CN103212960B - Manufacturing method for equal-lead variable-tooth thickness worm - Google Patents
Manufacturing method for equal-lead variable-tooth thickness worm Download PDFInfo
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- CN103212960B CN103212960B CN201310127949.3A CN201310127949A CN103212960B CN 103212960 B CN103212960 B CN 103212960B CN 201310127949 A CN201310127949 A CN 201310127949A CN 103212960 B CN103212960 B CN 103212960B
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- Prior art keywords
- worm
- tooth
- lead
- tooth thickness
- equal
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 9
- 230000008439 repair process Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 2
- SCTOGZQMHJOYJY-UHFFFAOYSA-N [Ti].[Cr].[Mn] Chemical compound [Ti].[Cr].[Mn] SCTOGZQMHJOYJY-UHFFFAOYSA-N 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Landscapes
- Gears, Cams (AREA)
Abstract
The invention relates to the field of worms, in particular to a manufacturing method for an equal-lead variable-tooth thickness worm. A material, such as 45 steel, 40 chromium (40Cr) or 20 chromium manganese titanium (20CrMnTi) and the like, is adopted by the worm. The manufacturing method for the equal-lead variable-tooth thickness worm comprises the following steps of clipping an excircle I on a numerically controlled relieving lathe; supporting a center hole at one end by using a centre, and performing turning on an equal-lead equal-tooth thickness worm, wherein the lead of the worm is recorded as L; clipping the excircle I on the numerically controlled relieving lathe; supporting a center hole at the other end by using the centre, and performing right-to-left turning of which the lead is L+deltaL at the right side of a worm tooth; subsequently, performing right-to-left turning of which the lead is L-deltaL at the left side of the worm tooth; performing vacuum hardening; repairing and grinding the center holes; respectively supporting the two center holes on the numerically controlled relieving lathe by using the two centres, and performing right-to-left grinding of which the lead is L+deltaL at the right side of the worm tooth; and subsequently, performing right-to-left grinding of which the lead is L-deltaL at the left side of the worm tooth. The manufacturing method for the equal-lead variable-tooth thickness worm is reasonable in manufacturing process and high in worm precision.
Description
Technical field
The present invention relates to worm screw field, particularly a kind of manufacture method of equal lead worm with variable tooth thickness.
Background technology
Worm and gear is applied very extensive in machinery industry, the transverse tooth thickness such as common worm screw is generally, and the advantage of worm with variable tooth thickness is fairly obvious: when worm and gear is in running, because wearing and tearing can cause the increase of drive gap, now, only suitably need adjust the axial location of worm screw, the transmission of worm screw just can be made to meet original accuracy requirement, and without the need to changing the components such as worm and wheel.Common worm with variable tooth thickness helical pitch is change, and the variation tendency thickening or thinning successively vertically with its transverse tooth thickness is consistent, and between its root circle axial tooth, width also becomes large successively or diminishes, and is what is called " Changeable Lead worm with variable tooth thickness ".Have not yet to see the bibliographical information of relevant " equal lead worm with variable tooth thickness---worm screw helical pitch is constant, and transverse tooth thickness is thickening or thinning successively vertically, and between its root circle axial tooth, width diminishes successively on the contrary or becomes large ".
Summary of the invention
In order to address this problem, the invention provides a kind of manufacture method of equal lead worm with variable tooth thickness, accurately process equal lead worm with variable tooth thickness by numerically controlled lathe, numerical control relieving lathe energy convenience and high-efficiency.
The technical solution adopted in the present invention is:
The worm screw of the manufacture method of described a kind of equal lead worm with variable tooth thickness selects the materials such as 45 steel, 40Cr or 20CrMnTi, rough turn processing on numerically controlled lathe; Modified; Numerically controlled lathe presss from both sides one, turning, end face, centering; Numerically controlled lathe presss from both sides other end, turning, end face, centering; Numerically controlled lathe toply withstands two centre bores, cylindrical I, described cylindrical II, described cylindrical III described in finish turning respectively with two; Numerical control relieving lathe presss from both sides described cylindrical I, and with the top centre bore withstanding other end, the transverse tooth thickness worm screws such as Vehicle Processing equal lead, note worm screw helical pitch is L; Numerical control relieving lathe presss from both sides described cylindrical I, and with the top centre bore withstanding other end, carrying out helical pitch from right to left on the right side of worm tooth is L+ Δ L turning; Numerical control relieving lathe presss from both sides described cylindrical I, and with the top centre bore withstanding other end, carrying out helical pitch from right to left in the left side of worm tooth is L-Δ L turning; Vacuum hardening; Repair center lapping; Cylindrical grinder toply withstands two centre bores with two, refines described cylindrical II, grind described cylindrical I, described cylindrical III; Numerical control relieving lathe toply withstands two centre bores respectively with two, and carrying out helical pitch from right to left on the right side of worm tooth is L+ Δ L grinding; Top withstand two centre bores respectively at numerical control relieving lathe with two, carrying out helical pitch from right to left in the left side of worm tooth is L-Δ L grinding; Through being up to the standards.
The invention has the beneficial effects as follows:
The manufacture method manufacturing process of described a kind of equal lead worm with variable tooth thickness is reasonable, worm accuracy is high.
Accompanying drawing explanation
Further illustrate below in conjunction with figure of the present invention:
Fig. 1 is the structural representation of the worm screw of described a kind of equal lead worm with variable tooth thickness and manufacture method.
The structural representation of Fig. 2 to be helical pitch be transverse tooth thickness worm screws such as the equal lead of L.
Fig. 3 is that to carry out helical pitch be worm structure schematic diagram after the L turning of L+ Δ or grinding.
Fig. 4 is that to carry out helical pitch be worm structure schematic diagram after the L turning of L-Δ or grinding.
In figure, 1. cylindrical I, 2. cylindrical II, 3. cylindrical III.
Detailed description of the invention
The worm screw of the manufacture method of described a kind of equal lead worm with variable tooth thickness selects the materials such as 45 steel, 40Cr or 20CrMnTi, rough turn processing on numerically controlled lathe; Modified; Numerically controlled lathe presss from both sides one, turning, end face, centering; Numerically controlled lathe presss from both sides other end, turning, end face, centering; Numerically controlled lathe toply withstands two centre bores, cylindrical I (1), described cylindrical II (2), described cylindrical III (3) described in finish turning respectively with two; Numerical control relieving lathe presss from both sides described cylindrical I (1), and with the top centre bore withstanding other end, the transverse tooth thickness worm screws such as Vehicle Processing equal lead, note worm screw helical pitch is L, sees Fig. 2; Numerical control relieving lathe presss from both sides described cylindrical I (1), and with the top centre bore withstanding other end, carrying out helical pitch from right to left on the right side of worm tooth is L+ Δ L turning, sees Fig. 3; Numerical control relieving lathe presss from both sides described cylindrical I (1), and with the top centre bore withstanding other end, carrying out helical pitch from right to left in the left side of worm tooth is L-Δ L turning, sees Fig. 4; Vacuum hardening; Repair center lapping; Cylindrical grinder toply withstands two centre bores with two, refines described cylindrical II (2), grind described cylindrical I (1), described cylindrical III (3); Numerical control relieving lathe toply withstands two centre bores respectively with two, and carrying out helical pitch from right to left on the right side of worm tooth is L+ Δ L grinding, sees Fig. 3; Top withstand two centre bores respectively at numerical control relieving lathe with two, carrying out helical pitch from right to left in the left side of worm tooth is L-Δ L grinding, sees Fig. 4; Through being up to the standards.
Claims (1)
1. the manufacture method of an equal lead worm with variable tooth thickness, described worm screw selects 45 steel, 40Cr or 20CrMnTi, it is characterized in that: on numerical control relieving lathe, press from both sides cylindrical I, with the top centre bore withstanding other end, the transverse tooth thickness worm screws such as Vehicle Processing equal lead, note worm screw helical pitch is L; Numerical control relieving lathe presss from both sides described cylindrical I, and with the top centre bore withstanding other end, carrying out helical pitch from right to left on the right side of worm tooth is L+ △ L turning; Numerical control relieving lathe presss from both sides described cylindrical I, and with the top centre bore withstanding other end, carrying out helical pitch from right to left in the left side of worm tooth is L-△ L turning; Vacuum hardening; Repair center lapping; Numerical control relieving lathe toply withstands two centre bores respectively with two, and carrying out helical pitch from right to left on the right side of worm tooth is L+ △ L grinding; Top withstand two centre bores respectively at numerical control relieving lathe with two, carrying out helical pitch from right to left in the left side of worm tooth is L-△ L grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310127949.3A CN103212960B (en) | 2013-05-17 | 2013-05-17 | Manufacturing method for equal-lead variable-tooth thickness worm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310127949.3A CN103212960B (en) | 2013-05-17 | 2013-05-17 | Manufacturing method for equal-lead variable-tooth thickness worm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103212960A CN103212960A (en) | 2013-07-24 |
| CN103212960B true CN103212960B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310127949.3A Expired - Fee Related CN103212960B (en) | 2013-05-17 | 2013-05-17 | Manufacturing method for equal-lead variable-tooth thickness worm |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940355B (en) * | 2019-03-29 | 2021-05-18 | 上海格尔汽车科技发展有限公司 | Machining method of rack of ball screw electric power steering gear |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039199A (en) * | 1988-07-11 | 1990-01-31 | 张佩勤 | Milling cutter for variable-pitch band saw blade and manufacture method thereof |
| US6176148B1 (en) * | 1998-07-15 | 2001-01-23 | Tianjin Everbest Gear Co., Ltd. | Variable tooth worm |
| CN102689054A (en) * | 2012-05-25 | 2012-09-26 | 上海第二工业大学 | Processing method of tooth thickness-variable gear with intersecting axles and hob of tooth thickness-variable gear |
| TW201315552A (en) * | 2011-10-07 | 2013-04-16 | Nat Univ Chung Cheng | Variable tooth thickness worm type tool and processing method thereof |
-
2013
- 2013-05-17 CN CN201310127949.3A patent/CN103212960B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1039199A (en) * | 1988-07-11 | 1990-01-31 | 张佩勤 | Milling cutter for variable-pitch band saw blade and manufacture method thereof |
| US6176148B1 (en) * | 1998-07-15 | 2001-01-23 | Tianjin Everbest Gear Co., Ltd. | Variable tooth worm |
| TW201315552A (en) * | 2011-10-07 | 2013-04-16 | Nat Univ Chung Cheng | Variable tooth thickness worm type tool and processing method thereof |
| CN102689054A (en) * | 2012-05-25 | 2012-09-26 | 上海第二工业大学 | Processing method of tooth thickness-variable gear with intersecting axles and hob of tooth thickness-variable gear |
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| Publication number | Publication date |
|---|---|
| CN103212960A (en) | 2013-07-24 |
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Effective date of registration: 20171214 Address after: 518000 Guangdong Province, Shenzhen New District of Longhua City, Dalang street, Longsheng Gold Dragon Road community e-commerce incubator exhibition Tao Commercial Plaza E block 706 Patentee after: Shenzhen step Technology Transfer Center Co., Ltd. Address before: 321007 Zhejiang province Jinhua Wuzhou Street No. 1188 Patentee before: Jinhua College of Vocation and Technology |
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Effective date of registration: 20171227 Address after: 401220 No. 16 group 30 of Yantan village, Changshou District, Chongqing Patentee after: Li Yizhong Address before: 518000 Guangdong Province, Shenzhen New District of Longhua City, Dalang street, Longsheng Gold Dragon Road community e-commerce incubator exhibition Tao Commercial Plaza E block 706 Patentee before: Shenzhen step Technology Transfer Center Co., Ltd. |
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Effective date of registration: 20180821 Address after: 518000 Guangdong Shenzhen Longhua New District big wave street Longsheng community Tenglong road gold rush e-commerce incubation base exhibition hall E commercial block 706 Patentee after: Shenzhen step Technology Transfer Center Co., Ltd. Address before: 401220 No. 16 group 30 of Yantan village, Changshou District, Chongqing Patentee before: Li Yizhong |
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Effective date of registration: 20181019 Address after: 313000 No. 555, Ah Xiang Road, Zhili Town, Huzhou, Zhejiang Patentee after: Grand machinery manufacturing (Huzhou) Co., Ltd. Address before: 518000 Guangdong Shenzhen Longhua New District big wave street Longsheng community Tenglong road gold rush e-commerce incubation base exhibition hall E commercial block 706 Patentee before: Shenzhen step Technology Transfer Center Co., Ltd. |
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Granted publication date: 20150617 Termination date: 20200517 |