CN114473392B - Sliding bearing processing method - Google Patents
Sliding bearing processing method Download PDFInfo
- Publication number
- CN114473392B CN114473392B CN202210237226.8A CN202210237226A CN114473392B CN 114473392 B CN114473392 B CN 114473392B CN 202210237226 A CN202210237226 A CN 202210237226A CN 114473392 B CN114473392 B CN 114473392B
- Authority
- CN
- China
- Prior art keywords
- bearing
- face
- grinding
- small end
- turning
- 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
Images
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
- B23P15/003—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass bearings
Abstract
The invention relates to the technical field of manufacturing and processing of naval vessel superchargers, in particular to a processing method of a sliding bearing, which comprises the steps of respectively drilling, rough turning and heat treatment of parts to form a small end face, a large end face and an outer circle to obtain a bearing blank; milling, fitter and heat treatment are respectively carried out on the small end face, the large end face and the outer circle of the bearing blank to obtain a primary bearing; respectively carrying out semi-finish turning, scribing and bench work treatment on the primary bearing to obtain a secondary bearing; grinding, bench work treatment and grinding are respectively carried out on the secondary bearing to form a primary oil wedge surface, and a final bearing is obtained; and checking the final bearing, finely grinding the oil wedge surface to obtain the sliding bearing, dividing the working procedure of grinding the oil wedge surface into two working procedures of rough grinding and fine grinding, firstly roughly grinding the oil wedge surface, then grinding the small end surface, and finally finely grinding the oil wedge surface.
Description
Technical Field
The invention relates to the technical field of manufacturing and processing of naval vessels superchargers, in particular to a processing method of a sliding bearing.
Background
The sliding bearing is a core component of a supercharger product, a key part is fixedly arranged at the large end of a bearing shell, the part and a pressing end floating sleeve and an annular thrust bearing do relative rotation and sliding motion during working, the part and surrounding parts are assembled and matched with each other with high requirements, particularly, a small end plane is tightly matched with the large end face of the annular thrust bearing and lubricated by an oil wedge, so that the working requirement of high-speed running of a machine is met, the small end face of the part has high dimensional precision and shape and position precision, particularly the requirements on the size, flatness and roughness of the oil wedge, otherwise, the friction is large during working, the working efficiency and the service life of the product are influenced, the matched part is damaged, and accidents are caused. The small end face of the part is a carburized and quenched layer, the hardness is 55-62HRC, the depth of the quenched layer is 0.8mm, and the small end face and the oil wedge surface on the small end face can only be ground and processed due to the high hardness of the carburized layer, and the small end face and the oil wedge surface on the small end face are large in surface and high in requirement and are difficult to reach; the roughness and shape and position precision of the small end face can not meet the design requirements all the time after various debugging and processing, so that a bench worker is required to grind the small end face after fine grinding the small end face, the high point on the end face is ground to be flat so as to ensure the shape and position precision requirement, grinding paste is difficult to clean after grinding the small end face in the oil wedge surface processing of the subsequent working procedure, and the grinding wheel and the workpiece are burnt when the fan-shaped oil wedge surface is ground due to residual grinding paste on the surface.
Disclosure of Invention
The invention aims to provide a processing method of a sliding bearing, which aims to solve the problems that grinding paste is difficult to clean after grinding a small end face, so that a grinding wheel is burnt and a workpiece is burnt when a fan-shaped oil wedge surface is ground.
In order to achieve the above object, the present invention provides a method for processing a sliding bearing, the sliding bearing including a small end face, an outer circle, and a large end face, the small end face being located on one side of the outer circle, the large end face being located on one side of the outer circle away from the small end face;
the processing method of the sliding bearing comprises the following steps:
drilling, rough turning and heat treatment are respectively carried out on the parts to obtain a bearing blank;
milling, fitter and heat treatment are respectively carried out on the small end face, the large end face and the outer circle of the bearing blank to obtain a primary bearing;
semi-finish turning, scribing and bench work treatment are carried out on the primary bearing, so that a secondary bearing is obtained;
grinding, bench work treatment and grinding are respectively carried out on the secondary bearing to form a primary oil wedge surface, and a final bearing is obtained;
and checking the final bearing, and finely grinding the oil wedge surface to obtain the sliding bearing.
The method comprises the following specific steps of respectively carrying out drilling, rough turning and heat treatment on the parts to obtain a bearing blank:
drilling a through hole in the center of the part along the axial direction;
carrying out heat treatment tempering on the drilled part;
clamping the excircle of the part by four claws, aligning and roughly turning the part;
and carrying out heat treatment on the part subjected to rough turning to obtain the bearing blank.
The specific modes of milling, bench work and heat treatment are respectively carried out on the small end face, the large end face and the outer circle of the bearing blank to obtain a primary bearing are as follows:
soft three-jaw clamps the excircle, the small end face is flattened and then the large end face is half finely turned;
soft three-jaw clamps the excircle, the small end face is flat, and the large end face ring groove is half finish turned;
soft three-jaw clamps the excircle, the large end face is flat, and the small end face is half finely turned;
milling the semi-finished bearing blank;
positioning and cutting the bearing blank to form four oil grooves on an inner hole;
milling four ring grooves and chamfering on the large end face of the bearing blank;
removing all burrs and sharp edges on the bearing blanks;
milling four ring grooves on the outer circle;
milling four notches on the small end face;
removing all burrs and sharp edges of the bearing blanks again and cleaning parts;
and carrying out heat treatment on the bearing blank, and then checking to obtain the primary bearing.
The specific mode of respectively carrying out semi-finish turning, scribing and bench work treatment on the primary bearing to obtain a secondary bearing is as follows;
soft three-jaw clamps the excircle, the small end face is flattened, and then semi-finish turning is performed;
aligning a turning tool positioning circle, and finish turning all sharp edges on an upper workpiece;
removing all burrs and flanging on the primary bearing;
soft three-jaw clamps the excircle, and finely turning holes and end faces of all levels;
positioning and clamping an upper turning tool, and finely turning the outer circle and the end face;
scribing the primary bearing, and scribing an alignment center line and an oil groove position line on the large end face;
aligning and marking the primary bearing and an inner hole, and milling three notches for oil return on the large end surface;
and deburring the primary bearing, and performing sharp edge dulling treatment to obtain the secondary bearing.
The secondary bearing is respectively subjected to grinding, bench work treatment and grinding to form a primary oil wedge surface, and the specific mode of obtaining a final bearing is as follows;
soft three-jaw clamps the excircle and grinds the large end face;
grinding the end face of the secondary bearing by using a grinding tool;
grinding the secondary bearing on a grinding tool to grind the outer circle;
aligning the inner hole of the secondary bearing mill;
grinding the small end face by using a plane grinding tool on the secondary bearing;
removing all sharp edges, burrs and flanging of the secondary bearing;
the oil wedge surface grinding tool is arranged on the secondary bearing, and four fan-shaped oil wedge surfaces on the small end surface are roughly ground;
grinding the small end face of the thrust surface of the secondary bearing to obtain a final bearing;
the specific method for obtaining the sliding bearing by checking the final bearing and finely grinding the oil wedge surface is as follows:
detecting the final bearing, judging whether the final bearing is qualified, if so, finely grinding the oil wedge surface to obtain the sliding bearing, and if not, returning to respectively carrying out semi-finish turning, scribing and bench work treatment on the primary bearing to obtain a secondary bearing until the final bearing is qualified.
According to the processing method of the sliding bearing, the small end face, the large end face and the outer circle are formed by respectively carrying out drilling, rough turning and heat treatment on parts, so that a bearing blank is obtained; milling, fitter and heat treatment are respectively carried out on the small end face, the large end face and the outer circle of the bearing blank to obtain a primary bearing; respectively carrying out semi-finish turning, scribing and bench work treatment on the primary bearing to obtain a secondary bearing; grinding, bench work treatment and grinding are respectively carried out on the secondary bearing to form a primary oil wedge surface, and a final bearing is obtained; the final bearing is inspected, the oil wedge surface is finely ground to obtain the sliding bearing, a clamp process is added between the process of milling four annular grooves and chamfering on the large end surface and the process of milling four annular grooves on the outer circle, milling burrs and sharp edges are removed, narrow and small parts inside are cleaned, and the problems of unreliable clamping and positioning and high alignment difficulty in the subsequent process are solved; secondly, the process of grinding the oil wedge surface is divided into two processes of rough grinding and fine grinding, the rough grinding oil wedge surface is firstly carried out, the thrust surface is ground, namely the small end surface, and finally the oil wedge surface is finely ground, so that the problems that grinding paste is difficult to clean after the small end surface is ground, and a grinding wheel is burnt and a workpiece is burnt when the fan-shaped oil wedge surface is ground are solved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a third process of drilling, rough turning and heat treatment of parts to obtain a bearing blank.
Fig. 2 is a schematic structural diagram of a fourth process of drilling, rough turning and heat treatment of the parts to obtain a bearing blank.
Fig. 3 is a schematic structural diagram of a first bearing process obtained by respectively milling, bench working and heat-treating the small end face, the large end face and the outer circle of the bearing blank.
Fig. 4 is a schematic structural diagram of a second bearing process obtained by respectively milling, bench working and heat-treating the small end face, the large end face and the outer circle of the bearing blank.
Fig. 5 is a schematic structural diagram of a third bearing process, in which the small end face, the large end face and the outer circle of the bearing blank are respectively subjected to milling, bench work and heat treatment, so as to obtain a primary bearing.
Fig. 6 is a schematic structural diagram of a fourth bearing process, in which the small end face, the large end face, and the outer circle of the bearing blank are respectively subjected to milling, bench work, and heat treatment, to obtain a primary bearing.
Fig. 7 is a schematic structural diagram of a fifth bearing process, in which the small end face, the large end face and the outer circle of the bearing blank are respectively subjected to milling, bench work and heat treatment, so as to obtain a primary bearing.
Fig. 8 is a schematic structural diagram of a sixth bearing process, in which the small end face, the large end face, and the outer circle of the bearing blank are respectively milled, machined, and heat treated to obtain a primary bearing.
Fig. 9 is a schematic structural diagram of a first bearing step eight, in which the small end face, the large end face, and the outer circumference of the bearing blank are respectively subjected to milling, clinching, and heat treatment.
Fig. 10 is a schematic structural diagram of a step nine of performing milling, bench work and heat treatment on the small end face, the large end face and the outer circle of the bearing blank, respectively, to obtain a bearing.
Fig. 11 is a schematic diagram of a first process of performing half finish turning, scribing and bench work treatment on the primary bearing to obtain a secondary bearing.
Fig. 12 is a schematic diagram of a second process of performing half finish turning, scribing and bench work on the primary bearing to obtain a secondary bearing.
Fig. 13 is a schematic diagram of a fourth process of performing half finish turning, scribing and bench work on the primary bearing to obtain a secondary bearing.
Fig. 14 is a schematic diagram of a fifth step of performing half finish turning, scribing and bench work treatment on the primary bearing to obtain a secondary bearing.
Fig. 15 is a schematic diagram of a seventh construction step of performing half finish turning, scribing and bench work treatment on the primary bearing to obtain a secondary bearing.
Fig. 16 is a schematic structural diagram of a first process for grinding, bench working and lapping the secondary bearing to form a preliminary oil wedge surface, respectively, to obtain a final bearing.
Fig. 17 is a schematic structural diagram of a second process of grinding, bench working and lapping the secondary bearing to form a preliminary oil wedge surface, respectively, to obtain a final bearing.
Fig. 18 is a schematic structural diagram of a third process for grinding, bench working and lapping the secondary bearing to form a preliminary oil wedge surface, respectively, to obtain a final bearing.
Fig. 19 is a schematic structural diagram of a fourth process for grinding, bench working and lapping the secondary bearing to form a preliminary oil wedge surface, respectively, to obtain a final bearing.
Fig. 20 is a schematic structural diagram of a fifth step of grinding, bench working and lapping the secondary bearing to form a preliminary oil wedge surface, respectively, to obtain a final bearing.
Fig. 21 is a schematic view of the sliding bearing structure obtained by inspecting the final bearing and refining the oil wedge surface.
Fig. 22 is a schematic view of a sliding bearing structure through which the present invention passes.
Fig. 23 is a flowchart of a method for processing a sliding bearing according to the present invention.
FIG. 24 is a flow chart of a bearing blank obtained by drilling, rough turning and heat treatment of the parts, respectively.
Fig. 25 is a flow chart of milling, fitter and heat treating the small end face, the large end face and the outer circle of the bearing blank, respectively, to obtain a primary bearing.
Fig. 26 is a flowchart of the secondary bearing obtained by performing half finish turning, scribing and bench work processing on the primary bearing, respectively.
Fig. 27 is a flow chart of the final bearing obtained by grinding, bench work treatment and lapping the secondary bearing, respectively, to form a preliminary oil wedge surface.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
Referring to fig. 1 to 27, the present invention provides a method for processing a sliding bearing, where the sliding bearing includes a small end face, an outer circle, and a large end face, the small end face is located on one side of the outer circle, and the large end face is located on one side of the outer circle away from the small end face;
the processing method of the sliding bearing comprises the following steps:
s1, drilling, rough turning and heat treatment are respectively carried out on the parts to obtain a bearing blank;
the specific mode is as follows:
s11, drilling a through hole in the center of the part along the axial direction;
s12, carrying out heat treatment tempering on the drilled part;
s13, clamping the outer circle of the part by four claws, aligning and roughly turning the part;
s14, carrying out heat treatment on the part subjected to rough turning to obtain the bearing blank.
Specifically, the soft three-jaw clamp is clamped on the outer circle of the part, the circle B is aligned, the runout is not more than 0.03, the small end face of the part is roughly turned, carburization is carried out when the part is subjected to heat treatment, the depth of a carburized layer is 1.1-1.4, gaps are reserved between adjacent parts, so that carburization quality is guaranteed, the same batch of sample rings are treated in the same furnace, and the temperature is 650+/-30 ℃.
S2, milling, fitter and heat treatment are respectively carried out on the small end face, the large end face and the outer circle of the bearing blank to obtain a primary bearing;
the specific mode is as follows:
s21, clamping the outer circle by using soft three claws, and carrying out semi-finish turning on the large end face after the small end face is flattened;
specifically, the outer circle is clamped by the soft three-jaw clamp, the small end face is flattened, the C hole is aligned, the jumping tolerance is 0.05, the size of the circle is 57+/-0.05, and then semi-finish turning is performed.
S22, soft three-jaw clamps the outer circle, the small end face is flat, and the large end face ring groove is half finish turned;
specifically, the outer circle is clamped by the soft three-jaw clamp, the small end face is close to flat, the C hole is aligned, the jumping tolerance is 0.05, the annular groove of the large end face is turned, and an R groove turning tool is used for turning according to the size.
S23, clamping the outer circle by using soft three claws, wherein the large end face is flat, and semi-finish turning the small end face;
s24, milling the semi-finished bearing blank;
specifically, the outer circle is clamped by three claws, the A face and the B circle are aligned, the runout is not more than 0.05, and the bearing blank is milled.
S25, positioning and cutting the bearing blank to form four oil grooves on an inner hole;
specifically, aligning the straight edge of the tool, programming the attention angle when cutting the oil groove, and only one group of holes can be filled in the tool positioning pin.
S26, milling four annular grooves and chamfering on the large end face of the bearing blank;
in particular, the straight edge and the circle of the tool are aligned, the chamfer angle 2.5X45 degrees is 3-M10,
9 chamfer 1.3X45 DEG>
11 chamfer 1.3X45 DEG, milling four ring grooves according to the figure, firstly using + ->
Milling by milling cutter, re-use->
Is back-lighted by a milling cutter.
S27, removing all burrs and sharp edges on the bearing blank;
s28, milling four ring grooves on the outer circle;
s29, milling four notches on the small end face;
s210, removing all burrs and sharp edges of the bearing blank again and cleaning the parts;
specifically, the bearing blank is subjected to deburring and sharp edge chamfering R0.2, parts are cleaned up, iron filings exist at the narrow part inside, gasoline and acetone are used for cleaning all the inner surface and the outer surface, greasy dirt cannot be generated, and cleaning of the narrow part is particularly noted.
S211, performing heat treatment on the bearing blank, and then checking to obtain the primary bearing.
Specifically, heat treatment vacuum quenching hardness HRC59-63, sample rings are treated in the same batch and furnace, and carburized layer depth and hardness of the sample rings are detected.
S3, performing semi-finish turning, scribing and bench work treatment on the primary bearing to obtain a secondary bearing;
the specific mode is as follows:
s31, clamping the outer circle by using soft three claws, enabling the small end surface to be flat, and then semi-finish turning;
specifically, the soft three-jaw clamp is used for clamping the outer circle, the small end face is close to flat, an inner hole is aligned, the jumping tolerance is 0.03, the size is 56.2+/-0.03, then semi-finish turning is performed, and the small end face is processed first
And (5) measuring the hole, and then machining a 15-degree chamfer.
S32, aligning a positioning circle of a turning tool, and finish turning all sharp edges on an upper workpiece;
specifically, the locating circle runout of the alignment turning tool is not more than 0.01, the upper workpiece is finish turned, and all sharp edges are chamfered by 0.3X45 degrees.
S33, removing all burrs and flanging on the primary bearing;
specifically, all burrs and flanging are removed by the primary bearing, except for 4 oil grooves on the small end face, the other sharp edges are chamfered by 0.4, rust is removed, foreign matters are not left on the inner surface and the outer surface of the part, and protective oil is added.
S34, soft three-jaw clamps the outer circle, and fine turning holes and end faces of all levels is performed;
specifically, the soft three-jaw clamp is used for clamping the excircle, aligning the A circle, aligning the B surface, and finely turning holes and end surfaces of all levels, wherein the jumping is not more than 0.02.
S35, positioning and clamping a turning tool, and finely turning the outer circle and the end face;
specifically, the loading tool is positioned, the primary bearing is lightly reversely pulled by a screw, the circle B is aligned, the runout is not more than 0.02, and the excircle and the end face are finely turned.
S36, scribing the primary bearing, and scribing an alignment center line and an oil groove position line on the large end face;
specifically, when the oil milling groove is marked on the large end face, the center line and the oil groove position line for alignment are only allowed to be aligned
And->
The range exists between, the rest of the positions are not scored, note: the holes are in relative positional relationship with the oil grooves, and attention is paid to distinguishing.
S37, aligning and scribing the primary bearing and an inner hole, and milling three notches for oil return on the large end surface;
in particular, processing and use
The rotating speed of the milling cutter is 300r/min, the cutting tool taking amount is not more than 1mm, and the deformation is prevented.
S38, deburring the primary bearing, and performing sharp edge dulling treatment to obtain the secondary bearing.
S4, grinding, bench work treatment and grinding are respectively carried out on the secondary bearing to form a primary oil wedge surface, and a final bearing is obtained;
the specific mode is as follows:
s41, clamping the outer circle by using soft three claws, and grinding the large end face;
specifically, the outer circle is clamped by the soft three-jaw clamp, the inner hole A is aligned, the jump is not more than 0.01, the surface B is aligned, the jump is not more than 0.005, and the large end face is ground
S42, grinding the end face of the secondary bearing on a grinding tool;
specifically, the grinding tool 304M-19 is arranged, the positioning end face runout of the grinding tool is checked by the double-tip jacking, the part is arranged, the end face pressing plate is pressed by using a torque wrench, the wrench torque is 8N.M, and the end face is ground.
S43, the secondary bearing is ground by a grinding tool, and the outer circle is ground;
specifically, the upper grinding tool 304M-19 is tightly propped by a double-tip to check the jump of the positioning end face of the grinding tool, the upper part is aligned, the jump of the large outer circle A is not more than 0.005, the jump of the checking end face B is not more than 0.005, the end face pressing plate is pressed by a torque wrench, the torque of the wrench is 8N.M, and the outer circle is ground.
S44, aligning the inner hole of the secondary bearing mill;
specifically, the three-jaw copper pad wallet excircle, alignment base circle A beats and is not more than 0.005, alignment base surface C beats and is not more than 0.005, and inner hole grinding is performed.
S45, grinding the small end face by using a plane grinding tool on the secondary bearing;
s46, removing all sharp edges, burrs and flanging of the secondary bearing;
specifically, all sharp edges, burrs and flanging are removed, the inside and the outside of the part are cleaned, the cleaning of a narrow part is noted, the damage is prevented, and R0.2 chamfers on 4 oil grooves on the end face and 4 oil grooves on the inner hole are repaired according to the drawing
S47, grinding an oil wedge surface tool on the secondary bearing, and roughly grinding four fan-shaped oil wedge surfaces on the small end surface;
specifically, cleaning the positioning surface and the inner hole of the secondary bearing by using cleaning oil, using a rough grinding scribing template 304-QG054 to scratch an oil wedge surface tail line tolerance allowed area by using a paint pen, then using a torque wrench to compress a screw by using the oil wedge surface grinding tool on the secondary bearing, roughly grinding four fan-shaped oil wedge surfaces on the small end surface by using the torque wrench with the torque of 2 N.M of the wrench and the allowance, wherein the size of 0.065+/-0.003 is milled according to scribing 0.052-0.062, the diameter of a grinding wheel is not more than 180mm, the width of the grinding wheel is 23mm, and the granularity of 80-90 is checked (the inspection is based on the scribing tolerance area, thereby being convenient for the operation of workers and the size detection of inspection personnel and improving the production efficiency).
S48, grinding the small end face of the thrust surface of the secondary bearing to obtain a final bearing;
specifically, the small end face of the thrust surface is ground to Ra0.2, the size is ensured to be 34.5-0.01/-0.03, the small end face of the thrust surface is subjected to residual grinding paste polishing treatment, and the size is not required to be changed.
S5, checking the final bearing, and finely grinding the oil wedge surface to obtain the sliding bearing.
The specific mode is as follows:
detecting the final bearing, judging whether the final bearing is qualified, if so, finely grinding the oil wedge surface to obtain the sliding bearing, and if not, returning to respectively carrying out semi-finish turning, scribing and bench work treatment on the primary bearing to obtain a secondary bearing until the final bearing is qualified.
The above disclosure is only a preferred embodiment of the present invention, and it should be understood that the scope of the invention is not limited thereto, and those skilled in the art will understand that all or part of the above-described embodiments may be implemented and equivalents thereof may be modified according to the scope of the appended claims.
Claims (5)
1. A method for processing a sliding bearing is characterized in that,
the sliding bearing comprises a small end face, an outer circle and a large end face, wherein the small end face is positioned on one side of the outer circle, and the large end face is positioned on one side of the outer circle away from the small end face;
the processing method of the sliding bearing comprises the following steps:
drilling, rough turning and heat treatment are respectively carried out on the parts to obtain bearing blanks;
milling, fitter and heat treatment are respectively carried out on the small end face, the large end face and the outer circle of the bearing blank to obtain a primary bearing;
semi-finish turning, scribing and bench work treatment are carried out on the primary bearing, so that a secondary bearing is obtained;
grinding, bench work treatment and grinding are respectively carried out on the secondary bearing to form a primary oil wedge surface, and a final bearing is obtained;
checking the final bearing, and finely grinding the oil wedge surface to obtain the sliding bearing;
the specific modes of milling, fitter and heat treatment are respectively carried out on the small end face, the large end face and the outer circle of the bearing blank to obtain a primary bearing are as follows:
the small end face is flattened and then semi-finish turning is performed on the large end face by the soft three-jaw clamp, particularly the small end face is flattened and aligned with a C hole, the jumping tolerance is 0.05, the turning size is 57+/-0.05, and then semi-finish turning is performed;
the small end face is close to flat, the large end face annular groove is semi-finely turned, the small end face is close to flat, a C hole is aligned, the jumping tolerance is 0.05, the large end face annular groove is turned, and an R groove turning cutter is used for turning according to the size;
the three claws clamp the outer circle, the large end face is flat, and the small end face is half finely turned;
milling the semi-finish turning bearing blank, namely clamping the excircle by three claws, aligning the A surface and the B circle, and milling the bearing blank, wherein the runout is not more than 0.05;
positioning and cutting the bearing blank to form four oil grooves on an inner hole;
milling four annular grooves and chamfers on the large end face of the bearing blank, namely aligning a straight edge and a circle of a tool, chamfering 2.5X45 degrees of 3-M10, chamfering 1.3X45 degrees of 3-phi 9, chamfering 1.3X45 degrees of 6-phi 11, milling the four annular grooves, milling by a milling cutter of phi 10, and then back chipping by a milling cutter of phi 8;
removing all burrs and sharp edges on the bearing blank;
milling four ring grooves on the outer circle;
milling four notches on the small end face;
removing all burrs and sharp edges of the bearing blank again and cleaning the parts;
and carrying out heat treatment on the bearing blank, and then checking to obtain the primary bearing.
2. A method for manufacturing a sliding bearing according to claim 1, characterized in that,
the parts are drilled, roughly turned and heat treated respectively, and the specific mode for obtaining the bearing blank is as follows:
drilling a through hole in the center of the part along the axial direction;
carrying out heat treatment tempering on the drilled part;
clamping the excircle of the part by four claws, aligning and roughly turning the part;
and carrying out heat treatment on the part subjected to rough turning to obtain the bearing blank.
3. A method for manufacturing a sliding bearing according to claim 1, characterized in that,
the specific mode of carrying out semi-finish turning, scribing and bench work treatment on the primary bearing to obtain the secondary bearing is as follows:
soft three-jaw clamps the excircle, the small end face is flattened, and then semi-finish turning is performed;
aligning a turning tool positioning circle, and finish turning all sharp edges on an upper workpiece;
removing all burrs and flanging on the primary bearing;
soft three-jaw clamps the excircle, and finely turning holes and end faces of all levels;
positioning and clamping an upper turning tool, and finely turning the outer circle and the end face;
scribing the primary bearing, and scribing an alignment center line and an oil groove position line on the large end face;
aligning and marking the primary bearing and an inner hole, and milling three notches for oil return on the large end surface;
and deburring the primary bearing, and performing sharp edge dulling treatment to obtain the secondary bearing.
4. A method for manufacturing a sliding bearing according to claim 1, characterized in that,
the secondary bearing is respectively subjected to grinding, bench work treatment and grinding to form a primary oil wedge surface, and the specific mode of obtaining a final bearing is as follows;
soft three-jaw clamps the excircle and grinds the large end face;
grinding the end face of the secondary bearing by using a grinding tool;
grinding the secondary bearing on a grinding tool to grind the outer circle;
aligning the inner hole of the secondary bearing mill;
grinding the small end face by using a plane grinding tool on the secondary bearing;
removing all sharp edges, burrs and flanging of the secondary bearing;
the oil wedge surface grinding tool is arranged on the secondary bearing, and four fan-shaped oil wedge surfaces on the small end surface are roughly ground;
and grinding the secondary bearing to obtain a thrust surface, namely the small end surface, to obtain the final bearing.
5. A method for manufacturing a sliding bearing according to claim 1, characterized in that,
and the final bearing is inspected, the oil wedge surface is finely ground, and the sliding bearing is obtained by the following specific steps:
detecting the final bearing, judging whether the final bearing is qualified, if so, finely grinding the oil wedge surface to obtain the sliding bearing, and if not, returning to respectively carrying out semi-finish turning, scribing and bench work treatment on the primary bearing to obtain a secondary bearing until the final bearing is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210237226.8A CN114473392B (en) | 2022-03-11 | 2022-03-11 | Sliding bearing processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210237226.8A CN114473392B (en) | 2022-03-11 | 2022-03-11 | Sliding bearing processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114473392A CN114473392A (en) | 2022-05-13 |
| CN114473392B true CN114473392B (en) | 2023-06-23 |
Family
ID=81486127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210237226.8A Active CN114473392B (en) | 2022-03-11 | 2022-03-11 | Sliding bearing processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114473392B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116673705B (en) * | 2023-08-03 | 2023-10-13 | 东方电气集团东方汽轮机有限公司 | Manufacturing method of high-precision sleeve part |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4089095A (en) * | 1977-01-11 | 1978-05-16 | Textron Inc. | Seal means for a self-aligning bearing and method of making the same |
| CN106346206A (en) * | 2016-11-15 | 2017-01-25 | 陕西高华知本化工科技有限公司 | Processing method of eccentric bushing of sliding bearing |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6146471A (en) * | 1999-04-08 | 2000-11-14 | Roller Bearing Company Of America | Spherical plain bearing and method of manufacturing thereof |
| EP2188540B1 (en) * | 2007-08-24 | 2019-06-26 | GGB, Inc. | Metal-backed plain bearing |
| CA2865794A1 (en) * | 2013-10-02 | 2015-04-02 | Black Tip Services, LLC | A method for making a bearing component, a bearing component, a down hole device and a down hole bearing assembly |
| CN105499938A (en) * | 2016-02-01 | 2016-04-20 | 余晓娜 | Sliding bearing machining process |
| CN107160114B (en) * | 2017-07-14 | 2019-05-10 | 重庆江增船舶重工有限公司 | The processing method of floating disc |
-
2022
- 2022-03-11 CN CN202210237226.8A patent/CN114473392B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4089095A (en) * | 1977-01-11 | 1978-05-16 | Textron Inc. | Seal means for a self-aligning bearing and method of making the same |
| CN106346206A (en) * | 2016-11-15 | 2017-01-25 | 陕西高华知本化工科技有限公司 | Processing method of eccentric bushing of sliding bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114473392A (en) | 2022-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106493523B (en) | A kind of processing technology of steel alloy divergence type solid cage | |
| US20080102736A1 (en) | Method For Machining Rotary Parts | |
| CN106246705A (en) | A kind of electric motor of automobile rotating shaft and processing method thereof | |
| CN107160114A (en) | The processing method of floating disc | |
| CN114473392B (en) | Sliding bearing processing method | |
| CN104057266A (en) | Slewing bearing quenching type inner gear ring processing technology | |
| CN104227345A (en) | Processing method for high-precision thin step shaft and grinding chuck for processing method | |
| CN109732293B (en) | Thin-wall separation type solid retainer processing method | |
| CN107322239B (en) | A kind of processing method of one-way clutch outer ring | |
| CN111468905A (en) | Tooth broaching process for thin-wall internal spline shaft | |
| CN105750563A (en) | Method for enhancing hard turning circularity of thin-wall annular parts | |
| CN110253231B (en) | Machining method for removing burrs of solid retainer | |
| CN111992999A (en) | Automobile precision stepped shaft cylindrical grinding process | |
| CN110524194B (en) | Machining method of thin-sheet annular part | |
| CN115922242A (en) | Method for processing inner ring and outer ring of self-aligning roller bearing | |
| CN108443306A (en) | A kind of electric motor of automobile shaft and its processing method | |
| CN104191180A (en) | Method for machining inner grooves of coupled bearing spindles | |
| CN112548488B (en) | High-precision machining method for large-size annular groove | |
| CN112692522A (en) | Deep groove ball inner ring ball mounting gap processing method | |
| CN110125630B (en) | Method for machining pivot holes of runner hub blades of Kaplan turbine | |
| CN111993000A (en) | Machining method for symmetrical stepped gear shaft of automobile | |
| CN111546009A (en) | Manufacturing method of mining machinery axle | |
| CN109604964A (en) | A kind of processing method of big torque actuated axis | |
| CN112091629B (en) | Machining method of thin-wall gear ring with key groove | |
| CN113814667B (en) | Processing method of triangular shaft sleeve |
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 |