CN106736317A - A kind of segmental machining method of bull gear - Google Patents
A kind of segmental machining method of bull gear Download PDFInfo
- Publication number
- CN106736317A CN106736317A CN201611074171.4A CN201611074171A CN106736317A CN 106736317 A CN106736317 A CN 106736317A CN 201611074171 A CN201611074171 A CN 201611074171A CN 106736317 A CN106736317 A CN 106736317A
- Authority
- CN
- China
- Prior art keywords
- tooth
- tooth section
- milling
- line
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 244000309464 bull Species 0.000 title claims abstract description 29
- 238000003754 machining Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000003801 milling Methods 0.000 claims abstract description 75
- 238000013461 design Methods 0.000 claims abstract description 41
- 238000012545 processing Methods 0.000 claims abstract description 34
- 238000005259 measurement Methods 0.000 claims abstract description 10
- 230000011218 segmentation Effects 0.000 claims abstract description 7
- 238000003672 processing method Methods 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims description 14
- 238000005520 cutting process Methods 0.000 claims description 9
- 239000011324 bead Substances 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 8
- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 238000012958 reprocessing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 230000007547 defect Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005480 shot peening Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F9/00—Making gears having teeth curved in their longitudinal direction
- B23F9/08—Making gears having teeth curved in their longitudinal direction by milling, e.g. with helicoidal hob
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
Abstract
A kind of segmental machining method of bull gear, wherein described bull gear refers to gear ring of the reference diameter more than 6 meters, more than 4, described processing method comprises the following steps the number of bull gear segmentation：Each face of processing is needed to tooth section carries out rough milling, rough mills out each tooth form；Two end faces and intrados to tooth section carry out being finish-machined to design size；The tooth form and cylindrical and side faying face of tooth section are finished using the digital-control boring-milling machine with rotary table；Step 3）The step of including tooth section positioning is clamped on rotary table step using special frock and milling being carried out to tooth section using process tool.Segmental machining method to bull gear can be realized under conditions of the high-precision numerical control machine with measurement apparatus is not used using the present invention, machining accuracy is controllable, and processing cost is low.
Description
Technical field
The present invention relates to ring gear machining technical field, more particularly, to a kind of processing method of bull gear.
Background technology
In the prior art, bull gear（Refer to gear ring of the external diameter more than 6 meters）Two sections or four sections are generally divided into be made
Processing is made, each tooth section（Each section after bull gear is segmented is referred to as tooth section）Size it is still very big, cause gear ring to cast hair
Poor quality's control of base, usually occurs not meeting design requirement, it is necessary to situation about being repaired using repair welding；In addition, existing
When carrying out tooth Profile Machining to cast blank in technology, large gear special processing equipment is typically used using whole circle Combined machining
Form, thus result in high processing costs, processing efficiency is low, and interchangeability is poor.
If bull gear is divided into multistage, each tooth section is no more than 2 meters（Refer to the reference circle chord length of each segmentation）, hair
Base can be easier casting, also easily improve the castability of blank；It is also square during the processing installation and use of whole gear ring
Just lifting transport and maintenance is changed；It is divided into multistage to be manufactured, using modularized design, single hop production, interchangeability is good, also more holds
Quick production is easily realized to ensure reliable delivery date in time.
But, determined by the tooth Profile Machining precision of each tooth section by being divided into the precision after the bull gear of multistage is finally assembled
Fixed, the tooth Profile Machining precision of tooth section is mainly cylindrical straight including the machining accuracy of faying face, the position of tooth form and each section between tooth section
The uniformity in footpath, if the finishing of each tooth section is using the NC machining lathe with measurement apparatus, lathe has
Automatic measurement and cutter automatic compensation function, tooth section machining accuracy are easy to ensure, but the high accuracy with measurement apparatus
The acquisition cost of numerical control machine tool is higher, and enterprise does not all have typically.Enterprise is usually constructed with the conventional number with rotary table
Control boring and milling machine, but because the digital-control boring-milling machine for using is without automatic measurement and cutter automatic compensation function, therefore, it is difficult to ensure
The machining accuracy of tooth section.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of segmental machining method of bull gear, not only processing cost
It is low, and ensure that the machining accuracy of bull gear.
The technical scheme that is in order to solve the above-mentioned technical problem used of the present invention is：A kind of segmental machining side of bull gear
Method, wherein described bull gear refers to gear ring of the reference diameter more than 6 meters, the number of bull gear segmentation is described more than 4
Processing method comprise the following steps：
One）, to tooth section need processing each face carry out rough milling, rough mill out each tooth form；
Two）, to tooth section two end faces and intrados carry out being finish-machined to design size；
Three）, using the digital-control boring-milling machine with rotary table to tooth section tooth form and cylindrical and side faying face finish；
It is characterized in that：Step 3）Including the step being clamped in tooth section positioning using special frock on rotary table, wherein
Described special frock includes one piece of rectangular base plate, and the position near length direction two ends on base plate is fixed with respectively
One cushion block, is respectively equipped with an alignment pin on two cushion blocks, and two alignment pins are located at the homonymy in baseplate width direction；Cushion block
Middle part be provided with screw mounting hole, on cushion block with alignment pin the other end opposite at one end be respectively equipped with and pass through for milling cutter
Technology groove；A step for L-shaped, the side long of L-shaped and the width side of base plate are further respectively had at the two ends in floor length direction
To parallel, the position of the short side of L-shaped on baseplate width direction is consistent with the side residing for alignment pin, removable on step
Unload and be fixed with location-plate, the upper surface of the upper surface no more than cushion block of the location-plate；Two pieces of location-plates are symmetrical arranged, and fixed
Position plate is provided with oblique locating surface towards the side outside floor length direction, the angle X between two oblique locating surfaces and tooth sections two
Design angle between the faying face of side is equal；Location-plate is provided with for determining tooth form chi towards the side outside floor length direction
The straight locating surface I of very little precision, location-plate is provided with the size for determining exterior arc surface towards the side outside baseplate width direction
The straight locating surface II of precision；After step 2 carries out being finish-machined to design size to two end faces and inner arc surface of tooth section,
Make an end face of tooth section be in contact with cushion block tooth section is placed on cushion block, while make the inner arc surface of tooth section be close to two determining
Position pin, and the arc median plane of tooth section is coincided with the face of dividing equally of two oblique locating surface angles, finally using screw by setting
Be fixed on tooth section on cushion block with the screw mounting hole on cushion block by the through hole in tooth section.
Further, step 3）In, the finishing to the toothed surface and exterior arc surface and side faying face of tooth section, including essence
Cylindrical milling cambered surface to design size, can by location-plate width side straight locating surface II（303）, measurement monitoring external arc
The dimensional accuracy in face, then rotary table, two side faying faces of finish-milling tooth section, with the oblique positioning of location-plate in special frock
The precision of side faying face processing dimension is detected in face, makes the angle between the angle between two side faying faces and two oblique locating surfaces
X is equal；Multiple rotary workbench afterwards, using shaping each toothed surface of milling cutter milling to design size, therebetween can be by measuring
Tooth top monitors per tooth positional precision, finish-milling tooth to the measurement of straight locating surface I 302, the distance of straight locating surface II 303 and transverse tooth thickness
Milling Process is carried out using the multiple feed of small cutting output during shape face, after toothed surface is machined, shaping milling cutter brill is replaced by
Head, gets out on the faying face of side each hole for being used to connect, then by bit change-over for the wherein each refined hole of borer boring is arrived
Design size.
Further, step one）Described rough milling includes rough milling for the first time and rough milling for the second time, is rough milled in first time
Before, the step of also marking trim line and center line with a cast blank to tooth section, this is scribed ss line for the first time；
Described first time rough mills specially：Two side faying faces of milling tooth section, two end faces, inner arc surface, cylindrical to the layout line
Cambered surface and toothed surface, after rough milling for the first time, each machined surface of tooth section reserves larger surplus；Rough milled in first time and rough milled for the second time
Between also include following four steps：
1. the step of, each machined surface to tooth section carries out first time ultrasonic examination；
2. the step of, being heat-treated to tooth section；
3. the step of bead, is carried out to tooth section surface；
4., the tooth section after bead is rule again, i.e., second line, this line content is included in tooth section surface
Trim line and center line are marked, line meets each face surplus uniformly, and this line surplus is less than surplus of line for the first time；
By after aforementioned four step, then being rough milled for the second time to tooth section to the layout line；
After rough milling for the second time, second ultrasonic examination is carried out to tooth each machined surface of section, then carry out third time line, third time
In line, two end faces and inner arc surface of tooth section are rule according to design size, that is, rule balance of zero, remaining each face stroke
Line surplus is smaller than second line surplus, but is not zero；Subsequently into next step 2）；
Further, by step 3）After being finished to tooth section, also with following steps：
1）, coloration detection：Dye penetrant inspection detection is carried out to the flank of tooth, it is ensured that tooth section surface crudy meets design requirement, if any
Defect, is remedied using repair welding reprocessing；
2）, remaining hole beyond each hole of offside faying face rule；
3）, according to step 2）Line drilling tooth section on respective aperture；
4）, the removal tooth upper each Working position of section burr；
5）, to tooth section each critical size carry out accuracy detection；
6）, assembling：By institute, with teeth section puts together, the faying face alignment of two neighboring tooth section, is combined by side using bolt
Connection holes on face are fixedly connected；
7）, check the size of tooth pitch at gear compound graduation circular diameter and faying face, comply with design requirement.
Beneficial effect：
Using the present invention, in the finishing passes of tooth section, as a result of special frock, so as to before ensureing that clamping is firm
Put, it is ensured that：
1. tooth section is quick positions.Special frock to each straight locating surface after workbench by the special frock of centering is installed first, really
Actually be installed position and the relative position at digital-control boring-milling machine work table rotation center of fixed special frock, so that it is determined that tooth section is returned
Turn the relative position at center and digital-control boring-milling machine work table rotation center, centering is no longer carried out after the tooth section that is installed, by special work
The alignment pin of dress and each locating surface of location-plate, quickly, are accurately positioned tooth section；
2. making the processing of external arc can measure monitoring（By two straight locating surfaces II of itself and location-plate width（303）Phase
Contrast is monitored）；
3. monitoring can be measured in the process of tooth section side faying face（By its with location-plate on oblique locating surface（301）
Compare and be monitored）；
4. its position can measure monitoring in making the process of tooth section toothed surface,（Straight locating surface I by it with location-plate with
Straight locating surface II compares and is monitored）, the finishing to tooth section on common digital-control boring-milling machine finally being realized, can not only protect
Card machining accuracy, and processing efficiency can be improved, processing cost is reduced on the whole.
Further specific detailed description is done to the present invention with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the structural representation of special frock used by the present invention.
Fig. 2 is the A direction views of Fig. 1.
Fig. 3 is the B direction views of Fig. 1.
Fig. 4 is the view that tooth section is placed in frock.
Fig. 5 is the C of Fig. 4 to schematic diagram.
In figure, 1, base plate, 2, cushion block, 201, screw mounting hole, 202, technology groove, 3, location-plate, 301, oblique locating surface,
302nd, straight locating surface I, 303, straight locating surface II, 4, alignment pin, 5, tooth section, 501, Inner arc part, 502, side joint portion, 503,
Cylindrical arc portion, 504, middle interconnecting piece.
Specific embodiment
A kind of segmental machining method of bull gear, wherein described bull gear refers to tooth of the reference diameter more than 6 meters
Circle, more than 4, described processing method comprises the following steps the number of bull gear segmentation：
One）, need to tooth section each face of processing to carry out rough milling, and rough mill out each tooth form；
Wherein described rough milling includes rough milling for the first time and rough milling for the second time, before first time rough mills, also with one
The step of cast blank to tooth section marks trim line and center line, described trim line is included for defining inner arc surface material
The inner circle-line of removal amount, the outer round wires for defining exterior arc surface material removal amount, for define processing upper surface and lower surface
The boundary line of material removal amount and the boundary line for defining segmentation face material removal amount（Segmentation end face is side combination
Face）And teeth outline, this is scribed ss line for the first time, and line surplus is than larger.Material removal described herein is referred to by cutting
Prune except the material of tooth section surface.
It is this area routine techniques to be processed according to line, is repeated no more herein.
Described first time rough mills specially：According to each face of above-mentioned drawn each line milling tooth section（It is inner arc surface, cylindrical
Cambered surface, upper surface, lower surface and two side faying faces and toothed surface）, after rough milling for the first time, tooth each machined surface of section reserve compared with
Big surplus；First time rough mill with rough mill for the second time between also include following four steps：
1. the step of, each machined surface to tooth section carries out first time ultrasonic examination；
2. the step of, being heat-treated to tooth section；
3. the step of bead, is carried out to tooth section surface；
4., the tooth section after bead is rule again（Rule for second）, this line content be included in tooth section surface
Trim line and center line that foundation is wanted in this processing are marked, line meets each face surplus uniformly, second line surplus is less than
The surplus rule for the first time；
By after aforementioned four step, being rough milled for the second time to tooth section according to second line.
After rough milling for the second time, second ultrasonic examination is carried out to tooth each machined surface of section, then carry out third time line, the
In three line, two end faces and inner arc surface of tooth section are rule according to design size, that is, rule balance of zero, and remaining is each
Face line surplus is smaller than second line surplus, but is not zero；Subsequently into next step；
Two）, to tooth section two end faces and inner arc surface carry out being finish-machined to design size；
Three）, using the digital-control boring-milling machine with rotary table finishing is carried out to the toothed surface and periphery and side faying face of tooth section
Work（Described side faying face is the faying face that tooth section is connected with each other）.
This step 3）Specifically include the tooth section step that is clamped on rotary table of positioning using special frock and use
The step of process tool is finished to the toothed surface and periphery and side faying face of tooth section.
Wherein described special frock includes one piece of rectangular base plate 1, near the portion at length direction two ends on base plate 1
Position is fixed with a cushion block 2 respectively（If gear ring to be processed is than larger, tooth section arc is long, can be in two cushion blocks 2
Between be further added by a cushion block 2, referring to accompanying drawing, as in present embodiment）, a positioning is respectively equipped with two cushion blocks
Pin 4, two alignment pins are located at the homonymy of the width of base plate 1；The middle part of cushion block 2 is provided with screw mounting hole 201, on cushion block with
Alignment pin 4 the other end opposite at one end be respectively equipped with the technology groove 202 passed through for milling cutter；In the length direction of base plate 1
Two ends further respectively have a step for L-shaped, and the side long of L-shaped is parallel with the width of base plate 1, and the short side of L-shaped is in base plate 1
Position on width is consistent with the side residing for alignment pin 4, is detachably fixed on step and is provided with location-plate 3, such as,
Location-plate（3）Base plate can be fixed by screws in（1）Step on, the head of screw is not higher than the upper surface of location-plate.It is described
The upper surface of location-plate 3 no more than cushion block 2 upper surface, preferably with the corresponding end-faces flush of base plate 1 or a little higher than base plate 1
Upper surface（It is described in this paragraph " on " turn 90 degrees with Fig. 3 dextrorotations after gained accompanying drawing in itself " on " it is consistent）.
Two pieces of location-plates 3 are symmetrical arranged, and location-plate is towards outside floor length direction（I.e. back to floor length direction phase
Answer end）Side be provided with oblique locating surface 301 and straight locating surface I 302, the angle X between two oblique locating surfaces 301 and tooth section two
Design angle between individual side faying face is equal, relative with floor length direction Central Symmetry between two straight locating surfaces I 302,
Location-plate is provided with straight locating surface II 303 towards the side outside baseplate width direction, and the line with two alignment pins is parallel, passes through
Straight locating surface I 302, straight locating surface II 303 can determine that position of the special frock relative to digital-control boring-milling machine work table rotation center
Distance, specifically can by coordinate method with digital-control boring-milling machine work table rotation center as origin determine each locating surface in workbench
On position.
By step 2）Two end faces to tooth section and after inner arc surface carries out being finish-machined to design size, make tooth section
One end face is in contact with cushion block 2 and tooth section support is placed on cushion block 2, while making the inner arc surface of tooth section be close to two positioning
Pin 4, and make arc median plane and the floor length direction of tooth section divide face equally（It is also that two oblique locating surface angles divide face equally）
Coincide, be afterwards fixed on tooth section 5 with the screw mounting hole 201 on cushion block 2 by the through hole being located in tooth section 5 using screw
On cushion block 2.
Step 3）In, the finishing step of toothed surface and exterior arc surface and side faying face to tooth section is specific as follows：First
Finish-milling exterior arc surface to design size, therebetween, can be by exterior arc surface each point（Also can only select and represent a little, such as by measurement
Tooth section center line is measured with the intersection point of exterior arc surface）Adding for exterior arc surface is monitored relative to the distance of straight locating surface II 303
Chinese musical scale is very little, then rotary table, two side faying faces of finish-milling tooth section, with the oblique locating surface 301 of location-plate in special frock
Detect the precision of side faying face processing dimension and the precision of angle（Specifically can be by measuring between side faying face and oblique locating surface
Distance detected, when two faces overlap, then meets processing request）, it is ensured that the chord length of tooth section reference circle, and combine two sides
The angle X between angle and two oblique locating surfaces 301 between face is equal as the satisfactory checking of processing of both sides faying face（This
Text it is described it is equal refer to meeting tolerance, as long as both in the margin of tolerance of design requirement, you can think equal）；
Multiple rotary workbench, using shaping each toothed surface of milling cutter milling to design size, uses during finish-milling toothed surface afterwards
The small multiple feed of cutting output carries out Milling Process, specially：A cutting output is first determined, by rotary table, by tooth section
After all toothed surfaces process one time, then secondary feed is carried out from a cutting output, the size selection according to tooth form needs processing
Number of times, until the complete completion of processing of toothed surface, therebetween, by monitoring tooth top end points to straight locating surface I 302 and straight positioning
The positional precision of toothed surface at the distance between face II 303 monitoring side faying face.
After toothed surface is machined, shaping milling cutter is replaced by drill bit, got out intersegmental mutually for tooth on the faying face of side
Each connecting hole of connection（Abbreviation side each hole of faying face）, then by bit change-over for borer boring side each refined hole of faying face is arrived
Design size.Wherein described refined hole refers to finish and dimension precision requirement hole all higher in design requirement, according to figure
Paper mark is determined.
By step 3）After being finished to tooth section, also with following steps：
1）, coloration detection：Dye penetrant inspection detection is carried out to toothed surface, tooth section surface crudy is met design requirement；
2）, remaining hole beyond each hole of offside faying face（It is primarily referred to as being used for and associated part phase when gear ring is installed on inner arc surface
The bolt hole of connection）The step of being rule；
3）, according to step 2）Line drilling tooth section on respective aperture；
4）, the removal tooth upper each Working position of section burr；
5）, to tooth section each critical size carry out accuracy detection；
6）, assembling：By institute, with teeth section puts together, the side faying face alignment of two neighboring tooth section, is tied by side using bolt
Connecting hole on conjunction face is fixedly connected 7）, check the size of tooth pitch at gear compound graduation circular diameter and side faying face, accord with it
Close design requirement.
Embodiment：
Below with external diameter（Tip diameter）To describe the present invention as a example by the bull gear of 8000mm in detail, the modulus of the bull gear is
40, the number of teeth is 198, material selection ZG42CrMo.
The bull gear is divided into 16 sections carries out manufacture processing, wherein 13 sections, in each tooth section between two side faying faces
Angle is 21.8182 degree（Each tooth 12 teeth of section）, in addition the angle in 3 sections of each teeth section between two side faying faces be
25.4545 degree（Each tooth 14 teeth of section）.
First by each tooth section blank of requirement casting is segmented, then each tooth section blank is machined, will finally added
It is the bull gear of 8000mm that the good 16 teeth section of work links together and is made external diameter.Because the processing technology mistake of each tooth section blank
Journey is identical, is illustrated as a example by wherein one section below.
1st, rule for the first time：Trim line and center line are marked in the outer surface of tooth section blank, it is ensured that each face surplus is uniform, the
The surplus with each finished size more than the minimum 10mm of design size of once ruling is rule, the choosing of the present embodiment surplus
12mm。
When tooth section blank is cast, its structure is prior art, such as Fig. 4（Actual shown in figure added by thick
The tooth section of work, but it is still identical with the structure of tooth section blank）It is shown, mainly there are Inner arc part 501, cylindrical arc portion 503, side
Joint portion 502 and middle interconnecting piece 504 are constituted, and middle interconnecting piece 504 is non-processing part.
2nd, rough mill for the first time：According to clamping positioning method of the prior art in lathe（Can be set using non-numerical control when rough milling
It is standby）On milling is carried out to each face of tooth section, by inner arc surface, exterior arc surface, upper surface, lower surface and two side faying faces and tooth
Shape face is milled into scribing position, and wherein tooth section is adjusted dress twice.
3rd, detect a flaw：After the first time of step 2 rough mills, 100% ultrasonic examination is carried out to tooth each machined surface of section, if
It was found that defect, then remedied by the way of repair welding reprocessing.
4th, it is heat-treated：Tooth section to being conformed to quality requirements by step 3 flaw detection carries out modifier treatment, it is ensured that workpiece machine
Tool performance, the modifier treatment in this step is using the Technology for Heating Processing for being adapted to ZG42CrMo in the prior art, and this place is no longer detailed
State.
5th, shot-peening：Tooth section after being heat-treated to step 4 carries out conventional bead with scale removal, then in tooth section
Primed on non-processing face as overcoat, this step bead is also adopted by routine techniques.
6th, rule for second：With first time line content it is identical, simply surplus is smaller, the present embodiment according to 5mm surplus
Rule, each face surplus is uniform.
7th, rough mill for the second time：Dress is adjusted to press line milling each machined surface twice, unilateral each made allowance is not less than after the completion of milling
5mm。
8th, detect a flaw for second：Each face after being processed to step 7 carries out 100% ultrasonic examination again, such as defective using benefit
Weldering reprocessing is remedied, it is ensured that each face quality meets design requirement.
9th, third time is rule：Camber line content is identical twice with preceding, it is ensured that each face surplus is uniform；During third time is rule, tooth section
Two end faces and inner arc surface rule according to design size, that is, rule balance of zero, remaining each face line is balance of
3mm, subsequently into next step.
10th, half finish-milling：Finish-milling both ends of the surface and inner arc surface to design size, by line two side faying face allowances of milling
3mm, exterior arc surface allowance 3mm, each toothed surface allowance 3mm.
11st, finish-milling：Special frock is placed on the workbench of digital-control boring-milling machine, after centering handle is tight；By tooth section according to above-mentioned
Step 3）Requirement be placed in special frock clamp.
Finish-milling exterior arc surface therebetween, is monitored cylindrical to design size by the distance relative to straight locating surface II 303 first
The processing dimension of cambered surface, then rotary table, two side faying faces of finish-milling tooth section, are determined with the oblique of location-plate in special frock
The precision of the detection side faying face processing dimension of plane 301 and the precision of angle, it is ensured that the chord length of tooth section reference circle, and make two sides
Angle between faying face is equal with the angle X between two oblique locating surfaces 301；
Multiple rotary workbench, uses shaping milling cutter afterwards（Special flank of tooth milling cutter mill teeth, special tooth root milling cutter processing can be used
Tooth root）Each toothed surface of milling carries out Milling Process, specifically during finish-milling toothed surface to design size using the multiple feed of small cutting output
For：First determine a cutting output, by rotary table, after the upper all toothed surfaces of tooth section are processed into one time, then cut from one
The amount of cutting carries out secondary feed, and the size selection according to tooth form needs the number of times of processing, until the complete completion of processing of toothed surface.This step
Revolution in rapid using workbench is indexed, and angle does not add up when per tooth is indexed, complete using the angle of the per tooth for directly calculating
Into the processing of tooth section tooth form, therebetween by monitor tooth top end points to straight locating surface I 302 and directly between locating surface II 303 away from
The positional precision of toothed surface away from face is closed from monitoring side.After toothed surface is machined, shaping milling cutter is replaced by drill bit, gets out side
It is used for each connecting hole of the intersegmental interconnection of tooth on faying face（Abbreviation side each hole of faying face）, then be borer by bit change-over
The corresponding each refined hole of boring is to design size
12）, coloration detection：Dye penetrant inspection detection is carried out to toothed surface, tooth section surface crudy is met design requirement；
13）, rule for the bolt hole that is connected with associated part when installed on inner arc surface gear ring to referring to；
14）, according to step 13）Line drilling tooth section on respective aperture；
15）, the removal tooth upper each Working position of section burr；
16）, using three-coordinates measuring machine to tooth section each critical size（The reference diameter of gear, tooth two side faying faces of section
Angle, tooth pitch of angle etc.）Accuracy detection is carried out, if there is deviation to be modified, it is met design requirement.
17）, assembling：16 tooth sections are put together, the side faying face alignment of two neighboring tooth section is passed through using bolt
Connecting hole on the faying face of side is fixed connection；
18）, check the size of tooth pitch at gear compound graduation circular diameter and side faying face, comply with design requirement.
Non- detailed portion is prior art herein.
Claims (4)
1. a kind of segmental machining method of bull gear, wherein described bull gear refers to gear ring of the reference diameter more than 6 meters,
More than 4, described processing method comprises the following steps the number of bull gear segmentation：
One）, to tooth section need processing each face carry out rough milling, rough mill out each tooth form；
Two）, to tooth section two end faces and intrados carry out being finish-machined to design size；
Three）, using the digital-control boring-milling machine with rotary table to tooth section tooth form and cylindrical and side faying face finish；
It is characterized in that：Step 3）Including the step being clamped in tooth section positioning using special frock on rotary table, wherein
Described special frock includes one piece of rectangular base plate（1）, in base plate（1）The upper position near length direction two ends is solid respectively
Surely it is provided with a cushion block（2）, an alignment pin is respectively equipped with two cushion blocks（4）, two alignment pins are positioned at base plate（1）Width
The homonymy in direction；Cushion block（2）Middle part be provided with screw mounting hole（201）, with alignment pin on cushion block（4）It is opposite at one end
The other end is respectively equipped with the technology groove passed through for milling cutter（202）；In base plate（1）The two ends of length direction further respectively have one
The step of L-shaped, the side long of L-shaped and base plate（1）Width it is parallel, the short side of L-shaped is in base plate（1）Position on width
Put and alignment pin（4）Residing side is consistent, and dismountable stationary positioned plate is provided with step（3）, the location-plate（3）
Upper surface be no more than cushion block（2）Upper surface；Two pieces of location-plates（3）It is symmetrical arranged, and location-plate is towards floor length direction
Outside side is provided with oblique locating surface（301）, setting between angle X and the tooth two side faying faces of section between two oblique locating surfaces
Meter angle is equal；Location-plate is provided with the straight locating surface for determining tooth proportions precision towards the side outside floor length direction
Ⅰ（302）, location-plate is provided with the straight positioning of the dimensional accuracy for determining exterior arc surface towards the side outside baseplate width direction
Face II（303）；After step 2 carries out being finish-machined to design size to two end faces and inner arc surface of tooth section, make tooth section
One end face and cushion block（2）Is in contact and tooth section is placed on cushion block（2）On, while making the inner arc surface of tooth section be close to two positioning
Pin（4）, and the arc median plane of tooth section is coincided with the face of dividing equally of two oblique locating surface angles, finally using screw by setting
Through hole and cushion block in tooth section（2）On screw mounting hole（201）By tooth section（5）It is fixed on cushion block（2）On.
2. the segmental machining method of a kind of bull gear according to claim 1, it is characterised in that：Step 3）In, to tooth section
Toothed surface and the finishing of exterior arc surface and side faying face include finish-milling exterior arc surface to design size, therebetween, by positioning
Straight locating surface II of the plate in width side（303）, the dimensional accuracy of measurement monitoring exterior arc surface, then rotary table, smart
Two side faying faces of mill teeth section, the precision of side faying face processing dimension is detected with the oblique locating surface of location-plate in special frock,
Make the angle X between the angle between two side faying faces and two oblique locating surfaces equal；Multiple rotary workbench, uses afterwards
Each toothed surface of milling cutter milling is molded to design size, therebetween, by measuring tooth top to straight locating surface I（302）, straight locating surface II
（303）Distance and the measurement of transverse tooth thickness monitor per tooth positional precision, small cutting output multiple feed is used during finish-milling toothed surface
Milling Process is carried out, after toothed surface is machined, shaping milling cutter drill bit is replaced by, getting out on the faying face of side each is used to connect
The hole for connecing, then by bit change-over be on borer boring faying face each refined hole to design size.
3. the segmental machining method of a kind of bull gear according to claim 1, it is characterised in that：Step one）Described is thick
Milling Machining includes rough milling for the first time and rough milling for the second time, before first time rough mills, also with a cast blank to tooth section
The step of marking trim line and center line, this is scribed ss line for the first time；Described first time rough mills specially：To the layout line
Two side faying faces, two end faces, inner arc surface, exterior arc surface and the toothed surfaces of milling tooth section, after rough milling for the first time, tooth section is each
Machined surface reserves larger surplus；First time rough mill with rough mill for the second time between also include following four steps：
1. the step of, each machined surface to tooth section carries out first time ultrasonic examination；
2. the step of, being heat-treated to tooth section；
3. the step of bead, is carried out to tooth section surface；
4., the tooth section after bead is rule again, i.e., second line, this line content is included in tooth section surface
Trim line and center line are marked, line meets each face surplus uniformly, and this line surplus is less than surplus of line for the first time；
By after aforementioned four step, then being rough milled for the second time to tooth section to the layout line；
After rough milling for the second time, second ultrasonic examination is carried out to tooth each machined surface of section, then carry out third time line, third time
In line, two end faces and inner arc surface of tooth section are rule according to design size, that is, rule balance of zero, remaining each face stroke
Line surplus is smaller than second line surplus, but is not zero；Subsequently into next step 2）.
4. the segmental machining method of a kind of bull gear according to claim 1, it is characterised in that：By step 3）To tooth
After Duan Jinhang finishing, also with following steps：
1）, coloration detection：Dye penetrant inspection detection is carried out to the flank of tooth, it is ensured that tooth section surface crudy meets design requirement, if any
Defect, is remedied using repair welding reprocessing；
2）, remaining hole beyond each hole of offside faying face rule；
3）, according to step 2）Line drilling tooth section on respective aperture；
4）, the removal tooth upper each Working position of section burr；
5）, to tooth section each critical size carry out accuracy detection；
6）, assembling：By institute, with teeth section puts together, the faying face alignment of two neighboring tooth section, is combined by side using bolt
Connection holes on face are fixedly connected；
7）, check the size of tooth pitch at gear compound graduation circular diameter and faying face, comply with design requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611074171.4A CN106736317B (en) | 2016-11-29 | 2016-11-29 | A kind of segmental machining method of bull gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611074171.4A CN106736317B (en) | 2016-11-29 | 2016-11-29 | A kind of segmental machining method of bull gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106736317A true CN106736317A (en) | 2017-05-31 |
| CN106736317B CN106736317B (en) | 2018-08-21 |
Family
ID=58898624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611074171.4A Active CN106736317B (en) | 2016-11-29 | 2016-11-29 | A kind of segmental machining method of bull gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106736317B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110193708A (en) * | 2019-05-31 | 2019-09-03 | 中国电子科技集团公司第三十九研究所 | Super-large diameter multisection type ring gear machining method |
| CN110977342A (en) * | 2019-11-29 | 2020-04-10 | 安庆中船动力配套有限公司 | Split machining process for connecting rod |
| CN111185639A (en) * | 2020-03-27 | 2020-05-22 | 洛阳新强联回转支承股份有限公司 | Machining method for gear milling of gear ring of super-huge slewing bearing |
| CN112548507A (en) * | 2020-12-02 | 2021-03-26 | 重庆齿轮箱有限责任公司 | Method for processing carburizing and quenching large internal gear ring |
| CN112935727A (en) * | 2021-02-05 | 2021-06-11 | 一重集团(黑龙江)重工有限公司 | Split type lower ring machining method |
| CN113398806A (en) * | 2020-03-17 | 2021-09-17 | 深圳迎凯生物科技有限公司 | Blending device |
| CN114406621A (en) * | 2022-02-21 | 2022-04-29 | 成都航天精诚科技有限公司 | Manufacturing and detecting method of combined large-size high-precision strip-shaped workpiece |
| CN114505658A (en) * | 2022-02-23 | 2022-05-17 | 中实洛阳重型机械有限公司 | Machining method of sectional gear ring |
| CN114505719A (en) * | 2022-02-21 | 2022-05-17 | 安徽天地通重型机械有限公司 | Method for processing rotary kiln large gear ring casting blank |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3304100B2 (en) * | 1996-10-30 | 2002-07-22 | 株式会社カネミツ | Manufacturing method of sheet metal gear |
| JP2002346846A (en) * | 2001-05-29 | 2002-12-04 | Chuniti Seiko Kk | Method for manufacturing friction plate supporting ring for automatic transmission |
| CN201300264Y (en) * | 2008-11-27 | 2009-09-02 | 天水星火机床有限责任公司 | Chock tests for split adjustable gear hobs |
| CN103464991A (en) * | 2013-09-18 | 2013-12-25 | 江国辉 | Gear ring machining process |
| CN103949854A (en) * | 2014-04-23 | 2014-07-30 | 马鞍山马钢表面工程技术有限公司 | Subsection machining method for large-diameter arc toothed plate |
-
2016
- 2016-11-29 CN CN201611074171.4A patent/CN106736317B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3304100B2 (en) * | 1996-10-30 | 2002-07-22 | 株式会社カネミツ | Manufacturing method of sheet metal gear |
| JP2002346846A (en) * | 2001-05-29 | 2002-12-04 | Chuniti Seiko Kk | Method for manufacturing friction plate supporting ring for automatic transmission |
| CN201300264Y (en) * | 2008-11-27 | 2009-09-02 | 天水星火机床有限责任公司 | Chock tests for split adjustable gear hobs |
| CN103464991A (en) * | 2013-09-18 | 2013-12-25 | 江国辉 | Gear ring machining process |
| CN103949854A (en) * | 2014-04-23 | 2014-07-30 | 马鞍山马钢表面工程技术有限公司 | Subsection machining method for large-diameter arc toothed plate |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110193708A (en) * | 2019-05-31 | 2019-09-03 | 中国电子科技集团公司第三十九研究所 | Super-large diameter multisection type ring gear machining method |
| CN110193708B (en) * | 2019-05-31 | 2020-11-10 | 中国电子科技集团公司第三十九研究所 | Method for machining ultra-large-diameter multi-section type gear ring |
| CN110977342A (en) * | 2019-11-29 | 2020-04-10 | 安庆中船动力配套有限公司 | Split machining process for connecting rod |
| CN110977342B (en) * | 2019-11-29 | 2021-08-03 | 安庆中船动力配套有限公司 | Split machining process for connecting rod |
| CN113398806A (en) * | 2020-03-17 | 2021-09-17 | 深圳迎凯生物科技有限公司 | Blending device |
| CN111185639A (en) * | 2020-03-27 | 2020-05-22 | 洛阳新强联回转支承股份有限公司 | Machining method for gear milling of gear ring of super-huge slewing bearing |
| CN112548507A (en) * | 2020-12-02 | 2021-03-26 | 重庆齿轮箱有限责任公司 | Method for processing carburizing and quenching large internal gear ring |
| CN112548507B (en) * | 2020-12-02 | 2021-11-02 | 重庆齿轮箱有限责任公司 | Method for processing carburizing and quenching large internal gear ring |
| CN112935727A (en) * | 2021-02-05 | 2021-06-11 | 一重集团(黑龙江)重工有限公司 | Split type lower ring machining method |
| CN114406621A (en) * | 2022-02-21 | 2022-04-29 | 成都航天精诚科技有限公司 | Manufacturing and detecting method of combined large-size high-precision strip-shaped workpiece |
| CN114505719A (en) * | 2022-02-21 | 2022-05-17 | 安徽天地通重型机械有限公司 | Method for processing rotary kiln large gear ring casting blank |
| CN114505658A (en) * | 2022-02-23 | 2022-05-17 | 中实洛阳重型机械有限公司 | Machining method of sectional gear ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106736317B (en) | 2018-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106736317B (en) | A kind of segmental machining method of bull gear | |
| CN107378497B (en) | Processing and detecting system and method for three-section type large-inclination-angle inclined box body | |
| CN109551450B (en) | Complex-structure precision casting marking inspection device and method | |
| CN106493399A (en) | A kind of method that horizontal jig boring machine rotates 180 ° of processing precise parts | |
| CN105750601A (en) | Machining method for improving form and position precision of large gearbox body device | |
| CN112077546A (en) | Method for processing crown-free die forging palm tree blade root type blade | |
| CN113211018B (en) | Machining process of ultra-long large-diameter thin-wall steel pipe | |
| CN105328398B (en) | A kind of processing method of the valve cylinder faying face of large-sized grinder three | |
| CN111037008A (en) | Method for manufacturing fixed-start-point rectangular internal thread | |
| CN107175359B (en) | X-shaped slide block guide rail processing method | |
| CN101391358A (en) | Method for processing welding frame device using bolt, pun bush as positioning reference | |
| CN108213960B (en) | Annular cooler revolving frame machining tool and annular cooler revolving frame machining method | |
| CN105537889A (en) | Synchronous machining method of left and right eccentric gears | |
| CN114425683A (en) | Method for machining taper pin hole | |
| CN211361610U (en) | Tool setting tool | |
| CN111644814B (en) | Wind power rotor machining method | |
| CN210523854U (en) | Roll arm boring machining tool | |
| CN206263381U (en) | A kind of bull gear segmental machining frock | |
| CN106736268A (en) | The processing method for cutting box-like 180 ° of arched girders | |
| CN109079550B (en) | Method for setting fixture to quickly set zero position | |
| CN112222482A (en) | Special machining clamp for crank parts | |
| CN202752879U (en) | Sliding valve tool of double screw rod compressor | |
| CN102909580B (en) | Sliding valve tool for twin-screw compressor and sliding valve processing method | |
| CN107186434B (en) | A kind of main cable saddle of suspension bridge numerical control boring and milling back chipping method | |
| CN213765106U (en) | Machining center rotation center test piece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20170531 Assignee: Luoyang Zhichuan New Material Technology Co.,Ltd. Assignor: LUOYANG INSTITUTE OF SCIENCE AND TECHNOLOGY Contract record no.: X2023980046318 Denomination of invention: A segmented machining method for large gear rings Granted publication date: 20180821 License type: Common License Record date: 20231109 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20170531 Assignee: Jiewei Precision Manufacturing (Luoyang) Co.,Ltd. Assignor: LUOYANG INSTITUTE OF SCIENCE AND TECHNOLOGY Contract record no.: X2024980001593 Denomination of invention: A segmented machining method for large gear rings Granted publication date: 20180821 License type: Common License Record date: 20240130 Application publication date: 20170531 Assignee: Luoyang Sufeng Spindle Technology Co.,Ltd. Assignor: LUOYANG INSTITUTE OF SCIENCE AND TECHNOLOGY Contract record no.: X2024980001570 Denomination of invention: A segmented machining method for large gear rings Granted publication date: 20180821 License type: Common License Record date: 20240130 Application publication date: 20170531 Assignee: Luoyang Hengrui Measurement & Control Technology Co.,Ltd. Assignor: LUOYANG INSTITUTE OF SCIENCE AND TECHNOLOGY Contract record no.: X2024980001560 Denomination of invention: A segmented machining method for large gear rings Granted publication date: 20180821 License type: Common License Record date: 20240130 |
|
| EE01 | Entry into force of recordation of patent licensing contract |