CN1943948A - Core shaft clamp for machining disc type gear - Google Patents
Core shaft clamp for machining disc type gear Download PDFInfo
- Publication number
- CN1943948A CN1943948A CN 200610201093 CN200610201093A CN1943948A CN 1943948 A CN1943948 A CN 1943948A CN 200610201093 CN200610201093 CN 200610201093 CN 200610201093 A CN200610201093 A CN 200610201093A CN 1943948 A CN1943948 A CN 1943948A
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- Prior art keywords
- circular cone
- needle
- central spindle
- rigid central
- needle roller
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- 238000003754 machining Methods 0.000 title abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
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Abstract
The invention discloses a mandrel clamp for machining a disc gear, which comprises a rigid mandrel (1), a clamping nut (4), a needle roller retainer (5), a pressure spring (6) and conical needle rollers (7). A conical roller pin (7) is arranged between the rigid mandrel (1) and the workpiece (2), the matching surfaces of the rigid mandrel (1) and the conical roller pin (7) are in taper contact, the taper directions are opposite, the taper of the conical roller pin (7) is 1/2 of the taper of the rigid mandrel (1), the conical roller pin (7) is arranged in a groove of a roller pin retainer (5), the roller pin retainer (5) is sleeved on the rigid mandrel (1), the outer end surface of the roller pin retainer is attached to a clamping nut (4), and the clamping nut (4) is connected with the rigid mandrel (1); the compression spring (6) is sleeved on the rigid mandrel (1), and two ends of the compression spring are respectively supported on the inner end surface of the needle roller retainer (5) and the step of the rigid mandrel (1). The invention overcomes the defects of poor adaptability of the clamp and difficult guarantee of product quality when the size fluctuation of the inner hole of the gear is large in the prior art, and reduces the production cost.
Description
Technical field:
The present invention relates to a kind of dabber clamp for processing disc type gear.
Background technology:
Gear is mechanically operated important foundation part.From in shape, generally can be divided into two big classifications of a type gear and disc type gear.In order to reach the required precision of gear, generally adopt various gear working methods such as gear hobbing, shaving or roll flute in the production.With regard to disc type gear,, all need to use the technology dabber clamp no matter adopt any gear working method.
At present, the dabber clamp that generally uses in the production, as shown in Figure 1, it is made up of rigid central spindle (1), plain washer (3), binding nut three parts such as (4); As the location benchmark, by screw down clips jack panel (4) clamping work pieces, what its clamping mode adopted is the mode that end face clamps to workpiece during clamping (2) with the cylindrical of rigid central spindle (1), and the effect of plain washer (3) is not crush workpiece when clamping.Its advantage is: clamp structure is simple, and number of spare parts is few, and manufacturing cost is lower; Its shortcoming is: the size adaptability of anchor clamps is very poor, and it requires the precision of processed bore size very high, and uniformity will be got well; Internally the processing of the bulk of components that the hole dimension fluctuation is bigger can't guarantee product quality; To the gear of hole dimension in different, need to make different dabber clamps; Even the precision of processed bore size is very high, uniformity is also fine, if the required precision of gear itself is very high, such as 4 grades, 5 grades gears, adopt such dabber clamp can not guarantee that the product that processes all is qualified, reason is very simple, because workpiece during clamping (2) is as the location benchmark with the cylindrical of rigid central spindle (1), cooperation between them is always gapped, and this fit clearance can directly have influence on the machining accuracy of gear, and is particularly particularly remarkable to the influence of tooth runout.
Summary of the invention:
The technical problem to be solved in the present invention is: a kind of dabber clamp for processing disc type gear is provided, and very poor with the size adaptability that overcomes the anchor clamps that prior art exists, when the bore size fluctuation is big, be difficult to guarantee the deficiency of product quality.
The present invention constitutes like this: it comprises rigid central spindle (1), binding nut (4), cages for needle (5), stage clip (6), circular cone needle roller (7).Between rigid central spindle (1), workpiece (2), circular cone needle roller (7) is arranged, tapering is adopted in the cooperation of rigid central spindle (1) and circular cone needle roller (7), both taper directions are opposite, the tapering of circular cone needle roller (7) is 1/2 of rigid central spindle (a 1) tapering, circular cone needle roller (7) is in the groove of cages for needle (5), cages for needle (5) is enclosed within the rigid central spindle (1), and its outer face and binding nut (4) are fitted, and binding nut (4) is connected with rigid central spindle (1).
Stage clip (6) is enclosed within the rigid central spindle (1), and its two ends are bearing in respectively on the step of the inner face of cages for needle (5) and rigid central spindle (1).
Because the mating surface of rigid central spindle (1) and circular cone needle roller (7) adopts tapering contact, taper direction is opposite, and the tapering of circular cone needle roller equals 1/2 of rigid central spindle's tapering, and therefore the bus of circular cone needle roller is parallel with the center line of rigid core axis body after the cooperation.The size of tapering determines according to the size of processing bore size fluctuation or the size of different bore dimension difference.
Circular cone needle roller (7) is made of three or many shapes, the identical circular cone needle rollers of size.The quantity of circular cone needle roller is according to the size decision of hole dimension in the processed gear part, in general, hole dimension is big more in the processed gear part, and the quantity of circular cone needle roller is many more, to reach the contact area that increases between dabber clamp and processed bore, improve the purpose of contact strength.
Circular cone needle roller (7) is enclosed within the rigid central spindle (1) by cages for needle (5), has on the circumference of cages for needle and the identical straight trough of circular cone needle roller quantity, and axial direction and the straight trough of circular cone needle roller (7) in groove adopts less matched in clearance.During clamping workpiece, unclamp binding nut (4) earlier, processed gear workpiece (2) is put, by screw down clips jack panel (4), promoting cages for needle (5) moves right, cages for needle (5) promotion circular cone needle roller (7) moves right simultaneously, makes circular cone needle roller (7) radially stretch out the swelling bore greatly owing to circular cone needle roller (7) cooperates the change of tapering diameter with rigid central spindle (1).When unclamping, turn on binding nut (4), promotion cages for needle (5) is moved to the left under the effect of stage clip (6), cages for needle (5) drive circular cone needle roller (7) is moved to the left and unclamps simultaneously, can take off processed gear workpiece (2).
From the above mentioned as can be known, utilization of the present invention be three or many identical circular cone needle rollers of shape and size (7), circular cone needle roller (7) produces distending radially and clamping work pieces when the taper seat axis of rigid central spindle (1) moves when screw down clips jack panel (4), it with produce in generally use with the cylindrical of rigid central spindle as the location benchmark, only depend on the end face clamping mode of screw down clips jack panel that in essence difference is arranged.
Compared with prior art, have the following advantages among the present invention:
First: mandrel is very close to each other with cooperating of processed bore, thereby has eliminated the mismachining tolerance that produces because of fit clearance;
Second: reduced required precision, guaranteed that the bigger bulk of components of endoporus size fluctuation adds the quality of product in man-hour to the interior hole dimension of processed gear;
The the 3rd: when the diameter of bore of processed gear is more or less the same, generally in 2mm, can be used for processing the gear of different cultivars, thereby realize having reduced production cost in the versatility of certain bore size range inner spindle anchor clamps.
Description of drawings:
Fig. 1 is the dabber clamp structural representation that generally uses in producing at present;
Fig. 2 is a structural representation of the present invention;
Fig. 3 is cages for needle of the present invention (a 5) structural representation;
Fig. 4 is cages for needle among Fig. 3 (a 5) fluting place cutaway view.
The specific embodiment:
Embodiments of the invention: the present invention is mainly by rigid central spindle 1, circular cone needle roller 7, stage clip 6, cages for needle 5, and binding nut 4 parts such as grade are formed.Rigid central spindle 1 and circular cone needle roller 7 have all been made tapering, and the tapering of circular cone needle roller equals 1/2 of rigid central spindle's tapering, and the quantity of circular cone needle roller is generally 3 or more according to the size decision of hole dimension in the processed gear part.Cages for needle 4 has straight trough on circumference, straight trough quantity is identical with the quantity of circular cone needle roller, and axial direction and the straight trough of circular cone needle roller in groove adopts less matched in clearance.Assemble by Fig. 2, promptly stage clip 6, cages for needle 5 be enclosed within the rigid central spindle 1 respectively, circular cone needle roller 7 is placed in the groove of cages for needle 5, and binding nut 4 is screwed in the rigid central spindle 1.During clamping, unclamp binding nut 4 earlier, processed gear 2 is put, the screw down clips jack panel 4 again, promoting cages for needle 5 moves right, cages for needle 5 promotion circular cone needle rollers 7 move right simultaneously, and the circular cone needle roller cooperates the change of tapering diameter to make circular cone needle roller 7 radially stretch out the swelling bore greatly with rigid central spindle.When taking off workpiece, unclamp binding nut 4, stage clip 6 promotes cages for needle 5 and is moved to the left, and cages for needle 5 drive circular cone needle rollers 7 are moved to the left simultaneously, and circular cone needle roller 7 breaks away from and can take off with workpiece.
Claims (2)
1. dabber clamp for processing disc type gear, it comprises rigid central spindle (1), binding nut (4), cages for needle (5), stage clip (6), circular cone needle roller (7); It is characterized in that: between rigid central spindle (1), workpiece (2), circular cone needle roller (7) is arranged, tapering is adopted in the cooperation of rigid central spindle (1) and circular cone needle roller (7), both taper directions are opposite, the tapering of circular cone needle roller (7) is 1/2 of rigid central spindle (a 1) tapering, circular cone needle roller (7) is in the groove of cages for needle (5), cages for needle (5) is enclosed within the rigid central spindle (1), and its outer face and binding nut (4) are fitted, and binding nut (4) is connected with rigid central spindle (1).
2. dabber clamp for processing disc type gear according to claim 1 is characterized in that: stage clip (6) is enclosed within the rigid central spindle (1), and its two ends are bearing in respectively on the step of the inner face of cages for needle (5) and rigid central spindle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610201093 CN1943948A (en) | 2006-11-14 | 2006-11-14 | Core shaft clamp for machining disc type gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610201093 CN1943948A (en) | 2006-11-14 | 2006-11-14 | Core shaft clamp for machining disc type gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1943948A true CN1943948A (en) | 2007-04-11 |
Family
ID=38043718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610201093 Pending CN1943948A (en) | 2006-11-14 | 2006-11-14 | Core shaft clamp for machining disc type gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1943948A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101664831B (en) * | 2009-09-17 | 2011-05-11 | 曾光荣·巴拿巴 | Gear hole self-centering rolling ball clamp |
| CN102990263A (en) * | 2012-11-09 | 2013-03-27 | 哈尔滨汽轮机厂有限责任公司 | Tool of low-pressure hub and heat treatment method for forming low-pressure hub |
| CN103234430A (en) * | 2013-04-15 | 2013-08-07 | 启东万惠机械制造有限公司 | Shape and position tolerance detecting device for ring gears |
| CN103990859A (en) * | 2014-05-29 | 2014-08-20 | 江苏金长城减速机有限公司 | Mill pinlon tool |
| CN105149701A (en) * | 2015-09-28 | 2015-12-16 | 大族激光科技产业集团股份有限公司 | Clamp for gear machining |
-
2006
- 2006-11-14 CN CN 200610201093 patent/CN1943948A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101664831B (en) * | 2009-09-17 | 2011-05-11 | 曾光荣·巴拿巴 | Gear hole self-centering rolling ball clamp |
| CN102990263A (en) * | 2012-11-09 | 2013-03-27 | 哈尔滨汽轮机厂有限责任公司 | Tool of low-pressure hub and heat treatment method for forming low-pressure hub |
| CN103234430A (en) * | 2013-04-15 | 2013-08-07 | 启东万惠机械制造有限公司 | Shape and position tolerance detecting device for ring gears |
| CN103990859A (en) * | 2014-05-29 | 2014-08-20 | 江苏金长城减速机有限公司 | Mill pinlon tool |
| CN105149701A (en) * | 2015-09-28 | 2015-12-16 | 大族激光科技产业集团股份有限公司 | Clamp for gear machining |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |