CN106825775B - Few teeth difference precise planetary reducer interior bracing technique - Google Patents
Few teeth difference precise planetary reducer interior bracing technique Download PDFInfo
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- CN106825775B CN106825775B CN201710039674.6A CN201710039674A CN106825775B CN 106825775 B CN106825775 B CN 106825775B CN 201710039674 A CN201710039674 A CN 201710039674A CN 106825775 B CN106825775 B CN 106825775B
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- Prior art keywords
- raceway
- circular arc
- slot
- face
- outer circle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F17/00—Special methods or machines for making gear teeth, not covered by the preceding groups
-
- 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
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
Abstract
The invention discloses a kind of few teeth difference precise planetary reducer interior bracing technique, which is integrated with spring bearing outer rollaway nest, and contains the prominent features that slot is Hardened gear face with circular arc.Step:A, selection and rough forging;B, it is heat-treated;C, rough turn outer circle, end face process endoporus, raceway on the basis of outer circle;D, Gear Shaping circular arc contains slot;E, raceway, circular arc contain slot and harden processing;F, inside and outside circle and end face are roughly ground, circular arc is roughly ground on the basis of raceway and contains slot;G, it is heat-treated;H, fine cylindrical, end face;I, raceway is refined, circular arc contains slot.Raceway of the present invention contains slot with circular arc to be processed with same benchmark, be ensure that machining accuracy, is reduced installation error, meet the high-precision requirement of retarder;Raceway, circular arc contain slot and carry out processing of hardening, and improve the precision stability and bearing capacity of precision speed reduction device.
Description
Technical field
The invention belongs to technical fields of mechanical processing, are related to a kind of few teeth difference precise planetary reducer interior bracing work
Skill.
Background technology
Few teeth difference precise planetary reducer has big high transmission accuracy, transmission ratio, compact-sized, large carrying capacity and transmission
Efficient equal prominent advantage, is widely used in the industrial circles such as robot, mine, metallurgy, chemical industry, weaving, national defense industry.Make
For precision speed reduction device, the precision stability of driving error and complete machine is the important indicator for weighing precision speed reduction device.Internal gear is
One of such retarder key components and parts, first it the crucial Meshing Pair of precision speed reduction device is collectively formed with needle roller, cycloid gear,
Secondly, it plays a supporting role to output mechanism.Realize the high transmission accuracy of retarder, the requirement on machining accuracy pole of internal gear
It is high;Meanwhile being the retentivity and service life of realization retarder transmission accuracy, need internal gear to have good wearability, this
Outside, Hardened gear face circular arc contains the bearing capacity that slot is conducive to improve precision speed reduction device.Application No. is 200510057463.2 pairs
Disc cycloid cam planet driving device;Application No. is the enclosed type cycloid precision speed reduction device of 201420140453.x, two pieces applications
Precision speed reduction device internal gear in patent is all made of raceway integration mode, and retarder spring bearing is integrated in internal gear.
The internal gear of this kind of structure is with common cycloid precision speed reduction device, RV retarders the difference is that eating outside support bearing
Raceway is integrated on internal gear, and structure is compacter;Input and output end plate, using the roller bearing supports that interlock, is improved with internal gear
Bearing capacity;Bearing external roller path is integrated in one with internal gear, reduces error distribution link, is conducive to improve retarder
Transmission accuracy, and reduce the economic accuracy of machining of key components and parts;Arc groove is Hardened gear face, improves wearability in use,
Keep the precision stability of retarder more prominent.Current general cycloid precise planetary reducer internal gear is the soft flank of tooth, and is exported
Mechanism bearing support zone hardness is general relatively low, but since the economic accuracy of machining of internal gear is very high, domestic not yet to solve less
The manufacturing technology problem of the mass high-efficiency high-accuracy of tooth difference precise planetary reducer internal gear, and for containing with Hardened gear face
Slot and be integrated with this design feature of output mechanism spring bearing outer rollaway nest internal gear mass high-efficiency high-accuracy manufacture work
Skill there is no achievement in research to report.This patent proposes a kind of lacking with the outstanding features such as bearing capacity is high, precision stability is good
The processing technology of tooth difference precise planetary reducer internal gear, the technique can effectively be realized this with Hardened gear face containing slot and integrated
The high-precision processing of the internal gear of the structure feature of spring bearing outer rollaway nest.
Invention content
In view of this, the purpose of the present invention is to provide a kind of few teeth difference precise planetary reducer interior bracing technique,
The processing that can effectively solve that there is Hardened gear face circular arc to contain slot and the internal gear parts of integrated spring bearing outer rollaway nest feature is asked
Topic, warp of the performance indicators such as the bearing capacity that can meet few teeth difference precise planetary reducer is high, precision stability is good to internal gear
The requirement for machining accuracy of helping.
In order to achieve the above objectives, the present invention provides the following technical solutions:
Few teeth difference precise planetary reducer interior bracing technique, it is characterised in that:Include the following steps:
A, selection and rough forging select suitable material according to design of part feature and size;
B, heat treatment, eliminate forging residual stress;
C, rough turn outer circle and end face;On the basis of outer circle after rough turn, rough turn endoporus and raceway endoporus stay more than technique
Amount ensures the concentricity of raceway and outer circle;
D, on the basis of raceway, slot gear shaping is contained to circular arc, stays process allowance;
E, the surface hardening for containing slot to raceway and circular arc is handled, and is ensured depth of hardening zone 1.1-1.4mm, is quenched table
Surface hardness HRC58-62, core hardness HRC28-32;
F, raceway, outer circle and end face are roughly ground, fine grinding surplus is stayed, then using the raceway after corase grinding as base
Standard, corase grinding circular arc contain slot;
G, it is heat-treated, eliminates surface stress, prevent stress concentration;
H, on the basis of raceway, grinding outer circle, both ends of the surface to size ensure size, tolerance to drawing requirement;
I, on the basis of outer circle and end face, accurate grinding processes raceway;Contained with same benchmark grinding circular arc
Slot ensures raceway circularity and size, ensures the position degree of raceway and mounting groove.
Further, in step, selection is low-carbon high duty alloy Steel material, in step E, to raceway and circular arc packet
The processing of tank carburizing and quenching, carburized (case) depth 1.1-1.4mm.
Further, in step, selection is high intensity mild steel material, in step E, contains slot office to raceway and circular arc
Portion's high-frequency quenching processing.
Further, it in step G, is heat-treated as lonneal.
Further, the heat treatment in step B is isothermal normalizing, and isothermal normalizing hardness is H B160-190.
The beneficial effects of the present invention are:
1, the processing technology for proposing raceway integral type internal gear solves the blank without ripe mass processing technology;
2, it improves raceway and circular arc contains rooved face hardness, to put forward the bearing capacity of precision speed reduction device, and improve
The precision stability of retarder;
3, circular arc is contained slot and raceway and is processed with same benchmark, ensure that machining accuracy, ensure that internal gear and Cycloidal Wheel,
Concentricity of planet carrier etc. coordinates precision;
4, reduce parts number, it is cost-effective, and the amount of size of dimensional chain for assembly is reduced, to reduce complete machine
Cost.
Description of the drawings
In order to keep the purpose of the present invention, technical solution and advantageous effect clearer, the present invention provides following attached drawing and carries out
Explanation:
Fig. 1 is the structural schematic diagram of few teeth difference precise planetary reducer interior bracing technique of the present invention;
Fig. 2 is the front view of Fig. 1;
Fig. 3 be Fig. 2 along the sectional view of A-A.
Specific implementation mode
Below in conjunction with attached drawing, the preferred embodiment of the present invention is described in detail.
Embodiment 1,
1) it forges:The selection of material is low-carbon superior alloy steel, and blank is forged by the way of die forging;
2) isothermal normalizing, isothermal normalizing hardness are HB160-190;
3) rough turn:Process allowance 0.5mm is stayed in rough turn blank outer circle, flat left and right end face, ensures processing dimension;It is with outer circle
Positioning datum, rough turn endoporus and raceway endoporus control the concentricity between each endoporus, the verticality with end face;
4) gear shaping:On the basis of raceway 5, slot 7, made allowance are contained using special plunge tooling internal gear circular arc
0.5mm;
5) it is heat-treated:7 carburizing and quenching of slot, carburized (case) depth 1-1.2mm, table are contained to raceway 1,5 and internal gear circular arc
Surface hardness HRC58-62 carries out the Anti-seeping technology of rest part;
6) it roughly grinds:On the basis of A, corase grinding right side 6, outer circle 4 and raceway 5 ensure outer circle 4 and raceway 5
Concentricity, the verticality of end face 6 and raceway 5;It turns around, on the basis of outer circle 4, grinding outer circle 3, end face 2 and bearing
Raceway 1 ensures geometric tolerance;
7) tooth is roughly ground:On the basis of raceway 5, corase grinding circular arc contains slot 6;
8) lonneal eliminates surface stress;
9) it refines:On the basis of raceway, fine grinding right side 6 and outer circle 3, morpheme require to reach requirement and taken out
Inspection;With same benchmark, reference plane A, B and end face 2 are refined, ensures that size internal gear width, excircle dimension reach requirement.
10) fine grinding raceway contains slot with circular arc:On the basis of A, B, clamping grinding bearing raceway endoporus and end face ensure axis
Hold raceway concentricity and size;With same benchmark, grinding circular arc contains slot.
11) it uses continuous ultrasonic cleaning machine to clean, then examines, packs, storage.
Embodiment 2,
1) it forges:The selection of material is high intensity mild steel material, and blank is forged by the way of die forging;
2) isothermal normalizing, isothermal normalizing hardness are HB160-190;
3) rough turn:Process allowance 0.5mm is stayed in rough turn blank outer circle, flat left and right end face, ensures processing dimension;It is with outer circle
Positioning datum, rough turn endoporus and raceway endoporus control the concentricity between each endoporus, the verticality with end face;
4) gear shaping:On the basis of raceway 5, slot 7, made allowance 0.5mm are contained using special plunge tooling internal gear circular arc;
5) it is heat-treated:7 local high-frequency quenching treatment of slot is contained to raceway 1,5 and internal gear circular arc;
6) it roughly grinds:On the basis of A, corase grinding right side 6, outer circle 4 and raceway 5 ensure outer circle 4 and raceway 5
Concentricity, the verticality of end face 6 and raceway 5;It turns around, on the basis of outer circle 4, grinding outer circle 3, end face 2 and bearing
Raceway 1 ensures geometric tolerance;
7) tooth is roughly ground:On the basis of raceway 5, corase grinding circular arc contains slot 6;
8) lonneal eliminates surface stress;
9) it refines:On the basis of raceway, fine grinding right side 6 and outer circle 3, morpheme require to reach requirement and taken out
Inspection;With same benchmark, reference plane A, B and end face 2 are refined, ensures that size internal gear width, excircle dimension reach requirement.
10) fine grinding raceway contains slot with circular arc:On the basis of A, B, clamping grinding bearing raceway endoporus and end face ensure axis
Hold raceway concentricity and size;With same benchmark, grinding circular arc contains slot.
11) it uses continuous ultrasonic cleaning machine to clean, then examines, packs, storage.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (5)
1. few teeth difference precise planetary reducer interior bracing technique, it is characterised in that:Include the following steps:
A, selection and rough forging select suitable material according to design of part feature and size;
B, heat treatment, eliminate forging residual stress;
C, rough turn outer circle and end face;On the basis of outer circle after rough turn, rough turn endoporus and raceway endoporus stay process allowance,
Ensure the concentricity of raceway and outer circle;
D, on the basis of raceway, slot gear shaping is contained to circular arc, stays process allowance;
E, the surface hardening for containing slot to raceway and circular arc is handled, and ensures that depth of hardening zone 1.1-1.4mm, hardened face are hard
Spend HRC58-62, core hardness HRC28-32;
F, raceway, outer circle and end face are roughly ground, stays fine grinding surplus, then on the basis of the raceway after corase grinding, slightly
Rounding arc contains slot;
G, it is heat-treated, eliminates surface stress, prevent stress concentration;
H, on the basis of raceway, grinding outer circle, both ends of the surface to size ensure size, tolerance to drawing requirement;
I, on the basis of outer circle and end face, accurate grinding processes raceway;Contain slot with same benchmark grinding circular arc, protects
Raceway circularity and size are demonstrate,proved, ensures the position degree of raceway and mounting groove.
2. few teeth difference precise planetary reducer interior bracing technique according to claim 1, it is characterised in that:In step
In A, selection is low-carbon high duty alloy Steel material, in step E, contains the processing of slot carburizing and quenching, carburizing to raceway and circular arc
Layer depth is 1.1-1.4mm.
3. few teeth difference precise planetary reducer interior bracing technique according to claim 1, it is characterised in that:In step
In A, selection is high intensity mild steel material, in step E, contains slot local high-frequency quenching treatment to raceway and circular arc.
4. few teeth difference precise planetary reducer interior bracing technique according to claim 1, it is characterised in that:Step G
In, it is heat-treated as lonneal.
5. few teeth difference precise planetary reducer interior bracing technique according to claim 2 or 3, it is characterised in that:Step
Heat treatment in rapid B is isothermal normalizing, and isothermal normalizing hardness is HB160-190.
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CN108747243A (en) * | 2018-08-06 | 2018-11-06 | 合肥银泉铸造有限责任公司 | A kind of planetary gear processing technology |
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