CN206263381U - A kind of bull gear segmental machining frock - Google Patents

A kind of bull gear segmental machining frock Download PDF

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Publication number
CN206263381U
CN206263381U CN201621292488.0U CN201621292488U CN206263381U CN 206263381 U CN206263381 U CN 206263381U CN 201621292488 U CN201621292488 U CN 201621292488U CN 206263381 U CN206263381 U CN 206263381U
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CN
China
Prior art keywords
plate
location
cushion block
base plate
tooth section
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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.)
Expired - Fee Related
Application number
CN201621292488.0U
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Chinese (zh)
Inventor
贾利晓
闫红彦
常云朋
贾平
穆欣
张庆丰
宋联美
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Luoyang Institute of Science and Technology
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Luoyang Institute of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to CN201621292488.0U priority Critical patent/CN206263381U/en
Application granted granted Critical
Publication of CN206263381U publication Critical patent/CN206263381U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of bull gear segmental machining frock, including one piece of rectangular base plate, position near length direction two ends on base plate is fixed with an end cushion block for supporting tooth section respectively, and an alignment pin is respectively equipped with two cushion blocks, and two alignment pins are located at the homonymy in baseplate width direction;Be provided with screw mounting hole in the middle part of the cushion block of end, on cushion block with alignment pin the other end opposite at one end be respectively equipped with the technology groove that passes through for milling cutter;A step for L-shaped is further respectively had at the two ends in floor length direction, is detachably fixed on step and is provided with location-plate, the upper surface of the upper surface no more than end cushion block of location-plate;Two pieces of location-plates are symmetrical arranged, and each location-plate is equipped with an oblique locating surface and two straight locating surfaces.The finishing to tooth section on the digital-control boring-milling machine without automatic measurement and cutter automatic compensation function can be realized, and can reduces cost.

Description

A kind of bull gear segmental machining frock
Technical field
The utility model is related to ring gear machining technical field, more particularly, to a kind of bull gear segmental machining frock.
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.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of bull gear segmental machining frock, using this work Dress may be implemented in the essence to bull gear segmentation on the general NC boring and milling machine without automatic measurement and cutter automatic compensation function Processing, can not only ensure machining accuracy but also processing cost is low.
The technical scheme that in order to solve the above-mentioned technical problem the utility model is used is:A kind of bull gear segmental machining is used Frock, including one piece of rectangular base plate, the position near length direction two ends on base plate is fixed with one respectively to be used for The end cushion block of support tooth section, is respectively equipped with an alignment pin on two cushion blocks, and two alignment pins are located at baseplate width direction Homonymy;The screw mounting hole for fixing tooth section is provided with the middle part of the cushion block of end, with alignment pin institute phase at one end on cushion block The anti-other end is respectively equipped with the technology groove passed through for milling cutter;A L-shaped is further respectively had at the two ends in floor length direction Step, the side long of L-shaped is parallel with the width of base plate, the position and positioning of the short side of L-shaped on baseplate width direction The residing side of pin is consistent, is detachably fixed on step and is provided with location-plate, and the upper surface of the location-plate is no more than end The upper surface of cushion block;Two pieces of location-plates are symmetrical arranged, and location-plate is provided with locating surface towards the side outside floor length direction, Angle X between two locating surfaces is equal with the design angle between two side faying faces of tooth section.
Further, the location-plate is provided with for determining tooth proportions precision towards the side outside floor length direction Straight locating surface I, location-plate is provided with the dimensional accuracy for determining exterior arc surface towards the side outside baseplate width direction Straight locating surface II.
Further, a middle spacer, structure and the end pad of middle spacer are additionally provided between two end cushion blocks Block is identical.
Further, described location-plate is fixed by screws on the step of base plate, and the head of screw is not higher than positioning The top surface of plate.
Beneficial effect:
Using the utility model, not only may be implemented in the positioning on the rotary table of digital-control boring-milling machine to tooth section and clamp, And can realize combining the angle between tooth two side faying faces of section and each side by oblique locating surface in process Face dimensional accuracy carries out detection monitoring;Monitoring external arc can be measured by location-plate in the straight locating surface II 303 of width side The dimensional accuracy in face;Can also be monitored to the measurement of straight locating surface I, the distance of straight locating surface II and transverse tooth thickness by measuring tooth top Per tooth positional precision ensure that machining accuracy so that the overall machining accuracy for improving bull gear, and with use digital control processing Finishing tooth section in center is compared, and cost can be much lower.
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, end cushion block, 201, screw mounting hole, 202, technology groove, 3, location-plate, 301, oblique positioning Face, 302, straight locating surface I, 303, straight locating surface II, 4, alignment pin, 5, tooth section, 6, middle spacer.
Specific embodiment
Further specific detailed description is done to the utility model with reference to the accompanying drawings and detailed description.
As illustrated, one piece of rectangular base plate 1, near the position at length direction two ends, fixation sets respectively on base plate 1 There is an end cushion block 2(If gear ring to be processed is than larger, tooth section arc is long, can be between two end cushion blocks 2 A middle spacer 6 is further added by, referring to accompanying drawing, as in present embodiment), cushion block 2 can with welding mode be fixed on On base plate 1.
An alignment pin 4 is respectively equipped with two end cushion blocks 2, two alignment pins are located at the same of the width of base plate 1 Side;The middle part of end cushion block 2 is provided with the screw mounting hole 201 for fixing tooth section, with the place of alignment pin 4 on end cushion block 2 The opposite other end in one end is respectively equipped with the technology groove 202 passed through for milling cutter.
A step for L-shaped, the side long of L-shaped and the width side of base plate 1 are further respectively had at the two ends of the length direction of base plate 1 To parallel, the position of the short side of L-shaped on the width of base plate 1 is consistent with the side residing for alignment pin 4, can on step Dismounting is fixed with location-plate 3, the upper surface of the upper surface no more than end cushion block 2 of the location-plate 3, preferably with base plate 1 The upper surface of corresponding end-faces flush or a little higher than base plate 1(Described in this paragraph " on " it turn 90 degrees rear gained with Fig. 3 dextrorotations Accompanying drawing in itself " on " it is consistent).
Described location-plate 3 can be fixed by screws on the step of base plate 1, and the head of screw is not higher than location-plate 3 Top surface(I.e. towards the one side of workpiece tooth section).
Two pieces of location-plates 3 are symmetrical arranged, and location-plate 3 is towards outside floor length direction(I.e. back to floor length direction Respective end)Side be provided with locating surface, setting between two side faying faces of angle X between two locating surfaces and tooth section 5 Meter angle is equal.
The utility model is used when tooth section is finished.
, it is necessary in lathe before being finished to tooth section using the utility model(Common boring and milling machine)To tooth section Two end faces and inner arc surface carry out being finish-machined to design size, as positioning reference plane.
Then an end face of tooth section 5 is in contact with end cushion block 2 and the support of tooth section 5 is placed on end cushion block 2, together When the inner arc surface of tooth section 5 is close to two alignment pins 4, and make the arc median plane of tooth section 5 and dividing equally for two locating surface angles Face coincides, afterwards using screw by the screw mounting hole 201 that is located on through hole and the end cushion block 2 in tooth section 5 by tooth section 5 It is fixed on end cushion block 2 and middle spacer 6.
It is fixed on the rotary table of digital-control boring-milling machine when this frock is used.
Finish-milling exterior arc surface first to design size, therebetween, can by location-plate width side straight locating surface II 303, measurement monitors the dimensional accuracy of exterior arc surface, then rotary table, two side faying faces of finish-milling tooth section, with special work The locating surface of location-plate detects the precision of side faying face processing dimension in dress, makes the angle and two positioning between two side faying faces Angle X between face is equal(It is described herein it is equal refer to meeting tolerance, as long as both design requirement the margin of tolerance It is interior, you can to think equal);Multiple rotary workbench afterwards, using shaping each toothed surface of milling cutter milling to design size, therebetween Per tooth position can be monitored to the measurement of straight locating surface I 302, the distance of straight locating surface II 303 and transverse tooth thickness by measuring tooth top Precision, carries out Milling Process until the complete completion of processing of toothed surface, then during finish-milling toothed surface using the multiple feed of small cutting output Carry out next process.
When processing tooth section on general NC boring and milling machine using the utility model, returning for digital-control boring-milling machine can be not only utilized Revolving worktable carries out indexing revolution to tooth section, realizes the processing to tooth form, and can be during processing using on top board Locating surface to tooth section two side faying faces between angle carry out detection monitoring, make tooth section two side faying faces between angle Degree meets quality requirement when equal with the angle between two locating surfaces.

Claims (4)

1. a kind of bull gear segmental machining frock, it is characterised in that:Including one piece of rectangular base plate(1), in base plate(1)On One is fixed with respectively for supporting tooth section near the position at length direction two ends(5)End cushion block(2), in two cushion blocks On be respectively equipped with an alignment pin(4), two alignment pins are positioned at base plate(1)The homonymy of width;End cushion block(2)Middle part It is provided with for fixing tooth section(5)Screw mounting hole(201), with alignment pin on cushion block(4)The other end opposite at one end It 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 L-shaped Step, 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 with Alignment pin(4)Residing side is consistent, is detachably fixed on step and is provided with location-plate(3), the location-plate(3)Upper end Face is no more than end cushion block(2)Upper surface;Two pieces of location-plates(3)It is symmetrical arranged, and location-plate is towards outside floor length direction The side in portion is provided with locating surface, the angle X between two locating surfaces and tooth section(5)Two side faying faces between design angle It is equal.
2. a kind of bull gear segmental machining frock according to claim 1, it is characterised in that:The location-plate(3)Court The straight locating surface I for determining tooth proportions precision is provided with to the side outside floor length direction(302), location-plate is the bottom of towards Side outside plate width is provided with the straight locating surface II of the dimensional accuracy for determining exterior arc surface(303).
3. a kind of bull gear segmental machining frock according to claim 1, it is characterised in that:In two end cushion blocks (2)Between be additionally provided with a middle spacer(6), the structure of middle spacer is identical with end cushion block.
4. a kind of bull gear segmental machining frock according to claim 1, it is characterised in that:Described location-plate(3) It is fixed by screws in base plate(1)Step on, the head of screw is not higher than the top surface of location-plate.
CN201621292488.0U 2016-11-29 2016-11-29 A kind of bull gear segmental machining frock Expired - Fee Related CN206263381U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621292488.0U CN206263381U (en) 2016-11-29 2016-11-29 A kind of bull gear segmental machining frock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621292488.0U CN206263381U (en) 2016-11-29 2016-11-29 A kind of bull gear segmental machining frock

Publications (1)

Publication Number Publication Date
CN206263381U true CN206263381U (en) 2017-06-20

Family

ID=59042253

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621292488.0U Expired - Fee Related CN206263381U (en) 2016-11-29 2016-11-29 A kind of bull gear segmental machining frock

Country Status (1)

Country Link
CN (1) CN206263381U (en)

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170620

Termination date: 20191129

CF01 Termination of patent right due to non-payment of annual fee