CN103586649A - Processing technology for non-standard racks - Google Patents
Processing technology for non-standard racks Download PDFInfo
- Publication number
- CN103586649A CN103586649A CN201310588518.7A CN201310588518A CN103586649A CN 103586649 A CN103586649 A CN 103586649A CN 201310588518 A CN201310588518 A CN 201310588518A CN 103586649 A CN103586649 A CN 103586649A
- Authority
- CN
- China
- Prior art keywords
- tooth bar
- nonstandard
- rack
- blank
- rough
- Prior art date
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/26—Racks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a processing technology for non-standard racks. The processing technology includes the following steps that first, manufactured standard racks are forged into blanks; then, the rack blanks are milled roughly in a forged mode; meanwhile, hardening and tempering allowance is reserved on the four faces of each rack blank; the roughly milled rack blanks are heated; the heated rack blanks are milled fine, and machining allowance is reserved on the four faces of each rack blank; rough gear milling is performed, and then a rough gear milling lathe performs aging treatment; rough grinding is performed after the ageing treatment, and finish milling is performed many times; then, aging sizing treatment is performed; finally, fine grinding is performed on the surface of the racks. With the method, the processing technology can guarantee that various technical parameters of the machined racks are greatly improved, requirements of customers can be met, meanwhile, accuracy of the products can be improved, and the percent of pass of the products can be guaranteed.
Description
Technical field
The present invention relates to tooth bar processing method, particularly relate to a kind of nonstandard rack machining process.
Background technology
Original tooth bar processing method is after blank forges, and without heat treatment, is machined directly to tooth bar finished product.But material is in process, and owing to producing heat, deflection is large, the major parameter dimension overproofs such as rack linear degree out of manufacturing, flatness are serious.Not only product quality is not high, and the assembling of returning has below brought great difficulty.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of nonstandard rack machining process, every technical parameter of manufacturing gear strip can be improved greatly, can when meeting customer need, improve the precision of product, guarantees the qualification rate of product.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of nonstandard rack machining process is provided, comprise following operating procedure: first manufacturing specification tooth bar is forged into blank, then described tooth bar blank is forged and rough milled, at described tooth bar blank, stay modified surplus on four sides simultaneously; The described tooth bar blank of rough milling is heat-treated; After described heat treatment, described tooth bar blank is carried out to finish-milling, at tooth bar blank, stay allowance on four sides simultaneously; Rough mill tooth, described in then inciting somebody to action, rough mill tooth bed and carry out Ageing Treatment; After described Ageing Treatment, roughly grind, carry out multiple fine mill teeth; Then carry out timeliness heat treatment; Finally at rack surface, refine.
In a preferred embodiment of the present invention, after described Ageing Treatment, to roughly grind, the number of times that carries out finish-milling tooth is set to 2 ~ 3 times.
In a preferred embodiment of the present invention, in described Ageing Treatment step, include alignment and process.
In a preferred embodiment of the present invention, the material of described nonstandard tooth bar is steel, unimach or No. 45 steel.
In a preferred embodiment of the present invention, the long 3000mm of described nonstandard tooth bar, wide 300mm.
The invention has the beneficial effects as follows: the processing technology that the invention provides a kind of nonstandard tooth bar, the operating procedures such as heat treatment are provided in process, every technical parameter of manufacturing gear strip is improved greatly, can be when meeting customer need, improve the precision of product, guarantee the qualification rate of product.
The specific embodiment
Below the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides following technical scheme.
In one embodiment, a kind of nonstandard rack machining process, comprises following operating procedure: first manufacturing specification tooth bar is forged into blank, then described tooth bar blank is forged and rough milled, stay modified surplus on four sides at described tooth bar blank simultaneously; The described tooth bar blank of rough milling is heat-treated; After described heat treatment, described tooth bar blank is carried out to finish-milling, at tooth bar blank, stay allowance on four sides simultaneously; Rough mill tooth, described in then inciting somebody to action, rough mill tooth bed and carry out Ageing Treatment; After described Ageing Treatment, roughly grind, carry out multiple fine mill teeth; Then carry out timeliness heat treatment; Finally at rack surface, refine.
Be different from prior art, in one embodiment, preferably, after described Ageing Treatment, roughly grind fine grinding, the number of times that carries out finish-milling tooth is set to 2 ~ 3 times, to guarantee the fineness of the flank of tooth.
Preferably, in described Ageing Treatment step, include alignment and process, can further eliminate material deformation stress.
Preferably, in order to guarantee the quality of product, the material of described nonstandard tooth bar is steel, unimach or No. 45 steel; The long 3000mm of described nonstandard tooth bar, wide 300mm.
The present invention, by the setting of various operating procedures, can improve every technical parameter of manufacturing gear strip greatly, can when meeting customer need, improve the precision of product, guarantees the qualification rate of product
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. a nonstandard rack machining process, is characterized in that, comprises following operating procedure: first manufacturing specification tooth bar is forged into blank, then described tooth bar blank is forged and rough milled, stay modified surplus on four sides at described tooth bar blank simultaneously; The described tooth bar blank of rough milling is heat-treated; After described heat treatment, described tooth bar blank is carried out to finish-milling, at tooth bar blank, stay allowance on four sides simultaneously; Rough mill tooth, described in then inciting somebody to action, rough mill tooth bed and carry out Ageing Treatment; After described Ageing Treatment, roughly grind, carry out multiple fine mill teeth; Then carry out timeliness heat treatment; Finally at rack surface, refine.
2. a kind of nonstandard rack machining process according to claim 1, is characterized in that, after described Ageing Treatment, roughly grinds, and the number of times that carries out finish-milling tooth is set to 2 ~ 3 times.
3. a kind of nonstandard rack machining process according to claim 1, is characterized in that, includes alignment and process in described Ageing Treatment step.
4. a kind of nonstandard rack machining process according to claim 1, is characterized in that, the long 3000mm of described nonstandard tooth bar, wide 300mm.
5. a kind of nonstandard rack machining process according to claim 1, is characterized in that, the material of described nonstandard tooth bar is steel, unimach or No. 45 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310588518.7A CN103586649A (en) | 2013-11-21 | 2013-11-21 | Processing technology for non-standard racks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310588518.7A CN103586649A (en) | 2013-11-21 | 2013-11-21 | Processing technology for non-standard racks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103586649A true CN103586649A (en) | 2014-02-19 |
Family
ID=50077081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310588518.7A Pending CN103586649A (en) | 2013-11-21 | 2013-11-21 | Processing technology for non-standard racks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103586649A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708290A (en) * | 2015-03-17 | 2015-06-17 | 上海格尔汽车附件有限公司 | Machining method for rack of electric steering gear |
| CN106435149A (en) * | 2016-08-10 | 2017-02-22 | 常熟天地煤机装备有限公司 | Processing method for preventing heat treatment deformation of tooth bar of short-wall coal cutter |
| CN107952999A (en) * | 2017-12-26 | 2018-04-24 | 重庆齿轮箱有限责任公司 | A kind of processing method of Hardened gear face large modulus cylindrical rack |
| CN110102831A (en) * | 2019-04-28 | 2019-08-09 | 中信重工机械股份有限公司 | A kind of tooth Profile Machining method of the large modulus rack gear of flank of tooth impewdance matching |
| CN113172399A (en) * | 2021-04-26 | 2021-07-27 | 常熟市安迅齿条有限公司 | Machining process of SC type construction elevator rack |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5662731A (en) * | 1979-10-27 | 1981-05-28 | Jidosha Kiki Co Ltd | Manufacture of rack |
| CN101134279A (en) * | 2007-09-26 | 2008-03-05 | 常熟市安迅齿条有限公司 | Method for processing rack bar of the elevator |
| CN101547759A (en) * | 2006-11-02 | 2009-09-30 | 日本精工株式会社 | Rack and production method thereof |
| CN101549450A (en) * | 2009-03-13 | 2009-10-07 | 上海高压油泵厂有限公司 | Method for processing a rack |
| WO2011144442A1 (en) * | 2010-05-20 | 2011-11-24 | Zf Lenksysteme Gmbh | Method for producing a toothed rack |
-
2013
- 2013-11-21 CN CN201310588518.7A patent/CN103586649A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5662731A (en) * | 1979-10-27 | 1981-05-28 | Jidosha Kiki Co Ltd | Manufacture of rack |
| CN101547759A (en) * | 2006-11-02 | 2009-09-30 | 日本精工株式会社 | Rack and production method thereof |
| CN101134279A (en) * | 2007-09-26 | 2008-03-05 | 常熟市安迅齿条有限公司 | Method for processing rack bar of the elevator |
| CN101549450A (en) * | 2009-03-13 | 2009-10-07 | 上海高压油泵厂有限公司 | Method for processing a rack |
| WO2011144442A1 (en) * | 2010-05-20 | 2011-11-24 | Zf Lenksysteme Gmbh | Method for producing a toothed rack |
Non-Patent Citations (3)
| Title |
|---|
| 万建良: "高精度齿条加工方法", 《江苏冶金》 * |
| 李云亭: "42CrMo超长齿条热处理淬火工艺", 《金属加工（热加工）》 * |
| 陈云卿: "大型人字齿条的加工", 《重型机械》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104708290A (en) * | 2015-03-17 | 2015-06-17 | 上海格尔汽车附件有限公司 | Machining method for rack of electric steering gear |
| CN104708290B (en) * | 2015-03-17 | 2017-07-07 | 上海格尔汽车科技发展有限公司 | A kind of processing method of electric steering gear tooth bar |
| CN106435149A (en) * | 2016-08-10 | 2017-02-22 | 常熟天地煤机装备有限公司 | Processing method for preventing heat treatment deformation of tooth bar of short-wall coal cutter |
| CN107952999A (en) * | 2017-12-26 | 2018-04-24 | 重庆齿轮箱有限责任公司 | A kind of processing method of Hardened gear face large modulus cylindrical rack |
| CN107952999B (en) * | 2017-12-26 | 2019-06-07 | 重庆齿轮箱有限责任公司 | A kind of processing method of Hardened gear face large modulus cylindrical rack |
| CN110102831A (en) * | 2019-04-28 | 2019-08-09 | 中信重工机械股份有限公司 | A kind of tooth Profile Machining method of the large modulus rack gear of flank of tooth impewdance matching |
| CN110102831B (en) * | 2019-04-28 | 2020-08-11 | 中信重工机械股份有限公司 | Tooth profile processing method of large-modulus rack with tooth surface induction quenching |
| CN113172399A (en) * | 2021-04-26 | 2021-07-27 | 常熟市安迅齿条有限公司 | Machining process of SC type construction elevator rack |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140219 |
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| RJ01 | Rejection of invention patent application after publication |