CN110321370A - The tool holder matching method of tool holder matching method and gear-hobbing machine based on RBR - Google Patents
The tool holder matching method of tool holder matching method and gear-hobbing machine based on RBR Download PDFInfo
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Abstract
The tool holder matching method of the invention discloses a kind of tool holder matching method and gear-hobbing machine based on RBR establishes apolegamy rule base；Extract the fact that related processing tasks information is Tool preparing condition a；The conclusion inferred with the Tool preparing rule to be matched by condition part and fact condition a is interim cutter collection；Interim cutter integrates with the intersection of cutter resource collection as cutter collection H；It extracts cutter and integrates the fact that the clamping information of H and machining tool is knife bar apolegamy condition b, the conclusion inferred with the knife bar apolegamy rule to be matched by condition part and fact condition b is interim knife bar collection；Interim knife bar integrates with the intersection of knife bar resource collection as knife bar collection B, updates cutter collection H according to knife bar collection B；Extracting clamping workpiece information is the fact that fixture is matched condition c, and the conclusion inferred using the fixture apolegamy rule to be matched by condition part and fact condition c is temporary fixture collection；Temporary fixture integrates with the intersection of fixture resource collection as fixture collection F；Tool holder set T={ H B F }.
Description
Technical field
The invention belongs to be machined manufacturing technology field more particularly to a kind of matching method of tool holder.
Background technique
Gear has the characteristics that be widely used as the component of gear train, and in wind-power electricity generation, aerospace, vapour
Key effect is played in the mechanical equipments such as vehicle and shield machine；The superiority and inferiority of its kinetic characteristics will directly affect the work of equipment complete machine
Performance.For the processing of gear, gear hobbing at present is the most widely used gear cutting consideration in home and abroad, some country's gear-hobbing machines
Owning amount accounts for about the 45% to 50% of all gear machine total amounts.Therefore, gear hobbing lathe is as typical a kind of in producing lathes,
Great influence, the especially reasonable selection of gear-hobbing machine tool holder are machined with to the manufacture of gear, in the process of gear
In have great importance.However, the apolegamy of country's gear-hobbing machine tool holder at present is still within and relies on technologist according to itself
Experience carries out matched stage, there are problems that heavy workload, low efficiency and processing quality it is difficult to predict and control；Therefore, sharp
Strengthen the decision process in manufacture with the strength of data and computational intelligence in manufacturing process, realizes gear-hobbing machine tool holder
Intelligent Matching helps to match the tooling resource in manufacture, and to tool holder is rationally utilized, raising processing efficiency and quality have important
Meaning.
Summary of the invention
In view of the above shortcomings of the prior art, the present invention provides a kind of tool holder matching method based on RBR, solves existing
Fail to combine the actual conditions of workshop tool holder resource by cutter, knife bar and fixture in technology while being combined the technology of apolegamy
Problem.
In order to solve the above technical problems, technical scheme is as follows: a kind of tool holder matching method based on RBR,
The following steps are included:
Step 1: determine the apolegamy requirement of cutter, knife bar and fixture respectively according to process principle and actual processing, and
It is required to establish apolegamy rule base according to apolegamy；It matches in rule base and is selected comprising Tool preparing rule, knife bar apolegamy rule with fixture
With rule；The form that every kind of apolegamy rule is all made of production rule is indicated, and includes number of regulation, condition part and knot
By part；
Step 2: obtaining processing tasks information and practical tool holder resource collection；The processing tasks information is joined comprising workpiece
Number information, processing technology information and clamping information；The processing technology information is coarse comprising workpiece accuracy grade, workpiece surface
Degree, process and machining tool information, machining tool information include the clamping information of machining tool；The clamping information includes workpiece
Clamping workpiece information including clamping type and clamping workpiece size；The practical tool holder resource information includes cutter resource set
Conjunction, knife bar resource collection and fixture resource collection；
Step 3: extract workpiece parameter information with processing technology information as Cutting Tool Preparing the fact condition a and be sent into
In database；
Step 4: the condition part in Tool preparing rule is extracted, and is compared with the true condition a in database, it will
The conclusion that the Tool preparing rule to be matched by condition part and fact condition a is inferred is as interim cutter collection；
Step 5: cutter resource collection of the interim cutter collection in practical tool holder resource information being compared, judgement is interim
Whether cutter integrates with the intersection of cutter resource collection as empty set；If so, issuing purchase request, and terminate to match process；If it is not,
Using the intersection of interim cutter collection and cutter resource collection as cutter collection H, it can be obtained according to cutter collection H and be existed including formal parameter
Interior cutter parameters information, and enter step 6:
Step 6: extracting the dress of the formal parameter information of each cutter and the machining tool in processing tasks information in cutter collection H
The fact that folder information matches problem as knife bar condition b is simultaneously sent into database；
Step 7: the condition part in knife bar apolegamy rule is extracted, and is compared with the true condition b in database, it will
The conclusion that the knife bar apolegamy rule to be matched by condition part and fact condition b is inferred is as interim knife bar collection；
Step 8: knife bar resource collection of the interim knife bar collection in practical tool holder resource information being compared, judgement is interim
Whether knife bar integrates with the intersection of knife bar resource collection as empty set；If so, issuing purchase request, and terminate to match process；If it is not,
Using the intersection of interim knife bar collection and knife bar resource collection as knife bar collection B, and enter step 9；
Step 9: concentrating the supplementary set for obtaining candidate knife bar collection in interim knife bar, cutter collection H is updated according to the supplementary set: from knife
Cutter collection corresponding with the supplementary set is weeded out in tool collection H；
Step 10: extracting the fact that the clamping workpiece information in processing tasks information matches problem as fixture condition c simultaneously
It is sent into database；
Step 11: the condition part in fixture apolegamy rule is extracted, and is compared with the true condition c in database,
The conclusion that the fixture apolegamy rule to be matched by condition part and fact condition c is inferred is as temporary fixture collection；
Step 12: fixture resource collection of the temporary fixture collection in practical tool holder resource information being compared, judgement is faced
When fixture integrate with the intersection of fixture resource collection whether as empty set；If so, issuing purchase request, and terminate to match process；If
It is no, using the intersection of temporary fixture collection and fixture resource collection as fixture collection F, and enter step 13；
Step 13: according to updated cutter collection H, knife bar collection B and fixture collection F, calculating tool holder set T:T={ H B
F}；Using tool holder set T as the tool holder matingplan for meeting processing tasks requirement, wherein element in set H and set B
There are mapping relations.
Further, by the Tool preparing for meeting true condition a rule, meet true condition b knife bar apolegamy rule with
Meet the interim rules concentration that the fixture apolegamy of true condition c is maintained in database；When progress step 4, step 7 or step
When 11, first determine whether interim rules concentrate whether have the apolegamy rule for meeting corresponding true condition, if so, in interim rules collection
The middle condition part for extracting apolegamy rule, and compared with the true condition row in database；If it is not, then being extracted from apolegamy rule base
The condition part of rule is matched, and compared with the true condition row in database.
Further, Tool preparing requires, knife bar matches requirement and fixture apolegamy requirement is as follows respectively:
Tool preparing requirement: while meeting product requirement RHm, technique require RHcR is required with clampingHf；Product requires RHmTable
Show for the angle of gear product, when the gear finished product processed reaches respective standard, the apolegamy requirement of process tool information；
Technique requires RHcIt indicates for the angle of processing technology, when the gear finished product processed reaches respective standard, process tool letter
The apolegamy requirement of breath；Clamping requires RHfThe clamping met needed for cutter work in-process requirement is indicated, including cutter and knife bar
Between clamping；
Knife bar apolegamy requires: meeting knife bar clamping requirement RBf, clamping requirement RBfIndicate satisfaction needed for knife bar work in-process
Clamping requirement, including the clamping between the clamping and knife bar and lathe between knife bar and cutter；
Fixture apolegamy requires: meeting fixture clamping requirement RFf, clamping requirement RFfIndicate satisfaction needed for fixture work in-process
Clamping requirement, including the clamping between fixture and workpiece.
The present invention also provides a kind of tool holder matching methods of gear-hobbing machine, using as described in the present invention based on the knife of RBR
Fixture matching method；Cutter is hobboing cutter, the information of hobboing cutter include tooth profile parameter information, tooth shape parameter information, formal parameter information,
Structural parameters information, processing technology information and coating material information；Workpieces processing is gear or gear shaft；Workpiece parameter packet
Include normal module, normal pressure angle, helical angle, addendum coefficient, tip clearance coefficient and rotation direction.
Compared with prior art, the invention has the following advantages:
1, the present invention is required according to the product of processing tasks, technique requires and clamping requires to filter out to be able to satisfy to process and appoint
The tool holder set for primary demand of being engaged in provides reliable preferred scope for the apolegamy of subsequent tool holder；Tool holder set is cutter, knife
The combination selection of bar and fixture only carries out the apolegamy of cutter, and error process combination workshop tool holder different from the prior art
The actual conditions of resource, selected cutter, knife bar and fixture out is actually capable of providing, practical.
2, the matching method has certain self-organization, it is ensured that in the process for carrying out tool holder apolegamy for processing tasks
In, without extraneous manual intervention, the demand of tool holder is matched for processing tasks with being able to satisfy Rapid Science, and can collect
At into system, to break the traditional artificial selection's mode of gear-hobbing machine tool holder, the intelligence of gear-hobbing machine tool holder apolegamy is realized
Change.
3, the present invention is based on rule-based reasoning (RBR) to construct gear-hobbing machine tool holder mineral processing model, realizes to the preliminary of tool holder
Apolegamy will be cascaded the problem of related fields with the form of answer rule in the process, and to these Heuristicses
The expression formalized has knowledge form expression simple, and inferential capability is strong and the advantages of being easily achieved.
Detailed description of the invention
The flow chart of tool holder matching method of the Fig. 1 based on RBR；
Fig. 2 is representation of the tool holder set T in three dimensional coordinate space.
Specific embodiment
Refering to what is shown in Fig. 1, a kind of tool holder matching method based on RBR, which comprises the following steps:
Step 1: determine the apolegamy requirement of cutter, knife bar and fixture respectively according to process principle and actual processing, and
It is required to establish apolegamy rule base according to apolegamy；It matches in rule base and is selected comprising Tool preparing rule, knife bar apolegamy rule with fixture
With rule；The form that every kind of apolegamy rule is all made of production rule is indicated, and includes number of regulation, condition part and knot
By part；
Step 2: obtaining processing tasks information and practical tool holder resource collection；The processing tasks information is joined comprising workpiece
Number information, processing technology information and clamping information；The processing technology information is coarse comprising workpiece accuracy grade, workpiece surface
Degree, process and machining tool information, machining tool information include the clamping information of machining tool；The clamping information includes workpiece
Clamping workpiece information including clamping type and clamping workpiece size；The practical tool holder resource information includes cutter resource set
Conjunction, knife bar resource collection and fixture resource collection；
Step 3: extract workpiece parameter information with processing technology information as Cutting Tool Preparing the fact condition a and be sent into
In database；
Step 4: the condition part in Tool preparing rule is extracted, and is compared with the true condition a in database, it will
The conclusion that the Tool preparing rule to be matched by condition part and fact condition a is inferred is as interim cutter collection；
Step 5: cutter resource collection of the interim cutter collection in practical tool holder resource information being compared, judgement is interim
Whether cutter integrates with the intersection of cutter resource collection as empty set；If so, issuing purchase request, and terminate to match process；If it is not,
Using the intersection of interim cutter collection and cutter resource collection as cutter collection H, it can be obtained according to cutter collection H and be existed including formal parameter
Interior cutter parameters information, and enter step 6:
Step 6: extracting the dress of the formal parameter information of each cutter and the machining tool in processing tasks information in cutter collection H
The fact that folder information matches problem as knife bar condition b is simultaneously sent into database；
Step 7: the condition part in knife bar apolegamy rule is extracted, and is compared with the true condition b in database, it will
The conclusion that the knife bar apolegamy rule to be matched by condition part and fact condition b is inferred is as interim knife bar collection；
Step 8: knife bar resource collection of the interim knife bar collection in practical tool holder resource information being compared, judgement is interim
Whether knife bar integrates with the intersection of knife bar resource collection as empty set；If so, issuing purchase request, and terminate to match process；If it is not,
Using the intersection of interim knife bar collection and knife bar resource collection as knife bar collection B, and enter step 9；
Step 9: concentrating the supplementary set for obtaining candidate knife bar collection in interim knife bar, cutter collection H is updated according to the supplementary set: from knife
Cutter collection corresponding with the supplementary set is weeded out in tool collection H；
Step 10: extracting the fact that the clamping workpiece information in processing tasks information matches problem as fixture condition c simultaneously
It is sent into database；
Step 11: the condition part in fixture apolegamy rule is extracted, and is compared with the true condition c in database,
The conclusion that the fixture apolegamy rule to be matched by condition part and fact condition c is inferred is as temporary fixture collection；
Step 12: fixture resource collection of the temporary fixture collection in practical tool holder resource information being compared, judgement is faced
When fixture integrate with the intersection of fixture resource collection whether as empty set；If so, issuing purchase request, and terminate to match process；If
It is no, using the intersection of temporary fixture collection and fixture resource collection as fixture collection F, and enter step 13；
Step 13: according to updated cutter collection H, knife bar collection B and fixture collection F, calculating tool holder set T:T={ H B
F}；Using tool holder set T as the tool holder matingplan for meeting processing tasks requirement, wherein in cutter collection H and knife bar collection B
Element there are mapping relations.
If set T is not sky, set T is as shown in Figure 2；There are 3 coordinates H, B and F in figure in x-axis, respectively the hobboing cutter of table
Collect H, knife bar collection B and fixture collection F；There is { the H of identical x coordinate with H, B and F1 H2 … Hn}、 {B1 B2 … BmAnd { F1 F2
… FkRespectively indicate the hobboing cutter type screened according to processing tasks, knife bar type and clamp types set；Wherein z-axis table
Show each tool holder type on x/y plane respectively corresponding optional tool holder quantity；Represented by Fig. 2
All tool holders together constitute tool holder set T.
In order to improve selecting efficiency, by the Tool preparing result obtained according to true condition a reasoning, according to true condition b
The knife bar apolegamy result that reasoning obtains is saved in database with the fixture apolegamy result obtained according to true condition c reasoning；
Before carrying out step 4, step 7 or step 11, first determine whether in database whether included problem solution, if so, directly
Obtain apolegamy conclusion；If it is not, then from apolegamy rule base extract apolegamy rule condition part, and with the true condition in database
Row compares.
The specific apolegamy requirement of hobboing cutter, knife bar and fixture each section:
The parameter of hobboing cutter mainly influences product and technique in processing, and apolegamy requires mainly to come according to gear hobbing process principle
It determines；For clamping, main includes the clamping between knife bar and lathe, clamping and fixture and work between hobboing cutter and knife bar
Clamping between part；Wherein the specific apolegamy of hobboing cutter, knife bar and fixture each section requires as follows:
1. hobboing cutter apolegamy requires
Tooth profile parameter information: gear hob is by the cutter of generating processing gear, and hobboing cutter can be seen in process
Work be with processed gear meshed gears, therefore its tooth profile parameter depend on be processed gear parameter information, specific rules are such as
Shown in table 1:
1 tooth profile parameter information matches rule of table
Tooth shape parameter information: anterior angle is 7 °~9 °, is 7 °~9 ° or 12 °~15 ° when roughing；Push up relief angle be 10 °~
12 °, side relief angle is 2 °~3 °.
Formal parameter information: the rotation direction of hobboing cutter is generally consistent with processed gear；Head number shadow in the processing of gear hobbing
Loud is the precision of finished product and the efficiency of processing, for the hobboing cutter for finishing, generally from machining accuracy and processing
The angle of finish selects Single-start hob in finishing to select a number；For roughing and semifinishing, need
Precision and efficiency are taken into account, so clearly required without correct number, therefore not as a rigid standard in apolegamy.
Structural parameters information: cellular type hobboing cutter belong to it is universal, need with knife bar cooperate carry out using；Rod-type hobboing cutter can be straight
It connects to be assembled on lathe and use, belong to tailored version；Therefore, just for universal cellular type hobboing cutter when apolegamy.
Processing technology information: pre-grinding hob belongs to roughing class hobboing cutter, and preshaving hob belongs to semifinishing class hobboing cutter, they
It is in the hobboing cutter for being ground with being used before shaving process respectively；The selection of hobboing cutter accuracy class depends primarily on processed gear
Precision.When finishing, the precision of hobboing cutter and the accuracy relation of processed gear are as shown in table 2:
Table 2 finishes hobboing cutter precision apolegamy rule
| The accuracy of gear | 7 grades | 8 grades | 9 grades | Lower than 9 grades |
| Hobboing cutter precision | AA | A | B | C |
For roughing or semifinishing, preshaving hob selects A class precision；Pre-grinding hob selects B class precision；Other
Optional C class precision.
Coating material information: common high-speed steel is used for the first gear hobbing speed V≤40~50m/min, and common grade of steel is
W18Cr4V；High speed steel is then used for second gear hobbing speed V=60~90m/min, such as aluminium high-speed steel (501), vanadium high-speed steel
(V3N), cobalt high speed steel (M42) etc.；The material for being adapted to third gear hobbing speed V >=150m/min is PM HSS and hard
Matter alloy.
2. knife bar apolegamy requires:
Main function of the knife bar in gear-hobbing machine Gear Processing is connecting machine tool and hobboing cutter, thus fixed hobboing cutter；Its clamping
Knife bar and hobboing cutter are required to include, the clamping between knife bar and lathe belongs to shaft hole matching；According to the principle of shaft hole matching, in conjunction with
The apolegamy of the actual processing of gear hobbing, knife bar should follow following principle:
1) nominal diameter of knife bar is identical as the nominal pore size of clamping machine tool knife bar；Due on lathe there are positioning device,
And
To meet the dismountable demand of knife bar, it is gap-matched between knife bar and lathe.
2) the dress knife diameter of knife bar is identical as the nominal pore size of hobboing cutter；Since knife bar can carry out axially position to hobboing cutter,
And
For the detachable demand for meeting hobboing cutter, it is gap-matched between knife bar and hobboing cutter.
3) knife bar maximum dress knife length is greater than hobboing cutter overall length.
4) the wide keyway width with hobboing cutter of the key of knife bar matches.
3. fixture apolegamy requires
Fixture main function in gear-hobbing machine Gear Processing is fixed workpieces processing, it is ensured that workpieces processing is in process
Position will not shift, to guarantee machining accuracy.According to the different outer shape of workpieces processing, used fixture
Clamping mode also has certain difference；In the processing of gear hobbing, the clamping mode of fixture is broadly divided into two major classes, and one kind is to be used for
The workpieces processing of gear shaft class belongs to collet clamping mode, needs that thimble is cooperated to use；Another kind of is the processing for gear class
Workpiece belongs to screw thread and compresses mode；After the clamping mode of fixture has been determined, need further to be selected according to the size of workpiece
Different clamp types, therefore, the apolegamy rule of fixture are as follows:
1) fixture for selecting clamping mode to clamp for collet the workpieces processing of gear shaft class.
2) fixture that clamping mode need to be selected to compress for screw thread the workpieces processing of gear class flat pattern.
3) clamping size of all kinds of workpieces processings need to meet the size range of effective clamping of all kinds of fixtures.
Match the foundation of rule base
Rule in gear-hobbing machine tool holder mineral processing model is with " IF A THEN B " using production rule representation
Form statement；Its rule base is divided into three parts, and first part is number of regulation, and second part is condition part, Part III
For conclusion part；When the true condition part with rule matches, which will be used, the conclusion of regular institute's reasoning
It can be used as the condition of next reasoning.By taking knife bar and fixture as an example, part production rule is as follows:
R1:IF (clamping machine tool aperture=26mm) AND (hobboing cutter aperture=32mm) AND (hobboing cutter overall length < 85mm) AND (key
Width=8.1mm) THEN (knife bar type number=1101001)
R2:IF (clamping machine tool aperture=26mm) AND (hobboing cutter aperture=27mm) AND (hobboing cutter overall length < 70mm) AND (key
Width=6.08mm) THEN (knife bar type number=1101006)
R3:IF (clamping machine tool aperture=26mm) AND (hobboing cutter aperture=27mm) AND (hobboing cutter overall length < 65mm) AND (key
Width=6.08mm) THEN (knife bar type number=1101008)
R4:IF (workpiece type=gear shaft class) AND (clamping workpiece size < 15mm) THEN (clamp types number=
1272003)
Present embodiment carries out case study by taking the Gear Processing workshop of Chongqing machine tool plant as an example, hereafter in table
Data both from the Gear Processing workshop, existing case is as follows:
The helical gear shaft that finishing normal module is 3 is now needed, partial information is as shown in table 3:
The gear parts workpiece parameter information to be processed of table 3
1. determining hobboing cutter collection
Rule is matched according to hobboing cutter herein, machined parameters information and technique require needed for gear as shown in table 3
Hobboing cutter parameter it is as shown in table 4；Wherein since the common cellular type hobboing cutter basis material in the workshop is W18Cr4V, coating
Material is TiN, so not including the coating material information of hobboing cutter in table 4；According to the requirement in table 4, to the Gear Processing vehicle
Between hobboing cutter in storehouse carry out screening matching, obtain the hobboing cutter collection H for meeting processing conditions, part relevant information such as 5 institute of table
Show.
4 hobboing cutter parameter request of table
5 hobboing cutter partial parameters information of table
| Hobboing cutter typonym | Type number | Outer diameter (mm) | Aperture (mm) | Overall length (mm) |
| Fine hobbing cutter M3 | 1151002 | 80 | 32 | 80 |
| Fine hobbing cutter M3 | 1151005 | 80 | 32 | 71 |
| Fine hobbing cutter M3 | 1151006 | 70 | 27 | 60 |
2. determining knife bar collection
For the Gear Processing workshop, the clamping between gear hobbing lathe of the general knife bar of gear hobbing matches standard
Change, so when knife bar need to only consider and the clamping of hobboing cutter constrain；Screening so is carried out to the knife bar in the workshop storehouse
Match, obtain the knife bar collection B to match with hobboing cutter collection H, part relevant information is as shown in table 6:
6 shaft portion parameter information of table
| Knife bar typonym | Type number | Fill knife diameter | Maximum dress knife length |
| The general knife bar of gear hobbing | 1101001 | 32 | 85 |
| The general knife bar of gear hobbing | 1101006 | 27 | 70 |
| The general knife bar of gear hobbing | 1101008 | 27 | 65 |
3. updating hobboing cutter collection
According to the information in table 6 it is found that the hobboing cutter type in table 5 has matched knife bar type, therefore in set H
Hobboing cutter type do not need to reject.
4. determining fixture collection
Since workpiece to be machined is gear shaft, therefore the clamping workpiece by the way of collet clamping；To in the workshop storehouse
Fixture carries out screening matching, obtains the fixture collection F to match with processing tasks, and part relevant information is as shown in table 7:
7 holder part parameter information of table
| Clamp types title | Type number | Clamping mode | Clamping range (mm) |
| Gear hobbing universal fixturing | 1272003 | Collet clamps | 0~15 |
5. determining tool holder type set
It can determine that tool holder set T is tool holder type of the table 5 into table 7；Rolling in final candidate's tool holder set T
Knife, knife bar and fixture information are respectively as shown in table 8 to 10.
8 hobboing cutter parameter information of table
9 knife bar parameter information of table
10 fixture parameter information of table
Claims (7)
1. a kind of tool holder matching method based on RBR, which comprises the following steps:
Step 1: determine that the apolegamy of cutter, knife bar and fixture requires respectively according to process principle and actual processing, and according to
Apolegamy requires to establish apolegamy rule base；It matches in rule base and is advised comprising Tool preparing rule, knife bar apolegamy rule and fixture apolegamy
Then；The form that every kind of apolegamy rule is all made of production rule is indicated, and includes number of regulation, condition part and conclusion portion
Point；
Step 2: obtaining processing tasks information and practical tool holder resource collection；The processing tasks information is believed comprising workpiece parameter
Breath, processing technology information and clamping information；The processing technology information includes workpiece accuracy grade, workpiece surface roughness, work
Sequence and machining tool information, machining tool information includes the clamping information of machining tool；The clamping information includes clamping workpiece
Clamping workpiece information including type and clamping workpiece size；The practical tool holder resource information include cutter resource collection,
Knife bar resource collection and fixture resource collection；
Step 3: extracting the fact that workpiece parameter information and processing technology information are as Cutting Tool Preparing condition a and be sent into data
In library；
Step 4: the condition part in Tool preparing rule is extracted, and is compared with the true condition a in database, it will be by item
The conclusion that the Tool preparing rule that part part and fact condition a match is inferred is as interim cutter collection；
Step 5: cutter resource collection of the interim cutter collection in practical tool holder resource information being compared, judges interim cutter
Whether integrate with the intersection of cutter resource collection as empty set；If so, issuing purchase request, and terminate to match process；If it is not, to face
When cutter collection and cutter resource collection intersection as cutter collection H, can be obtained including formal parameter according to cutter collection H
Cutter parameters information, and enter step 6:
Step 6: extracting the formal parameter information of each cutter and the clamping of the machining tool in processing tasks information in cutter collection H and believe
The fact that breath is as knife bar apolegamy problem condition b is simultaneously sent into database；
Step 7: the condition part in knife bar apolegamy rule is extracted, and is compared with the true condition b in database, it will be by item
The conclusion that the knife bar apolegamy rule that part part and fact condition b match is inferred is as interim knife bar collection；
Step 8: knife bar resource collection of the interim knife bar collection in practical tool holder resource information being compared, judges interim knife bar
Whether integrate with the intersection of knife bar resource collection as empty set；If so, issuing purchase request, and terminate to match process；If it is not, to face
When knife bar collection and knife bar resource collection intersection as knife bar collection B, and enter step 9；
Step 9: concentrating the supplementary set for obtaining candidate knife bar collection in interim knife bar, cutter collection H is updated according to the supplementary set: from cutter collection
Cutter collection corresponding with the supplementary set is weeded out in H；
Step 10: extracting the fact that the clamping workpiece information in processing tasks information matches problem as fixture condition c and be sent into
In database；
Step 11: the condition part in fixture apolegamy rule is extracted, and is compared with the true condition c in database, it will be by
The conclusion that the fixture apolegamy rule that condition part and fact condition c match is inferred is as temporary fixture collection；
Step 12: fixture resource collection of the temporary fixture collection in practical tool holder resource information being compared, judges interim folder
Whether tool integrates with the intersection of fixture resource collection as empty set；If so, issuing purchase request, and terminate to match process；If it is not, with
The intersection of temporary fixture collection and fixture resource collection enters step 13 as fixture collection F；
Step 13: according to updated cutter collection H, knife bar collection B and fixture collection F, calculating tool holder set T:T={ H B F }；With
Tool holder set T is as the tool holder matingplan for meeting processing tasks requirement, the wherein element in cutter collection H and knife bar collection B
There are mapping relations.
2. the tool holder matching method according to claim 1 based on RBR, which is characterized in that will be pushed away according to true condition a
Manage the Tool preparing result obtained, the knife bar obtained according to true condition b reasoning apolegamy result is obtained with according to true condition c reasoning
Fixture apolegamy result out is saved in database；Before carrying out step 4, step 7 or step 11, database is first determined whether
In whether included the solution of problem, if so, immediately arriving at apolegamy conclusion；If it is not, then extracting apolegamy rule from apolegamy rule base
Condition part, and compared with the true condition row in database.
3. the tool holder matching method according to claim 1 based on RBR, which is characterized in that Tool preparing requirement, knife bar
Apolegamy, which requires to match with fixture, requires difference as follows:
Tool preparing requirement: while meeting product requirement RHm, technique require RHcR is required with clampingHf；Product requires RHmIndicate from
For the angle of gear product, when the gear finished product processed reaches respective standard, the apolegamy requirement of process tool information；Technique
It is required that RHcIt indicates for the angle of processing technology, when the gear finished product processed reaches respective standard, process tool information
Apolegamy requires；Clamping requires RHfThe clamping met needed for cutter work in-process requirement is indicated, including between cutter and knife bar
Clamping；
Knife bar apolegamy requires: meeting knife bar clamping requirement RBf, clamping requirement RBfIndicate the clamping met needed for knife bar work in-process
It is required that including the clamping between the clamping and knife bar and lathe between knife bar and cutter；
Fixture apolegamy requires: meeting fixture clamping requirement RFf, clamping requirement RFfIndicate the clamping met needed for fixture work in-process
It is required that including the clamping between fixture and workpiece.
4. a kind of tool holder matching method of gear-hobbing machine, which is characterized in that using as claimed in claim 3 based on the knife of RBR
Fixture matching method；Cutter is hobboing cutter, the information of hobboing cutter include tooth profile parameter information, tooth shape parameter information, formal parameter information,
Structural parameters information, processing technology information and coating material information；Workpieces processing is gear or gear shaft；Workpiece parameter packet
Include normal module, normal pressure angle, helical angle, addendum coefficient, tip clearance coefficient and rotation direction.
5. the tool holder matching method of gear-hobbing machine according to claim 4, which is characterized in that hobboing cutter apolegamy requires as follows:
Tooth profile parameter information: gear hob is by the cutter of generating processing gear, and hobboing cutter can be regarded as in process
With processed gear meshed gears, therefore its tooth profile parameter depend on be processed gear parameter information；
Tooth shape parameter information: anterior angle is 7 °~9 °, is 7 °~9 ° or 12 °~15 ° when roughing；Pushing up relief angle is 10 °~12 °, side
Relief angle is 2 °~3 °；
Formal parameter information: the rotation direction of hobboing cutter is consistent with processed gear；What head number influenced in the processing of gear hobbing is into
The precision of product and the efficiency of processing, for the hobboing cutter for finishing, from machining accuracy and the angle of processing finish
To select a number, therefore Single-start hob is selected in finishing；For roughing and semifinishing, need to take into account precision and
Efficiency, so being clearly required without correct number；
Structural parameters information: cellular type hobboing cutter belong to it is universal, need with knife bar cooperate carry out using；Rod-type hobboing cutter can be direct group
It is used on lathe, belongs to tailored version；Therefore, just for universal cellular type hobboing cutter when apolegamy；
Processing technology information: pre-grinding hob belongs to roughing class hobboing cutter, and preshaving hob belongs to semifinishing class hobboing cutter, they distinguish
It is in the hobboing cutter for being ground with being used before shaving process；The selection of hobboing cutter accuracy class depends primarily on the essence of processed gear
Degree；
Coating material information: common high-speed steel is used for the first gear hobbing speed V≤40~50m/min；High speed steel is then used for
Second gear hobbing speed V=60~90m/min；PM HSS and hard alloy are adapted to third gear hobbing speed V >=150m/
min。
6. the tool holder matching method of gear-hobbing machine according to claim 4, which is characterized in that knife bar adds in gear-hobbing machine gear
Effect in work is connecting machine tool and hobboing cutter, thus fixed hobboing cutter；Its clamping requires to include knife bar and hobboing cutter, knife bar and lathe it
Between clamping, belong to shaft hole matching；According to the principle of shaft hole matching, in conjunction with the actual processing of gear hobbing, knife bar apolegamy is required
As follows: the nominal diameter of knife bar is identical as the nominal pore size of gear-hobbing machine clamping knife bar, since there are positioning devices on lathe, and is
Meet the dismountable demand of knife bar, is gap-matched between knife bar and lathe；The nominal hole of dress the knife diameter and hobboing cutter of knife bar
Diameter is identical, since knife bar can carry out axially position to hobboing cutter, and to meet the detachable demand of hobboing cutter, between knife bar and hobboing cutter
It is gap-matched；Knife bar maximum fills knife length and is greater than hobboing cutter overall length；The wide keyway width with hobboing cutter of the key of knife bar matches.
7. the tool holder matching method of gear-hobbing machine according to claim 4, which is characterized in that fixture adds in gear-hobbing machine gear
Effect in work is fixed workpieces processing, it is ensured that the position of workpieces processing in process will not shift, to guarantee
Machining accuracy；In the processing of gear hobbing, according to the different outer shape of workpieces processing, clamping workpiece type is divided into two major classes: one
Class is the workpieces processing for gear shaft class, belongs to collet clamping mode, needs that thimble is cooperated to use；Another kind of is for gear
The workpieces processing of class belongs to screw thread and compresses mode；After the clamping mode of fixture has been determined, need according to the size of workpiece come into
One step selects different clamp types, and therefore, fixture apolegamy requires as follows: selecting chuck type for the workpieces processing of gear shaft class
Fixture；Screw pressing tight type fixture is selected for the workpieces processing of gear class flat pattern；The clamping workpiece ruler of all kinds of workpieces processings
The size range of the very little effective clamping that need to meet all kinds of fixtures.
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