CN114669962A - Machining process for inner ring and outer ring of grinding gear of slewing bearing - Google Patents
Machining process for inner ring and outer ring of grinding gear of slewing bearing Download PDFInfo
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- CN114669962A CN114669962A CN202210216777.6A CN202210216777A CN114669962A CN 114669962 A CN114669962 A CN 114669962A CN 202210216777 A CN202210216777 A CN 202210216777A CN 114669962 A CN114669962 A CN 114669962A
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Abstract
The invention discloses a process for machining an inner ring and an outer ring of a grinding tooth of a slewing bearing, which belongs to the technical field of slewing bearing machining, and comprises the following steps: the method comprises the following steps of positioning, preliminary turning and milling, punching processing, raceway/outer ring processing, raceway quenching, plane/inner ring finish turning, processing center drilling, raceway finish turning processing, oil hole drilling and milling, and outer ring processing: the machining process comprises the steps of positioning, primary turning and milling, punching machining, raceway/outer ring machining, raceway quenching, plane top tooth finish turning, tooth manufacturing, plane finish turning, machining center drilling, raceway finish turning machining and tooth grinding.
Description
Technical Field
The invention relates to the technical field of slewing bearing machining, in particular to a machining process for an inner ring and an outer ring of a grinding gear of a slewing bearing.
Background
During the machining process of the slewing bearing, the inner ring and the outer ring of the slewing bearing need to be machined by various precision equipment from rough machining to precision machining when the inner ring and the outer ring of the slewing bearing are machined. Therefore, a machining process for the inner ring and the outer ring of the grinding gear of the slewing bearing is provided.
Disclosure of Invention
The invention aims to provide a process for machining inner and outer rings of grinding teeth of a slewing bearing, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a machining process for inner and outer rings of grinding teeth of a slewing bearing comprises the machining of the inner ring and the machining of the outer ring, and comprises the following steps:
inner ring:
materials: 50Mn
Hardness: 207-262HB
Blank types: ring segment
Blank size: 179*170*28
Outer ring:
materials: 50Mn
Hardness: 207-262HB
Blank types: ring segment
Blank size: 234*283*29
The inner ring processing technology comprises the following steps: positioning, primary turning and milling, punching, processing of a raceway/outer ring, quenching of the raceway, finish turning of a plane/inner ring, drilling of a processing center, finish turning of the raceway, and drilling and milling of oil holes;
The outer ring processing technology comprises the following steps: positioning, primarily turning and milling, punching, processing a roller path/an outer ring, quenching the roller path, finely turning a plane top tooth, manufacturing a tooth, finely turning the plane, drilling a processing center, finely turning the roller path, and grinding the tooth;
the positioning preliminary turn-milling of the inner ring/the outer ring comprises preliminary turn-milling and secondary turn-milling:
preliminary turning and milling: checking whether the external dimension of the blank meets the process requirement before processing;
clamping the inner ring of the workpiece, and correcting the R point to be optimal;
clamping the workpiece to be processed according to the requirement of the figure, and enabling the end face to be exposed to light and leaving the allowance on the other face;
checking whether the sizes of all parts of the workpiece meet the process requirements after the machining is finished;
recording the self-checking card;
and (3) secondary turning and milling: positioning by taking the machined end face as a reference surface, wherein the calibration R point is within 0.10 mm;
clamping the workpiece to be processed according to the requirement of the figure;
checking whether the sizes of all parts of the workpiece meet the process requirements after the machining is finished;
recording the self-checking card;
the inner ring punching processing technology comprises the following steps:
hoisting a workpiece, placing one end face of the workpiece on the top of a processing platform, pressing the workpiece by using a pressing plate, drilling and plugging holes in the workpiece, and boring the holes;
installing the plug inside the plug hole, fitting the non-reference surface to the workbench, making the reference surface upward, drilling a pin bottom hole on the reference surface, reaming a pin hole, and finally equipping a taper pin in the pin hole;
The processing technology of the roller path/outer ring of the inner ring and the outer ring comprises the following steps:
attaching the reference surface of the workpiece to a chuck, fixedly clamping the inner ring of the workpiece by the chuck, and then roughly turning and chamfering the non-reference surface;
when the inner ring is machined, the outer ring is finely turned and chamfered;
and (3) outer ring processing: finely turning and chamfering the inner ring;
roughly turning the roller path and finely turning the sealing groove, and smashing steel seal numbers;
the quenching processing technology of the raceways of the inner ring and the outer ring comprises the following steps:
tightly attaching the reference surface of the workpiece to a workbench, and adjusting the position of the steel seal to a quenching starting point;
quenching the raceway;
detecting hardness and detecting a flaw of a roller path;
tempering, hardness detection and raceway flaw detection;
and (3) carrying out plane/inner ring finish turning on the inner ring:
cleaning the workbench, attaching the non-reference surface to the surface of the workbench, clamping the outer ring, correcting by taking the outer ring as a reference, finely turning the reference surface and chamfering;
finely turning and chamfering the inner ring;
turning over the workpiece, finish turning the non-reference surface and chamfering;
the plane/tooth top finish turning process of the outer ring comprises the following steps:
cleaning the workbench, attaching the non-reference surface to the surface of the workbench, clamping the inner ring, correcting by taking the inner ring as a reference, finely turning the reference surface and chamfering;
finely turning the tooth crest;
finely turning and chamfering the spigot;
the outer ring tooth making process comprises the following steps:
cleaning the workbench, attaching the reference surface of the workpiece to the surface of the workbench, correcting by taking the tooth top ring as a reference, pressing by using a pressing plate, and making teeth;
Detecting the size of a common normal line and the thickness of a fixed rotary tooth, and brushing oil;
the outer ring plane finish turning process comprises the following steps:
cleaning the workbench, attaching the non-reference surface to the surface of the workbench, clamping the inner ring, correcting by taking the inner ring as a reference, finely turning the reference surface and chamfering;
turning over the workpiece, finish turning the non-reference surface and chamfering;
finely turning a wear-resistant platform and chamfering;
the machining center drilling process of the inner ring comprises the following steps:
the non-reference surface of the workpiece is attached to a workbench and is pressed through a tool, and a mounting hole is drilled;
drilling counter bores and chamfering;
drilling oil to block a bottom hole and chamfering;
oil plugging and tapping;
turning over the workpiece, and chamfering by a drilling machine;
the machining center drilling process of the outer ring comprises the following steps:
fitting a non-reference surface of the workpiece to a workbench, matching with a tool to compress the workpiece, drilling an installation bottom hole and chamfering;
tapping the mounting hole;
turning over the workpiece, drilling a mounting hole and chamfering;
tapping the mounting hole;
the finish turning processing technology of the raceway of the inner ring comprises the following steps:
cleaning the workbench, tightly attaching the reference surface to the chuck, clamping the inner ring, and correcting by taking the inner ring as a reference;
finely turning a raceway;
the finish turning processing technology of the raceway of the outer ring comprises the following steps:
cleaning the workbench, tightly attaching the reference surface to the chuck, clamping the outer ring, and correcting by taking the outer ring as a reference;
finely turning a raceway;
finely turning an inner ring of the reference surface;
an oil hole drilling and milling process of the inner ring comprises the following steps:
Cleaning the workbench, attaching the reference surface of the workpiece to the workbench, pressing the reference surface tightly by using a pressing plate, and drilling and milling oil holes;
the outer ring gear grinding process comprises the following steps:
cleaning the workbench, attaching the reference surface of the workpiece to the chuck, correcting by taking the correction line as a reference, pressing a plate by using a pressing plate, and grinding teeth;
and (5) detecting the size of the common normal line and the thickness of the fixed rotary tooth, and brushing oil.
The processing of the raceway/outer ring of the inner ring and the processing of the raceway/inner ring of the outer ring both adopt numerical control vertical lathe processing, and the processing parameters of the raceways are as follows:
directly using a steel ball: phi 9; and (3) DL correction: DL; and LI: 0.5; LII: 2.5; measuring an angle: as40 °; raceway chord length: 5.79.
the outer ring gear manufacturing adopts a high-speed gear hobbing machine, and the gear manufacturing parameters are as follows:
modulus: 2; number of teeth: 113; pressure angle: 20 degrees; the displacement coefficient is as follows: + 0.4333; topping amount: 0; precision: 10; common normal mean length and deviation: 83.71 to 83.86; number of teeth (grooves) crossed: 14; tolerance of length variation of a common normal: 0.1; helix angle: left-handed at 8 degrees; fixing the height of the rotary teeth: 2.26; fixing the thickness and deviation of the rotary teeth: 3.481-3.631; the full tooth height: 4.5.
compared with the prior art, the invention has the beneficial effects that: according to the invention, when the inner ring and the outer ring of the slewing bearing are machined, the inner ring and the outer ring of the slewing bearing are sequentially machined and prepared according to the flow, corresponding technical machining equipment is adopted according to the process of each flow preparation, and the slewing bearing is precisely machined according to the process requirements of the machining drawing, so that the machining of the inner ring and the outer ring of the slewing bearing can meet the process requirements, and the precision and the production efficiency are ensured.
Drawings
FIG. 1 is a block diagram of the inner ring processing technique of the present invention;
FIG. 2 is a block diagram of the outer ring processing technique of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: in order to achieve the purpose, the invention provides the following technical scheme: a machining process for inner and outer rings of grinding teeth of a slewing bearing comprises the machining of the inner ring and the machining of the outer ring, and comprises the following steps:
inner ring:
materials: 50Mn
Hardness: 207-262HB
Blank types: ring segment
Blank size: 179*170*28
Outer ring:
materials: 50Mn
Hardness: 207-262HB
Blank types: ring segment
Blank size: 234*283*29
The inner ring processing technology comprises the following steps: positioning, primary turning and milling, punching, processing of a raceway/outer ring, quenching of the raceway, finish turning of a plane/inner ring, drilling of a processing center, finish turning of the raceway, and drilling and milling of oil holes;
The outer ring processing technology comprises the following steps: positioning, primary turning and milling, punching, processing of a raceway/outer ring, quenching of the raceway, finish turning of plane top teeth, tooth manufacturing, finish turning of a plane, drilling of a processing center, finish turning of the raceway and tooth grinding;
the positioning primary turn-milling of the inner ring/the outer ring comprises primary turn-milling and secondary turn-milling:
preliminary turning and milling: before processing, checking whether the external dimension of the blank meets the process requirement;
clamping the inner ring of the workpiece, and correcting the R point to be optimal;
clamping the workpiece to be processed according to the requirement of the figure, and enabling the end face to be exposed to light and leaving the allowance on the other face;
checking whether the sizes of all parts of the workpiece meet the process requirements after the machining is finished;
recording the self-checking card;
and (3) secondary turning and milling: positioning by taking the machined end face as a reference surface, wherein the calibration R point is within 0.10 mm;
clamping the workpiece to be processed according to the requirement of the figure;
checking whether the sizes of all parts of the workpiece meet the process requirements after the machining is finished;
recording the self-checking card;
the inner ring punching processing technology comprises the following steps:
lifting a workpiece, placing one end face of the workpiece at the top of a processing platform, pressing the workpiece by a pressing plate, drilling and plugging holes on the workpiece, boring the holes, ensuring that the center line of a reference surface is 16.8 +/-0.6, ensuring the position degree of the plugging holes, drilling and plugging bottom holes, wherein the size is phi 12 (0/< -0.1), the diameter of the plugged hollow bored holes is phi 12.2H8 (+ <0.027/0), and the surface roughness of the holes is 1.6;
And (3) turning and blocking: ensuring that the plugging diameter phi is 12.2h7 (0/-0.018), or matching according to the effective actual size of the plugging hole, the surface roughness is 1.6, the length is matched according to the blank size, and tapping an M6 deep 6 pin-pulling hole;
and (3) installing the plug inside the plug hole, enabling the non-reference surface to be attached to the workbench, enabling the reference surface to face upwards, drilling a pin bottom hole on the reference surface, reaming a pin hole, finally arranging a taper pin in the pin hole, enabling the pin hole to be a phi 6 taper pin with the ratio of 1:50, enabling the roughness to be 1.6, enabling the diameter of a distribution ring to be phi 168 +/-0.5, completely knocking the pin into the pin hole, and ensuring that the matching depth of the pin hole meets the requirements of the figure.
The processing technique of the roller path/outer ring of the inner ring and the outer ring ensures that the two ends are slightly higher than the inner ring or the outer ring with the same allowance after the blocking assembly,
the reference surface of the workpiece is attached to a chuck, the chuck fixedly clamps the inner ring of the workpiece, then the non-reference surface is roughly machined and chamfered, the non-reference surface is positioned, the correction R during the machining of the inner ring is within 0.07mm, the non-reference surface is roughly machined, the total height is 29.5 +/-0.2, the surface roughness is 12.5, the inner ring is phi 143 +/-0.2, and the position is chamfered for 45 degrees; the correction R is within 0.10mm during the processing of the outer ring, a non-reference surface is roughly turned, the total height is ensured to be 30.5 +/-0.2, the surface roughness is 12.5, the outer ring is 230.8 +/-0.2, and the position is chamfered for 45 degrees;
When the inner ring is machined, the outer ring is finely turned and chamfered, the outer ring is finely turned, the outer diameter phi 179 (0/-0.2) and the surface roughness of the wrapping surface are ensured to be 3.2, the outer ring is chamfered at 1.5 x 45 degrees, and the surface of the reference surface is ensured to be free of burrs and turned over;
and (3) outer ring processing: finely turning and chamfering the inner ring, and finely turning the inner ring to ensure the inner diameter phi 182.75 (0/-0.2) of the reference surface, the inner diameter phi 183.5 (+ -0.2/+ -0.1) of the non-reference surface, the surface roughness 3.2, the inner chamfer angle 1.5 x 45 degrees, and ensure that the surface of the reference surface has no burrs and is flanged;
roughly turning the roller path and finely turning the sealing groove, and smashing steel seal numbers;
the quenching processing technology of the raceways of the inner ring and the outer ring comprises the following steps:
the workpiece reference surface is attached to a workbench, the position of the steel seal is adjusted to a quenching point, the quenching point of the inner ring is located at the blocking position, and the quenching point of the outer ring is located at the steel seal;
quenching the raceway;
hardness detection and raceway flaw detection are carried out, and cracks are prevented in the raceways;
tempering, detecting hardness, detecting flaws of the roller path, controlling the tempering temperature to be 160-180 degrees, keeping the temperature for 90 minutes, cleaning the surface of a workpiece, and uniformly coating antirust oil, wherein no crack exists in the roller path;
and (3) carrying out plane/inner ring finish turning on the inner ring:
cleaning a workbench, attaching a non-reference surface to the surface of the workbench, clamping an outer ring, correcting by taking the outer ring as a reference, finely turning the reference surface and chamfering, wherein the correction R is 0.06mm, the end face runout is within 0.05mm, finely turning the reference surface, ensuring that the center height of the reference surface is 15 +/-0.15, the surface roughness is 3.2, and the outer ring chamfering angle is 0.5 x 45 degrees;
Finely turning and chamfering the inner ring;
turning over the workpiece, finish turning the non-reference surface and chamfering;
the plane/tooth top finish turning process of the outer ring comprises the following steps:
cleaning a workbench, attaching a non-reference surface to the surface of the workbench, clamping an inner ring, correcting by taking the inner ring as a reference, finely turning the reference surface and chamfering, wherein the correction R is 0.06mm, the end face runout is within 0.05mm, finely turning the reference surface, and ensuring that the center height of the reference surface is 17.5 +/-0.2, the total height is 30.2 +/-0.2, the surface roughness is 3.2, and the outer ring is chamfered at 1.0 x 45 degrees;
finish turning the tooth top to ensure the diameter phi 233.8 (0/-0.1) of the tooth top circle and the surface roughness 3.2;
finish turning and chamfering the spigot, ensuring the size phi 220 (0/-0.1) of the outer spigot, the tooth width 25.7 +/-0.2, the surface roughness 3.2, the spigot chamfer angle 1.0 x 45 degrees, the outer diameter chamfer angle 1.0 x 45 degrees, cleaning the surface of a workpiece, and uniformly coating antirust oil;
the outer ring tooth making process comprises the following steps:
cleaning a workbench, attaching a workpiece reference surface to the surface of the workbench, correcting by taking a tooth top ring as a reference, pressing by using a pressing plate, manufacturing teeth, positioning by taking the reference surface, and ensuring that the correction R is within 0.06mm and the roughness of a tooth surface is 6.3;
detecting the size of a common normal line and the thickness of a fixed rotary tooth, brushing oil, ensuring that the common normal line is 83.71-83.86, the number of cross teeth is 14, the thickness of the fixed rotary tooth is 3.481-3.631, the height of the fixed rotary tooth is 2.26, the surface of a workpiece cannot be collided and scratched, and uniformly coating antirust oil;
The outer ring plane finish turning process comprises the following steps:
cleaning a workbench, attaching a non-reference surface to the surface of the workbench, clamping an inner ring, correcting by taking the inner ring as a reference, finely turning the reference surface and chamfering, finely turning the reference surface, ensuring that the center height of the reference surface is 15 +/-0.15, the surface roughness is 3.2, and the outer ring chamfering is 0.5 x 45 degrees;
turning over the workpiece, finish turning the non-reference surface and chamfering, finish turning the inner ring, and ensuring the size phi 140 (+ -0.14/0) of the inner ring, the surface roughness 3.2 and the chamfering angle 1.0 x 45 degrees of the inner ring;
finely turning a wear-resistant platform and chamfering, finely turning a non-reference surface, ensuring that the total height is 28 +/-0.2, the surface roughness is 3.2, chamfering the inner and outer rings by 1.0 x 45 degrees, cleaning the surface of a workpiece, and uniformly coating antirust oil;
the machining center drilling process of the inner ring comprises the following steps:
the non-reference surface of the workpiece is attached to a workbench and is pressed through a tool, and a mounting hole is drilled;
drilling counter bores and chamfering;
drilling oil to block a bottom hole and chamfering;
oil plugging and tapping;
turning over the workpiece, and chamfering by a drilling machine;
the machining center drilling process of the outer ring comprises the following steps:
fitting a non-reference surface of the workpiece to a workbench, matching with a tool to compress the workpiece, drilling an installation bottom hole and chamfering;
tapping the mounting hole;
turning over the workpiece, drilling a mounting hole and chamfering;
tapping the mounting hole;
the finish turning processing technology of the raceway of the inner ring comprises the following steps:
Cleaning the workbench, tightly attaching the reference surface to the chuck, clamping the inner ring, and correcting by taking the inner ring as a reference;
finely turning a raceway;
the finish turning processing technology of the raceway of the outer ring comprises the following steps:
cleaning the workbench, tightly attaching the reference surface to the chuck, clamping the outer ring, and correcting by taking the outer ring as a reference;
finely turning a raceway;
finely turning an inner ring of the reference surface;
an oil hole drilling and milling process of the inner ring comprises the following steps:
cleaning the workbench, attaching the reference surface of the workpiece to the workbench, pressing the reference surface tightly by using a pressing plate, and drilling and milling oil holes;
the outer ring gear grinding process comprises the following steps:
cleaning the workbench, attaching the reference surface of the workpiece to the chuck, correcting by taking the correction line as a reference, pressing a plate by using a pressing plate, and grinding teeth;
and (5) detecting the size of the common normal line and the thickness of the fixed rotary tooth, and brushing oil.
Further, the raceway/outer ring processing of the inner ring and the raceway/inner ring processing of the outer ring are processed by adopting a numerical control vertical lathe, and the raceway processing parameters are as follows:
directly using a steel ball: phi 9; and (3) DL correction: DL; and LI: 0.5; LII: 2.5; measuring an angle: as40 °; raceway chord length: 5.79.
further, the outer ring gear manufacturing adopts a high-speed gear hobbing machine, and the gear manufacturing parameters are as follows:
modulus: 2; number of teeth: 113; pressure angle: 20 degrees; the displacement coefficient is as follows: + 0.4333; topping amount: 0; precision: 10; common normal mean length and deviation: 83.71 to 83.86; number of teeth (grooves) crossed: 14; tolerance of length variation of a common normal: 0.1; helix angle: left-handed at 8 degrees; fixing the height of the rotary teeth: 2.26; fixing the thickness and deviation of the rotary teeth: 3.481-3.631; the full tooth height: 4.5.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The machining process of the inner ring and the outer ring of the grinding gear of the slewing bearing comprises the machining of the inner ring and the machining of the outer ring and is characterized in that: the processing technology comprises the following steps:
inner ring:
materials: 50Mn
Hardness: 207-262HB
Blank types: ring segment
Blank size: 179*170*28
Outer ring:
materials: 50Mn
Hardness: 207-262HB
Blank types: ring segment
Blank size: 234*283*29
The inner ring processing technology comprises the following steps: positioning, primary turning and milling, punching, processing of a raceway/outer ring, quenching of the raceway, finish turning of a plane/inner ring, drilling of a processing center, finish turning of the raceway, and drilling and milling of oil holes;
the outer ring processing technology comprises the following steps: positioning, primary turning and milling, punching, processing of a raceway/outer ring, quenching of the raceway, finish turning of plane top teeth, tooth manufacturing, finish turning of a plane, drilling of a processing center, finish turning of the raceway and tooth grinding;
the positioning primary turn-milling of the inner ring/the outer ring comprises primary turn-milling and secondary turn-milling:
Preliminary turning and milling: before processing, checking whether the external dimension of the blank meets the process requirement;
clamping the inner ring of the workpiece, and correcting the R point to be optimal;
clamping the workpiece to be processed according to the requirement of the figure, and enabling the end face to be exposed to light and leaving the allowance on the other face;
checking whether the sizes of all parts of the workpiece meet the process requirements after the machining is finished;
recording the self-checking card;
and (3) secondary turning and milling: positioning by taking the machined end face as a reference surface, wherein the calibration R point is within 0.10 mm;
clamping the workpiece to be processed according to the requirement of the figure;
checking whether the sizes of all parts of the workpiece meet the process requirements after the machining is finished;
recording the self-checking card;
the inner ring punching processing technology comprises the following steps:
hoisting a workpiece, placing one end face of the workpiece on the top of a processing platform, pressing the workpiece by using a pressing plate, drilling and plugging holes in the workpiece, and boring the holes;
installing the plug inside the plug hole, fitting the non-reference surface to the workbench, making the reference surface upward, drilling a pin bottom hole on the reference surface, reaming a pin hole, and finally equipping a taper pin in the pin hole;
the processing technology of the raceway/outer ring of the inner ring and the outer ring comprises the following steps:
attaching the reference surface of the workpiece to a chuck, fixedly clamping the inner ring of the workpiece by the chuck, and then roughly turning and chamfering the non-reference surface;
when the inner ring is machined, the outer ring is finely turned and chamfered;
And (3) processing the outer ring: finely turning and chamfering the inner ring;
roughly turning the roller path and finely turning a sealing groove, and smashing steel seal numbers;
the quenching processing technology of the raceways of the inner ring and the outer ring comprises the following steps:
tightly attaching the reference surface of the workpiece to a workbench, and adjusting the position of the steel seal to a quenching starting point;
quenching the raceway;
detecting hardness and detecting a flaw of a roller path;
tempering, hardness detection and raceway flaw detection;
and (3) carrying out plane/inner ring finish turning on the inner ring:
cleaning the workbench, attaching the non-reference surface to the surface of the workbench, clamping the outer ring, correcting by taking the outer ring as a reference, finely turning the reference surface and chamfering;
finely turning and chamfering the inner ring;
turning over the workpiece, finish turning the non-reference surface and chamfering;
the plane/tooth top finish turning process of the outer ring comprises the following steps:
cleaning the workbench, attaching the non-reference surface to the surface of the workbench, clamping the inner ring, correcting by taking the inner ring as a reference, finely turning the reference surface and chamfering;
finely turning the tooth crest;
finely turning and chamfering the spigot;
the outer ring tooth making process comprises the following steps:
cleaning the workbench, attaching the reference surface of the workpiece to the surface of the workbench, correcting by taking the tooth top ring as a reference, pressing by using a pressing plate, and making teeth;
detecting the size of a common normal line and the thickness of a fixed rotary tooth, and brushing oil;
the outer ring plane finish turning process comprises the following steps:
cleaning the workbench, attaching the non-reference surface to the surface of the workbench, clamping the inner ring, correcting by taking the inner ring as a reference, finely turning the reference surface and chamfering;
Turning over the workpiece, finish turning the non-reference surface and chamfering;
finely turning a wear-resistant platform and chamfering;
the machining center drilling process of the inner ring comprises the following steps:
the non-reference surface of the workpiece is attached to a workbench, and is pressed through a tool, and a mounting hole is drilled;
drilling a counter bore and chamfering;
drilling an oil plugging bottom hole and chamfering;
oil plugging and tapping;
turning over the workpiece, and chamfering by a drilling machine;
the machining center drilling process of the outer ring comprises the following steps:
fitting a non-reference surface of the workpiece to a workbench, matching with a tool to compress the workpiece, drilling an installation bottom hole and chamfering;
tapping the mounting hole;
turning over the workpiece, drilling a mounting hole and chamfering;
tapping the mounting hole;
the finish turning processing technology of the raceway of the inner ring comprises the following steps:
cleaning the workbench, tightly attaching the reference surface to the chuck, clamping the inner ring, and correcting by taking the inner ring as a reference;
finely turning a raceway;
the finish turning processing technology of the raceway of the outer ring comprises the following steps:
cleaning the workbench, tightly attaching the reference surface to the chuck, clamping the outer ring, and correcting by taking the outer ring as a reference;
finely turning a raceway;
finely turning an inner ring of the reference surface;
an oil hole drilling and milling process of the inner ring comprises the following steps:
cleaning the workbench, attaching the reference surface of the workpiece to the workbench, pressing the reference surface tightly by using a pressing plate, and drilling and milling oil holes;
the outer ring gear grinding process comprises the following steps:
cleaning the workbench, attaching the reference surface of the workpiece to the chuck, correcting by taking the correction line as a reference, pressing a plate by using a pressing plate, and grinding teeth;
And (5) detecting the size of the common normal line and the thickness of the fixed rotary tooth, and brushing oil.
2. The process for machining the inner ring and the outer ring of the grinding gear of the slewing bearing according to claim 1, wherein the process comprises the following steps: the processing of the raceway/outer ring of the inner ring and the processing of the raceway/inner ring of the outer ring both adopt numerical control vertical lathe processing, and the processing parameters of the raceways are as follows:
directly using a steel ball: phi 9; and (3) DL correction: DL; and LI: 0.5; LII: 2.5; measuring an angle: as40 °; raceway chord length: 5.79.
3. the process for machining the inner ring and the outer ring of the grinding gear of the slewing bearing according to claim 1, wherein the process comprises the following steps: the outer ring gear manufacturing adopts a high-speed gear hobbing machine, and the gear manufacturing parameters are as follows:
modulus: 2; number of teeth: 113; pressure angle: 20 degrees; the displacement coefficient is as follows: + 0.4333; topping amount: 0; precision: 10; common normal mean length and deviation: 83.71 to 83.86; number of teeth (grooves) crossed: 14; tolerance of length variation of a common normal: 0.1; helix angle: left-handed at 8 degrees; fixing the height of the rotary teeth: 2.26; fixing the thickness and deviation of the rotary teeth: 3.481-3.631; the full tooth height: 4.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210216777.6A CN114669962B (en) | 2022-03-07 | 2022-03-07 | Machining process for inner ring and outer ring of slewing bearing grinding teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057266A (en) * | 2014-06-04 | 2014-09-24 | 安徽省宁国顺昌机械有限公司 | Slewing bearing quenching type inner gear ring processing technology |
| CN106514137A (en) * | 2016-09-26 | 2017-03-22 | 安徽远丰回转支承有限责任公司 | Machining process of no-tooth strip blockage rotating support structural part and support |
| CN107199438A (en) * | 2016-03-18 | 2017-09-26 | 徐州万达回转支承有限公司 | The processing technology of WEA12 revolution driving pivoting supports |
| WO2018028168A1 (en) * | 2016-08-12 | 2018-02-15 | 上海电机学院 | Method for processing precision forging of bearing ring |
| CN110900125A (en) * | 2019-11-20 | 2020-03-24 | 马鞍山市博创回转支承有限公司 | Machining method of slewing bearing |
| CN113751971A (en) * | 2021-09-23 | 2021-12-07 | 徐州万达回转支承有限公司 | Machining process of slewing bearing |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057266A (en) * | 2014-06-04 | 2014-09-24 | 安徽省宁国顺昌机械有限公司 | Slewing bearing quenching type inner gear ring processing technology |
| CN107199438A (en) * | 2016-03-18 | 2017-09-26 | 徐州万达回转支承有限公司 | The processing technology of WEA12 revolution driving pivoting supports |
| WO2018028168A1 (en) * | 2016-08-12 | 2018-02-15 | 上海电机学院 | Method for processing precision forging of bearing ring |
| CN106514137A (en) * | 2016-09-26 | 2017-03-22 | 安徽远丰回转支承有限责任公司 | Machining process of no-tooth strip blockage rotating support structural part and support |
| CN110900125A (en) * | 2019-11-20 | 2020-03-24 | 马鞍山市博创回转支承有限公司 | Machining method of slewing bearing |
| CN113751971A (en) * | 2021-09-23 | 2021-12-07 | 徐州万达回转支承有限公司 | Machining process of slewing bearing |
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