CN107350565B - Long-tooth-width relay cutting mechanism and cutting method of gear shaper - Google Patents
Long-tooth-width relay cutting mechanism and cutting method of gear shaper Download PDFInfo
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- CN107350565B CN107350565B CN201710675892.9A CN201710675892A CN107350565B CN 107350565 B CN107350565 B CN 107350565B CN 201710675892 A CN201710675892 A CN 201710675892A CN 107350565 B CN107350565 B CN 107350565B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
- B23F5/12—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by planing or slotting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Control Of Cutting Processes (AREA)
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Abstract
The invention relates to a long tooth width relay cutting mechanism of a gear shaper and a cutting method, comprising a gear shaper whole cutter system, wherein the gear shaper whole cutter system is provided with two cams, namely a blank cam and a non-blank cam; when the cutter is in blank-free machining, the blank-free cam is in contact with a driven wheel connected with the cutter, and the cutter is always ensured to act according to the curve of the blank-free cam through a spring to participate in cutting; during relay processing, the whole cutter system of the gear shaper moves downwards to a section of cutting station, the idler cams act and contact with driven wheels connected with the cutters, the idler cams are not separated, and the cutters are always ensured to act according to the curves of the idler cams through springs to participate in cutting.
Description
Technical Field
The invention relates to a design method for long tooth width relay cutting of a gear shaper, in particular to a gear shaper cutting processing method for long tooth width parts and blank-free parts.
Background
In recent years, along with the improvement of environmental protection consciousness and energy conservation consciousness in China and the world, the design of each part is required to be accurate, the structure is compact and small, but the performance cannot be reduced, so that more and more parts without idler gears or splines appear on shaft parts, and meanwhile, parts with small gears and wide tooth widths appear. At present, domestic users all require to increase a blank cutter or increase the space distance to adopt gear hobbing, and because the main motion of the gear shaper is a crank sliding block mechanism, the size of the eccentric amount of a crank directly determines the processing length of a part, and the requirement of purchasing a gear shaper with ultra-large specification for long tooth width parts is met, so that the waste of energy is caused by processing small parts by the ultra-large specification gear shaper, and the purpose of users is violated.
Disclosure of Invention
The invention aims to solve the technical problem of providing a long tooth width relay cutting mechanism and a cutting method of a gear shaper.
In order to solve the technical problems, the invention provides the following technical scheme: the long tooth width relay cutting mechanism of the gear shaper comprises a gear shaper integral cutter system, wherein the gear shaper integral cutter system is provided with two cams, namely a blank cam and a non-blank cam; when the cutter is in blank-free machining, the blank-free cam is in contact with a driven wheel connected with the cutter, and the cutter is always ensured to act according to the curve of the blank-free cam through a spring to participate in cutting;
during relay processing, the whole cutter system of the gear shaper moves downwards to a section of cutting station, the idler cams act and contact with driven wheels connected with the cutters, the idler cams are not separated, and the cutters are always ensured to act according to the curves of the idler cams through springs to participate in cutting.
The cutting method adopting the gear shaper long tooth width relay cutting mechanism comprises the following steps:
step1: when the blank cutter part is subjected to gear shaping processing, namely, when a common gear shaping machine is used for cutting, a gear shaping blank cutter groove is formed in the part, when a cutter is used for cutting, the cutter is directly cut to the gear shaping blank cutter groove according to a cutting stroke, chips are cut out, when the cutter returns, the processed surface is afraid of being scratched, the processing precision of the part is affected, the cutter is directly returned to a cutter return stroke position according to a transition stroke, so that the cutter returns to the cutting stroke position through the transition stroke, and then the cutter is cut again;
step2: when the gear shaping of the non-blank part is processed, namely, when a gear shaping machine of the non-blank part is used for cutting, a gear shaping blank cutter groove is not formed in the part, when the cutter is used for cutting, the effective stroke required by the part is directly cut according to the cutting stroke, meanwhile, the cutter continues to be used for cutting according to the transition stroke until the cutter returns to the cutter return stroke, and when the cutter is used for cutting, the cutter returns to the cutting stroke through the transition stroke and is cut again; the transition travel is designed according to the space distance of the user parts;
step3: when the sectional relay machining is performed, namely, when a long-tooth wide part is machined, the machining stroke of a small gear shaping machine cannot meet the requirement, the part is required to be subjected to sectional machining, the upper part of the part tooth part is machined according to a blank-cutter-free part gear shaping machining method in Step2, then a cutter moves downwards, and the lower part of the part tooth part is machined according to a blank-cutter-free part gear shaping machining method in Step 1.
The invention has the following beneficial effects:
1. the cutter-relieving cam of the gear shaper is improved, so that the gear shaper also participates in partial cutting while relieving cutters, and the purpose that the part can be subjected to cutting without empty cutters is achieved.
2. The sectional cutting is implemented by combining the long tooth width part with the common gear shaping processing, so that the sectional relay processing of the long tooth width part is realized.
Drawings
The invention is further described below with reference to the drawings and examples.
Fig. 1 is a schematic illustration of the slotting process of a blank piece.
Fig. 2 is a schematic illustration of a zero clearance part gear shaping process.
Fig. 3 is a schematic illustration of a segment relay process.
Fig. 4 is a schematic diagram of a long tooth width relay cutting mechanism of the gear shaper.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1:
as shown in fig. 1, the long-tooth-width relay cutting mechanism of the gear shaper comprises a gear shaper integral cutter system 9, wherein the gear shaper integral cutter system 9 is provided with two cams, namely a blank cam 13 and a non-blank cam 14; when the cutter is in blank-free machining, the blank-free cam 14 is in contact with the driven wheel 12 connected with the cutter 1, and the cutter 1 is always ensured to act according to the curve of the blank-free cam 14 through the spring 10 to participate in cutting;
during relay processing, the whole cutter system 9 of the gear shaper moves downwards for a section of cutting station, the idler cams 13 act and are in contact with the driven wheels 12 connected with the cutter 1, the idler cams 14 are not separated, and the cutter 1 is always ensured to act according to the curve of the idler cams 13 through the spring 10 to participate in cutting.
Example 2:
the cutting method adopting the gear shaper long tooth width relay cutting mechanism comprises the following steps:
step1: when the blank cutter part is subjected to gear shaping processing, namely, when a common gear shaping machine is used for cutting, a gear shaping blank cutter groove is formed in the part 2, when the cutter 1 is used for cutting, the cutting edge is directly cut to the gear shaping blank cutter groove according to a cutting stroke 3, chips are cut out, when the cutter 1 is returned, the processed surface is affected by scars, the processing precision of the part is affected, the cutter 1 is directly returned to a cutter return stroke 5 according to a transition stroke 6, so that the cutter 1 is returned to the cutting stroke 3 through the transition stroke 4 for cutting;
step2: when the blank-cutter-free part gear shaping processing is carried out, namely, when a blank-cutter-free part gear shaping machine is used for cutting, a gear shaping blank cutter groove is not formed in a part, when the cutter 1 is used for cutting, the effective stroke required by the part is directly cut according to the cutting stroke 3, meanwhile, the cutter 1 is continuously used for cutting according to the transition stroke 8 until the cutter 1 returns to the cutter-back stroke 5, and when the cutter is used for cutting, the cutter returns to the cutting stroke 3 through the transition stroke 4 again, and then the cutter is cut; the transition travel 8 is designed in a transition way according to the space distance of the user parts;
step3: when the sectional relay machining is performed, namely, when a long-tooth wide part is machined, the machining stroke of a small gear shaping machine cannot meet the requirement, the part is required to be subjected to sectional machining, the upper part of the part tooth part is machined according to a blank-cutter-free part gear shaping machining method in Step2, then a cutter moves downwards, and the lower part of the part tooth part is machined according to a blank-cutter-free part gear shaping machining method in Step 1.
The working process and working principle of the invention are as follows:
as in fig. 1: gear shaping processing schematic diagram of hollow cutter part
When a common gear shaper cuts, a part 2 is provided with an empty cutter groove, when a cutter 1 cuts, the cutter is directly cut to the empty cutter according to a cutting stroke 3 to cut chips, and when the cutter 1 returns, the cutter 1 is directly retracted to a cutter-leaving stroke 5 according to a transition stroke 6 to enable the cutter 1 to return to the cutting stroke 3 through a transition stroke 4 to cut the processed surface again due to the fact that the processed surface is afraid of being scratched and the processing precision of the part is affected.
As in fig. 2: gear shaping processing schematic diagram of non-blank-cutter part
When the blank-cutter-free part gear shaper cuts, a blank cutter groove is not formed in a part 7, the cutter 1 directly cuts to an effective stroke required by the part according to a cutting stroke 3 during cutting, and meanwhile, the cutter 1 continues to cut according to a transition stroke 8 until the cutter 1 returns to a cutter-back stroke 5, and then returns to the cutting stroke 3 through a transition stroke 4 during cutting. The transition travel 8 is designed according to the space distance of the user parts.
As in fig. 3: sectional relay processing schematic diagram
When a long-tooth wide part is machined, the machining stroke of a small gear shaping machine cannot meet the requirement, the part is required to be machined in a segmented mode, the upper part of the part tooth part is machined in a non-idle machining mode, then the cutter moves downwards, and the lower part of the part tooth part is machined in an idle machining mode.
As in fig. 4: long tooth width relay cutting mechanism structure of gear shaper
The gear shaping machine is provided with two cams, namely a free-cutter cam 13, a free-cutter cam 14 and a free-cutter cam 14, wherein the free-cutter cam 14 is contacted with the cutter 1 and the connected driven wheel 12 during free-cutter processing, and the cutter 1 is always ensured to act according to the curve of the free-cutter cam 14 through a spring 10 to participate in cutting; during relay processing, the whole cutter system 9 moves downwards by a section of cutting station, the idler cams 13 act and are in contact with the driven wheels 12 connected with the cutters 1, no idler cams 14 are separated, the cutters 1 are always ensured to act according to the curves of the idler cams 13 through the springs 10 to participate in cutting, and therefore the sectional relay processing of long tooth width parts is realized in a sectional cutting mode, and the wider the tooth width is, the more the sections are.
From the above description, it is apparent to those skilled in the art that various changes and modifications can be made without departing from the scope of the technical spirit of the invention. The present invention is not limited to the prior art.
Claims (1)
1. The cutting method of the long tooth width relay cutting mechanism of the gear shaper comprises a gear shaper whole cutter system (9), wherein the gear shaper whole cutter system (9) is provided with two cams, namely a free cam (13) and a non-free cam (14); when the cutter is in blank-free machining, the blank-free cam (14) is in contact with the driven wheel (12) connected with the cutter (1), and the cutter (1) is always ensured to act according to the curve of the blank-free cam (14) through the spring (10) to participate in cutting;
during relay processing, the whole cutter system (9) of the gear shaping machine moves downwards for a section of cutting station, a free cutter cam (13) acts and is in contact with a driven wheel (12) connected with the cutter (1), the free cutter cam (14) is not separated, and the cutter (1) is always ensured to act according to the curve of the free cutter cam (13) through a spring (10) to participate in cutting;
the cutting method is characterized by comprising the following steps of:
step1: when the blank cutter part is subjected to gear shaping processing, namely, when a common gear shaping machine is used for cutting, a gear shaping blank cutter groove is formed in the part (2), the cutting tool (1) is directly cut to the gear shaping blank cutter groove according to a cutting stroke (3) to cut chips, when the cutting tool (1) returns, the processed surface is affected by the fear of scratch, the processing precision of the part is affected, the cutting tool (1) is directly retracted to a cutter yielding stroke (5) according to a transition stroke (6) to enable the cutting tool (1) to return, and when the cutting tool is used for cutting, the cutting tool returns to the cutting stroke (3) through a transition stroke (4) to be cut again;
step2: when the blank-cutter-free part gear shaping processing is carried out, namely, when a blank-cutter-free part gear shaping machine is used for cutting, a gear shaping blank cutter groove is not formed in a part, when a cutter (1) is used for cutting, the cutter (1) is directly cut to an effective stroke required by the part according to a cutting stroke (3), meanwhile, the cutter (1) is continuously cut according to a transition stroke (8) until the cutter (1) returns to a cutter-back stroke (5) when the cutter is cut, and then the cutter is returned to the cutting stroke (3) through a transition stroke (4) when the cutter is cut; wherein the transition travel (8) is designed in a transition way according to the space distance of the user parts;
step3: when the sectional relay machining is performed, namely, when a long-tooth wide part is machined, the machining stroke of a small gear shaping machine cannot meet the requirement, the part is required to be subjected to sectional machining, the upper part of the part tooth part is machined according to a blank-cutter-free part gear shaping machining method in Step2, then a cutter moves downwards, and the lower part of the part tooth part is machined according to a blank-cutter-free part gear shaping machining method in Step 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710675892.9A CN107350565B (en) | 2017-08-09 | 2017-08-09 | Long-tooth-width relay cutting mechanism and cutting method of gear shaper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710675892.9A CN107350565B (en) | 2017-08-09 | 2017-08-09 | Long-tooth-width relay cutting mechanism and cutting method of gear shaper |
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| Publication Number | Publication Date |
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| CN107350565A CN107350565A (en) | 2017-11-17 |
| CN107350565B true CN107350565B (en) | 2023-05-02 |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2649241Y (en) * | 2003-09-29 | 2004-10-20 | 天津第一机床总厂 | Tool retracting device for combing-cutter gear shaping machine |
| CN2757991Y (en) * | 2004-12-07 | 2006-02-15 | 宜昌长机科技有限责任公司 | Regulating device of gear slotting machine cutting angle |
| CN2868522Y (en) * | 2006-03-11 | 2007-02-14 | 宜昌长机科技有限责任公司 | Gear shaping machine tow-way tool retracting device |
| CN1861305B (en) * | 2006-06-14 | 2010-08-25 | 宜昌长机科技有限责任公司 | Tool retracting conversion device for gear-shaper |
| CN102489787B (en) * | 2011-11-29 | 2014-01-01 | 广州市珠江机床厂有限公司 | Full-automatic switching and positioning mechanism for internal and external gears of gear shaping machine |
| CN202527802U (en) * | 2012-02-23 | 2012-11-14 | 南京二机齿轮机床有限公司 | Gear shaper cutter relieving device capable of quickly changing cutter relieving direction |
| CN103341669B (en) * | 2013-07-16 | 2018-01-09 | 宜昌长机科技有限责任公司 | The two-way knife tripper that allows of gear shapping machine |
| CN104028847B (en) * | 2014-06-12 | 2016-03-16 | 南京博程数控齿轮设备有限责任公司 | A kind of digital control gear shaper |
| CN206981919U (en) * | 2017-08-09 | 2018-02-09 | 宜昌长机科技有限责任公司 | The long facewidth relay cutting mechanism of gear shapping machine |
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