CN106363250A - Turning method of two-thread worm - Google Patents
Turning method of two-thread worm Download PDFInfo
- Publication number
- CN106363250A CN106363250A CN201611008854.XA CN201611008854A CN106363250A CN 106363250 A CN106363250 A CN 106363250A CN 201611008854 A CN201611008854 A CN 201611008854A CN 106363250 A CN106363250 A CN 106363250A
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- CN
- China
- Prior art keywords
- turning
- worm
- helicla flute
- smart car
- car
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- 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.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F13/00—Making worms by methods essentially requiring the use of machines of the gear-cutting type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention relates to a turning method of a two-thread worm, which belongs to the field of machining, and particularly relates to the turning method of the two-thread worm. The turning method comprises the following steps of forging workblank by adopting No.45 steel; clamping a workpiece by using a three-jaw chuck, roughly turning the excircle of the workblank, and processing by adopting a CA6140 lathe; performing heat treatment, and tempering; clamping the workpiece by using the three-jaw chuck, turning the end surface, drilling a center hole, then turning around, turning the other end surface to the total length, and drilling a center hole; clamping by using two thimbles, performing half fine turning on all excircles, and leaving the fine turning allowance for 0.5 millimeter; performing fine turning on the excircle and length of threads, and chamfering to the size of a drawing; selecting a rough turning tool of the worm, wherein the width of a tool nose is 1.6 to 1.7 millimeters, the angle of the tool nose is 39 to 40 degrees, and the edge inclination angle is 20 to 25 degrees; selecting a fine turning tool of the worm, wherein the width of a tool nose is 1.8 mm, the angle of the tool nose is 40 degrees, and the edge inclination angle is 0 to 4 degrees; roughly turning the threads at the rotating speed of 40 turns/minute, performing fine turning on the threads at the rotating speed of 12 turns/minute, and cooling by adopting emulsion; and processing by adopting ahead and astern, and adopting a small support plate scale separating method. The turning method has the advantages of convenience in processing and easiness in operation, the processing quality and the processing accuracy of the workpiece can be guaranteed, and the production efficiency is improved.
Description
Technical field
The present invention relates to field of machining is and in particular to the method for turning of double-thread worm.
Background technology
Along two or more, the worm screw being formed in the helix being axially equally spaced is multistart worm.Bull snail
Bar is divided into axially directly wide (Archimedes spiral) worm screw and two kinds of straight sided normal worm ZN-worm, and the former profile of tooth is straight in axial plane
Line, is curve, the profile of tooth of the latter and the former contrast in normal plane.Multistart worm has special technical requirements, processing
During must limit worm thread axial pitch deviation, the cumulative error of axial pitch, worm tooth shape error should tolerance it
Interior, otherwise by the transmission accuracy of impact worm gear.The screw thread flank of tooth of worm screw is coarse, by the wearability of impact working surface and use
Life-span.
The parted hair method of multistart worm: car multistart worm, mainly solve parted hair method.Formed former according to multistart worm
Reason, parted hair method has axial parted hair method and circumference parted hair method two class.Axial parted hair method, after first spiral tank car is good, lathe tool
Move a tooth pitch along workpiece axial direction, then car Article 2 helicla flute.Article first, after spiral tank car is good, by main shaft to leading screw
Driving-chain disengage, workpiece turns over angle, then the main shaft that closes is to the driving-chain of leading screw, another helicla flute of turning.So successively
Separately so that it may car goes out multiple thread.And require it is impossible to meet for occurring in the course of processing that machining accuracy is not high.
Content of the invention
In order to solve the above problems, the present invention provides a kind of convenient processing it is easy to operate, and can guarantee that the processing matter of workpiece
Amount and machining accuracy, the method for turning of the double-thread worm of improve production efficiency.
The method for turning of double-thread worm of the present invention, comprises the following steps:
The first step, rough forging material, made using No. 45 steel forgings；
Second step, clamps workpiece with scroll chuck, and rough turn blank is cylindrical, using ca6140 lathe process；
3rd step, heat treatment, quenched；
4th step, clamps workpiece, face work centering with scroll chuck, then reverses end for end, car other end, to overall length, hits the heart
Hole；
5th step, with two thimble clampings, each is cylindrical for half smart car, stays 0.5 millimeter of allowance；
6th step, smart car screw thread is cylindrical, length, chamfering are to drawing size；
7th step, chooses worm screw roughing tool, point of a knife width 1.6-1.7 millimeter, nose angle 39-40 degree, cutting edge inclination 20-25 degree；Snail
Bar finishing tool, point of a knife width 1.8mm, 40 degree of nose angle, cutting edge inclination 0-4 degree；
8th step, during rough threading, rotating speed is 40 revs/min, is 12 revs/min during smart car, using emulsion cooling；Using suitable
Vehicle Processing, using upper slide rest scale parted hair method；
9th step, rough turn two worm threads, process first helicla flute with roughing tool cutting to left and right method, until groove depth is
6.1mm, bottom land width 1.8mm, and remember margin scale during upper slide rest cutting to left and right；Then roughing Article 2 helicla flute, this
When small slide plate is moved forward or rearward 9.42mm, during cutting to left and right, first spiral not can exceed that to the moving range of small slide plate
The margin scale of groove adds 9.42mm, and bottom land width is still 1.8mm, until completing Article 2 helicla flute；
Tenth step, two screw threads of smart car worm screw, to drawing size, change worm screw finishing tool, first article of helicla flute of smart car: first car becomes
Simultaneously, then smart car second face, control flume bottom width and groove depth, until completing first helicla flute, and remember little during cutting to left and right
The margin scale of planker, polish Article 2 helicla flute, upper slide rest is moved forward or rearward 9.42mm, first car becomes one side, then
Smart car another side, the distance that upper slide rest moves forward and backward is that the Derivative limit on the left or on the right scale of first helicla flute upper slide rest adds 9.42mm,
Ensure the wide size of groove depth, bottom land and two side roughness；
11st step, whether the normal tooth thickness measuring adjacent two teeth meets drawing size, if meeting, worm tooth shape part is processed
Complete, otherwise, depending on margin value, worm tooth shape is corrected, till meeting size, with file to flank, wedge angle and burr
Finishing；
12nd step, smart car each several part is cylindrical；
13rd step, inspection.
The convenient processing of the present invention is it is easy to operate, and can guarantee that crudy and the machining accuracy of workpiece, improves and produces effect
Rate.
Specific embodiment
The method for turning of double-thread worm of the present invention, comprises the following steps:
The first step, rough forging material, made using No. 45 steel forgings；
Second step, clamps workpiece with scroll chuck, and rough turn blank is cylindrical, using ca6140 lathe process；
3rd step, heat treatment, quenched；
4th step, clamps workpiece, face work centering with scroll chuck, then reverses end for end, car other end, to overall length, hits the heart
Hole；
5th step, with two thimble clampings, each is cylindrical for half smart car, stays 0.5 millimeter of allowance；
6th step, smart car screw thread is cylindrical, length, chamfering are to drawing size；
7th step, chooses worm screw roughing tool, point of a knife width 1.6-1.7 millimeter, nose angle 39-40 degree, cutting edge inclination 20-25 degree；Snail
Bar finishing tool, point of a knife width 1.8mm, 40 degree of nose angle, cutting edge inclination 0-4 degree；
8th step, during rough threading, rotating speed is 40 revs/min, is 12 revs/min during smart car, using emulsion cooling；Using suitable
Vehicle Processing, using upper slide rest scale parted hair method；
9th step, rough turn two worm threads, process first helicla flute with roughing tool cutting to left and right method, until groove depth is
6.1mm, bottom land width 1.8mm, and remember margin scale during upper slide rest cutting to left and right；Then roughing Article 2 helicla flute, this
When small slide plate is moved forward or rearward 9.42mm, during cutting to left and right, first spiral not can exceed that to the moving range of small slide plate
The margin scale of groove adds 9.42mm, and bottom land width is still 1.8mm, until completing Article 2 helicla flute；
Tenth step, two screw threads of smart car worm screw, to drawing size, change worm screw finishing tool, first article of helicla flute of smart car: first car becomes
Simultaneously, then smart car second face, control flume bottom width and groove depth, until completing first helicla flute, and remember little during cutting to left and right
The margin scale of planker, polish Article 2 helicla flute, upper slide rest is moved forward or rearward 9.42mm, first car becomes one side, then
Smart car another side, the distance that upper slide rest moves forward and backward is that the Derivative limit on the left or on the right scale of first helicla flute upper slide rest adds 9.42mm,
Ensure the wide size of groove depth, bottom land and two side roughness；
11st step, whether the normal tooth thickness measuring adjacent two teeth meets drawing size, if meeting, worm tooth shape part is processed
Complete, otherwise, depending on margin value, worm tooth shape is corrected, till meeting size, with file to flank, wedge angle and burr
Finishing；
12nd step, smart car each several part is cylindrical；
13rd step, inspection.
The convenient processing of the present invention is it is easy to operate, and can guarantee that crudy and the machining accuracy of workpiece, improves and produces effect
Rate.
Claims (1)
1. a kind of method for turning of double-thread worm is it is characterised in that comprise the following steps:
The first step, rough forging material, made using No. 45 steel forgings；
Second step, clamps workpiece with scroll chuck, and rough turn blank is cylindrical, using ca6140 lathe process；
3rd step, heat treatment, quenched；
4th step, clamps workpiece, face work centering with scroll chuck, then reverses end for end, car other end, to overall length, hits the heart
Hole；
5th step, with two thimble clampings, each is cylindrical for half smart car, stays 0.5 millimeter of allowance；
6th step, smart car screw thread is cylindrical, length, chamfering are to drawing size；
7th step, chooses worm screw roughing tool, point of a knife width 1.6-1.7 millimeter, nose angle 39-40 degree, cutting edge inclination 20-25 degree；Snail
Bar finishing tool, point of a knife width 1.8mm, 40 degree of nose angle, cutting edge inclination 0-4 degree；
8th step, during rough threading, rotating speed is 40 revs/min, is 12 revs/min during smart car, using emulsion cooling；Using suitable
Vehicle Processing, using upper slide rest scale parted hair method；
9th step, rough turn two worm threads, process first helicla flute with roughing tool cutting to left and right method, until groove depth is
6.1mm, bottom land width 1.8mm, and remember margin scale during upper slide rest cutting to left and right；Then roughing Article 2 helicla flute, this
When small slide plate is moved forward or rearward 9.42mm, during cutting to left and right, first spiral not can exceed that to the moving range of small slide plate
The margin scale of groove adds 9.42mm, and bottom land width is still 1.8mm, until completing Article 2 helicla flute；
Tenth step, two screw threads of smart car worm screw, to drawing size, change worm screw finishing tool, first article of helicla flute of smart car: first car becomes
Simultaneously, then smart car second face, control flume bottom width and groove depth, until completing first helicla flute, and remember little during cutting to left and right
The margin scale of planker, polish Article 2 helicla flute, upper slide rest is moved forward or rearward 9.42mm, first car becomes one side, then
Smart car another side, the distance that upper slide rest moves forward and backward is that the Derivative limit on the left or on the right scale of first helicla flute upper slide rest adds 9.42mm,
Ensure the wide size of groove depth, bottom land and two side roughness；
11st step, whether the normal tooth thickness measuring adjacent two teeth meets drawing size, if meeting, worm tooth shape part is processed
Complete, otherwise, depending on margin value, worm tooth shape is corrected, till meeting size, with file to flank, wedge angle and burr
Finishing；
12nd step, smart car each several part is cylindrical；
13rd step, inspection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611008854.XA CN106363250A (en) | 2016-11-16 | 2016-11-16 | Turning method of two-thread worm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611008854.XA CN106363250A (en) | 2016-11-16 | 2016-11-16 | Turning method of two-thread worm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106363250A true CN106363250A (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611008854.XA Pending CN106363250A (en) | 2016-11-16 | 2016-11-16 | Turning method of two-thread worm |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113941741A (en) * | 2021-11-16 | 2022-01-18 | 天津理工大学 | Processing method of homogenization allowance curved surface of multi-head double-conical enveloping worm |
| CN114074247A (en) * | 2020-08-11 | 2022-02-22 | 浙江挺宇流体设备股份有限公司 | Machining and forming method for quick-opening multi-start thread long and thin valve rod |
| CN115302198A (en) * | 2022-08-04 | 2022-11-08 | 大连德迈仕精密科技股份有限公司 | Method for machining hollow screw shaft |
-
2016
- 2016-11-16 CN CN201611008854.XA patent/CN106363250A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114074247A (en) * | 2020-08-11 | 2022-02-22 | 浙江挺宇流体设备股份有限公司 | Machining and forming method for quick-opening multi-start thread long and thin valve rod |
| CN113941741A (en) * | 2021-11-16 | 2022-01-18 | 天津理工大学 | Processing method of homogenization allowance curved surface of multi-head double-conical enveloping worm |
| CN113941741B (en) * | 2021-11-16 | 2022-08-05 | 天津理工大学 | Processing method of homogenization allowance curved surface of multi-head double-conical enveloping worm |
| CN115302198A (en) * | 2022-08-04 | 2022-11-08 | 大连德迈仕精密科技股份有限公司 | Method for machining hollow screw shaft |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170201 |
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| WD01 | Invention patent application deemed withdrawn after publication |