CN205057205U - Modification internal expanding formula frock - Google Patents
Modification internal expanding formula frock Download PDFInfo
- Publication number
- CN205057205U CN205057205U CN201520808273.9U CN201520808273U CN205057205U CN 205057205 U CN205057205 U CN 205057205U CN 201520808273 U CN201520808273 U CN 201520808273U CN 205057205 U CN205057205 U CN 205057205U
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- China
- Prior art keywords
- expander
- addendum cone
- seat
- modification internal
- expansion type
- 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.)
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Abstract
The utility model relates to a modification internal expanding formula frock mainly comprises the placenta that rises, tightening nut, rise child and shield, the child of rising sets up on the placenta that rises, the child of rising is provided with the tightening nut with the junction of placenta of rising, the shield is located the top of the child of rising, rise by the top of placenta for the addendum cone, the top of shield still sets up toply, the shield is in the same place with addendum cone fixed connection, the diameter of shield is greater than the diameter of addendum cone, this kind of modification internal expanding formula frock has that processingquality is excellent, the machining precision is high, use cost is low, and easy maintenance's advantage.
Description
Technical field
The utility model relates to a kind of modification internal expansion type frock, particularly relates to the frock on gear-hobbing machine.
Background technology
Frock is mechanism indispensable in all machining, and good frock can allow processing obtain the effect of getting twice the result with half the effort.Tool mechanism on gear-hobbing machine is even more important, because gear is a part needing high accuracy process, on existing gear-hobbing machine frock adopt be position from the outside of gear, clamping operation, and location is divided into two positions with the benchmark clamped, so just cause both benchmark disunities, be very easy to occur fiducial error, directly have influence on machining accuracy, also cause crudy to be guaranteed; Existing frock expander is completely fixed in addition, cannot carry out independent replacement, can only carry out the replacement of whole frock, indirectly improve use cost, and the maintenance in later stage also cannot be carried out once damage.
Utility model content
The utility model mainly solves the technical problem existing for prior art, thus provides that a kind of crudy is excellent, machining accuracy is high, use cost is low, and modification internal expansion type frock easy to maintenance.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of modification internal expansion type frock of the present utility model, forms primarily of expander seat, tightening nut, expander and dust cap;
Described expander is arranged on expander seat; The junction of described expander and expander seat is provided with tightening nut; Described dust cap is positioned at the top of expander; The top of described expander seat is addendum cone; The top of described dust cap also arranges top; Described dust cap and addendum cone are fixed together; The diameter of described dust cap is greater than the diameter of addendum cone.
As preferably, the surface of described addendum cone is the central term conical surface of 60 °.
As preferably, Workpiece fixing is set in the top of expander by described top and addendum cone.
As preferably, be thread connecting mode between described tightening nut and expander seat, expander.
As preferably, to be describedly toply positioned on same center line with addendum cone.
As preferably, the height of described expander seat is greater than the height of expander
The beneficial effects of the utility model are: because modification internal expansion type frock is provided with expander and expander seat, the clamping mode of workpiece in the endoporus adopting the end of expander to extend to workpiece carry out the clamping that stretching reaches workpiece, in the clamping process of entirety, addendum cone and top design allow the location between frock and workpiece also be undertaken by the endoporus of stretching by workpiece, thus make machining benchmark and positioning datum reach unification, avoid and be positioned to process the basic situation that error occurs, significantly improve crudy and machining accuracy; Adopt tightening nut to fix the mode of expander in addition, allow expander after appearance consume, can independent replacement be carried out, avoid the situation of replacing whole frock because of the consume of expander, reduce outside use cost, also allow the maintenance of frock much convenient.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure chart of a kind of modification internal expansion type of the utility model frock.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection domain of the present utility model
As shown in Figure 1, a kind of modification internal expansion type frock, forms primarily of expander seat 1, tightening nut 2, expander 3 and dust cap 4;
Described expander 3 is arranged on expander seat 1; Described expander 3 is provided with tightening nut 2 with the junction of expander seat 1; Described dust cap 4 is positioned at the top of expander 3; The top of described expander seat 1 is addendum cone 7; The top of described dust cap 4 also arranges top 6; Described dust cap 4 is fixed together with addendum cone 7; The diameter of described dust cap 4 is greater than the diameter of addendum cone 7.
The surface of described addendum cone 7 is the central term conical surface of 60 °.Described top 6 and addendum cone 7 workpiece 5 positioning sleeve is located at the top of expander 3.Be thread connecting mode between described tightening nut 2 and expander seat 1, expander 3.Described top 6 are positioned on same center line with addendum cone 7.The height of described expander seat 1 is greater than the height of expander 3.
When this kind of modification internal expansion type frock uses, by the connection screwing degree of tightness expander 3 and expander seat 1 of tightening nut 2; Tightening nut 2 of outwarding winding just can make expander 3 slide up and down, and screws tightening nut 2 and expander 3 just can be made to be fixedly connected with expander seat 1; When workpiece 5 is installed by the addendum cone 7 of expander seat 1 upward, carry out centering location with top 6 and 60 ° of central term conical surfaces of addendum cone 7, the top of relief expander 3 to extend in workpiece 5 stretching to complete the clamping before processing, positioning operation.
The beneficial effects of the utility model are: because modification internal expansion type frock is provided with expander and expander seat, the clamping mode of workpiece in the endoporus adopting the end of expander to extend to workpiece carry out the clamping that stretching reaches workpiece, in the clamping process of entirety, addendum cone and top design allow the location between frock and workpiece also be undertaken by the endoporus of stretching by workpiece, thus make machining benchmark and positioning datum reach unification, avoid and be positioned to process the basic situation that error occurs, significantly improve crudy and machining accuracy; Adopt tightening nut to fix the mode of expander in addition, allow expander after appearance consume, can independent replacement be carried out, avoid the situation of replacing whole frock because of the consume of expander, reduce outside use cost, also allow the maintenance of frock much convenient.
The above, be only detailed description of the invention of the present utility model, but protection domain of the present utility model is not limited thereto, and any change of expecting without creative work or replacement, all should be encompassed within protection domain of the present utility model.Therefore, the protection domain that protection domain of the present utility model should limit with claims is as the criterion.
Claims (6)
1. a modification internal expansion type frock, is characterized in that: form primarily of expander seat (1), tightening nut (2), expander (3) and dust cap (4); Described expander (3) is arranged on expander seat (1); Described expander (3) is provided with tightening nut (2) with the junction of expander seat (1); Described dust cap (4) is positioned at the top of expander (3); The top of described expander seat (1) is addendum cone (7); The top of described dust cap (4) is also arranged top (6); Described dust cap (4) and addendum cone (7) are fixed together; The diameter of described dust cap (4) is greater than the diameter of addendum cone (7).
2. a kind of modification internal expansion type frock according to claim 1, is characterized in that: the surface of described addendum cone (7) is the central term conical surface of 60 °.
3. a kind of modification internal expansion type frock according to claim 1, is characterized in that: workpiece (5) positioning sleeve is located at the top of expander (3) by described top (6) and addendum cone (7).
4. a kind of modification internal expansion type frock according to claim 1, is characterized in that: be thread connecting mode between described tightening nut (2) and expander seat (1), expander (3).
5. a kind of modification internal expansion type frock according to claim 1, is characterized in that: described top (6) and addendum cone (7) are positioned on same center line.
6. a kind of modification internal expansion type frock according to claim 1, is characterized in that: the height of described expander seat (1) is greater than the height of expander (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520808273.9U CN205057205U (en) | 2015-10-14 | 2015-10-14 | Modification internal expanding formula frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520808273.9U CN205057205U (en) | 2015-10-14 | 2015-10-14 | Modification internal expanding formula frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205057205U true CN205057205U (en) | 2016-03-02 |
Family
ID=55383808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520808273.9U Active CN205057205U (en) | 2015-10-14 | 2015-10-14 | Modification internal expanding formula frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205057205U (en) |
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2015
- 2015-10-14 CN CN201520808273.9U patent/CN205057205U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 321000 Jinwu street, No. 456 of low hill gentle slope comprehensive development park in Jiangdong Town, Jindong District, Jinhua, Zhejiang Patentee after: Zhejiang Volkswagen Gear Co., Ltd. Address before: 321000 Jinwu street, No. 456 of low hill gentle slope comprehensive development park in Jiangdong Town, Jindong District, Jinhua, Zhejiang Patentee before: JINHUA DAZHONG GEAR CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |