CN114799755A - Boring machine processing horizontal subdivision compressor shell abdominal cavity positioning method - Google Patents
Boring machine processing horizontal subdivision compressor shell abdominal cavity positioning method Download PDFInfo
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- CN114799755A CN114799755A CN202210467162.0A CN202210467162A CN114799755A CN 114799755 A CN114799755 A CN 114799755A CN 202210467162 A CN202210467162 A CN 202210467162A CN 114799755 A CN114799755 A CN 114799755A
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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
- B23B—TURNING; BORING
- B23B35/00—Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods
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- 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
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The application provides a boring machine processing horizontal subdivision compressor shell abdominal cavity processing method, wherein a compressor comprises a shell, the shell comprises a first shell and a second shell, and the first shell is in contact with the second shell to form a contact surface; the method comprises the following steps: placing the contact surface of the housing perpendicular to a horizontal plane; processing an inner hole of a positioning boss of the abdominal cavity of the shell for the first time; centering the center of the inner hole of the positioning boss by taking the center of the inner hole of the bearing area as a reference; processing the inner hole of the positioning boss of the abdominal cavity of the shell for the second time; and processing the side wall of the positioning boss of the abdominal cavity of the shell. Because the contact surface of the compressor is perpendicular to the horizontal plane, the positioning precision and the clamping precision of the shell are improved in the subsequent processing process, the processing precision of the shell is improved, and the processing cost is reduced.
Description
Technical Field
The application belongs to the technical field of compressor shell machining, and particularly relates to a boring machine machining horizontal subdivision compressor shell abdominal cavity positioning method.
Background
The conventional common machining method for machining the abdominal cavity positioning spigot of the horizontal split compressor shell is gantry milling, and in the machining process, the shell is not accurately positioned and clamped, so that the machined shell is low in precision, and the machining cost is increased.
Disclosure of Invention
Therefore, the technical problem to be solved by the application is to provide a boring machine processing horizontal subdivision compressor shell abdominal cavity processing method, and the problems that in the processing process of a shell, the shell is not accurately positioned and clamped, and further the processed shell is low in precision and the processing cost is increased can be solved.
In order to solve the problems, the application provides a boring machine processing method for horizontally dividing the abdominal cavity of a compressor shell, which is characterized in that the compressor comprises a shell, the shell comprises a first shell and a second shell, and the first shell is in contact with the second shell to form a contact surface;
the method comprises the following steps:
placing the contact surface of the housing perpendicular to a horizontal plane;
processing an inner hole of a positioning boss of the abdominal cavity of the shell for the first time;
centering the center of the inner hole of the positioning boss by taking the center of the inner hole of the bearing area as a reference;
processing the inner hole of the positioning boss of the abdominal cavity of the shell for the second time;
and processing the side wall of the positioning boss of the abdominal cavity of the shell.
Optionally, positioning the contact surface of the housing in a vertical horizontal plane comprises:
placing the shell in the middle of at least two fixing devices, contacting one side of the shell with one of the fixing devices and connecting with the fixing device of one of the fixing devices, and contacting the other side of the shell with the fixing device of the other fixing device and connecting with the fixing device of the other fixing device.
Optionally, before placing the housing in the middle of at least two fixing devices, and contacting one side of the housing with one of the fixing devices and connecting with the fixing device of one of the fixing devices, the other side of the housing with the fixing device of the other of the fixing devices and connecting with the fixing device of the other of the fixing devices, the method comprises:
machining empty grooves in the bottom plane wall and the vertical plane wall of at least two fixing devices;
processing positioning grooves on the bottom plane walls of the at least two fixing devices;
processing an installation groove on a boring machine workbench, and installing a positioning block in the installation groove;
the positioning block on the workbench is placed in the positioning groove on the fixing device, and the positioning block is in contact with the positioning groove;
and processing the vertical surfaces of at least two fixing devices.
Optionally, placing the contact surface of the housing perpendicular to a horizontal plane includes:
placing the contact surface of the housing on a horizontal surface;
hoisting the shell by a hoisting rope;
and turning over the shell to enable the contact surface of the shell to be vertical to the horizontal plane.
Optionally, before the housing is lifted by the lifting rope, the method further includes:
and hanging rings are uniformly arranged on the outer side of the contact surface of the shell.
Optionally, centering the center of the inner hole of the positioning boss with the center of the inner hole of the bearing area includes:
the transverse numerical value of the inner hole of the bearing area and the vertical numerical value of the inner hole of the bearing area are measured by a meter;
the transverse numerical value of the inner hole of the positioning boss and the vertical numerical value of the inner hole of the positioning boss are measured by a meter;
and checking that the inner hole of the positioning boss and the inner hole of the bearing area are in a concentric position according to the difference value of the transverse numerical value of the inner hole of the bearing area and the transverse numerical value of the inner hole of the positioning boss and the difference value of the vertical numerical value of the inner hole of the bearing area and the vertical numerical value of the inner hole of the positioning boss.
Optionally, centering the center of the inner hole of the positioning boss with the center of the inner hole of the bearing area further includes:
and the value of the center of the shell is adjusted to be 0.08mm-0.1mm in the vertical and horizontal directions.
Optionally, processing the positioning boss sidewall of the abdominal cavity of the housing includes:
firstly, processing one side of the positioning boss for the first time;
checking the perpendicularity of the side wall of the positioning boss and the contact surface of the shell by striking a meter;
and carrying out secondary processing on one side of the positioning boss.
Optionally, the allowance for performing the first processing on the inner hole of the positioning boss of the abdominal cavity of the housing and the allowance for performing the first processing on the side wall of the positioning boss of the abdominal cavity of the housing are both 0.5mm to 1 mm.
Optionally, the roughness of the second machining of the positioning boss inner hole of the abdominal cavity of the housing and the roughness of the second machining of the positioning boss side wall of the abdominal cavity of the housing are all ra 3.2.
Advantageous effects
According to the boring mill processing horizontal subdivision compressor shell abdominal cavity processing method provided by the embodiment of the invention, the fixing device is connected with the boring mill workbench, the shell is lifted through the lifting rope, the contact surface of the shell is perpendicular to the horizontal plane, and the shell is connected with the fixing device, so that the first processing and the second processing of the positioning boss inner hole of the shell are realized, and the processing precision of the shell positioning boss inner hole and the clamping precision of the shell are improved. The cutter flower and the cutter connecting table generated by the processing of the boring machine are very small, and the roughness is improved, so that the positioning boss processed by the boring machine has high precision.
Drawings
FIG. 1 is a schematic flow chart of the positioning process of the abdominal cavity of the shell according to the embodiment of the present application;
FIG. 2 is a schematic structural diagram of a fixing device according to an embodiment of the present application;
FIG. 3 is a bottom view of the fastening device according to the embodiment of the present disclosure;
FIG. 4 is a schematic sectional view of an installation groove according to an embodiment of the present application.
The reference numerals are represented as:
1. a housing; 2. a fixing device; 3. positioning a groove; 4. mounting grooves; 5. positioning blocks; 6. a work bench.
Detailed Description
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
With combined reference to fig. 1 to 4, according to an embodiment of the present application, a boring machine processing horizontal split compressor shell abdominal cavity processing method includes that a compressor includes a shell 1, where the shell 1 includes a first shell and a second shell, and the first shell and the second shell are in contact with each other to form a contact surface; the method comprises the following steps: placing the contact surface of the housing 1 perpendicular to a horizontal plane; processing an inner hole of a positioning boss of the abdominal cavity of the shell 1 for the first time; centering the center of the inner hole of the positioning boss by taking the center of the inner hole of the bearing area as a reference; carrying out secondary processing on an inner hole of the positioning boss of the abdominal cavity of the shell 1; and processing the side wall of the positioning boss of the abdominal cavity of the shell 1. The contact surface of the compressor shell 1 is perpendicular to the horizontal plane, the inner hole of the positioning boss is firstly machined, after alignment is carried out, machining is carried out for the second time, and then the side wall of the positioning boss is machined.
Further, the first casing and the second casing of the compressor are separated from each other, wherein the combined shape of the first casing and the second casing has a circular ring-shaped cross section, and the contact surface, i.e., the median plane, of the first casing and the second casing is the contact surface.
Furthermore, the shell 1 of the compressor is an MCL shell, and the locating boss in the abdominal cavity of the MC shell processed by the numerical control boring and milling machine needs to lift the median plane of the shell 1 by a lifting rope, so that the contact plane, namely the median plane, is in a vertical state, namely is vertically arranged with the horizontal plane.
Further, after the shell 1 is installed and aligned, an inner hole of the positioning boss is processed through the accessory right-angle head, the three-edge cutter head is installed on the accessory right-angle head, wherein the diameter of the cutter head is phi 400mm, the thickness of the cutter head is 28mm, the tooth number of the cutter head is 33, the inner hole of the positioning boss is processed through the three-edge cutter head, and a processing allowance of 0.5mm-1mm is reserved. And measuring the inner hole allowance condition by using an inner hole micrometer after machining, and meeting the range of the size on the drawing.
Furthermore, the coaxiality of the inner hole of the positioning boss and the inner hole of the bearing area of the shell 1 is checked by using a dial indicator, the difference of the bottom and the difference of the two sides of the middle facet are required to be checked by using the dial indicator, and the Z-axis and Y-axis coordinates of the machine tool are adjusted according to the difference to ensure the coaxiality of the inner hole of the positioning boss and the inner hole of the bearing area of the shell 1.
Further, after the center of the inner hole of the positioning boss is aligned, the inner hole of the positioning boss is subjected to finish machining. In the processing process, the shell 1 is processed into a large semicircle because the shell 1 is processed considering the heat expansion amount of the unit in operation, and the center of the shell is adjusted to be 0.08mm-0.10mm towards the direction of the shell. And after processing, measuring the size of the inner hole of the positioning boss by using an inside micrometer, and meeting the drawing requirements.
Further, after secondary machining, namely finish machining, the roughness is checked to meet the requirement of a drawing Ra3.2, and after the requirement is met, the cutter is arranged to finish machining the size of the inner hole of the first positioning boss. And finishing the machining of the sizes of the inner holes of other positioning bosses of the H2960 shell 1 by using the same machining method. The surface quality of the gantry milling machine is better than that of a gantry milling machine, the cutter is very small, and the processing quality is improved.
Furthermore, after rancour second processing of location boss hole, accord with the requirement of drawing, process the location boss lateral wall, wherein the location boss lateral wall is the face of both sides, and the width dimension of both sides face is ensured in the processing.
Furthermore, one side face of the positioning boss is machined through the three-edge cutter head, machining allowance of 0.5mm-1mm is reserved, after machining, perpendicularity of the machined side face of the positioning boss and a contact face, namely a median plane, of the shell 1 is checked through dial indicator striking, the machined side face is found to be 0.04mm inclined after striking, change of an X axis of a machine tool is increased according to an inclined direction, and machining of the side face of the positioning boss is completed through three-axis linkage of the machine tool.
Furthermore, the surface of the workpiece is checked by the processing after adjustment and then by the dial indicator, the value of the dial indicator is unchanged, namely the display value of the dial indicator is always unchanged and is always zero. Namely, the processing is finished.
Further, the other side surface is processed by the same method. And (3) measuring the width allowance of the positioning boss by using a common normal micrometer before processing to be 0.5mm, and processing to the drawing size according to the allowance.
Positioning the contact surface of the housing 1 vertically horizontal comprises: the housing 1 is placed in the middle of at least two fixing means 2, one side of the housing 1 is in contact with one of the fixing means 2 and is connected to one of the fixing means 2, and the other side of the housing 1 is in contact with the other fixing means 2 and is connected to the other fixing means 2. Carry out fixed connection to casing 1 through fixing device 2, and then realize the location clamping to casing 1, fix casing 1 through two at least fixing device 2, improve the precision of casing 1 clamping, and then improve the machining precision to casing 1.
Furthermore, according to the external size of the shell 1 of the MCL700-900, the corresponding clamping and fixing device 2 is designed, so that the clamping precision is improved, the positioning precision of the shell 1 is improved, and the machining precision of the shell 1 is improved.
Further, when two fixing devices 2 are provided, the two fixing devices are located on two sides of the housing 1, and the contact surface of the housing 1 is perpendicular to the horizontal plane, that is, the two sides of the housing 1 are fixedly connected with the fixing devices 2 through bolts. Wherein, the four corners of the shell 1 are connected with each other through bolts and the fixing device 2, thereby improving the connection stability.
Further, the fixture 2 is analyzed according to a finite element analysis model, wherein it is mesh-split in an ANSYS environment, resulting in a finite element mesh model. The fixing device 2 finite element model is composed of 143693 units and 241613 nodes, and a 10-node tetrahedron unit Solid187 is adopted to establish a finite element mesh model. The load bearing capacity of the fixing device 2 is high, and the machining and cutting load of the fixing device 2 is improved.
Before placing the housing 1 in the middle of at least two fixing devices 2, and contacting one side of the housing 1 with one of the fixing devices 2 and connecting with one of the fixing devices 2, and contacting the other side of the housing 1 with the other of the fixing devices 2 and connecting with the other of the fixing devices 2, the method comprises: machining empty grooves on the bottom plane wall and the vertical plane wall of at least two fixing devices 2; processing positioning grooves 3 on the bottom plane walls of the at least two fixing devices 2; processing an installation groove 4 on a boring machine workbench 6, and installing a positioning block 5 in the installation groove 4; the positioning block 5 on the workbench 6 is placed in the positioning groove 3 on the fixing device 2, and the positioning block 5 is in contact with the positioning groove 3; the vertical surfaces of at least two fixing devices 2 are processed. Through the processing to fixing device 2, and then realize fixing of fixing device 2, improve the positioning accuracy when fixed casing 1 simultaneously, and the precision when clamping casing 1.
Furthermore, the bottom plane wall and the vertical plane wall of the fixing device 2 are provided with empty grooves, so that the contact area of the contact surface of the fixing device 2 and the shell 1 is reduced, and the positioning precision of the clamping shell 1 of the fixing device 2 is improved.
Further, a mounting groove 4 is machined in the boring machine workbench 6, wherein the mounting groove 4 is a T-shaped groove. And (4) performing meter reading detection precision on the T-shaped groove, wherein the meter reading value is 0.02, namely the T-shaped groove meets the use standard. The straight groove size of the T-shaped groove is measured to be 28mm +0.02 mm.
Further, the empty groove of the bottom plane wall of the fixing device 2 is processed, and two positioning grooves 3 are processed on the bottom plane wall, wherein the positioning grooves 3 are positioning key grooves, the width of each positioning key groove is 28mm, and the length of each positioning key groove is 100 mm. The positioning key groove is used for positioning the bottom, and the fixing device 2 is prevented from being displaced due to cutting force in the machining process, so that the machining and manufacturing precision of the abdominal cavity positioning boss of the shell 1 is not affected.
Further, after the bottom surface is machined, the two fixing devices 2 are installed on the workbench 6, wherein a positioning block 5 is installed in the positioning groove 3 on the workbench 6, and the positioning block 5 is a positioning key. After the fixing devices 2 are positioned, the vertical surfaces of the two fixing devices 2 are machined by utilizing the surface milling cutter, so that the vertical surfaces of the two fixing devices 2 can be ensured to be parallel to each other. After processing, the vertical surfaces of the two fixing devices 2 are checked by printing a meter, and the value of the meter is 0.01. The machining precision can meet the use requirement of the tool.
Placing the contact surface of the housing 1 perpendicular to a horizontal plane comprises: placing the contact surface of the housing 1 on a horizontal surface; hoisting the shell 1 by a lifting rope; and turning the shell 1 to enable the contact surface of the shell 1 to be vertical to the horizontal plane. The shell is lifted through the lifting rope, the contact surface is perpendicular to the horizontal plane, and then the shell 1 and the fixing device 2 are connected with each other, the efficiency of clamping the shell 1 is improved, and meanwhile the clamping precision is improved.
Furthermore, an annular hanging ring is respectively installed at four corners of the contact surface of the shell 1, so that the shell 1 can be conveniently lifted by a lifting rope, wherein the lifting rope penetrates through the annular hanging ring and is fixedly connected with the annular hanging ring, and the shell 1 can be lifted by the lifting rope, wherein the lifting rope is a steel wire rope, and the lifting stability is improved.
Further, the contact surface of the MCL shell 1, namely the median plane, is placed on a wood square plate downwards, four annular hanging rings are installed on one side of the contact surface of the shell 1, namely the median plane, then four lifting ropes with equal length are used for lifting, two lifting rings are used for lifting the median plane on one side of the shell 1, and the other two lifting rings are used for lifting the installed annular hanging rings. After the shell 1 is horizontally lifted, the small hook of the crown block slowly descends, and the middle section of the shell 1 is gradually lifted to be in a vertical state. The annular hoisting ring is effectively installed, the collision scratch of the middle section of the shell 1 when the middle section of the shell is hoisted vertically in the air is avoided, and the hoisting rope does not damage paint of the shell plate of the shell 1 in the hoisting process.
Before the housing 1 is hoisted by the hoisting rope, the method further comprises the following steps: and hanging rings are uniformly arranged on the outer side of the contact surface of the shell 1. Wherein, through the installation of rings, the lifting rope of being convenient for passes rings, promotes casing 1, improves the efficiency of promoting casing 1.
Furthermore, four corners of the contact surface of the shell 1 are respectively provided with a hanging ring, so that the stability of fixation is improved.
With the center of bearing area hole, the alignment the center of location boss hole includes: the transverse numerical value of the inner hole of the bearing area and the vertical numerical value of the inner hole of the bearing area are measured by a meter; the transverse numerical value of the inner hole of the positioning boss and the vertical numerical value of the inner hole of the positioning boss are measured by a meter; and checking that the inner hole of the positioning boss and the inner hole of the bearing area are in a concentric position according to the difference value of the transverse numerical value of the inner hole of the bearing area and the transverse numerical value of the inner hole of the positioning boss and the difference value of the vertical numerical value of the inner hole of the bearing area and the vertical numerical value of the inner hole of the positioning boss. And determining the coaxiality of the inner hole of the positioning boss and the inner hole of the bearing area through the difference value of the horizontal numerical value and the vertical numerical value, and further positioning the inner hole of the positioning boss to improve the processing precision.
Furthermore, according to the checking of a meter, the horizontal numerical value and the vertical numerical value, the difference value of the horizontal numerical value of the inner hole of the positioning boss and the horizontal numerical value of the inner hole of the bearing area, the difference value of the vertical numerical value of the inner hole of the positioning boss and the vertical numerical value of the inner hole of the bearing area, the coordinates of the Z axis and the Y axis of the machine tool are adjusted according to the difference values, and the coaxiality of the inner hole of the positioning boss and the inner hole of the bearing area is further ensured.
With the center of bearing area hole, alignment the center of location boss hole still includes: and the value of the center of the shell 1 is adjusted to be 0.08mm-0.1mm in the vertical and horizontal directions. According to the machining position of the shell, the shell 1 is adjusted up and down, and the machining precision of the inner hole of the positioning boss of the shell 1 is improved.
Further, the value of the center of the adjustment case 1 is preferably 0.09mm, and is generally adjusted according to the amount of thermal expansion of the unit during processing of the case 1.
The processing of the positioning boss side wall of the abdominal cavity of the housing 1 includes: firstly, processing one side of the positioning boss for the first time; checking the perpendicularity of the side wall of the positioning boss and the contact surface of the shell 1 by a clock; and carrying out secondary processing on one side of the positioning boss. After the first processing, alignment is carried out, and the second processing is carried out, so that the processing precision of the side wall of the positioning boss is improved.
Further, the first processing is rough processing, the second processing is finish processing, machining allowance is reserved through rough processing, finish processing is carried out, and surface roughness is improved.
The allowance for the first processing of the inner hole of the positioning boss of the abdominal cavity of the shell 1 and the allowance for the first processing of the side wall of the positioning boss of the abdominal cavity of the shell 1 are both 0.5mm-1 mm.
Furthermore, the width allowance is preferably 0.06mm, and is measured by a common normal micrometer, so that the processing precision is improved.
The roughness of the second processing of the positioning boss inner hole of the abdominal cavity of the shell 1 and the roughness of the second processing of the positioning boss side wall of the abdominal cavity of the shell 1 are all Ra3.2. The surface roughness is improved by processing with a boring machine.
This application is through with fixing device 2 and 6 interconnect of boring machine workstation, and it is simultaneously hoist casing 1 through the lifting rope, with casing 1's contact surface and horizontal plane mutually perpendicular, simultaneously with casing 1 and fixing device 2 interconnect, realize carrying out first processing and second processing to casing 1's location boss hole, improve the machining precision to casing 1 location boss hole to the precision of the clamping to casing 1. The cutter flower and the cutter connecting table generated by the processing of the boring machine are very small, and the roughness is improved, so that the positioning boss processed by the boring machine has high precision.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (10)
1. The method for machining the abdominal cavity of the horizontal split compressor shell by the boring mill is characterized in that the compressor comprises a shell (1), the shell (1) comprises a first shell and a second shell, and the first shell is in contact with the second shell to form a contact surface;
the method comprises the following steps:
placing the contact surface of the housing (1) perpendicular to a horizontal plane;
processing an inner hole of a positioning boss of the abdominal cavity of the shell (1) for the first time;
centering the center of the inner hole of the positioning boss by taking the center of the inner hole of the bearing area as a reference;
carrying out secondary processing on an inner hole of the positioning boss of the abdominal cavity of the shell (1);
and processing the side wall of the positioning boss of the abdominal cavity of the shell (1).
2. The boring machine machining horizontal split compressor housing abdominal cavity machining method according to claim 1, characterized in that positioning the contact surface of the housing (1) vertically and horizontally comprises:
-placing the housing (1) in the middle of at least two fixing means (2), -contacting one side of the housing (1) with one of the fixing means (2) and connecting it with one of the fixing means (2), -contacting the other side of the housing (1) with the other fixing means (2) and connecting it with the other fixing means (2).
3. The boring machine machining horizontal subdivision compressor housing abdominal cavity machining method according to claim 2, characterized in that placing the housing (1) in the middle of at least two fixtures (2), contacting one side of the housing (1) with one of the fixtures (2) and connecting with the fixture (2) of one of them, and contacting the other side of the housing (1) with the fixture (2) of the other and connecting with the fixture (2) of the other, comprises before:
machining empty grooves on the bottom plane wall and the vertical plane wall of at least two fixing devices (2);
processing positioning grooves (3) on the bottom plane walls of the at least two fixing devices (2);
processing an installation groove (4) on a boring machine workbench (6), and installing a positioning block (5) in the installation groove (4);
the positioning block (5) on the workbench (6) is placed in the positioning groove (3) on the fixing device (2), and the positioning block (5) is in contact with the positioning groove (3);
machining the vertical faces of at least two of the fixing devices (2).
4. The boring machine processing horizontal subdivision compressor housing abdominal cavity processing method according to claim 1, characterized in that placing the contact surface of the housing (1) perpendicular to a horizontal plane comprises:
-placing the contact surface of the housing (1) on a horizontal plane;
hoisting the shell (1) by a hoisting rope;
and turning the shell (1) to enable the contact surface of the shell (1) to be vertical to the horizontal plane.
5. The boring machine processing horizontal subdivision compressor housing abdominal cavity processing method according to claim 4, characterized in that before the housing (1) is lifted by a lifting rope, the method further comprises:
and hanging rings are uniformly arranged on the outer side of the contact surface of the shell (1).
6. The boring machine processing horizontal split compressor housing abdominal cavity processing method according to claim 1, wherein centering the center of the positioning boss inner hole with the center of the bearing area inner hole comprises:
the transverse numerical value of the inner hole of the bearing area and the vertical numerical value of the inner hole of the bearing area are measured by a meter;
the transverse numerical value of the inner hole of the positioning boss and the vertical numerical value of the inner hole of the positioning boss are measured by a meter;
and checking that the inner hole of the positioning boss and the inner hole of the bearing area are in a concentric position according to the difference value of the transverse numerical value of the inner hole of the bearing area and the transverse numerical value of the inner hole of the positioning boss and the difference value of the vertical numerical value of the inner hole of the bearing area and the vertical numerical value of the inner hole of the positioning boss.
7. The boring machine processing horizontal split compressor housing abdominal cavity processing method according to claim 6, wherein centering the center of the positioning boss inner hole with the center of the bearing area inner hole further comprises:
and the value of the center of the shell (1) is adjusted to be 0.08mm-0.1mm in the vertical and horizontal directions.
8. The boring machine processing horizontal split compressor housing abdominal cavity processing method according to claim 1, wherein the processing of the positioning boss side wall of the abdominal cavity of the housing (1) comprises:
firstly, processing one side of the positioning boss for the first time;
checking the perpendicularity of the side wall of the positioning boss and the contact surface of the shell (1) by a watch;
and carrying out secondary processing on one side of the positioning boss.
9. The boring machine processing horizontal split compressor housing abdominal cavity processing method according to claim 8, wherein a margin for first processing of the positioning boss inner hole of the abdominal cavity of the housing (1) and a margin for first processing of the positioning boss side wall of the abdominal cavity of the housing (1) are both 0.5mm to 1 mm.
10. The boring machine processing horizontal split compressor housing abdominal cavity processing method according to claim 8, wherein the roughness of the second processing of the positioning boss inner hole of the abdominal cavity of the housing (1) and the roughness of the second processing of the positioning boss side wall of the abdominal cavity of the housing (1) are both ra 3.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210467162.0A CN114799755B (en) | 2022-04-29 | 2022-04-29 | Method for machining abdominal cavity of horizontal split compressor shell by boring machine |
Applications Claiming Priority (1)
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130309085A1 (en) * | 2012-05-15 | 2013-11-21 | Solar Turbines Incorporated | Compressor case overhaul |
| CN204449436U (en) * | 2014-12-16 | 2015-07-08 | 北京航天新风机械设备有限责任公司 | The horizontal milling attachment of a kind of housing cavity |
| CN107984166A (en) * | 2017-11-01 | 2018-05-04 | 沈阳透平机械股份有限公司 | The abdominal cavity processing method of horizonally split formula centrifugal compressor casing |
| CN109648260A (en) * | 2018-12-10 | 2019-04-19 | 哈尔滨汽轮机厂有限责任公司 | A kind of microstome, large cavity bearing block shell processing method |
| CN110052859A (en) * | 2019-05-10 | 2019-07-26 | 海宁弘德机械有限公司 | A kind of compressor housing tooling |
| CN111037362A (en) * | 2019-12-18 | 2020-04-21 | 沈阳鼓风机集团核电泵业有限公司 | Machining and aligning method for split type part |
| CN212886243U (en) * | 2020-07-11 | 2021-04-06 | 天津市明远金属制品有限公司 | Positioning fixture is used in processing of casing inner chamber |
-
2022
- 2022-04-29 CN CN202210467162.0A patent/CN114799755B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130309085A1 (en) * | 2012-05-15 | 2013-11-21 | Solar Turbines Incorporated | Compressor case overhaul |
| CN204449436U (en) * | 2014-12-16 | 2015-07-08 | 北京航天新风机械设备有限责任公司 | The horizontal milling attachment of a kind of housing cavity |
| CN107984166A (en) * | 2017-11-01 | 2018-05-04 | 沈阳透平机械股份有限公司 | The abdominal cavity processing method of horizonally split formula centrifugal compressor casing |
| CN109648260A (en) * | 2018-12-10 | 2019-04-19 | 哈尔滨汽轮机厂有限责任公司 | A kind of microstome, large cavity bearing block shell processing method |
| CN110052859A (en) * | 2019-05-10 | 2019-07-26 | 海宁弘德机械有限公司 | A kind of compressor housing tooling |
| CN111037362A (en) * | 2019-12-18 | 2020-04-21 | 沈阳鼓风机集团核电泵业有限公司 | Machining and aligning method for split type part |
| CN212886243U (en) * | 2020-07-11 | 2021-04-06 | 天津市明远金属制品有限公司 | Positioning fixture is used in processing of casing inner chamber |
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| CN114799755B (en) | 2023-08-04 |
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