CN115255812B - Manufacturing process of large-sized special-coated double-sided seat board - Google Patents
Manufacturing process of large-sized special-coated double-sided seat board Download PDFInfo
- Publication number
- CN115255812B CN115255812B CN202210672982.3A CN202210672982A CN115255812B CN 115255812 B CN115255812 B CN 115255812B CN 202210672982 A CN202210672982 A CN 202210672982A CN 115255812 B CN115255812 B CN 115255812B
- Authority
- CN
- China
- Prior art keywords
- double
- sided seat
- turning
- seat board
- sided
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to the technical field of manufacturing of ship auxiliary equipment, in particular to a manufacturing process of a large special-coated double-sided seat board, which comprises prefabricating of a turning clamp, design of a blanking diagram, discharging, blanking cutting of a steel plate, manufacturing of a welding groove, splicing before welding, post-welding treatment, rough turning, natural deformation detection of a rough turning, programming of a turning clamp correction processing program, compensation correction of the turning clamp, finish turning, restoration correction of the turning clamp, finish turning of a surface of the double-sided seat board, inner and outer circle processing of the double-sided seat board, drilling processing and special coating; the invention reduces the plane deformation of the double-sided seat board during mechanical processing and improves the sealing reliability of the double-sided seat board during installation and use.
Description
Technical Field
The invention relates to the technical field of manufacturing of ship accessory equipment, in particular to a manufacturing process of a large-sized special-coated double-sided seat board.
Background
910RFEU refrigerated container ship is equipped with a common mixed desulfurization washing system for a host and a generator to meet the emission requirement of a sulfur control zone in order to meet the emission requirement of tier II of exhaust gas. According to the mixed desulfurization washing system, the closed circulation cabin is additionally arranged at the outlet of the bottom of the original desulfurization tower, the injection pipe part of the closed circulation cabin is provided with the large-sized double-sided seat board, and no corresponding double-sided seat board product exists in the market due to the large size of the double-sided seat board, and the double-sided seat board product needs to be manufactured as a special piece. The large double-sided seat board is a large annular flange, and a plurality of positioning holes and threaded holes are respectively arranged on the front side and the back side of the annular flange along the circumferential direction. In order to reduce the manufacturing cost, the large-sized double-sided seat board adopts a steel plate assembly welding structure, mechanical processing is carried out after welding, and special antirust coating is required after mechanical processing so as to meet the requirements of antirust performance.
Because the size of the double-sided seat board is large, and certain stress exists in the welded double-sided seat board, if the conventional clamping is adopted to carry out driving processing on a vertical lathe, plane deformation is very easy to generate, and when the plane deformation exceeds a certain value, the double-sided seat board is not tightly sealed after being installed, so that the reliability of the double-sided seat board is reduced.
Disclosure of Invention
In order to solve the problems, the invention provides a manufacturing process of a large-sized special-coated double-sided seat board, which aims to reduce plane deformation of the double-sided seat board during mechanical processing and improve sealing reliability of the double-sided seat board during installation and use. The specific technical scheme is as follows:
a manufacturing process of a large-scale special-coated double-sided seat board comprises the following steps:
(1) Prefabrication of a turning clamp: designing and manufacturing a turning clamp for finish turning for machining the double-sided seat plate in advance;
(2) Designing a blanking chart: according to the design drawing of the double-sided seat board, the blanking diagram design of the double-sided seat board is carried out; the double-sided seat board in the blanking diagram is divided into a plurality of sector boards;
(3) Discharging: discharging the sector plates by adopting discharging software according to the production quantity of the double-sided seat plates to form a discharging cutting CAD graph of the double-sided seat plates;
(4) Cutting steel plates: a numerical control plasma cutting machine tool is adopted, a steel plate is paved on a workbench of the numerical control plasma cutting machine tool, a discharging cutting CAD graph is led into the numerical control plasma cutting machine tool, and the steel plate is cut into a plurality of sector plates by utilizing a cutting program built in the numerical control plasma cutting machine tool;
(5) Manufacturing a welding groove: welding grooves are formed in splicing parts of two ends of the circumferential direction of the sector plate;
(6) Splicing before welding: assembling a plurality of sector plates into a double-sided seat plate along the circumferential direction, and performing spot welding fixation at the assembled welding groove;
(7) Welding: welding the assembled and spot-welded double-sided seat plates;
(8) Post-welding treatment: post-welding shaping and stress relief treatment:
(9) Rough turning: rough turning of the double-sided seat boards is carried out by adopting a turning and milling composite numerical control vertical lathe with a C shaft; the rough turning comprises upper and lower plane machining and inner and outer circle machining of the double-sided seat board;
(10) And (3) detecting the natural deformation of the rough turning: after the double-sided seat board is roughly turned, loosening the clamping of the double-sided seat board, enabling the double-sided seat board to be placed on a workbench of the turning and milling composite numerical control vertical lathe in a natural state, installing a laser ranging probe on the turning and milling composite numerical control vertical lathe, and detecting the deformation of an upper plane of the double-sided seat board in the circumferential direction; note that the zero position is marked before detection;
(11) Programming a turning clamp correction processing program: according to the deformation of the upper plane of the double-sided seat board in the circumferential direction, a positioning plane correction processing program of the turning clamp is compiled; in the positioning plane correction processing program of the turning clamp, correction compensation quantity of the positioning plane of the turning clamp is set; the correction compensation quantity is equal to the deformation quantity of the upper plane of the double-sided seat board in size and opposite in direction; namely, corresponding to the position of the upper plane bulge of the double-sided seat plate, setting a concave correction compensation amount at the corresponding position of the positioning plane of the turning clamp, wherein the magnitude of the concave correction compensation amount is equal to the bulge amount at the corresponding position of the upper plane of the double-sided seat plate; the method comprises the steps that a bulge correction compensation amount is arranged at a corresponding position of a positioning plane of a turning clamp corresponding to the position of an upper plane recess of a double-sided seat plate, and the size of the bulge correction compensation amount is equal to the recess amount of the corresponding position of the upper plane of the double-sided seat plate;
(12) And (3) compensating and correcting the turning clamp: installing a prefabricated turning clamp on a turning and milling composite numerical control vertical lathe, and setting a zero position; milling and correcting the positioning plane of the turning clamp through a turning clamp correction processing program according to the set correction compensation quantity of the positioning plane of the turning clamp;
(13) Finish turning: the upper plane of the double-sided seat board is turned over and then arranged downwards, and then the double-sided seat board is positioned on the positioning plane of the turning clamp, and the zero position of the double-sided seat board is aligned with the zero position of the turning clamp; then, carrying out lateral multipoint clamping on the double-sided seat board, and carrying out plane finish turning after clamping;
(14) Restoration correction of the turning clamp: turning and flattening the positioning plane of the turning clamp;
(15) Finish turning of the double-sided seat plate: positioning a plane on the double-sided seat plate, which is subjected to finish turning, on a plane flattened by turning a fixture, then carrying out lateral multipoint clamping on the double-sided seat plate, and carrying out plane adjustment finish turning after clamping;
(16) Processing inner and outer circles of the double-sided seat plate: compacting the end surfaces of the double-sided seat boards, and respectively finishing the inner circle and the outer circle of the double-sided seat boards;
(17) Drilling: drilling positioning holes and threaded holes on the plane of the double-sided seat board;
(18) And (3) special coating: and (5) carrying out rust-proof coating on the finished double-sided seat board.
Preferably, in the coarse turning natural deformation amount detection in the step (10), N detection points are arranged at intervals in the circumferential direction of the upper plane of the double-sided seat board, and the natural deformation amount of the double-sided seat board at the positions of the N detection points is measured; meanwhile, in the step (11) of programming the turning clamp correction processing program, according to the natural deformation of the N detection points, a function curve of the natural deformation of any position point in the circumferential direction of the plane on the double-sided seat plate is fitted by adopting a least square method, and then the turning clamp correction processing program is programmed according to the function curve.
Preferably, in the post-welding treatment in the step (8), a vibration aging device is used to perform stress relief treatment on the welded double-sided seat plate.
In the invention, the vibration aging device comprises a base with an upper flange and a lower flange, and a thickened elastic rubber pad arranged on the end face of the upper flange of the base; the double-sided seat board is positioned on the thickened elastic rubber pad, a cross is fixed on the double-sided seat board through spot welding, the center of the cross is positioned at the center axis of the double-sided seat board, and a vibration aging instrument is arranged at the center of the cross.
As a further improvement of the invention, the vibration aging device is a forced shaping aging composite device, the forced shaping aging composite device comprises a plurality of servo electric push rods which are fixed on a lower flange of a base and are arranged at intervals along the circumferential direction, the upper ends of telescopic rods of the servo electric push rods are provided with threaded connecting rods, the threaded connecting rods penetrate through holes in the upper flange and a thickened elastic rubber pad and then are connected with threaded holes in the double-sided seat plate, and the double-sided seat plate is tensioned on the thickened elastic rubber pad through the servo electric push rods and realizes forced shaping aging through the vibration aging instrument.
As a further improvement of the invention, a tension pressure sensor is arranged between the telescopic rod of the servo electric push rod and the threaded connecting rod; the servo electric push rod and the pull pressure sensor are respectively connected with the forced shaping controller.
Preferably, the forced shaping controller is a PLC controller or an MCU controller.
In the invention, the method for forced shaping and aging by the forced shaping and aging composite device comprises the following steps:
s1, pre-tightening after installation of a double-sided seat board: after the double-sided seat board is mounted on the base, the initial pretightening force between the double-sided seat board and the thickened elastic rubber pad is regulated by the servo electric push rods, so that the tensioning force values of the tension pressure sensors on the servo electric push rods are consistent;
s2, compounding forced shaping and aging: starting a vibration aging instrument to perform vibration aging stress relief treatment on the double-sided seat board, and realizing forced shaping and aging compounding through limiting of each servo electric push rod on the double-sided seat board;
8. the process for manufacturing a large-sized special coated double-sided seat plate according to claim 7, wherein the method for forced shaping and aging by the forced shaping and aging composite device further comprises the following steps:
s3, reverse forced shaping: after vibration aging is finished, the forced shaping controller detects the tensioning force value of each tension pressure sensor through the tension pressure sensor on each servo electric push rod; and (3) applying a reverse forced shaping amount opposite to the deformation direction to the position with the expected deformation by adjusting the expansion and contraction amount of the servo electric push rod at the position with the expected deformation amount due to the larger change of the tension force relative to the initial pretightening force, and starting the vibration aging instrument to perform vibration aging treatment again after the adjustment is completed.
As a preferable scheme of the turning clamp, a lateral clamping device for laterally and multipoint clamping the double-sided seat plate is arranged on the turning clamp, the lateral clamping device comprises a plurality of lateral floating pressing assemblies which are circumferentially arranged on the turning clamp at intervals, each lateral floating pressing assembly comprises a cylinder, an inner pressing block and an outer pressing block which are respectively fixed at two ends of the cylinder, the inner pressing block is provided with an inner pressing head, and the outer pressing block is provided with a pressing screw; the positioning device comprises a turning clamp, a cylinder, an inner jacking head, a jacking screw and a double-sided seat plate, wherein the turning clamp is provided with a transverse positioning through hole at a position below a positioning plane of the turning clamp, the cylinder is arranged on the transverse positioning through hole in a sliding mode, the inner jacking head transversely jacks an inner hole of the double-sided seat plate, and the jacking screw transversely jacks an outer circle of the double-sided seat plate.
The beneficial effects of the invention are as follows:
firstly, the manufacturing process of the large special-coated double-sided seat board carries out natural deformation detection of the double-sided seat board after rough turning, and compensates and corrects the positioning plane of the turning clamp by utilizing the turning and milling composite numerical control vertical lathe with the C axis according to the natural deformation detection result of the plane of the double-sided seat board, so that the double-sided seat board can be better and naturally attached to the positioning plane of the turning clamp when the surface is adjusted and positioned, the plane deformation during the follow-up finish turning can be greatly reduced, and the sealing reliability of the double-sided seat board in installation and use is improved.
Secondly, according to the manufacturing process of the large special-coated double-sided seat board, the rough turning natural deformation detection data is subjected to smoothing treatment by adopting a least square method to form a function curve of the natural deformation of the double-sided seat board, and then a turning clamp is compiled according to the function curve to correct a machining program, so that the programming efficiency is greatly improved.
Thirdly, the manufacturing process of the large special-coated double-sided seat board, which is disclosed by the invention, has the advantages that the special-designed vibration aging device can realize the combined action of forced shaping and aging of the double-sided seat board blank, so that the accuracy of the size and shape of the double-sided seat board blank can be improved, the use of a steel plate with smaller thickness allowance is facilitated, the material cost is saved, and the machining workload is reduced.
Fourth, according to the manufacturing process of the large-sized special-coated double-sided seat plate, the lateral floating pressing assembly is arranged on the turning clamp, so that the circumferential deformation of the lateral clamping force on the double-sided seat plate can be eliminated or reduced, and the machining precision of the large-sized special-coated double-sided seat plate is further improved.
Drawings
FIG. 1 is a schematic flow chart of a process for manufacturing a large-scale special-coated double-sided seat plate of the invention;
FIG. 2 is a schematic structural view of the lathe clamp;
fig. 3 is a schematic diagram of the structure of the vibration aging device.
In the figure: 1. the device comprises a double-sided seat plate, 2, a turning clamp, 3, a lateral clamping device, 4, a positioning hole, 5, a threaded hole, 6, a vibration aging device, 7, an upper flange, 8, a lower flange, 9, a base, 10, a thickened elastic rubber pad, 11, a cross, 12, a vibration aging instrument, 13, a servo electric push rod, 14, a threaded connecting rod, 15, a tension pressure sensor, 16, a lateral floating jacking component, 17, a cylinder, 18, an inner jacking block, 19, an outer jacking block, 20, an inner jacking block, 21, jacking screws, 22 and a transverse positioning through hole.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
Fig. 1 to 3 show an embodiment of a process for manufacturing a large-sized coated double-sided seat plate according to the present invention, which comprises the following steps:
(1) Prefabrication of a turning clamp: a turning clamp 2 for finish turning for machining the double-sided seat plate 1 is designed and manufactured in advance;
(2) Designing a blanking chart: according to the design drawing of the double-sided seat board 1, the blanking diagram design of the double-sided seat board 1 is carried out; the double-sided seat board 1 in the blanking diagram is divided into a plurality of sector boards;
(3) Discharging: discharging the sector plates by adopting discharging software according to the production quantity of the double-sided seat plates 1 to form a discharging cutting CAD graph of the double-sided seat plates 1;
(4) Cutting steel plates: a numerical control plasma cutting machine tool is adopted, a steel plate is paved on a workbench of the numerical control plasma cutting machine tool, a discharging cutting CAD graph is led into the numerical control plasma cutting machine tool, and the steel plate is cut into a plurality of sector plates by utilizing a cutting program built in the numerical control plasma cutting machine tool;
(5) Manufacturing a welding groove: welding grooves are formed in splicing parts of two ends of the circumferential direction of the sector plate;
(6) Splicing before welding: assembling a plurality of sector plates into a double-sided seat plate 1 along the circumferential direction, and performing spot welding fixation at the assembled welding groove;
(7) Welding: welding the assembled and spot-welded double-sided seat board 1;
(8) Post-welding treatment: post-welding shaping and stress relief treatment:
(9) Rough turning: rough turning of the double-sided seat boards is carried out by adopting a turning and milling composite numerical control vertical lathe with a C shaft; the rough turning comprises upper and lower plane machining, inner and outer circle machining of the double-sided seat board 1;
(10) And (3) detecting the natural deformation of the rough turning: after the double-sided seat board 1 is roughly turned, loosening the clamping of the double-sided seat board 1, enabling the double-sided seat board 1 to be placed on a workbench of the turning and milling composite numerical control vertical lathe in a natural state, installing a laser ranging probe on the turning and milling composite numerical control vertical lathe, and detecting the deformation of the upper plane of the double-sided seat board 1 in the circumferential direction; note that the zero position is marked before detection;
(11) Programming a turning clamp correction processing program: according to the deformation of the upper plane of the double-sided seat board 1 in the circumferential direction, a positioning plane correction processing program of the turning clamp is compiled; in the positioning plane correction processing program of the turning clamp, correction compensation quantity of the positioning plane of the turning clamp 2 is set; the correction compensation amount is equal to the deformation amount of the upper plane of the double-sided seat board 1 in size and opposite in direction; namely, corresponding to the position of the upper plane bulge of the double-sided seat plate 1, setting a concave correction compensation amount at the corresponding position of the positioning plane of the turning clamp, wherein the magnitude of the concave correction compensation amount is equal to the bulge amount at the corresponding position of the upper plane of the double-sided seat plate 1; corresponding to the concave position of the upper plane of the double-sided seat board 1, setting a convex correction compensation amount at the corresponding position of the positioning plane of the turning clamp 2, wherein the magnitude of the convex correction compensation amount is equal to the concave amount of the corresponding position of the upper plane of the double-sided seat board 1;
(12) And (3) compensating and correcting the turning clamp: installing a prefabricated turning clamp 1 on a turning and milling composite numerical control vertical lathe, and setting a zero position; milling and correcting the positioning plane of the turning clamp 2 through a turning clamp correcting and machining program according to the set correction and compensation quantity of the positioning plane of the turning clamp;
(13) Finish turning: the upper plane of the double-sided seat board 1 is turned over and then arranged downwards, and then is positioned on the positioning plane of the turning clamp 2, and the zero position of the double-sided seat board 1 is aligned with the zero position of the turning clamp 2; then, carrying out lateral multipoint clamping on the double-sided seat board 1, and carrying out plane finish turning after clamping;
(14) Restoration correction of the turning clamp: carrying out machining and flattening on the positioning plane of the turning clamp 2;
(15) Finish turning of the double-sided seat plate: positioning the plane subjected to finish turning on the double-sided seat board 1 on the plane flattened by turning of the turning clamp 2, then carrying out lateral multipoint clamping on the double-sided seat board 1, and carrying out plane adjustment finish turning after clamping;
(16) Processing inner and outer circles of the double-sided seat plate: the end faces of the double-sided seat board 1 are pressed, and the inner circle and the outer circle of the double-sided seat board 1 are respectively finished;
(17) Drilling: drilling a positioning hole 4 and a threaded hole 5 on the plane of the double-sided seat board 1;
(18) And (3) special coating: the finished double-sided seat board 1 is subjected to rust-proof coating.
Preferably, in the coarse turning natural deformation amount detection in the step (10), N detection points are arranged at intervals in the circumferential direction of the upper plane of the double-sided seat board 1, and the natural deformation amount of the double-sided seat board 1 at the positions of the N detection points is measured; meanwhile, in the step (11) of programming the turning fixture correction processing program, according to the natural deformation of the N detection points, a function curve of the natural deformation of any position point in the circumferential direction of the plane on the double-sided seat plate 1 is fitted by adopting a least square method, and then the turning fixture correction processing program is programmed according to the function curve.
Preferably, in the post-welding treatment in the step (8), the post-welding double-sided seat plate 1 is subjected to a stress relief treatment by using a vibration aging device 6.
In this embodiment, the vibration aging device 6 includes a base 9 with an upper flange 7 and a lower flange 8, and a thickened elastic rubber pad 10 disposed on the end surface of the upper flange 7 of the base 9; the double-sided seat board 1 is positioned on the thickened elastic rubber pad 10, a cross 11 is fixed on the double-sided seat board 1 through spot welding, the center of the cross 11 is positioned at the central axis position of the double-sided seat board 1, and a vibration aging instrument 12 is arranged at the central position of the cross 11.
As a further improvement of this embodiment, the vibration aging device 6 is a forced shaping aging composite device, the forced shaping aging composite device includes a plurality of servo electric push rods 13 fixed on the lower flange 8 of the base 9 and arranged at intervals along the circumferential direction, the upper ends of telescopic rods of the servo electric push rods 13 are provided with threaded connecting rods 14, the threaded connecting rods 14 penetrate through holes on the upper flange 7 and the thickened elastic rubber pad 10 and then are connected with threaded holes 5 on the double-sided seat board 1, and the double-sided seat board 1 is tensioned on the thickened elastic rubber pad 10 through the servo electric push rods 13 and forced shaping aging is realized through the vibration aging instrument 12.
As a further improvement of the embodiment, a tension and pressure sensor 15 is arranged between the telescopic rod of the servo electric push rod 13 and the threaded connecting rod 14; the servo electric push rod 13 and the pull pressure sensor 15 are respectively connected with a forced shaping controller.
Preferably, the forced shaping controller is a PLC controller or an MCU controller.
In this embodiment, the method for forced shaping and aging by the forced shaping and aging composite device includes the following steps:
s1, pre-tightening after installation of a double-sided seat board: after the double-sided seat board 1 is mounted on the base 9, the initial pretightening force between the double-sided seat board 1 and the thickened elastic rubber pad 10 is regulated by the servo electric push rods 13, so that the tensioning force values of the tension pressure sensors 15 on the servo electric push rods 13 are consistent;
s2, compounding forced shaping and aging: starting a vibration aging instrument 12 to perform vibration aging stress relief treatment on the double-sided seat board 1, and realizing forced shaping and aging compounding through limiting of each servo electric push rod 13 on the double-sided seat board 1;
8. the process for manufacturing a large-sized special coated double-sided seat plate according to claim 7, wherein the method for forced shaping and aging by the forced shaping and aging composite device further comprises the following steps:
s3, reverse forced shaping: after vibration aging is finished, the forced shaping controller detects the tensioning force value of each tension pressure sensor 15 through the tension pressure sensor 15 on each servo electric push rod 13; and at the position where the tension force is larger than the initial pretightening force, and the deformation amount is predicted to be larger, the stretching amount of the servo electric push rod 13 is adjusted, a reverse forced shaping amount opposite to the deformation direction is applied to the position where the deformation amount is predicted to be large, and the vibration ageing instrument 12 is started to perform vibration ageing treatment again after the adjustment is completed.
As a preferable scheme of the turning clamp in the embodiment, a lateral clamping device 3 for laterally and multipoint clamping the double-sided seat plate 1 is arranged on the turning clamp 1, the lateral clamping device 3 comprises a plurality of lateral floating jacking assemblies 16 which are circumferentially arranged on the turning clamp 2 at intervals, each lateral floating jacking assembly 16 comprises a cylinder 17, an inner jacking block 18 and an outer jacking block 19 which are respectively fixed at two ends of the cylinder 17, an inner jacking head 20 is arranged on the inner jacking block 18, and jacking screws 21 are arranged on the outer jacking block 19; the turning clamp 2 is provided with a transverse positioning through hole 22 at a position below a positioning plane of the turning clamp 2, the cylinder 17 is slidably arranged on the transverse positioning through hole 22, the inner jacking head 20 transversely jacks an inner hole of the double-sided seat plate 1, and the jacking screw 21 transversely jacks an outer circle of the double-sided seat plate 1.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (9)
1. The manufacturing process of the large-scale special-coated double-sided seat board is characterized by comprising the following steps of:
(1) Prefabrication of a turning clamp: designing and manufacturing a turning clamp for finish turning for machining the double-sided seat plate in advance;
(2) Designing a blanking chart: according to the design drawing of the double-sided seat board, the blanking diagram design of the double-sided seat board is carried out; the double-sided seat board in the blanking diagram is divided into a plurality of sector boards;
(3) Discharging: discharging the sector plates by adopting discharging software according to the production quantity of the double-sided seat plates to form a discharging cutting CAD graph of the double-sided seat plates;
(4) Cutting steel plates: a numerical control plasma cutting machine tool is adopted, a steel plate is paved on a workbench of the numerical control plasma cutting machine tool, a discharging cutting CAD graph is led into the numerical control plasma cutting machine tool, and the steel plate is cut into a plurality of sector plates by utilizing a cutting program built in the numerical control plasma cutting machine tool;
(5) Manufacturing a welding groove: welding grooves are formed in splicing parts of two ends of the circumferential direction of the sector plate;
(6) Splicing before welding: assembling a plurality of sector plates into a double-sided seat plate along the circumferential direction, and performing spot welding fixation at the assembled welding groove;
(7) Welding: welding the assembled and spot-welded double-sided seat plates;
(8) Post-welding treatment: post-welding shaping and stress relief treatment:
(9) Rough turning: rough turning of the double-sided seat boards is carried out by adopting a turning and milling composite numerical control vertical lathe with a C shaft; the rough turning comprises upper and lower plane machining and inner and outer circle machining of the double-sided seat board;
(10) And (3) detecting the natural deformation of the rough turning: after the double-sided seat board is roughly turned, loosening the clamping of the double-sided seat board, enabling the double-sided seat board to be placed on a workbench of the turning and milling composite numerical control vertical lathe in a natural state, installing a laser ranging probe on the turning and milling composite numerical control vertical lathe, and detecting the deformation of an upper plane of the double-sided seat board in the circumferential direction; note that the zero position is marked before detection;
(11) Programming a turning clamp correction processing program: according to the deformation of the upper plane of the double-sided seat board in the circumferential direction, a positioning plane correction processing program of the turning clamp is compiled; in the positioning plane correction processing program of the turning clamp, correction compensation quantity of the positioning plane of the turning clamp is set; the correction compensation quantity is equal to the deformation quantity of the upper plane of the double-sided seat board in size and opposite in direction; namely, corresponding to the position of the upper plane bulge of the double-sided seat plate, setting a concave correction compensation amount at the corresponding position of the positioning plane of the turning clamp, wherein the magnitude of the concave correction compensation amount is equal to the bulge amount at the corresponding position of the upper plane of the double-sided seat plate; the method comprises the steps that a bulge correction compensation amount is arranged at a corresponding position of a positioning plane of a turning clamp corresponding to the position of an upper plane recess of a double-sided seat plate, and the size of the bulge correction compensation amount is equal to the recess amount of the corresponding position of the upper plane of the double-sided seat plate;
(12) And (3) compensating and correcting the turning clamp: installing a prefabricated turning clamp on a turning and milling composite numerical control vertical lathe, and setting a zero position; milling and correcting the positioning plane of the turning clamp through a turning clamp correction processing program according to the set correction compensation quantity of the positioning plane of the turning clamp;
(13) Finish turning: the upper plane of the double-sided seat board is turned over and then arranged downwards, and then the double-sided seat board is positioned on the positioning plane of the turning clamp, and the zero position of the double-sided seat board is aligned with the zero position of the turning clamp; then, carrying out lateral multipoint clamping on the double-sided seat board, and carrying out plane finish turning after clamping;
(14) Restoration correction of the turning clamp: turning and flattening the positioning plane of the turning clamp;
(15) Finish turning of the double-sided seat plate: positioning a plane on the double-sided seat plate, which is subjected to finish turning, on a plane flattened by turning a fixture, then carrying out lateral multipoint clamping on the double-sided seat plate, and carrying out plane adjustment finish turning after clamping;
(16) Processing inner and outer circles of the double-sided seat plate: compacting the end surfaces of the double-sided seat boards, and respectively finishing the inner circle and the outer circle of the double-sided seat boards;
(17) Drilling: drilling positioning holes and threaded holes on the plane of the double-sided seat board;
(18) And (3) special coating: and (5) carrying out rust-proof coating on the finished double-sided seat board.
2. The process for manufacturing the large-sized special-coated double-sided seat board according to claim 1, wherein in the step (10) of detecting the natural deformation of the rough turning, N detection points are arranged at intervals in the circumferential direction of the upper plane of the double-sided seat board, and the natural deformation of the double-sided seat board at the N detection points is measured; meanwhile, in the step (11) of programming the turning clamp correction processing program, according to the natural deformation of the N detection points, a function curve of the natural deformation of any position point in the circumferential direction of the plane on the double-sided seat plate is fitted by adopting a least square method, and then the turning clamp correction processing program is programmed according to the function curve.
3. The process for manufacturing a large-sized special coated double-sided seat plate according to claim 1, wherein in the post-welding treatment of the step (8), a vibration aging device is adopted to perform stress relief treatment on the welded double-sided seat plate.
4. The process for manufacturing a large-sized special-coated double-sided seat plate according to claim 3, wherein the vibration aging device comprises a base with an upper flange and a lower flange, and a thickened elastic rubber pad arranged on the end face of the upper flange of the base; the double-sided seat board is positioned on the thickened elastic rubber pad, a cross is fixed on the double-sided seat board through spot welding, the center of the cross is positioned at the center axis of the double-sided seat board, and a vibration aging instrument is arranged at the center of the cross.
5. The manufacturing process of the large special-coated double-sided seat plate according to claim 4, wherein the vibration aging device is a forced plastic aging composite device, the forced plastic aging composite device comprises a plurality of servo electric push rods which are fixed on a lower flange of a base and are circumferentially arranged at intervals, a threaded connecting rod is arranged at the upper end of a telescopic rod of each servo electric push rod, the threaded connecting rod penetrates through a through hole in the upper flange and a thickened elastic rubber pad and then is connected with a threaded hole in the double-sided seat plate, and the double-sided seat plate is tensioned on the thickened elastic rubber pad through the servo electric push rods and is forced to be aged through the vibration aging instrument.
6. The process for manufacturing the large-sized special-coated double-sided seat plate according to claim 5, wherein a tension and pressure sensor is arranged between the telescopic rod of the servo electric push rod and the threaded connecting rod; the servo electric push rod and the pull pressure sensor are respectively connected with the forced shaping controller.
7. The process for manufacturing the large-sized special-coated double-sided seat plate according to claim 6, wherein the method for forced shaping and aging by the forced shaping and aging composite device comprises the following steps:
s1, pre-tightening after installation of a double-sided seat board: after the double-sided seat board is mounted on the base, the initial pretightening force between the double-sided seat board and the thickened elastic rubber pad is regulated by the servo electric push rods, so that the tensioning force values of the tension pressure sensors on the servo electric push rods are consistent;
s2, compounding forced shaping and aging: and starting the vibration aging instrument to perform vibration aging stress relief treatment on the double-sided seat board, and realizing forced shaping and aging compounding through limiting of each servo electric push rod on the double-sided seat board.
8. The process for manufacturing a large-sized special coated double-sided seat plate according to claim 7, wherein the method for forced shaping and aging by the forced shaping and aging composite device further comprises the following steps:
s3, reverse forced shaping: after vibration aging is finished, the forced shaping controller detects the tensioning force value of each tension pressure sensor through the tension pressure sensor on each servo electric push rod; and (3) applying a reverse forced shaping amount opposite to the deformation direction to the position with the expected deformation by adjusting the expansion and contraction amount of the servo electric push rod at the position with the expected deformation amount due to the larger change of the tension force relative to the initial pretightening force, and starting the vibration aging instrument to perform vibration aging treatment again after the adjustment is completed.
9. The manufacturing process of the large special-coated double-sided seat plate according to claim 1, wherein a lateral clamping device for laterally clamping the double-sided seat plate in a multi-point manner is arranged on the vehicle clamp, the lateral clamping device comprises a plurality of lateral floating jacking components which are circumferentially arranged on the vehicle clamp at intervals, each lateral floating jacking component comprises a cylinder, an inner jacking block and an outer jacking block which are respectively fixed at two ends of the cylinder, the inner jacking block is provided with an inner jacking head, and the outer jacking block is provided with jacking screws; the positioning device comprises a turning clamp, a cylinder, an inner jacking head, a jacking screw and a double-sided seat plate, wherein the turning clamp is provided with a transverse positioning through hole at a position below a positioning plane of the turning clamp, the cylinder is arranged on the transverse positioning through hole in a sliding mode, the inner jacking head transversely jacks an inner hole of the double-sided seat plate, and the jacking screw transversely jacks an outer circle of the double-sided seat plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210672982.3A CN115255812B (en) | 2022-06-15 | 2022-06-15 | Manufacturing process of large-sized special-coated double-sided seat board |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210672982.3A CN115255812B (en) | 2022-06-15 | 2022-06-15 | Manufacturing process of large-sized special-coated double-sided seat board |
Publications (2)
Publication Number | Publication Date |
---|---|
CN115255812A CN115255812A (en) | 2022-11-01 |
CN115255812B true CN115255812B (en) | 2023-08-08 |
Family
ID=83760719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210672982.3A Active CN115255812B (en) | 2022-06-15 | 2022-06-15 | Manufacturing process of large-sized special-coated double-sided seat board |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN115255812B (en) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6416285B1 (en) * | 1999-03-24 | 2002-07-09 | Ltg Lufttechnische Komponenten Gmbh | Process for manufacturing an impeller |
CN105798548A (en) * | 2016-04-22 | 2016-07-27 | 江苏恒立液压股份有限公司 | Machining process for mine car font suspension oil cylinder guide sleeve |
CN106425343A (en) * | 2016-11-23 | 2017-02-22 | 浙江东星汽车部件有限公司 | Welded tension pulley machining method |
CN107891289A (en) * | 2017-10-30 | 2018-04-10 | 江阴市恒润重工股份有限公司 | A kind of magnetic-type rough-turning clamp of the black skin positioning of large thin-wall flange |
CN107984249A (en) * | 2017-10-30 | 2018-05-04 | 江阴市恒润环锻有限公司 | The two-sided lathe finish fixture and flange processing technology of a kind of large thin-wall flange |
CN108015569A (en) * | 2017-10-30 | 2018-05-11 | 江阴市恒润环锻有限公司 | A kind of flexible positioning of large thin-wall flange and combined locking formula rough-turning clamp |
CN108620820A (en) * | 2018-04-24 | 2018-10-09 | 哈尔滨汽轮机厂有限责任公司 | In a kind of steam turbine gas port sealing ring anti-deformation processing method is pressed into pressure outer shell |
CN109455266A (en) * | 2018-10-31 | 2019-03-12 | 共享钢构有限责任公司 | The production method of the production method and mast pin shaft support of otic placode support |
CN109513947A (en) * | 2019-01-10 | 2019-03-26 | 江阴普洋法兰有限公司 | A kind of processing technology of the large-sized flange with conical surface sealing structure |
CN110587246A (en) * | 2019-08-27 | 2019-12-20 | 江阴塞特精密工具有限公司 | Manufacturing process of external tooth cylinder type broach finish cutting gear cutter head |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10159776C2 (en) * | 2001-12-05 | 2003-10-23 | Gkn Automotive Gmbh | Production of an inner joint part |
DE102006024715B4 (en) * | 2006-05-26 | 2008-07-24 | Niles-Simmons Industrieanlagen Gmbh | Method for processing the bearing seats of the main and stroke bearings of crankshafts and machine tool for carrying out the method |
-
2022
- 2022-06-15 CN CN202210672982.3A patent/CN115255812B/en active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6416285B1 (en) * | 1999-03-24 | 2002-07-09 | Ltg Lufttechnische Komponenten Gmbh | Process for manufacturing an impeller |
CN105798548A (en) * | 2016-04-22 | 2016-07-27 | 江苏恒立液压股份有限公司 | Machining process for mine car font suspension oil cylinder guide sleeve |
CN106425343A (en) * | 2016-11-23 | 2017-02-22 | 浙江东星汽车部件有限公司 | Welded tension pulley machining method |
CN107891289A (en) * | 2017-10-30 | 2018-04-10 | 江阴市恒润重工股份有限公司 | A kind of magnetic-type rough-turning clamp of the black skin positioning of large thin-wall flange |
CN107984249A (en) * | 2017-10-30 | 2018-05-04 | 江阴市恒润环锻有限公司 | The two-sided lathe finish fixture and flange processing technology of a kind of large thin-wall flange |
CN108015569A (en) * | 2017-10-30 | 2018-05-11 | 江阴市恒润环锻有限公司 | A kind of flexible positioning of large thin-wall flange and combined locking formula rough-turning clamp |
CN108620820A (en) * | 2018-04-24 | 2018-10-09 | 哈尔滨汽轮机厂有限责任公司 | In a kind of steam turbine gas port sealing ring anti-deformation processing method is pressed into pressure outer shell |
CN109455266A (en) * | 2018-10-31 | 2019-03-12 | 共享钢构有限责任公司 | The production method of the production method and mast pin shaft support of otic placode support |
CN109513947A (en) * | 2019-01-10 | 2019-03-26 | 江阴普洋法兰有限公司 | A kind of processing technology of the large-sized flange with conical surface sealing structure |
CN110587246A (en) * | 2019-08-27 | 2019-12-20 | 江阴塞特精密工具有限公司 | Manufacturing process of external tooth cylinder type broach finish cutting gear cutter head |
Also Published As
Publication number | Publication date |
---|---|
CN115255812A (en) | 2022-11-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107962222B (en) | Milling deformation control device and method for conical thin-wall part | |
CN102069228B (en) | Milling processing fixture for cylinder clamp ring of large steam turbine and processing method of clamp ring | |
CN104972333A (en) | Fixture for machining annular parts and method for machining parts through fixture | |
CN115255812B (en) | Manufacturing process of large-sized special-coated double-sided seat board | |
CN110815142A (en) | Automobile door assembling clamp | |
CN211915574U (en) | Auxiliary tool for machining aluminum alloy side wall of rail vehicle | |
CN111331394A (en) | CNC five-axis machining special-shaped part combined clamp and clamping method | |
CN111037070A (en) | Automatic internal stay frock clamp of assembly before special-shaped component welding | |
CN102430847B (en) | Automatic welding fixture for longitudinal seam welding of small-diameter thick-walled tube blanks | |
CN214322644U (en) | Tapping clamp | |
CN110625201A (en) | Shaft gear shaping clamp | |
CN112247618B (en) | Special fixture and method for machining end face of tenon root of blade of aero-engine | |
CN203184775U (en) | Gear hob jig | |
CN117921551B (en) | Shot blasting correction method for controlling deformation of frame parts | |
CN206677591U (en) | A kind of big aluminium block laterally pushed type opens thick fixture | |
CN202356776U (en) | Automatic welding fixture for pipe billet longitudinal seam welding of small-diameter thick-wall pipe | |
CN210436034U (en) | Adjustable suspension bracket mounting bolt tightening clamp | |
CN109202197B (en) | Multi-process linear cutting positioning fixture and method for thin-wall sealing sheet | |
CN216939066U (en) | Frock of U rib and cross slab is assembled to precision | |
CN112975857B (en) | Shock absorber piston valve installation method, device, system and storage medium | |
CN110434786B (en) | Adjustable suspension bracket fixing bolt tightening clamp | |
CN212216645U (en) | Aluminum film plate shaping machine tool for adjusting deformation and correcting template of aluminum template | |
CN109807521A (en) | Robot welding crane rotation platform positioning and clamping tooling | |
CN221269918U (en) | Clamping and positioning device for pipe joint thread turning | |
CN218284113U (en) | Ultrasonic welding fixture for automobile torque angle sensor hand plate |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information |
Inventor after: Xu Kuan Inventor after: Wang Yaqing Inventor after: Ju Yinping Inventor after: Wu You Inventor before: Xu Kuan Inventor before: Ju Yinping Inventor before: Wu You |
|
CB03 | Change of inventor or designer information |