CN110405288B - Control method for realizing automatic grouping displacement circulation of comb slot cutters - Google Patents
Control method for realizing automatic grouping displacement circulation of comb slot cutters Download PDFInfo
- Publication number
- CN110405288B CN110405288B CN201910651335.2A CN201910651335A CN110405288B CN 110405288 B CN110405288 B CN 110405288B CN 201910651335 A CN201910651335 A CN 201910651335A CN 110405288 B CN110405288 B CN 110405288B
- Authority
- CN
- China
- Prior art keywords
- tooth
- teeth
- workpiece
- shaft
- processed
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F19/00—Finishing gear teeth by other tools than those used for manufacturing gear teeth
- B23F19/06—Shaving the faces of gear teeth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F21/00—Tools specially adapted for use in machines for manufacturing gear teeth
- B23F21/28—Shaving cutters
Abstract
The invention relates to a control method for realizing automatic grouping displacement circulation of comb slot cutters, which comprises the following steps: the first step is as follows: initializing parameters of a workpiece, and initializing machining parameters; the second step is that: a linear radial feed shaft X axis perpendicular to the tooth surface of the workpiece is linked with a comb cutter cutting main shaft SP axis to realize small groove cutting processing, after one tooth surface is processed, the cutter is withdrawn, the offset of the next tooth is calculated in real time by a linear offset shaft Y axis parallel to the tooth surface of the workpiece to perform offset motion, and a rotary servo shaft B axis of the workpiece is rotated to the next processed tooth surface; the third step: the radial feed shaft X shaft and the main shaft SP broach are fed in a linkage manner to carry out circular processing of cutting and removing the small grooves, and all grouped tooth surfaces are processed; the fourth step: and (3) through continuous circular machining, machining one tooth, adding 1 to the tooth row number, calculating the machining position of the next tooth, moving to the position, and then continuing machining until all the teeth are machined, namely finishing all the cutting.
Description
Technical Field
The invention belongs to the field of manipulators, and particularly relates to a control method for realizing automatic grouping displacement circulation of comb slot cutters.
Background
The gear shaving cutter is a finish machining cutter for straight-tooth and helical involute cylindrical gears. The processing of the chip grooves on the gear shaving cutter is completed by a special gear shaving cutter comb groove machine tool, and the radial gear shaving is only radially moved because of no axial movement, so that the chip grooves between the teeth cannot be arranged in the same rotating plane, and the chip grooves are required to be arranged in a special dislocation mode by staggering a certain distance so as to shave the whole tooth surface. The process is developed more mature abroad, but related theories and processes are kept secret by manufacturers, related researches in China are few, related machine tools are expensive, and export of the process to China is limited.
The configuration of the chip flutes is a critical part of the design of a radial shaving cutter, and whether it is reasonable or not will directly affect the efficiency of shaving and the quality of the shaving surface. The chip flutes are arranged in a staggered mode in various modes, and the chip flutes are arranged in a spiral line mode at present, so that programming processing on a numerical control slot combing machine with an automatic staggered function can be conveniently achieved; the other method is a grouping arrangement method, because the application is less, the related process theory research is less at present in China, the processing implementation depends on manual calculation of the dislocation quantity of the tooth socket on each tooth and the grouping tooth number to form a table, then the manual operation is carried out after tooth positioning one by one to process, the automatic programming processing cannot be realized, and the problems of low processing efficiency, unstable processing precision and the like are caused.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a universal implementation algorithm, induces and infers a universal tooth calculation and division method, improves the problems that all machining position coordinates need to be calculated manually before the past machining, and then each tooth is machined sequentially according to the sequence, and reduces the working strength and the requirement on the skill of an operator. Meanwhile, by applying the program developed by the invention on a numerical control slot-combing machine tool, automatic and random indexing processing can be realized, and the processing efficiency and the processing precision are improved.
In order to solve the technical problems, the invention provides the following technical scheme: a control method for realizing automatic grouping displacement circulation of comb slot cutters comprises the following steps:
the first step is as follows: initializing parameters of a workpiece, including the number of teeth of a gear to be machined, the number of teeth of a gear shaving cutter, the number of groups and the axial offset of small grooves of adjacent groups;
initializing machining parameters including the number of strokes of a main shaft, the feeding speed, the feeding amount and the workpiece mounting angle;
the second step is that: a linear radial feed shaft X axis perpendicular to the tooth surface of the workpiece is linked with a comb cutter cutting main shaft SP axis to realize small groove cutting processing, after one tooth surface is processed, the cutter is withdrawn, the offset of the next tooth is calculated in real time by a linear offset shaft Y axis parallel to the tooth surface of the workpiece to perform offset motion, and a rotary servo shaft B axis of the workpiece is rotated to the next processed tooth surface;
the third step: the radial feed shaft X shaft and the main shaft SP broach are fed in a linkage manner to carry out circular processing of cutting and removing the small grooves, and all grouped tooth surfaces are processed;
the comb teeth are positioned at the same position, namely the comb teeth are not offset; the difference of the tooth numbers of the adjacent groups on the gear shaving cutter is the same as the tooth number of the gear to be processed; the tooth number of the first group is the sum of the tooth number of the previous row of the last group and the tooth number of the gear to be processed, and if the tooth number of the tool is exceeded, the tooth number of the tool is subtracted to obtain the remainder;
the fourth step: and (3) through continuous circular machining, machining one tooth, adding 1 to the tooth row number, calculating the machining position of the next tooth, moving to the position, and then continuing machining until all the teeth are machined, namely finishing all the cutting.
The teeth in the same group need to be processed in sequence, but the teeth in the same group are not continuously arranged on the gear and need to be continuously calculated according to the grouping number, and the tooth serial number a to be processed in the next row is sequentially calculated according to the tooth serial number where the previous row of teeth are located in the same groupnThe rotating servo shaft B of the workpiece moves to the angular position of the tooth to be machined according to the tooth serial number, and rotates to the tooth to be machined, and the tooth serial number a to be machinednThe calculation formula of (2) is as follows:
an={1+[(c-1)×(x+1)+(r-1)]×Z}mod(Zc)
where Zc is the number of teeth of the gear to be shaved, r is the row number, c is the column number, x is the number of groups, Z is the number of teeth of the gear to be machined, and mod is the remainder function.
Judging whether the workpiece tangential Y-axis deviation is needed according to the group number of the teeth currently machined;
Yn=Y0+(r-1)×S
wherein, YnFor the position of the coordinate axis of the group in which the current tooth number is located, Y0And the coordinate axis position of the first group of teeth is shown, r represents the number of groups of the current teeth, and S is the offset of each group.
The position calculation formula of the workpiece tooth division motion is as follows:
Bn=(an-1)×360/ Zw
wherein, BnAngle of rotation for tooth currently to be machined, anFor calculating the number of teeth to be machined, ZwIs the total number of teeth of the workpiece.
The invention has the following beneficial effects:
1. the automatic calculation grouping displacement circulation control method is particularly suitable for shaving cutters with the chip grooves arranged according to the grouping rule, the machining position can be automatically calculated only by inputting numerical control machining parameters during machining, and the automatic calculation method is quick and accurate in calculation, convenient to operate and high in machining efficiency. The processing precision is high.
2. The invention provides an automatic grouping and arranging algorithm, and the automatic processing can be carried out only by setting processing parameters, so that the steps of manual calculation and inputting processing coordinate points are reduced, the preparation time of the processing is shortened, and the requirements of the processing on operation and calculation personnel are reduced.
Drawings
The invention is further illustrated by the following figures and examples.
Fig. 1 is a cutting flow chart.
Fig. 2 is a schematic view of the tooth profile of the shaved tooth surface after processing.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1-2, a control method for realizing automatic grouping displacement circulation of comb-groove cutters is characterized in that the comb-groove cutter displacement control of a gear shaving cutter comb-groove machine tool is realized according to a grouping principle, only a group number and a column number of a tooth to be machined are determined, an algorithm formula can be used for calculating an actually positioned tooth number, the offset of a Y axis is calculated according to the positioned group number, and the indexing angle is calculated according to the tooth number of the tooth positioned on the circumference of a gear at a tooth-dividing position of a B axis. After shifting and indexing are in place, starting the stroke of the main shaft, simultaneously feeding and cutting the radial feed shaft X shaft, after the current tooth is machined, radially withdrawing the X shaft, stopping the main shaft and stopping the main shaft, on the basis of the calculated data of the previous tooth, calculating the position of the next tooth by adopting a grouping arrangement algorithm until all tooth surfaces are machined, and finishing machining after all machining cycles are finished.
Firstly, initializing parameters of a workpiece, including the number of teeth of a gear to be machined, the number of teeth of a gear shaving cutter, the number of groups and the axial offset of small grooves of adjacent groups; initializing machining parameters including the number of strokes of the main shaft, the feeding speed, the feeding amount and the installation angle of the workpiece.
The machining is started from the group number and the column number where the initial machining tooth is located, the actual displacement amount automatically grouped into the actual displacement amount is determined according to the located group number, and the calculation formula is as follows:
Yn=Y0+(r-1)×S
wherein, YnFor the position of the coordinate axis of the group in which the current tooth number is located, Y0And the coordinate axis position of the first group of teeth is shown, r represents the number of groups of the current teeth, and S is the offset of each group. The offsets of different group numbers are accumulated in sequence.
The comb teeth knives are positioned at the same position in the same group of knife teeth, namely the comb teeth knives do not shift. And the difference of the tooth numbers of the adjacent groups on the gear shaving cutter = the tooth number of the gear to be machined. The number of teeth of the first group = the number of teeth of the preceding row of the last group + the number of teeth of the gear to be machined. If the number of the cutter teeth is exceeded, the remainder is obtained by subtracting the number of the cutter teeth. The Y-axis offset is determined according to the group number, the B-axis indexing angle is determined according to the tooth serial number, the teeth in the same group need to be processed in sequence, the tooth serial number an of the next row to be processed is calculated in sequence according to the tooth serial number of the previous row of teeth in the same group, and the B-axis of the workpiece indexing shaft automatically calculates the angle position of the teeth to be processed according to the tooth serial number and rotates to the teeth to be processed. Calculating the serial number of the processed tooth on the whole gear according to the group number and the column number:
an={1+[(c-1)×(x+1)+(r-1)]×Z}mod(Zc)
in the formula, ZCThe number of gear teeth to be shaved is r is row number, c is column number, x is group number, and Z is the number of gear teeth to be machined.
The position calculation formula of the workpiece tooth dividing motion is
Bn=(an-1)×360/ Zw
Wherein, BnAngle of rotation for tooth currently to be machined, anFor calculating the number of teeth to be machined, ZwIs the total number of teeth of the workpiece.
And (3) through continuous circular machining, machining one tooth, adding 1 to the tooth row number, calculating the machining position of the next tooth, moving to the position, and then continuing machining until all the teeth are machined, namely finishing all the cutting.
From the above description, those skilled in the art can make various changes and modifications within the scope of the technical idea of the present invention without departing from the scope of the invention. The present invention is not limited to the details given herein, but is within the ordinary knowledge of those skilled in the art.
Claims (1)
1. A control method for realizing automatic grouping displacement circulation of comb slot cutters is characterized by comprising the following steps:
the first step is as follows: initializing parameters of a workpiece, including the number of teeth of a gear to be machined, the number of teeth of a gear shaving cutter, the number of groups and the axial offset of small grooves of adjacent groups;
initializing machining parameters including the number of strokes of a main shaft, the feeding speed, the feeding amount and the workpiece mounting angle;
the second step is that: a linear radial feed shaft X axis perpendicular to the tooth surface of the workpiece is linked with a comb cutter cutting main shaft SP axis to realize small groove cutting processing, after one tooth surface is processed, the cutter is withdrawn, the offset of the next tooth is calculated in real time by a linear offset shaft Y axis parallel to the tooth surface of the workpiece to perform offset motion, and a rotary servo shaft B axis of the workpiece is rotated to the next processed tooth surface;
the third step: the radial feed shaft X shaft and the main shaft SP broach are fed in a linkage manner to carry out circular processing of cutting and removing the small grooves, and all grouped tooth surfaces are processed;
the comb teeth are positioned at the same position, namely the comb teeth are not offset; the difference of the tooth numbers of the adjacent groups on the gear shaving cutter is the same as the tooth number of the gear to be processed; the tooth number of the first group is the sum of the tooth number of the previous row of the last group and the tooth number of the gear to be processed, and if the tooth number of the tool is exceeded, the tooth number of the tool is subtracted to obtain the remainder;
the fourth step: through continuous circular processing, one tooth is processed, the tooth column number is added with 1, the processing position of the next tooth is calculated, and the processing is continued after each shaft of the machine tool moves to the calculated position until all the teeth are processed, namely all the cutting is finished;
the teeth in the same group need to advance in sequenceThe teeth of the same group are not continuously arranged on the gear, and need to be continuously calculated according to the grouping number, and the tooth number a of the next row to be processed is sequentially calculated according to the tooth number of the previous row of teeth in the same groupnThe rotating servo shaft B of the workpiece moves to the angular position of the tooth to be machined according to the tooth serial number, and rotates to the tooth to be machined, and the tooth serial number a to be machinednThe calculation formula of (2) is as follows:
an={1+[(c-1)×(x+1)+(r-1)]×Z}mod(Zc)
in the formula, Zc is the number of gear teeth to be shaved, r is the row serial number, c is the column serial number, x is the grouping number, Z is the number of gear teeth to be machined, mod is a remainder function;
judging whether the workpiece tangential Y-axis deviation is needed according to the group number of the teeth currently machined;
Yn=Y0+(r-1)×S
wherein, YnFor the position of the coordinate axis of the group in which the current tooth number is located, Y0The coordinate axis position of the first group of teeth is shown, r represents the number of groups of the current teeth, and S is the offset of each group;
the position calculation formula of the workpiece tooth division motion is as follows:
Bn=(an-1)×360/ Zw
wherein, BnAngle of rotation for tooth currently to be machined, anFor calculating the number of teeth to be machined, ZwIs the total number of teeth of the workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910651335.2A CN110405288B (en) | 2019-07-18 | 2019-07-18 | Control method for realizing automatic grouping displacement circulation of comb slot cutters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910651335.2A CN110405288B (en) | 2019-07-18 | 2019-07-18 | Control method for realizing automatic grouping displacement circulation of comb slot cutters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110405288A CN110405288A (en) | 2019-11-05 |
| CN110405288B true CN110405288B (en) | 2020-11-10 |
Family
ID=68361963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910651335.2A Active CN110405288B (en) | 2019-07-18 | 2019-07-18 | Control method for realizing automatic grouping displacement circulation of comb slot cutters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110405288B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203621650U (en) * | 2013-12-27 | 2014-06-04 | 重庆工具厂有限责任公司 | Groove carding cutter for radial gear shaving cutter |
| CN103878443A (en) * | 2014-03-28 | 2014-06-25 | 宜昌长机科技有限责任公司 | Machine tool used for machining gear shaving cutter chip pocket |
| JP2018103285A (en) * | 2016-12-22 | 2018-07-05 | 株式会社 神崎高級工機製作所 | Shaving cutter, method for processing gear, and gear processing device |
| CN108687410A (en) * | 2018-05-23 | 2018-10-23 | 上海星合机电有限公司 | Comb groove machine tool and its comb slot knife displacement control method |
-
2019
- 2019-07-18 CN CN201910651335.2A patent/CN110405288B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203621650U (en) * | 2013-12-27 | 2014-06-04 | 重庆工具厂有限责任公司 | Groove carding cutter for radial gear shaving cutter |
| CN103878443A (en) * | 2014-03-28 | 2014-06-25 | 宜昌长机科技有限责任公司 | Machine tool used for machining gear shaving cutter chip pocket |
| JP2018103285A (en) * | 2016-12-22 | 2018-07-05 | 株式会社 神崎高級工機製作所 | Shaving cutter, method for processing gear, and gear processing device |
| CN108687410A (en) * | 2018-05-23 | 2018-10-23 | 上海星合机电有限公司 | Comb groove machine tool and its comb slot knife displacement control method |
Non-Patent Citations (2)
| Title |
|---|
| 《剃齿刀通用性校核方法研究》;孟永财;《现代制造工程》;20051231;第97-99页 * |
| 《径向剃齿刀切削槽的合理排列》;刘俐平;《哈尔滨工业大学学报》;19971231;第109-111页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110405288A (en) | 2019-11-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100291167B1 (en) | Method of machining gears during indexing | |
| US6839953B2 (en) | Combination gear hobber, chamfer/debur and shaver apparatus and method | |
| US4779318A (en) | Multiple spindle machine having independently variable speed and feed rates | |
| JPH0229449B2 (en) | ||
| EP3157703B1 (en) | Method for finishing hardened gears | |
| US20060174464A1 (en) | Multiple operation gear manufacturing apparatus with common work axis | |
| CN106270812A (en) | A kind of method of lathe in machining helical surface of enveloping worm | |
| JP2018176415A (en) | Method for gear manufacturing machining of workpiece | |
| JP2018202565A (en) | Gear processing method and gear processing device | |
| CN112809503A (en) | Forming and grinding machining method for turbine disc mortise | |
| JP2005096070A (en) | Generating method for spiral bevel gear and machine | |
| JP2645735B2 (en) | Method for grinding gear tooth surface by index rolling method and machine suitable for the method | |
| CN110405288B (en) | Control method for realizing automatic grouping displacement circulation of comb slot cutters | |
| CN111659908B (en) | Turning-based cylindrical surface reticulate pattern machining method and system | |
| CN109719462A (en) | A kind of nonmetallic large pitch trapezoidal thread rough mills smart car combined machining method | |
| JPS5923930B2 (en) | Gear grinding method and wheel used for this purpose | |
| US20090060672A1 (en) | Multiple Operation Gear Manufacturing Apparatus With Common Work Axis | |
| KR20230039636A (en) | How to machine and create teeth on a workpiece | |
| CN107999895B (en) | Pattern gear shaping mechanism and processing method of pattern gear | |
| CN205342102U (en) | Bidentate quick processingequipment of spiral roller gear that gradually bursts at seams | |
| JP4208162B2 (en) | Gear shaping with NC lathe | |
| CN104889500A (en) | Gear big circumference feeding slotting machining process | |
| CN114273733B (en) | Worm gear tooth groove processing method | |
| RU2306210C1 (en) | Cutter head | |
| PL439202A1 (en) | Method of processing a cylindrical gear with straight teeth and any shape |
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 |