CN105312584A - Method for making slide sleeve ring - Google Patents
Method for making slide sleeve ring Download PDFInfo
- Publication number
- CN105312584A CN105312584A CN201510461294.2A CN201510461294A CN105312584A CN 105312584 A CN105312584 A CN 105312584A CN 201510461294 A CN201510461294 A CN 201510461294A CN 105312584 A CN105312584 A CN 105312584A
- Authority
- CN
- China
- Prior art keywords
- stampings
- chuck
- machining
- sleeve ring
- sliding sleeve
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/08—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of toothed articles, e.g. gear wheels; of cam discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
- B22F5/106—Tube or ring forms
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/005—Article surface comprising protrusions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention relates to a method for making a slide sleeve ring; metal powders are sintered so as to form the slide sleeve ring (12) through moulding; pressed product (10) can be made under pressure effect in a pressing process, can be cut and processed under pressing fixed state, and is sintered so as to form the moulding piece.
Description
Technical field
The present invention relates to a kind of method of sliding sleeve ring of the sintering forming element form for the manufacture of speed changer.
Background technology
In lock unit, sliding sleeve ring is used between sync-body and to be switched shift gear, produce antitorque connection.Sliding sleeve ring is annular element, has: interior teeth portion, and this interior teeth portion can to engage in sync-body and outer toothed portion on shift gear simultaneously; And external toothing geometry, selector fork acts on this external toothing geometry, thus is moving up sliding sleeve ring and pushing away from it when plucking gear towards the side of shift gear in the axial direction.
Traditionally, sliding sleeve by pipe portion section by rolling process, spreading with cut processing method manufacture.Also can be pre-formed rough forging, then it cut processing.
Also known sintering method manufactures sliding sleeve ring.At this, first loaded in pressing mold by metal dust, and be fixed to stampings (green compact) under pressure, then it be sintered, and wherein, metallic particles connects lastingly.Then, the sinter therefore formed can be placed in its final strength.Manufacture sliding sleeve according to sintering method to have superiority in processing cost, because by manufacturing the part that stampings can bear moulding in pressing mold relative to the tradition processing of pipe portion section.
But, the whole geometry of the sliding sleeve ring that can not be shaped in simple pressing process.The structure of the undercut had about stripping direction is, that is, only by structure that the movement of tool that radially outward points to produces in this problem.Reserve part (Hinterlegungen) in sliding sleeve ring in interior teeth portion and slot scraping (Rastiernuten) and belong to the structure of problem of the type for the excircle engaging groove of selector fork.
DE10250432A1 proposes, presintering stampings after pressing, but does not still finally complete sintering and then carry out cutting processing.At this, for manufacturing interior teeth portion and reserve part can use internal cycloid milling method, as described in EP0550877A1.After presintering, component has had obviously larger shape stability after directly extruding, and component can be processed when injury-free.But shortcoming is, the component of presintering also has relatively high intensity, the processing for inserting geometry is expended time in and expensive.
Summary of the invention
At this, the present invention should realize remedying.
To this, setting is used for the method for the sliding sleeve ring being manufactured sintering forming element form by powdered-metal, has following step:
-in pressing process, manufacture stampings under pressure;
-suppressing machining stampings under stationary state; And
-then sinter stampings to manufacture sintering forming element.
Namely, according to the present invention, stampings by following manner before sintering, and thus also before presintering, processed under underdone (gr ü n: life) state after pressing, that is, the bonding of powder particle produces by means of only the frictional force applied when extruding substantially, but the connection also not by occurring between metallic particles during sintering produces.Stampings are relatively soft in this condition, and making only needs little elaboration power, and it protects the instrument used.
Such as, interior teeth portion belongs to the geometry producing when machining stampings and/or process together with the reserve part that may be arranged on wherein and slot scraping.But, also can produce the meshing geometry structure of the selector fork on periphery, that is, selector fork groove or selector fork fishplate bar.
Can process stampings time insert all desired by geometry.
After the process, under heat effect, stampings are sintered.At this, sliding sleeve ring is placed in its final strength simultaneously, and the operation sintering and fix can be combined.
Pressing process and afterwards machining stampings time, at least the outline of sintering forming element is finally determined on substep ground.May at least abandon completely reprocessing the machinery of sintered body in substep ground.
In order to process the stampings of rapid wear well, stampings were preferably accommodated in chuck before machining, were supported on chuck to stampings planar.Confirm, it is good for placing relative to only point type stampings machining when planar support before sintering.
At this, applied by chuck, the active force be applied on stampings is matched with shape and the intensity of stampings.In a preferred embodiment, supervisory function bit is to the confining force on stampings, and this confining force is limited to predetermined maximum force.
Preferably, chuck is made up of multiple part, these part relative motions, thus holds stampings.By the part of multiple relative motions of such as jaw, also can reliably clamp annular stampings, and support axially and/or on radially-outer surface.
In a possible design, each several part of chuck diametrically moves, and stampings are circumferentially supported at it, wherein, preferably at least approximately completely circumferentially to support.In this type herein, stampings can enter from axial direction, such as, thus in manufacturing teeth portion and slot scraping.
Stampings can on its radially-outer surface in two of sliding sleeve ring axial side or be supported in chuck in the meshing geometry structure manufactured, and making such as can by teeth portion in plain mode processing.
Advantageously, chuck moves during machining together with stampings, particularly rotates together, thus the active force such as simplifying internal cycloid milling method or minimize stampings.
Such as, if should manufacture the outside geometry in footpath for selector fork, meshing geometry structure, then multiple stampings can axially be loaded in chuck abreast, and are cut processing in same clamping process, and wherein, stampings preferably support in the axial direction mutually.Process time can be saved by which.
When machining, stampings can axially be extruded further, make not occur loss of strength.
Accompanying drawing explanation
Below with reference to the accompanying drawings the present invention is further described by two embodiments.Shown in the drawings:
Fig. 1 is according to the perspective schematic view of the processed sliding sleeve-stampings by means of sliding sleeve ring made according to the method for the present invention of the first embodiment;
Sliding sleeve-stampings in Fig. 2 Fig. 1 are loaded into the schematic cross sectional view of chuck; And
Fig. 3 is by the perspective schematic view of the processed sliding sleeve-stampings of the sliding sleeve ring made according to the method for the present invention of the second embodiment.
Detailed description of the invention
Fig. 1 illustrates the processed stampings 10 of the sliding sleeve ring 12 of sliding sleeve.In sintering process, substantially when not changing its outline, form the sliding sleeve ring of the sliding sleeve made from sliding sleeve ring 12.Because the sliding sleeve ring of sintering seems identical with processed stampings 10, therefore at this, sliding sleeve ring made is not shown individually.
In order to manufacture stampings 10, first the metal material of powder shape is extruded under pressure in unshowned tool mould.Suitable metal is such as iron material.The powder used should be irregular as far as possible (spratzig), can realize sufficiently high blank intensity thus.
The stampings 10 obtained so have had the basic configuration of the sliding sleeve ring 12 made.The selector fork fishplate bar form that annular radial is given prominence to, in radial outer circumferential sides, also can belong to this shape for teeth portion in selector fork 14 and meshing geometry structure 16.
Then under unsintered underdone state, additional geometry is produced by machining stampings 10.
In this example, the details of interior teeth portion 14, reserve part 20 on the inclined-plane of such as each tooth 18 of interior teeth portion 14, tooth 18 and multiple slot scraping 22 distributed on circumference U by suitable, cutting element 24 shown in figure 2, such as, rotate or milling tool and being introduced into.
Interior teeth portion 14 self also can utilize suitable instrument 24 manufactured by Broaching Technology on stampings 10.
In order to manufacture reserve part 20 and slot scraping 22, such as, use known internal cycloid milling method, wherein, the instrument 24 being designed to milling head moves along internal cycloid.Be in this case stampings 10 workpiece preferably with coupling another frequency rotate in the same rotational direction.
The geometry manufactured maybe can not can only be difficult to by which, can be out processed by the motion having object to mate of instrument 24.
The selector fork fishplate bar (Schaltgabelsteg) forming meshing geometry structure 16 directly can be shaped according to its shape in pressing.But, also can manufacture selector fork fishplate bar by machining stampings 10 afterwards.
Stampings 10 relatively soft and rapid wear under underdone state.Therefore, the multi-piece type chuck 26 with the part 28 of multiple relative motions of such as jaw is set, thus is cutting maintenance and support stampings 10 between processing period.
The part 28 that chuck 26 can be movable relatively by two is formed, its outer circumference surface along stampings 10 clamping stampings (see Fig. 2).But, this preferred embodiment in, chuck 26 have more than two, in the part 28 circumferentially distributed of stampings, these parts can on radial direction r open and close, thus hold stampings 10, such as, there are three or four parts 28.
The interior geometry 30 of chuck 26 mates the outer geometry of stampings 10, is contained in chuck 26 with making stampings 10 positive, and planar be supported on chuck 26.Support in this way, can well close to interior teeth portion 14 to carry out cutting processing.
Applied by chuck 26, be applied on stampings 10 thus the extruding force F held it in chuck 26, monitored by control unit 32 in this example, extruding force F such as displacement or power are restricted to the upper limit by this control unit controllably, this reliably fixes stampings 10 in limited time, and does not damage stampings.
At this, chuck 26 is designed such that it can rotate together with held stampings 10, thus such as simplify internal cycloid processing.
After processing stampings 10, sintering stampings, wherein, the particle of metal dust is fixedly connected.The final strength of the sintering forming element after can simultaneously realizing being fixed to when sintering.Also can imagine, setting is used for fixing independent job step.
By to be shaped in pressing mold and then can the final outline of completely predetermined sliding sleeve ring 12 substantially to the processing of cutting of stampings 10, make sintering and fixing after no longer need other machinery to reprocess.Alternatively, machinery reprocessing can be restricted on the determination region of sliding sleeve ring.
Fig. 3 illustrates stampings 10', wherein, replaces selector fork fishplate bar to arrange selector fork groove, as the meshing geometry structure 16' for selector fork.Correspondingly, two fishplate bars circumferentially extended 34 are designed in the region of the axial edge of stampings 10', and it limits selector fork groove.
In addition, stampings 10' corresponds to the stampings 10 shown in Fig. 1.
Selector fork groove due to its geometry can not by means of the pressing mold manufacture separated in axial direction A.Therefore in this case, meshing geometry structure 16 ' also completes by cutting processing stampings 10' under non-sintering state.
Chuck 26 (not illustrating in addition at this) is designed in this case, and it is applied in the axial edge of formation fishplate bar 34 of stampings 10', makes to carry out circumference processing by instrument.
In (unshowned) flexible program, chuck 26 is designed to, and makes it can hold multiple axis stampings 10' placed side by side, and wherein, the circumferential edges being disposed in middle stampings 10' is exposed.In the clamping process for the manufacture of meshing geometry structure 16', in turn process by which the stampings 10' that full line is sandwiched into by instrument.
Again can realize the processing of internal teeth portion 14 and slot scraping 22 and reserve part 20 individually, wherein, arrange chuck 26, its clamping stampings 10' makes can close to interior teeth portion 14.
At this, such as, in multiple continuous print job step, realize manufacturing teeth portion 14 and manufacture slot scraping 22 and reserve part 20 in meshing geometry structure 16' and processing, wherein, if desired then use different chucks 26.
In examples as shown in figure 3, also sinter after the process is completed and fixing stampings 10', wherein, sintering and fixing (Verfestigen: sizing) can be implemented in a unique job step.Other machinings are optional, and it can realize at the determining section place of sliding sleeve ring 12, but or can not occur completely.
Claims (12)
1., for being manufactured a method for the sliding sleeve ring (12) of sintering forming element form by powdered-metal, there is following step:
-in pressing process, manufacture stampings (10 under pressure; 10 ');
-suppressing machining stampings (10 under stationary state; 10 ') becomes blank (10; 10 '); And then
-sintering stampings (10; 10 ') are to manufacture sintering forming element.
2. method according to claim 1, is characterized in that, manufactures and/or teeth portion (14), reserve part (20) and/or slot scraping (22) in processing when machining.
3. according to method in any one of the preceding claims wherein, it is characterized in that, produce the meshing geometry structure (16 for selector fork when machining on the outer periphery; 16 ').
4. according to method in any one of the preceding claims wherein, it is characterized in that, sliding sleeve ring (12) is placed in its final strength when sintering simultaneously.
5. according to method in any one of the preceding claims wherein, it is characterized in that, at machining stampings (10; Time 10 '), at least the outline of sintering forming element is finally determined on substep ground.
6. according to method in any one of the preceding claims wherein, it is characterized in that, stampings (10; 10 ') were accommodated in chuck (26) before machining, stampings (10; Be supported on this chuck to 10 ') planar, and especially, supervisory function bit is to stampings (10; Confining force (F) on 10 '), and this confining force is limited to predetermined maximum force.
7. method according to claim 6, is characterized in that, chuck (26) is made up of multiple part (28), these part relative motions, thus maintains stampings (10; 10 ').
8. method according to claim 7, is characterized in that, each several part (28) of chuck (26) diametrically moves, and stampings (10; 10 ') are circumferentially supported at it.
9. the method according to any one of claim 6 to 8, is characterized in that, stampings are supported in chuck (26) on its radially-outer surface in two axial side of sliding sleeve ring (12).
10. the method according to any one of claim 5 to 8, is characterized in that, chuck (26) and stampings (10; 10 ') are moved during machining, are rotated especially.
11., according to method in any one of the preceding claims wherein, is characterized in that, multiple stampings (10; 10 ') is axially loaded in chuck (26) abreast, and is cut processing in same clamping process.
12., according to method in any one of the preceding claims wherein, is characterized in that, stampings (10; 10 ') are compressed axially when machining.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014110903.1A DE102014110903A1 (en) | 2014-07-31 | 2014-07-31 | Method for producing a sliding sleeve ring |
| DE102014110903.1 | 2014-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105312584A true CN105312584A (en) | 2016-02-10 |
Family
ID=55079362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510461294.2A Pending CN105312584A (en) | 2014-07-31 | 2015-07-30 | Method for making slide sleeve ring |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105312584A (en) |
| DE (1) | DE102014110903A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107303635A (en) * | 2016-04-19 | 2017-10-31 | 贺尔碧格传动技术控股有限公司 | The manufacture method and sliding sleeve of the sliding sleeve of synchronous hand gear device assembly |
| CN107355486A (en) * | 2017-08-09 | 2017-11-17 | 江苏威鹰机械有限公司 | New-energy automobile slidably engages set and its manufacturing process |
| CN107921535A (en) * | 2016-04-07 | 2018-04-17 | 住友电气工业株式会社 | Make the method and sintered body of sintered body |
| CN108032035A (en) * | 2017-11-27 | 2018-05-15 | 佛山市荣鑫宝数控设备有限公司 | A kind of processing method of new band ring |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036523A (en) * | 1988-02-27 | 1989-10-25 | 克烈舍格金属烧结工厂股份有限公司 | The method of forged part makes powder |
| EP0550877A1 (en) * | 1992-01-10 | 1993-07-14 | PRÄWEMA WERKZEUGMASCHINENFABRIK GmbH | Method for generating undercuts in straight internal or external toothings of toothed workpieces |
| CN1863630A (en) * | 2002-06-03 | 2006-11-15 | 于利奇研究中心有限公司 | Making high porosity sintered moldings, mixes metal powder with place holder, presses and processes blank, then removes place holder before sintering |
| US7246439B2 (en) * | 2002-10-30 | 2007-07-24 | Pmg Fuessen Gmbh | Process for mechanically forming undercuts on sintered shaped parts based on iron |
| CN101444845A (en) * | 2008-09-24 | 2009-06-03 | 重庆华孚工业股份有限公司 | Method for producing powder metallurgy toothed sleeve |
| CN103111620A (en) * | 2011-11-17 | 2013-05-22 | 泰州市科诚汽车零配件有限公司 | Novel energy automobile speed changer shift mechanism special powder metallurgy support seat manufacturing method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19636524A1 (en) * | 1996-09-09 | 1998-03-12 | Krebsoege Gmbh Sintermetall | Process for producing a sintered component |
| DE19850326A1 (en) * | 1998-11-02 | 2000-05-04 | Gkn Sinter Metals Holding Gmbh | Process for producing a sintered component with reshaping of the green body |
| DE10111325C1 (en) * | 2001-03-08 | 2002-10-02 | Gkn Sinter Metals Gmbh | Method for producing a sintered metallic component with at least one bore |
-
2014
- 2014-07-31 DE DE102014110903.1A patent/DE102014110903A1/en not_active Withdrawn
-
2015
- 2015-07-30 CN CN201510461294.2A patent/CN105312584A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1036523A (en) * | 1988-02-27 | 1989-10-25 | 克烈舍格金属烧结工厂股份有限公司 | The method of forged part makes powder |
| EP0550877A1 (en) * | 1992-01-10 | 1993-07-14 | PRÄWEMA WERKZEUGMASCHINENFABRIK GmbH | Method for generating undercuts in straight internal or external toothings of toothed workpieces |
| CN1863630A (en) * | 2002-06-03 | 2006-11-15 | 于利奇研究中心有限公司 | Making high porosity sintered moldings, mixes metal powder with place holder, presses and processes blank, then removes place holder before sintering |
| US7246439B2 (en) * | 2002-10-30 | 2007-07-24 | Pmg Fuessen Gmbh | Process for mechanically forming undercuts on sintered shaped parts based on iron |
| CN101444845A (en) * | 2008-09-24 | 2009-06-03 | 重庆华孚工业股份有限公司 | Method for producing powder metallurgy toothed sleeve |
| CN103111620A (en) * | 2011-11-17 | 2013-05-22 | 泰州市科诚汽车零配件有限公司 | Novel energy automobile speed changer shift mechanism special powder metallurgy support seat manufacturing method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107921535A (en) * | 2016-04-07 | 2018-04-17 | 住友电气工业株式会社 | Make the method and sintered body of sintered body |
| CN107921535B (en) * | 2016-04-07 | 2020-06-30 | 住友电气工业株式会社 | Method for producing sintered body and sintered body |
| CN107303635A (en) * | 2016-04-19 | 2017-10-31 | 贺尔碧格传动技术控股有限公司 | The manufacture method and sliding sleeve of the sliding sleeve of synchronous hand gear device assembly |
| CN107355486A (en) * | 2017-08-09 | 2017-11-17 | 江苏威鹰机械有限公司 | New-energy automobile slidably engages set and its manufacturing process |
| CN108032035A (en) * | 2017-11-27 | 2018-05-15 | 佛山市荣鑫宝数控设备有限公司 | A kind of processing method of new band ring |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102014110903A1 (en) | 2016-02-04 |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160210 |
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| RJ01 | Rejection of invention patent application after publication |