CN111590122B - Processing method of screen display diffraction supporting component - Google Patents
Processing method of screen display diffraction supporting component Download PDFInfo
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- CN111590122B CN111590122B CN202010437806.2A CN202010437806A CN111590122B CN 111590122 B CN111590122 B CN 111590122B CN 202010437806 A CN202010437806 A CN 202010437806A CN 111590122 B CN111590122 B CN 111590122B
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- 238000003672 processing method Methods 0.000 title claims abstract description 7
- 238000003801 milling Methods 0.000 claims abstract description 36
- 238000003825 pressing Methods 0.000 claims abstract description 36
- 238000003754 machining Methods 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 230000032683 aging Effects 0.000 claims abstract description 20
- 230000035882 stress Effects 0.000 claims abstract description 13
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 15
- 238000004026 adhesive bonding Methods 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000005266 casting Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/084—Work-clamping means other than mechanically-actuated using adhesive means
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/78—Combined heat-treatments not provided for above
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0068—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below
Abstract
A processing method of a screen display diffraction supporting component comprises the steps of arranging a clamping base on a workbench, arranging a heightening block on the clamping base, and arranging a component blank on the heightening block; before the processing of the part blank, carrying out two-wheel high-low temperature aging heat treatment on the part blank, and then sequentially carrying out milling and rough machining through large allowance; semi-finishing and finish milling the part blank, removing the pressing plate after finish milling, taking down the finished part blank to be a finished product of the screen display diffraction supporting part for packaging, and finishing the processing of the screen display diffraction supporting part; the screen display diffraction supporting component can avoid internal stress to a great extent by carrying out preliminary heat treatment on the blank state, reduce part deformation, ensure the mutual matching and relative positions of parts, ensure the precision after long-term use, improve the processing quality stability of modified parts and ensure that pilots can accurately observe, identify and control.
Description
Technical Field
The invention relates to the use of a clamping device for processing a screen display diffraction component, in particular to a processing method of a screen display diffraction supporting component.
Background
At present, a screen is placed in front of an aircraft cabin by a modern head-up display, important information is displayed to a pilot in visual forms such as images, characters and the like, the pilot controls flight information and equipment thereof through positioning data, and the pilot can grasp relevant important information to observe and identify the relevant important information while looking ahead. In the processing of the screen diffraction supporting component through a machine tool, due to the fact that the structure is complex, the material has the telescopic characteristic after being subjected to temperature change, during processing, the stress release inside the screen diffraction supporting component is incomplete, deformation is generated during processing, and the problems of accuracy, position dimension out-of-tolerance and the like of the mutual matching of the screen diffraction supporting component and the connecting component are solved.
Disclosure of Invention
The invention aims to solve the problems that the existing screen diffraction supporting component has expansion and contraction characteristics after the materials are subjected to temperature change in the machining process of a machine tool, the stress release inside the screen diffraction supporting component is incomplete in the machining process, deformation is generated in the machining process, the accuracy of mutual matching of the screen diffraction supporting component and the connecting component, the position size is out of tolerance and the like, the accuracy of positioning of the connecting component of screen diffraction is affected when the screen diffraction supporting component is deformed, the problems are difficult and difficult to solve all the time in the same industry, and the deformation of the screen diffraction supporting component affects the information received and transmitted by the connecting component and directly affects the observation, identification and control of pilots; by reasonable design, the processing method of the screen display diffraction supporting component is provided; the screen display diffraction supporting component can avoid the internal stress generated during blank casting to a great extent by carrying out the preliminary heat treatment on the blank state, and avoids the processing of the subsequent working procedure with the internal stress; the blank is released from the processing stress, and the consistency of the sizes of the parts is ensured. Semi-finishing reserves a margin of 0.3mm minus 0.5mm on one side of the surface and the hole. The blank is subjected to secondary semi-finishing, and the smaller the allowance is during finishing, the better the stability of the whole processing of the part is; the finish machining is a key procedure, firstly, the machine tool needs to be preheated for more than 2 hours, the whole machine tool is guaranteed to be in a stable state, the structure is simple, the manufacturing is easy, the machining cost is low, and the installation on the airplane is convenient. The screen display diffraction support component reduces part deformation through hundreds of processing experiences, can ensure the mutual matching and the relative position of parts, can ensure the precision after long-term use, improves the processing quality stability of modified parts, and ensures that pilots can accurately observe, identify and control.
In order to achieve the above purpose, the invention adopts the following technical scheme that the processing method of the screen display diffraction support component comprises the steps of carrying out high-low temperature aging heat treatment on a component blank for the first time before the component blank is processed; the first round starts the vacuum high-low temperature furnace through the first high-low temperature aging heat treatment, when the temperature rises to 150 ℃, the part blank is put into the vacuum high-temperature furnace with 150 ℃ to keep warm for one hour, the part blank is taken out to be transferred into a low-temperature box with 55 ℃ below zero to keep warm for 1 hour after being uniformly heated, and the part blank is respectively put into the vacuum high-temperature furnace with 150 ℃ below zero and the low-temperature box with 55 ℃ below zero to be treated as high-low temperature treatment; the part blank is circularly subjected to two times of high-low temperature treatment according to the high-low temperature treatment method, and the internal stress of the part blank after the two times of high-low temperature treatment is released or eliminated;
after the component blank is processed at high and low temperatures twice, a pair of bottom hinge lug seats of the component blank are formed, the bottom surface of the blank of the component blank is placed on a lifting block in the center of a working table to be positioned, after the component blank is positioned, nuts on bolts at two sides are respectively rotated to downwards compress a pressing plate to compress and fix the component blank, and after the component blank is clamped and fixed, a blank base surface of the component blank is reserved for large allowance for milling by a machine tool;
after milling of the blank base surface is completed, the blank base surface of the component blank is turned downwards, the two ends of the component blank downwards are respectively clamped and fixed with the component side hinge lug seat through standard heightening blocks by rotating nuts on bolts, and the bottom surface, the front inclined surface, the rear inclined surface and the side surface of the component blank are respectively milled for the first time through a machine tool; the first milling process is as follows: rough machining;
after the stabilization treatment of the component blank is finished, the component blank is repeatedly placed on the heightening block to be positioned, clamped and fixed again, the outer surface of the component blank is machined through a machine tool to be semi-finished, and the outer surface after the semi-finishing of the component blank and the single side of the hole are respectively reserved with allowance of 0.3mm to 0.5 mm;
after the semi-finishing of the component blank is finished, carrying out the finish machining of the screen display diffraction supporting component product on the component blank by a machine tool, preheating the machine tool before the finish machining of the product, positioning the bottom surface of the blank of the semi-finished component blank downwards, positioning and clamping and fixing the two downward ends of the blank by a pressing plate through the rotation of nuts on bolts and the bottom of the component blank respectively through standard heightening blocks, and carrying out finish milling on the base surface of the blank by the machine tool; the flatness of the blank base surface after finish milling is less than 0.01mm;
the milling of the blank base surface is completed, the pressing plate is removed, the blank base surface of the turning part blank is downwards placed on the heightening block to be positioned again, and the two downward ends of the turning part blank are respectively subjected to finish milling through the standard heightening block and the part side hinge lug seat by rotating nuts on bolts; during finish milling, positioning the part blank, wherein the flatness of the part blank is smaller than 0.01mm, the front plane is smaller than 0.01mm, positioning is performed, four corners of the part blank are pressed with a dial indicator, nuts on bolts slowly rotate, a pressing plate gradually presses the part blank downwards, and stopping when the jump of the dial indicator is not larger than 0.01mm through observation; after the part blank is observed, positioned and clamped and fixed, a machine tool respectively carries out finish milling on the bottom surface, the front inclined surface, the rear inclined surface and the side surface of the part blank by small cutting tool amount, the pressing plate is removed after finish milling is finished, and the finished part blank is taken down to be a finished product of the screen display diffraction supporting part for packaging, so that the processing of the screen display diffraction supporting part is completed;
the processing clamping device for the screen display diffraction supporting component is composed of a clamping base, a heightening block, a base T-shaped lug, a component blank, a component side hinge lug seat, a workbench, a pressing plate, a bolt, a standard heightening block, an adhesive bonding point, a blank bottom surface, a front inclined surface, a rear inclined surface, a side surface, a blank base surface and a bottom hinge lug seat; the method is characterized in that: a clamping base is arranged on the workbench, a heightening block is arranged on the clamping base, and a part blank is arranged on the heightening block; the lower part of the component blank is set as a blank base surface, the upper part of the component blank is set as a blank bottom surface, the right end of the component blank is set as a front inclined surface, the left end of the component blank is set as a rear inclined surface, and two sides of the component blank are set as a pair of side surfaces; a pair of base T-shaped lugs are symmetrically arranged on two sides of the rear part of the clamping base, a pair of component side hinge lug seats are symmetrically arranged on two sides of the rear part below the side surfaces, and the component side hinge lug seats and the base T-shaped lugs are correspondingly arranged up and down; a pair of bottom hinge lug seats are symmetrically arranged on the two sides of the upper surface of the right end of the bottom surface of the blank;
the middle part of the upper surface of the T-shaped lug of the base is symmetrically reserved with a position space for installing the pressing plate, the middle part of the position space is reserved with a screw hole, a bolt is arranged in the screw hole, the upper part of the bolt is provided with the pressing plate, the upper end of the bolt is provided with a nut, one end of the outer side of the pressing plate is provided with a standard heightening block, and the other end of the outer side of the pressing plate is provided with a part side hinge lug seat of a part blank; at least two pairs of adhesive bonding points are arranged between the two symmetrical sides of the front part of the blank base and the joint between the heightening blocks.
Before the processing of the part blank, carrying out high-low temperature ageing heat treatment on the part blank in a first round, wherein the high-low temperature ageing heat treatment is divided into two rounds, and each round is two times of high-low temperature ageing heat treatment; the first round is through the first high-low temperature ageing heat treatment, turn on the vacuum high-low temperature furnace, when the temperature rises to 150 ℃, put the part blank into the vacuum high-temperature furnace of 150 ℃ to keep warm for one hour, take out and transfer to the low temperature in the minus 55 ℃ low temperature box to keep warm for 1 hour after the part blank is heated uniformly, put the part blank into the vacuum high-temperature furnace of 150 ℃ and the minus 55 ℃ low temperature box respectively to be treated as high-low temperature treatment; the part blank is circularly subjected to two times of high-low temperature treatment according to the high-low temperature treatment method, and the internal stress of the part blank after the two times of high-low temperature treatment is released or eliminated;
after finishing the rough machining through the large allowance machining outside the machine tool machining part blank, removing pressing plates on two sides of the part blank, performing second-wheel high-low temperature aging heat treatment on the part blank according to a first-wheel high-low temperature aging heat treatment method, wherein the second-wheel high-low temperature aging heat treatment of the part blank is as follows: and (5) stabilizing the part blank.
The beneficial effects are that: the screen display diffraction supporting component can avoid the internal stress generated during blank casting to a great extent by carrying out the preliminary heat treatment on the blank state, and avoids the processing of the subsequent working procedure with the internal stress; the blank is released from the processing stress, and the consistency of the sizes of the parts is ensured. Semi-finishing reserves a margin of 0.3mm minus 0.5mm on one side of the surface and the hole. The blank is subjected to secondary semi-finishing, and the smaller the allowance is during finishing, the better the stability of the whole processing of the part is; the finish machining is a key procedure, firstly, the machine tool needs to be preheated for more than 2 hours, the whole machine tool is guaranteed to be in a stable state, the structure is simple, the manufacturing is easy, the machining cost is low, and the installation on the airplane is convenient. The screen display diffraction support component reduces part deformation through hundreds of processing experiences, can ensure the mutual matching and the relative position of parts, can ensure the precision after long-term use, improves the processing quality stability of modified parts, and ensures that pilots can accurately observe, identify and control.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic perspective view of a general assembly;
FIG. 2 is a schematic rear view of the structure of FIG. 1;
FIG. 3 is a schematic side elevational view of FIG. 1;
in fig. 1, 2, 3: clamping base 1, block 2, base T-shaped lug 3, part blank 4, part side hinge lug seat 5, workbench 6, pressing plate 7, bolt 8, standard block 9, adhesive bonding point 10, blank bottom 11, front inclined surface 12, rear inclined surface 13, side 14, blank base surface 15 and bottom hinge lug seat 16.
Detailed Description
The invention is further described in detail below with reference to examples and embodiments:
example 1
Before the processing of the part blank 4, the part blank 4 is subjected to high-low temperature aging heat treatment of a first round; the first round starts the vacuum high-low temperature furnace through the first high-low temperature aging heat treatment, when the temperature rises to 150 ℃, the component blank 4 is put into the vacuum high-temperature furnace with 150 ℃ to keep warm for one hour, the component blank 4 is taken out to be transferred into a low-temperature box with minus 55 ℃ to keep warm for 1 hour after being uniformly heated, and the component blank 4 is respectively put into the vacuum high-temperature furnace with 150 ℃ and the low-temperature box with minus 55 ℃ to be treated as high-low temperature treatment; the part blank 4 is circularly subjected to two times of high-low temperature treatment according to the high-low temperature treatment method, and the internal stress of the part blank 4 after the two times of high-low temperature treatment is released or eliminated;
after the component blank 4 is processed at high and low temperatures twice, a pair of bottom hinge lugs 16 of the component blank 4 are yielded, the blank bottom surface 11 of the component blank 4 is placed on the raised block 2 in the center of the surface of the workbench 6 to be positioned, after the component blank 4 is positioned, nuts on bolts 8 at two sides are respectively rotated to rotate downwards to compress and fix the component blank 4, and after the component blank 4 is clamped and fixed, a large margin is reserved for milling the blank base surface 15 of the component blank 4 through a machine tool;
after milling of the blank base surface 15 is completed, the blank base surface 15 of the component blank 4 is turned downwards, the two downward ends of the blank base surface 15 are respectively clamped and fixed with the component side hinge lug seat 5 through the standard heightening blocks 9 by the nuts on the bolts 8 through the pressing plates 7, and the blank bottom surface 11, the front inclined surface 12, the rear inclined surface 13 and the side surface 14 of the component blank 4 are respectively milled for the first time through a machine tool; the first milling process is as follows: rough machining;
after the stabilization treatment of the component blank 4 is finished, the component blank 4 is repeatedly placed on the heightening block 2 for positioning, clamping and fixing again, the outer surface of the component blank 4 is machined through a machine tool to carry out semi-finishing, and the outer surface after the semi-finishing of the component blank 4 and the single side of the hole are respectively reserved with allowance of 0.3mm to 0.5 mm;
after the semi-finishing of the component blank 4 is finished, the finishing of the screen diffraction supporting component product is carried out on the component blank 4 through a machine tool, after the preheating is carried out on the machine tool before the finishing of the product, the bottom surface 11 of the blank of the semi-finishing component blank 4 is positioned downwards, the two downward ends of the blank are respectively positioned and clamped and fixed with the bottom of the component blank 4 through a standard heightening block 9 by rotating nuts on bolts 8, and the blank basal surface 15 is finish-milled through the machine tool; the flatness of the blank base surface 15 after finish milling is less than 0.01mm;
after finishing milling of the blank base surface 15, dismantling the pressing plate 7, placing the blank base surface 15 of the turning part blank 4 downwards on the heightening block 2 for positioning again, and carrying out finish milling on the lower two ends of the turning part blank 4 through the pressing plate 7 by rotating nuts on the bolts 8 and the standard heightening block 9 and the part side hinge lug seat 5 respectively; during finish milling, the component blank 4 is positioned, the flatness of the component blank 4 is smaller than 0.01mm, the frontal plane is smaller than 0.01mm for positioning, a dial indicator is pressed at four corners of the component blank 4, a nut on a bolt 8 slowly rotates, a pressing plate 7 gradually presses the component blank 4 downwards, and the component blank is stopped when the jump of the dial indicator is not larger than 0.01mm through observation; after the part blank 4 is observed, positioned, clamped and fixed, a machine tool respectively carries out finish milling on the bottom surface 11, the front inclined surface 12, the rear inclined surface 13 and the side surface 14 of the part blank 4 by small cutting tool amount, the pressing plate 7 is removed after finish milling is finished, and the finished part blank 4 is taken down to be a finished product of the screen diffraction supporting part for packaging, so that the processing of the screen diffraction supporting part is completed;
the large-allowance milling, rough machining, semi-finishing and finish milling of the component blank (4) are carried out by clamping a screen display diffraction supporting component machining clamping device, and the screen display diffraction supporting component machining clamping device is composed of a clamping base 1, a heightening block 2, a base T-shaped lug 3, a component blank 4, a component side hinge lug seat 5, a workbench 6, a pressing plate 7, a bolt 8, a standard heightening block 9, an adhesive bonding point 10, a blank bottom surface 11, a front inclined surface 12, a rear inclined surface 13, a side surface 14, a blank basal surface 15 and a bottom hinge lug seat 16; the method is characterized in that: a clamping base 1 is arranged on the workbench 6, a lifting block 2 is arranged on the clamping base 1, and a part blank 4 is arranged on the lifting block 2; the lower side of the part blank 4 is provided with a blank base surface 15, the upper side of the part blank 4 is provided with a blank bottom surface 11, the right end of the part blank 4 is provided with a front inclined surface 12, the left end of the part blank 4 is provided with a rear inclined surface 13, and two sides of the part blank 4 are provided with a pair of side surfaces 14; a pair of base T-shaped lugs 3 are symmetrically arranged on two sides of the rear part of the clamping base 1, a pair of component side hinge lug seats 5 are symmetrically arranged on two sides of the rear part below the pair of side surfaces 14, and the pair of component side hinge lug seats 5 and the pair of base T-shaped lugs 3 are correspondingly arranged up and down; a pair of bottom hinge lug seats 16 are symmetrically arranged on the two sides of the upper surface of the right end of the blank bottom surface 11;
the middle part of the upper surface of the T-shaped lugs 3 of the base is symmetrically reserved with a position space for mounting the pressing plate, the middle part of the position space is reserved with a screw hole, a bolt 8 is arranged in the screw hole, the upper part of the bolt 8 is provided with a pressing plate 7, the upper end of the bolt 8 is provided with a nut, one end of the outer side of the pressing plate 7 is provided with a standard heightening block 9, and the other end of the outer side of the pressing plate 7 is provided with a part side hinge lug seat 5 of the part blank 4; at least two pairs of adhesive bonds 10 are provided between the two symmetrical sides of the front part of the blank base surface 15 and the joint between the lifting block 2.
Example 2
After finishing the rough machining by machining the large allowance outside the part blank 4 through a machine tool, removing pressing plates 7 on two sides of the part blank 4, performing second-wheel high-low temperature aging heat treatment on the part blank 4 according to a first-wheel high-low temperature aging heat treatment method, wherein the second-wheel high-low temperature aging heat treatment on the part blank 4 is as follows: stabilization of the component blank 4.
Claims (2)
1. A processing method of a screen display diffraction support component comprises the steps of carrying out high-low temperature aging heat treatment on a component blank (4) for the first time before processing the component blank (4); the first round starts the vacuum high-low temperature furnace through the first high-low temperature aging heat treatment, when the temperature rises to 150 ℃, the component blank (4) is put into the vacuum high-temperature furnace with 150 ℃ to keep warm for one hour, the component blank (4) is taken out to be transferred into a low-temperature box with 55 ℃ below zero to keep warm for 1 hour after being uniformly heated, and the component blank (4) is respectively put into the vacuum high-temperature furnace with 150 ℃ and the low-temperature box with 55 ℃ below zero to be treated as high-low temperature treatment; the part blank (4) is circularly subjected to two times of high-low temperature treatment according to the high-low temperature treatment method, and the internal stress of the part blank (4) subjected to the two times of high-low temperature treatment is released or eliminated;
after the component blank (4) is processed at high and low temperature twice, a pair of bottom hinge lugs (16) of the component blank (4) are yielded, a blank bottom surface (11) of the component blank (4) is placed on a heightening block (2) in the center of a surface of a workbench (6) for positioning, after the component blank (4) is positioned, nuts on bolts (8) at two sides are respectively rotated to rotate to downwards compress a pressing plate (7) for compressing and fixing the component blank (4), and after the component blank (4) is clamped and fixed, a large allowance is reserved for milling processing of a blank base surface (15) of the component blank (4) through a machine tool;
after milling of the blank base surface (15) is completed, the blank base surface (15) of the component blank (4) is turned downwards, the two downward ends of the blank base surface are respectively clamped and fixed with the component side hinge lug seat (5) through the standard heightening block (9) by the nut rotation on the bolt (8) through the pressing plate (7), and the blank bottom surface (11), the front inclined surface (12), the rear inclined surface (13) and the side surface (14) of the component blank (4) are respectively milled for the first time through a machine tool; the first milling process is as follows: rough machining;
after the stabilization treatment of the component blank (4) is finished, the component blank (4) is placed on the heightening block (2) again for positioning, clamping and fixing, semi-finishing is carried out by machining the outer surface of the component blank (4), and the allowance of 0.3mm to 0.5mm is reserved on the outer surface of the semi-finished component blank (4) and on the single side of the hole respectively;
after the semi-finishing of the component blank (4) is finished, the finishing of the screen diffraction supporting component product is carried out on the component blank (4) through a machine tool, after the preheating is carried out on the machine tool before the finishing of the product, the bottom surface (11) of the blank of the semi-finishing component blank (4) is downwards positioned, the nuts on the bolts (8) are rotated, the downwards two ends of the nuts are respectively positioned, clamped and fixed with the bottom of the component blank (4) through standard heightening blocks (9), and the finish milling is carried out on a blank base surface (15) through the machine tool; the flatness of the blank base surface (15) after finish milling is less than 0.01mm;
the milling of the blank base surface (15) is completed, the pressing plate (7) is removed, the blank base surface (15) of the turning part blank (4) is downwards placed on the heightening block (2) for positioning again, and the two downward ends of the pressing plate (7) are respectively subjected to finish milling with the part side hinge lug seat (5) through the standard heightening block (9) by rotating nuts on the bolts (8); during finish milling, the component blank (4) is positioned, the flatness of the component blank (4) is smaller than 0.01mm, the frontal plane is smaller than 0.01mm, the dial indicator is pressed at four corners of the component blank (4), the nut on the bolt (8) slowly rotates, the pressing plate (7) gradually presses the component blank (4) downwards, and the component blank stops when the jump of the dial indicator is not larger than 0.01mm through observation; after the part blank (4) is observed, positioned, clamped and fixed, a machine tool respectively carries out finish milling on the blank bottom surface (11), the front inclined surface (12), the rear inclined surface (13) and the side surface (14) of the part blank (4) through small cutting tool amount, the pressing plate (7) is removed after finishing finish milling, and the finished part blank (4) is taken down to be a finished product of the screen diffraction supporting part for packaging, so that the processing of the screen diffraction supporting part is completed;
the large-allowance milling, rough machining, semi-finishing and finish milling of the component blank (4) are carried out by clamping a screen display diffraction support component machining clamping device, and the screen display diffraction support component machining clamping device is composed of a clamping base (1), a heightening block (2), a base T-shaped lug (3), a component blank (4), a component side hinge lug seat (5), a workbench (6), a pressing plate (7), bolts (8), a standard heightening block (9), an adhesive bonding point (10), a blank bottom surface (11), a front inclined surface (12), a rear inclined surface (13), a side surface (14), a blank base surface (15) and a bottom hinge lug seat (16); the method is characterized in that: a clamping base (1) is arranged on the workbench (6), a lifting block (2) is arranged on the clamping base (1), and a part blank (4) is arranged on the lifting block (2); the lower part of the part blank (4) is provided with a blank base surface (15), the upper part of the part blank (4) is provided with a blank bottom surface (11), the right end of the part blank (4) is provided with a front inclined surface (12), the left end of the part blank (4) is provided with a rear inclined surface (13), and two sides of the part blank (4) are provided with a pair of side surfaces (14); a pair of base T-shaped lugs (3) are symmetrically arranged on two sides of the rear part of the clamping base (1), a pair of component side hinge lug seats (5) are symmetrically arranged on two sides of the rear part below a pair of side surfaces (14), and the pair of component side hinge lug seats (5) and the pair of base T-shaped lugs (3) are correspondingly arranged up and down; a pair of bottom hinge lug seats (16) are symmetrically arranged on the two sides of the upper surface of the right end of the blank bottom surface (11);
the middle part of the upper surface of the T-shaped lugs (3) of the base is symmetrically reserved with a position space for mounting the pressing plate, the middle part of the position space is reserved with a screw hole, a bolt (8) is arranged in the screw hole, the upper part of the bolt (8) is provided with a pressing plate (7), the upper end of the bolt (8) is provided with a nut, one end of the outer side of the pressing plate (7) is provided with a standard heightening block (9), and the other end of the outer side of the pressing plate (7) is provided with a part side hinge lug seat (5) of the part blank (4); at least two pairs of adhesive bonding points (10) are arranged between the two symmetrical sides of the front part of the blank base surface (15) and the joint between the heightening blocks (2).
2. The method for processing the screen display diffraction supporting member as claimed in claim 1, wherein:
after finishing the rough machining through the large allowance machining outside the machine tool machining part blank (4), dismantling pressing plates (7) on two sides of the part blank (4), performing second-wheel high-low temperature aging heat treatment on the part blank (4) according to a first-wheel high-low temperature aging heat treatment method, wherein the second-wheel high-low temperature aging heat treatment on the part blank (4) is as follows: and (3) stabilizing the component blank (4).
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| CN111590122A (en) | 2020-08-28 |
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