CN102489800A - Processing technology of tipped gear hob blades - Google Patents
Processing technology of tipped gear hob blades Download PDFInfo
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- CN102489800A CN102489800A CN2011104136280A CN201110413628A CN102489800A CN 102489800 A CN102489800 A CN 102489800A CN 2011104136280 A CN2011104136280 A CN 2011104136280A CN 201110413628 A CN201110413628 A CN 201110413628A CN 102489800 A CN102489800 A CN 102489800A
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- gear hob
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Abstract
The invention discloses a processing technology of tipped gear hob blades. The number of cutting grooves of the tipped gear hob is an even number. Two blades with the displacement quantity of a half pitch are cut on the same workpiece through a wire-electrode cutting method, and a tool path of wire-electrode cutting is a cutter tooth profile shared by the two blades. The workpiece is a square workpiece with the width L >= h + 2b, wherein h is the height of blade teeth, and b is the width between the blade teeth root and the blade bottom side. According to the characteristic that the displacement quantity of the two blades of the tipped gear hob with the cutting grooves of even number locating on the same diameter of a hub body is a half pitch, the two blades with the displacement quantity of a half pitch are cut on the same workpiece through the wire-electrode cutting method, so that materials between the cutter teeth are not wasted any more, and the materials are saved. The workpiece is in a square shape, and the displacement quantity between the blades is achieved directly through the tool path of the wire-electrode cutting so that processing can be directly carried out without displacement tools. In addition, compared with the traditional milling processing, the wire-electrode cutting has the advantage of short processing period.
Description
Technical field
The present invention relates to a kind of processing technology of gear hob, concrete is a kind of tipped gear hob blade processing technology.
Background technology
Gear hob is similar to worm screw, and just through on worm screw, processing chip pocket to form cutting edge, to form relief angle, worm screw promptly becomes hobboing cutter to cutter tooth through back-off.Each cutting edge of gear hob will strictly remain on the worm screw surface; The difference of tipped gear hob and ordinary gear hobboing cutter is: the ordinary gear hobboing cutter all adopts high-speed tool steel to process; And only blade employing high-speed tool steel making of tipped gear hob; The hobboing cutter cutter hub then adopts common materials such as 45# steel or 40Cr, reduces material cost greatly.As far as the single head gear hob, gear hob turns around, and the hobboing cutter helix moves a tooth pitch vertically, hobboing cutter front and rear row cutter tooth axially dislocation for axial pitch divided by chip pocket groove number, tipped gear hob just is based on this dislocation principle processing and manufacturing.
Existing tipped gear hob blade processing technology through mill teeth shape processing blade, is at first calculated magnitude of misalignment based on above dislocation principle, according to magnitude of misalignment design left and right sides jaw and dislocation clamp, processes at last again.Because the whole mill ofves of part between the blade cutter tooth do not add utilization, therefore existence needs that frock is many, the process-cycle is long, the shortcoming of high material consumption.With standard tipped gear hob product is example, and its modulus is 25, and it is 10 that appearance is cut groove; 30 millimeters of slot thicknesses, every blade material consumption is 10.4 kilograms, and is every 104 kilograms of hobboing cutter need consumable materials; Mill one pair of blade and need about 15 days; Milling machine man-hour is 120 hours, and normal condition need consume 1 ~ 2 on major diameter milling cutter, needs frocks such as left and right sides jaw and dislocation clamp in addition.
In view of this, the present invention is intended to propose a kind of tipped gear hob blade processing technology, adopts this tipped gear hob blade processing technology not only can reduce a large amount of frocks, and has shortened the process-cycle, has saved material.
Summary of the invention
The technical problem that the present invention will solve is to propose a kind of tipped gear hob blade processing technology, adopts this tipped gear hob blade processing technology not only can reduce a large amount of frocks, and has shortened the process-cycle, has saved material.
Realize above-mentioned technical purpose, tipped gear hob blade processing technology of the present invention adopts wire cutting method on same workpiece, to process two blades that magnitude of misalignment is the half tooth distance; And line cutting feed path is the cutter tooth profile of two blades; Said workpiece is the square cross of width L >=h+2b, and wherein, h is that the blade profile of tooth is high; B is the width between blade tooth root and the blade base, and it is even number that the appearance of said tipped gear hob is cut the groove number.
Further, state the width L=h+2b of workpiece;
Further, the central lines of said work centre line and line cutting feed path.
Beneficial effect of the present invention is: it is that the magnitude of misalignment of tipped gear hob between two blades on the same diameter of cutter hub of even number is the half the characteristics of tooth pitch that tipped gear hob blade processing technology of the present invention is cut groove according to appearance; Adopt wire cutting method to replace existing mill teeth shape processing technology; And the processing magnitude of misalignment is two blades of half tooth distance on same workpiece; The blade that obtains obtains final products through behind teeth technology, Technology for Heating Processing and the gear-grinding process identical with prior art; Can realize processing simultaneously two blades that are positioned on the same diameter of tipped gear hob, the material between the cutter tooth can not wasted, and has saved material; Because workpiece is square, and the magnitude of misalignment between the blade is directly realized therefore the dislocation frock need be set just can directly process, and the line cutting also having short advantage of process-cycle compared to traditional Milling Process by the translation of line cutting feed path.
Description of drawings
Fig. 1 is workpiece and the line cutting feed path sketch map that is used for tipped gear hob blade processing technology of the present invention;
Fig. 2 is the direct structural relation figure of two blades of half tooth distance for magnitude of misalignment;
Fig. 3 is for adopting the tipped gear hob structural representation of present embodiment tipped gear hob blade processing technology processing;
Fig. 4 is a left view for Fig. 3.
The specific embodiment
Elaborate below in conjunction with the accompanying drawing specific embodiments of the invention.
As shown in Figure 1, be the workpiece and the line cutting feed path sketch map that are used for tipped gear hob blade processing technology of the present invention, Fig. 2 is the direct structural relation figure of two blades of half tooth distance for magnitude of misalignment.The tipped gear hob blade processing technology of present embodiment; Adopt wire cutting method on same workpiece 11, to cut blade e and the blade f that magnitude of misalignment is the half tooth distance; And line cutting feed path is the cutter tooth profile between blade e and the blade f; Said workpiece 11 is the square cross of width L >=h+2b, and wherein, h is that the blade profile of tooth is high; B is the width between blade tooth root and the blade base, and the blade of the tipped gear hob blade processing technology processing of employing present embodiment is applicable to hold cuts the tipped gear hob that the groove number is an even number.
Preferably; The width L=h+2b of said workpiece, and the central lines of said workpiece 11 center lines and line cutting feed path, as shown in Figure 1; Adopt the workpiece 11 of this structure can realize the minimum material waste, blade e after the warp cutting processing and blade f can directly satisfy dimensional requirement.
As shown in Figure 2, magnitude of misalignment is that blade e and the cutter tooth profile between the blade f of half tooth distance is complementary, and promptly can to lump together composition one block length each other square for blade e and blade f.
It is that the magnitude of misalignment of tipped gear hob between two blades on the same diameter of cutter hub of even number is the half the characteristics of tooth pitch that the tipped gear hob blade processing technology of present embodiment is cut groove according to appearance; Adopt wire cutting method to replace existing mill teeth shape processing technology; And the processing magnitude of misalignment is two blades of half tooth distance on same workpiece; The blade that obtains obtains final products through behind teeth technology, Technology for Heating Processing and the gear-grinding process identical with prior art; Can realize processing simultaneously two blades that are positioned on the same diameter of tipped gear hob, the material between the cutter tooth can not wasted, and has saved material; Because workpiece 11 is square, and the magnitude of misalignment between the blade is directly realized therefore the dislocation frock need be set just can directly process, and the line cutting also having short advantage of process-cycle compared to traditional Milling Process by the translation of line cutting feed path.
Be example through a tipped gear hob product below, the tipped gear hob blade processing technology of present embodiment described that Fig. 3 is for adopting the tipped gear hob structural representation of present embodiment tipped gear hob blade processing technology processing; Fig. 4 is a left view for Fig. 3.
This tipped gear hob modulus is 25; Appearance is cut groove and is counted z=10; 30 millimeters of slot thicknesses, blade tooth pitch t=78.77mm, this tipped gear hob one total annular is uniformly distributed with 10 blades on the cutter hub 12; And be labeled as blade 1 ~ blade 10, the magnitude of misalignment a=t/z=78.77/10=7.877 between the adjacent knife blades successively respectively.
According to technological requirement; Blade 1 left side is 39.5 with the distance of profile of tooth tooth top centre-to-centre spacing blade 1 left hand edge; On other blade, all misplace to the right with these mark profile of tooth 13 corresponding profiles of tooth; That is: the profile of tooth tooth top centre-to-centre spacing blade 2 left hand edges distance corresponding with mark profile of tooth 13 is 47.38 on the blade 2; Profile of tooth tooth top centre-to-centre spacing blade 3 left hand edges distance corresponding with mark profile of tooth 13 on the blade 3 is 55.25; Profile of tooth tooth top centre-to-centre spacing blade 4 left hand edges distance corresponding with mark profile of tooth 13 on the blade 4 is 63.13, is 71.01 with mark profile of tooth 13 corresponding profile of tooth tooth top centre-to-centre spacing blade 5 left hand edges distances on the blade 5, and profile of tooth tooth top centre-to-centre spacing blade 6 left hand edges corresponding with mark profile of tooth 13 are apart from being 78.89 on the blade 6; Profile of tooth tooth top centre-to-centre spacing blade 7 left hand edges distance corresponding with mark profile of tooth 13 on the blade 7 is 86.76; Profile of tooth tooth top centre-to-centre spacing blade 8 left hand edges distance corresponding with mark profile of tooth 13 on the blade 8 is 94.64, is 102.52 with mark profile of tooth 13 corresponding profile of tooth tooth top centre-to-centre spacing blade 9 left hand edges distances on the blade 9, and profile of tooth tooth top centre-to-centre spacing blade 10 left hand edges corresponding with mark profile of tooth 13 are apart from being 110.39 on the blade 10.
Notice that corresponding profile of tooth on blade 1 and the blade 6 is 78.89-39.5=39.39 apart from the range difference of blade edge; Corresponding profile of tooth is 86.76-47.38=39.39 apart from the range difference of blade edge on blade 2 and the blade 7; Corresponding profile of tooth is 94.64-55.25=39.39 apart from the range difference of blade edge on blade 3 and the blade 8; Corresponding profile of tooth is 102.52-63.13=39.39 apart from the range difference of blade edge on blade 4 and the blade 9; Corresponding profile of tooth is 110.39-71.0=39.39 apart from the range difference of blade edge on blade 5 and the blade 10, is the half the of tooth pitch.That is, the profile of tooth magnitude of misalignment of blade 1 and blade 6 is the half the of tooth pitch, and the cutter tooth profile of blade 1 and blade 6 is identical and can lump together the formation rectangle each other, can adopt wire cutting method on a slice square cross, to process blade 1 and blade 6; In like manner; Blade 2 and blade 7, blade 3 and blade 8, blade 4 and blade 9 and blade 5 and blade 10 all can adopt wire cutting method on a slice workpiece, to process, and the blade 1 that processes and blade 6, blade 2 and blade 7, blade 3 and blade 8, blade 4 and blade 9 and blade 5 and blade 10 are successively placed on two cutter groove positions on being positioned on the cutter hub 12 same diameters respectively.
The tipped gear hob blade processing technology that adopts present embodiment not only shortens the production cycle greatly compared to traditional Milling Process, also can reduce production costs greatly.With above-mentioned tipped gear hob product is example; The every blade material norm quota of consumption is 14.2 kilograms; Whenever, need 71 kilograms of consumable materials to hobboing cutter, whenever take 33 kilograms to the hobboing cutter economical with materials, process blade with wire cutting method; Process one pair of 10 complete blade and only need 40 hours, enhance productivity greatly; In addition, can also practice thrift a large amount of frock expenses.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to preferred embodiment the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the aim and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1. tipped gear hob blade processing technology; It is even number that the appearance of said tipped gear hob is cut the groove number, it is characterized in that: adopt wire cutting method on same workpiece, to process two blades that magnitude of misalignment is the half tooth distance, and line cutting feed path is the total cutter tooth profiles of these two blades; Said workpiece is the square cross of width L >=h+2b; Wherein, h is that the blade profile of tooth is high, and b is the width between blade tooth root and the blade base.
2. tipped gear hob blade processing technology according to claim 1 is characterized in that: the width L=h+2b of said workpiece.
3. tipped gear hob blade processing technology according to claim 2 is characterized in that: the central lines of said work centre line and line cutting feed path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104136280A CN102489800A (en) | 2011-12-13 | 2011-12-13 | Processing technology of tipped gear hob blades |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104136280A CN102489800A (en) | 2011-12-13 | 2011-12-13 | Processing technology of tipped gear hob blades |
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| CN102489800A true CN102489800A (en) | 2012-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011104136280A Pending CN102489800A (en) | 2011-12-13 | 2011-12-13 | Processing technology of tipped gear hob blades |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104816057A (en) * | 2015-04-28 | 2015-08-05 | 力帆实业(集团)股份有限公司 | Batch shape correction processing method for convex teeth of neutral gears at ends of gear shifting wheels of motorcycles |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3994188A (en) * | 1974-07-16 | 1976-11-30 | Shin Meiwa Industry Co., Ltd. | Wire strand twisting apparatus for an insulated wire cutting and stripping machine |
| CN1422720A (en) * | 2001-11-30 | 2003-06-11 | 顺德市顺达电脑厂有限公司 | Punching-bending die seide block cutting method and its structure |
| CN200940313Y (en) * | 2006-05-16 | 2007-08-29 | 南京工业大学 | Steel-concrete combined beam without top flange steel plate |
| CN101545527A (en) * | 2009-05-06 | 2009-09-30 | 河北科技大学 | Over-long precise mortise joint rack and method for manufacturing same |
| CN201579498U (en) * | 2009-12-23 | 2010-09-15 | 贵阳高新蓝创精机有限公司 | Pinion cutter with fine teeth |
-
2011
- 2011-12-13 CN CN2011104136280A patent/CN102489800A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3994188A (en) * | 1974-07-16 | 1976-11-30 | Shin Meiwa Industry Co., Ltd. | Wire strand twisting apparatus for an insulated wire cutting and stripping machine |
| CN1422720A (en) * | 2001-11-30 | 2003-06-11 | 顺德市顺达电脑厂有限公司 | Punching-bending die seide block cutting method and its structure |
| CN200940313Y (en) * | 2006-05-16 | 2007-08-29 | 南京工业大学 | Steel-concrete combined beam without top flange steel plate |
| CN101545527A (en) * | 2009-05-06 | 2009-09-30 | 河北科技大学 | Over-long precise mortise joint rack and method for manufacturing same |
| CN201579498U (en) * | 2009-12-23 | 2010-09-15 | 贵阳高新蓝创精机有限公司 | Pinion cutter with fine teeth |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104816057A (en) * | 2015-04-28 | 2015-08-05 | 力帆实业(集团)股份有限公司 | Batch shape correction processing method for convex teeth of neutral gears at ends of gear shifting wheels of motorcycles |
| CN104816057B (en) * | 2015-04-28 | 2017-09-05 | 力帆实业(集团)股份有限公司 | A kind of motorcycle gear-shifting wheel end neutral double wedge correction of the flank shape batch processing method |
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Application publication date: 20120613 |