CN205254273U - Little interference high accuracy gear hobbing frock - Google Patents
Little interference high accuracy gear hobbing frock Download PDFInfo
- Publication number
- CN205254273U CN205254273U CN201521041881.8U CN201521041881U CN205254273U CN 205254273 U CN205254273 U CN 205254273U CN 201521041881 U CN201521041881 U CN 201521041881U CN 205254273 U CN205254273 U CN 205254273U
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- CN
- China
- Prior art keywords
- axis body
- spindle nose
- diameter
- axle
- tail
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a not only the structure is simpler, the little interference high accuracy gear hobbing frock high to work piece centering precision moreover, including the mandrel, the mandrel is by spindle nose, axis body and the axle tail constitutes and spindle nose, axis body and axle tail are overall structure, the axis body be located spindle nose and axle between the tail and the diameter of axis body be greater than the diameter of spindle nose, an axis body and a tail are equipped with the shaft shoulder within a definite time and the axis body diameter is greater than work piece bore diameter, the spindle nose is equipped with clamp plate and hydraulic nut and hydraulic nut and is located the clamp plate outside, the work piece through clamp plate and hydraulic nut bulldoze with axis body interference fit. The advantage: little interference high accuracy gear hobbing frock has reduced elastic jacket's use, and its structure is simpler to little interference high accuracy gear hobbing frock's manufacturing cost has been reduced.
Description
Technical field
The utility model relates to one, and not only structure is simpler, and the micro-interference high precision hobbing frock high to workpiece centering precision, belongs to gear hobbing tooling and manufactures field.
Background technology
CN204248131U, title " with the gear hobbing tooling of ringfeder ", comprise mandrel, mandrel is multidiameter, described mandrel comprises positioning boss portion and is located at the positioning and guiding portion on positioning boss portion right side, the diameter of described positioning boss portion is greater than the diameter of positioning and guiding portion, geared sleeve is located in positioning and guiding portion, and a side end face of gear is by being located on the end face of positioning boss portion, described positioning and guiding portion outside is arranged with elastic expansion-sleeve, described elastic expansion-sleeve is coaxially arranged with positioning retainer ring and end face nut to the right successively, between described end face nut and mandrel, adopt and be threaded, described elastic expansion-sleeve, the diameter of positioning retainer ring and end face nut equates, between described positioning boss portion and positioning and guiding portion, be provided with stop tab, described stop tab is cam-like, described stop tab comprises lug boss, described lug boss is located at the top of positioning and guiding portion, described lug boss is provided with the groove of inclination, in described groove, be placed with pigment. the diameter of described positioning boss portion is greater than the diameter 15～20mm of positioning and guiding portion. between described elastic expansion-sleeve and mandrel, adopt holding pin to be connected. weak point: this kind utilizes elastic expansion-sleeve stretching workpiece with the gear hobbing tooling of ringfeder, its structure relative complex, thus improve the production cost of the gear hobbing tooling with ringfeder.
Utility model content
Purpose of design: for avoiding the deficiency in background technology, not only structure is simpler for design one, and the micro-interference high precision hobbing frock high to workpiece centering precision.
Design: for realizing above-mentioned purpose of design. 1, between axis body and axle tail, be provided with the shaft shoulder and axis body diameter is greater than inner hole of workpiece diameter, described spindle nose is provided with pressing plate and hydraulic nut and hydraulic nut and is positioned at pressing plate outside, described workpiece, by the pushing of pressing plate and hydraulic nut and the design of axis body interference fit, is one of technical characterictic of the present utility model. The object of design is like this: between axis body and axle tail, be provided with the shaft shoulder and axis body diameter is greater than inner hole of workpiece diameter, described spindle nose is provided with pressing plate and hydraulic nut and hydraulic nut and is positioned at pressing plate outside, described workpiece is by pushing and the axis body interference fit of pressing plate and hydraulic nut, because micro-interference high precision hobbing frock has reduced the use of elastic jacket under having ensured the prerequisite of workpiece centering precision, simplify so micro-interference high precision hobbing tool structure, thereby reduced the production cost of micro-interference high precision hobbing frock. 2, to be positioned at the termination of spindle nose one side be the design that chamfering termination and chamfering termination smallest circle diameter are less than inner hole of workpiece diameter to axis body, is two of technical characterictic of the present utility model. The object of design is like this: the termination that axis body is positioned at spindle nose one side is that chamfering termination and chamfering termination smallest circle diameter are less than inner hole of workpiece diameter, chamfering termination is used for the location before axis body and workpiece grafting, is convenient to axis body and workpiece interference fit under external force. 3, axis body is positioned at axle tail one side and is provided with the design of annular groove, is three of technical characterictic of the present utility model. The object of design is like this: owing to being interference fit between the outer wall of the endoporus axis body of workpiece, both in grafting process along with the increase of contact area, between the two frictional resistance also larger, both external force of grafting of corresponding promotion are also larger, axis body is positioned at axle tail one side and is provided with annular groove, annular groove has reduced the contact area of grafting process central axis outer wall and inner hole of workpiece, thereby has reduced the external force that turns hydraulic nut.
Technical scheme: a kind of micro-interference high precision hobbing frock, comprise axle, described axle is by spindle nose, axis body and axle tail forms and spindle nose, axis body and axle tail are overall structure, described axis body is positioned between spindle nose and axle tail and the diameter of axis body is greater than the diameter of spindle nose, between described axis body and axle tail, be provided with the shaft shoulder and axis body diameter is greater than inner hole of workpiece diameter, described spindle nose is provided with pressing plate and hydraulic nut and hydraulic nut and is positioned at pressing plate outside, and described workpiece is by pushing and the axis body interference fit of pressing plate and hydraulic nut.
The utility model is compared with background technology, and micro-interference high precision hobbing frock has reduced the use of elastic jacket, and its structure is simpler, thereby has reduced the production cost of micro-interference high precision hobbing frock.
Brief description of the drawings
Fig. 1 is the sectional structure schematic diagram of micro-interference high precision hobbing frock.
Detailed description of the invention
Embodiment 1: with reference to accompanying drawing 1. a kind of micro-interference high precision hobbing frock, comprise axle 1, described axle 1 is by spindle nose 11, axis body 12 and axle tail 13 form and spindle nose 11, axis body 12 and axle tail 13 are overall structure, described axis body 12 is positioned between spindle nose 11 and axle tail 13 and the diameter of axis body 12 is greater than the diameter of spindle nose 11, between described axis body 12 and axle tail 13, be provided with the shaft shoulder 14 and axis body 12 diameters are greater than workpiece 2 diameter of bores, the described shaft shoulder 14 plays positioning action to the installation of workpiece 2, described spindle nose 11 is provided with pressing plate 3 and hydraulic nut 4 and hydraulic nut 4 and is positioned at pressing plate 3 outsides, described spindle nose 11 outer walls are provided with screw thread and hydraulic nut 4 and spin to mate with the screw thread on spindle nose 11 outer walls by hydraulic nut 4 inner hole threads and be arranged on spindle nose 11, described workpiece 2 is by pushing and axis body 12 interference fit of pressing plate 3 and hydraulic nut 4, both axis body 12 diameters were greater than workpiece 2 diameter of bores slightly, under the effect of external force, workpiece 2 is pegged graft to coordinate by the endoporus of workpiece 2 and the outer wall of axis body 12 and is arranged on axis body 12. the termination that described axis body 12 is positioned at spindle nose 11 1 sides is that chamfering termination 111 and chamfering termination 111 smallest circle diameters are less than workpiece 2 diameter of bores, and described chamfering termination 111 length account for 1/3rd to 1/2nd of axis body 12 length. described axis body 12 is positioned at axle tail 13 1 sides and is provided with annular groove 131, the end face near spindle nose 11 1 sides in the cell wall of close axle tail 13 1 sides and the shaft shoulder 14 in described annular groove 121.
It is to be understood that: although above-described embodiment is to the mentality of designing of the present utility model detailed text description of contrasting; but these text descriptions; just the simple text of the utility model mentality of designing is described; instead of restriction to the utility model mentality of designing; any combination, increase or amendment that does not exceed the utility model mentality of designing, all falls in protection domain of the present utility model.
Claims (3)
1. a micro-interference high precision hobbing frock, comprise axle (1), described axle (1) is by spindle nose (11), axis body (12) and axle tail (13) form and spindle nose (11), axis body (12) and axle tail (13) are overall structure, described axis body (12) is positioned between spindle nose (11) and axle tail (13) and the diameter of axis body (12) is greater than the diameter of spindle nose (11), it is characterized in that: between described axis body (12) and axle tail (13), be provided with the shaft shoulder (14) and axis body (12) diameter is greater than workpiece (2) diameter of bore, described spindle nose (11) is provided with pressing plate (3) and hydraulic nut (4) and hydraulic nut (4) and is positioned at pressing plate (3) outside, described workpiece (2) is by pushing and axis body (12) interference fit of pressing plate (3) and hydraulic nut (4).
2. micro-interference high precision hobbing frock according to claim 1, is characterized in that: the termination that described axis body (12) is positioned at spindle nose (11) one sides is that chamfering termination (111) and chamfering termination (111) smallest circle diameter are less than workpiece (2) diameter of bore.
3. micro-interference high precision hobbing frock according to claim 1, is characterized in that: described axis body (12) is positioned at axle tail (13) one sides and is provided with annular groove (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521041881.8U CN205254273U (en) | 2015-12-15 | 2015-12-15 | Little interference high accuracy gear hobbing frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521041881.8U CN205254273U (en) | 2015-12-15 | 2015-12-15 | Little interference high accuracy gear hobbing frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205254273U true CN205254273U (en) | 2016-05-25 |
Family
ID=55995824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521041881.8U Expired - Fee Related CN205254273U (en) | 2015-12-15 | 2015-12-15 | Little interference high accuracy gear hobbing frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205254273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513870A (en) * | 2017-01-19 | 2017-03-22 | 衡山齿轮有限责任公司 | Gear grinding core shaft clamp |
-
2015
- 2015-12-15 CN CN201521041881.8U patent/CN205254273U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513870A (en) * | 2017-01-19 | 2017-03-22 | 衡山齿轮有限责任公司 | Gear grinding core shaft clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20191215 |