CN105414683B - The Screw thread process method that a kind of modulus is big, lead is big - Google Patents
The Screw thread process method that a kind of modulus is big, lead is big Download PDFInfo
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- CN105414683B CN105414683B CN201510890554.8A CN201510890554A CN105414683B CN 105414683 B CN105414683 B CN 105414683B CN 201510890554 A CN201510890554 A CN 201510890554A CN 105414683 B CN105414683 B CN 105414683B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/02—Thread cutting; Automatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses
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Abstract
The present invention relates to screw thread process technical fields, the Screw thread process method that especially a kind of modulus is big, lead is big, by studying screw chasing knife structure, and the structure of thread groove is studied, and then combine the structure of thread groove and the structure of screw chasing knife, screw chasing processing technology step is adjusted, and feed size, cutting way and the size in process are controlled, so that reducing the vibration of bite in cutting process, it avoids tipping to forge a knife phenomenon, improves processing efficiency.
Description
Technical field
The present invention relates to screw thread process technical field, especially a kind of modulus is big, lead is big Screw thread process method.
Background technique
Screw thread process is that workpiece is carried out machining to form on lathe, especially for trapezoidal thread and module threads
Processing, due to traditional processing method be by screw thread progress initial thread be process after, according to bilateral cutting method into
Row processing so that bite is in cutting process, suffered by resistance it is larger so as to the difficulty of screw thread process compared with
Greatly；And screw thread big for lead, that modulus is big, according to this processing method, since the active length of processing is longer, so that
The phenomenon that being shaken in cutting process, tipping caused to forge a knife；If repaired after the molding of grooving cutter grooving, then using forming cutter
Decorations processing, causes the process-cycle longer, efficiency is lower.
In consideration of it, this researcher combines existing Thread Machining Process and tool feeding method to be studied and attempted, and to existing
There is the structure of screw chasing knife of large pitch in technology, large modulus to carry out research and analysis, screw chasing knife is led greatly
Journey, the technique of the screw chasing forming processes of large modulus are explored, and the Screw thread process method for large pitch, large modulus provides
A kind of new approaches.
Summary of the invention
In order to solve the above technical problems existing in the prior art, the present invention provides the spiral shell that a kind of modulus is big, lead is big
Pattern processing method.
It is achieved particular by following technical scheme:
The Screw thread process method that a kind of modulus is big, lead is big, by screw thread process knife to workpiece radial cutting, forming depth is
The initial thread slot of b；After screw thread process knife exits, the initial thread slot that depth is b is first moved into screw thread process according to the direction B
When knife is machined to screw thread mouth distance and reaches L, the processing of first layer is completed；It is again that screw thread process knife is deep according to the mobile cutting in the direction A
Degree is the second layer thread groove of b, and before starting to cut the second layer to the mobile screw thread process knife in the direction A, by screw thread process
Knife top is to after screw thread right side wall mobile and horizontal distance c, cutting, after screw thread process knife exits, then by it according to the mobile spiral shell in the direction B
Line processing knife is machined to distance and reachesComplete the processing of the second layer；Successively according to the method described above, according to the side B
Distance is machined to mobile screw thread process knife and reaches a, and in n-th layer process, is met always according to the mobile screw thread in the direction B
Processing knife is machined to distance and reachesThe screw thread process that modulus is big, lead is big can be completed.
The d is the angle at screw thread bottom and screw thread left side wall.
Described moves screw thread process knife according to the direction B, and mobile distance is the 0.6- of the blade point degree a of screw thread process knife
0.8 times.
The direction A is mobile to the radial direction of workpiece；The direction B is mobile to the axial direction of workpiece.
Described moves screw thread process knife according to the direction B, also softens screw thread process knife contact point before mobile
Processing.
The sofening treatment is to be heated to 700~800 DEG C using neutral oxygen-flame alkynes, quick water cooling to room temperature.
Described moves screw thread process knife according to the direction A, also clicks through the knife top contact of screw thread process knife before mobile
Row sofening treatment to depth is 0.1~0.5mm.
The sofening treatment is to be heated to 700~800 DEG C using neutral oxygen-flame alkynes, quick water cooling to room temperature.
The depth b is 1mm~1.5mm.
The sofening treatment can also be handled using softening agent smearing.
Above-mentioned softening agent, material composition are 2-3 parts of polyethylene glycol, 1-3 parts of nano silica, oil in parts by weight
3-5 parts sour, 1-2 parts of boric acid, 0.1-0.5 parts of potassium dihydrogen phosphate, 3-7 parts of ethylene oxide, 1-3 parts of chromic acid tert-butyl, phosphate 3-5
Part.
It is 80-130 DEG C that the preparation method of above-mentioned softening agent, which is in temperature, by polyethylene glycol, nano silica, oil
After acid, boric acid, potassium dihydrogen phosphate mixing, ultrasonic frequency is used to handle 10-20min for 30-300Hz, so that in nano-silica
Mi-crochemistry reaction occurs under the action of SiClx, is stood in temperature is 3-7 DEG C in conjunction with by the mixed material after ultrasonic treatment
After 3-5min, then by ethylene oxide, chromic acid tert-butyl, phosphate addition, and adjusting temperature is 50-70 DEG C, and mixing speed is
1000-3000r/min stir process 10-20min enables acquisition softening agent to improve the activity of metal material surface, reaches
The effect for the lubrication that derusts reduces cutting difficulty so that matallic surface layer is softened；Simultaneously, moreover it is possible to which the cutter head of bite is carried out
Protection processing avoids excessively high temperature that cutter head is caused to be broken or soften, and makes it possible to as needed carry out screw thread free
Machining reduces processing cost.
Compared with prior art, technical effect of the invention is embodied in:
The present invention studies the structure of thread groove by studying screw chasing knife structure, and then combines
The structure of thread groove and the structure of screw chasing knife, adjust screw chasing processing technology step, and to process
In feed size, cutting way and size controlled so that reducing the vibration of bite in cutting process, avoid
Tipping is forged a knife phenomenon, and processing efficiency is improved.
In addition to this, the present invention also carries out sofening treatment to bite knife top contact point, reduces and cut before working process
Sharpener feed difficulty, reduces difficulty of processing；The present invention is heated to 700~800 DEG C using neutral oxygen-flame alkynes, avoids workpiece
Deformation during sofening treatment improves the precision of workpiece, it is ensured that the quality and quality of workpiece reduce difficult processing
Degree.
In addition to this, this researcher also uses softening agent to carry out smearing processing to bite contact point, so that bite exists
Feed can be easy at contact point, it is therefore prevented that the skidding of feed process or tipping are forged a knife phenomenon, improve to work pieces process at
The accuracy and efficiency of large pitch, large modulus, reduce difficulty of processing.
The present invention is screened herein in connection with the raw material to softening agent, and is matched and controlled to it, so that obtaining softening agent
Can derust lubrication, improve the activity of surface of workpiece, soften surface of workpiece layer, reduce feed difficulty, improve processing
Efficiency.And in conjunction with the control of preparation process and technological parameter to softening agent, enable each raw material in softening agent quasi-
True carry out biochemical action, improves the degree of contacting with each other between each material composition, improves the quality of softening agent, improve to gold
The derusting lubricating effect on metal work-pieces surface, improves the bating effect to surface of workpiece, and be also avoided that and complete the process
Screw thread afterwards gets rusty phenomenon, improves the quality of screw thread.
Detailed description of the invention
Fig. 1 is the machining sketch chart for the Screw thread process method that modulus of the present invention is big, lead is big.
1- knife top 2- screw thread bottom 3- screw thread right side wall 4- screw thread left side wall 5- knife right side wall 6- knife left side wall.
The knife top level mobile to screw thread right side wall when the layer depth c- of a- blade point degree b- cutting starts to cut the second layer
The moving direction of distance d- is the screw pitch A- of the angle L- screw thread mouth of screw thread bottom and screw thread left side wall when being next layer of cutting knife
Knife moving direction when B- is cutting same layer.
Specific embodiment
It is limited with specific embodiment technical solution of the present invention is further, but is required with reference to the accompanying drawing
The range of protection is not only limited to made description.
As shown in Figure 1, this method is in processing threaded process, the knife top 1 for first passing through screw thread process knife starts close to workpiece
First knife of screw thread is processed, and the knife top 1 of screw thread process knife is mobile to 2 end of screw thread bottom, i.e., mobile to the direction A, mobile depth is
B, and then by using traditional Screw thread process method complete the process the processing of the first knife screw thread, obtain initial thread slot；
After screwer is withdrawn, then the knife top 1 of screwer is close to the slot bottom of initial thread slot, and by screw thread process knife to the side B
To movement, so that screw thread is carried out unilateral machining, i.e. the knife left side wall of screw thread process knife and the side of screw thread by screw thread process knife
Wall is in contact, and then achievees the purpose that screw thread process, and makes stress side of the screw thread process knife in current process
To the knife left side wall 6 on knife top 1 and screwer for screwer, and the knife right side wall 5 of screwer does not stress, and reduces screwer and cuts
The resistance of processing screw thread is cut, processing efficiency is improved.
By being defined to screw thread process knife to the mobile distance in the direction B, and then can be true by the maximum distance of screw pitch
It is set to L, when in conjunction with second layer processing is carried out, by the knife top 1 of screw thread process knife apart from screw thread left side wall 4 or screw thread
Start the first knife at the c distance of right side wall 3, and this knife is mobile to the direction A so that after its depth of cut is b, then by its
It is moved according to the direction B or to the opposite direction of B, and controls moving distance and beSo that on the left of screw thread
It will not leave behind step on wall 4 and screw thread right side wall 3, complete the processing in thread groove, improve the accuracy to screw thread process；
Also, above-mentioned technique is successively arrived to the processing of n-th layer according to third layer, the 4th layer, so that every time in the case where being processed to A movement
Before one layer, by the knife top of screw thread process knife to the direction moving distance far from screw thread left side wall 4 or screw thread right side wall 3
After the distance of c, start the first knife, and depth of cut is b, after the first knife withdrawing, according to being moved on the direction B, it is mobile away from
It is from meeting when processing n-layerSo that the screw thread left side wall 4 and the smooth nothing of screw thread right side wall 3 that process
Step phenomenon improves the qualified degree of screw thread.
Embodiment 1
The Screw thread process method that a kind of modulus is big, lead is big, by screw thread process knife to workpiece radial cutting, forming depth is
The initial thread slot of b；After screw thread process knife exits, the initial thread slot that depth is b is first moved into screw thread process according to the direction B
When knife is machined to screw thread mouth distance and reaches L, the processing of first layer is completed；It is again that screw thread process knife is deep according to the mobile cutting in the direction A
Degree is the second layer thread groove of b, and before starting to cut the second layer to the mobile screw thread process knife in the direction A, by screw thread process
Knife top is to after screw thread right side wall mobile and horizontal distance c, cutting, after screw thread process knife exits, then by it according to the mobile spiral shell in the direction B
Line processing knife is machined to distance and reachesComplete the processing of the second layer；Successively according to the method described above, according to the direction B
Mobile screw thread process knife is machined to distance and reaches a, and in n-th layer process, meets add according to the mobile screw thread in the direction B always
Work knife is machined to distance and reachesThe screw thread process that modulus is big, lead is big can be completed.
The d is the angle at screw thread bottom 2 and screw thread left side wall 4.
Described moves screw thread process knife according to the direction B, and mobile distance is the 0.6 of the blade point degree a of screw thread process knife
Times.Optimal is 0.8 times, and more excellent is 0.7 times.When 0.8 times mobile, it can effectively ensure to process at each layer of screw thread bottom
Smoothness improves, but also can reduce withdrawing number, improves processing efficiency.
The direction A is mobile to the radial direction of workpiece；The direction B is mobile to the axial direction of workpiece.
The depth b is 1.5mm.Optimal depth is 1mm, and more excellent is 1.3mm.
Embodiment 2
On the basis of embodiment 1, other are described to move screw thread process knife according to the direction B with embodiment 1,
Screw thread process knife contact point is also subjected to sofening treatment before mobile.The sofening treatment is heated to using neutral oxygen-flame alkynes
700~800 DEG C, quick water cooling to room temperature.
Embodiment 3
On the basis of embodiment 1, other are described to move screw thread process knife according to the direction A with embodiment 1,
It is 0.1~0.5mm that 1 contact point of knife top of screw thread process knife, which is also carried out sofening treatment to depth, before mobile.The sofening treatment,
It is to be heated to 700~800 DEG C using neutral oxygen-flame alkynes, quick water cooling to room temperature.
Embodiment 4
On the basis of embodiment 2, with embodiment 2, the sofening treatment can also be smeared using softening agent for other
Processing.Above-mentioned softening agent, material composition are polyethylene glycol 2kg, nano silica 1kg, oleic acid 3kg, boron by weight
Sour 1kg, potassium dihydrogen phosphate 0.1kg, ethylene oxide 3kg, chromic acid tert-butyl 1kg, phosphate 3kg.
It is 80 DEG C that the preparation method of above-mentioned softening agent, which is in temperature, by polyethylene glycol, nano silica, oleic acid, boron
After acid, potassium dihydrogen phosphate mixing, ultrasonic frequency is used to handle 10min for 30Hz, so that under the action of nano silica
Mi-crochemistry reaction occurs, is in 3 DEG C after standing 3min in temperature in conjunction with the mixed material after be ultrasonically treated, then by epoxy
Ethane, chromic acid tert-butyl, phosphate are added, and adjusting temperature is 50 DEG C, and mixing speed is 1000r/min stir process
10min enables acquisition softening agent to improve the activity of metal material surface, achievees the effect that derusting lubrication, so that metal watch
Surface layer is softened, and reduces cutting difficulty；Simultaneously, moreover it is possible to protection processing be carried out to the cutter head of bite, excessively high temperature is avoided to lead
Cutter head fracture or softening are caused, makes it possible to carry out free machining to screw thread as needed, reduces processing cost.
Embodiment 5
On the basis of embodiment 3, with embodiment 3, the sofening treatment can also be smeared using softening agent for other
Processing.Above-mentioned softening agent, material composition are polyethylene glycol 3kg, nano silica 3kg, oleic acid 5kg, boron by weight
Sour 2kg, potassium dihydrogen phosphate 0.5kg, ethylene oxide 7kg, chromic acid tert-butyl 3kg, phosphate 5kg.
It is 130 DEG C that the preparation method of above-mentioned softening agent, which is in temperature, by polyethylene glycol, nano silica, oleic acid, boron
After acid, potassium dihydrogen phosphate mixing, ultrasonic frequency is used to handle 20min for 300Hz, so that in the effect of nano silica
The reaction of lower generation mi-crochemistry is in 7 DEG C after standing 5min in temperature in conjunction with the mixed material after be ultrasonically treated, then by ring
Oxidative ethane, chromic acid tert-butyl, phosphate are added, and adjusting temperature is 70 DEG C, and mixing speed is 3000r/min stir process
20min enables acquisition softening agent to improve the activity of metal material surface, achievees the effect that derusting lubrication, so that metal watch
Surface layer is softened, and reduces cutting difficulty；Simultaneously, moreover it is possible to protection processing be carried out to the cutter head of bite, excessively high temperature is avoided to lead
Cutter head fracture or softening are caused, makes it possible to carry out free machining to screw thread as needed, reduces processing cost.
Embodiment 6
On the basis of embodiment 2, with embodiment 2, the sofening treatment can also be smeared using softening agent for other
Processing.Above-mentioned softening agent, material composition be by weight polyethylene glycol 2.5kg, nano silica 2kg, oleic acid 4kg,
Boric acid 1.5kg, potassium dihydrogen phosphate 0.3kg, ethylene oxide 5kg, chromic acid tert-butyl 2kg, phosphate 4kg.
It is 120 DEG C that the preparation method of above-mentioned softening agent, which is in temperature, by polyethylene glycol, nano silica, oleic acid, boron
After acid, potassium dihydrogen phosphate mixing, ultrasonic frequency is used to handle 15min for 100Hz, so that in the effect of nano silica
The reaction of lower generation mi-crochemistry is in 5 DEG C after standing 4min in temperature in conjunction with the mixed material after be ultrasonically treated, then by ring
Oxidative ethane, chromic acid tert-butyl, phosphate are added, and adjusting temperature is 60 DEG C, and mixing speed is 2000r/min stir process
15min enables acquisition softening agent to improve the activity of metal material surface, achievees the effect that derusting lubrication, so that metal watch
Surface layer is softened, and reduces cutting difficulty；Simultaneously, moreover it is possible to protection processing be carried out to the cutter head of bite, excessively high temperature is avoided to lead
Cutter head fracture or softening are caused, makes it possible to carry out free machining to screw thread as needed, reduces processing cost.
Claims (5)
- The Screw thread process method that 1. a kind of modulus is big, lead is big, which is characterized in that by screw thread process knife to workpiece radial cutting, Form the initial thread slot that depth is b；After screw thread process knife exits, first the initial thread slot that depth is b is moved according to the direction B When dynamic screw thread process knife is machined to screw thread mouth distance and reaches L, the processing of first layer is completed；Again by screw thread process knife according to the direction A The second layer thread groove that mobile cutting depth is b, and before starting to cut the second layer to the mobile screw thread process knife in the direction A, By screw thread process knife top to after screw thread right side wall mobile and horizontal distance c, cutting, after screw thread process knife exits, then by it according to B The mobile screw thread process knife in direction is machined to distance and reachesComplete the processing of the second layer；Successively according to above-mentioned Method is machined to distance according to the mobile screw thread process knife in the direction B and reaches a, and in n-th layer process, meets always according to B The mobile screw thread process knife in direction is machined to distance and reachesThe screw thread that modulus is big, lead is big can be completed to add Work；The d is the angle of screw thread bottom (2) and screw thread left side wall (4)；Described moves screw thread process knife according to the direction A, and mobile distance is the 0.6-0.8 of the blade point degree a of screw thread process knife Times；The direction A is mobile to the radial direction of workpiece；The direction B is mobile to the axial direction of workpiece；Described moves screw thread process knife according to the direction B, and screw thread process knife contact point is also carried out sofening treatment before mobile；The sofening treatment is handled using softening agent smearing；Above-mentioned softening agent, material composition are 2-3 parts of polyethylene glycol, 1-3 parts of nano silica, oleic acid 3- in parts by weight 5 parts, 1-2 parts of boric acid, 0.1-0.5 parts of potassium dihydrogen phosphate, 3-7 parts of ethylene oxide, 1-3 parts of chromic acid tert-butyl, 3-5 parts of phosphate；It is 80-130 DEG C that the preparation method of above-mentioned softening agent, which is in temperature, by polyethylene glycol, nano silica, oleic acid, boron After acid, potassium dihydrogen phosphate mixing, ultrasonic frequency is used to handle 10-20min for 30-300Hz, so that in nano silica It acts on the lower mi-crochemistry that occurs to react, stands 3-5min in temperature is 3-7 DEG C in conjunction with by the mixed material after ultrasonic treatment Afterwards, then by ethylene oxide, chromic acid tert-butyl, phosphate it is added, and adjusting temperature is 50-70 DEG C, mixing speed 1000- 3000r/min stir process 10-20min.
- The Screw thread process method that 2. modulus as described in claim 1 is big, lead is big, which is characterized in that the sofening treatment, It is to be heated to 700~800 DEG C using neutral oxygen-flame alkynes, quick water cooling to room temperature.
- The Screw thread process method that 3. modulus as described in claim 1 is big, lead is big, which is characterized in that described according to the direction A Mobile screw thread process knife, before mobile also by knife top (1) contact point of screw thread process knife carry out sofening treatment to depth be 0.1~ 0.5mm。
- The Screw thread process method that 4. modulus as claimed in claim 3 is big, lead is big, which is characterized in that the sofening treatment, It is to be heated to 700~800 DEG C using neutral oxygen-flame alkynes, quick water cooling to room temperature.
- The Screw thread process method that 5. modulus as described in claim 1 is big, lead is big, which is characterized in that the depth b is 1mm~1.5mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510890554.8A CN105414683B (en) | 2015-12-07 | 2015-12-07 | The Screw thread process method that a kind of modulus is big, lead is big |
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| CN201510890554.8A CN105414683B (en) | 2015-12-07 | 2015-12-07 | The Screw thread process method that a kind of modulus is big, lead is big |
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| CN105414683B true CN105414683B (en) | 2019-03-05 |
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| CN110153510A (en) * | 2019-03-26 | 2019-08-23 | 宁夏天地奔牛实业集团有限公司 | A kind of digital control type interlocks feed Screw thread process method |
| CN110039129A (en) * | 2019-04-30 | 2019-07-23 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method of steam turbine valve disc steep-pitch thread |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE2523460C2 (en) * | 1975-05-27 | 1982-07-08 | The Valeron Corp., Detroit, Mich. | Device for thread cutting |
| JPS5471484A (en) * | 1977-11-18 | 1979-06-08 | Toshiba Corp | Threading process by numerical control device |
| CN102248232B (en) * | 2011-07-06 | 2013-01-09 | 中煤张家口煤矿机械有限责任公司 | Special cutter for processing external thread of shaped bolt and processing method thereof |
| CN104551268B (en) * | 2015-01-04 | 2017-02-22 | 齐鲁工业大学 | Thread machining process of welding air cylinder |
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Effective date of registration: 20230301 Address after: 550018 no.258, north section of Xintian Avenue, Wudang District, Guiyang City, Guizhou Province Patentee after: GUIZHOU ZHENHUA QUNYING ELECTRIC APPLIANCE CO., LTD.(STATE-OWNED NO.891 FACTORY) Address before: 558000 Duchuanbao, Economic Development Zone, Duyun City, Qiannan Buyei and Miao Autonomous Prefecture, Guizhou Province Patentee before: CHINA ZHENHUA Group JIUDA MACHINERY FACTORY |