CN106493523B - A kind of processing technology of steel alloy divergence type solid cage - Google Patents

A kind of processing technology of steel alloy divergence type solid cage Download PDF

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Publication number
CN106493523B
CN106493523B CN201611163640.XA CN201611163640A CN106493523B CN 106493523 B CN106493523 B CN 106493523B CN 201611163640 A CN201611163640 A CN 201611163640A CN 106493523 B CN106493523 B CN 106493523B
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China
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diameter
retainer
hole
processing
allowance
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CN201611163640.XA
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Chinese (zh)
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CN106493523A (en
Inventor
曹阳
张凯锐
王涛
刘颖志
薛雪
徐雷
孙慧广
廖子华
佐景涛
张翔
杜杰
孙怀全
范继承
武伟
高强
石广超
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中航工业哈尔滨轴承有限公司
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Publication of CN106493523A publication Critical patent/CN106493523A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23POTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Abstract

A kind of processing technology of steel alloy divergence type solid cage, belongs to technical field of mechanical processing.The present invention solves that retainer outer diameter, inside diameter surface roughness existing for existing steel alloy divergence type solid cage processing technology are unqualified, and retainer outer diameter and internal diameter machining accuracy are poor, the unstable problem of retainer dimension of inner and outer diameters.Steps are as follows:Vehicle shapes;Grind both ends of the surface;Bore rivet hole;Bolt;Marking;Grind outer diameter;Car diameter and chamfering eventually;Bore hole milling;Pin is torn in deburring open;Milling cave;The second rivet angle of spot hole;Light is adornd;Cleaning;Flaw detection;Final inspection;It is silver-plated;Packaging.The present invention is used for the processing of steel alloy divergence type solid cage.

Description

A kind of processing technology of steel alloy divergence type solid cage

Technical field

The present invention relates to a kind of processing technologys of bearing retainer, belong to technical field of mechanical processing.

Background technology

Rolling bearing rated speed is higher, and service life is longer, is the higher bearing of a kind of precision, especially deep-groove ball axis It is the most commonly used type of purposes in rolling bearing to hold.Main building block one of of the retainer as bearing, to itself plus The requirement of work precision is also higher and higher.Especially for steel alloy divergence type solid cage, processing technology directly affects it Precision.

The conventional flowsheet of existing steel alloy divergence type solid cage is:Rough turn molding → quenched → thin vehicle molding → bore outside rivet hole (common driller) → angle of spot hole of falling rivet → bolt → marking → drilling → fraising (common driller) → mill Diameter → end, pin → milling cave (plain-milling machine) → angle of spot hole of falling rivet → light decorations → cleaning → end was torn in interior diameter → chamfering → deburring open Inspection → silver-plated → packaging;It is that will process pocket hole procedure arrangement in mill outer diameter process, eventually before interior diameter process, retainer at this time Not complete, the interrupted surface in inside and outside diameter surface finds that faceted pebble degree and ovality are bad, outer when grinding outer diameter process Diameter size is unstable;And the phenomenon that there are interrupted turning in interior diameter eventually, in inside diameter surface, there are vehicles to add at pocket hole Work chatter mark trace, causes retainer presentation quality unqualified, since interrupted turning keeps tool wear very fast and cutter work in-process It is easy to generate tipping phenomenon, so directly affecting the stability of internal diameter size.There are a kind of any of the above described processing problems, all can Lead to product unrepairable and scrap, cause serious economic loss, is delayed delivery date.

Invention content

The present invention be in order to solve retainer outer diameter existing for existing steel alloy divergence type solid cage processing technology, Inside diameter surface roughness is unqualified, and retainer outer diameter and internal diameter machining accuracy are poor, and retainer dimension of inner and outer diameters is unstable to ask Topic, and then provide a kind of processing technology of steel alloy divergence type solid cage.

Used technical solution is the present invention to solve above-mentioned technical problem:

A kind of processing technology of steel alloy divergence type solid cage, steps are as follows:

One, vehicle shapes:Retainer carries out the processing that feeds intake using forging or bar, and the forging is annular workpieces, the stick Material is cylindrical workpiece;

A) using forging feed intake processing when, first by the rough turn forming of workpiece, then modifier treatment, last thin vehicle forming, Specific method is:

1, the both ends of the surface of first rough turned piece, internal diameter, outer diameter, interior exterior angle, the workpiece size obtained after rough turn is retainer The allowance that finished product is stayed is:1.5~1.6mm of outer diameter allowance, 1.1~1.3mm of internal diameter allowance, end face allowance 0.7~ Then 0.8mm carries out modifier treatment to the workpiece after rough turn;

2, using cutoff tool, treated that workpiece carries out that cut-out becomes symmetrical two sections of parts to quenched;

3, treated that two sections of parts carry out thin vehicle shaping operation respectively to quenched, the thin vehicle shaping operation to every section of part Detailed process is:Thin vehicle first end face, internal diameter and exterior angle in falling, then thin vehicle second end face, outer diameter and exterior angle in falling, thin vehicle at The every section of accessory size obtained after shape is that retainer finished product stays allowance:0.3~0.4mm of outer diameter allowance, internal diameter allowance 0.5~ 0.6mm, first end face and second end face are total to 0.1~0.15mm of allowance;

B) using bar feed intake processing when, the internal diameter of bar and outer diameter are subjected to thin vehicle directly on numerical control bar machine Forming, the bar work after being shaped to thin vehicle carry out cut-out using cutoff tool and become several sections of equal sized parts, will The thin vehicle both ends of the surface of each section of part after cut-out, obtained every section of accessory size is that retainer finished product stays processing after this step Surplus:0.3~0.4mm of outer diameter allowance, 0.5~0.6mm of internal diameter allowance, both ends of the surface are total to 0.1~0.15mm of allowance;To on bar machine Part after processing is completed carries out modifier treatment, arbitrary two sections of parts after cut-out can Combined machining be a split type holding Frame;

Two, both ends of the surface are ground:Double-ended grinding machine is all made of to the both ends of the surface of every section of part after step 1 to grind, this process Allowance be 0.1mm~0.15mm, part end face size reaches retainer finished product face size after processing;

Three, rivet hole is bored:On digital controlled processing central machine tool, two sections of equal sized parts are stitched together, will be spelled After two sections of parts fixations after connecing, unified processing is carried out to two sections of parts, bores rivet hole using drill bit, the machine direction of drill bit hangs down Directly in the contact surface of two sections of parts, then the first rivet angle of spot hole;

Four, bolt:Pin is inserted into rivet hole by hand, it is total to become retainer after two sections of part rivetings are combined together Body, then the processing of follow-up outer diameter, internal diameter and pocket hole is carried out to it;

Five, marking:Using pneumatic marking machine engraved markings on the retainer totality upper surface after riveted, this label Specific location is the center-diameter of retainer internal diameter and outer diameter;

Six:Grind outer diameter:Mill outer diameter processing eventually, allowance 0.3 are totally carried out to the retainer after being marked in step 5 Retainer complement outside diameter is worked into retainer finished product outer diameter size by~0.4mm, this process;

Seven, whole interior diameter and chamfering:Allowance is 0.5~0.6mm, and retainer complement bore diameter is worked into guarantor by this process It holds and puts up product internal diameter size;

Eight, hole milling is bored:Pocket hole is bored using alloy tool steel bit on numerical control machining center, first pocket hole is carried out using milling cutter thick Processing, then finished, the pocket pore size obtained after finishing is retainer finished product pocket pore size;

Nine:Pin is torn in deburring open:The burr generated in process is removed using deburring cutter, then pin is removed, it will be smart Two sections of parts after processing separately carry out further deburring processing;

Ten, milling cave:Retainer totality both ends of the surface difference milling rivet hole after tearing pin open, by two sections of parts point when milling cave The central axis of other clamping, the rivet hole is overlapped with the central axis of rivet hole, and the longitudinal section in the rivet hole is ladder Shape structure;

11, fall the second rivet angle of spot hole;

12, light is adornd;

13, it cleans;

14, it detects a flaw;

15, final inspection;

16, silver-plated;

17, it packs.

The present invention has the following effects that compared with prior art:

1, the process (boring hole milling) for processing pocket hole is arranged in after mill outer diameter process, eventually interior diameter process and is completed, this When outer diameter, internal diameter size be finished size, process behind pocket hole without reprocessing internal diameter, external diameter surface, avoid inside and outside The problem of diameter surface discontinuously processes.Compared with existing processing technology, internal diameter presentation quality reaches technological requirement and extends The service life of process tool avoids process tool and generates tipping phenomenon, processing dimension is made to stablize.And the processing base in pocket hole Quasi- face is retained forever, is not destroyed, and benchmark machined surface is found when being spent convenient for subsequent detection pocket hole circumferential position, existing to add The processing datum in pocket hole is destroyed by work technological process, and benchmark processing is can not find when circumferential position is spent in subsequent detection pocket hole Face causes pocket hole circumferential position degree unqualified, easily leads to final this batch of product and does and scraps processing.

2, reduce the allowance in the process of drilling and milling hole, because retainer internal diameter, external diameter surface are machined to end product rule It is very little, the wear rate of drill bit, milling cutter is greatly reduced, cutting-tool's used life is improved.

3, it increases and grinds two plane processes, improve the geometric accuracy and dimensional accuracy of plane to a certain extent, and And plane is to process a machining benchmark surface in pocket hole, and detect the measurement datum of pocket hole phase mutual deviation, keeps pocket hole mutual Difference increases, and the position in pocket hole is more accurate.

Description of the drawings

Fig. 1 is the main cross-sectional schematic diagram of rivet hole Special Fixture for Machining;

Fig. 2 is the main cross-sectional schematic diagram of the first workseat;

Fig. 3 is the schematic top plan view of Fig. 2;

Fig. 4 is the schematic top plan view of the first cover board;

Fig. 5 is the main cross-sectional schematic diagram of rivet hole Special Fixture for Machining;

Fig. 6 is the schematic top plan view of second workpiece seat;

Fig. 7 is the A-A of Fig. 6 to schematic cross-sectional view;

Fig. 8 is the schematic top plan view of the second cover board;

Fig. 9 is the B-B direction schematic cross-sectional view of Fig. 8;

Figure 10 is the main cross-sectional schematic diagram of retainer finished product;

Figure 11 is the K of Figure 10 to partial schematic diagram.

Specific implementation mode

Specific implementation mode one:Illustrate present embodiment, a kind of steel alloy separation of present embodiment in conjunction with Fig. 1~Figure 11 The processing technology of type solid cage, steps are as follows:

One, vehicle shapes:Retainer carries out the processing that feeds intake using forging or bar, and the forging is annular workpieces, the stick Material is cylindrical workpiece;

A) using forging feed intake processing when, first by the rough turn forming of workpiece, then modifier treatment, last thin vehicle forming, Specific method is:

1, the both ends of the surface of first rough turned piece, internal diameter, outer diameter, interior exterior angle, the workpiece size obtained after rough turn is retainer The allowance that finished product is stayed is:1.5~1.6mm of outer diameter allowance, 1.1~1.3mm of internal diameter allowance, end face allowance 0.7~ Then 0.8mm carries out modifier treatment to the workpiece after rough turn;

2, using cutoff tool, treated that workpiece carries out that cut-out becomes symmetrical two sections of parts to quenched;

3, treated that two sections of parts carry out thin vehicle shaping operation respectively to quenched, the thin vehicle shaping operation to every section of part Detailed process is:Thin vehicle first end face, internal diameter and exterior angle in falling, then thin vehicle second end face, outer diameter and exterior angle in falling, thin vehicle at The every section of accessory size obtained after shape is that retainer finished product stays allowance:0.3~0.4mm of outer diameter allowance, internal diameter allowance 0.5~ 0.6mm, first end face and second end face are total to 0.1~0.15mm of allowance;

B) using bar feed intake processing when, the internal diameter of bar and outer diameter are subjected to thin vehicle directly on numerical control bar machine Forming, the bar work after being shaped to thin vehicle carry out cut-out using cutoff tool and become several sections of equal sized parts, will The thin vehicle both ends of the surface of each section of part after cut-out, obtained every section of accessory size is that retainer finished product stays processing after this step Surplus:0.3~0.4mm of outer diameter allowance, 0.5~0.6mm of internal diameter allowance, both ends of the surface are total to 0.1~0.15mm of allowance;To on bar machine Part after processing is completed carries out modifier treatment, arbitrary two sections of parts after cut-out can Combined machining be a split type holding Frame;

Two, both ends of the surface are ground:Double-ended grinding machine is all made of to the both ends of the surface of every section of part after step 1 to grind, this process Allowance be 0.1mm~0.15mm, part end face size reaches retainer finished product face size after processing;

Three, rivet hole is bored:On digital controlled processing central machine tool, two sections of equal sized parts are stitched together, will be spelled After two sections of parts fixations after connecing, unified processing is carried out to two sections of parts, rivet hole 102, the processing side of drill bit are bored using drill bit To the contact surface perpendicular to two sections of parts, then the first rivet angle of spot hole;

Four, bolt:Pin is inserted into rivet hole 102 by hand, becomes retainer after two sections of part rivetings are combined together It is overall, then the processing of follow-up outer diameter, internal diameter and pocket hole 101 is carried out to it;

Five, marking:Using pneumatic marking machine engraved markings on the retainer totality upper surface after riveted, this label Specific location is the center-diameter of retainer internal diameter and outer diameter;

Six:Grind outer diameter:Mill outer diameter processing eventually, allowance 0.3 are totally carried out to the retainer after being marked in step 5 Retainer complement outside diameter is worked into retainer finished product outer diameter size by~0.4mm, this process;

Seven, whole interior diameter and chamfering:Allowance is 0.5~0.6mm, and retainer complement bore diameter is worked into guarantor by this process It holds and puts up product internal diameter size;

Eight, hole milling is bored:Pocket hole 101 is bored using alloy tool steel bit on numerical control machining center, using milling cutter first to pocket hole 101 Roughing is carried out, then is finished, 101 size of pocket hole obtained after finishing is 101 size of retainer finished product pocket hole;

Nine:Pin is torn in deburring open:The burr generated in process is removed using deburring cutter, then pin is removed, it will be smart Two sections of parts after processing separately carry out further deburring processing;

Ten, milling cave:Retainer totality both ends of the surface difference milling rivet hole 103 after tearing pin open, by two section zero when milling cave Part distinguishes clamping, and the central axis in the rivet hole 103 is overlapped with the central axis of rivet hole 102, the rivet hole 103 Longitudinal section be trapezium structure;

11, fall the second rivet angle of spot hole;

12, light is adornd;

13, it cleans;

14, it detects a flaw;

15, final inspection;

16, silver-plated;

17, it packs.

101 process (boring hole milling) of processing pocket hole is arranged in after grinding outer diameter process, eventually interior diameter process and is completed, at this time Outer diameter, internal diameter size be finished size, process behind pocket hole 101 without reprocessing internal diameter, external diameter surface, avoid in, The problem of external diameter surface is discontinuously processed, outer diameter faceted pebble degree are increased to 0.003~0.005mm by 0.05 original~0.07mm, outside Diameter ovality is increased to 0.003~0.005mm by 0.05 original~0.08mm, the control of outer diameter scattered error 0.004~ Between 0.007mm.

Rough turn, thin vehicle forming cutter for same is NC cutting tool, and the purpose of thin vehicle forming is to remove quenched rear steelframe Discoloration, deformation, also uniform sizes, reduce work pieces process scattered error, further increase the effects that processing precision of products;

Numerical control bar machine selected by present embodiment is numerical control bar machine HTC5050.

Specific implementation mode two:Embodiment is described with reference to Fig. 11, and bar is used for the retainer of outer diameter≤40mm Feed intake processing, and the retainer of outer diameter > 40mm and internal diameter >=30mm is fed intake processing using forging.So design, if workpiece size mistake It is small to break forging, bar can only be used.The advantages of forging, can eliminate the internal flaw of part or blank;The shape of forging, ruler Very little stability is good, and has higher comprehensive mechanical property;The sharpest edges of forging be good toughness, fibr tissue rationally, forging Between performance change it is small.Other compositions are same as the specific embodiment one with connection relation.

Specific implementation mode three:Selected drill bit is the high-speed steel drill containing cobalt in step 3, diameter range is 2~ 2.05mm.So design, steel alloy material is not only hard but also viscous, and hardness reaches 37~38HRC after modifier treatment, and rivet hole machined belongs to Deep hole machining, the working depth in hole are 7~8 times of bore dia.Folding drill bit is easy to when processing, the drill bit of the material containing cobalt has The characteristic of high temperature resistant and abrasion performance, toughness is preferable, and cutting edge is very sharp, can avoid the generation of viscous bits, built-up edge, is more suitable for processing Some more viscous materials and difficult-to-machine material.Other compositions are the same as one or two specific embodiments with connection relation.

Specific implementation mode four:The outside diameter in rivet hole 103 is in step 10 that embodiment is described with reference to Fig.5, 11.5mm, end diameter 9.2mm.So design, craftsmanship is preferable, easy to process, the burr generated when being processed convenient for removal. Other compositions are the same as the specific implementation mode 3 with connection relation.

Specific implementation mode five:Illustrate present embodiment in conjunction with Fig. 1~4, carries out boring 102 process of rivet hole in step 3 In, the retainer for carrying out drilling and milling process totally fixes clamping in digital controlled processing central machine tool by rivet hole Special Fixture for Machining On, the rivet hole Special Fixture for Machining includes the first workseat 1, the first cover board 2 and the first bolt 3, first workseat 1 Include positioned at the middle part of the first workseat 1 positioning land 11 and be co-axially located at 12 He of first boss at 1 both ends of the first workseat Second boss 13,11 upper surface of positioning land offer annular groove 11-1 along positioning 11 circumferencial direction of land, position land 11 On the bottoms annular groove 11-1 offer several first through hole 11-2 along its circumferencial direction, carry out the retainer of drilling and milling process It is totally sleeved in first boss 12, and 11 top of positioning land is pressed on by the first cover board 2 and the first bolt 3, second is convex Platform 13 is fixedly clamped by chuck on the workbench of numerical control machining center.So design, passes through the first bolt 3 and the first cover board Retainer is totally pressed on the first workseat 1 by 2 effect, and the inner headed face and the lateral surface of first boss 12 of retainer are matched It closes, positions the central axis of several first through hole 11-2 in land 11 and overlapped with 102 axis of rivet hole on retainer finished product.

Using this rivet hole Special Fixture for Machining, clamped one time can be completed the brill in pocket hole 101, rough mill, finish-milling processing work Sequence, it is easy to loading and unloading, be conducive to operator's adjustment, processing efficiency significantly improves.The central axis in all pocket holes 101 encloses on retainer It is positioned, is made in central axis and the retainer inner circle of full circle with retainer totality inner headed face and end face when being processed at a full circle The concentricity of mandrel line meets technology requirement.Using this rivet hole Special Fixture for Machining, the machining accuracy of rivet hole 102 is improved And the stability of 102 size of rivet hole.Other compositions are the same as the specific implementation mode 1,2 or 4 with connection relation.

Specific implementation mode six:Illustrate that present embodiment, its axial direction of 2 upper edge of the first cover board open up in conjunction with Fig. 1, Fig. 4 There are U-shaped straight slot 2-1, the first bolt 3 to be located in U-shaped straight slot 2-1.So design, facilitates the assembly and disassembly of the first cover board 2.Other compositions It is identical as specific implementation mode five as connection relation.

Specific implementation mode seven:Illustrate present embodiment in conjunction with Fig. 5~9, is carried out in step 10 in the process of milling cave, carry out milling The part of rivet hole process fixes clamping on digital controlled processing central machine tool by rivet hole Special Fixture for Machining, the riveting Nail hole cave Special Fixture for Machining includes the second cover board 4, second workpiece seat 5, the first positioning pin 6, the second positioning pin 7 and the second bolt 8,

Second cover board 4 is annular slab, and the periphery of the second cover board 4 has been uniformly arranged several arc-shaped slot pass 4-1, the circle The cross section of arc-shaped slot 4-1 is major arc, and the axis of the arc-shaped slot pass 4-1 is overlapped with 102 axis of rivet hole of part, the Its axial direction of two cover boards, 4 upper edge is opened up there are two positioning through hole 4-2, and the upper surface of second workpiece seat 5 offers circular groove 5-1, The bottom end of the circular groove 5-1 offers center positioning hole 5-2, the first Blind locating holes 5-3 and two the second Blind locating holes 5- 4, two the second Blind locating holes 5-4 and two positioning through hole 4-2 or more faces are arranged, and the lower part of part is located at circular groove 5-1 It is interior, part between the second cover board 4 and second workpiece seat 5, the central axis of the second cover board 4, the central axis of part and in The central axis of heart location hole 5-2 overlaps setting, a rivet hole 102 on part and the first Blind locating holes 5-3 or more faces Setting, and positioned by the second positioning pin 7, the second cover board 4 is by be installed on respectively in two positioning through hole 4-2 two first Positioning pin 6 positions, and part is fixedly clamped by the second bolt 8.

So design, when processing, first with the outer diameter and end face Primary Location of part, using the second positioning pin 7 by part cross To being fixed on second workpiece seat 5, to ensure that the rivet hole 103 after processing and rivet hole 102 are coaxial, prevent to deviate; Second cover board 4 is positioned laterally on second workpiece seat 5 by then the second cover board 4 in the face pressure of part upper end using the first positioning pin 6 On, ensure that the axis of the arc-shaped slot pass 4-1 on the second cover board 4 is overlapped with 102 axis of rivet hole on part;Finally, with second Bolt 8 compresses the second cover board 4 and tightens, and prevents the second cover board 4 and loose-parts, influences processing dimension and precision.Other groups At identical as specific implementation mode one, two, four or six as connection relation.

Specific implementation mode eight:Illustrate present embodiment in conjunction with Fig. 5 and Fig. 8, two positioning through hole 4- on the second cover board 4 2 are symmetrical arranged.So design ensures that the positioning between the second cover board 4 and second workpiece seat 5 is more acurrate.It is other to form and connect Relationship is identical as specific implementation mode seven.

Specific implementation mode nine:Illustrate present embodiment, a kind of steel alloy separation of present embodiment in conjunction with Fig. 1~Figure 11 The processing technology of type solid cage, steps are as follows:

One, vehicle shapes:The processing that feeds intake is carried out using forging, the forging is annular workpieces;

First by the rough turn forming of workpiece, then modifier treatment, last carefully vehicle forming, specific method are:

1, the both ends of the surface of first rough turned piece, internal diameter, outer diameter, fall in exterior angle, the workpiece size obtained after rough turn is:Outer diameter Then 47.5~47.7mm, 35.4~35.55mm of internal diameter, 18.8~19mm of panel height adjust two sections of parts after rough turn Matter processing;

2, using cutoff tool, treated that workpiece carries out that cut-out becomes symmetrical two sections of parts, every section zero after cut-out to quenched The panel height of part is 7.9~8mm (panel height is the distance between both ends of the surface herein);

3, treated that two sections of parts carry out thin vehicle shaping operation respectively to quenched, the thin vehicle shaping operation to every section of part Detailed process is:Thin vehicle first end face, internal diameter and exterior angle in falling, then thin vehicle second end face, outer diameter and exterior angle in falling, thin vehicle at The every section of accessory size obtained after shape is:46.3~46.4mm of outer diameter, 36.9~37mm of internal diameter, 7.2~7.3mm of panel height;

Two, both ends of the surface are ground:Double-ended grinding machine is all made of to the both ends of the surface of every section of part after step 1 to grind, this process The part panel height obtained afterwards is 6.98~7mm, and part end face size reaches retainer finished product face size after processing;

Three, rivet hole is bored:On digital controlled processing central machine tool, two sections of equal sized parts are stitched together, will be spelled After two sections of parts fixations after connecing, unified processing is carried out to two sections of parts, rivet hole 102, the processing side of drill bit are bored using drill bit To the contact surface perpendicular to two sections of parts, obtained 102 a diameter of 2~2.05mm of rivet hole, then the first rivet angle of spot hole, The width at angle is up to 0.3mm;

Four, bolt:Pin is inserted into rivet hole 102 by hand, becomes retainer after two sections of part rivetings are combined together It is overall, then the processing of follow-up outer diameter, internal diameter and pocket hole 101 is carried out to it;

Five, marking:Using pneumatic marking machine engraved markings on the retainer totality upper surface after riveted, this label Specific location is the center-diameter of retainer internal diameter and outer diameter;

Six:Grind outer diameter:It is total that the processing of mill outer diameter, obtained retainer eventually are totally carried out to the retainer after being marked in step 5 External diameter is 45.95~45.9mm, and retainer complement outside diameter is worked into retainer finished product outer diameter size by this process;

Seven, whole interior diameter and chamfering:The retainer complement bore diameter obtained after whole vehicle is 37.5~37.57mm, this process will Retainer complement bore diameter is worked into retainer finished product internal diameter size;

Eight, hole milling is bored:Pocket hole 101 is bored using alloy tool steel bit on numerical control machining center, obtained 101 size of pocket hole is 9.7~9.8mm first carries out roughing to pocket hole 101 using milling cutter, then is finished, and the pocket hole 101 obtained after finishing is straight 10~10.1mm of diameter size is 101 size of retainer finished product pocket hole;

Nine:Pin is torn in deburring open:The burr generated in process is removed using deburring cutter, then pin is removed, it will be smart Two sections of parts after processing separately carry out further deburring processing;

Ten, milling cave:Retainer totality both ends of the surface difference milling rivet hole 103 after tearing pin open, by two section zero when milling cave Part distinguishes clamping, and the central axis in the rivet hole 103 is overlapped with the central axis of rivet hole 102, the rivet hole 103 Longitudinal section be trapezium structure, specific size is that the outside diameter in rivet hole 103 is 11.4~11.6mm, and end diameter is 9.1~9.3mm, acupoint depth are 5.7~5.8mm;

11, the second rivet angle of spot hole, the width of chamfering are up to 0.3mm;

12, light is adornd;

13, it cleans;

14, it detects a flaw;

15, final inspection;

16, silver-plated;

17, it packs.

Claims (8)

1. a kind of processing technology of steel alloy divergence type solid cage, it is characterised in that:Steps are as follows:
One, vehicle shapes:Retainer carries out the processing that feeds intake using forging or bar, and the forging is annular workpieces, and the bar is Cylindrical workpiece;
A) using forging feed intake processing when, first by the rough turn forming of workpiece, then modifier treatment, last thin vehicle forming, specifically Method is:
1, the both ends of the surface of first rough turned piece, internal diameter, outer diameter, interior exterior angle, the workpiece size obtained after rough turn is retainer finished product The allowance stayed is:1.5~1.6mm of outer diameter allowance, 1.1~1.3mm of internal diameter allowance, end face 0.7~0.8mm of allowance, so Modifier treatment is carried out to the workpiece after rough turn afterwards;
2, using cutoff tool, treated that workpiece carries out that cut-out becomes symmetrical two sections of parts to quenched;
3, treated that two sections of parts carry out thin vehicle shaping operation respectively to quenched, specific to the thin vehicle shaping operation of every section of part Process is:Thin vehicle first end face, internal diameter and exterior angle in falling, then thin vehicle second end face, outer diameter and exterior angle in falling, after thin vehicle forming Every section of obtained accessory size is that retainer finished product stays allowance:0.3~0.4mm of outer diameter allowance, internal diameter allowance 0.5~ 0.6mm, first end face and second end face are total to 0.1~0.15mm of allowance;
B) using bar feed intake processing when, directly on numerical control bar machine by the internal diameter of bar and outer diameter carry out thin vehicle at Shape, the bar work after being shaped to thin vehicle carry out cut-out using cutoff tool and become several sections of equal sized parts, will cut The thin vehicle both ends of the surface of each section of part having no progeny, obtained every section of accessory size is that retainer finished product stays more than processing after this step Amount:0.3~0.4mm of outer diameter allowance, 0.5~0.6mm of internal diameter allowance, both ends of the surface are total to 0.1~0.15mm of allowance;To adding on bar machine Part after the completion of work carries out modifier treatment, arbitrary two sections of parts after cut-out can Combined machining be a split type holding Frame;
Two, both ends of the surface are ground:Double-ended grinding machine is all made of to the both ends of the surface of every section of part after step 1 to grind, this process adds Spare time amount is 0.1mm~0.15mm, and part end face size reaches retainer finished product face size after processing;
Three, rivet hole is bored:On digital controlled processing central machine tool, two sections of equal sized parts are stitched together, after splicing Two sections of parts fixations after, unified processing is carried out to two sections of parts, drill bit is used to bore rivet hole (102), the machine direction of drill bit Perpendicular to the contact surface of two sections of parts, then the first rivet angle of spot hole;
Four, bolt:Pin is inserted into rivet hole (102) by hand, it is total to become retainer after two sections of part rivetings are combined together Body, then the processing of follow-up outer diameter, internal diameter and pocket hole (101) is carried out to it;
Five, marking:Using pneumatic marking machine engraved markings on the retainer totality upper surface after riveted, this label it is specific Position is the center-diameter of retainer internal diameter and outer diameter;
Six:Grind outer diameter:To in step 5 mark after retainer totally carry out eventually mill outer diameter processing, allowance be 0.3~ Retainer complement outside diameter is worked into retainer finished product outer diameter size by 0.4mm, this process;
Seven, whole interior diameter and chamfering:Allowance is 0.5~0.6mm, and retainer complement bore diameter is worked into retainer by this process Finished product internal diameter size;
Eight, hole milling is bored:Pocket hole (101) are bored using alloy tool steel bit on numerical control machining center, using milling cutter first to pocket hole (101) Roughing is carried out, then is finished, pocket hole (101) size obtained after finishing is retainer finished product pocket hole (101) size;
Nine:Pin is torn in deburring open:The burr generated in process is removed using deburring cutter, then pin is removed, and will be finished Two sections of parts afterwards separately carry out further deburring processing;
Ten, milling cave:Retainer totality both ends of the surface difference milling rivet hole (103) after tearing pin open, by two sections of parts when milling cave Clamping, the central axis of the rivet hole (103) are overlapped with the central axis of rivet hole (102) respectively, the rivet hole (103) longitudinal section is trapezium structure;
11, fall the second rivet angle of spot hole;
12, light is adornd;
13, it cleans;
14, it detects a flaw;
15, final inspection;
16, silver-plated;
17, it packs.
2. a kind of processing technology of steel alloy divergence type solid cage according to claim 1, it is characterised in that:For The retainer of outer diameter≤40mm is fed intake processing using bar, and the retainer of outer diameter > 40mm and internal diameter >=30mm are fed intake using forging Processing.
3. a kind of processing technology of steel alloy divergence type solid cage according to claim 1 or 2, it is characterised in that: Selected drill bit is the high-speed steel drill containing cobalt in step 3, and diameter range is 2~2.05mm.
4. a kind of processing technology of steel alloy divergence type solid cage according to claim 3, it is characterised in that:Step The outside diameter of rivet hole (103) is 11.5mm, end diameter 9.2mm in ten.
5. a kind of processing technology of steel alloy divergence type solid cage according to claim 1,2 or 4, feature exist In:It is carried out in step 3 in brill rivet hole (102) process, the retainer for carrying out drilling and milling process is overall special by rivet hole machined Clamping is fixed on digital controlled processing central machine tool with fixture, and the rivet hole Special Fixture for Machining includes the first workseat (1), the One cover board (2) and the first bolt (3), first workseat (1) include the positioning land being located in the middle part of the first workseat (1) (11) first boss (12) and second boss (13) at the first workseat (1) both ends are co-axially located at and, in positioning land (11) End face offers annular groove (11-1), the annular groove (11-1) in positioning land (11) along positioning land (11) circumferencial direction Bottom offers several first through hole (11-2) along its circumferencial direction, and the retainer for carrying out drilling and milling process is totally sleeved on first On boss (12), and it is pressed on above positioning land (11) by the first cover board (2) and the first bolt (3), second boss (13) It is fixedly clamped on the workbench of numerical control machining center by chuck.
6. a kind of processing technology of steel alloy divergence type solid cage according to claim 5, it is characterised in that:First Its axial direction of cover board (2) upper edge offers U-shaped straight slot (2-1), and the first bolt (3) is located in U-shaped straight slot (2-1).
7. a kind of processing technology of steel alloy divergence type solid cage according to claim 1,2,4 or 6, feature exist In:It is carried out in step 10 in the process of milling cave, the part for carrying out milling rivet hole process is solid by rivet hole Special Fixture for Machining Clamping is determined on digital controlled processing central machine tool, and rivet hole Special Fixture for Machining includes the second cover board (4), second workpiece seat (5), the first positioning pin (6), the second positioning pin (7) and the second bolt (8),
Second cover board (4) is annular slab, and the periphery of the second cover board (4) has been uniformly arranged several arc-shaped slot pass (4-1), described The cross section of arc-shaped slot pass (4-1) is major arc, the axis of the arc-shaped slot pass (4-1) and rivet hole (102) axis of part Line overlaps, its axial direction of the second cover board (4) upper edge is opened up there are two positioning through hole (4-2), and the upper surface of second workpiece seat (5) opens up There are circular groove (5-1), the bottom end of the circular groove (5-1) to offer center positioning hole (5-2), the first Blind locating holes (5- 3) with two the second Blind locating holes (5-4), face is set two the second Blind locating holes (5-4) up and down with two positioning through hole (4-2) It sets, the lower part of part is located in circular groove (5-1), and part is between the second cover board (4) and second workpiece seat (5), and second The central axis of the central axis of cover board (4), the central axis of part and center positioning hole (5-2), which overlaps, to be arranged, on part Face is arranged one rivet hole (102) up and down with the first Blind locating holes (5-3), and is positioned by the second positioning pin (7), the second lid Plate (4) is positioned by two the first positioning pins (6) being installed on respectively in two positioning through hole (4-2), and part passes through the second spiral shell Bolt (8) is fixedly clamped.
8. a kind of processing technology of steel alloy divergence type solid cage according to claim 7, it is characterised in that:Second Two positioning through hole (4-2) on cover board (4) are symmetrical arranged.
CN201611163640.XA 2016-12-15 2016-12-15 A kind of processing technology of steel alloy divergence type solid cage CN106493523B (en)

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