CN104313289A - Quenching mistake proofing device for steering gear rack rod and mistake proofing method - Google Patents
Quenching mistake proofing device for steering gear rack rod and mistake proofing method Download PDFInfo
- Publication number
- CN104313289A CN104313289A CN201410604896.4A CN201410604896A CN104313289A CN 104313289 A CN104313289 A CN 104313289A CN 201410604896 A CN201410604896 A CN 201410604896A CN 104313289 A CN104313289 A CN 104313289A
- Authority
- CN
- China
- Prior art keywords
- steering gear
- gear rack
- rack bar
- thimble
- quenching
- 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.)
- Granted
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/32—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for gear wheels, worm wheels, or the like
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
Abstract
The invention discloses a quenching mistake proofing device for a steering gear rack rod and a mistake proofing method. The quenching mistake proofing device comprises a positioning rod, wherein one end of the positioning rod is fixed on a base; the end part of the other end of the positioning rod is a positioning end which is matched with an inner hole in a quenching end of the steering gear rack rod for positioning; an ejector pin extending into the inner hole of the quenching end of the steering gear rack rod is arranged at the end part of the positioning end of the positioning rod; the quenching mistake proofing method is used for correctly quenching the rack rod by using the quenching mistake proofing device for the steering gear rack rod; through the adoption of the quenching mistake proofing device for the steering gear rack rod, disclosed by the invention, the steering gear rack rod is correctly positioned during quenching of the steering gear rack rod so as to prevent the wrong quenching part of the steering gear rack rod to ensure the correct processing of the steering gear rack rod and the quality of the steering gear rack rod; therefore, a cutter is prevented from being damaged during the processing of the steering gear rack rod, and the processing cost of the steering gear rack rod is greatly reduced.
Description
Technical field
The present invention relates to steering gear rack locating and machining technology, be specifically related to a kind of steering gear rack bar quenching error prevention device and error-preventing method.
Background technology
Steering gear rack is processed by steering gear rack bar, and steering gear rack bar is before tooth bar is undressed, and rack bar two ends are polished rod structure.Before rack work, quench treatment need be carried out to tooth bar position non-on rack bar, to improve structural strength and the hardness of steering gear rack, improve the quality of products.Because rack bar two ends are polished rod structure, during rack bar quenching location, rack bar two ends are easily taken anti-by staff, cause rack bar upper rack position to carry out quench treatment.Through the rack bar of quench treatment in next step manufacturing gear strip process, because tooth bar position hardness increases, cause rack machining cutter to damage, rack machining cutter is extremely expensive, and great cost can be caused like this to waste.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of and ensure steering gear rack bar quenching accurate positioning, prevent steering gear rack bar quenching error prevention device and the error-preventing method of tool damage during steering gear rack bar rack work.
To achieve these goals, the technical solution used in the present invention is:
This steering gear rack bar quenching error prevention device, comprise backstay, described backstay one end is fixed on base, the other end end of described backstay is the positioning end with steering gear rack bar quenched end inner hole location, and the positioning end end of described backstay is provided with the thimble stretched in described steering gear rack bar quenched end endoporus.
The positioning end of described backstay is conical structure.
Described thimble and described backstay are integral type structure.
Described thimble length is less than steering gear rack bar quenched end bore depth, and described thimble length is greater than the blind hole depth with steering gear rack bar tooth bar place end.
Described thimble is column structure, and described thimble end is provided with leads fillet.
Described thimble diameter is less than steering gear rack bar quenched end endoporus aperture.
The end, one end that described backstay is connected with base is the cylinder of band tapering, and described base is provided with the open holes installing described backstay, and one end that described backstay is connected with base is provided with positioning step.
This steering gear rack bar quenching error-preventing method, utilize above-mentioned steering gear rack bar quenching error prevention device to realize, specific operation process is: be fixed on base by backstay one end, and thimble is positioned on the other end of backstay; Get steering gear rack bar, steering gear rack bar one end is inserted on the thimble on backstay, and as thimble cannot insert in steering gear rack bar completely, then steering gear rack bar quenching position on an opposite end; Adjustment steering gear rack bar, inserts in the other end of steering gear rack bar by thimble, on backstay, thimble and positioning end and steering gear rack bar quenched end inner hole, realize the location of steering gear rack bar quenched end, carry out hardening step; As thimble normally inserts in steering gear rack bar, then steering gear rack bar quenching position accurate positioning, on backstay, thimble and positioning end and steering gear rack bar quenched end inner hole, realize the location of steering gear rack bar quenched end, carry out hardening step.
The invention has the advantages that: this steering gear rack bar quenching error prevention device and error-preventing method, according to the constructional feature of steering gear rack bar, adopt backstay, backstay arranges thimble, thimble can insert steering gear rack bar quenched end endoporus completely, and cannot insert blind hole on the end of steering gear rack bar tooth bar place completely; When steering gear rack bar quenches, realize the correct location of steering gear rack bar, steering gear rack bar quenching position can be avoided to mistake; And then ensure the correct processing of steering gear rack bar, while ensureing steering gear rack quality, prevent steering gear rack bar when manufacturing gear strip, tool damage, the tooling cost reducing steering gear rack of high degree.
Accompanying drawing explanation
Mark in the content expressed each width accompanying drawing of specification sheets of the present invention below and figure is briefly described:
Fig. 1 is the structural representation of the backstay of steering gear rack bar of the present invention quenching error prevention device.
Fig. 2 is the structural representation of the base of steering gear rack bar of the present invention quenching error prevention device.
Fig. 3 is the mounting structure schematic diagram of steering gear rack bar of the present invention quenching error prevention device.
Fig. 4 is the structural representation of the steering gear rack bar of locating of steering gear rack bar quenching error prevention device of the present invention.
Mark in above-mentioned figure is:
1, backstay, 2, positioning end, 3, thimble, 4, lead fillet, 5, positioning step, 6, the cylinder of band tapering, 7, base, 8, open holes, 9, tooth bar place end, 10, quenched end, 11, blind hole, 12, endoporus, 13, positioning step.
Embodiment
Contrast accompanying drawing below, by the description to optimum embodiment, the specific embodiment of the present invention is described in further detail.
As Figure 1-Figure 4, this steering gear rack bar quenching error prevention device, steering gear rack bar quenched end 10 has endoporus 12, and steering gear rack bar tooth bar place end 9 has blind hole 11, and the degree of depth of endoporus 12 is greater than blind hole 11 greatly; Comprise backstay 1, backstay 1 one end is fixed on base 7, the other end end of backstay 1 is the positioning end 2 coordinating location with steering gear rack bar quenched end 10 endoporus 12, and positioning end 2 end of backstay 1 is provided with the thimble 3 stretched in steering gear rack bar quenched end 10 endoporus 12.During the quenching of steering gear rack bar, backstay 1 one aspect is for realizing the location of steering gear rack bar; On the other hand, for preventing steering gear rack bar quenching position from mistaking, thimble 3 is provided with at the positioning end 2 of backstay 1; Steering gear rack bar is when quenching location, and as thimble 3 cannot insert in steering gear rack bar completely, then steering gear rack bar quenching position on an opposite end; Adjustment steering gear rack bar, inserts in the other end of steering gear rack bar by thimble 3, on backstay 1, thimble 3 and positioning end 2 and steering gear rack bar quenched end 10 endoporus 12 coordinate, and realize the location of steering gear rack bar quenched end 10, carry out hardening step.
This steering gear rack bar quenching error prevention device, according to the constructional feature of steering gear rack bar, adopt backstay 1, backstay 1 is arranged thimble 3, thimble 3 can insert the endoporus 12 of steering gear rack bar quenched end 10 completely, and cannot insert the blind hole 11 of steering gear rack bar tooth bar place end 9 completely; When steering gear rack bar quenches, realize the correct location of steering gear rack bar, steering gear rack bar quenching position can be avoided to mistake; And then ensure the correct processing of steering gear rack bar, while ensureing steering gear rack quality, prevent steering gear rack bar when manufacturing gear strip, tool damage, the tooling cost reducing steering gear rack of high degree.
The positioning end 2 of backstay 1 is conical structure; Positioning end 2 is conical structure, and not only positioning end 2 inserts steering gear rack bar quenched end 10 endoporus 12 convenience, and location is convenient, and backstay 1 reliability of positioning is better.After backstay 1 inserts steering gear rack bar, adopt compact heap to compress the other end of steering gear rack bar, the location during quenching of steering gear rack bar can be realized.
Thimble 3 and backstay 1 are integral type structure; Thimble 3 and backstay 1 one-body molded, processing and fabricating is convenient, and thimble 3 structural strength is better, not frangibility.
Thimble 3 length is less than steering gear rack bar quenched end 10 endoporus 12 degree of depth, and thimble 3 length is greater than steering gear rack bar tooth bar place end 9 blind hole 11 degree of depth; Such thimble 3 can insert steering gear rack bar quenched end 10 endoporus 12 completely, and cannot insert on steering gear rack bar tooth bar place end 9 in blind hole 11 completely, utilizes this characteristic accurately can judge steering gear rack bar quenching position fast.
Thimble 3 is column structure, and thimble 3 end is provided with leads fillet 4; Thimble 3 end has leads fillet 4, and when the wrong plug of steering gear rack bar, thimble 3 can not cause damage to blind hole 11 inwall on steering gear rack bar tooth bar place end 9, ensures steering gear rack quality product.
Thimble 3 diameter is less than steering gear rack bar quenched end 10 endoporus 12 aperture; Facilitate thimble 3 quick insertion, the installation location of steering gear rack bar can be realized fast, enhance productivity.
The end, one end that backstay 1 is connected with base 7 is the cylinder 6 of band tapering, and base 7 is provided with the open holes 8 installing backstay 1, and one end that backstay 1 is connected with base 7 is provided with positioning step 13.Positioning step 13 and base 7 are integral type structure.Cylinder 6 with tapering inserts in open holes 8, and positioning step 13 is stuck on base 7, under the cylinder 6 and positioning step 13 acting in conjunction of band tapering, realizes the reliable fixing of backstay 1.
This steering gear rack bar quenching error-preventing method, utilize above-mentioned steering gear rack bar quenching error prevention device to realize, specific operation process is: be fixed on base 7 by backstay 1 one end, and thimble 3 is positioned on the other end of backstay 1; Get steering gear rack bar, steering gear rack bar one end is inserted on the thimble 3 on backstay 1, and as thimble 3 cannot insert in steering gear rack bar, then steering gear rack bar quenching position on an opposite end; Adjustment steering gear rack bar, inserted by thimble 3 in the other end of steering gear rack bar, on backstay 1, the endoporus 12 of thimble 3 and positioning end 2 and steering gear rack bar quenched end 10 coordinates, and realizes the location of steering gear rack bar quenched end 10, carries out hardening step; As thimble 3 normally inserts in steering gear rack bar, then steering gear rack bar quenching position accurate positioning, on backstay 1, thimble 3 and positioning end 2 and steering gear rack bar quenched end 10 endoporus 12 coordinate, and realize the location of steering gear rack bar quenched end, carry out hardening step.
This steering gear rack bar quenching error-preventing method, according to the constructional feature of steering gear rack bar, adopt backstay 1, backstay 1 is arranged thimble 3, thimble 3 can insert steering gear rack bar quenched end 10 endoporus 12 completely, and cannot insert the blind hole 11 of steering gear rack bar tooth bar place end 9 completely; When steering gear rack bar quenches, realize the correct location of steering gear rack bar, steering gear rack bar quenching position can be avoided to mistake; And then ensure the correct processing of steering gear rack bar, while ensureing steering gear rack quality, prevent steering gear rack bar when manufacturing gear strip, tool damage, the tooling cost reducing steering gear rack of high degree.
Obvious specific implementation of the present invention is not subject to the restrictions described above, as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out, all within protection scope of the present invention.
Claims (8)
1. a steering gear rack bar quenching error prevention device, it is characterized in that: comprise backstay, described backstay one end is connected on base, the other end end of described backstay is the positioning end with steering gear rack bar quenched end inner hole location, and the positioning end end of described backstay is provided with the thimble stretched in described steering gear rack bar quenched end endoporus.
2. steering gear rack bar quenching error prevention device as claimed in claim 1, is characterized in that: the positioning end of described backstay is conical structure.
3. steering gear rack bar quenching error prevention device as claimed in claim 1, is characterized in that: described thimble and described backstay are integral type structure.
4. steering gear rack bar quenching error prevention device as claimed in claim 1, is characterized in that: described thimble length is less than steering gear rack bar quenched end bore depth, and described thimble length is greater than the blind hole depth of steering gear rack bar tooth bar place end.
5. steering gear rack bar quenching error prevention device as claimed in claim 1, it is characterized in that: described thimble is column structure, described thimble end is provided with leads fillet.
6. the steering gear rack bar quenching error prevention device as described in any one of claim 1-5, is characterized in that: described thimble diameter is less than steering gear rack bar quenched end endoporus aperture.
7. steering gear rack bar quenching error prevention device as claimed in claim 6, it is characterized in that: the end, one end that described backstay is connected with base is the cylinder of band tapering, described base is provided with the open holes installing described backstay, and one end that described backstay is connected with base is provided with positioning step.
8. a steering gear rack bar quenching error-preventing method, the quenching of the steering gear rack bar described in any one of claim 1-7 error prevention device is utilized to realize, it is characterized in that: specific operation process is: be fixed on base by backstay one end, thimble is positioned on the other end of backstay; Get steering gear rack bar, steering gear rack bar one end is inserted on the thimble on backstay, and as thimble cannot insert in steering gear rack bar completely, then steering gear rack bar quenching position on an opposite end; Adjustment steering gear rack bar, inserts in the other end of steering gear rack bar by thimble, on backstay, thimble and positioning end and steering gear rack bar quenched end inner hole, realize the location of steering gear rack bar quenched end, carry out hardening step; As thimble normally inserts in steering gear rack bar, then steering gear rack bar quenching position accurate positioning, on backstay, thimble and positioning end and steering gear rack bar quenched end inner hole, realize the location of steering gear rack bar quenched end, carry out hardening step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604896.4A CN104313289B (en) | 2014-10-30 | 2014-10-30 | A kind of steering gear rack bar quenching error prevention device and error-preventing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410604896.4A CN104313289B (en) | 2014-10-30 | 2014-10-30 | A kind of steering gear rack bar quenching error prevention device and error-preventing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104313289A true CN104313289A (en) | 2015-01-28 |
| CN104313289B CN104313289B (en) | 2016-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410604896.4A Active CN104313289B (en) | 2014-10-30 | 2014-10-30 | A kind of steering gear rack bar quenching error prevention device and error-preventing method |
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| CN (1) | CN104313289B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009052552A1 (en) * | 2007-10-25 | 2009-04-30 | Bishop Innovation Limited | Method and apparatus for manufacturing composite steering racks |
| CN101899561A (en) * | 2010-08-03 | 2010-12-01 | 宫电高周波设备（上海）有限公司 | Rack quenching clamp |
| CN102689194A (en) * | 2012-05-28 | 2012-09-26 | 周卫星 | Positioning fixture for comprehensive metal machining for differential gear blank of differential mechanism |
| CN202572044U (en) * | 2012-01-31 | 2012-12-05 | 无锡灵山机械有限公司 | Macro-axis inner hole grinding pointed clamp |
| CN202877979U (en) * | 2012-11-19 | 2013-04-17 | 十堰合骏实业有限公司 | Turning fixture for valve sleeve of steering gear |
| CN103659388A (en) * | 2012-09-07 | 2014-03-26 | 陕西汉江机床有限公司 | Workpiece installing and positioning fixture of internal thread grinding machine |
| CN203639506U (en) * | 2013-11-27 | 2014-06-11 | 湖北三环锻造有限公司 | Positioning device of medium frequency induction quenching machining tool |
-
2014
- 2014-10-30 CN CN201410604896.4A patent/CN104313289B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009052552A1 (en) * | 2007-10-25 | 2009-04-30 | Bishop Innovation Limited | Method and apparatus for manufacturing composite steering racks |
| CN101899561A (en) * | 2010-08-03 | 2010-12-01 | 宫电高周波设备（上海）有限公司 | Rack quenching clamp |
| CN202572044U (en) * | 2012-01-31 | 2012-12-05 | 无锡灵山机械有限公司 | Macro-axis inner hole grinding pointed clamp |
| CN102689194A (en) * | 2012-05-28 | 2012-09-26 | 周卫星 | Positioning fixture for comprehensive metal machining for differential gear blank of differential mechanism |
| CN103659388A (en) * | 2012-09-07 | 2014-03-26 | 陕西汉江机床有限公司 | Workpiece installing and positioning fixture of internal thread grinding machine |
| CN202877979U (en) * | 2012-11-19 | 2013-04-17 | 十堰合骏实业有限公司 | Turning fixture for valve sleeve of steering gear |
| CN203639506U (en) * | 2013-11-27 | 2014-06-11 | 湖北三环锻造有限公司 | Positioning device of medium frequency induction quenching machining tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104313289B (en) | 2016-11-16 |
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