CN209006798U - A kind of reamer connected by conical surface expansion fashion - Google Patents
A kind of reamer connected by conical surface expansion fashion Download PDFInfo
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- CN209006798U CN209006798U CN201821940897.6U CN201821940897U CN209006798U CN 209006798 U CN209006798 U CN 209006798U CN 201821940897 U CN201821940897 U CN 201821940897U CN 209006798 U CN209006798 U CN 209006798U
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- cylindrical body
- screw
- conical surface
- knife bar
- blade
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Abstract
This application discloses a kind of reamers connected by conical surface expansion fashion, including knife bar, a cylindrical body outstanding is provided on the top surface of the knife bar, the center of the cylindrical body is hollow structure, the inner headed face of the cylindrical body is the conical surface for having gradient, one end inside the cylindrical body close to the knife bar is provided with threaded hole, blade is cased on the outside of the cylindrical body, it lays fixed retaining ring and hard alloy coning sleeve from the bottom to top at the center of the cylindrical body, a screw is cased at the center of the cylindrical body.This connection type is all very low to the structural requirement of knife bar and blade, it is only necessary on knife bar and cut upper certain conical surface on screw, so difficulty of processing is low, cost is also very low；Especially for diameter in 20mm blade below, because blade area is small, screw is installed without more positions, this connection type only needs a screw just to can reach perfect connection.
Description
Technical field
The present disclosure relates generally to reamers, and in particular to a kind of reamer connected by conical surface expansion fashion.
Background technique
Currently, for the reamer in lathe ream field can all involve how to that accurately blade is mounted on knife bar
This technical problem, traditional connection type have very much, for example cross positioning method connection, screw connection, welding or directly will
Knife bar and being made of one of cutter head, but these connection types cannot after more or less all there are some problems, such as connection
It realizes that the various special construction difficulty of big repetition precise positioning, the bounce of blade and knife bar, processing nut arbor and cutter head are big, be processed into
This height etc., for some diameter ranges in the blade of 20mm or more, the above method also be can play a role, but be directed to
The blade of 20mm or less diameter is difficult to above method connection knife bar.
Utility model content
In view of drawbacks described above in the prior art or deficiency, it is intended to provide a kind of hinge connected by conical surface expansion fashion
Knife, the reamer can the reamer blade accurately by diameter in 6mm-20mm be connected on knife bar, final realize is connected firmly, and
Position will not deviate when more allowing blade replacement repeatedly, realize resetting.
In a first aspect,
According to technical solution provided by the embodiments of the present application, a kind of reamer connected by conical surface expansion fashion, including knife
Bar, a cylindrical body outstanding is provided on the top surface of the knife bar, and the center of the cylindrical body is hollow structure, the circle
The inner headed face of cylinder is the conical surface for having gradient, and one end inside the cylindrical body close to the knife bar is provided with threaded hole, institute
It states and is cased with blade on the outside of cylindrical body, lay fixed retaining ring and hard alloy from the bottom to top at the center of the cylindrical body
Coning sleeve is cased with a screw at the center of the cylindrical body.
In the utility model, further, the center of the blade is equipped with a circular hole, and the diameter of circular hole is greater than the circle
Cylinder overall diameter 0.01mm-0.02mm.
In the utility model, further, the inside of the knife bar is equipped with screw installing hole, screw installing hole and the circle
The center of cylinder communicates.
In the utility model, further, the lower end of the screw is equipped with screw thread, and upper end is round centrum shape.
In the utility model, further, the lower end of the screw installing hole is equipped with screw thread.
It is in 20-10 between the inner headed face and horizontal plane of the cylindrical body further in the utility model0Angle.
It is in 2 between the screw upper end and horizontal plane further in the utility model0- 100 angles.
In conclusion the application's has the beneficial effect that:
1, this connection type is all very low to the structural requirement of knife bar and blade, it is only necessary to cut on knife bar and on screw
Certain conical surface, so difficulty of processing is low, cost is also very low；
2, particularly for diameter in 20mm blade below because blade area is small, without more positions pacify
Screw is filled, this connection type only needs a screw just to can reach perfect connection；
3, because in reaming, blade can be often worn out, and need to regularly replace, the reamer of this connection type, only
It needs screw to unscrew, changes the new blade of block, replacement is easy, and position will not deviate after replacement, and it is fixed to repeat
Position precision is high, beats also small.
4, the concentricity of blade, outer circle and inner hole is very high, can achieve within 0.002mm, and repetitive positioning accuracy is very
Height can achieve within 0.005mm；
5, material is saved, it is very environmentally friendly；
6, user's operation is simple, saves cost of manufacture and use cost.
Detailed description of the invention
By reading a detailed description of non-restrictive embodiments in the light of the attached drawings below, the application's is other
Feature, objects and advantages will become more apparent upon:
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the structural schematic diagram of the middle blade of the utility model.
Figure label:
Knife bar -1；Cylindrical body -2；Blade -3；Fixed retaining ring -4；Hard alloy coning sleeve -5；Screw -6.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining relevant utility model, rather than the restriction to the utility model.It further needs exist for illustrating
, part relevant to utility model is illustrated only for ease of description, in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Please refer to Fig. 1 and Fig. 2, a kind of reamer connected by conical surface mode, including knife bar 1, blade 3 and screw 6, knife bar
Be provided with a cylindrical body 2 outstanding on 1 top (joint face with blade 3), 2 center of cylindrical body be it is empty, in cylindrical body 2
Disc cuts the conical surface of certain gradient, and the inside of the downward knife bar 1 in the bottom of cylindrical body 2 is additionally provided with threaded hole；In blade 3
The heart is also equipped with a circular hole, is carved with screw thread for one section below screw 6, above one section be round centrum shape.Among screw 6 also
It is provided with a fixed retaining ring 4, is cased with a hard alloy coning sleeve 5 above screw 6.The main work of hard alloy coning sleeve 5
With being to prevent screw 6 from causing too big extruding (to add hollow after this set hollow cylinder 2 during being screwed down
Cylindrical body 2 just only needs to bear downward pressure, does not need the pressure for bearing side rotation), fixed retaining ring 4 is then in order to prevent
Screw 6 is rotated outward when more allowing blade replacement 3, hard alloy coning sleeve 5 is avoided not take not come out.
Mounting means: the cylindrical body 2 that the round-meshed blade 3 in center passes through 1 top of knife bar is first placed on 1 cylindrical body of knife bar
On 2, when blade 3 is placed on 1 cylindrical body 2 of knife bar, general 0.01mm is had between 1 cylindrical body 2 of 3 inner circle of blade and knife bar
Gap, then be put into 1 hollow cylinder 2 of knife bar with a screw 6 and be connected with the threaded hole on knife bar 1, then slowly
Tighten, during being screwed down screw 6, screw 6 can constantly squeeze the hollow cylinder 2 on 1 top of knife bar, allow cylinder
Body 2 expands, and when extrusion screw is completed, the expansion of general 0.01mm-0.04mm or so, cylindrical body 2 can occur for cylindrical body 2
3 circular hole of blade can be constantly adjacent to outward during expansion, since screw 6 and cylindrical body 2 are both provided with certain gradient
The conical surface, so in extrusion process can be more stubborn more be bonded, by it is this with screw 6 outwardly against knife bar 1, allow the expansion of knife bar 1 most
The connection type for being adjacent to blade 3 outward eventually reaches the perfect combination of blade 3 Yu knife bar 1.
In the technical scheme, fixed retaining ring 4 and hard alloy coning sleeve 5 can play the group of phase same-action using other
Part or structure replace.During installation, screw 6 can be across fixed retaining ring 4 and hard alloy coning sleeve 5.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art
Member is it should be appreciated that utility model range involved in the application, however it is not limited to made of the specific combination of above-mentioned technical characteristic
Technical solution, at the same should also cover do not depart from the utility model design in the case where, by above-mentioned technical characteristic or its be equal
Feature carries out any combination and other technical solutions for being formed.Such as features described above and (but being not limited to) disclosed herein have
The technical solution for thering is the technical characteristic of similar functions to be replaced mutually and being formed.
Claims (7)
1. a kind of reamer connected by conical surface expansion fashion, including knife bar (1), it is characterized in that: the top surface of the knife bar (1)
On be provided with a cylindrical body (2) outstanding, the center of the cylindrical body (2) is hollow structure, the inner circle of the cylindrical body (2)
Face is the conical surface for having gradient, and the internal one end close to the knife bar (1) of the cylindrical body (2) is provided with threaded hole, the circle
Blade (3) are cased on the outside of cylinder (2), laid from the bottom to top at the center of the cylindrical body (2) fixed retaining ring (4) and
Hard alloy coning sleeve (5) is cased with a screw (6) at the center of the cylindrical body (2).
2. a kind of reamer connected by conical surface expansion fashion according to claim 1, it is characterized in that: the blade (3)
Center be equipped with a circular hole, the diameter of circular hole is greater than the cylindrical body (2) overall diameter 0.01mm-0.02mm.
3. a kind of reamer connected by conical surface expansion fashion according to claim 1, it is characterized in that: the knife bar (1)
Inside be equipped with screw installing hole, screw installing hole communicates with the center of the cylindrical body (2).
4. a kind of reamer connected by conical surface expansion fashion according to claim 1, it is characterized in that: the screw (6)
Lower end be equipped with screw thread, upper end is round centrum shape.
5. a kind of reamer connected by conical surface expansion fashion according to claim 3, it is characterized in that: the screw is installed
The lower end in hole is equipped with screw thread.
6. a kind of reamer connected by conical surface expansion fashion according to claim 1, it is characterized in that: the cylindrical body
It (2) is in 2 ° of -10 ° of angles between inner headed face and horizontal plane.
7. a kind of reamer connected by conical surface expansion fashion according to claim 4, it is characterized in that: the screw (6)
It is in 2 ° of -10 ° of angles between upper end and horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821940897.6U CN209006798U (en) | 2018-11-23 | 2018-11-23 | A kind of reamer connected by conical surface expansion fashion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821940897.6U CN209006798U (en) | 2018-11-23 | 2018-11-23 | A kind of reamer connected by conical surface expansion fashion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209006798U true CN209006798U (en) | 2019-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821940897.6U Active CN209006798U (en) | 2018-11-23 | 2018-11-23 | A kind of reamer connected by conical surface expansion fashion |
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| CN (1) | CN209006798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434201A (en) * | 2018-11-23 | 2019-03-08 | 成都齐平科技有限公司 | A kind of reamer connected by conical surface expansion fashion |
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2018
- 2018-11-23 CN CN201821940897.6U patent/CN209006798U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434201A (en) * | 2018-11-23 | 2019-03-08 | 成都齐平科技有限公司 | A kind of reamer connected by conical surface expansion fashion |
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