CN109894826B - Method for processing silicon bronze solid retainer of short cylindrical roller bearing without flange on outer ring - Google Patents
Method for processing silicon bronze solid retainer of short cylindrical roller bearing without flange on outer ring Download PDFInfo
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Abstract
A method for processing a silicon bronze solid retainer of a short cylindrical roller bearing without a flange on an outer ring relates to a method for processing a retainer. The invention solves the problems that the surface of the inner diameter and the outer diameter of the retainer is deformed, the assembly rate is low, and the internal defects and the surface defects of the retainer are difficult to control in the existing processing method. Primarily cutting a pipe material; cutting off two end faces of the rear pipe material in the fine turning step I, and performing water immersion ultrasonic: cutting the pipe material subjected to water immersion and ultrasonic treatment into 3-5 solid retainers; carrying out fine turning on the cut entity retainer: marking: drilling and milling a square hole: drawing a square hole: fine grinding of the outer diameter and fine turning of the inner diameter: turning outer steps of the solid retainer: deburring: milling a locking notch: two planes are all turned, chamfered and deburred: polishing: chopping the lock port: primary dynamic balance: carrying out primary dynamic balance on the entity retainer after the locking notch is cut; and (3) fluorescent penetrant inspection: silver plating: secondary dynamic balance: and (6) cleaning and packaging. The method is used for processing the silicon bronze solid retainer of the short cylindrical roller bearing with the outer ring without the flange.
Description
Technical Field
The invention relates to a processing method of a retainer, in particular to a processing method of a silicon bronze solid retainer of a short cylindrical roller bearing without a flange on an outer ring.
Background
The existing processing method of the short cylindrical roller bearing silicon bronze solid retainer without the flange on the outer ring has the following defects:
1. shaping → fine grinding external diameter → fine turning first plane → fine turning second plane → … …, the former process arranges the procedure of "drawing square hole" after the procedure of "grinding external diameter, finish turning internal diameter, step outside the car" and processes, at this moment, the internal diameter and the external diameter of the retainer are in the state of finished product size, because the wall thickness of the retainer is thinner, and the material of silicon bronze is softer, the deformation of the internal diameter and the external diameter of the retainer is found after drawing square hole, thereby leading to the out-of-tolerance of the internal diameter and the external diameter of the retainer, the ovality of the internal diameter and the external diameter is 0.15-0.25 mm, and the repair.
2. As the material of the retainer is QSi3.5-3-1.5, the blank is a tube material, and the retainer finds the internal defects of the material, such as tail shrinkage, air holes, layering or inclusion and the like in the processing process, the product is scrapped when being processed into a semi-finished product, so that a large amount of waste is generated, and the delivery progress of the product is influenced.
3. After the cage with the structure is finally processed, the cage is conveyed to be assembled and sleeved, and the phenomenon that the cage clamps the inner ring exists because the inner ring of the bearing cannot easily pass through a combined body of the roller with the maximum size and the cage after the rolling body is arranged in the pocket is found.
4. The fluorescent penetrant inspection process is arranged before the dynamic balance process, when neglecting that the dynamic unbalance of some holders does not meet the process requirements, the excessive materials need to be removed, and surface cracks of the materials possibly appear and cannot be found, so that unqualified products flow out, and potential quality hazards exist.
The existing processing method has the defects that the surfaces of the inner diameter and the outer diameter of the retainer are deformed, the assembly rate is low, and the internal defects and the surface defects of the retainer are difficult to control.
Disclosure of Invention
The invention provides a method for processing a silicon bronze solid retainer of a short cylindrical roller bearing with an outer ring without a flange, aiming at solving the problems that the surface of the inner diameter and the outer diameter of the retainer is deformed, the assembly rate is low and the internal defects and the surface defects of the retainer are difficult to control in the conventional processing method.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the processing method of the silicon bronze solid retainer of the short cylindrical roller bearing without the flange on the outer ring comprises the following operation steps:
firstly, primarily cutting a pipe material;
the length of each section of pipe material after cutting is the sum of the thicknesses of 3-5 solid retainers;
step two, after the pipe material is cut off, finely turning two end faces and the outer diameter of the solid retainer:
mounting the cut tube material on a numerical control lathe, and finely turning two end faces and the outer diameter of the cut tube material in the first step, wherein the roughness Ra of the end faces and the outer diameter of the tube material is less than 1.6 mu m;
step three, water immersion and ultrasound:
taking the outer diameter of the pipe material of the fine turning in the step two as an incident detection surface, and performing internal defect detection on the solid retainer by adopting water immersion ultrasound;
cutting the pipe material subjected to water immersion and ultrasonic treatment, and cutting into 3-5 solid retainers;
step five, carrying out fine turning on the cut entity retainer:
two end faces, namely a first end face and a second end face, of the fine turning solid retainer, and the inner diameter and the outer diameter of the fine turning solid retainer;
step six, marking:
marking the solid retainer in the fifth step by a pneumatic marking machine;
step seven, drilling and milling a square hole:
installing the solid holder on a numerical control machining center machine tool, firstly drilling a round hole on the solid holder by using a drill bit, and then milling a square hole on the solid holder by using a milling cutter;
step eight, drawing the square hole:
machining a square hole of the solid retainer in a broaching mode;
step nine, fine grinding the outer diameter, and fine turning the inner diameter:
finely grinding the outer diameter of the solid retainer by a grinding machine, and finely turning the inner diameter of the solid retainer by a numerical control lathe, wherein the roughness of the outer diameter of the solid retainer is Ra < 1.25 mu m, and the roughness of the inner diameter of the solid retainer is Ra < 1.25 mu m;
step ten, turning outer steps of the solid retainer:
mounting the solid retainer on a numerical control lathe, and turning outer steps of the solid retainer by the numerical control lathe;
eleven, deburring:
removing burrs at the outer step of the solid retainer and the burrs of the square pocket;
step twelve, milling a locking notch:
milling a solid retainer locking notch;
step thirteen, uniformly turning two planes, chamfering and deburring:
installing the solid retainer on a numerical control lathe, sequentially and uniformly turning a first plane and a second plane of the solid retainer, chamfering the first plane and the second plane of the solid retainer, deburring the chamfered parts of the first plane and the second plane and removing the burr of a lock opening;
fourteen steps of polishing:
polishing the solid retainer by a polishing machine;
step fifteen, the lock notch is chopped:
carrying out chopping and locking on the locking notch of the entity retainer after finishing;
fixing a retainer on a port chopping die, positioning by using a pocket of the retainer, fixing a port chopping punch on a press machine, and pressing the port chopping punch to the position of a milled locking port of the retainer according to the reciprocating linear motion of the press machine so as to form a pocket locking point of the retainer;
sixthly, primary dynamic balance:
carrying out primary dynamic balance on the entity retainer after the locking notch is cut;
seventhly, performing fluorescent penetrant inspection:
performing fluorescent penetrant inspection and acid washing on the entity holder subjected to dynamic balance treatment, and performing final inspection on the entity holder subjected to acid washing;
eighteen, silver plating:
carrying out silver plating treatment on the entity holder after final inspection;
nineteen steps, secondary dynamic balance:
carrying out secondary dynamic balance on the silver-plated solid retainer;
twenty steps of cleaning and packaging:
and cleaning and packaging the entity retainer after the secondary dynamic balance.
In one embodiment, in the step sixteen, a dynamic balance die is adopted for dynamic balance, and the solid retainer is sleeved on an inner diameter clamping tire of the dynamic balance die.
In one embodiment, in the nineteenth step, the secondary dynamic balance is performed by using a dynamic balance mold, and the solid retainer is sleeved on the inner diameter clamping tire of the dynamic balance mold.
In one embodiment, the material of the solid retainer in the seventeenth step is QSi3.5-3-1.5, and when the dynamic unbalance amount exceeds the process requirement, the unbalance amount of the end face of the solid retainer is removed, and the removal depth is less than 0.15 mm.
In one embodiment, when the outer step of the solid retainer is turned in the step ten, a pneumatic clamping mould is adopted to process the outer step of the retainer.
In one embodiment, the pneumatic clamping fixture in the step ten is composed of two parts, namely an expansion sleeve and a pull rod.
In one embodiment, the sleeve material of the pneumatic clamping fixture in the step ten is 65 Mn.
In one embodiment, the number of the tube material cut after water immersion and ultrasonic treatment in the fourth step is four solid holders.
Compared with the prior art, the invention has the following beneficial effects:
the method for processing the silicon bronze solid retainer of the short cylindrical roller bearing without the flange on the outer ring increases a 'water immersion ultrasonic' procedure, takes the outer diameter of the retainer as an incident detection surface, and detects the internal defects of the material of the retainer in advance because the internal defects of the material cannot be detected when the retainer is processed into a semi-finished product, thereby avoiding the batch rejection of the product caused by the internal defects of the material found when the retainer is processed into the semi-finished product;
the processing method of the silicon bronze solid retainer of the short cylindrical roller bearing without the flange on the outer ring increases a 'milling locking notch' process, mills the shape of the locking notch on the outer step of the retainer, and then carries out locking on the rolling body by cutting the locking notch, and the processing principle is that the locking amount of the locking notch of the pocket hole of the retainer is reduced by a material removing method, so that the inner ring of the bearing can pass through a combination body of the roller with the retainer in the largest size easily;
the processing method of the silicon bronze solid retainer of the short cylindrical roller bearing with the outer ring without the flange solves the problem of deformation of the inner and outer diameter surfaces of the retainer, and simultaneously, the inner ring of the bearing can easily pass through a combination of the roller with the largest size and the retainer by changing the processing method of the locking notch of the retainer, so that the fitting rate of products is improved, the internal defects and the surface defects of the material of the retainer are effectively controlled, unqualified products are not easy to flow out, and the processing quality of the products is ensured.
Drawings
FIG. 1 is a front view of a milling and locking die according to one embodiment of the present invention;
FIG. 2 is a left side view of a mill fore shaft mold according to an embodiment of the present invention;
FIG. 3 is a front cross-sectional view of a retainer outer step pneumatic fixture in a sixth embodiment of the present invention;
FIG. 4 is a front cross-sectional view of a dynamic balancing die according to a second embodiment of the present invention;
FIG. 5 is a front view of the silicon bronze solid cage of the outer race non-flanged short cylindrical roller bearing of the present invention.
Detailed Description
The first embodiment is as follows: as shown in fig. 1 to 2 and fig. 5, the method for processing the silicon bronze solid retainer of the short cylindrical roller bearing without the flange on the outer ring according to the embodiment is implemented according to the following steps:
firstly, primarily cutting a pipe material;
the length of each section of pipe material after cutting is the sum of the thicknesses of 3-5 solid retainers;
step two, after the pipe material is cut off, finely turning two end faces and the outer diameter of the solid retainer:
mounting the cut tube material on a numerical control lathe, and finely turning two end faces and the outer diameter of the cut tube material in the first step, wherein the roughness Ra of the end faces and the outer diameter of the tube material is less than 1.6 mu m;
step three, water immersion and ultrasound:
taking the outer diameter of the pipe material of the fine turning in the step two as an incident detection surface, and performing internal defect detection on the solid retainer by adopting water immersion ultrasound;
cutting the pipe material subjected to water immersion and ultrasonic treatment, and cutting into 3-5 solid retainers;
step five, carrying out fine turning on the cut entity retainer:
two end faces, namely a first end face and a second end face, of the fine turning solid retainer, and the inner diameter and the outer diameter of the fine turning solid retainer;
step six, marking:
marking the solid retainer in the fifth step by a pneumatic marking machine;
step seven, drilling and milling a square hole:
installing the solid holder on a numerical control machining center machine tool, firstly drilling a round hole on the solid holder by using a drill bit, and then milling a square hole on the solid holder by using a milling cutter;
step eight, drawing the square hole:
machining a square hole of the solid retainer in a broaching mode;
step nine, fine grinding the outer diameter, and fine turning the inner diameter:
finely grinding the outer diameter of the solid retainer by a grinding machine, and finely turning the inner diameter of the solid retainer by a numerical control lathe, wherein the roughness of the outer diameter of the solid retainer is Ra < 1.25 mu m, and the roughness of the inner diameter of the solid retainer is Ra < 1.25 mu m;
step ten, turning outer steps of the solid retainer:
mounting the solid retainer on a numerical control lathe, and turning outer steps of the solid retainer by the numerical control lathe;
eleven, deburring:
removing burrs at the outer step of the solid retainer and the burrs of the square pocket;
step twelve, milling a locking notch:
milling a solid retainer locking notch;
step thirteen, uniformly turning two planes, chamfering and deburring:
installing the solid retainer on a numerical control lathe, sequentially and uniformly turning a first plane and a second plane of the solid retainer, chamfering the first plane and the second plane of the solid retainer, deburring the chamfered parts of the first plane and the second plane and removing the burr of a lock opening;
fourteen steps of polishing:
polishing the solid retainer by a polishing machine;
step fifteen, the lock notch is chopped:
carrying out chopping and locking on the locking notch of the entity retainer after finishing;
fixing a retainer on a port chopping die, positioning by using a pocket of the retainer, fixing a port chopping punch on a press machine, and pressing the port chopping punch to the position of a milled locking port of the retainer according to the reciprocating linear motion of the press machine so as to form a pocket locking point of the retainer;
sixthly, primary dynamic balance:
carrying out primary dynamic balance on the entity retainer after the locking notch is cut;
seventhly, performing fluorescent penetrant inspection:
performing fluorescent penetrant inspection and acid washing on the entity holder subjected to dynamic balance treatment, and performing final inspection on the entity holder subjected to acid washing;
eighteen, silver plating:
carrying out silver plating treatment on the entity holder after final inspection;
nineteen steps, secondary dynamic balance:
carrying out secondary dynamic balance on the silver-plated solid retainer;
twenty steps of cleaning and packaging:
and cleaning and packaging the entity retainer after the secondary dynamic balance.
The silicon bronze retainer has thinner wall thickness, arranges the square drawing hole process before the processes of fine grinding outer diameter, finish turning inner diameter and step outside the vehicle, aims to remove the deformation of the inner diameter and the outer diameter generated in the square drawing hole process, remove the bulge phenomenon generated by the outer diameter during broaching and simultaneously remove the pocket hole burrs generated in the square drawing hole, thereby improving the processing quality of products.
The improved process adds a 'water immersion ultrasonic' procedure, the outer diameter of the retainer is an incident detection surface, the surface roughness Ra is less than 1.6 mu m, the internal defects of the material of the retainer are detected in advance, the batch scrapping of products caused by the internal defects of the material found when the retainer is processed to a semi-finished product is avoided, and the internal defects of the material cannot be detected when the retainer is processed to the semi-finished product.
In the prior art, a retainer locking notch is formed by adopting a plastic deformation method to lock a rolling body, but the locking amount of the formed retainer locking notch is large, so that the inner ring of a bearing cannot easily pass through a combination of a roller with the largest size and a retainer in an assembling and sleeving process, and the phenomenon that the retainer clamps the inner ring exists. The processing method of the invention adds a 'milling locking notch' procedure, mills the shape of the locking notch on the outer step of the retainer, and then carries out the locking notch locking on the rolling element.
The invention arranges the fluorescent penetrant inspection process after the dynamic balance process to detect the surface defects of the retainer material QSi3.5-3-1.5, and the improved process considers the dynamic balance, and if the dynamic unbalance exceeds the process requirement, the unbalance must be removed from the end face of the retainer, at this time, the surface defects of the material can be exposed, so the fluorescent penetrant inspection process is very necessary after the dynamic balance process.
The retainer material QSi3.5-3-1.5 is relatively soft, particularly, the two end faces of the retainer are easy to cause collision damage in the moving and processing processes, the improved process adds a procedure of uniformly turning the two planes, and the main purpose is to remove the collision damage of the two end faces of the retainer, thereby improving the surface quality of the retainer.
The tail portion of a mandrel of the milling locking notch die is connected with a positioning hole in a milling machine, the die is designed to be used for positioning the inner diameter of the retainer, the inner diameter is a guide surface, the machining precision is high, the retainer is installed on the mandrel of the milling locking notch die, the outer step of the retainer is clamped through a positioning hook, the position of the milling locking notch is determined, the end face of the retainer is pressed through a pressing plate, a nut is screwed for locking and fixing, then the positioning hook is lifted for milling, and a positioning pin on the milling locking notch die is used for fixing the positions of the pressing.
The second embodiment is as follows: as shown in fig. 4, in the sixteenth step of the present embodiment, a dynamic balance mold is used for dynamic balance, and the solid holder is sleeved on the inner diameter clamping tire of the dynamic balance mold. By the operation, the dynamic balance die is of an integral structure, and the accumulated error is small, so that the integral precision of the die is ensured; the inner diameter of the retainer is a guide surface, so that the machining precision is relatively high, and the proper clearance is ensured by matching the finish turning inner diameter process and the size of the positioning surface of the dynamic balance die with turning. Other components and connections are the same as those in the first embodiment.
The third concrete implementation mode: as shown in fig. 2, in the nineteenth step of the present embodiment, the dynamic balance mold is used for the secondary dynamic balance, and the solid holder is sleeved on the inner diameter clamping tire of the dynamic balance mold. By the operation, the dynamic balance die is of an integral structure, and the accumulated error is small, so that the integral precision of the die is ensured; by adopting the retainer inner diameter positioning mode, the machining precision is relatively high because the retainer inner diameter is a guide surface, the obtained dynamic balance data is real and accurate, and the machining level of the whole retainer is improved. Other components and connections are the same as those in the first embodiment.
The fourth concrete implementation mode: in the seventeenth step of the embodiment, the material of the solid holder is qsi3.5-3-1.5, and when the dynamic unbalance exceeds the process requirement, the unbalance of the end face of the solid holder is removed, and the removal depth is less than 0.15 mm. By the operation, the fluorescent penetrant inspection process is arranged after the dynamic balance process, so that the surface defects of the material can be exposed and can be treated in time. Other components and connections are the same as those in the first embodiment.
The fifth concrete implementation mode: as shown in fig. 3, in the tenth step of the present embodiment, when the outer step of the solid holder is turned, a pneumatic clamping mold is used to process the outer step of the holder. By the operation, the solid retainer can be fastened and fixed, and turning is convenient. Other components and connections are the same as those in the first embodiment.
The sixth specific implementation mode: as shown in fig. 3, in the step ten of the present embodiment, the pneumatic clamping jig is composed of two parts, namely an expansion sleeve and a pull rod. The operation is that the expansion sleeve and the inner diameter of the retainer are firstly matched and machined by turning, the pull rod is a tapered pull rod, the expansion sleeve is an expansion sleeve with the same angle, the pull rod penetrates into the expansion sleeve, two conical surfaces with the same angle are matched together, the expansion sleeve is fixed, the two conical surfaces of the pull rod are pulled to be extruded together, the expansion sleeve expands out, so that the inner diameter of the retainer is wrapped by the expansion sleeve, the retainer is fixed, and then turning is carried out. The other components and the connection relationship are the same as those in the fifth embodiment.
The seventh embodiment: as shown in fig. 3, in the step ten of the present embodiment, the material of the expansion sleeve of the pneumatic clamping jig is 65 Mn. By the design, the retainer belongs to a light and thin series product, the expansion sleeve wraps the inner diameter of the retainer completely to avoid clamping deformation, and the expansion sleeve is made of 65Mn and has certain strength and toughness; when the pull rod is pulled, the inner diameters of the expansion sleeve and the retainer are tightly matched without clearance, so that the inner diameter of the retainer and the expansion sleeve cannot move during processing, and the processing quality of a product is favorably ensured. Other components and connection relations are the same as those of the sixth embodiment.
The specific implementation mode is eight: as shown in fig. 5, in the fourth step of the present embodiment, the number of the tube material subjected to water immersion and ultrasonic cutting is four solid holders. By the operation, the water immersion ultrasonic efficiency of the single retainer is lower, so that the water immersion ultrasonic is carried out on the pipe materials with the thicknesses of the plurality of solid retainers simultaneously, and the processing efficiency is improved. Other components and connection relations are the same as those of the sixth embodiment.
Claims (8)
1. A method for processing a silicon bronze solid retainer of a short cylindrical roller bearing without a flange on an outer ring is characterized by comprising the following steps of: the processing method of the silicon bronze solid retainer of the short cylindrical roller bearing without the flange on the outer ring is realized according to the following steps:
firstly, primarily cutting a pipe material;
the length of each section of pipe material after cutting is the sum of the thicknesses of 3-5 solid retainers;
step two, after the pipe material is cut off, finely turning two end faces and the outer diameter of the solid retainer:
mounting the cut tube material on a numerical control lathe, and finely turning two end faces and the outer diameter of the cut tube material in the first step, wherein the roughness Ra of the end faces and the outer diameter of the tube material is less than 1.6 mu m;
step three, water immersion and ultrasound:
taking the outer diameter of the pipe material of the fine turning in the step two as an incident detection surface, and performing internal defect detection on the solid retainer by adopting water immersion ultrasound;
cutting the pipe material subjected to water immersion and ultrasonic treatment, and cutting into 3-5 solid retainers;
step five, carrying out fine turning on the cut entity retainer:
two end faces, namely a first end face and a second end face, of the fine turning solid retainer, and the inner diameter and the outer diameter of the fine turning solid retainer;
step six, marking:
marking the solid retainer in the fifth step by a pneumatic marking machine;
step seven, drilling and milling a square hole:
installing the solid holder on a numerical control machining center machine tool, firstly drilling a round hole on the solid holder by using a drill bit, and then milling a square hole on the solid holder by using a milling cutter;
step eight, drawing the square hole:
machining a square hole of the solid retainer in a broaching mode;
step nine, fine grinding the outer diameter, and fine turning the inner diameter:
finely grinding the outer diameter of the solid retainer by a grinding machine, and finely turning the inner diameter of the solid retainer by a numerical control lathe, wherein the roughness of the outer diameter of the solid retainer is Ra < 1.25 mu m, and the roughness of the inner diameter of the solid retainer is Ra < 1.25 mu m;
step ten, turning outer steps of the solid retainer:
mounting the solid retainer on a numerical control lathe, and turning outer steps of the solid retainer by the numerical control lathe;
eleven, deburring:
removing burrs at the outer step of the solid retainer and the burrs of the square pocket;
step twelve, milling a locking notch:
milling a solid retainer locking notch;
the tail part of a mandrel of the milling locking port die is connected with a positioning hole on a milling machine, the inner diameter of a retainer is used for positioning and is a guide surface, the retainer is arranged on the mandrel of the milling locking port die, the outer step of the retainer is clamped by a positioning hook, the position of a milling locking port is determined, the end surface of the retainer is pressed by a pressing plate, a nut is screwed for locking and fixing, then the positioning hook is lifted for milling, and a positioning pin on the milling locking port die is used for fixing the positions of the pressing plate and the mandrel;
step thirteen, uniformly turning two planes, chamfering and deburring:
installing the solid retainer on a numerical control lathe, sequentially and uniformly turning a first plane and a second plane of the solid retainer, chamfering the first plane and the second plane of the solid retainer, deburring the chamfered parts of the first plane and the second plane and removing the burr of a lock opening;
fourteen steps of polishing:
polishing the solid retainer by a polishing machine;
step fifteen, the lock notch is chopped:
carrying out chopping and locking on the locking notch of the entity retainer after finishing;
fixing a retainer on a port chopping die, positioning by using a pocket of the retainer, fixing a port chopping punch on a press machine, and pressing the port chopping punch to the position of a milled locking port of the retainer according to the reciprocating linear motion of the press machine so as to form a pocket locking point of the retainer;
sixthly, primary dynamic balance:
carrying out primary dynamic balance on the entity retainer after the locking notch is cut;
seventhly, performing fluorescent penetrant inspection:
performing fluorescent penetrant inspection and acid washing on the entity holder subjected to dynamic balance treatment, and performing final inspection on the entity holder subjected to acid washing;
eighteen, silver plating:
carrying out silver plating treatment on the entity holder after final inspection;
nineteen steps, secondary dynamic balance:
carrying out secondary dynamic balance on the silver-plated solid retainer;
twenty steps of cleaning and packaging:
and cleaning and packaging the entity retainer after the secondary dynamic balance.
2. The processing method of the silicon bronze solid retainer of the short cylindrical roller bearing without the rib on the outer ring according to claim 1, characterized in that: in the sixteenth step, a dynamic balance die is adopted for primary dynamic balance, and the solid retainer is sleeved on an inner diameter clamping tire of the dynamic balance die.
3. The processing method of the silicon bronze solid retainer of the short cylindrical roller bearing without the rib on the outer ring according to claim 1, characterized in that: in the nineteenth step, dynamic balance is adopted for secondary dynamic balance, and the solid retainer is sleeved on an inner diameter clamping tire of the dynamic balance mold.
4. The processing method of the silicon bronze solid retainer of the short cylindrical roller bearing without the rib on the outer ring according to claim 1, characterized in that: and seventhly, the material of the solid retainer is QSi3.5-3-1.5, when the dynamic unbalance exceeds the process requirement, the unbalance of the end face of the solid retainer is removed, and the removal depth is less than 0.15 mm.
5. The processing method of the silicon bronze solid retainer of the short cylindrical roller bearing without the rib on the outer ring according to claim 1, characterized in that: and step ten, machining the outer steps of the retainer by adopting a pneumatic clamping mould when the outer steps of the solid retainer are turned.
6. The processing method of the silicon bronze solid retainer of the short cylindrical roller bearing without the rib on the outer ring according to claim 5, characterized in that: in the step ten, the pneumatic clamping mould consists of an expansion sleeve and a pull rod.
7. The processing method of the silicon bronze solid retainer of the short cylindrical roller bearing without the rib on the outer ring according to claim 6, characterized in that: in the step ten, the material of the expansion sleeve of the pneumatic clamping mould is 65 Mn.
8. The processing method of the silicon bronze solid retainer of the outer ring non-flange short cylindrical roller bearing according to claim 1, 2, 3, 4, 5, 6 or 7, characterized by comprising the following steps: in the fourth step, the number of the cut pipe materials subjected to water immersion and ultrasonic treatment is four solid retainers.
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| CN110465817B (en) * | 2019-09-25 | 2021-07-23 | 中国航发哈尔滨轴承有限公司 | Method for processing locking mouth of cage pocket |
| CN110961705B (en) * | 2019-12-25 | 2021-05-25 | 中国航发哈尔滨轴承有限公司 | Milling method for square pocket of short cylindrical roller bearing retainer |
| CN111001991B (en) * | 2019-12-25 | 2021-10-15 | 中国航发哈尔滨轴承有限公司 | Processing method and processing tool for pocket locking claw of cylindrical roller bearing retainer |
| CN113399957B (en) * | 2021-07-29 | 2022-06-10 | 中国航发哈尔滨轴承有限公司 | Processing method of cylindrical roller bearing solid retainer with double flanges on inner ring |
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| DE202007018728U1 (en) * | 2007-02-01 | 2009-05-07 | Gesenkschmiede Schneider Gmbh | journal |
| CN104384853B (en) * | 2014-10-21 | 2016-08-24 | 中航工业哈尔滨轴承有限公司 | A kind of processing method of bronze bearing retainer |
| CN104723038A (en) * | 2015-03-23 | 2015-06-24 | 中航工业哈尔滨轴承有限公司 | Method for machining circular hole alloy steel cage with inner-and-outer double fore shafts |
| CN106944802A (en) * | 2017-05-12 | 2017-07-14 | 中国航发哈尔滨轴承有限公司 | A kind of thin-walled retainer side pockets processing technique |
| CN109500549A (en) * | 2018-12-06 | 2019-03-22 | 中国航发哈尔滨轴承有限公司 | A kind of cylindrical roller bearing without inner ring steel alloy solid cage processing method |
| CN109434391A (en) * | 2018-12-21 | 2019-03-08 | 聊城市中瑞轴承配件股份有限公司 | A kind of processing method of the bearing cage for aero-engine |
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2019
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