein the axial ruler cutter amount of AP is 0.5mm, the radial ruler cutter amount of AE is 10mm, the spindle rotating speed S is 3500 revolutions per minute, the feeding F is 1500mm/min, and the flow rate of cutting fluid is 20L/min; the working time is t11 hours;
adopting a milling cutter with the diameter of 20mm and the bottom tooth R of 3mm, wherein the axial ruler amount of AP is 0.15mm, the radial ruler amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 4000mm/min, and the flow rate of cutting fluid is 20L/min; the working time is t12 hours;
adopting a milling cutter with the diameter of 6mm and the bottom tooth R of 3, wherein the axial ruler cutter amount of AP is 0.15mm, the radial ruler cutter amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 3000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t13 hours;
adopting a milling cutter with the diameter of 12mm and the bottom tooth R of 4, wherein the axial ruler cutter amount of AP is 0.15mm, the radial ruler cutter amount of AE is 0.5mm, the spindle rotating speed S is 5500R/min, the feeding F is 3000mm/min, and the flow rate of cutting fluid is 30L/min; the working time is t14 hours;
a milling cutter with the diameter of 16mm and the bottom tooth R of 0mm, the axial ruler cutter amount of AP of 20mm, the radial ruler cutter amount of AE of 0.5mm, the spindle rotating speed S of 3500 revolutions per minute, the feeding F of 1200mm/min and the flow rate of cutting fluid of 10L/min are adopted for the seventh time; the working time is t15 hours;
the eighth time adopts a boring cutter, the AP axial ruler cutter amount is 0.5mm, the AE radial ruler cutter amount is 0.5mm, the main shaft rotating speed S is 200 revolutions per minute, the feeding F is 20mm/min, and the flow rate of cutting fluid is 10L/min; the working time is t16 hours.
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| CN202410216790.0A CN118081298A (en) | 2023-04-07 | 2023-04-07 | Machining method for rough and finish milling frame surface part |
| CN202310365655.8A CN116214097B (en) | 2023-04-07 | 2023-04-07 | Frame-shaped part processing method |
| CN202410179191.6A CN117943798A (en) | 2023-04-07 | 2023-04-07 | Machining method for rough and finish milling large-smooth-surface part |
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| CN202410179191.6A Division CN117943798A (en) | 2023-04-07 | 2023-04-07 | Machining method for rough and finish milling large-smooth-surface part |
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